Incinerator airtight device
By employing an outer sealing ring, sealing sleeve, and inner sealing ring combined with a spring structure in the incinerator's airtight device, the gas leakage problem was solved, achieving high-efficiency airtightness and convenient disassembly and assembly, thus improving the incinerator's sealing performance and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HUILAI ECOLOGICAL ENVIRONMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-17
AI Technical Summary
Existing incinerator airtight devices are difficult to effectively prevent gas leakage from external gaps and internal parts of the connection points under complex operating conditions such as high temperature and corrosion. Traditional sealing materials are prone to aging and wear, resulting in a decrease in sealing performance.
The sealing components include an outer sealing ring, a sealing sleeve, and an inner sealing ring, combined with a spring structure. The outer sealing ring prevents leakage from external gaps, while the sealing sleeve and inner sealing ring fit tightly to prevent internal leakage. The slot and block structure allows for easy assembly and disassembly, enhancing the stability of the connection.
It effectively prevents gas leakage from the connection points, improves the sealing and flexibility of the incinerator, adapts to the maintenance and repair needs of different operating conditions, and ensures the safe and efficient operation of the incinerator.
Smart Images

Figure CN224135169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of incinerator technology, and in particular to an airtight device for an incinerator. Background Technology
[0002] Incinerators are widely used in modern environmental protection and industrial production to treat various wastes and exhaust gases. Ensuring the airtightness of the incinerator during the incineration process is crucial. Good airtightness prevents the leakage of harmful gases, avoiding harm to the environment and operators, while maintaining stable combustion conditions within the furnace, improving combustion efficiency and treatment effectiveness. With increasingly stringent environmental requirements and higher expectations for incinerator performance, the development of more efficient and reliable airtight devices has become a key focus in the industry, and is of great significance for ensuring the safe, environmentally friendly, and efficient operation of incineration processes.
[0003] Existing airtight devices for incinerators come in various structural forms. Some use simple rubber sealing rings, placing the rings at the joints between incinerator components and sealing them by tightening bolts. Others apply sealant to the joints, using the adhesive properties to fill gaps and achieve a seal.
[0004] However, existing airtight devices for incinerators are ineffective in preventing gas leakage from external gaps and internal parts of the connection. Traditional simple rubber sealing rings are prone to aging and wear, and their sealing performance deteriorates significantly under complex operating conditions such as high temperature and corrosion, leading to the leakage of harmful gases from external gaps. Applying sealant is also prone to cracking and peeling over time and due to vibrations in the incinerator, failing to continuously prevent gas leakage from the inside, resulting in poor sealing of the connection and increased risk of gas leakage. Therefore, an airtight device for incinerators is proposed to solve the above problems. Summary of the Invention
[0005] To overcome the above deficiencies, this utility model provides an airtight device for an incinerator, which aims to improve the problem that it is difficult to effectively prevent gas from leaking from the external gaps and internal parts of the connection in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An airtight device for an incinerator includes a fixed frame, an incinerator tank fixedly connected to the top of the fixed frame, an exhaust tank fixedly connected to the top of the fixed frame, a filter tank disposed between the incinerator tank and the exhaust tank, a sealing pipe 1 disposed on the outer wall of both the exhaust tank and the incinerator tank, a gas supply pipe fixedly connected to the top of the filter tank, the incinerator tank being connected to the filter tank through one of the sealing pipe 1, the exhaust tank being connected to the gas supply pipe through the other sealing pipe 1, a sealing pipe 2 fixedly connected to the outer wall of the exhaust tank, a connecting pipe slidably connected inside the sealing pipe 2, a sealing pipe 1 slidably connected to the outer wall of the connecting pipe, and a sealing component disposed inside the sealing pipe 1.
[0008] The sealing assembly includes an outer sealing ring, which is sleeved on the outer wall of a sealing tube. A sealing sleeve is provided inside the sealing tube, and an inner sealing ring is provided inside the sealing tube. A protective sleeve is fixedly connected inside the sealing tube, and a connecting assembly is provided at one end of the connecting tube.
[0009] As a further description of the above technical solution:
[0010] The connecting assembly includes a spring, one end of which is fixedly connected to one end of the connecting tube, and the other end of which is in contact with the inner wall of the sealing tube. The spring is disposed between the sealing tube and the protective sleeve.
[0011] As a further description of the above technical solution:
[0012] A hollow column is fixedly connected to the outer wall of the connecting pipe, and a connecting column is fixedly connected to one end of the sealing pipe.
[0013] As a further description of the above technical solution:
[0014] The hollow column has a slot inside, and a fixing column is fixedly connected inside the connecting column.
[0015] As a further description of the above technical solution:
[0016] The fixed column is internally connected to a sliding column, and a connecting plate is fixedly connected to the top of the sliding column.
[0017] As a further description of the above technical solution:
[0018] A locking block is fixedly connected to the top of the connecting plate, and the locking block is slidably connected inside the locking slot.
[0019] As a further description of the above technical solution:
[0020] A second spring is fitted on the outer wall of the sliding column. The bottom end of the second spring is fixedly connected to the inside of the connecting column, and the top end of the second spring is fixedly connected to the bottom of the connecting plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the outer sealing ring prevents gas from leaking from the external gaps between the sealing tube and other components. The sealing sleeve and inner sealing ring inside the sealing tube tightly fit the connection part, preventing gas leakage from the inside. When the connecting tube is connected to the sealing tube, the spring is compressed, causing the two to fit tightly together, thus effectively preventing gas leakage. This solves the problem of difficulty in effectively preventing gas from leaking from the external gaps and the inside of the connection part, thereby improving the sealing performance of the incinerator.
[0023] 2. In this utility model, by placing a sealing tube on the outer wall of the connecting tube, the connecting column is inserted into the hollow column. The groove inside the hollow column cooperates with the sliding column, connecting plate, and locking block on the fixed column inside the connecting column. The sliding column slides within the fixed column, and two springs are sleeved on the outer wall of the sliding column, providing elasticity to firmly lock the locking block in the groove. This achieves the effect of convenient assembly and disassembly of the sealing tube and the connecting tube. It solves the problem of inconvenient assembly and disassembly of the connecting components of traditional airtight devices, and the inability to flexibly adjust them according to equipment inspection, maintenance, or different working conditions, thereby improving the flexibility of the airtight device. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of an airtight device for an incinerator proposed in this utility model;
[0025] Figure 2 This is an exploded schematic diagram of the sealing tube of an airtight device for an incinerator proposed in this utility model;
[0026] Figure 3 This is a cross-sectional schematic diagram of the sealing tube of an airtight device for an incinerator proposed in this utility model.
[0027] Figure 4 This is a schematic cross-sectional view of the connecting column of an airtight device for an incinerator proposed in this utility model.
[0028] Legend:
[0029] 1. Fixing frame; 2. Incinerator; 3. Exhaust tank; 4. Gas supply pipe; 5. Sealing pipe one; 6. Sealing pipe two; 7. Connecting pipe; 8. Outer sealing ring; 9. Sealing sleeve; 10. Inner sealing ring; 11. Spring one; 12. Protective sleeve; 13. Hollow column; 14. Connecting column; 15. Slot; 16. Fixing column; 17. Sliding column; 18. Spring two; 19. Connecting plate; 20. Locking block; 21. Filter tank. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-3 An embodiment of this utility model provides: an airtight device for an incinerator, including a fixed frame 1, with an incinerator 2 fixedly connected to the top of the fixed frame 1. The incinerator 2 is the core part of the entire device and is responsible for high-temperature incineration of materials. An exhaust tank 3 is fixedly connected to the top of the fixed frame 1. A filter tank 21 is provided between the incinerator 2 and the exhaust tank 3. Both the exhaust tank 3 and the incinerator 2 have a sealing pipe 5 on their outer walls, through which airflow is transported between them and the filter tank 21. A gas supply pipe 4 is fixedly connected to the top of the filter tank 21. The incinerator 2 is connected to the filter tank 21 through one of the sealing pipes 5. The exhaust tank 3 is connected to the gas supply pipe 4 through the other sealing pipe 5. A second sealing pipe 6 is fixedly connected to the outer wall of the exhaust tank 3. A connecting pipe 7 is slidably connected inside the second sealing pipe 6. The first sealing pipe 5 is slidably connected to the outer wall of the connecting pipe 7. A sealing component is provided inside the first sealing pipe 5.
[0032] The sealing assembly includes an outer sealing ring 8, which is sleeved on the outer wall of the sealing tube 5, effectively forming external protection and ensuring sealing performance. A sealing sleeve 9 and an inner sealing ring 10 are provided inside the sealing tube 5. The inner sealing ring 10 is located at the internal connection point of the sealing tube 5 and fits tightly with the sealing sleeve 9, further enhancing the leak-proof function. A protective sleeve 12 is fixedly connected inside the sealing tube 5. A connecting assembly is provided at one end of the connecting tube 7, including a spring 11. One end of the spring 11 is fixedly connected to one end of the connecting tube 7, and the other end of the spring 11 contacts the inner wall of the sealing tube 5. The spring 11 is positioned between the sealing tube 5 and the protective sleeve 12. When the connecting tube 7 is connected to the sealing tube 5, the spring 11 is compressed and generates a reaction force, thereby enhancing the sealing performance of the connection point.
[0033] Reference Figures 2-4A hollow column 13 is fixedly connected to the outer wall of the connecting pipe 7, and a connecting column 14 is fixedly connected to one end of the sealing pipe 5. A slot 15 is opened inside the hollow column 13, which is designed with the locking block 20 to lock the movement range of the connecting component. A fixed column 16 is fixedly connected inside the connecting column 14, and a sliding column 17 is slidably connected inside the fixed column 16. A connecting plate 19 is fixedly connected to the top of the sliding column 17, and a locking block 20 is fixedly connected to the top of the connecting plate 19. The locking block 20 is slidably connected inside the slot 15. A second spring 18 is sleeved on the outer wall of the sliding column 17. The bottom end of the second spring 18 is fixedly connected inside the connecting column 14, and the top end of the second spring 18 is fixedly connected to the bottom of the connecting plate 19. The locking block 20, through the elastic force of the second spring 18, enables the connecting component to remain relatively fixed when subjected to external pressure.
[0034] Working principle: When using the airtight device of this incinerator, the incinerator 2 is used for incineration. The generated gas is transmitted to the filter tank 21 for purification through the sealed pipe 5 connected to it. The filtered gas is then transmitted through the gas supply pipe 4 and enters the exhaust tank 3 through the sealed pipe 5 connected to the exhaust tank 3. Finally, it is discharged through the pipe on the exhaust tank 3. In this process, the outer sealing ring 8 is sleeved on the outer wall of the sealing pipe 5 to prevent gas from leaking from the external gaps between the sealing pipe 5 and other components. The sealing sleeve 9 and the inner sealing ring 10 inside the sealing pipe 5 further block gas leakage from the inside. They fit tightly at the connection point to form multiple sealing defenses. The spring 11 is set between the sealing pipe 5 and the protective sleeve 12. One end is connected to the connecting pipe 7, and the other end is in contact with the inner wall of the sealing pipe 5. When the connecting pipe 7 is connected to the sealing pipe 5, the spring 11 is compressed to generate elastic force, so that the two fit tightly together, enhancing the sealing performance of the connection. At the same time, it can also buffer the impact of vibration and other factors on the connection point and prevent gas leakage caused by loose connection.
[0035] When assembling and disassembling the sealing tube 5 and the connecting tube 7, the sealing tube 5 is first fitted onto the outer wall of the connecting tube 7, so that the connecting post 14 at one end of the sealing tube 5 is inserted into the hollow post 13 on the outer wall of the connecting tube 7. The groove 15 inside the hollow post 13 cooperates with the sliding post 17, the connecting plate 19, and the locking block 20 on the fixed post 16 inside the connecting post 14. The sliding post 17 can slide inside the fixed post 16. The spring 18 is fitted onto the outer wall of the sliding post 17, with its bottom end fixed inside the connecting post 14 and its top end fixed to the bottom of the connecting plate 19. When connecting, the locking block 20 slides into the groove 15, and the spring 18 provides a certain elastic force to make the locking block 20 firmly locked in the groove 15, further ensuring the firmness of the connection between the sealing tube 5 and the connecting tube 7. At the same time, the spring 18 can also buffer vibration to a certain extent and maintain the airtightness of the device.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An airtight device for incinerator, comprising a fixed frame (1), characterized in that: The top of the fixed frame (1) is fixedly connected to the incinerator (2), the top of the fixed frame (1) is fixedly connected to the exhaust tank (3), the filter tank (21) is provided between the incinerator (2) and the exhaust tank (3), the outer walls of the exhaust tank (3) and the incinerator (2) are both provided with a sealing pipe (5), the top of the filter tank (21) is fixedly connected to the gas supply pipe (4), the incinerator (2) is connected to the filter tank (21) through one of the sealing pipes (5), the exhaust tank (3) is connected to the gas supply pipe (4) through another sealing pipe (5), the outer wall of the exhaust tank (3) is fixedly connected to a sealing pipe (6), the inner side of the sealing pipe (6) is slidably connected to a connecting pipe (7), the sealing pipe (5) is slidably connected to the outer wall of the connecting pipe (7), and the inner side of the sealing pipe (5) is provided with a sealing component; The sealing assembly includes an outer sealing ring (8), which is sleeved on the outer wall of the sealing tube (5). A sealing sleeve (9) is provided inside the sealing tube (5), and an inner sealing ring (10) is provided inside the sealing tube (5). A protective sleeve (12) is fixedly connected inside the sealing tube (5), and a connecting assembly is provided at one end of the connecting tube (7).
2. A gas seal for an incinerator as claimed in claim 1, wherein: The connecting assembly includes a spring (11), one end of which is fixedly connected to one end of the connecting tube (7), and the other end of which is in contact with the inner wall of the sealing tube (5). The spring (11) is disposed between the sealing tube (5) and the protective sleeve (12).
3. A gas seal for an incinerator as claimed in claim 2, wherein: A hollow column (13) is fixedly connected to the outer wall of the connecting pipe (7), and a connecting column (14) is fixedly connected to one end of the sealing pipe (5).
4. A furnace gas seal according to claim 3, wherein: The hollow column (13) has a slot (15) inside, and the connecting column (14) has a fixed column (16) inside.
5. A furnace gas seal according to claim 4, wherein: The fixed column (16) is internally connected to a sliding column (17), and a connecting plate (19) is fixedly connected to the top of the sliding column (17).
6. A furnace gas seal according to claim 5, wherein: The top of the connecting plate (19) is fixedly connected to a card block (20), and the card block (20) is slidably connected inside the card slot (15).
7. A furnace gas seal according to claim 6, wherein: The outer wall of the sliding column (17) is fitted with a second spring (18), the bottom end of the second spring (18) is fixedly connected to the inside of the connecting column (14), and the top end of the second spring (18) is fixedly connected to the bottom of the connecting plate (19).