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.

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.

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.

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.

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.

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.

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.

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?