Storage tank breather valve verification device

Abstract

The utility model belongs to the technical field of breather valves, and provides a storage tank breather valve verification device, which comprises a tank body, an air pump and an inflator pump are communicated on the tank body, an air pressure sensor is fixedly arranged in the tank body, a connecting groove is communicated on the tank body, and a plurality of groups of support rods are arranged on the side wall of the connecting groove in a sliding manner. Limiting blocks are fixedly installed at the ends, located in the connecting grooves, of the supporting rods, and a power assembly for pushing the multiple sets of supporting rods to move simultaneously is arranged on the tank body. The technical problem that in the prior art, the position of a breather valve cannot be accurately positioned and limited, and consequently connection between the breather valve and verification equipment is unstable is solved. Compared with the prior art, the device has the advantages that breather valves of different sizes can be aligned and connected with the communicating pipe after being placed, the applicability of the device to the breather valves of different sizes is improved, the placing accuracy of the breather valves is guaranteed, the air tightness of communication between the breather valves and the communicating pipe is improved, and the service life of the breather valves is prolonged. And the accuracy of a subsequent breather valve verification result is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of breathing valves, and particularly relates to a verification device for a storage tank breathing valve. Background Art

[0002] A breathing valve is a safe and energy-saving product for maintaining the air pressure balance of a storage tank and reducing the volatilization of the medium. The breathing valve makes full use of the pressure-bearing capacity of the storage tank itself to reduce the medium emission. According to the installation method, the breathing valve has an internal type and an external type. The internal breathing valve is installed on the tank top or manhole cover to adjust the internal and external pressure difference. It can set different opening pressures according to different usage ranges to ensure the safety and reliability of the tank body.

[0003] After the production of the breathing valve, it needs to be verified and detected. During the use of the existing verification device for the breathing valve, due to the differences in the size and dimensions of the breathing valve to be tested, it is difficult to accurately clamp and fix it during the verification process, which is not conducive to the convenience and applicability of the breathing valve verification. In view of the above technical problems, the applicant has retrieved some existing technologies. For example, in the Chinese patent with the patent publication number CN216449161U, when it is used, the breathing valve is clamped and positioned by multiple groups of clamping plates. However, the positions of the multiple groups of clamping plates are adjusted separately. Therefore, it is difficult to ensure that the positions of each group of clamping plates are in the same state during the adjustment, which will cause the placement position of the breathing valve to deviate, and then lead to unstable connection between the breathing valve and the verification equipment, easily resulting in air leakage at the connection, reducing the airtightness of the breathing valve connection, and finally resulting in inaccurate results of the breathing valve verification and detection. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a verification device for a storage tank breathing valve, aiming to solve the technical problem that the position of the breathing valve cannot be accurately positioned and restricted in the existing technology, resulting in unstable connection between the breathing valve and the verification equipment.

[0005] The utility model is realized as follows: A verification device for a storage tank breathing valve includes a tank body. An air extraction pump and an air inflation pump are connected to the tank body, and a pressure sensor is fixedly installed in the tank body. A connection groove is connected to the tank body. Multiple groups of support rods are slidably installed on the side wall of the connection groove. A limiting block is fixedly installed at one end of the support rod located in the connection groove. A power assembly for pushing multiple groups of support rods to move simultaneously is arranged on the tank body, and a pressing assembly for pressing the breathing valve is arranged on the tank body.

[0006] Further technical solution: A communicating pipe extending into the tank body is fixedly installed on the connection groove, and an electromagnetic valve is fixedly installed on the communicating pipe.

[0007] Further technical solution: Multiple groups of limiting balls distributed in a linear array are rotatably installed on the surface of the limiting block away from the support rod.

[0008] Further technical solution: The power assembly includes mounting columns. There are multiple groups of mounting columns which are fixedly installed on the tank body. The multiple groups of mounting columns are distributed in a circumferential array around the connecting groove and the mounting columns are distributed corresponding to the positions of the support rods. A slider for pushing the corresponding support rod to move is slidably installed on each group of mounting columns, and a first telescopic member for simultaneously driving the multiple groups of sliders to move is fixedly installed on the tank body.

[0009] Further technical solution: A fixing ring is fixedly installed at the ends of the multiple groups of mounting columns away from the tank body, and a positioning frame with a V-shaped structure is slidably installed on the fixing ring.

[0010] Further technical solution: Multiple groups of elastic members for applying tensile force to the limit blocks respectively are fixedly installed in the connecting groove.

[0011] Further technical solution: A connecting ring is fixedly installed on the multiple groups of sliders, and the connecting ring is fixedly connected to the output end of the first telescopic member.

[0012] Further technical solution: The slider has a right trapezoidal structure and the inclined surface of the slider contacts the end of the support rod, and a roller in rolling contact with the slider is rotatably installed at the end of the support rod.

[0013] Further technical solution: The pressing assembly includes a bracket. The bracket is fixedly installed on the tank body and a second telescopic member pointing to the tank body is fixedly installed on the horizontal section of the bracket, and a pressing plate is fixedly installed at the output end of the second telescopic member.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The final positions of the breathing valves can be limited and positioned by multiple groups of limit blocks distributed in a circumferential array, so that breathing valves of different sizes can be aligned and connected with the connecting pipes after being placed, increasing the applicability of the device to breathing valves of different sizes, ensuring the accuracy of the placement position of the breathing valves, improving the airtightness of the connection between the breathing valves and the connecting pipes, and further improving the accuracy of the subsequent breathing valve calibration results.

[0016] 2. Comprehensive detection of the air inlet and outlet of the breathing valve is realized. By closing the connecting pipe with the solenoid valve, the air pressure in the tank body can be ensured to be at an appropriate size and stable before detection. By calculating the change difference of the air pressure in the tank body, the gas passing situation of the breathing valve can be obtained, which can assist in verifying the calibration detection results of the breathing valve from the side and ensuring the accuracy of the detection results.

[0017] 3. When calibrating and detecting breathing valves of the same size subsequently, they can be quickly positioned by leaning on the positioning frame, reducing the moving distance of positioning the breathing valves subsequently, increasing the installation speed of the breathing valves, and further improving the calibration detection efficiency of the breathing valves. Description of the Drawings

[0018] Figure 1 This is the overall structural schematic diagram of the present utility model.

[0019] Figure 2 This is the sectional structural schematic diagram of the present utility model.

[0020] Figure 3 This is the structural schematic diagram of the power assembly in the present utility model.

[0021] In the attached drawings: 1. Tank body; 2. Air extraction pump; 3. Inflation pump; 4. Pressure sensor; 5. Mounting column; 6. Fixed ring; 7. Slide block; 8. Connecting ring; 9. First telescopic member; 10. Connecting groove; 11. Support rod; 12. Roller; 13. Limit block; 14. Elastic member; 15. Limit ball; 16. Bracket; 17. Second telescopic member; 18. Pressing plate; 19. Positioning frame; 20. Connecting pipe; 21. Solenoid valve; 22. Power assembly; 23. Pressing assembly. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] The specific implementation of the present utility model will be described in detail below with reference to specific embodiments.

[0024] As Figures 1 - 3 shown, a breathing valve calibration device for a storage tank provided by the present utility model includes a tank body 1. An air extraction pump 2 and an inflation pump 3 are connected to the tank body 1, and a pressure sensor 4 is fixedly installed inside the tank body 1. A connecting groove 10 is connected to the tank body 1. A connecting pipe 20 extending into the tank body 1 is fixedly installed on the connecting groove 10. A solenoid valve 21 is fixedly installed on the connecting pipe 20. A plurality of groups of support rods 11 are slidably installed on the side wall of the connecting groove 10. The plurality of groups of support rods 11 are distributed in a circumferential array around the connecting groove 10. A limit block 13 is fixedly installed at one end of the support rod 11 located inside the connecting groove 10. A plurality of groups of limit balls 15 distributed in a linear array are rotatably installed on the surface of the limit block 13 away from the support rod 11. A power assembly 22 for simultaneously moving the plurality of groups of support rods 11 is provided on the tank body 1, and a pressing assembly 23 for pressing the breathing valve is provided on the tank body 1.

[0025] In practical application of this embodiment, the connecting end of the breathing valve is placed in the connecting groove 10. At this time, the power assembly 22 drives multiple groups of support rods 11 to move into the connecting groove 10 simultaneously. When the support rods 11 move inward, they push the limit blocks 13 to move, so that the limit balls 15 can contact the side wall of the breathing valve. Since multiple groups of support rods 11 are arranged in a circular array around the connecting groove 10, finally multiple groups of limit blocks 13 will push the breathing valve to move to the middle position of the connecting groove 10, so that the connecting end of the breathing valve is aligned and connected with the communicating pipe 20. After the position of the breathing valve is adjusted, the breathing valve is pressed on the connecting groove 10 through the pressing assembly 23, so that the breathing valve is hermetically connected with the communicating pipe 20. The friction between the breathing valve and the limit block 13 is reduced by the limit balls 15. The final position of the breathing valve can be limited and positioned by multiple groups of limit blocks 13 arranged in a circular array, so that breathing valves of different sizes can be aligned and connected with the communicating pipe 20 after being placed, increasing the applicability of the device to breathing valves of different sizes, ensuring the accuracy of the placement position of the breathing valve, improving the airtightness of the connection between the breathing valve and the communicating pipe 20, and further improving the accuracy of the subsequent breathing valve calibration result;

[0026] After the breathing valve is installed, first, the gas is injected into the tank body 1 through the air inflation pump 3. At this time, the electromagnetic valve 21 is closed, and the gas pressure in the tank body 1 is detected by the pressure sensor 4. When the gas pressure in the tank body 1 reaches the set threshold value, stop injecting air into the tank body 1 and simultaneously open the electromagnetic valve 21. If the breathing valve is not damaged, at this time, under the action of the gas pressure, the air will move through the communicating pipe 20 through the breathing valve to the outside, so the pressure in the tank body 1 detected by the pressure sensor 4 will decrease. Then close the electromagnetic valve 21 and pump out the gas in the tank body 1 through the air extraction pump 2, so that the tank body 1 is in a negative pressure state. The gas pressure in the tank body 1 is detected by the pressure sensor 4. When the gas pressure in the tank body 1 reaches the set threshold value, stop pumping out the air in the tank body 1 and simultaneously open the electromagnetic valve 21. If the breathing valve is not damaged, the outside air will pass through the breathing valve and enter the tank body 1, so the air pressure reading detected by the pressure sensor 4 increases. At this time, the calibration detection operation of the breathing valve can be completed, realizing the comprehensive detection of the air intake and air outlet of the breathing valve. By closing the communicating pipe 20 through the electromagnetic valve 21, it can ensure that the air pressure in the tank body 1 is at an appropriate size and stable before detection. By calculating the change difference of the air pressure in the tank body 1, the situation of the breathing valve passing through the gas can be obtained, which can assist in verifying the calibration detection result of the breathing valve from the side and ensure the accuracy of the detection result. Then release the fixation of the breathing valve by the pressing assembly 23, and then replace the new breathing valve for calibration detection.

[0027] Such as Figures 1 - 3As shown in the figure, a breathing valve calibration device provided by the present utility model, the power assembly 22 includes a mounting post 5. There are multiple groups of mounting posts 5 which are fixedly installed on the tank body 1. The multiple groups of mounting posts 5 are distributed in a circumferential array around the connecting groove 10 and the mounting posts 5 are distributed corresponding to the positions of the support rods 11. A slider 7 for pushing the corresponding support rod 11 to move is slidably installed on each group of mounting posts 5. A first telescopic member 9 for simultaneously driving the multiple groups of sliders 7 to move is fixedly installed on the tank body 1.

[0028] Specifically, a fixing ring 6 is fixedly installed at one end of the multiple groups of mounting posts 5 away from the tank body 1. A positioning frame 19 with a V-shaped structure is slidably installed on the fixing ring 6.

[0029] Specifically, multiple groups of elastic members 14 for applying tensile forces to the limiting blocks 13 respectively are fixedly installed in the connecting groove 10.

[0030] Specifically, a connecting ring 8 is fixedly installed on the multiple groups of sliders 7. The connecting ring 8 is fixedly connected to the output end of the first telescopic member 9.

[0031] Specifically, the slider 7 has a right trapezoidal structure and the inclined surface of the slider 7 contacts the end of the support rod 11. A roller 12 that is in rolling contact with the slider 7 is rotatably installed at the end of the support rod 11.

[0032] In actual application of this embodiment, after the breathing valve is placed in the connecting groove 10, at this time the first telescopic member 9 drives the connecting ring 8 to move downward. At this time, the multiple groups of sliders 7 move downward simultaneously under the drive of the connecting ring 8. Since the inclined surface of the slider 7 contacts the end of the support rod 11, when the slider 7 moves downward, it can push the support rod 11 to move into the connecting groove 10. The friction between the support rod 11 and the slider 7 is reduced through the roller 12. Thus, the multiple groups of support rods 11 drive the multiple groups of limiting blocks 13 to move inward simultaneously to position and limit the breathing valve. When the limiting blocks 13 move inward, they will stretch the elastic members 14. Thus, when the slider 7 moves upward later, under the pulling force of the elastic members 14, the support rod 11 can be reset. The strength and stability of the installation of the mounting post 5 are increased through the fixing ring 6. When detecting multiple breathing valves of the same size, after the breathing valve is fixed, the positioning frame 19 is pushed to move so that the positioning frame 19 contacts the surface of the breathing valve, and then the position of the positioning frame 19 is fixed by fixing screws. When calibrating and detecting the breathing valves of the same size later, they can be leaned against the positioning frame 19 to achieve rapid positioning of the breathing valve, reducing the moving distance of positioning the breathing valve later, improving the installation speed of the breathing valve, and further improving the calibration and detection efficiency of the breathing valve.

[0033] In an example of the present utility model, the first telescopic member 9 is a first electric telescopic rod, and of course it can also be other components that can actively change the length, such as a hydraulic cylinder. The first electric telescopic rod drives multiple groups of sliders 7 to move simultaneously through a connecting ring 8. The elastic member 14 is a spring, and of course it can also be other elastic components such as an elastic ball. The spring stretches to apply tension to the limit block 13, so that the limit block 13 can be reset.

[0034] like Figure 1 , Figure 2 As shown, a tank breathing valve calibration device provided by the utility model, the clamping assembly 23 includes a bracket 16, the bracket 16 is fixedly mounted on the tank body 1 and a second telescopic member 17 pointing to the tank body 1 is fixedly mounted on the horizontal section of the bracket 16, and a pressure plate 18 is fixedly mounted on the output end of the second telescopic member 17.

[0035] In actual application of this embodiment, after the position of the breathing valve is adjusted, the second telescopic member 17 drives the pressure plate 18 to move downward, so that the breathing valve is pressed into the connecting groove 10 by the pressure plate 18, thereby realizing a stable sealing connection between the connecting groove 10 and the breathing valve. After the verification and inspection is completed, the pressure plate 18 is reset and the breathing valve can be removed.

[0036] In an example of the present utility model, the second telescopic member 17 is a second electric telescopic rod, and of course it can also be other components that can actively change the length, such as a hydraulic cylinder. The second electric telescopic rod drives the pressure plate 18 to move, thereby fixing the breathing valve.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tank breathing valve calibration device, comprising a tank body (1), the tank body (1) being connected to an air extraction pump (2) and an air charging pump (3), and an air pressure sensor (4) being fixedly installed in the tank body (1), characterized in that: The tank body (1) is connected to a connecting groove (10), and a plurality of groups of supporting rods (11) are slidably mounted on the side wall of the connecting groove (10). A limiting block (13) is fixedly mounted on one end of the supporting rod (11) located in the connecting groove (10). The tank body (1) is provided with a power assembly (22) for pushing the plurality of groups of supporting rods (11) to move simultaneously, and the tank body (1) is provided with a clamping assembly (23) for clamping the breathing valve.

2. A tank breathing valve calibration device according to claim 1, characterized in that: A connecting pipe (20) extending into the tank body (1) is fixedly mounted on the connecting groove (10), and a solenoid valve (21) is fixedly mounted on the connecting pipe (20).

3. A tank breathing valve calibration device according to claim 1, characterized in that: The limiting block (13) is rotatably mounted on a surface away from the support rod (11) and has multiple groups of limiting balls (15) distributed in a linear array.

4. A tank breathing valve calibration device according to claim 1, characterized in that: The power assembly (22) comprises a mounting column (5), wherein a plurality of mounting columns (5) are arranged and fixedly mounted on the tank body (1), wherein the plurality of mounting columns (5) are distributed in a circular array around the connection groove (10) and the mounting columns (5) are distributed in a corresponding position to the support rod (11), and a slider (7) for pushing the corresponding support rod (11) to move is slidably mounted on each mounting column (5), and a first telescopic member (9) for simultaneously driving the plurality of sliders (7) to move is fixedly mounted on the tank body (1).

5. A tank breathing valve calibration device according to claim 4, characterized in that: A fixing ring (6) is fixedly mounted on one end of the plurality of mounting columns (5) away from the tank body (1), and a positioning frame (19) with a V-shaped structure is slidably mounted on the fixing ring (6).

6. A tank breathing valve calibration device according to claim 4, characterized in that: A plurality of groups of elastic members (14) for applying tension to the limit blocks (13) are fixedly installed in the connection groove (10).

7. A tank breathing valve calibration device according to claim 4, characterized in that: A connecting ring (8) is fixedly mounted on the plurality of groups of sliding blocks (7), and the connecting ring (8) is fixedly connected to the output end of the first telescopic member (9).

8. A tank breathing valve calibration device according to claim 4, characterized in that: The slider (7) is a right-angled trapezoidal structure, and the inclined surface of the slider (7) contacts the end of the support rod (11). The end of the support rod (11) is rotatably mounted with a roller (12) that is in rolling contact with the slider (7).

9. A tank breathing valve calibration device according to claim 1, characterized in that: The clamping assembly (23) comprises a bracket (16), the bracket (16) being fixedly mounted on the tank body (1) and a second telescopic member (17) pointing towards the tank body (1) being fixedly mounted on a horizontal section of the bracket (16), and a pressing plate (18) being fixedly mounted on an output end of the second telescopic member (17).

Images