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.

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.

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.

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?

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 ~ ~ ~

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.

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.

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.

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

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.

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.