CN219734603U - Boiler bottom sealing device - Google Patents
Boiler bottom sealing device Download PDFInfo
- Publication number
- CN219734603U CN219734603U CN202320500647.5U CN202320500647U CN219734603U CN 219734603 U CN219734603 U CN 219734603U CN 202320500647 U CN202320500647 U CN 202320500647U CN 219734603 U CN219734603 U CN 219734603U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- boiler
- heat insulation
- insulation layer
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 3
- 229920001973 fluoroelastomer Polymers 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a boiler bottom sealing device, which comprises: the expansion joint comprises an expansion joint skin and a heat insulation layer, wherein the expansion joint skin is arranged between a water cooling wall and a slag well of the boiler, and the heat insulation layer is arranged in the expansion joint skin. The device provided by the embodiment of the utility model eliminates the water seal tank at the bottom of the traditional boiler, adopts the expansion joint skin and the heat insulation layer for sealing, does not need a water supply system, can absorb expansion deformation of the boiler in all directions and bear the maximum pressure of a hearth, and relieves the technical problems that the water seal structure at the bottom of the boiler in the prior art needs the water supply system for regular water supplement and the water seal plate is easy to corrode when immersed in the water seal tank.
Description
Technical Field
The utility model relates to the technical field of furnace bottom sealing, in particular to a boiler bottom sealing device.
Background
The existing boiler and the slag dragging machine are sealed in a water seal structure mode. The boiler bottom water seal structure needs the water supply system to carry out periodic water supply, and the water seal board is immersed in the water seal groove and is easy to corrode.
Disclosure of Invention
The object of the present utility model is to provide a boiler bottom sealing device in order to solve at least one of the above mentioned technical problems.
In a first aspect, an embodiment of the present utility model provides a boiler bottom sealing device, including: the expansion joint comprises an expansion joint skin and a heat insulation layer, wherein the expansion joint skin is arranged between a water cooling wall and a slag well of a boiler, and the heat insulation layer is arranged in the expansion joint skin.
Further, the expansion joint skin is made of fluororubber glass fiber cloth, stainless steel wire mesh and silicone fluororubber.
Further, an upper frame assembly is arranged on the outer side of the water-cooled wall, and the heat insulation layer is fixed on the upper frame assembly through a pressing strip; the expansion joint skin is bolted to the upper frame assembly.
Further, a lower frame assembly is arranged at the position of a slag falling port of the slag well; the heat insulation layer is fixed on the lower frame assembly through a pressing strip; the expansion joint skin is bolted to the lower frame assembly.
The utility model provides a boiler bottom sealing device, which cancels a water seal tank at the bottom of a traditional boiler, adopts an expansion joint skin and a heat insulation layer to seal, does not need a water supply system, can absorb expansion deformation of the boiler in all directions and bear the maximum pressure of a hearth, and relieves the technical problems that the water supply system is required to periodically supplement water and a water seal plate is easy to corrode when immersed in the water seal tank in the boiler bottom sealing structure in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the embodiments and the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a boiler bottom sealing device according to an embodiment of the present utility model.
In the figure: 1. expansion joint skin, 2, insulating layer, 3, water-cooled wall, 4, slag well, 5, upper frame assembly, 6, layering, 7, bolt, 8, lower frame assembly.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
FIG. 1 is a schematic view of a boiler bottom sealing device provided in accordance with an embodiment of the present utility model. As shown in fig. 1, the apparatus includes: the expansion joint comprises an expansion joint skin 1 and a heat insulation layer 2, wherein the expansion joint skin 1 is arranged between a water cooling wall 3 and a slag well 4 of a boiler, and the heat insulation layer 2 is arranged in the expansion joint skin 1.
Optionally, in the embodiment of the present utility model, the material of the expansion joint skin 1 is a material formed by compounding fluororubber glass fiber cloth, stainless steel wire mesh and silicone fluororubber.
Specifically, as shown in fig. 1, an upper frame assembly 5 is further arranged on the outer side of the water-cooled wall 3, and the heat insulation layer 2 is fixed on the upper frame assembly 5 through a pressing strip 6; the expansion joint skin 1 is fixed to the upper frame assembly 5 by bolts 7.
Specifically, as shown in fig. 1, a lower frame assembly 8 is arranged at the slag hole position of the slag well 4; the heat insulation layer 2 is fixed on the lower frame assembly 8 through the pressing strip 6; the expansion joint skin 1 is fixed to the lower frame assembly 8 by bolts 7.
The embodiment of the utility model provides a sealing device for the bottom of a boiler, which is used for sealing a water-cooled wall and a slag well of the boiler. When the expansion deformation of the boiler in the vertical direction is changed within the range of +/-10%, the mechanical seal can be ensured to be normally used. The nonmetallic compensator material can meet the requirements of bearing the high temperature of smoke and air and the corrosion and abrasion of the smoke. The expansion joint skin is formed by compounding fluororubber glass fiber cloth, stainless steel wire mesh and silicone fluororubber, and has the characteristic of smoke corrosion resistance. The contact surface with high-temperature air or flue gas is provided with a heat insulation layer (a dust cover), and the heat insulation layer has the heat insulation function and also has the function of preventing dust in the flue gas from entering the compensator. The inner and outer stainless steel metal meshes can effectively collide with the hard metal substances in a backlog manner.
The utility model provides a boiler bottom sealing device, which cancels a water seal tank at the bottom of a traditional boiler, adopts an expansion joint skin and a heat insulation layer to seal, does not need a water supply system, can absorb expansion deformation of the boiler in all directions and bear the maximum pressure of a hearth, and relieves the technical problems that the water supply system is required to periodically supplement water and a water seal plate is easy to corrode when immersed in the water seal tank in the boiler bottom sealing structure in the prior art.
The embodiment of the utility model also provides a boiler, which comprises the boiler bottom sealing device provided by the embodiment of the utility model.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. A boiler bottom sealing apparatus, comprising: the expansion joint comprises an expansion joint skin and a heat insulation layer, wherein the expansion joint skin is arranged between a water-cooled wall of a boiler and a slag well, and the heat insulation layer is arranged in the expansion joint skin;
an upper frame assembly is further arranged on the outer side of the water-cooled wall, and the heat insulation layer is fixed on the upper frame assembly through a pressing strip; the expansion joint skin is bolted to the upper frame assembly.
2. The boiler bottom sealing device according to claim 1, wherein: a lower frame assembly is arranged at the slag hole of the slag well; the heat insulation layer is fixed on the lower frame assembly through a pressing strip; the expansion joint skin is bolted to the lower frame assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500647.5U CN219734603U (en) | 2023-03-15 | 2023-03-15 | Boiler bottom sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500647.5U CN219734603U (en) | 2023-03-15 | 2023-03-15 | Boiler bottom sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734603U true CN219734603U (en) | 2023-09-22 |
Family
ID=88062009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320500647.5U Active CN219734603U (en) | 2023-03-15 | 2023-03-15 | Boiler bottom sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734603U (en) |
-
2023
- 2023-03-15 CN CN202320500647.5U patent/CN219734603U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |