A coke oven basement sealing structure and its application

Abstract

The invention discloses a coke oven basement sealing structure and application thereof, comprising a gas main pipe, a connecting assembly, an adjusting assembly, a strong sealing assembly, an orifice box, an exchange cock, a cross pipe, a regulating valve body, a riser, a top plate, a fixing frame and a nozzle. A first connecting pipe is arranged on the top of the gas main pipe. In the invention, a fourth connecting pipe and the riser are connected to each other by utilizing the connecting assembly, and the installation and disassembly process is simple, which is convenient for replacing the riser and reduces the maintenance cost of the sealing structure. The nozzle is installed on one side of the fixing frame by the adjusting assembly, which is convenient for adjusting the position of the nozzle and improves the applicability of the sealing structure. The strong sealing assembly is arranged to forcefully seal the leaking part to avoid explosion caused by mixing and tempering of the coke oven gas and air in the basement, simplifying the repair process of the pipeline, and at the same time, auxiliary support is provided to the repaired part to prevent the repaired part from falling off and causing secondary leakage, thereby improving the stability of the seal.

Description

Technical Field

[0001] The invention relates to the technical field of coke oven basement sealing, in particular to a coke oven basement sealing structure and application thereof. Background Art

[0002] The coke oven basement is not only a workplace for adjusting the coke oven temperature, ensuring the quality of coke and the normal production of the coke oven, but also a place where gas is easily gathered and gas safety accidents are prone to occur. The coke oven basement is located at the bottom of the entire coke oven, with a closed and narrow space and poor ventilation. However, the risers in the existing coke oven basement sealing structure are mostly fixedly installed at the bottom of the top plate, which is difficult to install and disassemble, thereby increasing the maintenance cost of the sealing structure. At the same time, the nozzles are mostly fixedly connected to the bracket at the bottom of the top plate, and the position is difficult to adjust, affecting the applicability of the sealing structure. In addition, the existing sealing structure has a cumbersome process for the leaking parts of the pipeline, and the repaired parts are prone to fall off, causing secondary leakage, which in turn affects the stability of the seal. Therefore, it is very necessary to design a coke oven basement sealing structure and its application. Summary of the invention

[0003] The object of the present invention is to provide a coke oven basement sealing structure and application thereof to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coke oven basement sealing structure, comprising a gas main pipe, a connecting assembly, an adjusting assembly, a strong sealing assembly, an adjusting cock, an orifice box, a box body rear cover, an exchange cock, an exchange pipe, a horizontal pipe and a vertical pipe, wherein a first connecting pipe is arranged on the top of the gas main pipe, and the top end of the first connecting pipe is sleeved on the bottom of the adjusting cock, a second connecting pipe is arranged on the top of the adjusting cock, and an orifice box is arranged on the second connecting pipe, and a box body rear cover is arranged on one side of the orifice box.

[0005] Preferably, the top end of the second connecting tube is sleeved on the bottom end of the exchange cock, and a third connecting tube is provided on both sides of the exchange cock, the third connecting tube is sleeved in the through hole opened in the exchange tube, and the top end of the exchange tube is sleeved in the through hole opened in the bottom of the cross tube, a fourth connecting tube is provided on one side of the cross tube, and the fourth connecting tube is connected to the cross tube.

[0006] Preferably, a regulating valve body is provided on the fourth connecting tube, and one end of the fourth connecting tube is slidably connected to a sliding tube in a connecting assembly, and the connecting assembly consists of a sliding tube, a first connecting ring, a sealing gasket, a second connecting ring, a connecting platform and connecting bolts, a first connecting ring is provided at one end of the sliding tube, and connecting bolts are provided in through holes evenly opened on the first connecting ring.

[0007] Preferably, the connecting bolt is fitted and connected in a threaded hole opened on the second connecting ring, and a sealing gasket is provided at the connection between the first connecting ring and the second connecting ring, a connecting platform is provided on one side of the second connecting ring, and the connecting platform is welded in through holes opened on both sides of the bottom of the riser.

[0008] Preferably, the top end of the riser is sleeved in the fixing ring at the bottom of the top plate, and a fixing frame is provided at the bottom of the top plate, fixing bolts are provided in the through holes evenly provided on the fixing frame, and the fixing bolts are fitted and connected in the threaded grooves provided on the connecting frame, the inner walls of the connecting frame and the fixing frame are both in contact with the riser, and a sliding frame in the adjustment assembly is provided on one side of the fixing frame.

[0009] Preferably, the adjustment assembly consists of a sliding frame, a lifting slider, a sliding rod, an adjusting slider and a supporting frame, and the sliding frame is slidably connected to the lifting slider, a sliding rod is provided on one side of the lifting slider, and the sliding rod is slidably connected to the adjusting slider, the top of the adjusting slider is rotatably connected to the supporting frame, and a nozzle is sleeved in the supporting frame, the nozzle is fixed to one end of a connecting hose, and the other end of the connecting hose is sleeved in a through hole opened on one side of the compressed air pipe.

[0010] Preferably, the gas main pipe is slidably connected with a first bracket in a strong sealing assembly, and the strong sealing assembly is composed of a first bracket, a second bracket, bracket bolts and a sealing ring.

[0011] Preferably, a sealing ring is provided on the top of the first bracket, and bracket bolts are provided in the through holes evenly provided on the first bracket, the bracket bolts are fitted and connected in the threaded holes provided on the top of the second bracket, and the second bracket and the gas main pipe fit each other.

[0012] An application of a coke oven basement sealing structure includes the following steps: step one, assembly adjustment; step two, component inspection; step three, strong sealing treatment;

[0013] In the above step 1, the second connecting ring is fixed to one side of the first connecting ring by using the provided connecting bolts, so that the fourth connecting pipe and the vertical pipe are connected to each other, and the provided sealing gasket is used to seal to prevent gas leakage, and the height of the sliding rod, the support frame and the nozzle is adjusted by sliding the lifting slider, and the position of the nozzle is adjusted by sliding the adjusting slider;

[0014] In the above step 2, close the adjusting cocks corresponding to all the sealed combustion chamber numbers, and check whether the exchange cock on the upper part of the adjusting cock is short of oil. If so, immediately turn on the automatic lubrication device to replenish the lubricant, then manually check the exchange chain stroke, lever angle and front and rear position, and check whether the exchange cock is in a fully closed state after adjustment. If the position of the exchange cock is not correct and has not been adjusted in place, continue to check and deal with it, and then further check the grinding condition of the core and shell of the exchange cock to ensure reasonable lubrication, and adjust the top wire spring of the exchange cock to check whether the spring has pressure to ensure the exchange. Replace the plug tightly, then strengthen the lubrication between the rotating core and the shell of the regulating plug, and adjust the back cover of the regulating plug to make the back cover of the regulating plug have the necessary pressure. If the pressure of the back cover is insufficient, replace the back cover of the regulating plug immediately, and then observe the pressure of the orifice box. If the pressure is insufficient, replace the orifice box in time to ensure the normal operation of the orifice box, and then adjust and handle the connections between the basement horizontal pipe, exchange pipe and vertical pipe to see if there is any gas leakage in the basement. If so, tighten or add pads immediately, then check the switch position of the exchange plug, check the rotation angle of the switch, and make timely corrections and adjustments;

[0015] In the above step three, when a gas main leaks, the second bracket is fixed to the bottom of the first bracket by the provided bracket bolts, and then the repair agent is filled into the sealing ring on the first bracket, and the leaking part is forcibly sealed by wind pressure to avoid explosion caused by the mixing and backfire of the coke oven gas and air in the basement, thereby simplifying the pipeline repair process. At the same time, the first bracket and the second bracket are used to provide auxiliary support for the repaired part to prevent the repaired part from falling off and causing secondary leakage, thereby improving the stability of the seal.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the coke oven basement sealing structure and its application, the second connecting ring is fixed to one side of the first connecting ring by the provided connecting bolts, so that the fourth connecting pipe and the riser are interconnected, and the provided sealing gasket is used to improve the sealing of the connection, and the connecting bolts are removed and the regulating valve body is closed at the same time, that is, the riser is replaced, the installation and disassembly process is simple, and the maintenance cost of the sealing structure is reduced, the height of the sliding rod, the support frame and the nozzle is adjusted by sliding the lifting slider, and the position of the nozzle is adjusted by sliding the adjusting slider, thereby improving the applicability of the sealing structure, the second bracket is fixed to the bottom of the first bracket by the provided bracket bolts, and then the repair agent is filled into the sealing ring on the first bracket, and then forced sealing is performed by wind pressure, so as to avoid the mixing and backfire of the basement coke oven gas and air to produce explosion, simplifying the pipeline repair process, and at the same time, the first bracket and the second bracket are used to auxiliary support the repair part to prevent the repair part from falling off and causing secondary leakage, thereby improving the stability of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0019] Figure 3 for Figure 1 A partial enlarged view of the middle B area;

[0020] Figure 4 It is a three-dimensional diagram of the overall structure of the present invention;

[0021] Figure 5 for Figure 4 A partial enlarged view of the middle C area;

[0022] Figure 6 It is a schematic diagram of the installation of the connection assembly in the present invention;

[0023] Figure 7 is an application flow chart of the present invention;

[0024] In the figure: 1. gas main pipe; 2. connection assembly; 3. adjustment assembly; 4. strong sealing assembly; 5. first connection pipe; 6. adjustment cock; 7. second connection pipe; 8. orifice box; 9. box body back cover; 10. exchange cock; 11. third connection pipe; 12. exchange pipe; 13. horizontal pipe; 14. fourth connection pipe; 15. regulating valve body; 16. vertical pipe; 17. top plate; 18. fixing frame; 19. fixing bolt; 20. connection frame; 2 1. Nozzle; 22. Connecting hose; 23. Compressed air pipe; 201. Sliding tube; 202. First connecting ring; 203. Sealing pad; 204. Second connecting ring; 205. Connecting platform; 206. Connecting bolt; 301. Sliding frame; 302. Lifting slider; 303. Sliding rod; 304. Adjusting slider; 305. Support frame; 401. First bracket; 402. Second bracket; 403. Bracket bolt; 404. Sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6An embodiment of the present invention is as follows: a coke oven basement sealing structure comprises a gas main pipe 1, a connecting assembly 2, an adjusting assembly 3, a strong sealing assembly 4, an adjusting cock 6, an orifice box 8, a box body rear cover 9, an exchange cock 10, an exchange pipe 12, a horizontal pipe 13 and a vertical pipe 16. A first connecting pipe 5 is arranged on the top of the gas main pipe 1, and the top end of the first connecting pipe 5 is sleeved on the bottom of the adjusting cock 6. A second connecting pipe 7 is arranged on the top of the adjusting cock 6, and an orifice box 8 is arranged on the second connecting pipe 7. A box body rear cover 9 is arranged on one side of the orifice box 8. The top end of the second connecting pipe 7 is sleeved on the bottom end of the exchange cock 10, and third connecting pipes 11 are arranged on both sides of the exchange cock 10, and the third connecting pipe 11 is sleeved in the through hole opened in the exchange pipe 12. , and the top end of the exchange tube 12 is sleeved in the through hole opened at the bottom of the cross tube 13, a fourth connecting tube 14 is provided on one side of the cross tube 13, and the fourth connecting tube 14 is communicated with the cross tube 13, a regulating valve body 15 is provided on the fourth connecting tube 14, and one end of the fourth connecting tube 14 is slidably connected with the sliding tube 201 in the connecting component 2, the connecting component 2 is composed of the sliding tube 201, the first connecting ring 202, the sealing gasket 203, the second connecting ring 204, the connecting platform 205 and the connecting bolt 206, one end of the sliding tube 201 is provided with the first connecting ring 202, and the connecting bolt 206 is provided in the through hole evenly opened on the first connecting ring 202, the connecting bolt 206 is matched and connected in the threaded hole opened on the second connecting ring 204, and the first A sealing gasket 203 is provided at the connection between the first connecting ring 202 and the second connecting ring 204, a connecting platform 205 is provided on one side of the second connecting ring 204, and the connecting platform 205 is welded in the through holes opened on both sides of the bottom of the vertical pipe 16, the top end of the vertical pipe 16 is sleeved in the fixing ring at the bottom of the top plate 17, and a fixing frame 18 is provided at the bottom of the top plate 17, and fixing bolts 19 are provided in the through holes evenly opened on the fixing frame 18, and the fixing bolts 19 are matched and connected in the threaded grooves opened in the connecting frame 20, the inner walls of the connecting frame 20 and the fixing frame 18 are both in contact with the vertical pipe 16, and a sliding frame 301 in the adjusting component 3 is provided on one side of the fixing frame 18, and the adjusting component 3 is composed of a sliding frame 301, a lifting slider 302, a sliding rod 303, and an adjusting slider The gas main pipe 1 is composed of a first bracket 401 in a strong sealing component 4, and the strong sealing component 4 is composed of a first bracket 401, a second bracket 402, a bracket bolt 403 and a sealing ring 404. The top of the first bracket 401 is provided with a sealing ring 404.The through holes evenly opened on the first bracket 401 are provided with bracket bolts 403, which are matched and connected to the threaded holes opened on the top of the second bracket 402, and the second bracket 402 and the gas main pipe 1 fit each other. The bracket bolts 403 are used to fix the second bracket 402 to the bottom of the first bracket 401, and then the sealing ring 404 is fixed to the leakage part of the gas main pipe 1 through the mutual cooperation between the first bracket 401 and the second bracket 402, which is conducive to improving the structural stability.

[0027] See also Figure 7 , an embodiment provided by the present invention: an application of a coke oven basement sealing structure, comprising the following steps: step one, assembly adjustment; step two, component inspection; step three, strong sealing treatment;

[0028] In the above step 1, the second connecting ring 204 is fixed to one side of the first connecting ring 202 by using the connecting bolt 206, so that the fourth connecting pipe 14 and the vertical pipe 16 are connected to each other, and the sealing gasket 203 is used to seal to prevent gas leakage, and the height of the sliding rod 303, the support frame 305 and the nozzle 21 is adjusted by sliding the lifting slider 302, and the position of the nozzle 21 is adjusted by sliding the adjusting slider 304;

[0029] In the above step 2, close the adjusting cocks 6 corresponding to all the sealed combustion chamber numbers, and check whether the exchange cock 10 on the upper part of the adjusting cock 6 is short of oil. If so, immediately turn on the automatic lubrication device to replenish the lubricant, then manually check the exchange chain stroke, lever angle and front and rear position, and check whether the exchange cock 10 is in a fully closed state after adjustment. If the position of the exchange cock 10 is not correct and has not been adjusted in place, continue to check and deal with it, and then further check the grinding condition of the core and shell of the exchange cock 10 to ensure reasonable lubrication, and adjust the top wire spring of the exchange cock 10 to check whether the spring has pressure to ensure that the exchange cock is properly lubricated. Check the tightness of the plug 10, then strengthen the lubrication between the rotating core and the shell of the regulating cock 6, and adjust the rear cover of the regulating cock 6 so that the rear cover of the regulating cock 6 has the necessary pressure. If the pressure of the rear cover is insufficient, immediately replace the rear cover of the regulating cock 6, then observe the pressure of the orifice box 8, if the pressure is insufficient, replace the orifice box 8 in time to ensure the normal operation of the orifice box 8, then adjust and handle the two-to-two connections of the basement horizontal pipe 13, the exchange pipe 12 and the vertical pipe 16, whether there is a gas leakage in the basement, if so, immediately tighten or add pads, then check the switch position of the exchange cock 10, check the rotation angle of the switch, and make timely corrections and adjustments;

[0030] In the above step three, when the gas main pipe 1 leaks, the second bracket 402 is fixed to the bottom of the first bracket 401 by using the provided bracket bolts 403, and then the repair agent is filled into the sealing ring 404 on the first bracket 401, and then the leaking part is forcibly sealed by wind pressure to avoid the mixing and backfire of the basement coke oven gas and air to produce explosions, thereby simplifying the pipeline repair process. At the same time, the first bracket 401 and the second bracket 402 are used to provide auxiliary support for the repaired part to prevent the repaired part from falling off and causing secondary leakage, thereby improving the stability of the seal.

[0031] Based on the above, the advantage of the present invention is that when the present invention is in use, the second connecting ring 204 is fixed to one side of the first connecting ring 202 by using the provided connecting bolts 206, so that the fourth connecting pipe 14 and the vertical pipe 16 are connected to each other, and the provided sealing gasket 203 is used to improve the sealing of the connection, and the connecting bolts 206 are removed and the regulating valve body 15 is closed at the same time, that is, the vertical pipe 16 is replaced, the installation and disassembly process is simple, and the maintenance cost of the sealing structure is reduced, and the height of the sliding rod 303, the support frame 305 and the nozzle 21 is adjusted by sliding the lifting slider 302, and the sliding adjustment slider is 304 is used to adjust the position of the nozzle 21, thereby improving the applicability of the sealing structure, and the second bracket 402 is fixed to the bottom of the first bracket 401 by using the set bracket bolts 403, and then the repair agent is filled into the sealing ring 404 on the first bracket 401, and then the leaking part is forcibly sealed by wind pressure to avoid the mixing and backfire of the coke oven gas and air in the basement to produce explosions, thereby simplifying the pipeline repair process, and at the same time, the first bracket 401 and the second bracket 402 are used to provide auxiliary support for the repaired part to prevent the repaired part from falling off and causing secondary leakage, thereby improving the stability of the seal.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A coke oven basement sealing structure, comprising a gas main (1), a connecting assembly (2), an adjusting assembly (3), a strong sealing assembly (4), an adjusting cock (6), an orifice box (8), a box body rear cover (9), an exchange cock (10), an exchange pipe (12), a horizontal pipe (13) and a vertical pipe (16), characterized in that: A first connecting pipe (5) is arranged on the top of the gas main pipe (1), and the top end of the first connecting pipe (5) is sleeved on the bottom of the regulating cock (6), a second connecting pipe (7) is arranged on the top of the regulating cock (6), and an orifice box (8) is arranged on the second connecting pipe (7), and a box body rear cover (9) is arranged on one side of the orifice box (8); The top end of the second connecting pipe (7) is sleeved on the bottom end of the exchange cock (10), and third connecting pipes (11) are arranged on both sides of the exchange cock (10), the third connecting pipe (11) is sleeved in a through hole opened in the exchange pipe (12), and the top end of the exchange pipe (12) is sleeved in a through hole opened in the bottom of the transverse pipe (13), a fourth connecting pipe (14) is arranged on one side of the transverse pipe (13), and the fourth connecting pipe (14) and the transverse pipe (13) are communicated with each other; The fourth connecting pipe (14) is provided with a regulating valve body (15), and one end of the fourth connecting pipe (14) is slidably connected to a sliding pipe (201) in a connecting assembly (2), the connecting assembly (2) comprising a sliding pipe (201), a first connecting ring (202), a sealing gasket (203), a second connecting ring (204), a connecting platform (205) and connecting bolts (206), one end of the sliding pipe (201) is provided with a first connecting ring (202), and connecting bolts (206) are provided in through holes uniformly provided on the first connecting ring (202); The connecting bolt (206) is connected in a threaded hole provided on the second connecting ring (204), and a sealing gasket (203) is provided at the connection between the first connecting ring (202) and the second connecting ring (204). A connecting platform (205) is provided on one side of the second connecting ring (204), and the connecting platform (205) is welded to through holes provided on both sides of the bottom of the riser (16).

2. A coke oven basement sealing structure according to claim 1, characterized in that: The top end of the vertical pipe (16) is sleeved in a fixing ring at the bottom of the top plate (17), and a fixing frame (18) is provided at the bottom of the top plate (17). Fixing bolts (19) are provided in through holes evenly provided on the fixing frame (18), and the fixing bolts (19) are matched and connected in thread grooves provided on the connecting frame (20). The inner walls of the connecting frame (20) and the fixing frame (18) are both in contact with the vertical pipe (16), and a sliding frame (301) in the adjustment component (3) is provided on one side of the fixing frame (18).

3. A coke oven basement sealing structure according to claim 2, characterized in that: The adjustment component (3) is composed of a sliding frame (301), a lifting slider (302), a sliding rod (303), an adjustment slider (304) and a support frame (305), wherein the sliding frame (301) is slidably connected to the lifting slider (302), a sliding rod (303) is provided on one side of the lifting slider (302), and the adjustment slider (304) is slidably connected to the sliding rod (303), the top of the adjustment slider (304) is rotatably connected to the support frame (305), and a nozzle (21) is sleeved in the support frame (305), the nozzle (21) is fixed to one end of a connecting hose (22), and the other end of the connecting hose (22) is sleeved in a through hole opened on one side of the compressed air pipe (23).

4. A coke oven basement sealing structure according to claim 3, characterized in that: The gas main pipe (1) is slidably connected to a first bracket (401) in a strong sealing assembly (4), and the strong sealing assembly (4) is composed of a first bracket (401), a second bracket (402), bracket bolts (403) and a sealing ring (404).

5. A coke oven basement sealing structure according to claim 4, characterized in that: A sealing ring (404) is provided at the top of the first bracket (401), and bracket bolts (403) are provided in through holes evenly provided on the first bracket (401), the bracket bolts (403) are matched and connected in threaded holes provided at the top of the second bracket (402), and the second bracket (402) and the gas main pipe (1) are fitted to each other.

6. The application of the coke oven basement sealing structure according to claim 5 comprises the following steps: Step 1: assembly adjustment; Step 2: component inspection; Step 3: strong sealing treatment; It is characterized by: In the above step 1, the second connecting ring (204) is fixed to one side of the first connecting ring (202) by using the provided connecting bolts (206), thereby making the fourth connecting pipe (14) and the vertical pipe (16) communicate with each other, and the provided sealing gasket (203) is used to seal to prevent gas leakage, and the height of the sliding rod (303), the support frame (305) and the nozzle (21) is adjusted by sliding the lifting slider (302), and the position of the nozzle (21) is adjusted by sliding the adjusting slider (304); In the above step 2, close all the regulating cocks (6) corresponding to the number of sealed combustion chambers, and check whether the exchange cock (10) on the upper part of the regulating cock (6) is short of oil. If so, immediately start the automatic lubrication device to replenish the lubricant, then manually check the exchange chain stroke, lever angle and front and rear position, and after adjustment, check whether the exchange cock (10) is in a fully closed state. If the position of the exchange cock (10) is not correct, it is necessary to continue to check and process if it is not adjusted in place, and then further check the grinding condition of the core and shell of the exchange cock (10) to ensure reasonable lubrication, and adjust the top wire spring of the exchange cock (10) to check whether the spring has pressure to ensure the exchange cock (10). Tight, then strengthen lubrication between the rotating core and the shell of the regulating cock (6), and adjust the rear cover of the regulating cock (6) so that the rear cover of the regulating cock (6) has the necessary pressure. If the pressure of the rear cover is insufficient, immediately replace the rear cover of the regulating cock (6), then observe the pressure of the orifice box (8), if the pressure is insufficient, replace the orifice box (8) in time to ensure the normal operation of the orifice box (8), then adjust and process the joints of the basement horizontal pipe (13), the exchange pipe (12) and the vertical pipe (16), and check whether there is gas leakage in the basement. If there is, tighten or add pads immediately, then check the switch position of the exchange cock (10), check the rotation angle of the switch, and make timely corrections and adjustments; In the above step 3, when the gas main (1) leaks, the second bracket (402) is fixed to the bottom of the first bracket (401) by using the bracket bolts (403), and then the repair agent is filled into the sealing ring (404) on the first bracket (401), and then the leaking part is forcibly sealed by wind pressure to avoid the mixing and tempering of the basement coke oven gas and air to produce explosions, thereby simplifying the pipeline repair process. At the same time, the first bracket (401) and the second bracket (402) are used to provide auxiliary support for the repaired part to prevent the repaired part from falling off and causing secondary leakage, thereby improving the stability of the seal.

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