Hydraulic profile control pump reversing performance test system

Abstract

The hydraulic profile control pump reversing performance test system comprises a piston motion outward transmission mechanism, a displacement sensor, a hydraulic control valve, a hydraulic control valve, a hydraulic control valve and a hydraulic control valve, and the piston motion outward transmission mechanism is used for transmitting the motion of a piston from a high-pressure working cavity to the displacement sensor; comprising a connecting rod, a connecting rod seal, a large cylinder cover and an assembly used for installing a displacement sensor. The piston position acquisition module is used for acquiring position parameters of a piston in real time; comprising a high-precision magnetostrictive displacement sensor. The working pressure data acquisition module is used for acquiring pressure change parameters in the high-pressure working cavity in real time; comprising a pressure transmitter; and the data processing and converting module is used for processing the collected working pressure parameters and the piston movement position parameters and displaying and storing the parameters in real time in a data curve mode.

Description

Technical field:

[0001] The invention relates to a reversing performance testing system for a hydraulic profile control pump. Background technology:

[0002] The hydraulic profile control pump is an important equipment for oilfield production industry's flooding, water injection, polymer injection, and sewage and sludge treatment. It can be widely used in many different application scenarios. In order to improve the overall performance of the hydraulic profile control pump, the performance of the hydraulic profile control pump needs to be tested.

[0003] The existing testing system can only test the functional parameters of the hydraulic profile control pump, such as system pressure, temperature, stroke frequency, outlet pressure, flow, etc., but cannot test the core components in the system and the reversing impact performance of the entire machine service life. Generally, judgment is made based on the experience of the staff, resulting in the accuracy and reliability of the test results not being guaranteed, and the performance of the hydraulic profile control pump cannot be accurately and quickly tested and judged. Summary of the invention:

[0004] An embodiment of the present invention provides a hydraulic profile control pump reversing performance test system, which has a reasonable structure and method design. Based on the mutual cooperation of multiple functional components, it can detect and record multiple types of data in the form of curves during the test operation of the hydraulic profile control pump, accurately test the reversing impact performance of the hydraulic profile control pump, and then comprehensively evaluate the performance of the hydraulic profile control pump, thereby ensuring the accuracy and efficiency of the test results, thereby providing effective data support for the optimized design of the hydraulic profile control pump and solving the problems existing in the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A hydraulic profile control pump reversing performance test system, the test system comprising:

[0007] A piston motion transmission mechanism, which is used to transmit the piston motion from the high-pressure working chamber to the displacement sensor; and includes a connecting rod, a connecting rod seal, a large cylinder head, and an assembly for mounting the displacement sensor;

[0008] A piston position acquisition module, which is used to acquire the position parameters of the piston in real time; it includes a high-precision magnetostrictive displacement sensor;

[0009] A working pressure data acquisition module, which is used to collect pressure change parameters in the high-pressure working chamber in real time; it includes a pressure transmitter;

[0010] The data processing and conversion module is used to process the collected working pressure parameters and piston movement position parameters, and display and store them in real time in the form of data curves.

[0011] One end of the connecting rod is tightly connected to the piston that performs linear reciprocating motion through a thread, and the other end extends outside the high-pressure working chamber and is connected to the magnetostrictive displacement sensor;

[0012] The connecting rod seal is fixed between the cylinder cover and the connecting rod to prevent the working fluid in the high-pressure chamber from leaking out.

[0013] The piston position acquisition module establishes a communication connection with the data processing and conversion module, and accurately transmits the collected piston direction parameters and piston real-time position parameters to the data processing and conversion module; the signal input end of the high-precision magnetostrictive displacement sensor is directly connected to the piston rod, and the signal output end of the high-precision magnetostrictive displacement sensor is directly electrically connected to the data processing and conversion module, so that the high-precision magnetostrictive displacement sensor can accurately detect the movement of the piston rod.

[0014] The working pressure data acquisition module establishes a communication connection with the data processing and conversion module, and transmits the pressure change data detected in the high-pressure working chamber to the data processing and conversion module; the signal input end of the pressure transmitter is connected to the inside of the high-pressure working chamber, and the signal output end of the pressure transmitter is connected to the data processing and conversion module through a communication line.

[0015] The data processing and conversion module includes a computer with a timer inside. The timer is used to provide time parameters and configure the collected working pressure parameters and piston movement position parameters to obtain two curves of pressure change and piston movement speed change.

[0016] The testing method of the testing system comprises the following steps:

[0017] S1, configuring the piston motion transmission mechanism, piston position acquisition module, working pressure data acquisition module and data processing and conversion module to form a test system;

[0018] S2, the data processing and conversion module sets multiple time parameters, and collects working pressure parameters and piston motion position parameters corresponding to each time parameter;

[0019] S3, according to the set multiple time parameters, configure the collected working pressure parameters and piston movement position parameters to draw a pressure change curve and a piston movement speed change curve;

[0020] S4, analyzing the pressure change curve and the piston movement speed change curve, determining a plurality of detection points on the pressure change curve and the piston movement speed change curve, performing a derivative analysis on each detection point, and obtaining an actual change trend of the pressure change curve and the piston movement speed change curve based on a slope change of each point;

[0021] S5, comparing the actual change trends of the pressure change curve and the piston movement speed change curve with the standard change curve, and determining the reversing performance of the hydraulic profile control pump based on the curve comparison results.

[0022] The present invention adopts the above-mentioned structure, and transmits the movement of the piston from the high-pressure working chamber to the displacement sensor through the piston motion transmission mechanism to detect the pressure change parameters in the working chamber, thereby ensuring the accuracy of the detection results; the position parameters of the piston are collected in real time through the piston position acquisition module, and the real-time collection is synchronized with the piston stroke movement; the pressure change parameters in the high-pressure working chamber are collected in real time through the working pressure data acquisition module to ensure the accuracy of the pressure change parameters; the collected working pressure parameters and piston motion position parameters are processed through the data processing and conversion module, and displayed and stored in real time in the form of data curves, which has the advantages of accuracy, efficiency, simplicity and practicality. Description of the drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the process of the present invention. Specific implementation method:

[0025] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0026] like Figure 1-2 As shown in the figure, a hydraulic profile control pump reversing performance test system includes:

[0027] A piston motion transmission mechanism, which is used to transmit the piston motion from the high-pressure working chamber to the displacement sensor; and includes a connecting rod, a connecting rod seal, a large cylinder head, and an assembly for mounting the displacement sensor;

[0028] A piston position acquisition module, which is used to acquire the position parameters of the piston in real time; it includes a high-precision magnetostrictive displacement sensor;

[0029] A working pressure data acquisition module, which is used to collect pressure change parameters in the high-pressure working chamber in real time; it includes a pressure transmitter;

[0030] The data processing and conversion module is used to process the collected working pressure parameters and piston movement position parameters, and display and store them in real time in the form of data curves.

[0031] One end of the connecting rod is tightly connected to the piston that performs linear reciprocating motion through a thread, and the other end extends outside the high-pressure working chamber and is connected to the magnetostrictive displacement sensor;

[0032] The connecting rod seal is fixed between the cylinder cover and the connecting rod to prevent the working fluid in the high-pressure chamber from leaking out.

[0033] The piston position acquisition module establishes a communication connection with the data processing and conversion module, and accurately transmits the collected piston direction parameters and piston real-time position parameters to the data processing and conversion module; the signal input end of the high-precision magnetostrictive displacement sensor is directly connected to the piston rod, and the signal output end of the high-precision magnetostrictive displacement sensor is directly electrically connected to the data processing and conversion module, so that the high-precision magnetostrictive displacement sensor can accurately detect the movement of the piston rod.

[0034] The working pressure data acquisition module establishes a communication connection with the data processing and conversion module, and transmits the pressure change data detected in the high-pressure working chamber to the data processing and conversion module; the signal input end of the pressure transmitter is connected to the inside of the high-pressure working chamber, and the signal output end of the pressure transmitter is connected to the data processing and conversion module through a communication line.

[0035] The data processing and conversion module includes a computer with a timer inside. The timer is used to provide time parameters and configure the collected working pressure parameters and piston movement position parameters to obtain two curves of pressure change and piston movement speed change.

[0036] The testing method of the testing system comprises the following steps:

[0037] S1, configuring the piston motion transmission mechanism, piston position acquisition module, working pressure data acquisition module and data processing and conversion module to form a test system;

[0038] S2, the data processing and conversion module sets multiple time parameters, and collects working pressure parameters and piston motion position parameters corresponding to each time parameter;

[0039] S3, according to the set multiple time parameters, configure the collected working pressure parameters and piston movement position parameters to draw a pressure change curve and a piston movement speed change curve;

[0040] S4, analyzing the pressure change curve and the piston movement speed change curve, determining a plurality of detection points on the pressure change curve and the piston movement speed change curve, performing a derivative analysis on each detection point, and obtaining an actual change trend of the pressure change curve and the piston movement speed change curve based on a slope change of each point;

[0041] S5, comparing the actual change trends of the pressure change curve and the piston movement speed change curve with the standard change curve, and determining the reversing performance of the hydraulic profile control pump based on the curve comparison results.

[0042] The working principle of the hydraulic profile control pump reversing performance test system in the embodiment of the present invention is: based on the mutual cooperation of multiple functional components, it can detect and record multiple types of data in the form of curves during the test operation of the hydraulic profile control pump, accurately test the reversing impact performance of the hydraulic profile control pump, and then comprehensively evaluate the performance of the hydraulic profile control pump, thereby ensuring the accuracy and efficiency of the test results, thereby providing effective data support for the optimal design of the hydraulic profile control pump.

[0043] In the overall solution, the test system includes: a piston motion transmission mechanism for transmitting the piston motion from the high-pressure working chamber to the displacement sensor; including a connecting rod, a connecting rod seal, a large cylinder head and components for installing the displacement sensor; a piston position acquisition module for real-time acquisition of the piston position parameters; including a high-precision magnetostrictive displacement sensor; a working pressure data acquisition module for real-time acquisition of the pressure change parameters in the high-pressure working chamber; including a pressure transmitter; a data processing and conversion module for processing the collected working pressure parameters and piston motion position parameters, and displaying and storing them in real-time in the form of data curves.

[0044] The core innovation of this application is that the real-time pressure value and the real-time position value of the piston collected in the data processing and conversion module are displayed on the Y-axis of the dynamic chart on the computer display screen; the time parameter is used as the X-axis of the dynamic chart on the display screen to obtain two curves of pressure change and piston movement speed change.

[0045] By comparing and analyzing the two curves, the reversing performance of the hydraulic profile control pump can be accurately judged and analyzed.

[0046] Preferably, one end of the connecting rod is tightly connected to the piston that performs linear reciprocating motion through a thread, and the other end extends outside the high-pressure working chamber and is connected to the magnetostrictive displacement sensor; the connecting rod is sealed and fixed between the cylinder head and the connecting rod, which can prevent the working fluid in the high-pressure chamber from leaking, ensure the accuracy of the displacement sensor detection, and ensure that the movement of the piston is synchronized with the movement of the displacement sensor.

[0047] Preferably, the piston position acquisition module establishes a communication connection with the data processing and conversion module, and accurately transmits the collected piston direction parameters and piston real-time position parameters to the data processing and conversion module; the signal input end of the high-precision magnetostrictive displacement sensor is directly connected to the piston rod, and the signal output end of the high-precision magnetostrictive displacement sensor is directly electrically connected to the data processing and conversion module, so that the high-precision magnetostrictive displacement sensor can accurately detect the movement of the piston rod.

[0048] Preferably, the working pressure data acquisition module establishes a communication connection with the data processing and conversion module, and transmits the pressure change data detected in the high-pressure working chamber to the data processing and conversion module; the signal input end of the pressure transmitter is connected to the inside of the high-pressure working chamber, and the signal output end of the pressure transmitter is connected to the data processing and conversion module through a communication line.

[0049] The data processing and conversion module is the core component of this application, including a computer. A timer is provided in the computer. The timer is used to provide time parameters and configure them with the collected working pressure parameters and piston movement position parameters to obtain two curves of pressure change and piston movement speed change.

[0050] On the other hand, the testing method of the present application includes the following steps: configuring the piston motion transmission mechanism, the piston position acquisition module, the working pressure data acquisition module and the data processing and conversion module to form a testing system; the data processing and conversion module sets multiple time parameters, and collects the working pressure parameters and the piston motion position parameters corresponding to each time parameter; according to the set multiple time parameters, the collected working pressure parameters and piston motion position parameters are configured to draw the pressure change curve and the piston motion speed change curve; the pressure change curve and the piston motion speed change curve are analyzed, and multiple detection points are determined on the pressure change curve and the piston motion speed change curve respectively, and each detection point is derived and analyzed, and the actual change trend of the pressure change curve and the piston motion speed change curve is obtained according to the slope change of each point; the actual change trend of the pressure change curve and the piston motion speed change curve is compared with the standard change curve, and the reversing performance of the hydraulic profile control pump is determined according to the curve comparison results.

[0051] Generally speaking, the components involved in this application are standard parts in the electrical field, which have low acquisition costs and stable quality, and accurate data collection.

[0052] It should be noted in particular that this application uses data processing to replace manual experience judgment, which can accurately detect the performance of hydraulic profile control pumps, and can also provide scientific and accurate data support for the optimization design of profile control pumps and the development of new products, and has great practical and promotion value.

[0053] To sum up, the hydraulic profile control pump reversing performance test system in the embodiment of the present invention is based on the mutual cooperation of multiple functional components. During the test operation of the hydraulic profile control pump, it can detect and record multiple types of data in the form of curves, accurately test the reversing impact performance of the hydraulic profile control pump, and then comprehensively evaluate the performance of the hydraulic profile control pump, thereby ensuring the accuracy and efficiency of the test results, and providing effective data support for the optimal design of the hydraulic profile control pump.

[0054] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any replacement, improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0055] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. Hydraulic profile control pump reversing performance test system, characterized by: The test system comprises: A piston motion transmission mechanism, which is used to transmit the piston motion from the high-pressure working chamber to the displacement sensor; and includes a connecting rod, a connecting rod seal, a large cylinder head, and an assembly for mounting the displacement sensor; A piston position acquisition module, which is used to acquire the position parameters of the piston in real time; it includes a high-precision magnetostrictive displacement sensor; A working pressure data acquisition module, which is used to collect pressure change parameters in the high-pressure working chamber in real time; it includes a pressure transmitter; The data processing and conversion module is used to process the collected working pressure parameters and piston movement position parameters, and display and store them in real time in the form of data curves.

2. The hydraulic profile control pump reversing performance testing system according to claim 1, characterized in that: One end of the connecting rod is tightly connected to the piston that performs linear reciprocating motion through a thread, and the other end extends outside the high-pressure working chamber and is connected to the magnetostrictive displacement sensor; The connecting rod seal is fixed between the cylinder cover and the connecting rod to prevent the working fluid in the high-pressure chamber from leaking out.

3. The hydraulic profile control pump reversing performance testing system according to claim 1, characterized in that: The piston position acquisition module establishes a communication connection with the data processing and conversion module, and accurately transmits the collected piston direction parameters and piston real-time position parameters to the data processing and conversion module; the signal input end of the high-precision magnetostrictive displacement sensor is directly connected to the piston rod, and the signal output end of the high-precision magnetostrictive displacement sensor is directly electrically connected to the data processing and conversion module, so that the high-precision magnetostrictive displacement sensor can accurately detect the movement of the piston rod.

4. The hydraulic profile control pump reversing performance testing system according to claim 1, characterized in that: The working pressure data acquisition module establishes a communication connection with the data processing and conversion module, and transmits the pressure change data detected in the high-pressure working chamber to the data processing and conversion module; the signal input end of the pressure transmitter is connected to the inside of the high-pressure working chamber, and the signal output end of the pressure transmitter is connected to the data processing and conversion module through a communication line.

5. The hydraulic profile control pump reversing performance testing system according to claim 1, characterized in that: The data processing and conversion module includes a computer with a timer inside. The timer is used to provide time parameters and configure the collected working pressure parameters and piston movement position parameters to obtain two curves of pressure change and piston movement speed change.

6. The hydraulic profile control pump reversing performance testing system according to claim 1, characterized in that: The testing method of the testing system comprises the following steps: S1, configuring the piston motion transmission mechanism, piston position acquisition module, working pressure data acquisition module and data processing and conversion module to form a test system; S2, the data processing and conversion module sets multiple time parameters, and collects working pressure parameters and piston motion position parameters corresponding to each time parameter; S3, according to the set multiple time parameters, configure the collected working pressure parameters and piston movement position parameters to draw a pressure change curve and a piston movement speed change curve; S4, analyzing the pressure change curve and the piston movement speed change curve, determining a plurality of detection points on the pressure change curve and the piston movement speed change curve, performing a derivative analysis on each detection point, and obtaining an actual change trend of the pressure change curve and the piston movement speed change curve based on a slope change of each point; S5, comparing the actual change trends of the pressure change curve and the piston movement speed change curve with the standard change curve, and determining the reversing performance of the hydraulic profile control pump based on the curve comparison results.

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