Multi-dimensional adjustment type boiler roof secondary sealing device
Patent Information
- Application Number
- CN202522299478.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-30
AI Technical Summary
然而，随着锅炉长时间的运行，受高温、高压以及频繁的热胀冷缩等因素影响，密封垫片或填料极易出现老化、变形、磨损等问题
通过顶盖的机械密封方式，不依赖易老化的密封垫片或填料，避免了因这些材料问题导致的密封失效，有效防止了高温烟气泄漏；良好的密封性能阻止了高温烟气泄漏，减少了热量散失，使锅炉能够更高效地将燃料能量转化为热能，提高锅炉的热效率，降低能源消耗。
Smart Images
Figure CN224920390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of boiler sealing structures, and in particular to a multi-dimensional adjustable boiler top secondary sealing device. Background Technology
[0002] In industrial production, boilers, as important energy conversion equipment, are widely used in many industries such as power, chemical, and heating. During boiler operation, the sealing performance of the furnace top directly affects the boiler's thermal efficiency and also has a profound impact on the equipment's safety, stability, and operating costs.
[0003] Traditional boiler top sealing methods have many limitations. Common, simple sealing structures often use a single gasket or packing. While this method can meet basic sealing requirements to a certain extent during initial boiler operation, prolonged operation exposes the gaskets or packing to aging, deformation, and wear due to high temperatures, high pressures, and frequent thermal expansion and contraction. Once these problems occur, the sealing performance deteriorates sharply, leading to leakage of high-temperature flue gas inside the boiler. This leakage not only causes significant heat loss, reducing boiler thermal efficiency, increasing energy consumption, and raising operating costs, but also poses safety hazards to surrounding equipment and personnel, threatening production safety. Utility Model Content
[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a multi-dimensional adjustable boiler top secondary sealing device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model relates to a multi-dimensional adjustable boiler top secondary sealing device, comprising: The boiler top is installed on the boiler, and a sealing cover mechanism is installed on the boiler top; A partition assembly, installed on the top of the boiler, is used for initial partitioning of the boiler top; The sealing cap mechanism includes: Cylinder mounting bracket is fixedly installed on the outer side wall of the boiler top. The cover-opening cylinder is fixedly installed in the cylinder mounting seat; The transmission seat is oscillatingly mounted on the cylinder mounting seat, and the transmission seat is hinged to the output end of the cover-opening cylinder; The cover plate is fixedly connected to the top of the transmission base; The cover pressure cylinder is fixedly installed on the cover opening connecting plate; The top cover is mounted on the opening and closing plate and its lifting and lowering are controlled by a cover pressure cylinder. The top cover is used to seal the top of the boiler.
[0006] Furthermore, a high-temperature resistant sealing gasket is provided at the bottom of the top cover.
[0007] Furthermore, the sealing cap mechanism also includes: The clamping support is fixedly connected to the top of the top cover, and three hinged supports are provided on the clamping support; Three hinged arms, all three hinged arms are swaying and mounted on the cover connecting plate; Three grippers are oscillatingly mounted on three hinged supports, and each gripper is hinged to a corresponding hinged arm. The grippers are used to hook the edge of the boiler top opening so that it is close to the top cover.
[0008] Furthermore, three guide posts are evenly arranged on the clamping support, and all three guide posts are slidably inserted into the cover connecting plate.
[0009] Furthermore, a limit plate is provided at the top of the guide post.
[0010] Furthermore, the limiting plate threaded assembly is installed on the guide post.
[0011] Furthermore, the partition assembly includes: The drive shaft is rotatably mounted on the top of the boiler. The drive shaft is driven to rotate by a drive motor, which is fixedly mounted on the top of the boiler. The drive rocker arm is fixedly connected to the drive shaft, and two linkage rods are hinged on the drive rocker arm. Multiple driven shafts are arranged circumferentially and inserted through the top of the boiler. The driven shafts are rotatably mounted on the top of the boiler. Each driven shaft is equipped with a driven rocker arm, which is fixedly connected to the driven shaft. Two linkage rods are hinged on the driven rocker arm. The other end of the two linkage rods on the driven rocker arm is hinged to the adjacent driven rocker arm. The other end of the linkage rod on the driven rocker arm is hinged to the next driven rocker arm, and so on, arranged in a circle. Multiple baffles are fixedly installed on each driven shaft. The baffles swing as the driven shaft rotates. The baffles are laid flat to form a partition disc. When the baffles are rotated to a vertical position, the top of the boiler is opened.
[0012] Furthermore, a reinforcing triangular bracket is installed on the inner side wall of the boiler top, and a central column is installed on the reinforcing triangular bracket. The center end of each partition is hinged to the central column.
[0013] The multi-dimensional adjustable boiler top secondary sealing device provided by this utility model has the following beneficial effects: The mechanical seal of the top cover does not rely on easily aging gaskets or fillers, thus avoiding seal failure caused by these material problems and effectively preventing high-temperature flue gas leakage. The good sealing performance prevents high-temperature flue gas leakage, reduces heat loss, and enables the boiler to convert fuel energy into heat energy more efficiently, thereby improving the boiler's thermal efficiency and reducing energy consumption. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged structural schematic diagram of the sealing cap mechanism; Figure 3 This is a cross-sectional structural diagram of the sealing cover mechanism; Figure 4 This is a schematic diagram of the transmission structure of the partition component; Figure 5 This is a schematic diagram of the lower structure of the partition component; The following are labels in the attached diagram: 1. Boiler top; 11. Cylinder fixing seat; 12. Opening cylinder; 13. Transmission seat; 14. Opening connecting plate; 15. Cover pressing cylinder; 16. Top cover; 17. Clamping support; 18. Hinge arm; 19. Gripper; 1a. Guide column; 1b. Limiting plate; 2. Isolation assembly; 21. Drive shaft; 22. Drive motor; 23. Drive rocker arm; 24. Linkage rod; 25. Driven rocker arm; 26. Driven shaft; 27. Partition plate; 28. Reinforcing triangular bracket; 29. Center column. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0017] See Figure 1-5 As shown; The multi-dimensional adjustable boiler top secondary sealing device of this utility model includes: Boiler top 1 is installed on the boiler, and a sealing cover mechanism is installed on boiler top 1. Partition assembly 2 is installed on the boiler top 1 and is used for preliminary partitioning of the boiler top 1; The sealing cap mechanism includes: Cylinder mounting base 11 is fixedly installed on the outer side wall of boiler top 1; The cover-opening cylinder 12 is fixedly installed in the cylinder mounting seat 11; The transmission seat 13 is oscillatingly mounted on the cylinder fixing seat 11, and the transmission seat 13 is hinged to the output end of the cover opening cylinder 12. The cover connecting plate 14 is fixedly connected to the top of the transmission seat 13; The cover-pressing cylinder 15 is fixedly installed on the cover-opening connecting plate 14; The top cover 16 is lifted and lowered on the opening plate 14 and controlled by the cover pressure cylinder 15. The top cover 16 is used to seal the top of the covered boiler 1. By adopting the above technical solution, during boiler operation, the isolation component 2 installed on the boiler top 1 first functions to provide initial isolation to the boiler top, which can reduce the direct upward diffusion of high-temperature flue gas inside the boiler to a certain extent, creating conditions for subsequent more precise sealing operations and reducing the impact of high-temperature flue gas on the sealing area. When sealing is required, by controlling the opening cylinder 12 to retract its cylinder rod, the transmission seat 13 drives the opening connecting plate 14 to swing downward until the top cover 16 is horizontal. Then, the cover pressure cylinder 15 is activated, which controls the top cover 16 to move up and down on the opening connecting plate 14, causing the top cover 16 to descend and tightly seal the cover on the top of the boiler top 1, thus achieving effective sealing of the boiler top. By controlling the extension and retraction of the cover-opening cylinder 12 and the cover-pressing cylinder 15, the position and sealing force of the top cover 16 can be flexibly adjusted to achieve the best sealing effect. Traditional sealing methods rely on gaskets or packings, which are prone to aging, deformation, and wear due to high temperature, high pressure, and thermal expansion and contraction, leading to a sharp decline in sealing performance and leakage of high-temperature flue gas. However, this device uses a mechanical seal of the top cover 16, which does not rely on easily aging gaskets or packings, avoiding sealing failure caused by these material problems and effectively preventing leakage of high-temperature flue gas. The good sealing performance prevents leakage of high-temperature flue gas, reduces heat loss, and enables the boiler to convert fuel energy into heat energy more efficiently, thereby improving the boiler's thermal efficiency and reducing energy consumption.
[0018] As a preferred embodiment of the above technical solution, a high-temperature resistant sealing gasket is provided at the bottom of the top cover 16; In this embodiment, the high-temperature resistant sealing gasket provided at the bottom of the top cover 16 can maintain stable physical and chemical properties under the high-temperature environment of boiler operation, and is not prone to aging, deformation and wear, thereby effectively filling the gap between the top cover 16 and the top of the boiler top 1, enhancing the sealing performance and reducing the possibility of high-temperature flue gas leakage.
[0019] As a preferred embodiment of the above technical solution, such as Figures 2 to 3 As shown, the sealing cap mechanism also includes: The clamping support 17 is fixedly connected to the top of the top cover 16, and three hinged supports are provided on the clamping support 17. Three hinged arms 18 are swayingly mounted on the cover connecting plate 14; Three grippers 19 are respectively oscillatingly mounted on three hinged supports, and each gripper 19 is hinged to a corresponding hinged arm 18. The grippers 19 are used to hook the edge of the opening of the boiler top 1 so that it is close to the top cover 16. In this embodiment, when the top cover 16 approaches the top of the boiler top 1, the cover pressure cylinder 15 starts to work, precisely controlling the descent speed and force of the top cover 16, so that the high-temperature resistant sealing gasket at the bottom of the top cover 16 gradually contacts the top of the boiler top 1. At the same time, driven by the hinge arm 18, the three grippers 19 gradually approach the edge of the opening of the boiler top 1 as the top cover 16 descends. When the top cover 16 descends to the appropriate position, the grippers 19 hook onto the edge of the opening of the boiler top 1. Under the combined action of the pulling force of the grippers 19 and the pressure of the cover pressure cylinder 15, the top cover 16 is tightly fitted to the top of the boiler top 1, improving the sealing effect. By hooking onto the edge of the opening of the boiler top 1 with the three grippers 19, and working together with the high-temperature resistant sealing gasket at the bottom of the top cover 16 and the pressure of the cover pressure cylinder 15, a multi-layer sealing structure is formed. This can effectively resist the pressure of the high-temperature flue gas inside the boiler, reduce the possibility of flue gas leakage, and enhance the sealing performance.
[0020] As a preferred embodiment of the above technical solution, such as Figure 2 As shown, three guide posts 1a are evenly arranged on the clamping support 17, and the three guide posts 1a are slidably inserted into the cover connecting plate 14. In this embodiment, the sliding insertion structure of the guide post 1a and the cover opening connecting plate 14 provides precise guidance for the lifting and lowering movement of the top cover 16; when closing the cover, it can ensure that the top cover 16 accurately descends to the position corresponding to the top of the boiler top 1, so that the high temperature resistant sealing gasket at the bottom of the top cover 16 is in uniform and tight contact with the top of the boiler top 1, thereby improving the sealing accuracy and enhancing the sealing stability.
[0021] As a preferred embodiment of the above technical solution, such as Figure 2 As shown, a limiting piece 1b is provided at the top of the guide post 1a; In this embodiment, the limiting piece 1b can limit the upward sliding stroke of the guide post 1a within the cover opening plate 14; during the opening process, it can prevent the top cover 16 from rising excessively and colliding violently with the boiler top 1 or other upper components, thus avoiding damage to the top cover 16, boiler top 1, and other components, and ensuring the safe operation of the equipment.
[0022] As a preferred embodiment of the above technical solution, the limiting piece 1b is threadedly mounted on the guide post 1a; In this embodiment, the limiting piece 1b is threaded onto the guide post 1a, allowing the operator to flexibly adjust the position of the limiting piece 1b according to factors such as the actual operating conditions of the boiler, the size of the boiler top 1, and sealing requirements, thereby improving the versatility of the equipment.
[0023] As a preferred embodiment of the above technical solution, such as Figures 4 to 5 As shown, partition component 2 includes: The drive shaft 21 is rotatably mounted on the top of the boiler 1. The drive shaft 21 is driven to rotate by the drive motor 22, which is fixedly mounted on the top of the boiler 1. The drive lever 23 is fixedly connected to the drive shaft 21, and two linkage rods 24 are hinged on the drive lever 23. Multiple driven shafts 26 are arranged circumferentially and inserted through the top of the boiler 1. Each driven shaft 26 is rotatably mounted on the top of the boiler 1. Each driven shaft 26 is provided with a driven rocker arm 25, which is fixedly connected to the driven shaft 26. Two linkage rods 24 are hinged on the driven rocker arm 25. The other end of the two linkage rods 24 on the driving rocker arm 23 is hinged to the adjacent driven rocker arm 25. The other end of the linkage rod 24 on the driven rocker arm 25 is hinged to the next driven rocker arm 25, and so on, arranged in a circle. Multiple baffles 27 are fixedly installed on each driven shaft 26. The baffles 27 swing as the driven shaft 26 rotates. The baffles 27 are laid flat to form a partition disc. When the baffles 27 are rotated to a vertical position, the boiler top 1 is opened. In this embodiment, when the boiler is operating normally and no special operation is required on the boiler top 1, the partition assembly 2 is in working condition. Each partition plate 27 is laid flat to form a partition disc, relatively isolating the internal space of the boiler top 1 from the outside. At this time, the drive motor 22 is in a stopped state, and the partition disc provides initial isolation, reducing heat loss from the boiler interior, maintaining stable temperature and pressure inside the boiler, and preventing external debris from entering the boiler. When maintenance, material addition, or other operations requiring opening the boiler top 1 are needed, the drive motor 22 is started; the drive motor 22 begins to rotate, driving... The drive shaft 21 rotates; since the drive rocker arm 23 is fixedly connected to the drive shaft 21, the drive rocker arm 23 will rotate together with the drive shaft 21; two linkage rods 24 are hinged on the drive rocker arm 23, and the other ends of these two linkage rods 24 are respectively hinged to the adjacent driven rocker arm 25; when the drive rocker arm 23 rotates, it will pull the adjacent driven rocker arm 25 to rotate through the linkage rods 24; each driven rocker arm 25 is fixedly connected to a driven shaft 26, and the rotation of the driven rocker arm 25 will drive the driven shaft 26 to rotate; and other linkage rods 24 are hinged to this group of driven rocker arms 25, and the other ends of these linkage rods 24 are connected to the next The driven swing rods 25 are hinged, and so on, forming a circumferentially arranged linkage structure; the rotation of the driving swing rod 23 will drive each driven swing rod 25 and driven shaft 26 to rotate in sequence through the linkage rod 24; each driven shaft 26 is fixedly installed with a partition 27, and the partition 27 will swing with the rotation of the driven shaft 26; when each partition 27 rotates to the vertical position, the originally flat partition disc is opened, the boiler top 1 is opened, and the operator can perform corresponding operations inside the boiler; when the operation inside the boiler is completed and the boiler top 1 needs to be closed again, the drive motor 22 is controlled to rotate in the opposite direction; the drive Motor 22 drives drive shaft 21 to rotate in the opposite direction, which in turn causes drive rocker arm 23 to rotate in the opposite direction. Drive rocker arm 23 drives each driven rocker arm 25 and driven shaft 26 to rotate in the opposite direction in sequence through linkage rod 24, so that each partition 27 gradually swings back from the vertical state to the flat state, and re-forms a partition disk, isolating the interior of boiler top 1 from the outside. During normal boiler operation, the partition disk formed by the flat partition 27 can effectively prevent a large amount of high-temperature flue gas and heat inside the boiler from being lost to the outside environment. It can maintain the temperature and pressure inside the boiler, improve the thermal efficiency of the boiler, reduce energy consumption, and thus reduce operating costs.
[0024] As a preferred embodiment of the above technical solution, such as Figure 5 As shown, a reinforcing triangular bracket 28 is installed on the inner side wall of the boiler top 1, and a central column 29 is installed on the reinforcing triangular bracket 28. The center ends of each partition 27 are hinged to the central column 29. In this embodiment, the reinforcing triangular bracket 28 is set on the inner wall of the boiler top 1, providing a solid foundation support for the entire partition assembly 2. This enhances the overall structural strength of the boiler top 1 after the partition assembly 2 is installed, reducing the possibility of deformation of the boiler top 1 due to long-term operation or external forces. The central column 29 is installed on the reinforcing triangular bracket 28, serving as the fulcrum for the rotation of the partition 27. During the frequent swinging of the partition 27, the central column 29 can always remain stable, ensuring smooth and accurate rotation of the partition 27. This avoids abnormal movement of the partition 27 due to unstable fulcrum, further improving the structural reliability of the partition assembly 2.
[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A multi-dimensional adjustable boiler top secondary sealing device, characterized in that, include: A boiler top is provided on the boiler, and a sealing cover mechanism is provided on the boiler top; A partition assembly is installed on the top of the boiler for initially partitioning the top of the boiler; The sealing cap mechanism includes: A cylinder mounting base is fixedly installed on the outer side wall of the top of the boiler. The cover-opening cylinder is fixedly installed in the cylinder mounting seat; The transmission seat is oscillatingly mounted on the cylinder mounting seat, and the transmission seat is hinged to the output end of the cover-opening cylinder; The cover connecting plate is fixedly connected to the top of the transmission seat; A cover-pressing cylinder is fixedly installed on the cover-opening connecting plate; The top cover is lifted and lowered on the opening and connecting plate, and its lifting and lowering are controlled by the cover pressure cylinder. The top cover is used to seal the top of the boiler.
2. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 1, characterized in that, The bottom of the top cover is provided with a high-temperature resistant sealing gasket.
3. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 1, characterized in that, The sealing cap mechanism further includes: A clamping support is fixedly connected to the top of the top cover, and the clamping support is provided with three hinged supports; Three hinged arms, all three of which are swayably mounted on the cover connecting plate; Three grippers are oscillatingly mounted on three hinged supports, and each gripper is hinged to a corresponding hinged arm. The grippers are used to hook the edge of the opening of the boiler top so that it is close to the top cover.
4. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 3, characterized in that, Three guide posts are evenly arranged on the clamping support, and all three guide posts are slidably inserted into the cover connecting plate.
5. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 4, characterized in that, A limiting plate is provided at the top of the guide post.
6. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 5, characterized in that, The limiting plate is threadedly fitted onto the guide post.
7. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 1, characterized in that, The partition assembly includes: A drive shaft is rotatably mounted on the top of the boiler. The drive shaft is driven to rotate by a drive motor, which is fixedly mounted on the top of the boiler. A drive lever is fixedly connected to the drive shaft, and two linkage rods are hinged on the drive lever; Multiple driven shafts are arranged circumferentially and inserted through the top of the boiler. Each driven shaft is rotatably mounted on the top of the boiler. Each driven shaft is provided with a driven rocker arm, which is fixedly connected to the driven shaft. Two linkage rods are hinged to the driven rocker arm. The other end of the two linkage rods on the driven rocker arm is hinged to the adjacent driven rocker arm. The other end of the linkage rod on the driven rocker arm is hinged to the next driven rocker arm, and so on, arranged in a circle. Multiple partitions are provided, with one partition fixedly installed on each driven shaft. The partitions swing as the driven shaft rotates, and the partitions are laid flat to form a partition disk. When the partitions are rotated to a vertical position, the top of the boiler is opened.
8. The multi-dimensional adjustable boiler top secondary sealing device as described in claim 7, characterized in that, A reinforcing triangular bracket is provided on the inner side wall of the boiler top, and a central column is provided on the reinforcing triangular bracket. The center end of each of the partitions is hinged to the central column.