Horizontal ultrasonic water meter testing device

Abstract

The utility model relates to the field of ultrasonic water meter testing equipment, and discloses a horizontal ultrasonic water meter testing device. The device comprises a clamping seat, a vacuum pump and an exhaust pipe, an exhaust port is formed in the clamping seat, one end of the exhaust pipe is connected with the exhaust port, the other end of the exhaust pipe is connected with an air suction port of the vacuum pump, the device further comprises a gas-water separator water tank, a mounting frame and a shielding shed, the gas-water separator water tank and the vacuum pump are arranged on the mounting frame, and the shielding shed covers the outer side of the mounting frame. A positioning plate and an adjusting assembly are arranged on the mounting frame to ensure that the vacuum pump is horizontally placed; according to the invention, the error of the detection result caused by air residue can be improved, and the accuracy of transducer detection is improved.

Description

Technical Field

[0001] This application relates to the technical field of ultrasonic water meter testing, and in particular to a horizontal ultrasonic water meter testing device. Background Technology

[0002] Ultrasonic water meters are high-precision flow measurement devices. To ensure the accuracy and reliability of ultrasonic water meters, they need to be rigorously tested and calibrated.

[0003] When testing a horizontal ultrasonic water meter, it needs to be sealed and pressurized to test the ultrasonic transducer. Specifically, during testing, the horizontal ultrasonic water meter is first placed on a testing frame. Then, a clamping cylinder drives a clamping seat to clamp and fix the horizontal ultrasonic water meter. The clamping seat has an exhaust port and is connected to a water inlet valve, an exhaust valve, and a pressure boosting valve. Next, water is introduced into the water meter to release air, and the exhaust valve is opened at this time. After the air is released, the water inlet valve and the exhaust valve are closed, and the pressure boosting valve is opened to pressurize the inside of the water meter until the pressure reaches the set pressure parameter. Then, the amplitude value and other parameters of the transducer in the water meter can be tested.

[0004] Regarding the aforementioned technologies, since horizontal ultrasonic water meters have multiple cavities inside, air can easily remain inside due to the water intake and exhaust process. This can affect the amplitude test results during subsequent testing, thereby affecting the accuracy of the transducer test results. Utility Model Content

[0005] To mitigate the errors caused by residual air in the test results and improve the accuracy of transducer testing, this application provides a horizontal ultrasonic water meter testing device.

[0006] This application provides a horizontal ultrasonic water meter testing device, which adopts the following technical solution:

[0007] A horizontal ultrasonic water meter testing device includes a clamping base with an exhaust port, a vacuum pump and an air extraction pipe. The vacuum pump has an air intake port, one end of the air extraction pipe is connected to the exhaust port, and the other end of the air extraction pipe is connected to the air intake port of the vacuum pump.

[0008] By adopting the above technical solution, the water meter is fixed by the clamp, and air is extracted from the exhaust port using a vacuum pump and an air extraction pipe, thereby fully expelling the air inside the water meter, avoiding the influence of residual air on the test results, and improving the accuracy of transducer testing.

[0009] Optionally, it also includes a gas-water separation tank, and the vacuum pump is also provided with an air outlet and a water inlet, both of which are connected to the gas-water separation tank.

[0010] By adopting the above technical solution, the gas and water vapor generated when the vacuum pump is working enter the gas-water separation tank through the gas outlet to achieve gas-water separation. At the same time, the water inlet can replenish the water in the tank, thereby improving the utilization rate of water resources.

[0011] Optionally, it also includes a mounting frame and a shield, with the gas-water separation tank and the vacuum pump both mounted on the mounting frame, and the shield covering the outside of the gas-water separation tank and the vacuum pump.

[0012] By adopting the above technical solution, the mounting frame is used to support the gas-water separation tank and the vacuum pump, while the shielding canopy covers the outside of both to provide protection and isolate the noise generated by the vacuum pump during operation.

[0013] Optionally, the mounting bracket is provided with a positioning plate, the vacuum pump is mounted on the positioning plate, and the mounting bracket is also provided with an adjustment component for adjusting the positioning plate to a horizontal state.

[0014] By adopting the above technical solution, the positioning plate is used to fix the vacuum pump, and the adjustment assembly keeps the positioning plate in a horizontal state by adjusting the height of the positioning screw and the adjustment seat.

[0015] Optionally, the adjustment assembly includes positioning screws and adjustment seats. Several positioning screws are provided on the mounting bracket. The adjustment seats are threadedly connected to the positioning screws, and the adjustment seats are arranged in a one-to-one correspondence with the positioning screws. The positioning plate has positioning holes for the positioning screws to slide through, and the positioning plate is disposed on the adjustment seats.

[0016] By adopting the above technical solution, the positioning plate is slidably set on the positioning screw through the positioning hole and supported by the adjusting seat. The positioning plate can be leveled by moving the adjusting seat up and down.

[0017] Optionally, the adjusting assembly further includes a locking nut, which is threaded onto the positioning screw and can abut against the upper surface of the positioning plate.

[0018] By adopting the above technical solution, the locking nut is threaded onto the positioning screw and abuts against the upper surface of the positioning plate to fix the position of the positioning plate, thereby enhancing the stability of the positioning plate and preventing it from shifting due to vibration or external force during the test.

[0019] Optionally, the canopy includes a canopy body and a folding door disposed on the canopy body. The folding door is disposed on two parallel sides of the canopy body, and the canopy body has sliding grooves on the upper and lower sides of the folding door for the folding door to slide.

[0020] By adopting the above technical solution, folding doors are installed on two parallel sides of the canopy, which can be slid open or closed, making it convenient for operators to enter the canopy for maintenance or adjustment.

[0021] Optionally, the folding door has a fixed side and a sliding side. The fixed side is fixed to the canopy. The canopy has a limiting groove for the sliding side of the folding door to be inserted into. The canopy has a fixing bolt and a threaded groove for the fixing bolt to be threaded into. The folding door also has a positioning groove for the fixing bolt to pass through. When the sliding side of the folding door is inserted into the limiting groove, the fixing bolt can pass through the threaded groove and the limiting groove in sequence.

[0022] By adopting the above technical solution, fixing bolts can easily secure folding doors.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. The clamping seat fixes the water meter, and the air is extracted from the exhaust port through the vacuum pump and air extraction pipe, so as to fully remove the air in the water meter, avoid the influence of residual air on the test results, and improve the accuracy of transducer test;

[0025] 2. The shield can protect the vacuum pump and also isolate the noise generated during its operation. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the installation structure of a vacuum pump;

[0028] Figure 3 This is a schematic diagram of the adjustment component;

[0029] Figure 4 This is a structural diagram of the canopy.

[0030] Explanation of reference numerals in the attached drawings: 1. Clamping seat; 11. Exhaust port; 2. Vacuum pump; 3. Suction pipe; 31. Inlet; 32. Outlet; 33. Water inlet; 4. Mounting frame; 5. Shelter; 51. Shelter body; 52. Folding door; 53. Fixing bolt; 6. Positioning plate; 7. Adjustment assembly; 71. Positioning screw; 72. Adjustment seat; 73. Locking nut; 8. Testing frame. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a horizontal ultrasonic water meter testing device. (Refer to...) Figure 1 and Figure 2 The testing device includes a testing frame 8, a clamping seat 1 disposed within the testing frame 8, and a clamping cylinder that drives the clamping seat 1 to clamp the horizontal ultrasonic water meter. During testing, both ends of the horizontal ultrasonic water meter are connected to the clamping seat 1 to control water intake or venting. The clamping seat 1 has an vent 11 and a corresponding vent valve (not shown in the figure) for opening or closing the vent.

[0033] Reference Figure 1 and Figure 2 Furthermore, in this embodiment, the testing device further includes a vacuum pump 2 and an air extraction pipe 3. The vacuum pump 2 is preferably a ring-type vacuum pump 2, which has an air intake port 31. One end of the air extraction pipe 3 is connected to the exhaust port 11, and the other end is connected to the vacuum intake port 31. Thus, by activating the air extraction pump, air inside the water meter can be effectively removed through the air extraction pipe 3, preventing residual air from affecting subsequent test results and improving test accuracy.

[0034] Reference Figure 1 and Figure 2 Furthermore, the testing device also includes a gas-water separation tank, and the vacuum pump 2 is equipped with an air outlet 32 ​​and a water inlet 33, both of which are connected to the gas-water separation tank. Specifically, the air outlet 32 ​​is connected to the upper end of the gas-water separation tank, and the water inlet 33 is connected to the lower end of the gas-water separation tank.

[0035] During operation, the impeller rotation of vacuum pump 2 causes the working fluid (water) to form a liquid ring concentric with the pump casing. This liquid ring and rotor blades create a periodically changing volume, achieving the processes of suction, compression, and exhaust. The discharged gas and water droplets enter the gas-water separator tank through the outlet 32. In the gas-water separator tank, the discharged gas and water are separated. The gas is discharged to the atmosphere through a pipe, while the water is treated and then reintroduced into the pump through the water inlet 33 to maintain the working fluid level and ensure the normal operation of the pump.

[0036] Reference Figure 1 and Figure 2 In this embodiment, since the vacuum pump 2 is installed outdoors, the testing device also includes a mounting frame 4 and a shielding canopy 5. The mounting frame 4 mainly serves a supporting function and is preferably made of steel to ensure its load-bearing capacity and stability. Both the vacuum pump 2 and the gas-water separator tank are mounted and fixed on the mounting frame 4. The shielding canopy 5 covers the outside of the gas-water separator tank and the annular vacuum pump 2, protecting the vacuum pump 2 and isolating it from noise during operation.

[0037] Reference Figure 2 and Figure 3 In an optional embodiment, the mounting bracket 4 is provided with a positioning plate 6, which can be a rectangular plate. The vacuum pump 2 is fixed to the upper surface of the positioning plate 6 by bolts or other means. The mounting bracket 4 is also provided with an adjustment component 7 for adjusting the positioning plate 6 to a horizontal state. When the ground is uneven, the positioning plate 6 can be adjusted to a horizontal state by adjusting the adjustment component 7, that is, the vacuum pump 2 can be adjusted to a horizontal state.

[0038] Reference Figure 2 and Figure 3 The adjustment assembly 7 includes positioning screws 71 and adjustment seats 72. Positioning screws 71 are fixed to the upper surface of the mounting frame 4 by welding or other methods, and several are provided on the mounting frame 4. In this embodiment, four positioning screws 71 are fixed to the upper surface of the mounting frame 4 and are distributed in a rectangular shape. Four adjustment seats 72 are provided corresponding to the positioning screws 71. Each adjustment seat 72 has a through hole coaxially formed, through which the positioning screws 71 can pass and be threadedly connected to the adjustment seat 72. Positioning plates 6 also have positioning holes corresponding to the positioning screws 71, allowing the positioning plates 6 to slide up and down on the positioning screws 71. Simultaneously, the positioning plates 6 can abut against the upper surface of the adjustment seats 72. The position of the positioning plates 6 can be adjusted up and down by moving the adjustment seats 72. It should be noted that, for the positioning plates 6 to slide up and down, the inner diameter of the positioning hole can be slightly larger than the outer diameter of the positioning screws 71.

[0039] Furthermore, the adjusting seat 72 includes two coaxially connected rings, namely a first ring located above and a second ring located below. In use, the positioning plate 6 abuts against the upper surface of the first ring. The diameter of the first ring is smaller than that of the second ring. When controlling the rotation of the adjusting seat 72, force can be applied through the second ring. The first ring mainly serves to create a gap between the second ring and the positioning plate 6, making it easier to grip the second ring. The outer wall of the second ring is preferably provided with anti-slip texture, or an anti-slip ring made of rubber or plastic can be fixed to the outer side of the second ring.

[0040] Reference Figure 2 and Figure 3 In an optional embodiment, the adjusting assembly 7 further includes a locking nut 73, which is threaded onto the positioning screw 71 and abuts against the upper surface of the positioning plate 6. The locking nut 73 secures the positioning plate 6 to the adjusting seat 72, thereby increasing the stability of the positioning plate 6 and the vacuum pump 2. A spring washer is provided between the locking nut 73 and the positioning screw 71 to enhance the locking effect. It should be noted that when the adjusting seat 72 needs to be moved up and down to adjust the positioning plate 6 to a horizontal position, the locking nut 73 should first be rotated upwards to create some space before rotating the adjusting seat 72; after adjustment, the locking nut 73 should then be rotated downwards to press against the positioning plate 6.

[0041] Reference Figure 1 and Figure 4 In this embodiment, the canopy 5 includes a canopy body 51 and a folding door 52. The canopy body 51 mainly includes two side panels and a top cover, which can be made of waterproof material to prevent rainwater intrusion. The folding door 52 is respectively provided on the front and rear sides of the canopy body 51 to facilitate the maintenance of equipment installed inside the canopy body 51. The canopy body 51 has sliding grooves on both the upper and lower sides of the folding door 52 to maintain the stability of the folding door 52 when it slides.

[0042] Reference Figure 1 and Figure 4 Specifically, the folding door 52 has a fixed side and a sliding side. The fixed side is fixedly connected to the side wall of the canopy 51, and the sliding side can slide along the length of the canopy 51 to open or close the canopy 5. The canopy 51 has a limiting groove for the sliding side of the folding door 52 to insert into, and a fixing bolt 53 is also provided on the canopy 51 for locking the folding door 52. The canopy 51 has a threaded groove for the fixing bolt 53 to be threaded into, and the folding door 52 also has a positioning groove for the fixing bolt 53 to pass through. When the sliding side of the folding door 52 is inserted into the limiting groove, the fixing bolt 53 can pass through the threaded groove and the limiting groove in sequence, thereby restricting the folding door 52 from sliding further and locking it in place. To facilitate pushing and pulling the folding door 52, a door handle can be fixed to the outer side wall of the folding door 52.

[0043] The implementation principle of the horizontal ultrasonic water meter testing device in this application embodiment is as follows: The horizontal ultrasonic water meter is firmly fixed by the clamping seat 1 to ensure that it will not move during the testing process. Before draining water into the water meter, the vacuum pump 2 is turned on, and air is extracted from the water meter through the exhaust port 11 of the clamping seat 1 via the air extraction pipe 3, effectively removing residual gas from the water meter; after venting, water is injected into the water meter. This can reduce the influence of residual air on the transducer amplitude value test results during subsequent pressurization testing, thereby improving the accuracy and reliability of the test. At the same time, the mounting bracket 4 and positioning plate 6 are set to install the vacuum pump 2 and adjust the vacuum pump 2 to a horizontal state; the shielding canopy 5 can protect the vacuum pump 2 and reduce the noise generated by the vacuum pump 2 during operation.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A horizontal ultrasonic water meter testing apparatus, characterized by: The device includes a clamping seat (1) with an exhaust port (11), a vacuum pump (2) and a suction pipe (3). The vacuum pump (2) has an intake port (31). One end of the suction pipe (3) is connected to the exhaust port (11), and the other end of the suction pipe (3) is connected to the intake port (31) of the vacuum pump (2).

2. The horizontal ultrasonic water meter testing device of claim 1, wherein: It also includes a gas-water separation tank. The vacuum pump (2) is also provided with an air outlet (32) and a water inlet (33). The air outlet (32) and the water inlet (33) are both connected to the gas-water separation tank.

3. A horizontal ultrasonic water meter testing apparatus as defined in claim 2, wherein: It also includes a mounting frame (4) and a shield (5), the gas-water separation tank and the vacuum pump (2) are both mounted on the mounting frame (4), and the shield (5) covers the outside of the gas-water separation tank and the vacuum pump (2).

4. A horizontal ultrasonic water meter testing apparatus as claimed in claim 3, wherein: The mounting bracket (4) is provided with a positioning plate (6), the vacuum pump (2) is provided on the positioning plate (6), and the mounting bracket (4) is also provided with an adjustment component (7) for adjusting the positioning plate (6) to a horizontal state.

5. A horizontal ultrasonic water meter testing apparatus as claimed in claim 4, wherein: The adjustment assembly (7) includes a positioning screw (71) and an adjustment seat (72). Several positioning screws (71) are provided on the mounting bracket (4). The adjustment seat (72) is threaded to the positioning screw (71), and the adjustment seat (72) is provided in a one-to-one correspondence with the positioning screw (71). The positioning plate (6) is provided with a positioning hole for the positioning screw (71) to slide through. The positioning plate (6) is provided on the adjustment seat (72).

6. A horizontal ultrasonic water meter testing apparatus as claimed in claim 5, wherein: The adjustment assembly (7) also includes a locking nut (73), which is threaded onto the positioning screw (71) and can abut against the upper surface of the positioning plate (6).

7. A horizontal ultrasonic water meter testing apparatus as claimed in claim 6, wherein: The canopy (5) includes a canopy body (51) and a folding door (52) disposed on the canopy body (51). The folding door (52) is disposed on two parallel sides of the canopy body (51). The canopy body (51) has sliding grooves on both the upper and lower sides of the folding door (52) for the folding door (52) to slide.

8. A horizontal ultrasonic water meter testing apparatus according to claim 7, wherein: The folding door (52) has a fixed side and a sliding side. The fixed side is fixed to the canopy (51). The canopy (51) has a limiting groove for the sliding side of the folding door (52) to be inserted into. The canopy (51) is provided with a fixing bolt (53) and a threaded groove for the fixing bolt (53) to be threadedly connected. The folding door (52) also has a positioning groove for the fixing bolt (53) to pass through. When the sliding side of the folding door (52) is inserted into the limiting groove, the fixing bolt (53) can pass through the threaded groove and the limiting groove in sequence.

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