Water meter flow line error automatic detection system

Abstract

The application relates to the technical field of flow measurement, and discloses a water meter flow pipeline error automatic detection system. Medium water for detection is received through a water inlet valve of a diaphragm tank, the medium water for detection flows to a liquid inlet pipe through a water outlet valve, a power pump pressurizes the medium water, when a stop valve is opened, the medium water can flow into a drainage pipe, a first water meter to be detected between the drainage pipe and a flow guide pipe accounts for the flow of the medium water flowing through the first water meter, and the medium water flowing between the stop valve and the drainage pipe is also preliminarily displayed in a flow indicator. Since 1 liter of water is 1 kg under standard atmospheric pressure and temperature, the value of a weight scale can be obtained, the value of the medium water volume, that is, the value of the flow, can be obtained, and thus the water meter flow automatic detection is realized. Through actual measurement values of the flow indicator, conversion values of the first weight scale or the second weight scale, the test accuracy can be improved.

Description

Technical Field

[0001] This utility model relates to an automatic error detection system for water meter flow lines, belonging to the field of flow measurement technology. Background Technology

[0002] Water meters need to be tested before leaving the factory, and the test focuses on the accuracy of the water flow rate measurement. Traditional water meter accuracy testing devices rely on a flow pump to generate pressure on the fluid medium, causing it to flow through the water meter under test. The accuracy of the flow rate measurement is determined by the change in the amount of fluid flow and the meter reading. The change in fluid flow is generally the weight of the fluid medium. Traditional water meter quality testing devices often use a single measuring scale to measure the change in the weight of the fluid medium. Because a single measuring scale lacks a reference, it is prone to measurement errors, resulting in low accuracy in water meter flow rate measurement. Therefore, it is necessary to address the low accuracy of traditional water meter accuracy testing devices by proposing an automatic error detection system for water meter flow lines. Utility Model Content

[0003] This application provides an automatic detection system for water meter flow line errors, which can solve the problem of low accuracy in water meter flow measurement testing.

[0004] This application provides an automatic detection system for water meter flow line errors, comprising: A diaphragm tank includes a tank body, the tank body being provided with an inlet valve and an outlet valve, the inlet valve being located at the top of the tank body and the outlet valve being located at the bottom of the tank body; A power pump is provided with an inlet pipe, an outlet pipe and a shut-off valve. The inlet pipe of the power pump is connected to the outlet valve, and the outlet pipe of the power pump is connected to the shut-off valve. The measuring frame includes a drain pipe, a guide pipe, and a support. The outer wall of the drain pipe is fixedly connected to the support. The drain pipe is in communication with the shut-off valve. The outer wall of the guide pipe is fixedly connected to the support. A first water meter to be tested is connected between the drain pipe and the guide pipe. The weighing device includes a commutator, a first volumetric tank, and a second volumetric tank. The liquid inlet of the commutator is connected to the guide pipe, the first liquid outlet of the commutator is connected to the first volumetric tank, and the second liquid outlet of the commutator is connected to the second volumetric tank. The bottom of the first volumetric tank is placed on the first weighing scale, and the bottom of the second volumetric tank is placed on the second weighing scale. A flow indicator is disposed between the shut-off valve and the drain pipe; An image acquisition device is mounted at the top of the bracket.

[0005] This application relates to an automatic error detection system for water meter flow lines. The system receives detection medium water through the inlet valve of a diaphragm tank. The detection medium water flows through the outlet valve to the inlet pipe. A power pump pressurizes the medium water. When the shut-off valve opens, the medium water can flow into the diversion pipe. The first water meter to be tested, located between the diversion pipe and the guide pipe, measures the flow rate of the medium water flowing through its own meter. The flow rate of the medium water flowing between the shut-off valve and the diversion pipe is also initially displayed on the flow indicator. When the medium water flows through the guide pipe, it enters a reversing device. When the medium water flow rate is low, the reversing device guides the medium water to a first volumetric tank. A first weighing scale weighs the incoming medium water. When the medium water flow rate is large, the commutator guides the medium water to the second volume tank. The second weighing scale weighs the incoming medium water. Since 1 liter of water is 1 kilogram under standard atmospheric pressure and temperature, the value obtained from the weighing scale can be used to obtain the value of the medium water volume, i.e., the flow rate. This realizes automatic detection of water meter flow rate. By using the actual measured value of the flow indicator and the converted value of the first or second weighing scale, the accuracy of the test can be improved. The image acquisition device can collect the data information of the first water meter to be tested. After the image acquisition device collects the water meter information, it sends the information to the host computer for storage, realizing the coupling of the test results and the water meter information. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a diaphragm tank, power pump, measuring frame, and weighing device in an embodiment of the present invention for an automatic error detection system for a water meter production line. Figure 2 This is a schematic diagram of the measuring frame and connecting platform of an automatic error detection system for a water meter production line according to one embodiment of the present invention; Figure 3 This is a schematic diagram of an accessory frame for an automatic error detection system for a water meter production line according to one embodiment of the present invention; Figure 4 This is a schematic diagram of a diaphragm tank, power pump, measuring frame, weighing device, and auxiliary frame of an automatic error detection system for a water meter production line according to one embodiment of the present invention.

[0007] Figure label: 100-Diaphragm tank; 110-Tank body; 120-Inlet valve; 130-Outlet valve; 200-Power pump; 210-Liquid inlet pipe; 220 - Discharge pipe; 230 - Shut-off valve; 300 - Measuring frame; 310 - Drainage pipe; 311 - First external threaded connection; 312 - First nut; 320 - Guide tube; 321 - Second external threaded connection; 322 - Second nut; 330 - Bracket; 340 - Connecting platform; 341 - Circular plate; 342 - Support plate; 343 - Rectangular hole; 344 - Fill light; 350 - Attached frame; 360 - First lead tube; 361 - Third external threaded connection; 362 - Third nut; 370 - Second lead tube; 371-Fourth external thread connection; 372-Fourth nut; 380-Support frame; 400-Weighing device; 410-Commutator; 420 - First volumetric tank; 430 - Second volumetric tank; 440 - First weighing scale; 450 - Second weighing scale; 500 - Flow indicator; 600 - Image acquisition unit; 710 - Pressure transmitter; 720 - Temperature transmitter; 730 - Bypass device; 740 - Drain valve. Detailed Implementation

[0008] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0009] like Figure 1 As shown, the water meter production line error automatic detection system provided by this utility model includes a diaphragm tank 100, a power pump 200, a measuring frame 300, a weighing device 400, a flow indicator 500, and an image acquisition device 600.

[0010] The diaphragm tank 100 includes a tank body 110, which is provided with an inlet valve 120 and an outlet valve 130. The inlet valve 120 is located at the top of the tank body 110, and the outlet valve 130 is located at the bottom of the tank body 110.

[0011] The power pump 200 is provided with an inlet pipe 210, an outlet pipe 220 and a shut-off valve 230. The inlet pipe 210 of the power pump 200 is connected to the outlet valve 130, and the outlet pipe 220 of the power pump 200 is connected to the shut-off valve 230.

[0012] The measuring frame 300 includes a drain pipe 310, a guide pipe 320, and a support 330. The outer wall of the drain pipe 310 is fixedly connected to the support 330. The drain pipe 310 is in communication with the shut-off valve 230. The outer wall of the guide pipe 320 is fixedly connected to the support 330. A first water meter to be tested is connected between the drain pipe 310 and the guide pipe 320.

[0013] The weighing device 400 includes a commutator 410, a first volumetric tank 420, and a second volumetric tank 430. The liquid inlet of the commutator 410 is connected to the guide pipe 320, the first liquid outlet of the commutator 410 is connected to the first volumetric tank 420, and the second liquid outlet of the commutator 410 is connected to the second volumetric tank 430. The bottom of the first volumetric tank 420 is placed on a first weighing scale 440, and the bottom of the second volumetric tank 430 is placed on a second weighing scale 450.

[0014] The flow indicator 500 is disposed between the shut-off valve 230 and the drain pipe 310.

[0015] The image acquisition device 600 is mounted on the top of the bracket 330.

[0016] This application relates to an automatic detection system for water meter flow line errors. The system receives detection medium water through the inlet valve 120 of the diaphragm tank 100. The detection medium water flows to the inlet pipe 210 through the outlet valve 130. The power pump 200 pressurizes the medium water. When the shut-off valve 230 opens, the medium water can flow into the diversion pipe 310. The first water meter to be tested, located between the diversion pipe 310 and the guide pipe 320, measures the flow rate of the medium water flowing through its own meter. The flow rate of the medium water flowing between the shut-off valve 230 and the diversion pipe 310 is also initially displayed in the flow indicator 500. When the medium water flows through the guide pipe 320, it enters the commutator 410. When the medium water flow rate is low, the commutator 410 guides the medium water to the first volumetric tank 420. Weighing scale 440 weighs the incoming medium water. When the medium water flow rate is large, commutator 410 guides the medium water to the second volume tank 430. The second weighing scale 450 weighs the incoming medium water. Since 1 liter of water is 1 kilogram under standard atmospheric pressure and temperature, the value obtained from the weighing scale can be used to obtain the volume of the medium water, i.e., the flow rate, thus realizing automatic detection of water meter flow. The accuracy of the test can be improved by using the actual measurement value of the flow indicator 500 and the conversion value of the first weighing scale 440 or the second weighing scale 450. The image acquisition device 600 can collect the data information of the first water meter to be tested. After the image acquisition device 600 collects the water meter information, it sends the information to the host computer for storage, realizing the coupling of the test results and the water meter information.

[0017] like Figure 2As shown, in one embodiment of this application, the drain pipe 310 is provided with a first external threaded connection portion 311. The first external threaded connection portion 311 is located away from the shut-off valve 230. A first nut 312 is connected to the first external threaded connection portion 311. The guide pipe 320 is provided with a second external threaded connection portion 321. The second external threaded connection portion 321 is located close to the shut-off valve 230. A second nut 322 is connected to the second external threaded connection portion 321. The first nut 312 is connected to one end of the first water meter to be tested. The second nut 322 is connected to the other end of the first water meter to be tested.

[0018] In this embodiment, the first external threaded connection 311 is located away from the shut-off valve 230 and is located at the port of the diversion pipe 310. The second external threaded connection 321 is located near the shut-off valve 230 and is located at the port of the diversion pipe 320. The first water meter to be tested is located in the space between the first external threaded connection 311 and the second external threaded connection 321.

[0019] The first nut 312 is connected to the first external threaded connection part 311. One end of the first water meter to be tested abuts against the end of the first external threaded connection part 311. The first nut 312 is threadedly connected to the abutting part between the one end of the first water meter to be tested and the first external threaded connection part 311. The one end of the first water meter to be tested can be quickly connected and disconnected through the first external threaded connection part 311 and the first nut 312.

[0020] The second nut 322 is connected to the second external threaded connection part 321. The other end of the first water meter to be tested abuts against the end of the second external threaded connection part 321. The second nut 322 is threadedly connected to the abutting part of the other end of the first water meter to be tested and the second external threaded connection part 321. The other end of the first water meter to be tested can be quickly connected and disconnected through the second external threaded connection part 321 and the second nut 322.

[0021] like Figure 2 As shown in one embodiment of this application, the bracket 330 is provided with a connecting platform 340. The connecting platform 340 includes a circular plate 341 and a support plate 342. The circular plate 341 is provided with a rectangular hole 343. The circular plate 341 is fixedly connected to the support plate 342. The support plate 342 is fixedly connected to the top end of the bracket 330. The image acquisition device 600 is placed inside the rectangular hole 343.

[0022] Understandably, the bracket 330 uses the connecting platform 340 to hold the image acquisition device 600. The connecting platform 340 consists of a circular plate 341 and a support plate 342. The support plate 342 supports the circular plate 341 on top of the first water meter to be tested. The circular plate 341 and the support plate 342 are set perpendicular to each other. The rectangular hole 343 in the middle of the circular plate 341 is used to hold the image acquisition device 600. The rectangular hole 343 can conduct the top and bottom of the circular plate 341 to each other.

[0023] The support plate 342 is positioned between the circular plate 341 and the bracket 330, which allows the circular plate 341 and the first water meter to be tested to be separated by the focal length required by the image acquisition device 600, which is beneficial for the image acquisition device 600 to clearly image the first water meter to be tested.

[0024] like Figure 2 As shown, in one embodiment of this application, the circular plate 341 is provided with a supplementary light 344. The supplementary light 344 is positioned close to the first water meter to be tested.

[0025] Understandably, during the batch testing of water meters, there are often situations where the light is blocked or the light intensity is weak. In order to improve the efficiency of the image acquisition unit 600 in acquiring water meter images and reduce environmental interference in weak light intensity, a supplementary light lamp 344 is set at the bottom of the circular plate 341. The supplementary light lamp 344 can provide supplementary light for the first water meter to be tested, preventing the omission of water meter detection information.

[0026] like Figure 3 As shown in one embodiment of this application, the automatic detection system for water meter flow line errors further includes multiple auxiliary frames 350. Each auxiliary frame 350 has the same structure. Each auxiliary frame 350 includes a first lead pipe 360, a second lead pipe 370, and a support frame 380. The outer wall of the first lead pipe 360 ​​is fixedly connected to the support frame 380. The outer wall of the second lead pipe 370 is fixedly connected to the support frame 380. A second water meter to be tested is connected between the first lead pipe 360 ​​and the second lead pipe 370.

[0027] Understandably, each auxiliary frame 350 has the same structure. The auxiliary frame 350 is used to fix and support other second water meters to be tested. Both the first water meter to be tested and the second water meter to be tested are water meters to be tested. The auxiliary frame 350 consists of a first lead pipe 360, a second lead pipe 370 and a support frame 380. The structure of the auxiliary frame 350 is the same as that of the measuring frame 300.

[0028] Simply put, one end of the first inlet pipe 360 ​​of the auxiliary frame 350 adjacent to the measuring frame 300 can be connected to the guide pipe 320. The other end of the first inlet pipe 360 ​​can be connected to one end of the second water meter to be tested. One end of the second inlet pipe 370 can be connected to the other end of the second water meter to be tested. The other end of the second inlet pipe 370 can be connected to the first inlet pipe 360 ​​of the adjacent auxiliary frame 350.

[0029] Between adjacent accessory frames 350, the second lead tube 370 of the accessory frame 350 closer to the measuring frame 300 is connected to the first lead tube 360 ​​of the accessory frame 350 farther from the measuring frame 300.

[0030] The second inlet tube 370 of the accessory bracket 350 near the commutator 410 is in communication with the liquid inlet end of the commutator 410.

[0031] like Figure 4 As shown, in one embodiment of this application, the accessory bracket 350 is disposed between the guide pipe 320 and the commutator 410. Each accessory bracket 350 is sequentially interconnected.

[0032] In this embodiment, each accessory frame 350 is sequentially interconnected, and the first lead pipe 360 ​​and the second lead pipe 370 of the same accessory frame 350 are connected to a second water meter to be tested.

[0033] The first inlet tube 360 ​​and the second inlet tube 370 of the adjacent accessory frame 350 are connected in series to form a series fluid medium channel.

[0034] like Figure 3 As shown, in one embodiment of this application, the first lead pipe 360 ​​is provided with a third external threaded connection portion 361. The third external threaded connection portion 361 is located away from the shut-off valve 230. The third external threaded connection portion 361 is connected to a third nut 362. The second lead pipe 370 is provided with a fourth external threaded connection portion 371. The fourth external threaded connection portion 371 is located close to the shut-off valve 230. The fourth external threaded connection portion 371 is connected to a fourth nut 372. The third nut 362 is connected to one end of the second water meter to be tested. The fourth nut 372 is connected to the other end of the second water meter to be tested.

[0035] Understandably, the third external threaded connection 361 is located away from the shut-off valve 230 and is located at the port of the first lead pipe 360. The fourth external threaded connection 371 is close to the shut-off valve 230 and is located at the port of the second lead pipe 370. The second water meter to be tested is located in the space between the third external threaded connection 361 and the fourth external threaded connection 371.

[0036] The third nut 362 is connected to the third external thread connection part 361. One end of the second water meter to be tested abuts against the end of the third external thread connection part 361. The third nut 362 is threadedly connected to the abutting part between the one end of the second water meter to be tested and the third external thread connection part 361. The one end of the second water meter to be tested can be quickly connected and disconnected through the third external thread connection part 361 and the third nut 362.

[0037] The fourth nut 372 is connected to the fourth external thread connection part 371. The other end of the second water meter to be tested abuts against the end of the fourth external thread connection part 371. The fourth nut 372 is threadedly connected to the abutting part of the other end of the second water meter to be tested and the fourth external thread connection part 371. The other end of the second water meter to be tested can be quickly connected and disconnected through the fourth external thread connection part 371 and the fourth nut 372.

[0038] like Figure 4 As shown, in one embodiment of this application, a pressure transmitter 710 is provided between the shut-off valve 230 and the drain pipe 310. A temperature transmitter 720 is provided between the second drain pipe 370 and the commutator 410.

[0039] Understandably, the pressure transmitter 710 receives the pressure of the environment in which the fluid medium is located. When the pressure transmitter 710 receives the pressure of the environment in which the fluid medium is located, it will generate a first warning level signal. The temperature transmitter 720 receives the temperature of the fluid medium. When the temperature transmitter 720 receives the temperature of the fluid medium, it will generate a second warning level signal. This ensures that 1 liter of water is 1 kilogram under standard air pressure and temperature. Therefore, by obtaining the value of the weighing scale, the volume of the medium water can be obtained, which is the flow rate.

[0040] like Figure 4 As shown in one embodiment of this application, the automatic detection system for water meter flow line error further includes a bypass 730. The third liquid outlet of the commutator 410 is connected to the bypass 730.

[0041] In this embodiment, when the water meter flow line error automatic detection system is in the test state, the fluid medium pressure of the entire test pipeline is unstable. When the power pump 200 is turned on, the fluid medium with unstable pressure can be guided to the bypass 730 through the commutator 410.

[0042] When the test needs to be paused or stopped, the fluid medium can be directed to the bypass 730 using the commutator 410, and then the power pump 200 can be stopped steadily.

[0043] like Figure 4As shown, in one embodiment of this application, the bypass 730 is connected to a drain valve 740. The drain valve 740 is disposed near the bottom of the bypass 730.

[0044] In this embodiment, when the bypass 730 is used as a waste liquid storage device and is filled with fluid medium, the drain valve 740 at the bottom of the bypass 730 can be opened to discharge the waste liquid in the bypass 730 through the drain valve 740.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. An automatic error detection system for water meter production lines, characterized in that, include: A diaphragm tank includes a tank body, the tank body being provided with an inlet valve and an outlet valve, the inlet valve being located at the top of the tank body and the outlet valve being located at the bottom of the tank body; A power pump is provided with an inlet pipe, an outlet pipe and a shut-off valve. The inlet pipe of the power pump is connected to the outlet valve, and the outlet pipe of the power pump is connected to the shut-off valve. The measuring frame includes a drain pipe, a guide pipe, and a support. The outer wall of the drain pipe is fixedly connected to the support. The drain pipe is in communication with the shut-off valve. The outer wall of the guide pipe is fixedly connected to the support. A first water meter to be tested is connected between the drain pipe and the guide pipe. The weighing device includes a commutator, a first volumetric tank, and a second volumetric tank. The liquid inlet of the commutator is connected to the guide pipe, the first liquid outlet of the commutator is connected to the first volumetric tank, and the second liquid outlet of the commutator is connected to the second volumetric tank. The bottom of the first volumetric tank is placed on the first weighing scale, and the bottom of the second volumetric tank is placed on the second weighing scale. A flow indicator is disposed between the shut-off valve and the drain pipe; An image acquisition device is mounted at the top of the bracket.

2. The automatic error detection system for water meter production lines according to claim 1, characterized in that, The drainage tube is provided with a first external threaded connection part; The first external threaded connection portion is located away from the shut-off valve; The first external threaded connection part is connected to the first nut; The guide tube is provided with a second external threaded connection part; The second external threaded connection is located near the shut-off valve; The second external threaded connection is connected to a second nut; The first nut is connected to one end of the first water meter to be tested; The second nut is connected to the other end of the first water meter to be tested.

3. The automatic error detection system for water meter production lines according to claim 2, characterized in that, The bracket is equipped with a connecting platform; The connecting platform includes a circular plate and a support plate; The circular plate is provided with rectangular holes; The circular plate is fixedly connected to the support plate; The support plate is fixedly connected to the top of the bracket; The image acquisition device is placed inside the rectangular hole.

4. The automatic error detection system for water meter production lines according to claim 3, characterized in that, The circular plate is equipped with a supplementary light; The supplementary light is positioned close to the first water meter to be tested.

5. The automatic error detection system for water meter production lines according to claim 4, characterized in that, The automatic error detection system for water meter production lines also includes multiple auxiliary racks; Each of the attached frames has the same structure; The attached frame includes a first guide tube, a second guide tube, and a support frame; The outer wall of the first lead tube is fixedly connected to the support frame; The outer wall of the second lead tube is fixedly connected to the support frame; A second water meter to be tested is connected between the first inlet pipe and the second inlet pipe.

6. The automatic error detection system for water meter production lines according to claim 5, characterized in that, The accessory frame is disposed between the guide tube and the commutator; Each of the attached frames is sequentially interconnected.

7. The automatic error detection system for water meter production lines according to claim 6, characterized in that, The first lead tube is provided with a third external threaded connection part; The third external threaded connection is located away from the shut-off valve; The third external threaded connection is connected to a third nut; The second lead tube is provided with a fourth external threaded connection part; The fourth external threaded connection is located near the shut-off valve; The fourth external threaded connection is connected to a fourth nut; The third nut is connected to one end of the second water meter to be tested; The fourth nut is connected to the other end of the second water meter to be tested.

8. The automatic error detection system for water meter production lines according to claim 7, characterized in that, A pressure transmitter is installed between the shut-off valve and the drain pipe; A temperature transmitter is installed between the second lead pipe and the commutator.

9. The automatic error detection system for water meter production lines according to claim 8, characterized in that, The automatic error detection system for water meter production lines also includes a bypass device; The third liquid outlet of the commutator is connected to the bypass.

10. The automatic error detection system for water meter flow lines according to claim 9, characterized in that, The bypass is connected to a drain valve; The drain valve is located near the bottom of the bypass.

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