Boiler pressure vessel with leak-proof structure

By adopting a double-connected sealing structure and a real-time monitoring system in the boiler pressure vessel, the leakage problem caused by structural design is solved, and better sealing effect and leakage detection efficiency are achieved.

CN119164101AInactive Publication Date: 2024-12-20YANTAI SPECIAL EQUIP INSPECTION & RES INST
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Patent Information

Application Number
CN202410648813.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2024-12-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The structural design of the existing boiler pressure vessels has defects, which can easily lead to leakage, inadequate sealing measures, and low leakage monitoring efficiency.

Method used

Adopt a double-connected sealing structure, including sealing plate, annular airbag, sealing cover, piston head, screw, rotating gear and limit block and other components. The sealing connection is achieved through the sliding block and rack system, and gas analysis is installed on the sealing head The instrument, pressure sensor, temperature sensor and acoustic detector are used for real-time monitoring.

Benefits of technology

It improves the leakage prevention effect of boiler pressure vessels, can promptly detect and deal with leakage at the connections, and has more comprehensive sealing measures to ensure that the container operates within the normal range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of boiler pressure vessels, particularly relates to a boiler pressure vessel with a leak-proof structure, and aims to solve the problems that the structural design of an existing boiler pressure vessel has defects, the structure is unreasonable, leakage is easily caused in the use process of the vessel, sealing measures are not in place, and the leakage monitoring efficiency of the boiler pressure vessel is low. According to the technical scheme, the boiler comprises a boiler barrel, a first butt joint pipe, an end socket and a second butt joint pipe, a sealing plate is welded to the inner wall of the boiler barrel, the first butt joint pipe is welded to the sealing plate, the end socket is installed at one end of the boiler barrel, a connecting assembly is arranged on the boiler barrel, and the connecting assembly is connected with the end socket. The boiler pressure container is reasonable in structural design, double connection sealing is adopted, the leakage prevention effect is better, leakage at the connecting position of the container can be found and treated in time, and sealing measures are comprehensive.
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Description

Technical Field

[0001] The invention relates to the technical field of boiler pressure vessels, and in particular to a boiler pressure vessel with an anti-leakage structure. Background Art

[0002] Boiler pressure vessel is a special equipment used to heat water into hot water or steam using the thermal energy of fuel or other energy sources. Boiler pressure vessel is generally composed of two parts: pot and furnace. The pot refers to a water container heated on fire, and the furnace refers to a place where fuel is burned. After searching, the publication number CN115638369B discloses a boiler pressure vessel with a leak-proof structure, including an annular split expansion seal clamping mechanism, a suspended top cover mechanism, an adaptive telescopic crack filling mechanism and an integrated pressure vessel assembly;

[0003] The existing boiler pressure vessel has structural design defects and unreasonable structure, which easily leads to leakage of the container during use. The sealing measures are not in place, and the leakage monitoring efficiency of the boiler pressure vessel is low. Summary of the invention

[0004] In order to solve the problems that the structural design of boiler pressure vessels is defective, the structure is unreasonable, and the container easily leaks during use and the sealing measures are not in place, the present application provides a boiler pressure vessel with a leakage-proof structure.

[0005] The boiler pressure vessel with a leakage-proof structure provided in the present application adopts the following technical solution:

[0006] A boiler pressure vessel with a leak-proof structure comprises a boiler cylinder, a butt-joint pipe 1, a head and a butt-joint pipe 2, a sealing plate being welded on the inner wall of the boiler cylinder, the butt-joint pipe 1 being welded on the sealing plate, the head being mounted on one end of the boiler cylinder, a connecting assembly being provided on the boiler cylinder, the connecting assembly being connected to the head, a fixing hole being provided on one side of the head, the butt-joint pipe 2 being fixedly mounted in the fixing hole, an assembly plate being fixedly sleeved on the butt-joint pipe 1, a sealing cover being slidably sleeved on the butt-joint pipe 2, the sealing cover being mounted on the assembly plate, an annular airbag being fixedly connected to the inner wall of the sealing cover, a plurality of inflation grooves being provided on the inner wall of the sealing cover, piston heads being slidably mounted in the plurality of inflation grooves , a thread groove 1 is provided at one end of several piston heads, a screw rod 1 is rotatably connected on the inner wall of several inflation grooves, the screw rod 1 is threadedly installed in the corresponding thread groove 1, a plurality of grooves are provided on the outer ring of the sealing cover, a rotating gear is rotatably connected on the inner wall of several grooves, a bevel gear 2 is fixedly installed at one end of several rotating gears, a bevel gear 1 is fixedly installed at one end of several screw rods 1, the bevel gear 1 is meshed with the corresponding bevel gear 2, an internal gear 1 is rotatably provided on the sealing cover, several rotating gears are meshed with the internal gear 1, a rotating gear 1 is fixedly provided on the internal gear 1, a rotating gear 2 is rotatably connected to one side of the sealing plate, and the rotating gear 2 is meshed with the rotating gear 1.

[0007] By adopting the above technical scheme, the structural design of the boiler pressure vessel is reasonable, and double connection sealing is adopted, which has a better anti-leakage effect. Leakage at the connection of the container can also be discovered and handled in time, and the sealing measures are relatively comprehensive.

[0008] Specifically, the connecting assembly includes several control panels and several limit blocks. One side of the sealing plate is provided with several sliding grooves, and sliding blocks are slidably installed in the several sliding grooves. One end of several sliding blocks is fixedly installed with control panels, and one side of several control panels is fixedly installed with limit blocks. Several limit grooves are provided on the inner wall of the head, and the limit blocks are installed in the corresponding limit grooves.

[0009] By adopting the above technical solution, the end cap can be fixed on the boiler cylinder after the limiting block is inserted into the limiting groove.

[0010] Specifically, a threaded hole is opened at one end of several sliding blocks, a screw rod three is rotatably installed on the inner wall of several sliding grooves, and the screw rod three is threadedly installed in the corresponding threaded hole, and a control knob is fixedly installed at one end of several screw rods three, and several control knobs are arranged on the outside of the boiler cylinder.

[0011] By adopting the above technical solution, the control knob drives the corresponding screw rod three to rotate, the screw rod three drives the corresponding sliding block to move, and the sliding block drives the limit block on the control panel to move.

[0012] Specifically, a moving groove is opened on the inner wall of the sliding groove, a rack is fixedly installed on one end of the sliding block, and the rack is slidably connected in the moving groove. A connecting rod is rotatably installed on the inner wall of one side of the moving groove, one end of the connecting rod is fixedly installed on the rotating gear 2, and a control gear is fixedly installed on the other end of the connecting rod, and the rack is meshed with the control gear.

[0013] By adopting the above technical solution, the sliding block drives the rack to move, the rack drives the control gear to rotate, the control gear drives the second rotating gear to rotate, and the second rotating gear drives the rotating gear and the first internal gear to rotate.

[0014] Specifically, a circular plate is fixedly sleeved on the second butt-joint pipe, a plurality of adjustment grooves are opened on one side of the circular plate, a plurality of telescopic rods are fixedly installed on one side of the sealing cover, and the telescopic rods are slidably installed in the corresponding adjustment grooves.

[0015] By adopting the above technical solution, the telescopic rod slides in the adjustment groove, and the position of the sealing cover on the second butt joint pipe can be adjusted.

[0016] Specifically, one end of the plurality of telescopic rods is provided with a second threaded groove, and the inner walls of the plurality of adjustment grooves are rotatably connected with a second screw rod, which is threadably installed in the corresponding second threaded groove.

[0017] Specifically, the annular plate is provided with a plurality of fixed grooves, in which driving gears are rotatably installed, one end of the second screw rod is fixedly connected to the corresponding driving gear, and the annular plate is rotatably sleeved with an internal gear 2, which is meshed with the driving gear.

[0018] Specifically, a sealing gasket 1 is fixedly mounted on the inner wall of the sealing cover, and the sealing gasket 1 is in contact with one side of the assembly plate.

[0019] By adopting the above technical solution, the sealing gasket 1 can improve the sealing performance when the sealing cover is connected to the assembly plate.

[0020] Specifically, one end of the boiler cylinder and the end cap are both fixedly mounted with a sealing gasket 2, and the two sealing gaskets 2 are fitted together.

[0021] By adopting the above technical solution, the sealing gasket 2 can improve the sealing performance when the boiler shell and the head are connected.

[0022] Specifically, a gas analyzer, a pressure sensor, a temperature sensor and an acoustic wave detector are fixedly mounted on the inner wall of the sealing head, and a plurality of reinforcing plates are fixedly mounted on the sealing head.

[0023] By adopting the above technical scheme, the temperature sensor is used to monitor the internal temperature changes of the boiler pressure vessel to prevent overheating or overcooling from damaging the container. The pressure sensor is used to monitor the internal pressure changes of the boiler pressure vessel to ensure that the container operates within the normal range. The acoustic wave detector determines whether there is a leak by detecting the changes in the acoustic wave signal inside the container. The gas analyzer determines whether there is a leak by analyzing the changes in the gas composition inside the container.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) By rotating the inner gear 2, the use position of the sealing cover on the butt-joint pipe 2 can be adjusted, and the butt-joint pipe 2 on the head is docked with the butt-joint pipe 1. At the same time, the head is installed on the boiler cylinder. The connection between the butt-joint pipe 1 and the butt-joint pipe 2 is set in the area between the sealing plate and the head. After the limit block is inserted into the limit groove, the head can be fixed on the boiler cylinder.

[0026] (2) The rack is driven to move by the sliding block, and multiple piston heads inflate the annular airbag, causing the annular airbag to expand and seal against the assembly plate, thereby achieving the fixation and sealing connection of the butt joint pipe 1 and the butt joint pipe 2.

[0027] (3) The reinforcement plate can improve the reinforcement and stability of the head. The temperature sensor is used to monitor the internal temperature changes of the boiler pressure vessel to prevent overheating or overcooling from damaging the container. The pressure sensor is used to monitor the internal pressure changes of the boiler pressure vessel to ensure that the container operates within the normal range. The acoustic wave detector determines whether there is a leak by detecting the changes in the acoustic wave signal inside the container. The gas analyzer determines whether there is a leak by analyzing the changes in the gas composition inside the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a boiler pressure vessel with an anti-leakage structure proposed by the present invention;

[0029] Figure 2 This is a schematic diagram of the main structure of a boiler pressure vessel with an anti-leakage structure proposed by the present invention;

[0030] Figure 3 A three-dimensional structural schematic diagram of a butt pipe 1, a sealing plate, an assembly plate, a rotating gear 2 and a control plate of a boiler pressure vessel with a leak-proof structure proposed by the present invention;

[0031] Figure 4 A three-dimensional structural schematic diagram of a butt pipe 2, a sealing gasket 1, an annular airbag, a sealing cover, an internal gear 1 and a rotating gear 1 of a boiler pressure vessel with a leak-proof structure proposed by the present invention;

[0032] Figure 5A schematic diagram of the three-dimensional structure of a butt-joint pipe 2, a sealing cover, an internal gear 1, a rotating gear 1, a circular ring plate, a telescopic rod and an internal gear 2 of a boiler pressure vessel with a leak-proof structure proposed by the present invention;

[0033] Figure 6 for Figure 2 The enlarged view of point A in the middle;

[0034] Figure 7 for Figure 2 The enlarged view of point B in the middle;

[0035] Figure 8 for Figure 6 Enlarged view of point C in the middle.

[0036] In the figure: 1. boiler cylinder; 2. butt pipe 1; 3. end cap; 4. butt pipe 2; 5. pressure sensor; 6. gas analyzer; 7. temperature sensor; 8. acoustic wave detector; 9. reinforcement plate; 10. sealing plate; 11. assembly plate; 12. sealing cover; 13. sealing gasket 1; 14. annular air bag; 15. piston head; 16. screw rod 1; 17. bevel gear 1; 18. rotating gear; 19. bevel gear 2; 20. internal gear 1; 21. rotating gear 1; 22. circular ring plate; 23. telescopic rod; 24. screw rod 2; 25. driving gear; 26. internal gear 2; 27. rotating gear 2; 28. sliding block; 29. ​​control board; 30. limit block; 31. rack; 32. control gear; 33. screw rod 3; 34. control knob; 35. sealing gasket 2. DETAILED DESCRIPTION

[0037] Below, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of embodiments of the present invention. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of concepts of the present invention.

[0038] Reference Figure 1-8A boiler pressure vessel with a leak-proof structure comprises a boiler cylinder 1, a butt-joint pipe 2, a head 3 and a butt-joint pipe 4, a sealing plate 10 is welded on the inner wall of the boiler cylinder 1, the butt-joint pipe 2 is welded on the sealing plate 10, the head 3 is installed at one end of the boiler cylinder 1, and a sealing gasket 2 35 is fixedly installed on one end of the boiler cylinder 1 and the head 3, and the two sealing gaskets 2 35 are fitted together, a fixing hole is opened on one side of the head 3, and the butt-joint pipe 2 4 is fixedly installed in the fixing hole, a gas analyzer 6, a pressure sensor 5, a temperature sensor 7 and an acoustic wave detector 8 are fixedly installed on the inner wall of the head 3, and a fixed sleeve is provided on the butt-joint pipe 2 There is an assembly plate 11, a sealing cover 12 is slidably sleeved on the butt joint pipe 4, the sealing cover 12 is installed on the assembly plate 11, a sealing gasket 13 is fixedly installed on the inner wall of the sealing cover 12, the sealing gasket 13 is in contact with one side of the assembly plate 11, an annular airbag 14 is fixedly connected to the inner wall of the sealing cover 12, a plurality of inflation grooves are provided on the inner wall of the sealing cover 12, a plurality of piston heads 15 are slidably installed in the inflation grooves, a plurality of piston heads 15 are provided with a threaded groove 1 at one end, a plurality of screw rods 16 are rotatably connected to the inner walls of the inflation grooves, the screw rods 16 are threadedly installed in the corresponding threaded grooves, the sealing cover 1 2 is provided with a plurality of grooves on the outer ring, and a plurality of grooves are rotatably connected with rotating gears 18 on the inner walls, and a plurality of rotating gears 18 are fixedly installed with bevel gears 19 at one end, and a plurality of screw rods 16 are fixedly installed with bevel gears 17 at one end, and the bevel gears 17 are meshed with the corresponding bevel gears 19, and an internal gear 20 is rotatably sleeved on the sealing cover 12, and a plurality of rotating gears 18 are meshed with the internal gear 20, and a rotating gear 21 is fixedly sleeved on the internal gear 20, and a rotating gear 27 is rotatably connected with one side of the sealing plate 10, and the rotating gear 27 is meshed with the rotating gear 21, and one side of the sealing plate 10 A plurality of sliding grooves are provided on the side, and sliding blocks 28 are slidably installed in the plurality of sliding grooves, and a control panel 29 is fixedly installed on one end of the plurality of sliding blocks 28, and a limiting block 30 is fixedly installed on one side of the plurality of control panels 29. A plurality of limiting grooves are provided on the inner wall of the head 3, and the limiting blocks 30 are installed in the corresponding limiting grooves. A threaded hole is provided on one end of the plurality of sliding blocks 28, and a screw rod 33 is rotatably installed on the inner wall of the plurality of sliding grooves, and the screw rod 33 is threadedly installed in the corresponding threaded hole, and a control knob 34 is fixedly installed on one end of the plurality of screw rods 33, and the plurality of control knobs 34 are arranged on the outer side of the boiler cylinder 1.

[0039] In this embodiment, a moving groove is opened on the inner wall of the sliding groove, a rack 31 is fixedly installed on one end of the sliding block 28, and the rack 31 is slidably connected in the moving groove. A connecting rod is rotatably installed on the inner wall of one side of the moving groove, one end of the connecting rod is fixedly installed on the rotating gear 27, and a control gear 32 is fixedly installed on the other end of the connecting rod, and the rack 31 is meshed with the control gear 32.

[0040] In this embodiment, a circular plate 22 is fixedly sleeved on the butt joint pipe 24, and a plurality of adjustment grooves are provided on one side of the circular plate 22. A plurality of telescopic rods 23 are fixedly installed on one side of the sealing cover 12. The telescopic rods 23 are slidably installed in the corresponding adjustment grooves. A threaded groove 2 is provided at one end of the plurality of telescopic rods 23. A screw rod 24 is rotatably connected to the inner walls of the plurality of adjustment grooves. The screw rod 24 is threadedly installed in the corresponding threaded groove 2. A plurality of fixed grooves are provided on the circular plate 22. A driving gear 25 is rotatably installed in the plurality of fixed grooves. One end of the screw rod 24 is fixedly connected to the corresponding driving gear 25. An internal gear 26 is rotatably sleeved on the circular plate 22, and the internal gear 26 is meshed with the driving gear 25.

[0041] In this embodiment, a plurality of reinforcing plates 9 are fixedly mounted on the head 3 .

[0042] In this embodiment, the internal gear 26 is rotated, the internal gear 26 drives the plurality of driving gears 25 to rotate, the plurality of driving gears 25 drive the corresponding screw rod 24 to rotate, the screw rod 24 drives the corresponding telescopic rod 23 to move, the telescopic rod 23 drives the sealing cover 12 to move, the use position of the sealing cover 12 on the butt joint pipe 2 4 can be adjusted, the butt joint pipe 2 4 on the head 3 is butted with the butt joint pipe 1 2, and the head 3 is installed on the boiler cylinder 1, and the connection between the butt joint pipe 1 2 and the butt joint pipe 2 4 is set between the sealing plate 10 and the head 3 In the area between the sealing gasket 13 and the assembly plate 11, the rotating gear 1 21 on the sealing cover 12 is meshed with the rotating gear 2 27, and a plurality of control knobs 34 are turned, and the control knobs 34 drive the corresponding screw rods 33 to rotate, and the screw rods 33 drive the corresponding sliding blocks 28 to move, and the sliding blocks 28 drive the limit blocks 30 on the control plate 29 to move, and the limit blocks 30 can be inserted into the limit grooves to fix the head 3 on the boiler shell 1, and at the same time, the sliding blocks 28 drive the racks 31 to move, and the racks 31 drive the control gears 32 Rotate, control gear 32 drives rotating gear 27 to rotate, rotating gear 27 drives rotating gear and inner gear 1 20 to rotate, inner gear 1 20 drives several rotating gears 18 to rotate, rotating gear 18 drives corresponding bevel gear 2 19 to rotate, bevel gear 2 19 drives bevel gear 1 17 and screw 1 16 to rotate, screw 16 drives corresponding piston head 15 to move, multiple piston heads 15 inflate the annular airbag 14, and make the annular airbag 14 expand and seal on the assembly plate 11, which can realize the fixed and sealed connection of butt joint 1 2 and butt joint 2 4, reinforcement plate 9 can improve the reinforcement and stability of head 3, temperature sensor 7 is used to monitor the internal temperature change of boiler pressure vessel to prevent overheating or overcooling from damaging the container, pressure sensor 5 is used to monitor the internal pressure change of boiler pressure vessel to ensure that the container operates within the normal range, sound wave detector 8 judges whether there is leakage by detecting the change of sound wave signal inside the container, gas analyzer 6 judges whether there is leakage by analyzing the change of gas composition inside the container.

[0043] The technical progress achieved by the present invention compared with the prior art is that the boiler pressure vessel of the present invention has a reasonable structural design, adopts double connection sealing, has a better anti-leakage effect, and can be discovered and handled in time after leakage occurs at the connection of the container, and the sealing measures are relatively comprehensive.

Claims

1. A boiler pressure vessel with a leak-proof structure, characterized in that: The invention comprises a boiler cylinder (1), a butt-joint pipe (2), a head (3) and a butt-joint pipe (4), wherein a sealing plate (10) is welded on the inner wall of the boiler cylinder (1), the butt-joint pipe (2) is welded on the sealing plate (10), the head (3) is installed on one end of the boiler cylinder (1), a connecting assembly is provided on the boiler cylinder (1), the connecting assembly is connected to the head (3), a fixing hole is opened on one side of the head (3), and the butt-joint pipe (4) is fixed The butt joint pipe (2) is fixedly installed in the fixing hole, the fixing sleeve on the butt joint pipe (2) is provided with an assembly plate (11), the sliding sleeve on the butt joint pipe (4) is provided with a sealing cover (12), the sealing cover (12) is installed on the assembly plate (11), the inner wall of the sealing cover (12) is fixedly connected with an annular air bag (14), the inner wall of the sealing cover (12) is provided with a plurality of inflation grooves, and piston heads (15) are slidably installed in the plurality of inflation grooves, and the plurality of piston heads (15) ) are provided with a thread groove 1 at one end, and a plurality of the inner walls of the inflation grooves are rotatably connected with a screw rod 1 (16), and the screw rod 1 (16) is threadedly installed in the corresponding thread groove 1. The outer ring of the sealing cover (12) is provided with a plurality of grooves, and the inner walls of the plurality of grooves are rotatably connected with a rotating gear (18), and one end of the plurality of rotating gears (18) is fixedly installed with a bevel gear 2 (19), and one end of the plurality of screw rods 1 (16) is fixedly installed with a bevel gear 1 (17), and the bevel gear 1 (17) is meshed with the corresponding bevel gear 2 (19). The sealing cover (12) is rotatably provided with an internal gear 1 (20), and the plurality of rotating gears (18) are meshed with the internal gear 1 (20). A rotating gear 1 (21) is fixedly provided on the internal gear 1 (20), and one side of the sealing plate (10) is rotatably connected with a rotating gear 2 (27), and the rotating gear 2 (27) is meshed with the rotating gear 1 (21).

2. A boiler pressure vessel with a leak-proof structure according to claim 1, characterized in that: The connection assembly comprises a plurality of control panels (29) and a plurality of limit blocks (30); a plurality of sliding grooves are provided on one side of the sealing plate (10); a plurality of sliding blocks (28) are slidably installed in each of the sliding grooves; a control panel (29) is fixedly installed at one end of each of the sliding blocks (28); a limit block (30) is fixedly installed on one side of each of the control panels (29); a plurality of limit grooves are provided on the inner wall of the sealing head (3); and the limit blocks (30) are installed in the corresponding limit grooves.

3. A boiler pressure vessel with a leak-proof structure according to claim 2, characterized in that: A threaded hole is formed at one end of the plurality of sliding blocks (28), a screw rod (33) is rotatably mounted on the inner wall of the plurality of sliding grooves, the screw rod (33) is threadedly mounted in the corresponding threaded hole, a control knob (34) is fixedly mounted at one end of the plurality of screw rods (33), and the plurality of control knobs (34) are arranged on the outer side of the boiler cylinder (1).

4. A boiler pressure vessel with a leak-proof structure according to claim 2, characterized in that: A moving groove is provided on the inner wall of the sliding groove, a rack (31) is fixedly mounted on one end of the sliding block (28), the rack (31) is slidably connected in the moving groove, a connecting rod is rotatably mounted on the inner wall of one side of the moving groove, one end of the connecting rod is fixedly mounted on the second rotating gear (27), and a control gear (32) is fixedly mounted on the other end of the connecting rod, and the rack (31) is meshed with the control gear (32).

5. The boiler pressure vessel with a leak-proof structure according to claim 1, characterized in that: A circular plate (22) is fixedly sleeved on the second butt joint pipe (4), and a plurality of adjustment grooves are opened on one side of the circular plate (22). A plurality of telescopic rods (23) are fixedly installed on one side of the sealing cover (12), and the telescopic rods (23) are slidably installed in the corresponding adjustment grooves.

6. A boiler pressure vessel with a leak-proof structure according to claim 5, characterized in that: One end of a plurality of telescopic rods (23) is provided with a second thread groove, and the inner wall of a plurality of adjustment grooves is rotatably connected with a second screw rod (24), and the second screw rod (24) is threadably installed in the corresponding second thread groove.

7. A boiler pressure vessel with a leak-proof structure according to claim 6, characterized in that: The circular plate (22) is provided with a plurality of fixed grooves, and driving gears (25) are rotatably mounted in the plurality of fixed grooves. One end of the second screw rod (24) is fixedly connected to the corresponding driving gear (25). The circular plate (22) is rotatably sleeved with a second internal gear (26), and the second internal gear (26) is meshed with the driving gear (25).

8. The boiler pressure vessel with a leak-proof structure according to claim 1, characterized in that: A sealing gasket (13) is fixedly mounted on the inner wall of the sealing cover (12), and the sealing gasket (13) is in contact with one side of the assembly plate (11).

9. The boiler pressure vessel with a leak-proof structure according to claim 1, characterized in that: One end of the boiler barrel (1) and the end cap (3) are both fixedly mounted with a second sealing gasket (35), and the two second sealing gaskets (35) fit together.

10. The boiler pressure vessel with a leak-proof structure according to claim 1, characterized in that: A gas analyzer (6), a pressure sensor (5), a temperature sensor (7) and a sound wave detector (8) are fixedly mounted on the inner wall of the sealing head (3), and a plurality of reinforcing plates (9) are fixedly mounted on the sealing head (3).