Pressure test device for gas ultrasonic flowmeter

Abstract

The utility model provides a pressure test device for a gas ultrasonic flowmeter. The pressure test device for the gas ultrasonic flowmeter comprises a test platform, a supporting piece, a pressurizing mechanism, a sealing plate and a jacking piece. When the pressure test device for the gas ultrasonic flowmeter is used, a flange at one end of the gas ultrasonic flowmeter can be placed on the supporting disc at the top of the supporting piece, a sealing ring is placed at the other end of the gas ultrasonic flowmeter, and then the gas ultrasonic flowmeter is tightly pressed between the sealing plate and the supporting piece through the sealing plate. And finally, pressurizing the interior of the gas ultrasonic flowmeter through a pressurizing pipe by virtue of a pressurizing mechanism to carry out a pressure-resistant test. Through the design of the supporting piece, the gas ultrasonic flow meter can be suspended above the bottom plate of the test platform, interference between a display module or other modules on the gas ultrasonic flow meter and the bottom plate is avoided, and pressure resistance tests can be carried out on the gas ultrasonic flow meters of different models.

Description

Technical Field

[0001] This utility model belongs to the field of flow meter testing technology, specifically relating to a pressure resistance test device for a gas ultrasonic flow meter. Background Technology

[0002] After assembly, gas flow meters require a pressure test to ensure they meet the pressure requirements of future use and operate stably. Currently, the flow meter is typically sealed at both ends, and then pressurized internally using a pressurizing device for a sustained period to perform the pressure test. However, some gas flow meters have external display modules or other monitoring modules that protrude from the end of the flow meter, preventing it from being mounted on the test platform and hindering the pressure test. Utility Model Content

[0003] This utility model provides a gas ultrasonic flow meter pressure resistance test device, which aims to solve the problem in the prior art that the test platform of the gas flow meter pressure resistance test device is prone to interference with the display module on the gas flow meter, affecting the pressure resistance test.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pressure resistance testing device for a gas ultrasonic flowmeter, comprising:

[0005] A test platform, on which a base plate is mounted, and a pressure pipe is installed on the base plate;

[0006] A support member is installed on the top surface of the base plate. The middle part of the support member is provided with a through hole communicating with the pressurization pipe. A support plate is fixedly installed on the top of the support member. A first sealing ring is provided on the top surface of the support plate.

[0007] A pressurizing mechanism, installed on one side of the test platform, is used to pressurize the inside of the pressurizing tube;

[0008] A sealing plate is installed on the test platform and is located directly above the support member;

[0009] A clamping element, installed on the test platform, is used to press the ultrasonic gas flow meter onto the support element.

[0010] In one possible implementation, the support member is detachably mounted on the base plate, and the sealing plate is detachably mounted on the drive end of the clamping member.

[0011] In one possible implementation, the bottom end of the support member is provided with a positioning plate, the base plate is recessed with a positioning groove that slides with the positioning plate, and the bottom of the positioning groove is provided with a second sealing ring.

[0012] In one possible implementation, a guide post is fixedly installed at the bottom of the positioning disk, and a guide hole that slides with the guide post is also provided on the base plate.

[0013] In one possible implementation, a mounting plate is fixedly mounted on the top of the base plate, and the positioning groove is located on the mounting plate.

[0014] In one possible implementation, the mounting plate is further equipped with a pressure plate for positioning the positioning plate onto the mounting plate, and the mounting plate is threadedly connected with a clamping member for pressing the pressure plate onto the positioning plate.

[0015] In one possible implementation, the two ends of the pressure plate are inclined toward the positioning plate and the mounting plate, and the clamping member abuts against the middle of the pressure plate.

[0016] In one possible implementation, a sleeve for fitting onto the drive end of the clamping member is fixedly mounted on the sealing plate, and a fastener for abutting against the drive end of the clamping member is threaded onto the side wall of the sleeve.

[0017] In one possible implementation, a pressure gauge for detecting the internal pressure of the pressure tube is installed on the pressure tube.

[0018] The solution shown in this application, compared with the prior art, involves setting up a test platform, on which a base plate is fixedly installed, and a pressure pipe is installed at the bottom of the base plate. A support member is installed above the base plate, and a support plate adapted to the size of the end flange of the ultrasonic gas flow meter is installed on the top of the support member, with a first sealing ring installed on the top of the support plate. The middle of the support member is a through hole, and when the support member is installed on the base plate, the through hole on the support member is interconnected with the pressure pipe. A sealing plate is also installed above the support member, and the sealing plate moves up and down driven by a clamping member. In use, one end flange of the ultrasonic gas flow meter can be placed on the support plate on top of the support member, and a sealing ring can be placed on the other end. The ultrasonic gas flow meter is then pressed between the sealing plate and the support member by the sealing plate. Finally, a pressure test is conducted by pressurizing the ultrasonic gas flow meter through the pressure pipe using a pressurizing mechanism. The design of the support components allows the ultrasonic gas flow meter to be suspended between the base plates, preventing interference between the display module or other modules on the ultrasonic gas flow meter and the base plate. This also allows for pressure resistance tests on different models of ultrasonic gas flow meters. Attached Figure Description

[0019] Figure 1 A schematic diagram of the gas ultrasonic flowmeter pressure resistance test device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the support member provided in an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Test platform; 11. Base plate; 12. Pressure pipe; 13. Second sealing ring; 2. Support component; 21. Support plate; 22. First sealing ring; 23. Positioning plate; 24. Guide column; 3. Pressure mechanism; 31. Pressure gauge; 4. Sealing plate; 41. Sleeve; 42. Fastener; 5. Tightening component; 6. Mounting plate; 7. Pressure plate; 71. Clamping component. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Please refer to the following: Figure 1 and Figure 2 The present invention provides a pressure resistance testing device for a gas ultrasonic flowmeter. The device includes a test platform 1, a support member 2, a pressurizing mechanism 3, a sealing plate 4, and a clamping member 5. A base plate 11 is mounted on the test platform 1, and a pressurizing pipe 12 is mounted on the base plate 11. The support member 2 is mounted on the top surface of the base plate 11, and has a through hole in its middle that communicates with the pressurizing pipe 12. A support plate 21 is fixedly mounted on the top of the support member 2, and a first sealing ring 22 is provided on the top surface of the support plate 21. The pressurizing mechanism 3 is mounted on one side of the test platform 1 and is used to pressurize the inside of the pressurizing pipe 12. The sealing plate 4 is mounted on the test platform 1 and is located directly above the support member 2. The clamping member 5 is mounted on the test platform 1 and is used to press the gas ultrasonic flowmeter firmly onto the support member 2.

[0025] The gas ultrasonic flowmeter pressure resistance test device provided in this embodiment, compared with the prior art, features a test platform 1 on which a base plate 11 is fixedly installed. A pressure pipe 12 is installed at the bottom of the base plate 11. A support member 2 is installed above the base plate 11, and a support plate 21 adapted to the size of the end flange of the gas ultrasonic flowmeter is installed on the top of the support member 2. A first sealing ring 22 is installed on the top of the support plate 21. The middle part of the support member 2 has a through hole, and when the support member 2 is installed on the base plate 11, the through hole on the support member 2 is connected to the pressure pipe 12. A sealing plate 4 is also installed above the support member 2, and the sealing plate 4 is moved up and down by a clamping member 5. In this application, during use, one end flange of the gas ultrasonic flowmeter can be placed on the support plate 21 on the top of the support member 2, and a sealing ring can be placed on the other end. The gas ultrasonic flowmeter is then pressed between the sealing plate 4 and the support member 2 by the sealing plate 4. Finally, the pressurization mechanism 3 pressurizes the gas ultrasonic flow meter through the pressurization pipe 12 to conduct a pressure resistance test. The design of the support component 2 allows the gas ultrasonic flow meter to be suspended between the base plates 11, preventing interference between the display module or other modules on the gas ultrasonic flow meter and the base plate 11. This allows for pressure resistance tests on different models of gas ultrasonic flow meters.

[0026] Specifically, in this embodiment, the pressurizing mechanism 3 adopts existing technology and can be a booster pump or a manual test pump. When the pressurizing medium is liquid, a water tank for containing liquid is also provided below the test platform, and a drain hole for discharging liquid into the water tank is provided on the base plate 11.

[0027] In some embodiments, the support member 2 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2 The support member 2 is detachably mounted on the base plate 11, and the sealing plate 4 is detachably mounted on the drive end of the clamping member 5. Support members 2 and sealing plates 4 with different sized support plates can be used for different specifications of ultrasonic gas flow meters. Furthermore, the height of the support member 2 can be freely adjusted, making it suitable for pressure tests of ultrasonic gas flow meters of different lengths, further improving the applicability of the device.

[0028] In some embodiments, the support member 2 may be adopted as follows: Figure 2 The structure shown. See also Figure 2The support member 2 has a positioning plate 23 at its bottom end. A positioning groove is recessed in the base plate 11 to slide and engage with the positioning plate 23, and a second sealing ring 13 is provided at the bottom of the positioning groove. The positioning plate 23 is circular, and the positioning groove on the base plate 11 allows it to slide into the positioning groove. The positioning plate 23 can slide into the positioning groove, which serves to position and guide the installation of the support member 2, preventing tilting or displacement of the support member 2 during the test and thus avoiding any impact on the test structure.

[0029] Specifically, in this embodiment, the pressure pipe 12 is connected to the positioning groove, and an annular groove for installing the second sealing ring 13 is recessed at the bottom of the positioning groove. The second sealing ring 13 is installed inside the annular groove. When the positioning disk 23 is placed inside the positioning groove, the positioning disk 23 abuts against the second sealing ring 13 inside the positioning groove, thereby achieving a sealed connection between the positioning disk 23 and the base plate 11. At the same time, the through hole on the support member 2 is connected to the pressure pipe 12.

[0030] In some embodiments, the positioning disk 23 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 A guide post 24 is fixedly installed at the bottom of the positioning disk 23, and a guide hole is provided on the base plate 11 to slide with the guide post 24. The guide post 24 is also coaxially mounted at the bottom of the positioning disk 23, and a guide hole is provided on the base plate 11 to slide with the guide post 24. The guide post 24 is slidably disposed inside the guide hole, and a chamfer is provided at the end of the guide post 24 to facilitate sliding into the guide hole. This facilitates the installation of the positioning disk 23 onto the base plate 11, and the guide post 24 enhances the guidance of the support member 2 on the base plate 11, further improving the stability of the support member 2 installation.

[0031] In some embodiments, the base plate 11 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 A mounting plate 6 is fixedly installed on the top of the base plate 11, and a positioning groove is located on the mounting plate 6. The mounting plate 6, with its positioning groove, is bolted to the top of the base plate 11. During equipment assembly, the mounting plate 6 can be machined separately and then bolted to the base plate 11, facilitating the assembly of the entire device. A connecting joint for sealing connection with the pressure pipe 12 is located at the bottom of the mounting plate 6. The connecting joint penetrates the base plate 11. When the support member 2 is installed on the mounting plate 6, the guide post 24 on the support member 2 slides into the connecting joint and communicates with it. Simultaneously, a second sealing ring 13 between the positioning plate 23 and the positioning groove provides a sealing connection, enabling communication between the through hole on the support member 2 and the pressure pipe 12. The structure is simple and easy to assemble on-site.

[0032] In some embodiments, the installation disk 6 described above can be as follows: Figure 2 The structure shown. See also Figure 2 The mounting plate 6 is also equipped with a pressure plate 7 for positioning the positioning plate 23 onto the mounting plate 6. A clamping element 71 is threadedly connected to the mounting plate 6 to press the pressure plate 7 firmly onto the positioning plate 23. The pressure plate 7 can also be detachably installed on the mounting plate 6. After the positioning plate 23 is installed into the positioning groove, the pressure plate 7 can limit the positioning plate 23 within the positioning groove. Both ends of the pressure plate 7 abut against the positioning plate 23 and the mounting plate 6 respectively. A through hole for installing the clamping element 71 is provided in the middle of the pressure plate 7. The clamping element 71 passes through the pressure plate 7 and is threadedly connected to the mounting plate 6. The clamping element 71 is a bolt, thus pressing the pressure plate 7 between the mounting plate 6 and the positioning plate 23.

[0033] Specifically, in this embodiment, the pressure plate 7 is used to limit the positioning plate 23 inside the positioning groove, and when the sealing plate 4 presses the gas ultrasonic flow meter onto the support member 2, it will apply a downward force to the support member 2, so that the positioning plate 23 can press the second sealing ring 13 to achieve a sealed connection.

[0034] In some embodiments, the sealing plate 4 described above can be as follows: Figure 2 The structure shown. See also Figure 2 The two ends of the pressure plate 7 are inclined towards the positioning plate 23 and the mounting plate 6, and the clamping member 71 abuts against the middle of the pressure plate 7. The pressure plate 7 is formed by bending a dry board in one piece. The two ends of the pressure plate 7 are inclined in the same direction. By clamping the middle of the pressure plate 7 with the clamping member 71, the two ends of the pressure plate 7 can effectively abut against the mounting plate 6 and the positioning plate 23, which facilitates the clamping of the positioning plate 23. At the same time, when there is a height difference between the top surface of the positioning plate 23 and the top surface of the mounting plate 6, the clamping operation of the positioning plate 23 can still be achieved.

[0035] In some embodiments, the sealing plate 4 described above can be as follows: Figure 1 The structure shown. See also Figure 1 A sleeve 41 for fitting onto the drive end of the clamping member 5 is fixedly installed on the sealing plate 4. A fastener 42 for abutting against the drive end of the clamping member 5 is threaded onto the side wall of the sleeve 41. The sleeve 41 is coaxially arranged on the top of the sealing plate 4. The clamping member 5 is a hydraulic cylinder. The sleeve 41 is fitted onto the drive end of the hydraulic cylinder and is secured to the drive shaft of the hydraulic cylinder by the fastener 42. This design is simple and facilitates the subsequent disassembly and installation of the sealing plate 4.

[0036] In some embodiments, the pressure tube 12 can be adopted as follows: Figure 1 The structure shown. See also Figure 1A pressure gauge 31 is installed on the pressurizing pipe 12 to detect the internal pressure of the pressurizing pipe 12. The pressure gauge 31 is connected to the pressurizing pipe 12 and is used to monitor the pressure applied inside the ultrasonic gas flow meter of the pressurizing mechanism 3. The pressure resistance of the ultrasonic gas flow meter can be determined by observing the change of the pressure gauge 31 after pressurization for a period of time.

[0037] Preferably, in this embodiment, a control valve for controlling the flow state of the pressure pipe 12 is also installed on the pressure pipe 12, and the control valve is located on the side of the pressure gauge 31 close to the pressure mechanism 3. By closing the control valve, the connection between the pressure mechanism 3 and the gas ultrasonic flow meter can be cut off, so that the gas ultrasonic flow meter maintains a stable pressure state.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure resistance testing device for a gas ultrasonic flowmeter, characterized in that, include: Test platform (1), on which a base plate (11) is installed, and a pressure pipe (12) is provided on the base plate (11); A support member (2) is installed on the top surface of the base plate (11). The middle part of the support member (2) is provided with a through hole communicating with the pressurizing pipe (12). A support plate (21) is fixedly installed on the top of the support member (2). A first sealing ring (22) is provided on the top surface of the support plate (21). A pressurizing mechanism (3) is installed on one side of the test platform (1) for pressurizing the inside of the pressurizing tube (12); A sealing plate (4) is installed on the test platform (1) and located directly above the support member (2); The clamping member (5) is installed on the test platform (1) and is used to press the gas ultrasonic flow meter onto the support member (2).

2. The gas ultrasonic flowmeter pressure resistance test device as described in claim 1, characterized in that, The support member (2) is detachably mounted on the base plate (11), and the sealing plate (4) is detachably mounted on the drive end of the clamping member (5).

3. The gas ultrasonic flowmeter pressure resistance test device as described in claim 2, characterized in that, The support member (2) is provided with a positioning plate (23) at its bottom end. The base plate (11) is recessed with a positioning groove that slides with the positioning plate (23), and a second sealing ring (13) is provided at the bottom of the positioning groove.

4. The gas ultrasonic flowmeter pressure resistance test device as described in claim 3, characterized in that, The bottom of the positioning disk (23) is fixedly installed with a guide post (24), and the base plate (11) is also provided with a guide hole that slides with the guide post (24).

5. The gas ultrasonic flowmeter pressure resistance test device as described in claim 3, characterized in that, The mounting plate (6) is fixedly installed on the top of the base plate (11), and the positioning groove is located on the mounting plate (6).

6. The gas ultrasonic flowmeter pressure resistance test device as described in claim 5, characterized in that, The mounting plate (6) is also equipped with a pressure plate (7) for limiting the positioning plate (23) to the mounting plate (6), and the mounting plate (6) is threaded with a clamping member (71) for pressing the pressure plate (7) onto the positioning plate (23).

7. The gas ultrasonic flowmeter pressure resistance test device as described in claim 6, characterized in that, The two ends of the pressure plate (7) are inclined toward the positioning plate (23) and the mounting plate (6), and the clamping member (71) abuts against the middle of the pressure plate (7).

8. The gas ultrasonic flowmeter pressure resistance test device as described in claim 2, characterized in that, A sleeve (41) for fitting onto the drive end of the clamping member (5) is fixedly installed on the sealing plate (4), and a fastener (42) for abutting against the drive end of the clamping member (5) is threaded onto the side wall of the sleeve (41).

9. The gas ultrasonic flowmeter pressure resistance test device as described in claim 1, characterized in that, A pressure gauge (31) for detecting the internal pressure of the pressure tube (12) is installed on the pressure tube (12).

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