Water meter error metering detection device

Abstract

The utility model relates to the technical field of measuring instrument error detection, in particular to a water meter error measuring and detecting device which comprises a water supply container, a water inlet pipe section, an intelligent variable frequency pump, a sample pipe section, an on-off control pipe section, a water outlet pipe section, a camera, a controller and an electromagnetic flowmeter. According to the utility model, the switching speed of the water valve is different due to different personal habits when people use water, so that various unstable conditions of water flow in a water pipe are simulated, and errors generated by water meter measurement are detected; meanwhile, the device can be used for detecting the measurement error of the water meter under the condition of water leakage caused by untight closing of a water pipe valve. The water for detection can be recycled, so that the water source is saved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring instrument error detection, and in particular to a water meter error measurement detection device. Background Art

[0002] Water meters are widely used in industries such as tap water, heating, and chemicals. Manufacturers or metrology departments are required to verify the meter's indication error according to standards and verification procedures established by relevant departments. The meter's performance, as determined by these standards and verification procedures, is inherently stable under ideal flow conditions. However, in practice, faucets and valves often open and close frequently, causing the water flow to intermittently cycle as the valves open and close, causing the water meter to operate under extremely unstable flow conditions. This undesirable operation can lead to significant measurement errors in the water meter, necessitating the use of an intermittent flow error detection device to assess the impact of unstable flow on water meter errors.

[0003] Based on the above reasons, the utility model with application number CN202222946187 discloses a water meter intermittent flow error detection device, including a mounting stand and a water pipe section provided on the mounting stand for connecting several water meters, one end of the water pipe section is used for water inlet, and the other end is used for connecting a detection pipe section, the detection pipe section includes a water outlet pipe section and a water storage container provided on the lower side of the water outlet pipe section. The utility model can effectively fix the water meter by setting the water pipe section, and at the same time, by connecting the detection pipe section, the water passing through the water meter can be introduced into the detection pipe section, and then the intermittent flow can be controlled by the intermittent valve. At the same time, the electromagnetic flowmeter can monitor and indicate the water flow rate, and the water in the detection pipe section flows into the water storage container. The final water quality can be detected by the electronic scale. After several cycles, the water meter error is calculated by comparing the water meter reading and the electronic scale count, thereby achieving the purpose of water meter flow error detection. However, the new model still has the following defects:

[0004] (1) Although the intermittent valve can control the on-off flow of water, it cannot simulate the speed of the water valve on-off control during human use, which leads to insufficient simulation of unstable water flow;

[0005] (2) In domestic water use, water valves are often not closed tightly. When a trickle of water continues to flow, the measurement error of the water meter is usually large. This new model lacks simulation of this situation.

[0006] (3) Water meter error detection requires continuous water use, and this new type of water discharges the used water, resulting in water waste. Utility Model Content

[0007] The present invention provides a water meter error measurement detection device, the purpose of which is to solve the problems (1)-(3) in the prior art.

[0008] In order to achieve the above purpose, the new technical solution is:

[0009] A water meter error measurement and detection device comprises a water supply container, a water inlet pipe section, an intelligent variable frequency pump, a sample pipe section, an on-off control pipe section, a water outlet pipe section, a camera, a controller, and an electromagnetic flowmeter. The water outlet of the water supply container is connected to the water inlet end of the water inlet pipe section, the water inlet pipe section is provided with an intelligent variable frequency pump, the water outlet end of the water inlet pipe section is connected to the water inlet end of the sample pipe section, a plurality of water meters are connected in series on the sample pipe section, the water outlet end of the sample pipe section is connected to the water inlet end of the on-off control pipe section, the on-off control pipe section is provided with an on-off control mechanism, the water outlet end of the on-off control pipe section is connected to the water inlet end of the water outlet pipe section, a camera is fixedly connected to the water outlet pipe section, the camera is used to monitor the form of water flow at the water outlet end of the water outlet pipe section, the water outlet pipe section is provided with an electromagnetic flowmeter, the controller is electrically connected to a power supply, and is respectively electrically connected to the intelligent variable frequency pump, the on-off control mechanism, the camera, and the electromagnetic flowmeter through wires.

[0010] Preferably, the water inlet pipe section is further provided with a water pressure sensor and a water temperature sensor, and the water pressure sensor and the water temperature sensor are electrically connected to the controller via wires respectively.

[0011] Preferably, a water collecting trough is provided below the sample pipe section, the sample pipe section is connected to the water collecting trough via a bracket, and the water collecting trough is provided with a water collecting trough drain outlet.

[0012] Preferably, the on-off control pipe section is provided with a ball valve, the ball valve is equipped with a disc-shaped handle, the on-off control mechanism includes a stepping motor, a driving gear, and a driven gear, the outer edge of the disc-shaped handle is integrally formed with a driven gear, the output shaft of the stepping motor is fixedly connected to the driving gear, the driving gear is meshed with the driven gear, and the stepping motor is electrically connected to the controller.

[0013] Preferably, a support platform is provided below the on-off control pipe section, and the stepping motor and the controller are respectively fixedly connected to the support platform.

[0014] Preferably, a recovery water pool is provided below the water outlet pipe section, the recovery water pool is connected to the water supply container via a connecting pipe, and a circulating pump is provided on the connecting pipe.

[0015] Preferably, a liquid level sensor is provided in the recycling water pool, and the liquid level sensor and the circulation pump are electrically connected to the controller via wires.

[0016] Preferably, the water supply container is equipped with a temperature control system.

[0017] The beneficial effects of this new water meter error measurement and detection device:

[0018] This new device can simulate the varying speeds of water valve openings and closings caused by different personal habits, thereby simulating various unstable water flow conditions within pipes and detecting errors in water meter measurements. It can also be used to detect water meter errors caused by leaks due to improperly closed pipe valves. The water used for this new device can be recycled, saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 , a schematic top view of the overall structure of the novel;

[0020] Figure 2 , a front view structural diagram of the new model;

[0021] Figure 3 , a schematic diagram of the rear view structure of the new model;

[0022] 1. Water supply container; 2. Water inlet pipe section; 3. Intelligent variable frequency pump; 4. Water pressure sensor; 5. Water temperature sensor; 6. Sample pipe section; 7. Water meter; 8. Water collection tank; 9. Bracket; 10. Support platform; 11. Controller; 12. Disc-shaped handle; 13. Driven gear; 14. Driving gear; 15. Stepper motor; 16. Recovery pool; 17. Water outlet pipe section; 18. Electromagnetic flow meter; 19. Camera; 20. Connecting pipe; 21. Circulation pump; 22. First filter; 23. Second filter; 24. On-off control pipe section. DETAILED DESCRIPTION

[0023] The following describes in detail the implementation methods of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] The following embodiments can be understood as part of the technical structure and principle of the present invention, and can also be understood as a combination of multiple embodiments to explain a wider range of structures and principles of the present invention.

[0026] Example 1

[0027] In this embodiment, the present invention is a new type of water meter error measurement detection device, such as Figure 1 As shown, it includes a water supply container 1, a water inlet pipe section 2, an intelligent variable frequency pump 3, a sample pipe section 6, an on-off control pipe section 24, a water outlet pipe section 17, a camera 19, a controller 11, and an electromagnetic flow meter 18.

[0028] The water outlet of the water supply container 1 is connected to the water inlet end of the water inlet pipe section 2. The water inlet pipe section 2 is equipped with an intelligent variable frequency pump 3. The water outlet end of the water inlet pipe section 2 is connected to the water inlet end of the sample pipe section 6. Several water meters 7 are connected in series on the sample pipe section 6. The water outlet end of the sample pipe section 6 is connected to the water inlet end of the on-off control pipe section 24.

[0029] The on-off control pipe section 24 is provided with an on-off control mechanism. The water outlet end of the on-off control pipe section 24 is connected to the water inlet end of the water outlet pipe section 17. A camera 19 is fixedly connected to the water outlet pipe section 17. The camera 19 is used to monitor the form of the water flow at the water outlet end of the water outlet pipe section. An electromagnetic flow meter is provided on the water outlet pipe section. The controller 11 is electrically connected to the power supply, and is respectively electrically connected to the intelligent variable frequency pump 3, the on-off control mechanism, and the camera 19 through wires.

[0030] Example 2: In combination with the contents disclosed in the above embodiments, this embodiment further discloses the following:

[0031] In this embodiment, Figure 1 As shown, the water inlet pipe section 2 is further provided with a water pressure sensor 4 and a water temperature sensor 5 , and the water pressure sensor 4 and the water temperature sensor 5 are electrically connected to the controller 11 through wires respectively.

[0032] A water collection tank 8 is located below the sample tube section 6. The sample tube section 6 is connected to the water collection tank 8 via a bracket 9. The water collection tank 8 has a water collection tank drain outlet. The on-off control tube section 24 is equipped with a ball valve equipped with a disc-shaped handle 12. The on-off control mechanism includes a stepper motor 15, a driving gear 14, and a driven gear 13. The driven gear 13 is integrally formed on the outer edge of the disc-shaped handle 12. The output shaft of the stepper motor 15 is fixedly connected to the driving gear 14, which meshes with the driven gear 13. The stepper motor 15 is electrically connected to the controller 11.

[0033] Example 3, combined with the contents disclosed in the above embodiments, this embodiment further discloses the following:

[0034] In this embodiment, Figure 1 As shown, a support platform 10 is provided below the on-off control pipe section 24 , and the stepping motor 15 and the controller 11 are fixedly connected to the support platform 10 respectively.

[0035] A recovery water pool 16 is provided below the water outlet pipe section 17 . The recovery water pool 16 is connected to the water supply container 1 via a connecting pipe 20 . A circulating pump 21 is provided on the connecting pipe 20 .

[0036] In this embodiment, Figure 1 As shown, the recovery water tank 16 is provided with a liquid level sensor (not shown), and the liquid level sensor and circulation pump 21 are electrically connected to the controller 11 via wires. The water supply container 1 is equipped with a temperature control system, which is a prior art. The content not described here is solved by existing solutions.

[0037] Example 4

[0038] The working principle of this new model:

[0039] 1. Under the action of the intelligent variable frequency pump, the water in the water supply container enters the sample pipe section through the outlet pipe section, then enters the on-off control pipe section, and finally is discharged into the recovery pool through the outlet pipe section. Among them, several water meters are connected in series on the sample pipe section. During the experiment, the water meter data is recorded in real time and compared with the electromagnetic flow meter to determine the error of the water meter. In addition, the controller adjusts the water pressure by controlling the intelligent variable frequency pump to simulate the error of water meter measurement under different water pressures. At the same time, the water supply container is equipped with a temperature control system, which can also simulate the measurement error of the water meter under different water temperatures or different water temperatures and different water pressures through temperature adjustment.

[0040] 2. The on-off control section is equipped with an on-off control mechanism. The controller controls the speed of the stepper motor to simulate the measurement error of the water meter's displayed data when the water flow is opened or closed at different speeds. At the same time, the camera monitors the outflow pattern, and the controller controls the rotation angle of the stepper motor to simulate the measurement error of the water meter when the water valve is not closed tightly to varying degrees.

[0041] 3. A connecting pipe is provided between the water supply container and the recovery pool. When the water level sensor detects that the water level reaches a certain height, the water in the recovery pool can be pumped to the water supply container through a circulation pump, thereby realizing the recycling of the water used for testing and avoiding water waste.

[0042] 4. The water collection tank is used to collect the water discharged during the water meter change process and discharge the water in time.

Claims

1. A water meter error measurement detection device, characterized by: It includes a water supply container, a water inlet pipe section, an intelligent variable frequency pump, a sample pipe section, an on-off control pipe section, a water outlet pipe section, a camera, a controller, and an electromagnetic flow meter. The water outlet of the water supply container is connected to the water inlet end of the water inlet pipe section. The water inlet pipe section is equipped with an intelligent variable frequency pump, the water outlet end of the water inlet pipe section is connected to the water inlet end of the sample pipe section, the sample pipe section is connected in series with several water meters, the water outlet end of the sample pipe section is connected to the water inlet end of the on-off control pipe section, the on-off control pipe section is equipped with an on-off control mechanism, and the water outlet end of the on-off control pipe section is connected to the water inlet end of the water outlet pipe section; A camera is fixedly connected to the outlet pipe section, and the camera is used to monitor the shape of the water flow at the outlet end of the outlet pipe section. An electromagnetic flow meter is provided on the outlet pipe section. The controller is electrically connected to the power supply and is electrically connected to the intelligent variable frequency pump, on-off control mechanism, camera, and electromagnetic flow meter through wires.

2. A water meter error measurement detection device according to claim 1, characterized in that: The water inlet pipe section is also provided with a water pressure sensor and a water temperature sensor, and the water pressure sensor and the water temperature sensor are electrically connected to the controller through wires respectively.

3. A water meter error measurement detection device according to claim 2, characterized in that: A water collecting trough is provided below the sample pipe section, the sample pipe section is connected to the water collecting trough through a bracket, and the water collecting trough is provided with a water collecting trough drain outlet.

4. A water meter error measurement detection device according to claim 3, characterized in that: The on-off control pipe section is provided with a ball valve, and the ball valve is equipped with a disc-shaped handle. The on-off control mechanism includes a stepping motor, a driving gear, and a driven gear. The outer edge of the disc-shaped handle is integrally formed with a driven gear. The output shaft of the stepping motor is fixedly connected to the driving gear, and the driving gear is meshed with the driven gear. The stepping motor is electrically connected to the controller.

5. A water meter error measurement detection device according to claim 4, characterized in that: A support platform is provided below the on-off control pipe section, and the stepping motor and the controller are fixedly connected to the support platform respectively.

6. A water meter error measurement detection device according to claim 5, characterized in that: A recovery water pool is provided below the water outlet pipe section. The recovery water pool is communicated with the water supply container through a connecting pipe, and a circulating pump is provided on the connecting pipe.

7. A water meter error measurement detection device according to claim 6, characterized in that: A liquid level sensor is provided in the recycling water pool, and the liquid level sensor and the circulation pump are electrically connected to the controller via wires.

8. A water meter error measurement detection device according to claim 7, characterized in that: The water supply container is equipped with a temperature control system.

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