Valve flow testing equipment
By designing multiple pipelines and regulating valves, and combining pressure sensors and flow meters, simultaneous testing of multiple valves is achieved, solving the problems of low efficiency and inaccurate evaluation in existing technologies, and providing efficient and accurate valve performance evaluation.
Patent Information
- Application Number
- CN202423211066.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing valve testing equipment is inefficient and has poor evaluation accuracy, making it impossible to compare the performance differences of multiple valves simultaneously.
Design a valve flow testing device that uses multiple test pipelines and regulating valves, combined with pressure sensors and flow meters, to simultaneously test multiple valves, obtain valve opening/closing degree-flow curves, and control the differential pressure and opening/closing degree through an electrical control cabinet.
It improves valve testing efficiency and evaluation accuracy, can quickly measure the performance differences of multiple valves, provides intuitive data comparison, has high structural stability, and is easy to use.
Smart Images
Figure CN223469813U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to valve test technical field especially relates to a valve flow test equipment. BACKGROUND
[0002] Valve is the control part in fluid delivery system, has the functions such as cut-off, regulation, flow guide, prevent backflow, pressure stabilization, shunt or overflow pressure relief, and all need valve to control fluid in fluid delivery system, therefore, the performance of valve will directly influence the operating condition of pipeline, so as to guarantee that each performance parameter in pipeline meets the design requirement, various valves must pass through strict test in the research and development process to ensure the integrity and effectiveness of function.
[0003] The current valve test equipment mainly adopts single-station test mode to test valve, for single-station testing machine, only one valve can be tested at a time, so when mass production or multiple valves are tested, the test efficiency is low, and when mass testing, the overall test cycle is prolonged, and each valve is tested separately, and the performance difference of multiple valves cannot be compared simultaneously, so the accuracy of valve evaluation result is poor. SUMMARY
[0004] The utility model discloses a valve flow test equipment that test efficiency is high, and the evaluation accuracy is higher has been provided to overcome the defects and problems of low valve test efficiency and poor evaluation accuracy in the prior art.
[0005] To achieve the above object, the technical solution of the utility model is: a valve flow test equipment, including water tank, water pump, main pipeline, multiple test pipelines, backflow pipe, one end of the main pipeline is connected with the one end of multiple test pipelines, the other end of the main pipeline is connected with the output end of water pump, water tank, the input end of water pump is connected with water tank, the other end of multiple test pipelines is connected with the one end of backflow pipe, the other end of backflow pipe is connected with water tank, and the valve to be tested is installed on each test pipeline, first regulating valve, flowmeter are installed on the part of main pipeline between water tank and the valve to be tested, second regulating valve is installed on the part of backflow pipe between water tank and the valve to be tested.
[0006] The input end of water pump is connected with connecting pipe, the connecting pipe is connected with water tank, and the output end of water pump is connected with branch pipe, and the branch pipe is connected with main pipeline.
[0007] The first pressure sensor is arranged on the main pipe between the flow meter and the valve to be tested, and the second pressure sensor is arranged on the return pipe between the valve to be tested and the second regulating valve.
[0008] The water tank is provided with an installation frame, and the water pump is installed on the inner bottom wall of the installation frame.
[0009] The installation frame is connected with an electric control cabinet, and the electric control cabinet is connected with the first regulating valve, the second regulating valve, the valves to be tested and the flow meter.
[0010] The electric control cabinet is used for controlling the first regulating valve and the second regulating valve to adjust the pressure difference before and after the valve to be tested, controlling the opening and closing degree of the valve to be tested, and obtaining the flow signal measured by the flow meter.
[0011] Each test pipe is provided with a manual ball valve, and the manual ball valve is arranged between the valve to be tested and the second regulating valve.
[0012] The water pump is provided with a plurality of shock absorbers on the bottom, and the shock absorbers are connected to the inner bottom wall of the installation frame.
[0013] The test pipe is provided with a heavy pipe clamp on the outer side, and the heavy pipe clamp is connected to the inner side wall of the installation frame.
[0014] The installation frame is provided with a foot cup on the bottom.
[0015] The main pipe comprises a first pipe and a second pipe, one end of the first pipe is connected with an installation flange, the other end of the first pipe is connected with the output end of the water pump and the water tank in a communication mode, the first regulating valve is installed on the first pipe, one end of the second pipe is connected with an installation flange, the other end of the second pipe is connected with one end of each test pipe in a communication mode, both ends of the flow meter are connected with flanges, and the two installation flanges are connected with the flanges at both ends of the flow meter through bolts.
[0016] Compared with the prior art, the utility model has the advantages of:
[0017] 1. The valve flow testing equipment, through the setting multiple test pipelines, can place multiple different specification valves for testing at the same time, so that rapid measurement can be realized, and the measurement efficiency is high; by adjusting the opening and closing degree of the valve to be tested, the flow signal in the test can be obtained by cooperating with the flowmeter, the complete curve of the valve opening and closing angle-flow can be obtained, the data of each specification valve can be observed intuitively through the curve diagram, and then the performance difference of different valves can be compared. Therefore, the utility model discloses high testing efficiency and high evaluation accuracy.
[0018] 2. The valve flow testing equipment, the first regulating valve can control the pressure of the main pipeline, the second regulating valve adjusts the opening and closing degree and discharges water back to the water tank to achieve the effect of adjusting the pressure, the first pressure sensor and the second pressure sensor detect the pressure difference before and after the valve to be tested respectively, so that the pressure difference before and after the valve to be tested can be kept as a fixed value, so that the flow curve corresponding to different opening and closing degrees of the valve to be tested under the same pressure difference can be directly obtained, and the pressure difference before and after the valve to be tested under the same opening and closing degree can also be detected, so that the performance parameters of the valve can be obtained. Therefore, the utility model discloses good overall evaluation and high accuracy.
[0019] 3. The valve flow testing equipment, by setting the mounting frame, the foot cup is arranged below the mounting frame, the mounting frame can be moved and leveled, the pipeline is connected with the mounting frame through the mounting seat, the structure is stable and convenient to disassemble; by setting the manual ball valve, when the valve to be tested of one test pipeline is tested, the test pipeline can be directly closed through the manual ball valve, so that the test accuracy of other test pipelines is avoided; by setting the shock absorber, the vibration and noise generated by the water pump operation can be reduced, the flowmeter is connected with the main pipeline through the flange, and the mounting and dismounting are convenient. Therefore, the utility model discloses convenient use, high structural stability, convenient mounting and dismounting. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structural schematic diagram of the utility model.
[0021] Figure 2 It is the front view schematic diagram of the utility model.
[0022] Figure 3 It is the side view schematic diagram of the utility model.
[0023] Figure 4 It is the top view schematic diagram of the utility model.
[0024] Figure 5 It is the enlarged schematic diagram of the flowmeter in the utility model.
[0025] Figure 6The working principle diagram of the utility model.
[0026] In the figure: mounting frame 1, electric control cabinet 2, water tank 3, water pump 4, valve to be tested 5, first regulating valve 6, second regulating valve 7, main pipeline 8, first pipeline 81, second pipeline 82, mounting flange 83, test pipeline 9, manual ball valve 10, connecting pipe 11, branch pipe 12, return pipe 13, shock absorber 14, heavy pipe clamp 15, foot cup 16, flowmeter 17, flange plate 18, mounting seat 19, first pressure sensor 20, second pressure sensor 21. DETAILED DESCRIPTION
[0027] The utility model is further explained in detail in connection with the following description and specific embodiment and the accompanying drawings.
[0028] Example 1:
[0029] Referring to Figures 1 to 5 A valve flow test equipment, including water tank 3, water pump 4, main pipeline 8, multiple test pipelines 9, return pipe 13, one end of main pipeline 8 is connected with one end of multiple test pipelines 9, the other end of main pipeline 8 is connected with the output end of water pump 4 and water tank 3 respectively, the input end of water pump 4 is connected with water tank 3, the other end of multiple test pipelines 9 is connected with one end of return pipe 13, the other end of return pipe 13 is connected with water tank 3, each test pipeline 9 is installed with valve to be tested 5, the part of main pipeline 8 between water tank 3 and valve to be tested 5 is installed with first regulating valve 6 and flowmeter 17, the part of return pipe 13 between water tank 3 and valve to be tested 5 is installed with second regulating valve 7, the input end of water pump 4 is connected with connecting pipe 11, connecting pipe 11 is connected with water tank 3, the output end of water pump 4 is connected with branch pipe 12, branch pipe 12 is connected with main pipeline 8, the outside of water tank 3 is provided with mounting frame 1, water pump 4 is installed in the inner bottom wall of mounting frame 1, main pipeline 8 and multiple test pipelines 9 are connected with mounting frame 1 through mounting seat 19 respectively, electric control cabinet 2 is connected in mounting frame 1, electric control cabinet 2 is connected with first regulating valve 6, second regulating valve 7, multiple valve to be tested 5 and flowmeter 17;Electric control cabinet 2 is used to control first regulating valve 6 and second regulating valve 7 to adjust the pressure difference before and after valve to be tested 5, control the opening and closing degree of valve to be tested 5 and obtain the flow signal measured by flowmeter 17.
[0030] In this embodiment, the water pump 4 is a variable frequency water pump, the connecting pipe 11, the branch pipe 12 and the return pipe 13 are made of hose material, and the type of the valve to be tested 5 can be changed according to actual needs. In this embodiment, the valve to be tested 5 is an electric flange type ball valve. In this test, six electric flange type ball valves of different specifications are selected for testing. Before the test starts, the valve to be tested is in the open state, and the remaining valves to be tested 5 are all closed. The water pump 4 is started, the water tank 3 draws water into the water pump 4 through the connecting pipe 11 below the water tank 3 and pressurizes the entire pipeline, and finally returns to the water tank 3 through the return pipe 13 above the water tank 3 to form a complete circulation.
[0031] Referring to Figure 6 , the specifications of the six electric flange type ball valves to be tested are DN15, DN20, DN25, DN32, DN40 and DN50, and the specifications of the first regulating valve 6 and the second regulating valve 7 are DN50.
[0032] Embodiment 2
[0033] The basic content is the same as that of embodiment 1, except that:
[0034] Referring to Figure 2 , the first pressure sensor 20 is installed on the main pipeline 8 and located between the flow meter 17 and the valve to be tested 5, and the second pressure sensor 21 is installed on the return pipe 13 and located between the valve to be tested 5 and the second regulating valve 7.
[0035] In this embodiment, the first regulating valve 6 controls the pressure of the entire main pipeline, and the second regulating valve 7 adjusts the opening degree to discharge water back to the water tank to achieve the effect of regulating the pressure. After the entire water circulation, the second regulating valve 7 is in the fully open state, the opening degree of the first regulating valve 6 is adjusted by the electric control cabinet 2, the water pressure before entering the valve to be tested 5 is measured by the first pressure sensor 20, and the pressure is P1, the second pressure sensor 21 measures the pressure P2, and the pressure difference before and after the valve to be tested 5 is kept as a fixed value during the valve test. After the stable fixed pressure difference, the valve to be tested is slowly opened and closed, the corresponding valve opening angle is θ, and the flow signal is received from the flow meter 17 to obtain the complete curve of the valve opening angle θ°-flow L / min.
[0036] Embodiment 3
[0037] The basic content is the same as that of embodiment 1, except that:
[0038] Referring to Figures 1 to 5Each of the test pipes 9 is provided with a manual ball valve 10 between the valve to be tested 5 and the second regulating valve 7, the bottom of the water pump 4 is provided with a plurality of shock absorbers 14, the plurality of shock absorbers 14 are connected to the inner bottom wall of the mounting frame 1, the outer side of the test pipe 9 is provided with a heavy pipe clamp 15, the heavy pipe clamp 15 is connected to the inner side wall of the mounting frame 1, and the bottom of the mounting frame 1 is provided with a foot cup 16.
[0039] In the embodiment, the heavy pipe clamp 15 includes an upper pipe clamp body and a lower pipe clamp body, the upper pipe clamp body and the lower pipe clamp body are combined to form a mounting groove for accommodating the test pipe 9, the lower pipe clamp body is connected to the mounting frame 1 through a base, the upper pipe clamp body is connected and fixed to the lower pipe clamp body through bolts, and the number of the shock absorbers 14 is four, and the four shock absorbers 14 are evenly distributed at the bottom of the water pump 4.
[0040] Embodiment 4
[0041] The basic content is the same as that of embodiment 1, and the difference is that:
[0042] Referring to Figure 5 , the main pipe 8 includes a first pipe 81 and a second pipe 82, one end of the first pipe 81 is connected with a mounting flange 83, the other end of the first pipe 81 is in communication with the output end of the water pump 4 and the water tank 3 respectively, the first regulating valve 6 is mounted on the first pipe 81, one end of the second pipe 82 is connected with a mounting flange 83, the other end of the second pipe 82 is in communication with one end of a plurality of test pipes 9, both ends of the flow meter 17 are connected with flanges 18, and two mounting flanges 83 are connected with the flanges 18 at both ends of the flow meter 17 through bolts.
[0043] In the embodiment, the flow meter 17 is a vortex flow meter, the two connecting pipes of the vortex flow meter are provided with flanges 18, and the flanges 17 are further provided with sealing rings, before measurement, the flanges 18 at both ends of the flow meter 17 are aligned with the mounting flanges 83, and then are connected and fixed through fastening bolts.
Claims
1. A valve flow testing apparatus, characterized by: The utility model provides a valve test device, including water tank (3), water pump (4), main pipeline (8), a plurality of test pipeline (9), backflow pipe (13), one end of main pipeline (8) is connected with a plurality of test pipeline (9) one end all intercommunication, the other end of main pipeline (8) is connected with water pump (4) output, water tank (3) intercommunication respectively, water pump (4) input and water tank (3) intercommunication, a plurality of test pipeline (9) the other end is connected with backflow pipe (13) one end intercommunication, the other end of backflow pipe (13) is connected with water tank (3) intercommunication, every test pipeline (9) on all be installed with the valve (5) to be tested, the part of main pipeline (8) between water tank (3) and the valve (5) to be tested is installed with first regulating valve (6), flowmeter (17), backflow pipe (13) the part between water tank (3) and the valve (5) to be tested is installed with second regulating valve (7).
2. A valve flow testing apparatus according to claim 1, wherein: The input end of the water pump (4) is communicated with a connecting pipe (11), the connecting pipe (11) is communicated with the water tank (3), and the output end of the water pump (4) is communicated with a branch pipe (12), the branch pipe (12) is communicated with the other end of the main pipeline (8).
3. A valve flow testing apparatus according to claim 2, wherein: A first pressure sensor (20) is installed on the main pipeline (8), and the first pressure sensor (20) is located between the flowmeter (17) and the valve (5) to be tested. A second pressure sensor (21) is installed on the backflow pipe (13), and the second pressure sensor (21) is located between the valve (5) to be tested and the second regulating valve (7).
4. The valve flow test apparatus of claim 1, wherein: An installation frame (1) is arranged on the outside of the water tank (3), and the water pump (4) is installed on the inner bottom wall of the installation frame (1). The main pipeline (8) and the plurality of test pipelines (9) are connected to the installation frame (1) through installation seats (19) respectively.
5. A valve flow testing apparatus as claimed in claim 4, wherein: An electric control cabinet (2) is connected in the installation frame (1), and the electric control cabinet (2) is connected with the first regulating valve (6), the second regulating valve (7), the plurality of valves (5) to be tested, and the flowmeter (17). The electric control cabinet (2) is used for controlling the first regulating valve (6) and the second regulating valve (7) to adjust the pressure difference before and after the valve (5) to be tested, controlling the opening and closing degree of the valve (5) to be tested, and obtaining the flow signal measured by the flowmeter (17).
6. The valve flow test apparatus of claim 1, wherein: A manual ball valve (10) is installed on each test pipeline (9), and the manual ball valve (10) is located between the valve (5) to be tested and the second regulating valve (7).
7. A valve flow testing apparatus as defined in claim 4, wherein: A plurality of shock absorbers (14) are installed on the bottom of the water pump (4), and the plurality of shock absorbers (14) are connected to the inner bottom wall of the installation frame (1).
8. The valve flow test apparatus of claim 4, wherein: A heavy pipe clamp (15) is installed on the outside of the test pipeline (9), and the heavy pipe clamp (15) is connected to the inner side wall of the installation frame (1).
9. The valve flow testing apparatus of claim 4, wherein: A foot cup (16) is installed on the bottom of the installation frame (1).
10. The valve flow testing apparatus of claim 1, wherein: The main pipe (8) includes a first pipe (81) and a second pipe (82), one end of the first pipe (81) is connected with a mounting flange (83), the other end of the first pipe (81) is communicated with the output end of the water pump (4) and the water tank (3) respectively, the first regulating valve (6) is installed on the first pipe (81), one end of the second pipe (82) is connected with a mounting flange (83), the other end of the second pipe (82) is communicated with one end of a plurality of test pipes (9), both ends of the flow meter (17) are connected with flanges (18), and the two mounting flanges (83) are connected with the flanges (18) at both ends of the flow meter (17) through bolts.