Novel split combined embedded sealing structure
The split-combination mosaic sealing structure solves the problem of air leakage and ash leakage in the soot blowing system of coal-fired boilers, makes it easy to disassemble and assemble and quantitatively fill, improves the sealing effect and environmental protection, and adapts to the environment of pipe shaking.
Patent Information
- Application Number
- CN202422835717.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In the existing coal-fired boiler sootblowing system, the sootblower is an integral structure, which causes air leakage and soot leakage, resulting in environmental pollution and energy waste.
A split combined mosaic sealing structure is adopted, including a stuffing chamber, a labyrinth outer ring and a liner. The stuffing chamber and the labyrinth outer ring are connected by a sealing ring and bolts to achieve a movable connection to adapt to the pipe shaking environment.
It improves the sealing effect, reduces air leakage and powder leakage, improves the economy and environmental protection of the production process, and adapts to the environment of pipe shaking.
Smart Images
Figure CN223331141U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing structures, in particular to a novel split-combination inlaid sealing structure. Background Art
[0002] In the existing coal-fired boiler sootblowing system in the industry, soot accumulation on the rear heating area has become a common and inevitable phenomenon. The sootblower in the sootblowing system is an integral structure, assembled into one with the equipment body, and the sootblower barrel has vibration space, which makes it easy to leak air and soot during equipment operation, causing environmental pollution and energy waste. Therefore, a new split-combination mosaic sealing structure is provided to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new type of split combined inlaid sealing structure.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A novel split combined mosaic sealing structure includes a stuffing chamber, a labyrinth outer ring and a lining plate. A stuffing is provided at one end of the stuffing chamber, a copper ring stuffing is provided at the other end of the stuffing chamber, an end gland is provided on the surface of the stuffing chamber close to the stuffing, and stuffing chamber side ears are provided at both ends of the surface of the stuffing chamber. The labyrinth outer ring is sleeved on the surface of the stuffing chamber, two labyrinth outer ring side ears are provided on the outside of the labyrinth outer ring, a second sealing gasket is provided on the outer surface of the labyrinth outer ring, and the second sealing gasket is provided between the labyrinth outer ring and the stuffing chamber. The lining plate is provided. It is placed on one side of the labyrinth outer ring surface, and a first sealing gasket is installed on the lining surface close to the labyrinth outer ring. Two lining side ears are fixedly connected to the outer surface of the lining, and lining bolt holes are provided inside the two lining side ears. Through the setting of the sealing ring, the sealing ring is inside the sealing ring groove. First, it seals to prevent powder and ash leakage, and second, it isolates the stuffing chamber from the labyrinth outer ring, so that the labyrinth outer ring and the stuffing chamber can move up, down, left and right. The sealing ring is >1000℃, and the labyrinth outer ring and the stuffing chamber can move up, down, left and right, which is suitable for the environment where the pipe shakes.
[0006] Preferably, the stuffing chamber is a two-lobed type, and the two-lobed stuffing chambers are connected by bolts and limit pins. The surface of the stuffing chamber is provided with a plurality of bolt holes for connecting the stuffing chamber and the pressure cover, and the surface of the end pressure cover is provided with a plurality of bolt holes for connecting the pressure cover and the stuffing chamber. The bolt holes for connecting the pressure cover and the stuffing chamber correspond to the bolt holes for connecting the pressure cover and the packing chamber, and the bolt holes for connecting the pressure cover and the stuffing chamber and the pressure cover are connected by bolts. The end pressure cover is fixedly connected with a boss near one side of the stuffing chamber, and the boss is provided inside the stuffing chamber. An end pressure cover through-axis hole is provided at the center of the end pressure cover, and the packing is built into the stuffing chamber, close to the copper ring packing, to avoid the packing from being misplaced and overturned in the stuffing chamber.
[0007] Furthermore, a circular groove is provided on the inner wall of the outer ring of the labyrinth, and three circular rings are fixedly connected to the outer wall of the packing chamber. The middle circular ring slides inside the circular groove, and the outer ring of the labyrinth is arranged between two circular rings far away from each other. Two sealing ring grooves are provided on the outer surface of the middle circular ring, and sealing rings are provided inside the two sealing ring grooves. Sealing rings are provided inside the two sealing ring grooves, and through holes are provided on the surfaces of the circular rings far away from each other. The packing chamber and the outer ring of the labyrinth are made of carbon steel to ensure the stability of the equipment. The outer ring of the labyrinth and the packing chamber are inlaid, and the left and right gaps are 2mm and the upper and lower gaps are 10mm, which ensures the mobility of the outer ring of the labyrinth and the packing chamber and can adapt to the environment of pipe shaking.
[0008] Preferably, a plurality of first sealing gasket bolt holes are provided on one side of the labyrinth outer ring surface, a plurality of labyrinth outer ring and liner connection bolt holes are provided on the other side of the labyrinth outer ring surface, a plurality of liner bolt holes are provided on the liner surface, a plurality of the labyrinth outer ring and liner connection bolt holes cooperate with a plurality of liner bolt holes, a plurality of the labyrinth outer ring and liner connection bolt holes and a plurality of the liner bolt holes are connected by bolts, a second stuffing chamber bolt hole is provided inside the stuffing chamber near the liner side, two labyrinth outer ring side ears are fixedly connected to the labyrinth outer ring surface, a first stuffing chamber bolt hole is provided on the stuffing chamber surface, and a second sealing gasket bolt hole is provided on the labyrinth outer ring surface.
[0009] The beneficial effects of the utility model are:
[0010] By adopting a split combined structure, the stuffing chamber, the labyrinth outer ring and the end pressure cover can be freely disassembled and independently taken out, which is easier to disassemble and assemble than the existing sealing form. The packing is installed in the stuffing chamber with quantitative and visual information. The amount of installed packing and whether the installed packing fills the entire internal cavity of the stuffing chamber can be clearly observed, avoiding the randomness and invisibility of replacing packing in the existing sealing structure, greatly improving the sealing effect, reducing the occurrence of air leakage and powder leakage, and greatly improving the economy and environmental protection of the production process. At the same time, the stuffing chamber and the labyrinth outer ring are movable, which can be used in a pipe shaking environment and ensure that there is no air leakage and powder leakage, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a cross-sectional view of the surface structure of a new type of split combined mosaic sealing structure proposed by the utility model;
[0012] Figure 2 This is a schematic diagram of the liner surface structure of a new split combined mosaic sealing structure proposed by the utility model;
[0013] Figure 3 This is a schematic diagram of the surface structure of the end gland of a novel split combined mosaic sealing structure proposed by the present invention;
[0014] Figure 4 This is a schematic diagram of the surface structure of the labyrinth outer ring of a new type of split combined mosaic sealing structure proposed by the utility model;
[0015] Figure 5 This is a schematic diagram of the surface structure of a packing chamber of a new split-combination inlaid sealing structure proposed by the present invention.
[0016] In the figure: 1. End gland; 2. Boss; 3. Stuffing chamber; 4. Bolt hole for connecting gland and stuffing chamber; 5. Bolt hole for connecting stuffing chamber and gland; 6. Bolt hole for first stuffing chamber; 7. Labyrinth outer ring; 8. Bolt hole for first sealing gasket; 9. Side ear for labyrinth outer ring; 10. Bolt hole for connecting labyrinth outer ring and liner; 11. Sealing ring groove; 12. Sealing ring; 13. Bolt hole for second sealing gasket; 14. Through hole; 15. Bolt hole for second stuffing chamber; 16. Copper ring packing; 17. Packing; 18. First sealing gasket; 19. Side ear for liner; 20. Bolt hole for liner; 21. Lining; 22. Bolt hole for third sealing gasket; 23. Second sealing gasket. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0018] Reference Figure 1-Figure 5 A new type of split combined mosaic sealing structure includes a stuffing chamber 3, a labyrinth outer ring 7 and a lining plate 21. A stuffing 17 is provided at one end of the stuffing chamber 3, and a copper ring stuffing 16 is provided at the other end of the stuffing chamber 3. An end gland 1 is provided on the surface of the stuffing chamber 3 near the stuffing 17. Both ends of the surface of the stuffing chamber 3 are provided with stuffing chamber side ears. The labyrinth outer ring 7 is sleeved on the surface of the stuffing chamber 3. Two labyrinth outer ring side ears 9 are provided on the outside of the labyrinth outer ring 7. A second sealing gasket 23 is provided on the outer surface of the labyrinth outer ring 7. The second sealing gasket 23 is provided between the labyrinth outer ring 7 and the stuffing chamber 3. The lining plate 21 is provided outside the labyrinth. On one side of the ring 7 surface, a first sealing gasket 18 is installed on the surface of the liner 21 close to the side of the labyrinth outer ring 7. Two liner side ears 19 are fixedly connected to the outer surface of the liner 21. Liner bolt holes 20 are provided inside the two liner side ears 19. Through the setting of the sealing ring 12, the sealing ring 12 is inside the sealing ring groove 11. First, it plays a role in sealing to prevent powder and ash leakage, and second, it plays a role in isolating the stuffing chamber 3 from the labyrinth outer ring 7, so that the labyrinth outer ring 7 and the stuffing chamber 3 can move up, down, left and right. The sealing ring 12>1000℃, the labyrinth outer ring and the stuffing chamber can move up, down, left and right, which is suitable for the environment where the pipe shakes.
[0019] Reference Figure 1 、 Figure 3 and Figure 5 In a preferred embodiment, the stuffing chamber 3 is a two-lobed type, and the two-lobed stuffing chambers 3 are connected by bolts and limit pins. A plurality of stuffing chamber and gland connecting bolt holes 5 are provided on the surface of the stuffing chamber 3, and a plurality of gland and stuffing chamber connecting bolt holes 4 are provided on the surface of the end gland 1. The gland and stuffing chamber connecting bolt holes 4 correspond to the stuffing chamber and gland connecting bolt holes 5. The gland and stuffing chamber connecting bolt holes 4 and the stuffing chamber and gland connecting bolt holes 5 are connected by bolts. The end gland 1 is fixedly connected to a boss 2 near the side of the stuffing chamber 3. The boss 2 is arranged inside the stuffing chamber 3. An end gland through-axis hole is provided at the center of the end gland 1. The packing 17 is built into the stuffing chamber 3, close to the copper ring packing 16, to avoid the packing 17 from being misplaced and overturned in the stuffing chamber 3.
[0020] Reference Figure 1 and Figure 4In a preferred embodiment, a circular groove is provided on the inner wall of the labyrinth outer ring 7, and three circular rings are fixedly connected to the outer wall of the filling chamber 3. The middle circular ring slides inside the circular groove. The labyrinth outer ring 7 is arranged between two circular rings away from each other. Two sealing ring grooves 11 are provided on the outer surface of the middle circular ring. Sealing rings are provided inside the two sealing ring grooves 11. Sealing rings 12 are provided inside the two sealing ring grooves 11. Through holes 14 are provided on the surfaces of the circular rings away from each other. The filling chamber 3 and the labyrinth outer ring 7 are made of carbon steel to ensure the stability of the equipment. The labyrinth outer ring 7 and the filling chamber 3 are inlaid, and the left and right gaps are 2 mm and the upper and lower gaps are 10 mm, which ensures the mobility of the labyrinth outer ring and the filling chamber and can adapt to the environment of pipe shaking.
[0021] Reference Figure 1 and Figure 2 In a preferred embodiment, a plurality of first sealing gasket bolt holes 8 are provided on one side of the surface of the labyrinth outer ring 7, a plurality of labyrinth outer ring and liner connection bolt holes 10 are provided on the other side of the surface of the labyrinth outer ring 7, a plurality of liner bolt holes 20 are provided on the surface of the liner 21, the plurality of labyrinth outer ring and liner connection bolt holes 10 cooperate with the plurality of liner bolt holes 20, the plurality of labyrinth outer ring and liner connection bolt holes 10 and the plurality of liner bolt holes 20 are connected by bolts, a second packing chamber bolt hole 15 is provided on the side near the liner 21 inside the packing chamber 3, two labyrinth outer ring side ears 9 are fixedly connected to the surface of the labyrinth outer ring 7, a first packing chamber bolt hole 6 is provided on the surface of the packing chamber 3, and a second sealing gasket bolt hole 13 is provided on the surface of the labyrinth outer ring 7.
[0022] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: in actual use, by adopting a split combined structure, the stuffing chamber 3, the labyrinth outer ring 7 and the end pressure cover 1 can be freely disassembled and assembled, and taken out independently, which is more convenient for disassembly and assembly than the existing sealing form, and the stuffing chamber 3 has quantitative and visual installation of the stuffing 17, and can clearly observe the number of installed stuffing 17 and whether the installed stuffing 17 fills the entire internal cavity of the stuffing chamber 3, avoiding the randomness and invisibility of replacing the stuffing 17 in the existing sealing structure, greatly improving the sealing effect, reducing the occurrence of air leakage and powder leakage, and greatly improving the economy and environmental protection of the production process. At the same time, the stuffing chamber 3 and the labyrinth outer ring 7 are movable, which can be used in a pipe shaking environment and ensure that there is no air leakage and powder leakage, which is more practical.
[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A novel split-combination mosaic seal structure, comprising a packing chamber (3), a labyrinth outer ring (7) and a liner (21), characterized in that: A packing (17) is provided at one end of the packing chamber (3), a copper ring packing (16) is provided at the other end of the packing chamber (3), an end gland (1) is provided on the surface of the packing chamber (3) close to the packing (17), and packing chamber side ears are provided at both ends of the surface of the packing chamber (3); The labyrinth outer ring (7) is sleeved on the surface of the packing chamber (3), two labyrinth outer ring side ears (9) are provided on the outside of the labyrinth outer ring (7), a second sealing gasket (23) is provided on the outer surface of the labyrinth outer ring (7), and the second sealing gasket (23) is provided between the labyrinth outer ring (7) and the packing chamber (3); A lining plate (21) is arranged on one side of the surface of the labyrinth outer ring (7), and a first sealing gasket (18) is installed on the side of the lining plate (21) close to the labyrinth outer ring (7). Two lining plate side ears (19) are fixedly connected to the outer surface of the lining plate (21), and lining plate bolt holes (20) are arranged inside the two lining plate side ears (19).
2. A novel split-combination mosaic sealing structure according to claim 1, characterized in that: The packing chamber (3) is a two-lobed packing chamber, and the two-lobed packing chambers (3) are connected by bolts and limit pins. The surface of the packing chamber (3) is provided with a plurality of packing chamber and pressure cover connection bolt holes (5). The surface of the end pressure cover (1) is provided with a plurality of pressure cover and packing chamber connection bolt holes (4). The pressure cover and packing chamber connection bolt holes (4) correspond to the packing chamber and pressure cover connection bolt holes (5). The pressure cover and packing chamber connection bolt holes (4) and the packing chamber and pressure cover connection bolt holes (5) are connected by bolts.
3. A novel split-combination mosaic sealing structure according to claim 2, characterized in that: A boss (2) is fixedly connected to one side of the end gland (1) close to the stuffing chamber (3), and the boss (2) is arranged inside the stuffing chamber (3).
4. A novel split-combination mosaic sealing structure according to claim 3, characterized in that: The inner wall of the labyrinth outer ring (7) is provided with a circular groove, and the outer wall of the stuffing chamber (3) is fixedly connected with three circular rings, the middle circular ring slides inside the circular groove, and the labyrinth outer ring (7) is arranged between two circular rings that are far away from each other, and the outer surface of the middle circular ring is provided with two sealing ring grooves (11), and the inside of the two sealing ring grooves (11) is provided with a sealing ring, and the inside of the two sealing ring grooves (11) is provided with a sealing ring (12), and the surfaces of the circular rings that are far away from each other are provided with through holes (14).
5. A novel split-combination mosaic sealing structure according to claim 4, characterized in that: A plurality of first sealing gasket bolt holes (8) are provided on one side of the surface of the labyrinth outer ring (7), a plurality of labyrinth outer ring and liner connection bolt holes (10) are provided on the other side of the surface of the labyrinth outer ring (7), a plurality of liner bolt holes (20) are provided on the surface of the liner (21), the plurality of labyrinth outer ring and liner connection bolt holes (10) are matched with the plurality of liner bolt holes (20), and the plurality of labyrinth outer ring and liner connection bolt holes (10) and the plurality of liner bolt holes (20) are connected by bolts.
6. A novel split-combination mosaic sealing structure according to claim 5, characterized in that: A second packing chamber bolt hole (15) is provided inside the packing chamber (3) near the liner (21), two labyrinth outer ring side ears (9) are fixedly connected to the surface of the labyrinth outer ring (7), a first packing chamber bolt hole (6) is provided on the surface of the packing chamber (3), and a second sealing gasket bolt hole (13) is provided on the surface of the labyrinth outer ring (7).