Air tightness detection device for chemical storage tank

Abstract

The utility model discloses a chemical storage tank airtightness detection device, which comprises a base, one end of the upper surface of the base is fixedly connected with a fixing ring through a fixing rod, and the lower surface of the base is provided with an adjusting groove. According to the utility model, through the structures of the adjusting rod, the adjusting block and the like, when the airtightness of the chemical storage tank body is detected, the chemical storage tank body is placed inside the base, and the adjusting handle is manually rotated, so that the adjusting rod is rotated, and the adjusting block is driven to slide inside the adjusting groove; the connecting structure moves towards the direction of the fixing ring, after the connecting structure moves to a proper position, the auxiliary block and the auxiliary ring are pressed downwards, and through mutual extrusion between the auxiliary ring and the fixing ring, the purpose of clamping and fixing the chemical storage tank body is achieved; and the purpose of clamping and fixing the chemical storage tank bodies with different sizes is achieved through a connecting structure capable of freely adjusting and sliding and a structure that the auxiliary block can slide left and right in the auxiliary groove.

Description

Technical Field

[0001] This utility model relates to the field of chemical storage tank testing technology, and in particular to a chemical storage tank airtightness testing device. Background Technology

[0002] A chemical storage tank airtightness testing device is a specialized instrument used to test the sealing performance of tanks storing chemicals. It typically includes a pressure sensor, a gas supply system, and a data acquisition system. Its working principle involves injecting gas at a certain pressure into the tank and then monitoring changes in the pressure difference between the inside and outside of the tank. If the pressure difference remains stable within a certain time, it indicates that the tank is leak-free and has good airtightness; conversely, if the pressure difference changes, it indicates a leak in the tank, requiring further inspection and repair. This device is of great significance for ensuring the safety of chemical storage and preventing environmental pollution and material loss.

[0003] In current practices for testing the airtightness of chemical storage tanks, a fixing structure is typically used to assist in clamping and securing the tank to ensure the accuracy and safety of the test. However, existing fixing structures often suffer from limited dimensional options, meaning that testers must be equipped with various sizes of fixing devices for tanks of different diameters or volumes. In practice, this not only results in a wide variety of fixing structures but also necessitates replacement and reassembly of the fixing structure whenever a different tank size is encountered. This process is time-consuming, labor-intensive, reduces work efficiency, and increases operating costs. Utility Model Content

[0004] One objective of this invention is to provide a chemical storage tank airtightness testing device. This invention addresses the problem mentioned in the background that existing fixing structures often have a single size, requiring testing personnel to be equipped with fixing devices of various sizes, resulting in a wide variety of fixing structures. Moreover, whenever a tank of a different size is encountered, the fixing structure needs to be replaced and reassembled, which is not only time-consuming and labor-intensive but also reduces work efficiency and increases operating costs.

[0005] A chemical storage tank airtightness testing device according to an embodiment of the present invention includes a base. A fixing ring is fixedly connected to one end of the upper surface of the base via a fixing rod. An adjustment groove is formed on the lower surface of the base. An adjustment rod is rotatably connected inside the adjustment groove. The adjustment rod is a threaded rod structure. An adjustment block is threadedly connected to the surface of the adjustment rod. A connecting structure is fixedly connected to the upper end of the adjustment block. A connecting plate is rotatably connected to the upper end of the connecting structure. An auxiliary groove is formed on the upper surface of the connecting plate. An auxiliary rod is fixedly connected inside the auxiliary groove. An auxiliary block is slidably connected to the surface of the auxiliary rod. An auxiliary ring is fixedly connected to one end of the auxiliary block.

[0006] Preferably, the upper inner surface of the base is provided with a plurality of anti-slip protrusions, which are made of rubber.

[0007] Preferably, rubber strips are installed on the inner sides of both the fixing ring and the auxiliary ring.

[0008] Preferably, one end of the adjusting rod is fixedly connected to an adjusting handle.

[0009] Preferably, a limiting groove is formed through the upper end of the side surface of the connecting structure.

[0010] Preferably, the connecting plate is rotatably connected to the upper end of the connecting structure via a rotating structure.

[0011] Preferably, an auxiliary spring is provided between one side surface of the auxiliary block and the inner wall of the auxiliary groove, and the auxiliary spring is provided on the surface of the auxiliary rod.

[0012] Preferably, a support leg is fixedly installed on the lower surface of the base, and the base is installed inside the airtightness testing equipment via the support leg.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, by using an adjusting rod and adjusting block, the chemical storage tank is placed inside the base during airtightness testing. The adjusting handle is manually rotated, causing the adjusting rod to rotate and the adjusting block to slide within the adjusting groove. The connecting structure moves towards the fixing ring. Once the connecting structure is in the appropriate position, the auxiliary block and auxiliary ring are pressed down. The mutual compression between the auxiliary ring and the fixing ring clamps and secures the chemical storage tank. The freely adjustable connecting structure and the auxiliary block, which can slide left and right within the auxiliary groove, allow for clamping and securing chemical storage tanks of different sizes. This effectively avoids the problem of existing fixing structures often having only one size, requiring testing personnel to equip themselves with various sizes of fixing devices, resulting in a wide variety of fixing structures. Furthermore, whenever a different size tank is encountered, the fixing structure needs to be replaced and reassembled, a process that is not only time-consuming and labor-intensive but also reduces work efficiency and increases operating costs.

[0015] In this invention, the chemical storage tank is clamped and fixed by a limiting groove, an auxiliary block, and an auxiliary ring. A long rod is inserted into the limiting groove to further limit the position of the connecting plate, preventing it from being ejected upwards and causing the fixing structure to fail. The rubber strip increases the friction between the fixing ring, the auxiliary ring, and the outer surface of the chemical storage tank, further preventing the chemical storage tank from sliding during airtightness testing. The support legs facilitate the installation of the entire device inside the airtightness testing equipment. After the sealing cap is placed on the chemical storage tank, an air pump is connected to the sealing cap to inflate the tank to a predetermined pressure. The pressure gauge reading inside the tank is then directly observed to determine whether the airtightness of the chemical storage tank is good. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of a chemical storage tank airtightness testing device proposed in this utility model;

[0018] Figure 2 This utility model proposes a device for detecting the airtightness of chemical storage tanks. Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a three-dimensional schematic diagram of the bottom end of a chemical storage tank airtightness testing device proposed in this utility model;

[0020] Figure 4 This utility model proposes a device for detecting the airtightness of chemical storage tanks. Figure 3 Enlarged view of point B in the middle;

[0021] In the diagram: 1. Base; 2. Support leg; 3. Anti-slip protrusion; 4. Adjustment groove; 5. Adjustment rod; 6. Adjustment handle; 7. Adjustment block; 8. Connecting structure; 9. Rotating structure; 10. Connecting plate; 11. Auxiliary groove; 12. Auxiliary rod; 13. Auxiliary spring; 14. Auxiliary block; 15. Auxiliary ring; 16. Fixing rod; 17. Fixing ring; 18. Rubber strip; 19. Limiting groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] refer to Figure 1-4 A chemical storage tank airtightness testing device includes a base 1. A fixing ring 17 is fixedly connected to one end of the upper surface of the base 1 via a fixing rod 16. An adjustment groove 4 is formed on the lower surface of the base 1. An adjustment rod 5 is rotatably connected inside the adjustment groove 4. The adjustment rod 5 is a threaded rod structure. An adjustment block 7 is threadedly connected to the surface of the adjustment rod 5. A connecting structure 8 is fixedly connected to the upper end of the adjusting block 7. A connecting plate 10 is rotatably connected to the upper end of the connecting structure 8. An auxiliary groove 11 is formed on the upper surface of the connecting plate 10. An auxiliary rod 12 is fixedly connected inside the auxiliary groove 11. An auxiliary block 14 is slidably connected to the surface of the auxiliary rod 12. An auxiliary ring 15 is fixedly connected to one end of the auxiliary block 14. The device utilizes the adjustment rod 5 and... The structure, including the adjusting block 7, allows for airtightness testing of chemical storage tanks. The tank is placed inside the base 1, and the adjusting handle 6 is manually rotated to rotate the adjusting rod 5, causing the adjusting block 7 to slide within the adjusting groove 4. The connecting structure 8 moves towards the fixing ring 17. After the connecting structure 8 reaches the appropriate position, the auxiliary block 14 and auxiliary ring 15 are pressed down. The mutual compression between the auxiliary ring 15 and the fixing ring 17 clamps and secures the chemical storage tank. Furthermore, the freely adjustable connecting structure 8 and auxiliary block 14 can slide left and right within the auxiliary groove 11, enabling the clamping and securing of chemical storage tanks of different sizes.

[0024] Example 1: Several anti-slip protrusions 3 are installed on the inner upper surface of the base 1. The anti-slip protrusions 3 are made of rubber, which increases the friction between the base 1 and the lower surface of the chemical storage tank, further preventing the chemical storage tank from sliding during airtightness testing. Rubber strips 18 are installed on the inner sides of the fixing ring 17 and the auxiliary ring 15. The rubber strips 18 increase the friction between the fixing ring 17, the auxiliary ring 15 and the outer surface of the chemical storage tank, thereby further preventing the chemical storage tank from sliding during airtightness testing. One end of the adjusting rod 5 is fixedly connected to the adjusting handle 6.

[0025] Example 2: A limiting groove 19 is formed through the upper end of the side surface of the connecting structure 8. The connecting plate 10 is rotatably connected to the upper end of the connecting structure 8 through the rotating structure 9. An auxiliary spring 13 is provided between one side surface of the auxiliary block 14 and the inner wall of the auxiliary groove 11. The auxiliary spring 13 is provided on the surface of the auxiliary rod 12. After the chemical storage tank is clamped and fixed by the auxiliary block 14 and the auxiliary ring 15 through the limiting groove 19, the long rod is inserted into the inside of the limiting groove 19 to assist in limiting the position of the connecting plate 10 and prevent the connecting plate 10 from being bounced upward and causing the fixing structure to fail. The lower surface of the base 1 is fixedly installed with a support leg 2. The base 1 is installed inside the air tightness testing equipment through the support leg 2. The support leg 2 makes it easy to install the entire device inside the air tightness testing equipment. After the sealing cover is placed on the chemical storage tank, the air pump is connected to the sealing cover to inflate the tank to a predetermined pressure. Then, the change in the pressure gauge value inside the tank is directly observed to determine whether the air tightness of the chemical storage tank is good.

[0026] In use, place the chemical storage tank inside the base 1, ensuring the tank sits stably on the anti-slip protrusions 3 to increase friction and prevent slippage. Next, manually turn the adjusting handle 6 to rotate the adjusting rod 5, causing the adjusting block 7 to slide within the adjusting groove 4, moving the connecting structure 8 towards the fixing ring 17 to the appropriate position. Then, press the auxiliary block 14 and auxiliary ring 15 to tightly press the auxiliary ring 15 against the fixing ring 17, achieving clamping and fixation. The position of the connecting plate 10 is limited by the limiting groove 19 and the long rod to prevent the fixing structure from failing. Afterward, the airtightness of the chemical storage tank can be tested. After closing the sealing cap, connect the air pump to inflate the tank to the predetermined pressure, and observe the pressure gauge readings inside the tank to determine if the airtightness of the chemical storage tank is good.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the airtightness of a chemical storage tank, characterized in that, The system includes a base (1), one end of the upper surface of the base (1) is fixedly connected to a fixing ring (17) by a fixing rod (16), the lower surface of the base (1) is provided with an adjustment groove (4), the inside of the adjustment groove (4) is rotatably connected to an adjustment rod (5), the adjustment rod (5) is a threaded rod structure, the surface of the adjustment rod (5) is threadedly connected to an adjustment block (7), the upper end of the adjustment block (7) is fixedly connected to a connecting structure (8), the upper end of the connecting structure (8) is rotatably connected to a connecting plate (10), the upper surface of the connecting plate (10) is provided with an auxiliary groove (11), the inside of the auxiliary groove (11) is fixedly connected to an auxiliary rod (12), the surface of the auxiliary rod (12) is slidably connected to an auxiliary block (14), one end of the auxiliary block (14) is fixedly connected to an auxiliary ring (15).

2. The chemical storage tank airtightness testing device according to claim 1, characterized in that, The upper inner surface of the base (1) is equipped with several anti-slip protrusions (3), which are made of rubber.

3. The chemical storage tank airtightness testing device according to claim 1, characterized in that, Rubber strips (18) are installed on the inner sides of both the fixing ring (17) and the auxiliary ring (15).

4. The airtightness testing device for a chemical storage tank according to claim 1, characterized in that, One end of the adjusting rod (5) is fixedly connected to an adjusting handle (6).

5. The chemical storage tank airtightness testing device according to claim 1, characterized in that, A limiting groove (19) is provided through the upper end of the side surface of the connecting structure (8).

6. The airtightness testing device for a chemical storage tank according to claim 1, characterized in that, The connecting plate (10) is rotatably connected to the upper end of the connecting structure (8) via the rotating structure (9).

7. The chemical storage tank airtightness testing device according to claim 1, characterized in that, An auxiliary spring (13) is provided between one side surface of the auxiliary block (14) and the inner wall of the auxiliary groove (11), and the auxiliary spring (13) is provided on the surface of the auxiliary rod (12).

8. The airtightness testing device for a chemical storage tank according to claim 1, characterized in that, The lower surface of the base (1) is fixedly mounted with a support leg (2), and the base (1) is installed inside the airtightness testing equipment through the support leg (2).

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