A flow meter verification apparatus

Abstract

The utility model relates to the field of flowmeter calibration discloses a flowmeter calibration detection equipment, including the water pipe, the water pipe is connected fixed in the right side of water storage jar, the other end of water pipe is equipped with the installation pipe, the water pump is fixed between water pipe and installation pipe, the other end of installation pipe is detachably installed with first flowmeter, the left side of water storage jar is connected fixed with the water outlet pipe. In the utility model, through the synergetic effect of water pipe, water storage jar, installation pipe, water pump, first flowmeter, water outlet pipe, second flowmeter, connecting pipe, first branch pipe, first valve, second valve, second branch pipe and third valve, the accurate calibration detection of flowmeter is realized, need not to carry out the tedious dismounting back and forth to change flowmeter, just through the opening and closing state of valve adjustment, can realize the exchange of water flow direction sequence, saves time and manpower cost, improves the detection efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of flow meter calibration, specifically to a flow meter calibration and testing device. Background Technology

[0002] A flow meter is an instrument that indicates the flow rate and / or the total fluid volume within a selected time interval. Simply put, it is an instrument used to measure the flow rate of fluid in pipes or open channels. Flow meters are further classified into differential pressure flow meters, rotor flow meters, throttling flow meters, slot flow meters, volumetric flow meters, electromagnetic flow meters, ultrasonic flow meters, etc.; according to the medium, they are classified into liquid flow meters and gas flow meters.

[0003] A novel flow meter calibration device, disclosed in Chinese Patent Publication No. CN218973591U, includes a water storage tank, a flow meter to be calibrated, and the flow meter itself. A water outlet pipe is fixedly connected to the upper end of the water storage tank, and a water pump is fixedly connected to the right end of the water outlet pipe. A third water supply pipe is fixedly installed at the lower end of the water storage tank, and a connecting component is fixedly installed at the right end of the third water supply pipe, enabling the third water supply pipe and the flow meter to be calibrated to be installed together.

[0004] In the above scheme, the flow meter and the calibration flow meter are installed by connecting the components. The order of the two flow meters is swapped to detect two sets of values ​​and compare the test results. This has the following disadvantage: when using this calibration device, the flow meter needs to be disassembled and reassembled repeatedly for testing, which is a relatively cumbersome operation. Utility Model Content

[0005] The purpose of this invention is to provide a flow meter calibration and testing device to solve the problem that the flow meter needs to be disassembled and reassembled repeatedly for testing when using the calibration device, which is a rather cumbersome operation.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a flow meter calibration and testing device, comprising a water supply pipe, the water supply pipe being connected and fixed to the right side of a water storage tank, an installation pipe being provided at the other end of the water supply pipe, a water pump being fixed between the water supply pipe and the installation pipe, a first flow meter being detachably installed at the other end of the installation pipe, an outlet pipe being connected and fixed to the left side of the water storage tank, a second flow meter being detachably installed at the other end of the outlet pipe, a connecting pipe being provided between the first flow meter and the second flow meter, a first branch pipe being connected and fixed between the installation pipe and the outlet pipe, a first valve being provided on the water supply pipe, the installation pipe and the outlet pipe, two second valves being provided on the first branch pipe, a second branch pipe being connected and fixed between the outlet pipe and the installation pipe, and two third valves being provided on the second branch pipe.

[0007] Preferably, the first branch pipe is equipped with a first electric regulating valve, the second branch pipe is equipped with a second electric regulating valve, and a PLC controller is fixed on the right side of the water storage tank. The first electric regulating valve and the second electric regulating valve are both electrically connected to the PLC controller.

[0008] Preferably, pressure sensors are fixedly connected to the top surfaces of both the mounting pipe and the outlet pipe, and the pressure sensors are electrically connected to the PLC controller.

[0009] Preferably, a display is fixed on the top surface of the water storage tank, and the display is electrically connected to the PLC controller.

[0010] Preferably, the left and right sides of the first flow meter and the left and right sides of the second flow meter are threaded with F-type quick connectors, and C-type lever quick connectors are fixed inside one end of the installation pipe, one end of the outlet pipe and both ends of the connecting pipe. The plurality of F-type quick connectors are detachably connected to the plurality of C-type lever quick connectors.

[0011] Preferably, a sealing ring is fixed to the outer wall of each of the F-type quick connectors.

[0012] Compared with existing technologies, a flow meter calibration and testing device that adopts the above technical solution has the following advantages:

[0013] I. In use, through the coordinated action of the water supply pipe, water storage tank, installation pipe, water pump, first flow meter, outlet pipe, second flow meter, connecting pipe, first branch pipe, first valve, second valve, second branch pipe and third valve, accurate calibration and testing of the flow meter is achieved. There is no need to perform tedious disassembly and reassembly of the flow meter. The flow direction sequence can be changed simply by adjusting the opening and closing state of the valve, saving time and labor costs and improving testing efficiency.

[0014] Second, in use, this precise flow control provides a stable and reliable environment for flow meter testing, effectively avoiding testing errors caused by flow fluctuations and improving the accuracy and reliability of test results. If abnormal pressure fluctuations occur, corresponding measures can be quickly taken to adjust the pressure, ensuring the testing process is conducted under stable pressure. Staff do not need to tediously check complex instruments or record data; they can simply obtain the pressure values ​​of the installation pipe and outlet pipe intuitively and in real time through the display, facilitating the monitoring and recording of pressure conditions during the testing process.

[0015] Third, in use, this quick-disassembly and assembly design shortens the flow meter replacement time and improves work efficiency. The sealing ring fits tightly at the connection, forming an effective sealing barrier that effectively prevents water leakage from the connection, ensuring stable pressure and flow in the pipeline, improving the sealing and reliability of the entire detection system, and providing strong support for accurately detecting the flow meter's performance. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment.

[0017] Figure 2 This is a breakdown diagram of an embodiment.

[0018] Figure 3 The diagram shows the disassembled parts of the F-type quick connector and the C-type lever quick connector in the embodiment.

[0019] Figure 4 Examples Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Water supply pipe; 2. Water storage tank; 3. Installation pipe; 4. Water pump; 5. First flow meter; 6. Water outlet pipe; 7. Second flow meter; 8. Connecting pipe; 9. First branch pipe; 10. First valve; 11. Second valve; 12. Second branch pipe; 13. Third valve; 14. First electric regulating valve; 15. Second electric regulating valve; 16. PLC controller; 17. Pressure sensor; 18. Display; 19. Type F quick coupling; 20. Type C lever quick coupling; 21. Sealing ring. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, a flow meter calibration and testing device includes a water supply pipe 1, which is connected and fixed to the right side of a water storage tank 2. The other end of the water supply pipe 1 is provided with an installation pipe 3. A water pump 4 is fixed between the water supply pipe 1 and the installation pipe 3. A first flow meter 5 is detachably installed at the other end of the installation pipe 3. A water outlet pipe 6 is connected and fixed to the left side of the water storage tank 2. A second flow meter 7 is detachably installed at the other end of the water outlet pipe 6. A connecting pipe 8 is provided between the first flow meter 5 and the second flow meter 7. A first branch pipe 9 is connected and fixed between the installation pipe 3 and the water outlet pipe 6. A first valve 10 is provided on the water supply pipe 1, the installation pipe 3, and the water outlet pipe 6. Two second valves 11 are provided on the first branch pipe 9. A second branch pipe 12 is connected and fixed between the water outlet pipe 6 and the installation pipe 3. Two third valves 13 are provided on the second branch pipe 12.

[0023] In use, the first flow meter 5 is set as the standard flow meter and serves as the benchmark for testing; the second flow meter 7 is used as the flow meter to be calibrated, awaiting precise evaluation of its performance.

[0024] First, the staff closes the two second valves 11 on the first branch pipe 9 and the two third valves 13 on the second branch pipe 12 to ensure that the water flows in the predetermined direction. Then, they open the first valves 10 on the water supply pipe 1, the installation pipe 3, and the outlet pipe 6, and start the water pump 4 to pressurize the water. Under pressure, the water in the storage tank 2 flows through the water supply pipe 1 and the installation pipe 3 in sequence, and the value V1 is detected by the first flow meter 5. Then, it flows through the connecting pipe 8 and the value V2 is detected by the second flow meter 7 to be calibrated. After completing this process, the water inside the pipe is transported back to the storage tank 2. Then, the first valves 10 on the water supply pipe 1, the installation pipe 3, and the outlet pipe 6, as well as the water pump 4, are closed.

[0025] Subsequently, the staff adjusted the valve status again, opening the first valve 10 on the water supply pipe 1, the two second valves 11 on the first branch pipe 9, and the two third valves 13 on the second branch pipe 12. The water pump 4 was restarted to increase the pressure, and the water flowed from the water storage tank 2 to the installation pipe 3, then into the first branch pipe 9, and then into the outlet pipe 6. At this time, the water flowed from the outlet pipe 6 through the second flow meter 7 to be calibrated and detected the value V3, and then flowed through the connecting pipe 8 and through the first flow meter 5 to detect the value V4. If the values ​​of V1 and V3 are the same, and the values ​​of V2 and V4 are the same, it indicates that the second flow meter 7 to be calibrated is a qualified product; otherwise, it is a non-qualified product.

[0026] Through the coordinated action of water supply pipe 1, water storage tank 2, installation pipe 3, water pump 4, first flow meter 5, outlet pipe 6, second flow meter 7, connecting pipe 8, first branch pipe 9, first valve 10, second valve 11, second branch pipe 12, and third valve 13, accurate calibration and testing of the flow meter is achieved. There is no need for tedious disassembly and reassembly of the flow meter. The flow direction and sequence can be changed simply by adjusting the opening and closing of the valves, saving time and labor costs and improving testing efficiency.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, a first electric regulating valve 14 is provided on the first branch pipe 9, and a second electric regulating valve 15 is provided on the second branch pipe 12. A PLC controller 16 is fixed on the right side of the water storage tank 2. The first electric regulating valve 14 and the second electric regulating valve 15 are both electrically connected to the PLC controller 16. The model of the PLC controller 16 is Siemens S7-200.

[0028] During use, the staff uses the intelligent control function of the PLC controller 16 to start the first electric regulating valve 14 and the second electric regulating valve 15. These two electric regulating valves can adjust the flow rate in the pipeline in real time and accurately according to actual needs, ensuring that the flow rate in the pipeline remains consistent after the water flow direction is changed. This precise flow control provides a stable and reliable environment for the flow meter detection, effectively avoids detection errors caused by flow fluctuations, and improves the accuracy and reliability of the detection results.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, pressure sensors 17 are fixedly connected to the top surfaces of both the mounting pipe 3 and the outlet pipe 6. The pressure sensors 17 are electrically connected to the PLC controller 16. A display 18 is fixedly connected to the top surface of the water storage tank 2. The display 18 is electrically connected to the PLC controller 16.

[0030] During operation, the operator issues a start command via the PLC controller 16, and the pressure sensor 17 quickly enters working mode. It can accurately and in real-time detect the pressure in the installation pipe 3 and the outlet pipe 6. If abnormal pressure fluctuations occur, it can quickly take corresponding measures to adjust the pressure, ensuring the testing process is conducted under a stable pressure environment. When the pressure sensor 17 accurately detects the pressure in the installation pipe 3 and the outlet pipe 6, it immediately transmits the pressure information to the PLC controller 16 in the form of an electrical signal. The received pressure data is quickly analyzed and processed. Subsequently, the processed pressure value is clearly displayed on the display 18, which is electrically connected to the PLC controller 16. The operator no longer needs to tediously consult complex instruments or record data; they can simply obtain the pressure values ​​of the installation pipe 3 and the outlet pipe 6 intuitively and in real-time through the display 18, facilitating the monitoring and recording of pressure conditions during the testing process.

[0031] like Figures 1-4 As shown, F-type quick connectors 19 are threadedly connected to the left and right sides of the first flow meter 5 and the left and right sides of the second flow meter 7. C-type lever quick connectors 20 are fixed inside one end of the mounting pipe 3, one end of the outlet pipe 6 and both ends of the connecting pipe 8. Several F-type quick connectors 19 are detachably connected to several C-type lever quick connectors 20. Sealing rings 21 are fixed to the outer walls of several F-type quick connectors 19.

[0032] In this device, when it is necessary to disassemble or assemble the first flow meter 5 or the second flow meter 7, the operator does not need to use complicated tools or spend a lot of time on tedious connection and disassembly work. A simple rotation operation is all that is required to thread the F-type quick connector 19 onto the first flow meter 5 or the second flow meter 7. Then, it is quickly connected to the C-type lever-type quick connector 20 at one end of the installation pipe 3, the outlet pipe 6, or both ends of the connecting pipe 8. This quick-disassembly design shortens the flow meter replacement time and improves work efficiency. When the operator threads the F-type quick connector 19 onto the first flow meter 5 or the second flow meter 7, the sealing ring 21 fits tightly against the connection, forming an effective sealing barrier. This effectively prevents water leakage from the connection, ensuring stable pressure and flow in the pipeline, improving the sealing and reliability of the entire detection system, and providing a strong guarantee for accurately detecting the flow meter's performance.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flow meter calibration and testing device, comprising a water supply pipe (1), wherein the water supply pipe (1) is connected to and fixed on the right side of a water storage tank (2), characterized in that, The other end of the water supply pipe (1) is provided with an installation pipe (3). A water pump (4) is fixed between the water supply pipe (1) and the installation pipe (3). A first flow meter (5) is detachably installed at the other end of the installation pipe (3). A water outlet pipe (6) is fixedly connected to the left side of the water storage tank (2). A second flow meter (7) is detachably installed at the other end of the water outlet pipe (6). A connecting pipe (8) is provided between the first flow meter (5) and the second flow meter (7). A first branch pipe (9) is fixedly connected between the installation pipe (3) and the water outlet pipe (6). A first valve (10) is provided on the water supply pipe (1), the installation pipe (3), and the water outlet pipe (6). Two second valves (11) are provided on the first branch pipe (9). A second branch pipe (12) is fixedly connected between the water outlet pipe (6) and the installation pipe (3). Two third valves (13) are provided on the second branch pipe (12).

2. The flow meter calibration and testing device according to claim 1, characterized in that: The first branch pipe (9) is provided with a first electric regulating valve (14), the second branch pipe (12) is provided with a second electric regulating valve (15), and a PLC controller (16) is fixed on the right side of the water storage tank (2). The first electric regulating valve (14) and the second electric regulating valve (15) are both electrically connected to the PLC controller (16).

3. The flow meter calibration and testing device according to claim 2, characterized in that: The top surfaces of the mounting pipe (3) and the water outlet pipe (6) are both connected to and fixed with pressure sensors (17), and the pressure sensors (17) are electrically connected to the PLC controller (16).

4. The flow meter calibration and testing device according to claim 3, characterized in that: A display (18) is fixed on the top surface of the water storage tank (2), and the display (18) is electrically connected to the PLC controller (16).

5. The flow meter calibration and testing device according to claim 1, characterized in that: The left and right sides of the first flow meter (5) and the left and right sides of the second flow meter (7) are threaded with F-type quick connectors (19). One end of the installation pipe (3), the outlet pipe (6) and both ends of the connecting pipe (8) are fixed with C-type lever quick connectors (20). Several F-type quick connectors (19) are detachably connected to several C-type lever quick connectors (20).

6. The flow meter calibration and testing device according to claim 5, characterized in that: A sealing ring (21) is fixed to the outer wall of several of the aforementioned F-type quick connectors (19).

Images