CN217422202U - Improved flexible sealing device for slag discharge boiler - Google Patents
Improved flexible sealing device for slag discharge boiler Download PDFInfo
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- CN217422202U CN217422202U CN202220422392.0U CN202220422392U CN217422202U CN 217422202 U CN217422202 U CN 217422202U CN 202220422392 U CN202220422392 U CN 202220422392U CN 217422202 U CN217422202 U CN 217422202U
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Abstract
The application provides a flexible sealing device of improved generation sediment boiler, includes: the heat insulation structure comprises an upper frame, a lower frame, an upper support flange, a lower support flange, a flexible connection and a heat insulation material; the upper frame is fixed with the bottom of the slag discharging boiler, and the lower frame is fixed with the slag well; the upper frame comprises an upper framework and an upper guide plate, the lower frame comprises a lower framework and a lower guide plate, and the upper guide plate and the lower guide plate are arranged in parallel in a staggered manner; one end of the flexible connection is fixed with the upper framework through an upper supporting flange, and the other end of the flexible connection is fixed with the lower framework through a lower supporting flange; a heat insulation filling chamber is enclosed among the flexible connection, the upper frame and the lower frame; and the heat insulation material is filled in the heat insulation filling chamber. The utility model provides a flexible sealing device of improved generation sediment boiler can thoroughly eliminate stove bottom air leakage, effectively alleviates the problem that the water-cooling wall damaged, improves sediment boiler bottom operational environment simultaneously, improves boiler efficiency.
Description
Technical Field
The utility model belongs to the technical field of the design of coal-fired row's sediment boiler slag removal equipment, in particular to flexible sealing device of improved generation row's sediment boiler.
Background
The seal structure of the water seal groove is generally adopted between the bottom of the power plant boiler and the slag well at present, but the water seal groove is sealed, a large amount of slag and furnace dust often fall into inside, thereby when leading to the furnace body to be heated and expanded, the water seal picture peg can not be compensated, finally lead to deforming and damaging the water-cooling wall, simultaneously still can appear leaking the wind clearance, and then lead to the boiler burning insufficient.
The problems of complex system, high maintenance difficulty and the like exist in the use process of the water seal groove sealing structure, and when the water seal at the bottom of the furnace breaks down, the energy consumption and the safe and reliable operation of the unit can be seriously influenced.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the application provides a flexible sealing device of improved generation sediment boiler, can thoroughly eliminate the stove bottom and leak out, effectively alleviates the problem that the water-cooling wall damaged, improves sediment boiler bottom operational environment simultaneously, improves boiler efficiency.
In order to achieve the purpose, the technical scheme of the application is as follows:
the application provides a flexible sealing device of improved generation sediment boiler, the device includes: the heat insulation structure comprises an upper frame, a lower frame, an upper support flange, a lower support flange, a flexible connection and a heat insulation material;
the upper frame is fixed with the bottom of the slag discharging boiler, and the lower frame is fixed with the slag well;
the upper frame comprises an upper framework and an upper guide plate, the lower frame comprises a lower framework and a lower guide plate, and the upper guide plate and the lower guide plate are arranged in parallel in a staggered mode;
one end of the flexible connection is fixed with the upper framework through the upper supporting flange, and the other end of the flexible connection is fixed with the lower framework through the lower supporting flange;
a heat insulation filler chamber is enclosed among the flexible connection, the upper frame and the lower frame;
the heat insulation material is filled in the heat insulation filling chamber.
In a possible realization mode, the upper guide plate is close to the inner side of the slag discharging boiler, the lower guide plate is close to the outer side of the slag discharging boiler, and the filling opening of the heat insulation filling chamber faces downwards, so that ash slag is difficult to fall into.
In a possible implementation manner, the upper frame and the lower frame are C-shaped structures, one end of the upper frame is used for arranging the upper support flange, and one end of the lower frame is used for arranging the lower support flange.
In a possible implementation manner, the fixing manner of the upper frame and the bottom of the slagging boiler is as follows: the other end of the upper framework is fixed with the bottom of the slag removal boiler, or the upper guide plate is fixed with the bottom of the slag removal boiler.
Specifically, when the upper guide plate is fixed with the bottom of the slag discharging boiler, a single bolt pressing sheet is adopted for connection. It is noted that the number of baffles, as well as the length of the baffles, may be set as desired.
In one possible implementation manner, the fixing manner of the lower frame and the slag well is as follows: the other end of the lower framework is fixed with the slag well, or the lower guide plate is fixed with the slag well.
In a possible implementation manner, the device further comprises a bolt pressing plate woven mesh accessory, and the bolt pressing plate woven mesh accessory is arranged at the joint of the flexible connection and the upper support flange; the joint of the flexible connection and the lower supporting flange is provided with the bolt pressing plate woven net accessory.
In one possible implementation, the flexible connection is composed of 8 layers of high temperature resistant flexible sealing material, and the high temperature resistant flexible sealing material sequentially comprises from the outside of the furnace to the inside of the furnace: a layer of stainless steel wire mesh; a layer of fluororubber cloth; two layers of aluminum silicate needle-punched blankets; two layers of alkali-free glass fiber cloth; a polytetrafluoroethylene membrane; a layer of silicone rubber cloth.
In one possible implementation, the width of the flexible connection is 1000mm to 1300 mm.
In one possible implementation, the distance between the upper baffle and the lower baffle is 80mm to 120 mm.
In one possible implementation, the sealing device further comprises an explosion vent; the explosion door is fixedly arranged between the upper frame and the bottom of the slag-discharging boiler.
In a possible implementation manner, the lower frame further includes a lower guide plate fixing rib plate, and the lower guide plate fixing rib plate is used for fixing the lower guide plate and the lower framework.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that must be used in the embodiments will be briefly described below, it being understood that the drawings only show some embodiments of the invention and are therefore not to be considered limiting of scope, other related drawings can also be obtained on the basis of the drawings for a person skilled in the art without inventive effort.
FIG. 1 is a schematic structural view of an improved flexible sealing device of a slagging boiler provided by the present application;
FIG. 2 is a schematic diagram of various performance parameters of the improved flexible sealing device of the slagging boiler under the load of 600 MW.
In the figure: 1. soft connection; 2. an upper deflector; 3. an upper frame; 4. a lower deflector; 5. a lower frame; 6. an upper support flange; 7. a lower supporting flange; 8. a thermal insulation material; 9. an explosion vent; 10. the lower guide plate is fixed with a rib plate.
Detailed Description
In order to clearly explain the technical features of the present solution, the present application will be explained in detail by the following embodiments with reference to the accompanying drawings.
The embodiment of the application provides a flexible sealing device of sediment boiler is arranged to improved generation can thoroughly eliminate the stove bottom and leak out, effectively alleviates the problem that the water-cooling wall damaged, improves sediment boiler bottom operational environment simultaneously, improves boiler efficiency.
As shown in fig. 1, the present application provides an improved flexible sealing device for a slagging boiler, which comprises: the device comprises an upper frame, a lower frame, an upper supporting flange 6, a lower supporting flange 7, a flexible connection 1 and a heat insulation material 8.
The upper frame is fixed with the bottom of the slag discharging boiler, and the lower frame is fixed with the slag well.
In this application embodiment, the upper ledge sets up around the stove bottom, the lower frame sets up around the sediment well, and the flexible coupling sets up around the stove bottom.
In the embodiment of the application, the upper frame is connected with a water wall pipe of the furnace bottom.
The upper frame comprises an upper framework 3 and an upper guide plate 2, the lower frame comprises a lower framework 5 and a lower guide plate 4, and the upper guide plate 2 and the lower guide plate 4 are arranged in parallel in a staggered mode.
In one example, the upper guide plate 2, the lower guide plate 4, the upper support flange, the lower support flange and the flexible connection 1 form an insulating chamber. In this application embodiment, boiler furnace cold and hot attitude expansion distance is 341mm, and the purpose of going up guide plate 2 and lower guide plate 4 purchase dislocation parallel arrangement is in order to prevent that it destroys overall structure to go up guide plate 2 and lower guide plate 4 collision deformation.
One end of the flexible connection 1 is fixed with the upper framework 3 through the upper supporting flange 6, and the other end of the flexible connection 1 is fixed with the lower framework 5 through the upper supporting flange 7.
And a heat insulation filler chamber is enclosed among the flexible connection 1, the upper frame and the lower frame.
The heat insulating material 8 is filled in the heat insulating filler chamber.
In one example, the flexible connection 1 is composed of 8 layers of a high temperature resistant flexible sealing material.
In the embodiment of the application, the flexibly connected 8 layers of high-temperature resistant flexible sealing materials sequentially comprise from the outside of the furnace to the inside of the furnace: a layer of 316L stainless steel wire mesh; a layer of fluororubber cloth; two layers of aluminum silicate needle thread blanket; two layers of alkali-free glass fiber cloth; a polytetrafluoroethylene membrane; a layer of silicone rubber cloth.
In one example, the upper guide plate 2 is close to the inner side of the slagging boiler, the lower guide plate 4 is close to the outer side of the slagging boiler, and the filling opening of the heat insulation filling chamber faces downwards, so that ash slag is difficult to fall into.
In one example, the upper frame 3 and the lower frame 5 are C-shaped, one end of the upper frame 3 is used for arranging the upper support flange 6, and one end of the lower frame 5 is used for arranging the upper support flange 7.
In one example, the fixing manner of the upper frame and the bottom of the slagging boiler is as follows: the other end of the upper framework 3 is fixed with the bottom of the slag removal boiler, or the upper guide plate 2 is fixed with the bottom of the slag removal boiler.
Specifically, when the upper guide plate 2 is fixed with the bottom of the slag discharging boiler, a single bolt is adopted for tabletting connection. It is noted that the number of baffles, as well as the length of the baffles, may be set as desired.
In one example, the lower frame is fixed to the slag well in a manner that: the other end of the lower framework 5 is fixed with the slag well, or the lower guide plate 4 is fixed with the slag well.
In one example, the device further comprises a bolt pressing plate mesh grid accessory, wherein the bolt pressing plate mesh grid accessory is arranged at the joint of the flexible connection 1 and the upper support flange 6; the joint of the flexible connection 1 and the upper supporting flange 7 is provided with the bolt pressing plate woven mesh accessory.
In one example, the width of the flexible connection 1 is 1000mm to 1300 mm; in the embodiment of the present application, the width of the flexible connection 1 is 1250 mm.
The flexible connection 1 is designed as a one-piece type and plays a sealing role in the sealing device.
In one example, the distance between the upper baffle 2 and the lower baffle 4 is 80mm to 120mm, and in the embodiment of the present application, the distance between the upper baffle 2 and the lower baffle 4 is 100 mm. The upper guide plate 2 and the lower guide plate 4 are arranged to prevent the guide plates from expanding when slag is accumulated on the top of the slag well, so that boiler leakage is avoided; on the other hand, the upper guide plate and the lower guide plate 4 provide better coating capability for the heat insulation filler chamber.
In one example, the sealing device further comprises an explosion vent 9; the explosion door 9 is fixedly arranged between the upper frame and the bottom of the slag discharging boiler.
In an example, the lower frame further includes a lower deflector fixing rib plate 10, and the lower deflector fixing rib plate 10 is used for fixing the lower deflector 4 and the lower frame 5.
As shown in fig. 2, compared with the slag discharging boiler adopting the water seal groove sealing structure in the prior art, the slag discharging boiler adopting the improved flexible sealing device of the slag discharging boiler provided by the application has the advantages that various performance indexes are obviously improved, the exhaust gas temperature is reduced by 14 ℃, and the carbon content of large slag at the bottom of the boiler is reduced by about 3%.
According to the method, the coal consumption can be reduced by 1.7g/kW.h when the exhaust gas temperature is reduced by 10 ℃, and 3400 ton of fire coal can be saved per year when the annual power generation amount of a unit is 20 hundred million kilowatts, and the loss can be saved by 170 ten thousand yuan per ton according to the price of standard coal. Therefore, the reliable operation of the furnace bottom sealing equipment is ensured, and a solid foundation can be laid for the economic operation of the unit.
The improved flexible sealing device for the deslagging boiler provided by the embodiment of the application thoroughly eliminates air leakage at the bottom of the boiler, and ensures stable, economic and reliable operation of the boiler; greatly reducing the maintenance and operation cost and thoroughly improving the working environment of the furnace bottom; the exhaust gas temperature is reduced, and the boiler efficiency is improved.
Claims (10)
1. An improved flexible sealing device for a slagging boiler, characterized in that the device comprises: the device comprises an upper frame, a lower frame, an upper supporting flange, a lower supporting flange, a flexible connection and a heat insulation material;
the upper frame is fixed with the bottom of the slag discharging boiler, and the lower frame is fixed with the slag well;
the upper frame comprises an upper framework and an upper guide plate, the lower frame comprises a lower framework and a lower guide plate, and the upper guide plate and the lower guide plate are arranged in parallel in a staggered mode;
one end of the flexible connection is fixed with the upper framework through the upper supporting flange, and the other end of the flexible connection is fixed with the lower framework through the lower supporting flange;
a heat insulation filler chamber is enclosed among the flexible connection, the upper frame and the lower frame;
the heat insulation material is filled in the heat insulation filling chamber.
2. The improved flexible sealing device for slagging boiler according to claim 1, characterized in that said upper frame and said lower frame are of C-shaped structure, one end of said upper frame is used for disposing said upper support flange, and one end of said lower frame is used for disposing said lower support flange.
3. The improved flexible sealing device for the slagging boiler according to claim 2, wherein the other end of the upper framework is fixed to the bottom of the slagging boiler, or the upper guide plate is fixed to the bottom of the slagging boiler.
4. The improved flexible sealing device for slagging boiler according to claim 2, characterized in that the other end of the lower frame is fixed with the slag well or the lower deflector is fixed with the slag well.
5. The improved flexible sealing device for slagging boilers according to claim 1, characterized in that it further comprises bolted press plate mesh grid attachments located at the junction of the flexible connection and the upper support flange and at the junction of the flexible connection and the lower support flange.
6. The improved flexible sealing device for slagging boiler according to claim 5, characterized in that said flexible connection is composed of 8 layers of high temperature resistant flexible sealing material, said high temperature resistant flexible sealing material is sequentially from outside to inside: a layer of stainless steel wire mesh; a layer of fluororubber cloth; two layers of aluminum silicate needle-punched blankets; two layers of alkali-free glass fiber cloth; a polytetrafluoroethylene membrane; a layer of silicone rubber cloth.
7. The improved flexible sealing device for slagging boiler according to claim 6, characterized in that the width of the flexible connection is 1000 mm-1300 mm.
8. The improved flexible sealing device for slagging boiler according to claim 1, characterized in that the distance between the upper deflector and the lower deflector ranges from 80mm to 120 mm.
9. The improved flexible sealing device for slagging boiler according to claim 1, characterized in that it further comprises an explosion vent; the explosion door is fixedly arranged between the upper frame and the bottom of the slag-discharging boiler.
10. The improved flexible sealing device for the slagging boiler according to claim 1, wherein the lower frame further comprises a lower guide plate fixing rib plate, and the lower guide plate fixing rib plate is used for fixing the lower guide plate and the lower framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422392.0U CN217422202U (en) | 2022-02-28 | 2022-02-28 | Improved flexible sealing device for slag discharge boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422392.0U CN217422202U (en) | 2022-02-28 | 2022-02-28 | Improved flexible sealing device for slag discharge boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217422202U true CN217422202U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220422392.0U Active CN217422202U (en) | 2022-02-28 | 2022-02-28 | Improved flexible sealing device for slag discharge boiler |
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| CN (1) | CN217422202U (en) |
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- 2022-02-28 CN CN202220422392.0U patent/CN217422202U/en active Active
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