2015年12月30日星期三

Hydraulic piston pump is developed rapidly in recent years

This paper introduces the structural characteristics and working principle of a new type of hydraulic piston pump, diesel pump manufacturers and the performance parameters of this kind of pump is also introduced. Production practice of the type hydraulic piston pump by the Shenyang oil recovery of high pour point oil, compared with using conventional hydraulic piston pump cycle, period of changing the pump is extended from 1 months to 9 months, can save the pump inspection costs more than 1 yuan.
Hydraulic piston pump is developed rapidly in recent years a rodless oil pumping equipment.It depends on the hydraulic transmission energy, pumping crude oil to the ground from the well.It can rely on the hydraulic up, adapt to the high wax oil, high pour point oil in deep well, deep well and complex well conditions. The Shenyang oil field has since the end of 1986 formally put into development, mechanical fuel level gauge ,in order to meet the need of high pour point oil mining, hydraulic piston pump as a recovery of high pour point oil reservoir.





2015年12月26日星期六

Single chamber piezoelectric gas transfer pump design

The simulation results show that: the first-order natural frequency below the valve in the pump working frequency, fuel card management system and when the critical pressure acting on the valve on both sides of the value is greater than 0.8 kPa when the valve opening height, because is too large to be restored to
the closed pump due to job failure.
For the manufacture of gas output performance good piezoelectric pump, designed a kind of umbrella shaped rubber valve model. Analyzed the flow characteristic umbrella shaped rubber valve, and using Ansys software, simulation analysis on performance of the valve,automated fuel management system to determine the critical pressure umbrella shaped rubber valve of the first 10 order natural frequency and valve failure effect in the valve on both sides of the value.

2015年12月22日星期二

Hydraulic piston pump surface gathering process

The hydraulic piston pump oil recovery system can be divided into two types of open cycle and closed cycle by power liquid circulation.
In Open Systems (OPF), fluid power and recovery liquid mixing together back out of the ground, fuel pump dispenser in a closed system (CPF), ground and downhole fluid circulates in a closed loop, and pick out feed. Open type hydraulic piston pump system closed hydraulic piston pump oil production system ground transportation process open power fluid system of surface gathering process, the process is more suitable for multi well system, under the jurisdiction of the numbers, dozens of wells.
Simple and economic are the main features of the open process. Of course, in the open system, water or other liquid is used as the power fluid, but due to the addition of chemical additives, portable fuel transfer pump lubricating, anti rot, deoxygenation) to produced liquid mixing produced generally has been lost. Therefore must be continuously added.


2015年12月18日星期五

Electric gear pump body base mounted motor

Electric gear pump body base mounted motor. Because the pump body weight than the motor, but it and other equipment for the pipeline connected to each other, while other equipment after installation, gas fuel pump body position can be determined, and the position of the motor can be adjusted according to the electric gear pump body position. Hoisting installation steps electric gear pump body electric gear pump body, pump available for small, people raised on its pedestal. For medium-sized pump, can use hauling frame and rollers rolling on the inclined plane to transport and install. For medium and petrol dispenser pump, can use the rafter gantry hoisting, sometimes using a single wooden derrick and the other pulley group together for lifting. In addition, can also use the workshop or basis over the original hoisting machinery (such as bridge cranes, electric hoist, lifting pump) will be directly to the foundation. Hoisting slings, should be bound in the lower electric internal meshing gear pump body, shall not be binding on a shaft or bearing.

2015年12月14日星期一

Head liquid delivery device

According to the process, drainage requirements, from five aspects to consider the amount of liquid delivery device head, fluid properties, piping layout and operating operating conditions;
Flow is selected barrel cng pump head is another important performance data for key performance players move one data device system manual fuel transfer pump required, the general use of amplified 5% -10% margin lift for selection;
Fluid properties, including liquid media name, physical properties, chemical properties and other properties;
Piping layout condition barrel pump device system refers to the highly liquid feeding liquid feed liquid feed to the distance to the system head NPSH calculations and checking

2015年12月10日星期四

Hydraulic piston pump is a hydraulic drive rodless pumping equipment

which is powered from the ground by the pump tubing or a dedicated channel power fluid pumped downhole pressurized after driving motor up and down reciprocating motion, will spread to the underground high-voltage power fluid drive cylinder and valve, to help downhole pumping piston. hydraulic piston pump for high gas-oil ratio, sand, high pour point oil, wax, oil, deep, deviated and horizontal wells has strong adaptability. Hydraulic piston pump oil tank monitoring system components and types: hydraulic piston pump system consists of ground power tank, high pressure triplex pumps, control manifold, wellhead control valves and downhole pump. Downhole pump is the core component of the system. Downhole pump hydraulic piston pump with a single and double acting two kinds of ground with high-pressure piston pumps. There are two processes: ① open process. Single-tube structure, with low viscosity oil for power fluid, the pipeline will reduce friction, but also reduce the viscosity of the oil extracted and mixed with the produced fluid taken out of the ground. ② closed processes. With a light oil or water as the power fluid, lubricants and preservatives to be added when water is not mixed with the hydraulic piston pump circulating their own output.

2015年12月6日星期日

Notes gas transfer pump

Because not fully preheated, will pump in around uneven thermal expansion, so that static seal fuel transfer hand pump leakage points. Such as export, import flanges, pump large cap flange, balance pipe leak, fire or even cause serious accidents, explosions and so on. Heat pumps should pay attention to what Preheat: Preheat the process to correct. The general process is: the petrol dispenser pump outlet pipe entrance across the line pump pre hotline pump inlet. Preheat valve can not open too large to prevent the pump reverse. Preheat the pump speed is not too fast in general, should be less than 50 ℃ / h. Under special circumstances by the portable fuel transfer pump steam, hot water and other measures to speed up the warm-up speed. When the warm-up of 30 to 40 minutes should drive the car 180 °, in order to avoid uneven heating and bending the shaft up and down every.

2015年12月2日星期三

Measurement and adjustment of the pump include alignment

Measurement and adjustment of the pump include alignment, looking for elevation and leveling three areas.(1) vertical alignment is to find the positive engagement of the gear pump is electric, horizontal centerline. Longitudinal centerline of the gear meshing electric external gear pump is based on the shaft centerline prevail; transverse centerline to centerline of the outlet pipe shall prevail. When in alignment, the mounted device according to the center line (or center line of the stud and base) to be measured and adjusted so that the longitudinal engagement of the manual fuel transfer pump motor, and meet the requirements of the drawing of the transverse center line, and with well connected to other devices. Internal gear meshing vertical electric pump, the horizontal centerline by drawing dimension tolerances within ± 5mm range.Is the shaft centerline elevation (2) to find the elevation of the petrol dispenser pump prevail. Generally used to measure the water level when looking for elevation. When measuring, the benchmark reference point on the plant settings, measured water level of the mounted height, and then moved to the journal benchmark, measure the distance from the shaft surface mounted to, and then the pump can be calculated according to the formula shaft centerline elevation.

2015年11月28日星期六

Electric gear pump body base mounted motor

Electric gear pump body base mounted motor. Because the pump body weight than the motor, but it and other equipment for the pipeline connected to each other, while other equipment after installation, electric gear pump body position can be determined, and the position gas transfer pumpof the motor can be adjusted according to the electric gear pump body position. Hoisting installation steps electric gear pump body electric gear pump body, pump available for small, people raised on its external gear pump pedestal. For medium-sized pump, can use hauling frame and rollers rolling on the inclined plane to transport and install. For medium and large pump, can use the rafter gantry hoisting, sometimes using a single wooden derrick and the other pulley group together for lifting. In addition, can also use the workshop or basis over hydraulic piston pump the original hoisting machinery (such as bridge cranes, electric hoist, lifting pump) will be directly to the foundation. Hoisting slings, should be bound in the lower electric internal meshing gear pump body, shall not be binding on a shaft or bearing.

2015年11月24日星期二

The interior layout of the pump

The interior layout of the pump, when the transmission fluid temperature is higher than the spontaneous combustion of liquid or for liquid hydrocarbon transport, and other external gear pump are respectively arranged in each room, and separated by a firewall. For open or semi open layout of the pump, general pump and prime mover so that the axis and the vertical axis of pipe gallery. Pump arranged in the interior, is generally not considered motor vehicles require maintenance. Between the end of the electric petrol pump or pump side and the wall spacing should not be less than 1.2~1.5m, between the two rows of pump spacing of not less than 2m; reciprocating pump power of steam side and side parts for pumps should be left out of the location of the piston and rod; vertical pump arranged in the pipe below the gallery below or above the frame, pump body should be set aside. Installation and maintenance required space; piping layout, the pump on both sides to do at least one side for repair.

2015年11月20日星期五

Internal gear pump working principle

Internal gear pump working principle, is the technology provides, internal and external gear pitch circle on one side, the other side is "crescent plate 'two separated, gear to rotate in the same direction, no trapped fluid phenomenon, gas station pump advanced structure, small size, large flow, low noise, long life. Structure characteristics gas transfer pump of internal gear pump for conveying a variety of light, hydraulic piston pump volatile liquid, or heavy, viscous liquid, semi-solid or liquid. Widely used in petroleum, chemical, oil, paint and other industries. Internal gear pump for conveying saponin, silicone oil, rosin, medium high viscosity coating and so on, a wide range of applications. Gear internal gear pump structure.

2015年11月16日星期一

Fuel dispenser fuel from the power supply to the nozzle effect

Marine fuel dispensers in combustion engines is the role of the same amount of fuel in the fuel from the mains to nozzle, therefore, marine fuel dispensing machine state directly on the distribution of temperature field in combustion and had an impact, especially for heavy oil firing unit, oil temperature and oil on the marine influence of fuel dispenser life is great, how to maintain the long-term stable operation of the fuel distributor, is a topic of the power plant are more concerned about the. Machine for the combustion engine, the fuel distributor for use, the use of 10 years especially burning heavy oil, continuous exploration, has accumulated some experience. Company's marine fuel dispensing meters is composed of 10 positive gear pump gear pump units, each including the same size of two gear, the short axis of each unit are connected in series into a whole, the same speed, still can equal allocation of fuel to ensure export each unit in the back pressure under different circumstances, with a starting motor, in starting motor drive by 5 seconds, followed by motor power loss, power distributor work by the pressure difference between import and export of offer, an overrunning clutch between the motor and the distributor, when the motor stops working, the distributor speed exceeds the speed of motor, motor and marine fuel dispensers, the distributor can free running, do not form in the motor load distributor operation.

2015年11月12日星期四

Meaning mechanical pump

mechanical pump from the motor and pump two parts. Ordinary mechanical pump driven by the motor shaft rotation through a belt; straight mechanical pump is connected directly to the motor shaft, without intermediate transmission links. The principle is the use of a mechanical pump gas expansion, compression, discharge of the gas from the container extracted. Is called a mechanical pump, because it is the use of mechanical methods, cyclically vary the volume of the pump suction chamber, the gas in the vessel continuously expanded by a pump to the inlet of the suction chamber, and It is discharged through the exhaust port by the compression pump. Change the volume of the suction chamber of the pump piston reciprocating manner, stator and rotary vane type, called a reciprocating mechanical pump, mechanical pump stator and rotary vane mechanical fuel dispenser. Due to practical applications, rotary vane mechanical pump to use more, is to rotary vane mechanical pump as an example of their work.

2015年11月8日星期日

fuel pump dispenser are auto parts industry jargon

fuel pump dispenser are auto parts industry jargon. It is one of the basic components of EFI vehicle fuel injection system. Role is to suck the fuel from the fuel tank, after the pressure supplied to the supply pipe, the fuel pressure regulator and with the establishment of some fuel pressure. diesel hand pump by the electric motor, pressure limiter, check valve structure, the electric motor fuel pump actually work in the shell, do not worry, because the shell does not have any thing can ignition, fuel can lubricate and cool the motor fuel, the oil port was equipped with check valve, pressure limiter is located in the pump housing on the pressure side, with access to the inlet channel.

2015年11月4日星期三

fuel transfer hand pumps features

fuel transfer hand pump is directly driven by a diesel engine can be started in a relatively short period of time and to achieve the water supply of electromechanical equipment. diesel hand pump is set microelectronic technology, digital technology, computer technology, information processing technology, industrial automation and control technology, communications technology and mechanical technology of high-tech products as one of its features are automatic start, automatic charging, automatic alarm, automatic preheating, Automatic even try, you can also request to set another alarm output, with telemetry, remote, remote control functions. Troubleshooting methods.



2015年10月31日星期六

Tanker blade failure

submersible fuel pump failure; if vane pump relief valve is not closed. Due to a foreign body (broken shrapnel, etc.) between the relief valve stuck in the valve and valve seat, causing the fluid inside the loop always do and can not flow in the diesel pump manufacturers, repairs should remove the spool valve to clear foreign body; if Because the pump with the rotor blades and the shrapnel long do high-speed operation, due to fatigue and wear, fracture, resulting in vane pump discharge increases, even when serious loss of pumping action, the pump should be cleared of debris and repair damaged leaves, shrapnel, re-installed after replacing the new; and vane pump and gas separator combined with the surface of the pump pad breakdown or anti-loaded, can also cause vane pump high-pressure chamber communicates with the low pressure chamber, resulting in the loss of the oil discharge vane pump function; if vane pump loose rotor and the rotor shaft, causing the shaft idle, then repair or replace the rotor blades need to pump.

2015年10月28日星期三

The use of diesel fuel pumps

Diesel pump using compressed air to increase air temperature, air temperature over the diesel combustion test, then injected into diesel, diesel spray and air mixture at the same time their ignition. Compared with the gasoline engine, diesel engine is a diesel dispenser pump has the advantages of low price, good economy, and it has no ignition system, so the fault is less. But the diesel dispenser pump because of work pressure, the structural strength requirements of all relevant parts and has higher rigidity, so diesel heavy, large volume; diesel fuel dispenser pumps fuel injection pump and nozzle manufacture accuracy requirement is high, so the cost is higher; in addition, diesel dispenser pump crude, vibration and noise of diesel engine is not easy evaporation; difficult to start a car, cold winter.

2015年10月24日星期六

Difference between vane vacuum pump

Vacuum pump is the use of mechanical, physical, chemical or physicochemical methods have been drawn container obtained by vacuum suction device or equipment. Popular terms, the vacume pump is a closed space in a variety of ways to improve, create and maintain a vacuum device.
Press the pump works, pump basically be divided into two types, namely gas pumps and gas transmission pump trap. It is widely used in metallurgical, chemical, food, electronics coating and other industries.
Vane pumps are vane type pump housing (stator ring) in contact with the rotor slot, and the suction side of the liquid from the inlet pressure to the oil discharge side of the pump.

2015年10月20日星期二

defined tank level gauge system of

tank level gauge system is a static of large reserves of liquid in the tank to measure the generic product. It can be used for inventory measurement, namely the determination of the total amount of product in the tank level gauging can also be used for transmission and transfer of measurement, that is, as product marketing and tax basis. Mainly in two ways: based on the volume-based measure of quality.
In volume-based tank gauging systems, the inventory measurement was performed by measuring the level and temperature. In tank gauging system based on the quality of the stock is measured using a liquid fluid column hydrostatic measurement made. In turn metering or inventory control output, regardless of what method, the reliability and accuracy of measuring instruments is very important.
The main tank gauging equipment manufacturers are Emerson Rosemount, Honeywell grace Stratford, E + H and the like.

2015年10月16日星期五

What gas stations management software ah

Extraordinary gas station management system (Integrated Management Edition) is a comprehensive type of station management software, including oil management, merchandise management, other management, report management, basic information management, system management module. Its graphical operation, navigational interface is still the continuation of the traditional characteristics of an extraordinary series software provides an intuitive and efficient mode of operation for many users. Software interface design simple, elegant, user-friendly operating procedures, so that ordinary users can quickly grasp without training the software to use operation. Computer configuration requirements low, is a powerful tool for information management service stations. Oil management: including senior members of refueling, ordinary members refueling, forward / back oil management, payment management, oil spill newspaper reported loss, save / store oil / debt membership management, membership points and other functions. Product Management: including procurement of storage, purchase returns, purchase payments, retail and other functions. station management system: including other payments, bank deposits / withdrawals, bank transfers and other functions. Basic information: including oil information, tank information, refueling gun information, vendor information, membership information, vehicle information, employee information, product information and other functions. Opening information: oil beginning stocks, commodities beginning stocks, oil beginning to cope, to deal with commodity beginning, members save money at the beginning, members of the arrears beginning, members of the opening deposit oil function. System Management: includes data backup, data recovery, data initialization, operator management, password changes, unit information, system settings, and other functions.

2015年10月13日星期二

Pump works are what

manual gas pump: The engine crankshaft via two belt-driven air pump, which drives the piston pump, hit the gas through a pipeline to import gas cylinder. On the other hand accumulator and through a gas pipeline to the gas introduced into the gas cylinder is fixed to the pump's pressure regulator to control the gas cylinder pressure. When the gas pressure within the regulator set-Jane's pressure is not reached, the gas enters the regulator from the gas cylinder pressure regulator valve can not open items; when the gas cylinder pressure regulator adjusted to achieve the predetermined pressure when entering the regulator from the gas cylinder gas pressure regulator valve to open the top, into the pump in communication with the regulator airway and controls the pump inlet through the airway normally open, so that the pump empty load operation , to reduce power consumption, pump protection purposes. When the gas cylinder pressure regulator due to wear and tear and it is set lower than the pressure within the regulator valve return spring to return, disconnect pneumatic air pump control, mechanical pump. My personal solution is crooked between accumulator and catheter valve, cheer when the gas pressure to the inside because the outside world opened up when mentioning the reason because the intake is closed, so accumulator sucked outside air rather then playing into the air sucked out.


2015年10月9日星期五

The concept of hydraulic piston pump

hydraulic piston pump or solids pumps, hydraulic power pack to drive the hydraulic cylinders, hydraulic cylinders advance the delivery cylinder, the delivery of materials to pipe the output of the cylinder. Generally divided into single and double piston plunger, typical representatives of the four kinds of German Putzmeister solids pumps, which are: EKO single piston, KOS, KOV, HSP three kinds of double-piston pump. The pump belongs to positive displacement pumps, especially for high solid content, long distance pipeline viscous material, the advantage is to run very stable and reliable, but noisy, delivery pressures up 130Bar, displacement of up to 0.5 to 500 cubic meters / hour. Widely used in sewage treatment, solid waste treatment, mining and metallurgy, dredging, dredging, petrochemical, power plants, cement industry and other fields.
manual gas pump: The engine crankshaft via two belt-driven air pump, which drives the piston pump, hit the gas through a pipeline to import gas cylinder.

2015年8月23日星期日

Piston advantage


The plunger piston is reciprocated by causing changes in the volume of the seal is achieved with the suction diesel pump manufacturers oil pressure, as compared with gear pumps and vane pump which has many advantages in the cylinder.
First, the parts constituting the sealed volume of the cylindrical piston and cylinder bore, easy to process, can be obtained with high accuracy, good sealing performance, high-pressure work is still high volumetric efficiency;
Second, simply by changing the working stroke of the plunger can change the flow, easy to implement variable;
Third, the piston in the main parts are under pressure stress, the material strength properties can be fully utilized.
Due to the high pressure submersible fuel pump
, compact structure, high efficiency, easy flow regulation, so the need for high pressure, high flow, high-power systems need to adjust the flow rate of the occasion and, as the goal planer, broaching machine, hydraulic machines, construction machinery, mining metallurgical machinery, widely used on the ship. Piston arrangement and the direction of movement of the plunger can be divided into radial and axial piston pump piston into two categories, according to the assignment device type can be divided with a gap-type seal with flow deputy piston and valve piston pump with flow control devices into two categories, according to whether the variable displacement piston pumps are divided into quantitative and variable piston pump.

2015年8月19日星期三

Piston principle pump


Piston pump has been around for decades, its popularity depends on two main reasons:
1, they do not require external energy - the force of water to provide them with the required energy.
2, their equipment is extremely simple, with only two moving parts.
The basic principle is simple manual gas pump. Momentum This pump uses a relatively large movement of water to the relatively small volume of water pumped upward.
To use the plunger, there must be located above the water portable fuel transfer pump. For example, to have a pond on the hillside, so that you can install the water pump in the pond below. With a lead pipe water from the pond pump. Pumps have a valve that lets water flow through the pipes and acceleration.

2015年8月15日星期六

Piston About folded edit this section


Hydraulic piston pump or solids pumps, hydraulic power pack to drive the hydraulic cylinders, hydraulic cylinders advance the delivery cylinder, the delivery of materials to pipe the output of the cylinder.
KOS hydraulic piston pump
KOS hydraulic piston pump
Generally divided into single and double piston plunger, typical representatives of the four kinds of German Putzmeister solids pumps, which are: EKO single piston portable fuel transfer pump, KOS, KOV, HSP three kinds of double-piston pump.
The pump belongs to positive displacement submersible fuel pump, especially for high solid content, long distance pipeline viscous material, the advantage is to run very stable and reliable, but noisy, delivery pressures up 130Bar, displacement of up to 0.5 to 500 cubic meters / hour. Widely used in sewage treatment, solid waste treatment, mining and metallurgy, dredging, dredging, petrochemical, power plants, cement industry and other fields.

2015年8月11日星期二

Hydraulic piston pump


Hydraulic piston pump or solids pumps, hydraulic power pack to drive the hydraulic cylinders, hydraulic cylinders advance the delivery cylinder, the delivery of materials to pipe the output of the cylinder. Generally divided into single and double piston plunger, typical representatives of the four kinds of German Putzmeister solids hand gasoline pump, which are: EKO single piston pump, KOS, KOV, HSP three kinds of double-piston pump. The pump belongs to positive displacement petrol dispenser pump, especially for high solid content, long distance pipeline viscous material, the advantage is to run very stable and reliable, but noisy, delivery pressures up 130Bar, displacement of up to 0.5 to 500 cubic meters / hour. Widely used in sewage treatment, solid waste treatment, mining and metallurgy, dredging, dredging, petrochemical, power plants, cement industry and other fields.

2015年6月30日星期二

Do you know how small fuel dispenser is to set it?

For the method of setting a small marine fuel dispensers functions may not be used by users may be unfamiliar, and therefore a tripod Machinery for everyone to do a brief introduction:
1: Price set
In standby mode, press the [Unit] key, the unit price of the highest priced LCD display digits flash, enter the value you want to set the unit price, press the [ENTER] key to end the unit price is set, then the unit price unit price LCD display is changed to value set. retail fuel dispensers off the main power, and then turn the fuel dispenser power enters the standby state.
In the setting process, press [Up] key forward displacement of the flashing digit, press [Down] button, the flashing digit backward shift.
Price setting range: 0.01 to 99.99.
Note: Price is set to enter another approach is in the standby mode, press [function] button, the middle two horizontal oil LCD flashes, press [1] key, then press the  key to enter the unit price , the operation above.
2: The system version number View
In standby mode, press  key, the amount of LCD displays [- - - - - -], fuel LCD display [- - - - - -] in the middle of two horizontal lines flashing. Press button, then press the key to enter the system version number to check the status, the display changes to the following states. Where the lowest two keyboard display flashes, the two systems is the version number, press the  key to exit the system version number to check the status.
3: Accumulated oil is cleared
In standby mode, press and hold the [cumulative] key does not let go, and then press the [Reset] key, the accumulated oil is cleared.
Of particular note is the use of small fuel dispenser before various functions set in the standby state, after setting is completed, turn off the main power refueling, then re-open the dispenser power enters the standby state.

2015年6月26日星期五

Electronic dispenser installed before use to do the work

Now more and more industrial and mining enterprises, oil vehicles and the need to use a small fuel dispenser refueling equipment, its lightweight and flexible, and easy to carry more of the users of all ages. However, many users in the purchase of small portable fuel dispenser, due to a defect on the knowledge or skills, do not know how to install and use a tripod for this machine to give you guidance on January:
1. Install the transparent tube: Transparent tube is used to see if there is full and can not have bubbles, otherwise it will affect the accuracy of the measurement. The transparent tube connected cng fuel dispenser into port, the other end of the filter, and fixed by hoops.
2. The activities of the two black tubing connector: Connect one end of refueling guns, and the other end connected to the electronic dispenser. Attention must be sealed to prevent oil spills, leaks.
3. energized: positive and negative poles, the positive is red clip, clip the negative is black, and the corresponding power supply. Note To ensure contact with a solid, otherwise the computer memory will be wrong.
Press "system is cleared when the pipe is full of oil, press the" Stop Go "after; 4. the first refueling, press the" Start refueling "button, open the grease guns, since there is no oil pipeline, the air flow will be a few counts "button to be cleared. This concludes the entire fuel dispenser installation process.

2015年6月22日星期一

Fuel fuel dispenser common cheating methods are the following

a. Deliberately did not return to zero. Cheating will be transferred to the fuel dispenser automatic zeroing means critical state, no oil pressure at the gun or hand means straining hard to go back to zero, resulting in cumulative number of tables in front.
b. Adjust meter displacement adjusting device. Some gas stations on the displacement meter fuel dispenser adjustment cover lid seals unauthorized removal or pry loose the line drawn After adjustment, turn the wire through the clamp; and some of the lines to stay too long, seals do not need to move, you can adjust the displacement of the cover is removed, make adjustments, can reduce the amount of oil heavy duty fuel dispenser pay 1-5 percent.
c. Hand dial counter digital disc. Some gas stations will be counter glass and the inner surface of the bezel auto fuel dispenser unloaded, while the side facing the customer does not unload. When refueling, a person standing beside the fuel dispenser struck counter digital disc, struck tens refueling capacity, ranging from toggle to single digits.
d. Replace the bevel gear counter spindle. Various types of fuel dispenser, bevel gears its counter spindle geometry and modulus are not the same, usually 20 teeth, 25 teeth. Bevel gear after criminals will be replaced, a tooth for each additional, less paid customer 4-5 percent oil.

2015年6月18日星期四

fuel dispenser Notes

(1) Do the two additional branch line in the tank calibration method pipeline.
(2) Do the two tankers a common suction line branch oil, special circumstances can be added after the oil check before branch.
(3) the storage tank calibration methods suction pipe flanges are not allowed to use oil and rubber mats.
(4) After installing the new pipeline, should be washed clean, debris and sediment inside the tube, in order to avoid debris into the oil-damaged parts; and subject to strict pressure test to confirm no leakage after the installation of the tanker, in order to avoid measurement and are not allowed to use the catastrophic consequences of oil spills.

2015年6月14日星期日

fuel dispenser maintenance

(1) machine pump tanker oil separator that has the filter, which is made of copper mesh nets and blankets composed of a triangular side wall separator can remove the filter cover. Combination pump dispenser filters installed in the inlet. Submersible pump type automatic tank gauge systems with a special filter cartridge, open its cover to remove the filter. Filter regularly (at least once a month) cleaning with gasoline copper mesh cover, damage should be replaced, and remove dirt oil inside the machine, in order to protect the pump and flow meter.
(2) the pressure relief valve on the pump adjustment screw for adjusting the pump, thereby regulating the discharge of oil tank monitoring system. It has been adjusted at the factory. The long-term use, such as discharge oil declined, can the adjustment screw to tighten in order to increase the pressure of the pump, but not more than 0.3MPa, the exhaust oil to meet the requirements.
(3) a combination of a pump dispenser is only suitable for underground tanks, such as the use of high tank calibration software, exhaust pipe Mao phenomenon occurs, then be sure the exhaust pipe blocked.
(4) To avoid the use of oil gun oil gun filler pipe tapping is not normal operating oil containers, etc. by pressing the switch, to avoid damage to the oil gun, causing oil spills. Check periodically tighten the screws on the stopper on the filler pipe to prevent the injection tubing roots loose, damaged.
(5) Adjust the machine accuracy, according to relevant regulations.
(6) Check the electrical part must cut off the power, should not live overhaul. Open the box do not damage the surface explosion proof. Dust explosion cavity foreign body should re-install clean up clean, the cable seal should good, metal pads, gaskets can not be lost, no shortage of the number of screws, tighten the reliable, to ensure explosion-proof electrical component.

2015年6月10日星期三

Several questions about the test the temperature of the fuel dispenser

1. Selection of the thermometer. JJG443-2006 auxiliary equipment requirements thermometer measuring range is -25 ℃ ~ 55 ℃, minimum scale value 0.2 ℃. But now most of the measurement technology used in the practical work agencies inexpensive glass thermometer, this thermometer has the following defects: ⑴ breakable glass thermometer; ⑵ glass thermometer to measure the internal oil temperature gauge is not convenient; ⑶ glass thermometer bulb reaction slower. It is therefore recommended to select digital display platinum resistance thermometer minimum scale value 0.2 ℃, the measurement range of -30 ℃ ~ 60 ℃, the use of platinum resistance temperature sensor, built-in battery power supply, the length (50 ~ 70) cm stainless steel tube protection, not damaged, eye-catching display, rapid, accurate and convenient.
2. Temperature measurements.
2.1 muzzle oil temperature measurement. When measuring oil muzzle temperature, oil oiling the metal gauges must always flow from temperature thermometer segment too, the oil temperature muzzle distance about 1cm, when the thermometer showing the value of steady and rapid reading (or cng fuel dispenser indication When the measurement reaches 50% to 70% of metal gauges capacity), the recording data.
2.2 Metal car fuel dispenser oil temperature measurement. When measuring the oil temperature gauge metal, glass thermometer, thermometer upper line of rope oil, temperature gauge metal segment can reach the central limit (which can be a stick in the other end of the rope, slightly longer than the overflow cover diameter measurement gauges prevent metal thermometer fall), holding a rope into metal thermometer gauge, temperature gauge metal middle segment arrives, after the end (3 ~ 5) min thermometer bulb section before was quickly exposed reading recorded data.
Another approach: When the metal gauges measuring emissions of oil, when oil into about half of the measured temperature in the vessel; or when Metal Tank discharge of oil, in a pitch gauge thermometer bulb row It was measured at about 1cm mouth until the thermometer shows stable reading value, which replaces the oil inside the metal gauges.

2015年6月5日星期五

Hydraulic piston pump closed power liquid system


Because of the small power liquid tank, the system is suitable for oil well, offshore pumping well and densely populated area. For example, in California, the United States, fuel card management system , because many wells located in the towns and offshore, so widely used closed system. In most cases, the closed hydrodynamic system uses water as the power liquid, because of the small friction, the small risk and the little influence on the environment.

However, the use of water as power, automatic fuel dispenser need to add lubricant, and the need for anti-corrosion treatment, these will increase the cost of production management.


2015年6月1日星期一

Hydraulic piston pump stroke


The main control valve is at top dead center. High pressure power liquid from the central tubing through the channel a into the liquid motive cylinder. The main control valve blocked channel B, hydraulic piston pump , the high-pressure power fluid can not enter the cylinder hydraulic motor.

The annular space liquid motive cylinder through the channel of D, main control
valve spool of central h and extraction of crude oil to communicate. In the fluid motive, the pressure difference of the cylinder, fuel dispenser pumps ,the liquid motive piston drives the piston upward movement of the pump.

The spent hydrodynamic fluid and the extracted crude oil were raised to the ground after the tank was worked in the cylinder.. When the piston rod close to the top dead center, hand gasoline pump and the lower control slot f the main control valve spool chamber and extraction of the oil phase communication, the main control valve spool were pushed to the bottom dead center, and the motive fluid to start into the next stroke, punching process will come to an end.


2015年5月29日星期五

Hydraulic piston pump system components and working principle

The underground part of the main unit of hydraulic piston pumps, it was motivated by the three components of hydraulic piston pump and the slide valve control mechanism, automated fuel management system ,which played a major role in pumping the oil.

The ground segment from the ground power pumps, control valves and all kinds of power fluid handling equipment, gasoline flow meter etc., play a role in handling the power supply and liquid.

Middle section with a central power supply of crude oil and oil pipe and worked together with the lack of power was returned to the specialized channel ground.

Works (Working Principals), ground power fluid pressure tubing or special power delivery catheter, fluid power is transmitted to the downhole fluid motor at reversing the slide valve control mechanism, power fluid drive fluid motor, hydraulic motor reciprocates, hydraulic motor driven pump through the piston reciprocating motion,  storage tank calibration methods ,lifting crude oil is pressurized.


2015年5月27日星期三

Closed power fluid system of hydraulic piston pump

In most cases, the closed water system for power fluid power fluid, because compared to water and oil, the frictional resistance is small, the risk of small, less impact on the environment. But water as the power fluid, you need to add a lubricant,  fuel dispensing pump and the need for anti-corrosion treatment, which will increase the production and management costs.

To adapt to the conditions, the reservoir depth and displacement range; wax; heavy oil; inclination. The main drawback, mechanical fuel level gauge ,the unit complex, high precision machining.


2015年5月25日星期一

Hydraulic piston pump system up stroke

Master slide valve is located on the dead. High pressure power fluid through the passageway from the center of the tubing into the liquid motive under a tank. Since the master control slide valve blocked passage b, fuel card management system ,the high-pressure liquid motive power fluid can not enter the tank.

The motive fluid cylinder through the passage d, the master slide valve h in the middle of the annular space to communicate with the extraction of crude oil phase.

On the motive fluid,  portable fuel transfer pump ,under the action of the cylinder under pressure, fluid motive driving the plunger upward movement of the piston pump.

He worked on the cylinder hybrid and lack of liquid crude oil lifted to the ground after extraction. When the piston rod near the top dead center, the lower part of the control slot f the lower chamber of the main spool and extraction of crude oil relative to communication, main spool will be pushed down dead, but was motivated to re-start into the next stroke ,  storage tank calibration methods ,the stroke is ended.


2015年5月22日星期五

The main features of the open process of hydraulic piston pump

Easy and open economy is the main features of the process. Of course, in the open system, it can also be powered with water or other liquid solution, but due to the addition of chemical additives (lubricating, corrosion, oxygen) to be mixed with the liquid recovery recovery generally wear and tear off, automatic fuel dispenser ,it must be added continuously.

Ground gathering process closed power fluid system, as power is relatively small tank, this system is more suitable for oil wells lake,  mechanical fuel level gauge ,sea pumping wells and densely populated areas.

For example, in California, USA, as many oil wells located in the town and the sea, and therefore widely used in closed systems.


2015年5月18日星期一

Ground gathering process of hydraulic piston pump

Hydraulic piston pump oil production system according to the power fluid circulation can be divided into open loop and closed loop two ways. In the open system (OPF), the power was taken out of the liquid are mixed together and back out of the ground; in a closed system (CPF), portable fuel transfer pump and surface and underground movement, the force was circulated in a closed loop, not the recovery phase mix.

Open hydraulic piston pump piston pump hydraulic oil system closed production systems, ground gathering process, gathering and transportation processes open power fluid system, the process is more suitable for multi-well system, the jurisdiction of several members, gas station management system dozens of wells.


2015年5月14日星期四

Hydraulic piston pump system down stroke

Master slide valve located in the dead center. In this case, high pressure power fluid through the passageway from the center of the tubing into the next cylinder liquid a motive, portable fuel transfer pump , the end surface of the piston ring action; at the same time, high pressure power fluid into the chamber through the channel b c, d and then by passage into the motive fluid to the cylinder, in the upper surface of the piston.

Because the piston, under the effect of the two ends of different sizes to produce pressure, motivated by the liquid pump plunger downward. Piston rod is actually an auxiliary control slide valve on the shaft, automated fuel management system ,the lower part of the control slot opened e and f.

When the piston rod near the bottom dead center, the upper control channel e communicate on the master slide valve, storage tank calibration methods ,the lower chamber c and g, a high-voltage power fluid from the control into the main grooves e of the lower end of the slide valve chamber g.

Since the end face of the main spool area under an area larger than the upper end, the role of power fluid under high pressure is generated pressure, cause the main control spool to the top dead center,  fuel card management system ,thereby completing the down stroke.


2015年5月11日星期一

Hydraulic piston pump production systems Classification

(1) according to the number of classification systems well single-well process systems; centralized multi-well pumping systems; hydraulic piston pump ,large centralized pumping system.

(2) Press the power fluid circulating classified, closed loop: the power was not mixed with the produced fluids. Open cycle,  tank automation system the power output was mixed with liquid.

(3) the nature of power by hydraulic power fluid classification crude oil hydraulic piston pump system water-based hydraulic power fluid piston pump piston pump hydraulic lift system concepts hydraulic piston pump is a hydraulically operated rodless pumping equipment, which is powered pump from the ground the tubing or through a dedicated channel pressurized fluid is pumped back underground power, automatic vehicle identification system drive motor down reciprocating motion, power was transferred to the high-pressure cylinder and valve driven underground, to help downhole pumping piston.


2015年5月7日星期四

A bit of oil per day Tips

At present, fuel dispensing equipment domestic mechanical recovery means is divided rod pumps and rodless pump two categories. Rod pump driven by pumping ground power equipment and drive through deep-well pump rod. No sucker rod pump to deliver power without the aid of pumping equipment.

Currently, many types of non-rod pump, such as hydraulic piston pumps, electric submersible pumps, automatic vehicle identification system ,jet pumps, peristaltic pump, screw pump.



2015年5月4日星期一

Integrated temperature probe calibration principle

Integrated temperature sensor calibration principle is to use thermocouple millivolt signal generator generates an analog values corresponding to different temperatures millivolt signal as an input signal transducer; use precision resistance box to generate corresponding to different values of the resistance temperature signal as the input signal of the sensor by adjusting potentiometer response, manual fuel transfer pump , in order to achieve the zero and span adjustments and accuracy of sensor calibration.

Integrated temperature sensor calibration considerations, should pay attention to the wiring polarity, and energized warmed up for 15 minutes after the start tuning. Adjust to the slow speed of the input signal, in order to ensure no overshoot. Do not use excessive force when adjusting potentiometer prevent bad twist. Before adjustment, gas station management software to be ready to check record list, and check the temperature of each thermocouple data checkpoin/ millivolt table or RTD temperature / resistance table, you will need to identify and fill in the already prepared data records in the table.




2015年5月1日星期五

Integrated Temperature Probe Calibration Notes

Integrated temperature sensor become increasingly customer favorite, mainly because of its easy installation, accurate measurement, integrated temperature sensor can generally be divided into three types: one is the DC signal Vi is converted into a linear 4 ~ 20mA DC current or 1 ~ 5V DC voltage DC millivolt output temperature sensor, storage tank calibration methods and the other two are respectively fitted with a thermocouple and thermoelectric rent, and the temperature signal t into a uniform linear 4 ~ 20mA DC current signal I.

And 1 ~ 5V DC voltage signal V. The output of thermocouple temperature sensors and RTD temperature sensors. No matter what kind integrated temperature sensor in the factory when all must be calibrated, portable fuel transfer pump ,calibration requires specific attention to those matters it?


2015年4月28日星期二

Hydraulic piston pump note

Production Engineering, 11-15, chap4, no rod pumping, including electric submersible pumps, hydraulic piston pumps, hydraulic jet pumps. Electric submersible pump (ESP),hydraulic piston pump , a device with a simple structure, high efficiency, large displacement, high degree of automation is widely used in high-yielding non-flowing wells, including wells and offshore oilfields high.

Statistics show that the average fluid production electric submersible pump is more than two times that of conventional rod pump.submersible fuel pump

This morning even have a foreign stranger to me chat client requires hydraulic piston pumps. This initiative fingertips worry haha. . . . portable fuel transfer pump ,censtar released products also received a customer inquiry. Chat with foreigners feel good ah ~ ~ ~


2015年4月24日星期五

Advantages of screw pump system

(1) small-time investment. Electric submersible pump, hydraulic piston pumps and beam pumping unit chain compared screw simple structure,fuel dispensing machine the minimum time investment.

(2) pump efficiency, energy-saving effect, low maintenance costs. Because screw workload stable,gas transfer pump , small mechanical losses, pump efficiency up to 90%, machinery and production equipment in the existing minimum energy consumption, one of the most efficient models.

(3) small footprint. Ground screw device is simple and easy to install.

(4) for heavy oil recovery. In general,gas station dispensers , screw suitable viscosity for 8000mPa · S less crude oil, and therefore the majority of heavy oil can be applied.


2015年4月21日星期二

Compared with other artificial lift methods,screw pump system


(1) meet the high sand wells. Theoretically, the screw can transport amounted to 80% of mortar sand,hydraulic piston pump , sand down in crude oil amounted to 40% of the cases may be normal production (except sand buried situation).

(2) adaptation does not happen with high gas screw air lock, and therefore more suitable for mixed transportation of oil and gas,submersible fuel pump but the downhole pump inlet of free gas will affect the volumetric efficiency.

(3) suitable for offshore oilfield cluster wells and horizontal wells group. PCP can be under the slant hole section,gear type pump and small equipment footprint, making it suitable for offshore oil.


2015年4月17日星期五

Effect of gear pump performance parameters gear machining tolerances for micro external gear


Parker hydraulic lifting mechanism is set to introduce the technology in the United States Pike domestic manufacturing,gas transfer pump assembling small hydraulic power systems. The heart of the system and the power source is the micro external gear pumps, its speed up to 3700 Rpm, instantaneous working pressure up to 35 MPa, which addendum circle diameter gear of only 14 mm, but it is also affected by the passing rate system One of the important parts.

Currently, this system is the company's qualified domestic Parker was about 75%.
Through experimental study found that the pump performance is not the main reason for compliance With the Traffic Load When Lifting Mechanism for this indicator. This article is the impact parameter tolerances of micro external gear pumps for the study of the flow from the external gear pump works, combining theoretical research and experimental verification,fuel card management system the mathematical model of miniature external gear pump flow, integrated use orthogonal experimental design, computer simulation and genetic algorithms, quantitative research to solve real business problems will start to analyze the impact of micro external gear pump gear pump performance tolerance parameters, and gives the optimum parameters of gear machining tolerances.

For enterprises to improve product pass rate laid the theoretical and experimental basis,mechanical fuel level gauge to improve the economic efficiency of enterprises, production and development of large quantities of new products have a certain significance.


2015年4月14日星期二

Vacuum pumps and pumping equipment


Vacuum petrochemical knowledge refers to the use of mechanical, physical, chemical,gear type pump or physical and chemical methods have been drawn for container extraction and vacuum devices or equipment to obtain. The vacuum pump is in a closed space with a variety of improved methods of generating and maintaining the vacuum apparatus. By vacuum pump works, pumps can be divided into two types, namely gas pumps and gas transmission pump trap.

 It is widely used in metallurgy, chemical industry, food, electronics and other industries coating.Censtar gas transfer pump ,external gear pump,hydraulic piston pump


2015年4月11日星期六

Momentum transfer pump



Rely blades rotating at high speed or high-speed jet, the momentum transfer to the gas or gas molecules,gas transfer pump , so that continuously transferred from the gas inlet to the pump outlet. Such pumps can be divided into the following form,

 Molecular pump
It is the use of high-speed rotation of the rotor to transfer momentum to the gas molecules, and thus obtain the orientation speed,automated fuel management system , so as to be compressed, is driven towards the exhaust port of the preceding stage is drawn away after a vacuum pump. This pump concrete can be divided into,

1) traction molecular pump and high-speed movement of gas molecules collide and get momentum rotor is driven to the pump outlet.

2) turbo molecular pump by high-speed rotation of the rotor blades and the stationary blade with each other to achieve a given pumping. Such pumps are typically operate at the molecular flow state.fuel dispensing pump

3) It is composed of complex molecular pump turbo molecular pump and traction type two series combination of a complex type of molecular pump.


2015年4月7日星期二

Can ordinary centrifugal transfer gas ?



Centrifugal impeller is rotated and the water use of centrifugal movement to occur work. Before starting the pump,gas transfer pump must be filled with water suction pump casing and the inner tube, and then start the motor, so that the shaft drives the impeller and water to make high-speed rotation, centrifugal movement of water occurs, thrown to the outer edge of the impeller,hydraulic piston pump the volute casing pump flow Road inflow pump pressure water line.

The basic structure of the centrifugal pump is composed of six parts,respectively impellers, pump, pump shaft, bearings, seal rings, stuffing box. So ordinary centrifugal pump can transport gas it? The answer is no. This is because as ordinary centrifugal blade is thick airfoil does not apply to transport gas.

The direction of rotation is not right,submersible fuel pump tightness worse, can not for the transmission of gas. Leaves transporting gas is generally thin and narrow, curved and twisted airfoil.


2015年3月30日星期一

The suction pressure of hydraulic piston pump


At present, hydraulic piston pump oil pumping process has been batch application. Downhole pressure measurement more difficult. In order to meet the analysis of oil well production and oil field development management requirements, hydraulic piston pump ,this paper proposes to use the calculation method to obtain the bottomhole pressure data, and introduces how to determine the accuracy of the related parameters calculation, and in order to improve the calculation formula.

   From the list a few export pump suction pressure data visible, the measured and calculated
values of absolute errors, automated fuel management system the vast majority are + 0.2MPa or so, prove it is feasible and
reliable calculation method.

2015年3月27日星期五

Development and application of concentric tube column closed hydraulic piston pump


With the rise of water cut in the formation, hydraulic piston pump the existing open type hydraulic pump gradually exposed to high power fluid disposal cost, imprecise measurement of produced fluid and short service life of downhole pump and so on.

The newly developed 50mm concentric tube column closed hydraulic piston pump, using double
concentric tube column structure,  external gear pump ,lack motive fluid into the downhole driving close type pumps from inner tubing, lack motive liquid returns to the ground from the annular space between the inner tubing and outer tubing after repeated use.

Because lack motive liquid is not mixed and produced fluid, no need to process it. The experiment and application results show, fuel card management system various technical indicators have reached the design requirements of the pump. The closed pump power fluid costs about open pump 38%, the pump inspection period is 3.6 times the pump.