Plunger pump pressure and flow testing device
By using an electric push rod to drive the moving seat and the conical seat design, the problem of complicated connections in the pressure and flow detection of plunger pumps is solved, enabling fast and accurate testing, reducing water waste and installation time, and improving testing efficiency.
Patent Information
- Application Number
- CN202422974118.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In existing methods for detecting pressure and flow in plunger pumps, the flow meter and pressure gauge are connected to the plunger pump using threaded joints, which results in cumbersome installation, long installation time, and difficult disassembly, affecting rapid and efficient detection.
The design employs an electric push rod to drive the moving seat and a conical seat, enabling rapid and stable docking of the flow meter and pressure gauge with the plunger pump. The rubber conical seat improves sealing, and a circulation system is formed through a water tank and inlet pipe to achieve accurate testing.
It significantly shortens test preparation time, improves connection stability and sealing, ensures test accuracy and reliability, reduces water waste, simplifies installation steps, and improves test efficiency.
Smart Images

Figure CN223498111U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of plunger pump testing devices, specifically a plunger pump pressure and flow testing device. Background Technology
[0002] As an important fluid transfer device, the stability and reliability of the plunger pump's performance are crucial to the operation of the entire fluid system. Therefore, accurate and rapid detection of the plunger pump's pressure and flow rate is particularly important.
[0003] Currently, when testing the pressure and flow of a plunger pump, the common method is to connect a flow meter connected to a water tank at the input end of the plunger pump to measure the input flow rate; at the same time, a pressure gauge is connected to the output end of the plunger pump to measure the output pressure.
[0004] While this testing method can meet the performance testing requirements of plunger pumps to some extent, in practice, existing flow meters and pressure gauges are usually connected to the plunger pump using threaded connectors. This connection method is not only cumbersome to install, requiring a lot of time and effort to align and tighten the threads, but it is also difficult to disassemble, making it unsuitable for rapid and efficient testing of plunger pumps.
[0005] Therefore, this application provides a plunger pump pressure and flow testing device to solve the above problems. Utility Model Content
[0006] This application provides a plunger pump pressure and flow testing device, aiming to solve the problems mentioned in the background art, where existing flow meters and pressure gauges are usually connected to plunger pumps via threaded joints. This connection method is not only cumbersome to install, requiring a lot of time and effort to align and tighten the threads, but also difficult to disassemble, which is not conducive to the rapid and efficient testing of plunger pumps.
[0007] To achieve the above objectives, this application provides the following technical solution: a plunger pump pressure and flow test device, comprising a water tank, an outlet pipe inserted into the water tank, a flow meter disposed on the outlet pipe for communicating with the input end of the plunger pump, an inlet pipe disposed on the water tank, and a pressure gauge disposed on the inlet pipe for communicating with the output end of the plunger pump.
[0008] To facilitate the connection of the flow meter and pressure gauge to the plunger pump, the water tank is equipped with an adjustment structure for adjusting the position of the flow meter. This adjustment structure includes an electric push rod fixedly mounted on the water tank and a movable seat fixedly connected to the output end of the electric push rod and connected to the flow meter. The ends of the flow meter and pressure gauge opposite to each other are fixedly connected to conical seats for insertion into the input and output ends of the plunger pump, respectively. When testing the pressure and flow of the plunger pump, the electric push rod first moves the flow meter closer to the pressure gauge, ensuring that the flow meter and pressure gauge are securely engaged with the input and output ends of the plunger pump via the conical seats. After ensuring a stable and sealed connection, the plunger pump is started. The suction force of the plunger pump draws water from the water tank into the pump through the outlet pipe and the flow meter. The water is pressurized inside the pump and flows back into the water tank through the pressure gauge and the inlet pipe, forming a circulation. During this process, the flow meter measures the water flow rate entering the plunger pump in real time, and the pressure gauge measures the water pressure output by the plunger pump in real time, thus achieving accurate testing of the plunger pump's pressure and flow rate.
[0009] Preferably, to improve the sealing performance of the connection, the conical seat is made of rubber. The rubber conical seat significantly improves the sealing performance at the connection with the plunger pump, effectively preventing water leakage during testing and ensuring the accuracy and reliability of the test.
[0010] Preferably, to avoid affecting the adjustment of the flow meter's position, the outlet pipe is connected to the flow meter via a flexible hose. This flexible hose connection design allows the flow meter to move and adjust its position more freely, facilitating a faster and more stable connection with the plunger pump, simplifying installation, and improving testing efficiency.
[0011] Preferably, to facilitate water jetting: the inlet pipe is rectangular in shape, and the bottom of the inlet pipe is conical. The rectangular shape of the inlet pipe provides a wider water flow channel, reduces water resistance and eddies within the pipe, and allows the water to be jetted more smoothly into the inlet pipe, thus improving jetting efficiency.
[0012] Preferably, to facilitate support of the water tank: support legs are fixedly connected to each of the four corners of the bottom of the water tank, and shock-absorbing pads are fixedly connected to the lower ends of the support legs. The design of the support legs ensures the balance and stability of the water tank during the test, avoiding inaccurate testing or equipment damage caused by shaking or tipping.
[0013] This application utilizes an electric actuator to drive the movement of the movable seat and flow meter, achieving rapid and stable docking with the plunger pump, significantly reducing test preparation time. The conical seat design ensures a tight connection between the flow meter and pressure gauge and the plunger pump's input and output ends, effectively preventing leakage and improving test accuracy. A circulation system consisting of a water tank and inlet pipe enables the recycling of test water, reducing water waste. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a plunger pump pressure and flow testing device.
[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the conical seat;
[0016] Figure 3 for Figure 1 The top view of the structure in the image.
[0017] In the picture:
[0018] 1. Water tank; 2. Outlet pipe; 21. Hose; 3. Flow meter; 4. Inlet pipe; 5. Pressure gauge; 6. Adjustment structure; 61. Electric push rod; 62. Moving seat; 7. Conical seat; 8. Support leg; 81. Shock-absorbing pad. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] This embodiment provides a plunger pump pressure and flow rate testing device, such as... Figure 1-3 As shown, the testing device includes a water tank 1, an outlet pipe 2 inserted into the water tank 1, a flow meter 3 installed on the outlet pipe 2 for communicating with the input end of the plunger pump, an inlet pipe 4 installed on the water tank 1, and a pressure gauge 5 installed on the inlet pipe 4 for communicating with the output end of the plunger pump.
[0021] To facilitate the connection of flow meter 3 and pressure gauge 5 with the plunger pump, the water tank 1 is equipped with an adjustment structure 6 for adjusting the position of flow meter 3. The adjustment structure 6 includes an electric push rod 61 fixedly mounted on the water tank 1 and a movable seat 62 fixedly connected to the output end of the electric push rod 61 and connected to the flow meter 3. The ends of flow meter 3 and pressure gauge 5 opposite to each other are fixedly connected to conical seats 7 for insertion into the input and output ends of the plunger pump. The electric push rod 61 drives the movable seat 62 and flow meter 3 to move, achieving rapid and stable docking with the plunger pump, significantly shortening test preparation time. The design of the conical seats 7 ensures a tight connection between flow meter 3 and pressure gauge 5 and the input and output ends of the plunger pump, effectively preventing leakage and improving test accuracy. The circulation system formed by the water tank 1 and inlet pipe 4 enables the recycling of test water, reducing water waste. When testing the pressure and flow rate of the plunger pump, the flow meter 3 is first moved closer to the pressure gauge 5 by the electric push rod 61, so that the flow meter 3 and pressure gauge 5 are securely connected to the input and output ends of the plunger pump via the conical seat 7, respectively. After ensuring a stable and sealed connection, the plunger pump is started. The suction force of the plunger pump draws water from inside the water tank 1 into the pump through the outlet pipe 2 and the flow meter 3. After being pressurized inside the pump, the water flows back into the water tank 1 through the pressure gauge 5 and the inlet pipe 4, forming a circulation. During this process, the flow meter 3 measures the water flow rate entering the plunger pump in real time, and the pressure gauge 5 measures the water pressure output by the plunger pump in real time, thereby achieving accurate testing of the plunger pump's pressure and flow rate.
[0022] Furthermore, to improve the sealing performance of the connection, the conical seat 7 is made of rubber. The rubber conical seat 7 significantly improves the sealing performance at the connection with the plunger pump, effectively preventing water leakage during testing and ensuring the accuracy and reliability of the test. Because the rubber conical seat 7 enables a quick and stable connection, it reduces the time required for test interruptions and reconnection due to unstable connections or leaks, thus improving test efficiency. The rubber material has a certain degree of elasticity, allowing it to adapt to the inlet and outlet ends of plunger pumps of different sizes and shapes, improving the versatility and adaptability of the testing device.
[0023] Specifically, to avoid affecting the adjustment of the flow meter 3's position, the outlet pipe 2 and the flow meter 3 are connected via a flexible hose 21. The hose 21 connection design allows the flow meter 3 to move and adjust its position more freely, thus facilitating a quick and stable connection with the plunger pump, simplifying the installation process, and improving testing efficiency. Because the hose 21 can bend and extend freely, it is easier to achieve precise alignment between the flow meter 3 and the plunger pump input during installation, reducing inaccurate testing due to installation errors.
[0024] Specifically, to facilitate water jetting: the inlet pipe 4 is rectangular in shape, with a conical bottom. The rectangular shape of the inlet pipe 4 provides a wider water flow channel, reducing water resistance and eddies within the pipe, allowing water to jet more smoothly into the inlet pipe 4 and improving jetting efficiency. The conical design of the bottom of the inlet pipe 4 allows the water flow to disperse more smoothly when flowing into the water tank 1, promoting water mixing and dissolution, improving water circulation efficiency, and conserving water resources.
[0025] Specifically, to facilitate support for water tank 1, support legs 8 are fixedly connected to the four corners of the bottom of water tank 1, and shock-absorbing pads 81 are fixedly connected to the lower ends of the support legs 8. The design of the support legs 8 ensures the balance and stability of water tank 1 during the test, avoiding inaccurate testing or equipment damage caused by shaking or tipping. The addition of shock-absorbing pads 81 further improves the safety of water tank 1, reducing noise and shaking caused by external impacts or vibrations, and protecting the safety of testing personnel and equipment. The stable support structure and shock-absorbing design help reduce interference factors during the test, improve the accuracy and reliability of the test, and provide a more stable and controllable testing environment for the performance testing of the plunger pump.
[0026] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A plunger pump pressure and flow test device, comprising a water tank (1), an outlet pipe (2) inserted into the water tank (1), a flow meter (3) disposed on the outlet pipe (2) for communicating with the input end of the plunger pump, an inlet pipe (4) disposed on the water tank (1), and a pressure gauge (5) disposed on the inlet pipe (4) for communicating with the output end of the plunger pump; Its features are: The water tank (1) is provided with an adjustment structure (6) for adjusting the position of the flow meter (3). The adjustment structure (6) includes an electric push rod (61) fixedly installed on the water tank (1) and a movable seat (62) fixedly connected to the output end of the electric push rod (61) and connected to the flow meter (3). The flow meter (3) and the pressure gauge (5) are both fixedly connected to a conical seat (7) for insertion into the input and output ends of the plunger pump.
2. The plunger pump pressure and flow testing device according to claim 1, characterized in that: The conical seat (7) is made of rubber.
3. The plunger pump pressure and flow testing device according to claim 1, characterized in that: The water outlet pipe (2) is connected to the flow meter (3) via a flexible hose (21).
4. The plunger pump pressure and flow testing device according to claim 1, characterized in that: The water inlet pipe (4) is rectangular in shape, and the bottom of the water inlet pipe (4) is conical.
5. The plunger pump pressure and flow testing device according to claim 1, characterized in that: The water tank (1) has four fixed support legs (8) at the bottom corners, and the lower end of the support legs (8) is fixedly connected to a shock-absorbing pad (81).