A mobile oil well pump comprehensive performance test bench

Abstract

The present invention provides a mobile oil pump comprehensive performance test bench, wherein the auxiliary oil tank is connected with the refueling pump, the oil filling filter and the main oil tank, the oil suction filter is connected with the electric pressure test pump, the high-pressure filter, the electronically controlled proportional regulating valve, the oil return filter and the main oil tank, the main oil tank is connected with the electric unloading valve, the stop valve and the sensor, and the sensor is connected with the oil pump to be tested through a single-phase quick plug; the advantages are: the present invention uses the advanced distributed computer monitoring system through automation technology, the system runs stably, reliably and has strong expansibility, realizes automatic detection and control of each link, automatically prints various reports, etc., reduces labor intensity, reduces energy and material consumption, and reduces production costs; by improving the centralized and friendly human-machine interface monitoring system, the mobile oil pump comprehensive performance test bench regularly detects the comprehensive performance of the pump, improves the pump efficiency of the oil pump, and improves the efficiency of the oil pumping unit.

Description

Technical Field

[0001] The invention relates to the field of measuring tools, in particular to a mobile oil well pump comprehensive performance test bench. Background Art

[0002] With the increase in national oilfield development projects, more and more oil well pumps are being installed on pumping units across the country. Numerous factors influence oil well pump efficiency, but leakage is a crucial factor. The gap between the piston and bushing, as well as leakage between valves and other connecting components, can reduce actual displacement. As long as the pump's manufacturing and assembly quality are maintained, leakage will have minimal impact for a period of time after installation. However, when the fluid is corrosive or contains sand, leakage can rapidly increase due to corrosion and wear on the pump. Wax and sand deposits within the pump can cause valves to close loosely, or even cause them to become stuck, seriously disrupting pump operation. In these situations, in addition to improving the pump's structure and enhancing its corrosion resistance, sand and wax control measures and regular pump inspections are crucial to maintaining proper operation. Summary of the Invention

[0003] The purpose of the present invention is to provide a mobile oil well pump comprehensive performance test bench to solve the deficiencies of the prior art.

[0004] The new technical solution of the present invention is: a mobile oil pump comprehensive performance test bench, including a box body, an operating table, a main oil tank, an auxiliary oil tank, a refueling pump, an oil filling filter, an oil suction filter, an oil return filter, a sensor, a shut-off valve, an electric unloading valve, an electronically controlled proportional pressure regulating valve, a high-pressure filter and an electric pressure test pump, a top cover is installed on the top of the box body, an upper side plate is installed on the upper front side of the box body, and a lower box door is installed on the lower front side of the box body; a guardrail is welded on the top left side of the box body, and a left box door is installed on the left side of the box body; a guardrail is welded on the top right side of the box body, a drawer is provided on the upper right side of the box body, and a right box door is installed on the lower right side of the box body; a guardrail is welded on the top rear side of the box body, and an operating table is connected to the rear side of the box body, and an intelligent control system, a human-computer interaction interface and a wireless controller are arranged in the operating table; a universal wheel is installed at the bottom of the box body; a main oil tank, Auxiliary fuel tank, refueling pump, oil filling filter, oil suction filter, return oil filter, sensor, stop valve, electric unloading valve, electronically controlled proportional pressure regulating valve, high-pressure filter and electric pressure test pump. The auxiliary fuel tank is connected to the refueling pump through a pipeline, the refueling pump is connected to the oil filling filter through a pipeline, the oil filling filter is connected to the main fuel tank, the main fuel tank is provided with an oil suction filter, the oil suction filter is connected to the electric pressure test pump through a hose, the electric pressure test pump is connected to the high-pressure filter through a stainless steel pipe, the high-pressure filter is connected to the electronically controlled proportional regulating valve through a stainless steel pipe, the electronically controlled proportional regulating valve is connected to the return oil filter through a stainless steel pipe, the return oil filter is connected to the main fuel tank, the main fuel tank is connected to the electric unloading valve, stop valve and sensor through a stainless steel pipe, the sensor is connected to a single-phase quick plug, and the single-phase quick plug is connected to the oil pump to be tested through a hose.

[0005] A liquid level gauge is installed on the main oil tank.

[0006] A liquid level gauge is installed on the auxiliary oil tank.

[0007] The wireless controller is connected to the wireless metering scale via wireless signals.

[0008] The sensor is a pressure sensor.

[0009] The pipeline is a galvanized steel pipe.

[0010] The stop valve is an electric stop valve.

[0011] There are four universal wheels.

[0012] The beneficial effects of the present invention are as follows: the present invention applies an advanced distributed computer monitoring system through automation technology, the system runs stably, reliably and has strong scalability, realizes automatic detection and control of each link, automatically prints various reports, etc., reduces labor intensity, reduces energy and material consumption, and reduces production costs; by improving the centralized and friendly human-machine interface monitoring system, the mobile oil pump comprehensive performance test bench regularly detects the comprehensive performance of the pump, improves the pump efficiency of the oil pump, and improves the efficiency of the oil pumping unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0015] Among them: 1. Upper side panel, 2. Sensor, 3. Stop valve, 4. Single-phase quick plug, 5. Electric unloading valve, 6. High-pressure filter, 7. Universal wheel, 8. Right box door, 9. Operating table, 10. Guardrail, 11. Drawer, 12. Top cover, 13. Fueling pump, 14. Oil filling filter, 15. Oil suction filter, 16. Return oil filter, 17. Electronically controlled proportional pressure regulating valve, 18. Electric pressure test pump. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] A mobile oil pump comprehensive performance test bench, including a box, an operating table 9, a main oil tank, a subsidiary oil tank, a refueling pump 13, an oil filling filter 14, an oil suction filter 15, an oil return filter 16, a sensor 2, a stop valve 3, an electric unloading valve 5, an electric proportional pressure regulating valve 17, a high-pressure filter 6 and an electric pressure test pump 18. The top of the box is equipped with a top cover 12, the upper front side of the box is equipped with an upper side plate 1, and the lower front side of the box is equipped with a lower box door; the top left side of the box is welded with a guardrail. 10, a left door is installed on the left side of the box; a guardrail 10 is welded on the top right side of the box, a drawer 11 is provided on the upper right side of the box, and a right door 8 is installed on the lower right side of the box; a guardrail 10 is welded on the top back side of the box, and an operating table 9 is connected to the back side of the box, and an intelligent control system, a human-computer interaction interface and a wireless controller are installed on the operating table 9; a universal wheel 7 is installed on the bottom of the box; a main fuel tank, a secondary fuel tank, a refueling pump 13, an oil filling pump 14 are installed inside the box. Filter 14, oil suction filter 15, return oil filter 16, sensor 2, stop valve 3, electric unloading valve 5, electronically controlled proportional pressure regulating valve 17, high-pressure filter 6 and electric pressure test pump 18. The auxiliary fuel tank is connected to the refueling pump 13 through a pipeline. The refueling pump 13 is connected to the oil filling filter 14 through a pipeline. The oil filling filter 14 is connected to the main fuel tank. The main fuel tank is provided with an oil suction filter 15. The oil suction filter 15 is connected to the electric pressure test pump 18 through a hose. The electric pressure test pump 18 is connected to the high-pressure filter 6 through a stainless steel pipe. The high-pressure filter 6 is connected to the electronically controlled proportional regulating valve through a stainless steel pipe. The electronically controlled proportional regulating valve is connected to the return oil filter 16 through a stainless steel pipe. The return oil filter 16 is connected to the main fuel tank. The main fuel tank is connected to the electric unloading valve 5, stop valve 3 and sensor 2 through a stainless steel pipe. The sensor 2 is connected to a single-phase quick plug 4, and the single-phase quick plug 4 is connected to the oil pump to be tested through a hose.

[0018] A liquid level gauge is installed on the main oil tank.

[0019] A liquid level gauge is installed on the auxiliary oil tank.

[0020] The wireless controller is connected to the wireless metering scale via wireless signals.

[0021] The sensor 2 is a pressure sensor.

[0022] The pipeline is a galvanized steel pipe.

[0023] The stop valve 3 is an electric stop valve.

[0024] There are four universal wheels 7.

[0025] The mobile oil well pump comprehensive performance test bench is designed to test the pump's sealing and leakage. The system interacts with the operator through a human-machine interface, allowing them to input test parameters and output test curves, reports, and other data. This data can then be exported via the network and a USB flash drive. The intelligent control system connects to a wireless controller via an RS485 interface. The wireless controller reads data from a wireless scale and automatically measures leakage. The intelligent control system also connects to a pressure sensor to collect real-time pressure readings from the system. The intelligent control system also connects to an electronically controlled proportional pressure regulating valve, automatically adjusting the system using a PID algorithm based on the pressure setpoint sent by the intelligent control system. The intelligent control system also connects to electric shut-off valves, electric pressure test pumps, and other components to control the start, stop, or opening of the corresponding equipment.

[0026] The specific process is to connect water and electricity, connect instrument pipelines, start the control system, set pressure test parameters and test mode, test workpiece exhaust, start the automatic test program, test workpiece pressure increase, test workpiece pressure maintenance, test workpiece pressure relief, generate test report, and print the report. There are two test modes, and their specific processes are:

[0027] a) Sealing Performance Test: Close the electric unloading valve → Open the electric stop valve → Adjust the opening of the electric proportional pressure regulating valve to the initial position → Start the electric pressure test pump → Reduce the opening of the electric proportional pressure regulating valve → Automatically increase the pressure of the system → Reach the set target pressure of 32 MPa → Close the electric stop valve → Stop the electric pressure test pump → Maintain pressure → Expire the pressure holding time of 3 minutes → Open the electric stop valve → Open the electric unloading valve to release pressure → End the pressure holding period. A pressure drop of less than 0.5 MPa is considered acceptable.

[0028] b) Leakage Test: Close the electric unloading valve → Open the electric shut-off valve → Adjust the opening of the electric proportional pressure regulating valve to its initial setting → Start the electric pressure test pump → Reduce the opening of the electric proportional pressure regulating valve → Automatically increase the pressure → The pressure sensor reaches the set leakage test pressure of 10 MPa → The leakage stabilizes → Place a measuring cup to collect the leaked medium → Collection is complete → Open the electric unloading valve to release pressure → Pressure hold ends → Weigh on a wireless scale → Calculate the leakage → Test complete. Pressure hold time: 1 minute; pressure is maintained with an accuracy of ±1.5 MPa during the test. When the leakage flow rate at the end of the oil well pump stabilizes, begin collecting the leaked medium with a measuring cup for 1 minute. The oil well pump is considered acceptable if its leakage flow rate does not exceed 300 L / h. All components of the oil well pump must be stationary during the test. The leaked medium collected in the measuring cup is poured into the auxiliary fuel tank. By starting the refueling pump, the medium in the auxiliary tank is injected into the main tank through the oil filling filter in the main tank and then reused.

[0029] The mobile oil well pump comprehensive performance test bench integrates components such as a pressure test pump, sensors, an electronic balance, an industrial control unit, and an automatic control system within a housing. Using a computer and PLC for automatic control, it automatically measures relevant parameters such as the oil well pump's sealing performance and leakage, and generates test curves and reports according to standards. The system includes a reserved data interface, allowing test data to be stored locally or automatically uploaded to the factory-level local area network as required, allowing relevant departments to share test data. The pressure test pump, pressure transmitter, and various valve groups are all fixedly installed. To ensure test accuracy and reduce measurement errors caused by vibration, the electronic balance is placed separately, at a distance from the test site. The control system is entirely housed in a separate control cabinet, which houses the industrial control unit, PLC, power supply, and auxiliary components. A touch screen is mounted on top of the cabinet for easy operation by test personnel.

Claims

1. A mobile oil pump comprehensive performance test bench, comprising a box body, an operating table (9), a main oil tank, an auxiliary oil tank, a refueling pump (13), an oil injection filter (14), an oil suction filter (15), an oil return filter (16), a sensor (2), a stop valve (3), an electric unloading valve (5), an electric proportional pressure regulating valve (17), a high-pressure filter (6) and an electric pressure test pump (18), characterized in that: The top of the box is provided with a top cover (12), the upper front side of the box is provided with an upper side plate (1), and the lower front side of the box is provided with a lower box door; the top of the left side of the box is welded with a guardrail (10), and the left side of the box is provided with a left box door; the top of the right side of the box is welded with a guardrail (10), the upper right side of the box is provided with a drawer (11), and the lower right side of the box is provided with a right box door (8); the top of the rear side of the box is welded with a guardrail (10), and the rear side of the box is connected with an operating table (9), wherein an intelligent control system, a human-computer interaction interface and a wireless controller are provided in the operating table (9); the bottom of the box is provided with a universal wheel (7); the inside of the box is provided with a main oil tank, an auxiliary oil tank, a refueling pump (13), an oil filling filter (14), an oil suction filter (15), an oil return filter (16), a sensor (2), a stop valve (3), an electric unloading valve (5), an electric proportional pressure regulating valve (17), a high pressure filter ( 6) and an electric pressure test pump (18), the auxiliary oil tank is connected to the refueling pump (13) through a pipeline, the refueling pump (13) is connected to the oil filling filter (14) through a pipeline, the oil filling filter (14) is connected to the main oil tank, the main oil tank is provided with an oil suction filter (15), the oil suction filter (15) is connected to the electric pressure test pump (18) through a hose, the electric pressure test pump (18) is connected to a high-pressure filter (6) through a stainless steel pipe, the high-pressure filter (6) is connected to an electric-controlled proportional regulating valve through a stainless steel pipe, the electric-controlled proportional regulating valve is connected to an oil return filter (16) through a stainless steel pipe, the oil return filter (16) is connected to the main oil tank, the main oil tank is connected to an electric unloading valve (5), a stop valve (3) and a sensor (2) through a stainless steel pipe, the sensor (2) is connected to a single-phase quick plug (4), and the single-phase quick plug (4) is connected to an oil pump to be tested through a hose.

2. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: A liquid level gauge is installed on the main oil tank.

3. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: A liquid level gauge is installed on the auxiliary oil tank.

4. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: The wireless controller is connected with the wireless metering scale via wireless signals.

5. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: The sensor (2) is a pressure sensor.

6. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: The pipeline is a galvanized steel pipe.

7. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: The stop valve (3) is an electric stop valve.

8. The mobile oil well pump comprehensive performance test bench according to claim 1 is characterized by: There are four universal wheels (7).

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