A testing device for high-pressure emulsion pump

Abstract

The application discloses a kind of test devices for high-pressure emulsion pump, it is related to high-pressure pump test technical field, wherein including vertical pump test table, vertical pump test table and horizontal pump test table include test base, hollow shaft encoder is installed on the drive variable frequency motor drive shaft, then again with dynamic torque sensor is connected, test support connects drive variable frequency motor and the pump to be tested, hollow shaft encoder is used to measure the output speed of drive variable frequency motor, dynamic torque sensor is used to measure the output torque of drive variable frequency motor.The application is integrated into several devices by system integration to test device, test device has pressure regulation and detection, flow regulation and detection, temperature regulation and detection, speed regulation and detection, torque detection, remote start and stop and data acquisition and record, solve the problem that due to pump equipment size specification is various, test pump data acquisition is inconvenient, eliminate possible safety hazard when test pump is abnormal.

Description

Technical Field

[0001] This invention relates to the field of high-pressure pump testing technology, and in particular to a testing device for a high-pressure emulsion pump. Background Technology

[0002] After the high-pressure emulsion pump is manufactured, its performance needs to be tested. The testing equipment measures and records the input voltage, output current, output torque, and output speed of the drive motor. The test bench can meet the testing requirements of pumps of different specifications and models. The test skid can filter and control the temperature of the medium sucked into the high-pressure emulsion pump, monitor the flow rate, control the pressure, stabilize the pressure and prevent shock, and perform fine filtration on the return oil tank.

[0003] Existing technologies for testing high-pressure emulsion pumps suffer from limitations due to the low lubricity of the tested emulsion medium, its susceptibility to rust and corrosion, the inapplicability of conventional control valves, unstable flow and pressure control, and the lack of a high-pressure emulsion pump testing device.

[0004] Therefore, in order to solve such problems, we propose a high-pressure emulsion pump testing device. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a testing device for high-pressure emulsion pumps. The aim is to solve the problems mentioned above, where the tested medium, emulsion, has low lubricity, is prone to rust and corrosion, conventional control valves are unsuitable, flow and pressure control is unstable, and high-pressure emulsion pumps are prone to sudden situations such as pump jamming, overpressure, and leakage during performance testing. Furthermore, the testing device needs to consider a cumbersome and complex design, and the pump's operating status and data need to be monitored in real time during operation. Currently, there is a lack of suitable high-pressure emulsion pump testing devices on the market.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A testing device for a high-pressure emulsion pump, comprising:

[0010] Vertical pump test bench, horizontal pump test bench, water chiller, test skid, data acquisition and control cabinet.

[0011] The vertical and horizontal pump test benches include a test base, a drive variable frequency motor, a test bracket, a dynamic torque sensor, a hollow shaft encoder, and the pump under test. The hollow shaft encoder is mounted on the drive variable frequency motor's transmission shaft and then connected to the dynamic torque sensor. The test bracket connects the drive variable frequency motor and the pump under test. The hollow shaft encoder is used to measure the output speed of the drive variable frequency motor, and the dynamic torque sensor is used to measure the output torque of the drive variable frequency motor.

[0012] Preferably, the body of the test skid is a test water tank, with oil suction filters located on both sides of the test water tank. The outlet of the oil suction filter is connected to one end of the inlet hose, which can be quickly connected to the suction port of the pump under test when testing is required. The outlet of the pump under test is connected to the filter pressure stabilizing valve block through the outlet high-pressure hose. The filter pressure stabilizing valve block is connected to the pressure protection valve block through a rigid pipe. The pressure protection valve block is equipped with a pressure measuring interface, which is connected to a shock-resistant pressure gauge and a pressure transmitter through a pressure tap. The pressure protection valve block is diverted through a three-way coaxial valve.

[0013] Preferably, one path passes through a coaxial proportional regulating valve, and the other path passes through a bypass pipeline to meet the requirements of pressurized and zero-pressure tests of the pump under test. The diverted pipeline then passes through a three-way ball valve to merge and then split again, with one path passing through the return oil filter chamber of an electromagnetic flowmeter and the other path passing through the bypass return oil filter chamber to meet the requirements of measuring or not measuring the flow rate during pressurized and zero-pressure tests of the pump under test.

[0014] Preferably, the return oil filtration chamber is equipped with a bag filter to filter the emulsion after testing and return it to the test water tank. The electric heaters are evenly distributed at multiple points at the bottom of the test water tank, and the temperature transmitter is placed in the middle of the water tank. When the temperature transmitter detects that the water tank temperature is lower than the test requirement, the electric heater starts and stops heating when the specified temperature is reached. The level transmitter is placed at the top of the test water tank to detect changes in the test water tank level in real time. When the test water tank level is lower than the low level, an alarm signal is issued. When the level is lower than the low level, the data acquisition control cabinet controls the test pump to stop urgently. The protective cover is a detachable type, which covers the high-pressure and easily leaking parts inside the protective cover to avoid the danger of high-pressure emulsion leakage.

[0015] Preferably, the filter pressure regulating valve block includes an integrated valve block, an accumulator, and a filter. The accumulator stabilizes the flow and pressure of the emulsion passing through the pressure regulating valve block, ensuring that the pressure changes slowly during pressurized start-up and emergency stop of the pump under test, reducing the impact on the test skid. The filter removes impurities caused by wear and other factors of the pump under test, protecting downstream pressure transmitters, pressure protection valve blocks, three-way coaxial valves, coaxial proportional regulating valves, three-way ball valves, and electromagnetic flowmeter components.

[0016] Preferably, the pressure protection valve block includes an integrated valve block two high-pressure relief valve, a medium-pressure relief valve, a solenoid relief valve, a switching valve, and a safety valve. The pressure protection valve block divides the protection pressure of the pump under test into high-pressure protection and medium-pressure protection, which can be manually switched by the switching valve to meet the high-pressure test and medium-low pressure test requirements of the pump under test.

[0017] Preferably, the electromagnetic relief valve and the pressure transmitter form a closed-loop control to ensure accurate and rapid pressure protection. Since the safety valve has no requirements on the cleanliness of the measured medium, it is provided to ensure final protection after the failure of the high-pressure relief valve, medium-pressure relief valve and electromagnetic relief valve.

[0018] Preferably, the water chiller and temperature transmitter are PID controlled. When the temperature of the medium in the test water tank is higher than the set value, the water chiller starts to circulate and cool the medium in the test water tank until the temperature in the test water tank is lower than the set value.

[0019] Preferably, the pressure transmitter and the coaxial proportional control valve form a PID closed-loop control. The coaxial proportional control valve will adjust synchronously according to the real-time value collected by the pressure transmitter to ensure that the pressure is stable at the set value.

[0020] Preferably, the electromagnetic flowmeter and the drive variable frequency motor form a PID closed-loop regulation, and the drive variable frequency motor will adjust synchronously according to the real-time value collected by the electromagnetic flowmeter to ensure that the flow rate is stable at the set value.

[0021] (III) Beneficial Effects

[0022] In use, a testing device for high-pressure emulsion pumps is provided to address the issues raised in the background art, such as the low lubricity and susceptibility to rust and corrosion of the tested emulsion medium, the inapplicability of conventional control valves, unstable flow and pressure control, and the susceptibility to sudden situations like pump jamming, overpressure, and leakage during performance testing of high-pressure emulsion pumps. The testing device requires a cumbersome and complex design, and real-time monitoring of the pump's operating status and data is necessary during operation. Currently, there is a lack of suitable testing devices for high-pressure emulsion pumps on the market.

[0023] By integrating the testing device into several devices through system integration, the performance testing of pumps with different specifications, flow rates, and pressures can be completed. The testing device has pressure regulation and detection, flow regulation and detection, temperature regulation and detection, speed regulation and detection, torque detection, remote start / stop, and data acquisition and recording. It solves the problems of inconvenient data acquisition for testing pumps due to the diverse size and specifications of pump equipment, and the elimination of potential safety hazards when testing pumps malfunction. Attached Figure Description

[0024] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is a three-dimensional schematic diagram of a testing device for a high-pressure emulsion pump according to the present invention. Figure 1 ;

[0026] Figure 2 This is a three-dimensional schematic diagram of a testing device for a high-pressure emulsion pump according to the present invention. Figure 2 ;

[0027] Figure 3 This is a three-dimensional schematic diagram of the test water tank in a test device for a high-pressure emulsion pump according to the present invention;

[0028] Figure 4 This is a three-dimensional schematic diagram of the vertical test stand and the horizontal test stand in the testing device for a high-pressure emulsion pump of the present invention.

[0029] Figure 5 This is a three-dimensional schematic diagram of the filter pressure regulating valve block in a test device for a high-pressure emulsion pump according to the present invention.

[0030] Figure 6 This is a three-dimensional schematic diagram of the pressure protection valve block in a testing device for a high-pressure emulsion pump according to the present invention.

[0031] Legend:

[0032] 1. Vertical pump test bench; 11. Test base; 12. Drive variable frequency motor; 13. Connecting bracket; 14. Encoder for hollow shaft; 15. Torque sensor; 16. Pump under test; 2. Horizontal pump test bench; 3. Water chiller;

[0033] 4. Test skid; 41. Test water tank; 42. Oil suction filter; 43. Inlet hose; 44. Outlet high-pressure hose; 45. Filter pressure regulating valve block; 451. Integrated valve block one; 452. Accumulator; 453. Filter; 46. Shock-resistant pressure gauge; 47. Pressure transmitter;

[0034] 48. Pressure protection valve block; 481. Integrated valve block two; 482. High-pressure relief valve; 483. Medium-pressure relief valve; 484. Solenoid relief valve; 485. Switching valve; 486. Safety valve; 49. Three-way coaxial valve;

[0035] 5. Data acquisition and control cabinet; 50. Coaxial proportional regulating valve; 51. Three-way ball valve; 52. Electromagnetic flow meter; 53. Bag filter; 54. Electric heater; 55. Temperature transmitter; 56. Level transmitter; 57. Protective cover. Detailed Implementation

[0036] This application provides a testing device for high-pressure emulsion pumps, aiming to solve the problems in the background art where the tested medium, emulsion, has low lubricity, is prone to rust and corrosion, conventional control valves are unsuitable, flow and pressure control is unstable, the testing device needs to consider a cumbersome and complex design, and the pump's operating status and data need to be monitored in real time during operation. Currently, there is a lack of suitable high-pressure emulsion pump testing devices on the market.

[0037] Example 1

[0038] like Figure 1-3 As shown, the technical solution in this application embodiment is to solve the problem that conventional control valves are not suitable because the emulsion of the tested medium has low lubricity, is prone to rust and corrosion. The overall idea is as follows:

[0039] To address the problems existing in the prior art, the present invention provides a testing device for a high-pressure emulsion pump, comprising:

[0040] Vertical pump test bench 1, horizontal pump test bench 2, water chiller 3, test skid 4, data acquisition and control cabinet 5

[0041] like Figure 4 As shown, the vertical pump test bench 1 and the horizontal pump test bench 2 include a test base 11, a drive variable frequency motor 12, a test bracket 13, a dynamic torque sensor 14, a hollow shaft encoder 15, and a pump under test 16. The hollow shaft encoder 15 is mounted on the drive variable frequency motor 12 and then connected to the dynamic torque sensor 14. The test bracket 13 connects the drive variable frequency motor 12 and the pump under test 16. The hollow shaft encoder 15 is used to measure the output speed of the drive variable frequency motor 12, and the dynamic torque sensor 14 is used to measure the output torque of the drive variable frequency motor 12.

[0042] like Figure 3 As shown, the test water tank 41 serves as the body of the test skid 4. The oil suction filter 42 is located on both sides of the test water tank 41. The outlet of the oil suction filter 42 is connected to one end of the inlet hose 43, allowing for quick connection to the suction port of the pump under test 16 during testing. The outlet of the pump under test 16 is connected to the filter pressure regulating valve block 45 via the outlet high-pressure hose 44. The filter pressure regulating valve block 45 is connected to the pressure protection valve block 48 via a rigid pipe. The pressure protection valve block 48 is equipped with a pressure measuring interface, connected to a shock-resistant pressure gauge 46 and a pressure transmitter 57 via a pressure tap. The pressure protection valve block 48 is diverted via a three-way coaxial valve 49.

[0043] One flow path passes through the coaxial proportional regulating valve 50, and the other through a bypass pipeline, meeting the requirements of pressurized and zero-pressure tests of the tested pump 16. The diverted pipeline then passes through a three-way ball valve 51 for convergence and further diversion. One path returns to the oil filter chamber via the electromagnetic flowmeter 52, and the other passes through the bypass oil filter chamber, meeting the requirements for both pressurized and zero-pressure flow measurement of the tested pump 16. The oil filter chamber is equipped with a bag filter 53 to filter the emulsion after testing before returning it to the test water tank 41. Electric heaters 54 are evenly distributed at multiple points at the bottom of the test water tank 41, providing temperature control. Temperature transmitter 55 is placed in the middle of the water tank. When the temperature transmitter 55 detects that the water tank temperature is lower than the test requirement, the electric heater starts and stops heating when the specified temperature is reached. Level transmitter 56 is placed on top of test water tank 41 to detect the change in water level in test water tank 41 in real time. When the water level in test water tank 41 is lower than the low level, an alarm signal is issued. When the water level is lower than the low level, the data acquisition control cabinet 5 controls the test pump to stop urgently. The protective cover 57 is a detachable type, which covers the high-pressure and easily leaking parts inside the protective cover 57 to avoid the danger of high-pressure emulsion leakage.

[0044] like Figure 5 As shown, the filter pressure regulating valve block 45 includes an integrated valve block 451, an accumulator 452, and a filter 453. The accumulator 452 stabilizes the flow and pressure of the emulsion passing through the pressure regulating valve block 45, ensuring that the pressure changes slowly when the tested pump 16 starts under pressure and stops suddenly, reducing the impact on the test skid 4. The filter 453 filters out impurities caused by wear and other reasons of the tested pump 16, protecting downstream components such as the pressure transmitter 57, pressure protection valve block 48, three-way coaxial valve 49, coaxial proportional regulating valve 50, three-way ball valve 51, and electromagnetic flow meter 52.

[0045] like Figure 6 As shown, the pressure protection valve block 48 includes an integrated valve block 481, a high-pressure relief valve 482, a medium-pressure relief valve 483, a solenoid relief valve 484, a switching valve 485, and a safety valve 486. The pressure protection valve block 48 divides the protection pressure of the pump under test 16 into high-pressure protection and medium-pressure protection. The switching valve 485 can be manually switched to meet the high-pressure test and medium-low pressure test requirements of the pump under test 16. The solenoid relief valve 484 forms a lock-in control with the pressure transmitter 57 to ensure accurate and rapid pressure protection. Since the cleanliness of the tested medium is not required, the safety valve 486 is set to ensure the final protection after the failure of the high-pressure relief valve 482, the medium-pressure relief valve 483, and the solenoid relief valve 484.

[0046] The water chiller 3 and the temperature transmitter 55 are PID controlled. When the temperature of the medium in the test water tank 41 is higher than the set value, the water chiller starts and circulates to cool the medium in the test water tank 41 until the temperature in the test water tank 41 is lower than the set value.

[0047] The pressure transmitter 57 and the coaxial proportional control valve 50 form a PID closed-loop control. The coaxial proportional control valve 50 will adjust synchronously according to the real-time value collected by the pressure transmitter 57 to ensure that the pressure is stable at the set value. The electromagnetic flowmeter 52 and the drive variable frequency motor 12 form a PID closed-loop control. The drive variable frequency motor 12 will adjust synchronously according to the real-time value collected by the electromagnetic flowmeter 52 to ensure that the flow rate is stable at the set value.

[0048] In use, a testing device for high-pressure emulsion pumps is provided to address the issues raised in the background art, such as the low lubricity and susceptibility to rust and corrosion of the tested emulsion medium, the inapplicability of conventional control valves, unstable flow and pressure control, and the susceptibility to sudden situations like pump jamming, overpressure, and leakage during performance testing of high-pressure emulsion pumps. The testing device requires a cumbersome and complex design, and real-time monitoring of the pump's operating status and data is necessary during operation. Currently, there is a lack of suitable testing devices for high-pressure emulsion pumps on the market.

[0049] By integrating the testing device into several devices through system integration, the performance testing of pumps with different specifications, flow rates, and pressures can be completed. The testing device has pressure regulation and detection, flow regulation and detection, temperature regulation and detection, speed regulation and detection, torque detection, remote start / stop, and data acquisition and recording. It solves the problems of inconvenient data acquisition for testing pumps due to the diverse size and specifications of pump equipment, and the elimination of potential safety hazards when testing pumps malfunction.

[0050] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A testing device for a high-pressure emulsion pump, characterized in that: Includes a vertical pump test bench (1), a horizontal pump test bench (2), a water chiller (3), a test skid (4), and a data acquisition and control cabinet (5). The vertical pump test bench (1) and the horizontal pump test bench (2) include a test base (11), a drive variable frequency motor (12), a test bracket (13), a dynamic torque sensor (14), a hollow shaft encoder (15), and a pump under test (16). The hollow shaft encoder (15) is mounted on the drive shaft of the drive variable frequency motor (12) and then connected to the dynamic torque sensor (14). The test bracket (13) connects the drive variable frequency motor (12) and the pump under test (16). The hollow shaft encoder (15) is used to measure the output speed of the drive variable frequency motor (12), and the dynamic torque sensor (14) is used to measure the output torque of the drive variable frequency motor (12).

2. The testing device for a high-pressure emulsion pump as described in claim 1, characterized in that: The body of the test skid (4) is the test water tank (41). The oil suction filter (42) is located on both sides of the test water tank (41). The outlet of the oil suction filter (42) is connected to one end of the inlet hose (43). When testing is required, it is quickly connected to the suction port of the pump under test (16). The outlet of the pump under test (16) is connected to the filter pressure regulating valve block (45) through the outlet high pressure hose (44). The filter pressure regulating valve block (45) is connected to the pressure protection valve block (48) through the hard pipe. The pressure protection valve block (48) is equipped with a pressure measuring interface. It is connected to the shock-resistant pressure gauge (46) and pressure transmitter (57) through the pressure tapping pipe. The pressure protection valve block (48) is diverted through the three-way coaxial valve (49).

3. The testing device for a high-pressure emulsion pump as described in claim 2, characterized in that: One path passes through a coaxial proportional regulating valve (50), and the other path passes through a bypass pipeline, satisfying the requirements of the tested pump (16) for both pressurized and zero-pressure testing. The diverted pipeline then passes through a three-way ball valve (51) to merge and then split again. One path passes through an electromagnetic flowmeter (52) to return to the oil filter chamber, and the other path passes through a bypass oil filter chamber, satisfying the requirements of measuring and not measuring the flow rate of the tested pump (16) during pressurized and zero-pressure testing.

4. The testing device for a high-pressure emulsion pump as described in claim 3, characterized in that: The return oil filtration chamber is equipped with a bag filter (53) to filter the emulsion after testing and return it to the test water tank (41). The electric heater (54) is evenly arranged at multiple points at the bottom of the test water tank (41). The temperature transmitter (55) is placed in the middle of the water tank. When the temperature transmitter (55) detects that the water tank temperature is lower than the test requirement, the electric heater starts and stops heating when the specified temperature is reached. The liquid level transmitter (56) is placed on the top of the test water tank (41) to detect the liquid level change of the test water tank (41) in real time. When the liquid level of the test water tank (41) is lower than the low liquid level, an alarm signal is issued. When the liquid level is lower than the low liquid level, the data acquisition control cabinet (5) controls the test pump to stop urgently. The protective cover (57) is a detachable type, which covers the high pressure and easily leaking parts inside the protective cover (57).

5. The testing device for a high-pressure emulsion pump as described in claim 4, characterized in that: The filter pressure regulating valve block (45) includes an integrated valve block (451), an accumulator (452), a filter (453), and the accumulator (452) stabilizes the flow and pressure of the emulsion passing through the pressure regulating valve block (45) and protects the downstream pressure transmitter (57), pressure protection valve block (48), three-way coaxial valve (49), coaxial proportional regulating valve (50), three-way ball valve (51), and electromagnetic flow meter (52).

6. The testing device for a high-pressure emulsion pump as described in claim 5, characterized in that: The pressure protection valve block (48) includes an integrated valve block two (481), a high-pressure relief valve (482), a medium-pressure relief valve (483), a solenoid relief valve (484), a switching valve (485), and a safety valve (486). The pressure protection valve block (48) divides the protection pressure of the pump under test (16) into high-pressure protection and medium-pressure protection. The switching valve (485) can be manually switched to meet the high-pressure test and medium-low pressure test requirements of the pump under test (16).

7. The testing device for a high-pressure emulsion pump as described in claim 6, characterized in that: The electromagnetic relief valve (484) forms a lock-in control with the pressure transmitter (57) to ensure accurate and rapid pressure protection. The safety valve (486) has no requirements for the cleanliness of the measured medium. The safety valve (486) ensures the final protection after the failure of the high pressure relief valve (482), the medium pressure relief valve (483) and the electromagnetic relief valve (484).

8. The testing device for a high-pressure emulsion pump as described in claim 4, characterized in that: The water chiller (3) and temperature transmitter (55) are PID controlled. When the temperature of the medium in the test water tank (41) is higher than the set value, the water chiller is started to circulate and cool the medium in the test water tank (41) until the temperature in the test water tank (41) is lower than the set value.

9. The testing device for a high-pressure emulsion pump as described in claim 7, characterized in that: The pressure transmitter (57) and the coaxial proportional control valve (50) form a PID closed-loop control, and the coaxial proportional control valve (50) will adjust synchronously according to the real-time value collected by the pressure transmitter (57).

10. The testing device for a high-pressure emulsion pump as described in claim 3, characterized in that: The electromagnetic flowmeter (52) and the drive variable frequency motor (12) form a PID closed-loop regulation, and the drive variable frequency motor (12) will adjust synchronously according to the real-time value collected by the electromagnetic flowmeter (52).

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