Explosion-proof tank
By installing front gaskets, intermediate gaskets and rear gaskets in the fireproof cover shell of the explosion-proof box, a narrow ventilation channel is formed to prevent the flame from passing through, and gas pressure relief is achieved by pushing the top pressure relief valve, the problem that existing explosion-proof equipment cannot prevent the flame from jumping out during the pressure relief process is solved, and safety is significantly improved.
Patent Information
- Application Number
- CN202421233340.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing explosion-proof equipment cannot effectively prevent flames from jumping out of the box during pressure relief, which poses a safety hazard that triggers environmental explosions.
An explosion-proof box is designed, and its fire-proof cover shell is embedded in the installation hole of the box, and is equipped with front gaskets, intermediate gaskets and rear gaskets. The narrow ventilation channel formed by these gaskets and gaps prevents the flame from passing, and gas pressure relief is achieved through the push-top pressure relief valve.
It effectively prevents the internal flames from jumping out during the pressure relief process, avoids environmental explosions, and greatly improves overall safety.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosion-proof equipment, in particular to an explosion-proof box. Background Art
[0002] In order to improve the safety of equipment use, electrical equipment usually needs to have explosion-proof function. For explosion-proof equipment, the weak parts of the box cover can be broken in advance to form a venting channel. The shattering of the weak parts absorbs part of the energy, and the venting channel after the shattering is used to release the pressure. It can also be released through a separately set pressure relief device. For energy storage devices, battery systems and other equipment, when various faults cause the internal power semiconductor devices to fail, the energy storage components to be damaged, or abnormal flammable gases to be generated, violent physical or chemical explosions will occur.
[0003] When a violent explosion occurs inside the box, the high-pressure gas in the box will carry flames and spray out from the pressure relief channel. When the box is in an environment containing a large amount of flammable gas, the sprayed flames will further cause an environmental explosion, posing a major safety hazard. Summary of the invention
[0004] The utility model aims to provide an explosion-proof box, which can prevent the flame inside the box from jumping out during the pressure relief process, avoid causing environmental explosion, and greatly improve the overall safety.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an explosion-proof box, comprising: a box body with a mounting hole, a fireproof cover shell embedded in the mounting hole of the box body, a pressure relief valve is arranged at one end of the fireproof cover shell located outside the box body, and a front gasket, a middle gasket and a rear gasket are arranged in sequence at the other end of the fireproof cover shell, and the peripheries of the front gasket and the rear gasket are respectively sealed and connected with the inner wall of the fireproof cover shell;
[0006] A central through hole is formed at the center of each of the front gasket and the rear gasket, a first gap is formed between the front gasket and the middle gasket, a second gap is formed between the middle gasket and the rear gasket, at least two first gasket blocks located in the first gap are arranged between the front gasket and the middle gasket, at least two second gasket blocks located in the second gap are arranged between the middle gasket and the rear gasket, and a plurality of edge through holes are arranged at intervals along the circumferential direction on the edge area of the middle gasket in contact with the fireproof cover shell.
[0007] The further improved scheme in the above technical scheme is as follows:
[0008] 1. In the above solution, a fastener is installed at one end of the fireproof cover shell located in the box body.
[0009] 2. In the above solution, the mounting hole has a flange located inside the box body, and the flange is cooperatively connected with the fireproof cover shell.
[0010] 3. In the above solution, a fastener is installed at one end of the fireproof cover shell located in the box body, and the fastener is in close contact with the flange.
[0011] 4. In the above solution, a sealing door panel is provided on one side of the box body.
[0012] 5. In the above solution, the edge through hole is located at the edge of the middle gasket.
[0013] 6. In the above solution, a filter screen is provided at the other end of the fireproof cover shell, and the filter screen is located on the side opposite to the front gasket and the middle gasket.
[0014] 7. In the above solution, the gap width of the first gap is the same as that of the second gap.
[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0016] The utility model explosion-proof box, its fireproof cover shell is embedded in the installation hole of the box body, the other end of the fireproof cover shell is sequentially provided with a front gasket, a middle gasket and a rear gasket, the center of each of the front gasket and the rear gasket is provided with a central through hole, a first gap is provided between the front gasket and the middle gasket, a second gap is provided between the middle gasket and the rear gasket, at least two first gaskets located in the first gap are provided between the front gasket and the middle gasket, at least two second gaskets located in the second gap are provided between the middle gasket and the rear gasket, and the edge area where the middle gasket contacts with the fireproof cover shell is along the periphery A plurality of edge through holes are arranged at intervals. After the high-temperature, high-pressure gas with flames in the box enters the fireproof cover shell, it passes through the central through hole of the front gasket and passes through the first gap, the edge through hole, and the second gap in sequence. The narrow and small ventilation flow channel formed by the first gap, the edge through hole, and the second gap can block the flame from passing through, and then flows out through the central through hole of the rear gasket and is opened by the push-top pressure relief valve to release the flameless high-pressure gas. On the basis of achieving pressure relief, it can prevent the flame inside the box from jumping out during the pressure relief process, avoid causing an environmental explosion, and greatly improve the overall safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Attached Figure 1 This is a schematic diagram of the overall structure of the explosion-proof box of the utility model;
[0018] Attached Figure 2 It is a cross-sectional stereoscopic view of the explosion-proof box of the utility model;
[0019] Attached Figure 3 It is a partial structural section front view of the explosion-proof box of the utility model;
[0020] Attached Figure 4 For the utility model Figure 3Enlarged view of point A.
[0021] In the above drawings: 1. Fireproof cover shell; 2. Pressure relief valve; 3. Front gasket; 4. Middle gasket; 5. Rear gasket; 6. Center through hole; 7. First gap; 8. Second gap; 9. First pad; 10. Second pad; 11. Sealing door panel; 12. Edge through hole; 13. Filter; 14. Box; 15. Mounting hole; 16. Fastener; 17. Flange. DETAILED DESCRIPTION
[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.
[0023] Embodiment 1: An explosion-proof box, comprising: a box body 14 having a mounting hole 15, a fireproof cover shell 1 embedded in the mounting hole 15 of the box body 14, a pressure relief valve 2 is arranged at one end of the fireproof cover shell 1 located outside the box body 14, and a front gasket 3, a middle gasket 4 and a rear gasket 5 are arranged in sequence at the other end of the fireproof cover shell 1, and the peripheries of the front gasket 3 and the rear gasket 5 are respectively sealed and connected to the inner wall of the fireproof cover shell 1;
[0024] After the high-temperature, high-pressure gas with flames in the box enters the fireproof cover shell, it passes through the central through hole of the front gasket and passes through the first gap, the edge through hole, and the second gap in sequence. The narrow and small ventilation channel formed by the first gap, the edge through hole, and the second gap can block the flame from passing through, and then flows out through the central through hole of the rear gasket and opens through the push-top pressure relief valve to release the flameless high-pressure gas. On the basis of achieving pressure relief, it can prevent the flame inside the box from jumping out during the pressure relief process, avoid causing environmental explosion, and greatly improve the overall safety;
[0025] A central through hole 6 is formed at the center of each of the front gasket 3 and the rear gasket 5. A first gap 7 is formed between the front gasket 3 and the middle gasket 4. A second gap 8 is formed between the middle gasket 4 and the rear gasket 5. At least two first gasket blocks 9 located in the first gap 7 are arranged between the front gasket 3 and the middle gasket 4. At least two second gasket blocks 10 located in the second gap 8 are arranged between the middle gasket 4 and the rear gasket 5. A plurality of edge through holes 12 are arranged at intervals along the circumferential direction at the edge area where the middle gasket 4 contacts the fireproof cover shell 1.
[0026] By arranging the first pad and the second pad inside the first gap and the second gap respectively, support can be formed between the front pad, the middle pad and the rear gasket, which is beneficial to maintaining the gap channel and improving the overall pressure-bearing performance.
[0027] The mounting hole 15 has a flange 17 located inside the box body 14 , and the flange 17 is connected with the fireproof cover shell 1 ; a fastener 16 is installed at one end of the fireproof cover shell 1 located inside the box body 14 , and the fastener 16 is in close contact with the flange 17 .
[0028] The edge through hole 12 is located at the edge of the middle gasket 4 .
[0029] A filter screen 13 is disposed at the other end of the fireproof cover shell 1 , and the filter screen 13 is located on the side opposite to the front gasket 3 and the middle gasket 4 .
[0030] The number of the first cushion blocks 9 is four, which are evenly spaced around the central through hole 6 .
[0031] The number of the second cushion blocks 10 is four, which are evenly spaced around the central through hole 6 .
[0032] The first cushion block 9 and the middle cushion 4 are integrally arranged.
[0033] The second cushion block 10 is integrally provided with the middle cushion 4 .
[0034] Embodiment 2: An explosion-proof box, comprising: a box body 14 having a mounting hole 15, a fireproof cover shell 1 embedded in the mounting hole 15 of the box body 14, a pressure relief valve 2 is arranged at one end of the fireproof cover shell 1 located outside the box body 14, and a front gasket 3, a middle gasket 4 and a rear gasket 5 are arranged in sequence at the other end of the fireproof cover shell 1, and the peripheries of the front gasket 3 and the rear gasket 5 are respectively sealed and connected to the inner wall of the fireproof cover shell 1;
[0035] A central through hole 6 is formed at the center of each of the front gasket 3 and the rear gasket 5. A first gap 7 is formed between the front gasket 3 and the middle gasket 4. A second gap 8 is formed between the middle gasket 4 and the rear gasket 5. At least two first gasket blocks 9 located in the first gap 7 are arranged between the front gasket 3 and the middle gasket 4. At least two second gasket blocks 10 located in the second gap 8 are arranged between the middle gasket 4 and the rear gasket 5. A plurality of edge through holes 12 are arranged at intervals along the circumferential direction at the edge area where the middle gasket 4 contacts the fireproof cover shell 1.
[0036] A fastener 16 is installed at one end of the fireproof cover shell 1 located in the box body 14 .
[0037] A sealing door panel 11 is disposed on one side of the box body 14 .
[0038] The edge through hole 12 is located at the edge of the middle gasket 4 .
[0039] A filter screen 13 is provided at the other end of the fireproof cover shell 1. The filter screen 13 is located on the side opposite to the front gasket 3 and the middle gasket 4. The gas ejected from the explosion-proof cavity is filtered through the filter screen to prevent larger particles carried by the gas when rushing out from clogging the central through hole of the front gasket, the gaps between the front gasket, the middle gasket and the rear gasket, and the edge through holes, thereby ensuring the stability of the pressure relief and improving the reliability of the use of the pressure relief device.
[0040] The gap widths of the first gap 7 and the second gap 8 are the same.
[0041] The first cushion block 9 is integrally arranged with the front cushion.
[0042] The second cushion block 10 is integrally provided with the rear cushion plate 5 .
[0043] The first cushion block 9 and the second cushion block 10 are circular cushion blocks.
[0044] When the above-mentioned explosion-proof box is used, the high-temperature, high-pressure gas with flames in the box enters the fireproof cover shell through the central through hole of the front gasket and passes through the first gap, the edge through hole, and the second gap in sequence. The narrow and small ventilation flow channel formed by the first gap, the edge through hole, and the second gap can block the flame from passing through, and then flows out through the central through hole of the rear gasket and is opened by the push-top pressure relief valve to release the flameless high-pressure gas. On the basis of achieving pressure relief, it can prevent the flame inside the box from jumping out during the pressure relief process, avoid causing an environmental explosion, and greatly improve the overall safety.
[0045] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. An explosion-proof box, comprising: A box (14) having a mounting hole (15), characterized in that: a fireproof cover shell (1) is embedded in the mounting hole (15) of the box (14); a pressure relief valve (2) is arranged at one end of the fireproof cover shell (1) located outside the box (14); a front gasket (3), a middle gasket (4) and a rear gasket (5) are arranged in sequence at the other end of the fireproof cover shell (1); and the peripheries of the front gasket (3) and the rear gasket (5) are respectively sealed and connected to the inner wall of the fireproof cover shell (1); The front gasket (3) and the rear gasket (5) each have a central through hole (6) at their centers, a first gap (7) is provided between the front gasket (3) and the middle gasket (4), a second gap (8) is provided between the middle gasket (4) and the rear gasket (5), at least two first gasket blocks (9) located in the first gap (7) are arranged between the front gasket (3) and the middle gasket (4), at least two second gasket blocks (10) located in the second gap (8) are arranged between the middle gasket (4) and the rear gasket (5), and a plurality of edge through holes (12) are provided at intervals along the circumferential direction at the edge region of the middle gasket (4) in contact with the fireproof cover shell (1).
2. The explosion-proof box according to claim 1, characterized in that: A fastener (16) is installed at one end of the fireproof cover shell (1) located inside the box body (14).
3. The explosion-proof box according to claim 1, characterized in that: The mounting hole (15) has a flange (17) located inside the box body (14), and the flange (17) is connected to the fireproof cover shell (1).
4. The explosion-proof box according to claim 3, characterized in that: A fastener (16) is installed at one end of the fireproof cover shell (1) located inside the box body (14), and the fastener (16) is in close contact with the flange (17).
5. The explosion-proof box according to claim 1, characterized in that: A sealing door panel (11) is provided on one side of the box body (14).
6. The explosion-proof box according to claim 1, characterized in that: The edge through hole (12) is located at the edge of the middle gasket (4).
7. The explosion-proof box according to claim 1, characterized in that: A filter screen (13) is provided at the other end of the fireproof cover shell (1), and the filter screen (13) is located on the side opposite to the front gasket (3) and the middle gasket (4).
8. The explosion-proof box according to claim 1, characterized in that: The first gap (7) and the second gap (8) have the same gap width.