CN207962625U - A kind of circulating fluidized bed boiler sullage pipe sealing structure - Google Patents
A kind of circulating fluidized bed boiler sullage pipe sealing structure Download PDFInfo
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- CN207962625U CN207962625U CN201721013577.1U CN201721013577U CN207962625U CN 207962625 U CN207962625 U CN 207962625U CN 201721013577 U CN201721013577 U CN 201721013577U CN 207962625 U CN207962625 U CN 207962625U
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- sealed groove
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Abstract
The utility model is related to the improvement of circulating fluidized bed boiler, especially a kind of circulating fluidized bed boiler sullage pipe sealing structure.Sealing structure is used for the sealed connection of boiler slag discharging tube and lag cooler interface, the sealing structure is including being cricoid sealing plug-in board and sealed groove, Open Side Down for the sealing plug-in board, it is fixed on boiler slag discharging tube outer tube wall, the sealed groove opening upwards are fixed on lag cooler interface outer tube wall, the sealing plug-in board outer diameter is less than sealed groove internal diameter, its lower end is inserted into sealed groove, and filling sealing substance inside sealed groove, height is more than the sealing plug-in board lower edge.The sealing structure of the utility model constructs the sealing structure of labyrinth type by sealing plug-in board and sealed groove, and lime-ash is made to be not easy to leak out；When expanding with heat and contract with cold, boiler slag discharging tube can freely stretch with lag cooler interface, sealing plug-in board and sealing substance can intimate engagement, eliminate leakage ash leakage slag phenomenon, increase leakproofness between the two.
Description
Technical field
The utility model is related to the improvement of circulating fluidized bed boiler, especially a kind of circulating fluidized bed boiler sullage pipe sealing
Structure.
Background technology
Recirculating fluidized bed is among a large amount of solid particles are suspended in the fluid of movement, to make particle have fluid certain
A little appearance features, this solid contact condition of stream are known as fluidization of solid, i.e. recirculating fluidized bed.Technology of Circulating Fluidized Bed Boiler is close
The high-efficiency low-pollution cleaning burning branch art rapidly developed for over ten years, this technology is in station boiler, Industrial Boiler and gives up
Gurry processing such as utilizes to have obtained extensive commercial application at the fields.
In circulating fluidized bed boiler tapping equipment, as shown in Figure 1, boiler slag discharging tube 10 is inserted directly into lag cooler interface
20, the two general-purpose interface 30 connects.In use, since each component is inconsistent by high-temperature expansion, boiler slag discharging tube 10
With easy cracking at lag cooler interface 20, gap is formed, leakage ash is extremely serious, and former design sealing effect weakens significantly, leaks ash leakage
Slag aggravates pollution power station environment, occurs scum pipe drawing crack phenomenon when serious, influences the safe operation of unit.
Utility model content
For the above deficiency, the utility model provides a kind of circulating fluidized bed boiler sullage pipe sealing structure, can disappear
Except due to high-temperature expansion it is inconsistent caused by the grey phenomenon of leakage, reinforce the leakproofness of scum pipe.
The technical solution of the utility model is：
A kind of circulating fluidized bed boiler sullage pipe sealing structure, sealing structure is for boiler slag discharging tube and lag cooler interface
It is tightly connected, the boiler slag removal pipe outside diameter is less than lag cooler interface internal diameter, and lag cooler interface internal is inserted into lower end；It is special
Sign is that the sealing structure is including being cricoid sealing plug-in board and sealed groove, and Open Side Down for the sealing plug-in board, fixed
In boiler slag discharging tube outer tube wall, the sealed groove opening upwards are fixed on lag cooler interface outer tube wall, outside the sealing plug-in board
Diameter is less than sealed groove internal diameter, and lower end is inserted into sealed groove, and filling sealing substance inside sealed groove, height is more than institute
State sealing plug-in board lower edge.
The sealing substance is quartz sand.
The sealing plug-in board and sealed groove are respectively welded in boiler slag discharging tube and lag cooler interface outer tube wall.
The sealing structure of the utility model is constructed the sealing structure of labyrinth type by sealing plug-in board and sealed groove, makes ash
Slag is not easy to leak out；When expanding with heat and contract with cold, boiler slag discharging tube can freely stretch with lag cooler interface, sealing plug-in board and close
Seal substance can intimate engagement, eliminate leakage ash leakage slag phenomenon, increase leakproofness between the two.
Description of the drawings
Fig. 1 is prior art circulating fluidized bed boiler sullage pipe sealing structure construction profile；
Fig. 2 is the utility model circulating fluidized bed boiler sullage pipe sealing structure construction profile.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
With reference to figure 2, the circulating fluidized bed boiler sullage pipe sealing structure of the utility model, sealing structure is used for boiler slag removal
The sealed connection of pipe 10 and lag cooler interface 20,10 outer diameter of the boiler slag discharging tube are less than 20 internal diameter of lag cooler interface, lower end
Portion is inserted into inside lag cooler interface 20.The sealing structure include be cricoid sealing plug-in board 11 and sealed groove 12, it is described
Open Side Down for sealing plug-in board 11, is fixedly welded on 10 outer tube wall of boiler slag discharging tube, 12 opening upwards of the sealed groove, welding is admittedly
Due to 20 outer tube wall of lag cooler interface, 11 outer diameter of the sealing plug-in board is less than 12 internal diameter of sealed groove, and sealing ditch is inserted into lower end
In slot 12, quartz sand 22 is filled in 12 inside of sealed groove, and height is more than 11 lower edge of the sealing plug-in board.
The sealing structure of the utility model, 10 lower end of boiler slag discharging tube are inserted into inside lag cooler interface 20, sealing plug-in board
11 lower ends be inserted into sealed groove 12 in, formed four layers of labyrinth structure, effective guarantee boiler slag discharging tube 10 be discharged waste residue all into
Enter to lag cooler, will not sputter and.When temperature change generation is expanded with heat and contract with cold, boiler slag discharging tube 10 and lag cooler interface 20
Can freely stretch, sealing plug-in board 11 and sealing substance 22 can intimate engagement, eliminate leakage ash leakage slag phenomenon, increase between the two
Leakproofness.
Disclosed above is only the embodiments of the present invention, and still, the utility model is not limited to this, any ability
What the technical staff in domain can think variation should all fall into the scope of protection of the utility model.
Claims (3)
1. a kind of circulating fluidized bed boiler sullage pipe sealing structure, sealing structure is used for boiler slag discharging tube (10) and lag cooler interface
(20) sealed connection, boiler slag discharging tube (10) outer diameter are less than lag cooler interface (20) internal diameter, and cold slag is inserted into lower end
Machine interface (20) is internal；It is characterized in that, it is cricoid sealing plug-in board (11) and sealed groove that the sealing structure, which includes,
(12), Open Side Down for the sealing plug-in board (11), is fixed on boiler slag discharging tube (10) outer tube wall, sealed groove (12) opening
Upwards, it is fixed on lag cooler interface (20) outer tube wall, sealing plug-in board (11) outer diameter is less than sealed groove (12) internal diameter, under
End is inserted into sealed groove (12), and filling sealing substance (22) inside sealed groove (12), height is more than the sealing plug-in board
(11) lower edge.
2. circulating fluidized bed boiler sullage pipe sealing structure according to claim 1, which is characterized in that the sealing substance
(22) it is quartz sand.
3. circulating fluidized bed boiler sullage pipe sealing structure according to claim 1, which is characterized in that the sealing plug-in board
(11) it is respectively welded in boiler slag discharging tube (10) and lag cooler interface (20) outer tube wall with sealed groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013577.1U CN207962625U (en) | 2017-08-14 | 2017-08-14 | A kind of circulating fluidized bed boiler sullage pipe sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013577.1U CN207962625U (en) | 2017-08-14 | 2017-08-14 | A kind of circulating fluidized bed boiler sullage pipe sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207962625U true CN207962625U (en) | 2018-10-12 |
Family
ID=63724217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013577.1U Expired - Fee Related CN207962625U (en) | 2017-08-14 | 2017-08-14 | A kind of circulating fluidized bed boiler sullage pipe sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207962625U (en) |
-
2017
- 2017-08-14 CN CN201721013577.1U patent/CN207962625U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |