CN207527572U - A kind of sealing structure for preventing pendant superheater dilatancy - Google Patents
A kind of sealing structure for preventing pendant superheater dilatancy Download PDFInfo
- Publication number
- CN207527572U CN207527572U CN201721483776.9U CN201721483776U CN207527572U CN 207527572 U CN207527572 U CN 207527572U CN 201721483776 U CN201721483776 U CN 201721483776U CN 207527572 U CN207527572 U CN 207527572U
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- CN
- China
- Prior art keywords
- pendant superheater
- water screen
- screen tube
- casing
- superheater
- 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.)
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model belongs to circulating fluidized bed boiler sealing device field, more particularly to a kind of sealing structure for preventing pendant superheater dilatancy, its installation is simple and convenient, it can solve the problems, such as that existing pendant superheater expansion impediment is yielding, it includes pendant superheater and water screen tube, pendant superheater passes through the area under control that allows of water screen tube, water screen tube upper end is provided with seal casing and type metal expansion joint, casing is provided with outside pendant superheater, it is connected between adjacent water screen tube by band steel, perforation corresponding with casing is provided on the band steel for allowing area under control, suit bottom is connect with pendant superheater, top is connect with type metal expansion joint, type metal expansion joint is with being filled with aluminosilicate fiberboard in seal casing.
Description
Technical field
The utility model belongs to circulating fluidized bed boiler sealing device field, and in particular to one kind prevents pendant superheater swollen
The sealing structure of bulging deformation.
Background technology
As requirement of the country to pollutant emission is increasingly strict, station boiler and Industrial Boiler are to clean energy technology
Demand is also stepped up, and Combustion technology of circulating fluidized utilizes skill as a kind of advanced low-grade fuel clean and effective burning
Art, it is of increased attention, and grown rapidly in recent years.
Pendant superheater is component part important in circulating fluidized bed boiler, belongs to a part for boiler superheater,
Main function is that saturated vapor is heated into superheated steam, and pendant superheater is arranged on the superheater in boiler furnace, both ends
It is pierced by respectively from the top of front water wall and forepart.It is special to arrange that pendant superheater contributes to Circulating Fluidized Bed Boiler
It is most important to reach specified Stream temperature degree for boiler when being not underload.
There are differential expansion when being run due to pendant superheater and water screen tube, the expansion that can pendant superheater freely determines
It the service life of pendant superheater pipe and the operational safety of boiler, therefore is in the sealing structure that pendant superheater is worn at water screen tube
It is no that can guarantee that pendant superheater expands freely in the case of sealing just very crucial.
The sealing means of pendant superheater are that complete welded seal is worn at front water wall as pendant superheater in lower part
Thermal expansion dead point, top is worn allows pipe to do seal casing and type metal expansion joint outward at the top of water-cooling wall using water screen tube, close
Its complementary space of packet aluminosilicate fiberboard is filled by castable at sealing cover shell and the energy saving pipe of expansion of metal.Top structure through walls is existing
It often will appear castable during the actual installation of field and pipe accidentally poured into jail so that pendant superheater pipe, which can not expand, to be become
Shape, the requirement that this structure pours in-site installation personnel are higher.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of sealing knot for preventing pendant superheater dilatancy
Structure, installation is simple and convenient, can solve the problems, such as that existing pendant superheater expansion impediment is yielding.
Its technical solution is such：A kind of sealing structure for preventing pendant superheater dilatancy, including screen formula mistake
Hot device and water screen tube, the pendant superheater pass through the area under control that allows of the water screen tube, and the water screen tube upper end is provided with
Seal casing and type metal expansion joint, which is characterized in that casing, the adjacent water-cooling wall are provided with outside the pendant superheater
It is connected between pipe by band steel, perforation corresponding with casing, the suit bottom is provided on the band steel for allowing area under control
Portion is connect with the pendant superheater, top is connect with the type metal expansion joint, the type metal expansion joint and the seal casing
It is interior to be filled with aluminosilicate fiberboard.
Area under control is allowed to allow structure to be flat it is further characterized by, the water screen tube, it is described flat structure to be allowed to include arrangement
Two water screen tubes in the pendant superheater both sides.
After the structure of the utility model, casing is added, personnel are very accurate careful to use silicon without installation is allowed to pour
Sour aluminum fiberboard separates casing and castable, and only aluminosilicate fiberboard need to be filled up to seal casing and type metal expansion joint and compressed
, without castable, installation is simple and convenient so that pendant superheater pipe and casing energy free wxpansion；Further, water-cooling wall
Pipe allows area under control to be allowed, and band steel opens perforation and forms comb shape harden structure using flat, effectively prevents flue gas and alter to burn out silicon into case
Sour aluminum fiberboard.
Description of the drawings
Fig. 1 is the utility model structural front view；
Fig. 2 is the utility model structural side view；
Fig. 3 is sectional view at A-A in Fig. 1.
Specific embodiment
See Fig. 1, shown in Fig. 2, a kind of sealing structure for preventing pendant superheater dilatancy, including pendant superheater 1
With water screen tube 2, what pendant superheater 1 passed through water screen tube 2 allows area under control, and area under control is allowed to allow structure to be flat, flat that structure is allowed to include cloth
Two water screen tubes 2 of 1 both sides of pendant superheater are placed in, 2 upper end of water screen tube is provided with seal casing 3 and type metal expansion joint 4,
Casing 5 is provided with outside pendant superheater 1, is connected between adjacent water screen tube 2 by band steel 7, positioned at allowing the band steel 7 in area under control
On be provided with perforation 6 corresponding with casing and form comb shape harden structures 8,5 bottoms of suit are connect with pendant superheater 1, top and metal
Expansion joint 4 connects, and type metal expansion joint 4 is with being filled with aluminosilicate fiberboard 9 in seal casing 3.1 free wxpansion of pendant superheater has
Effect ensure that its service life and the prolonged safe operation of energy.
Claims (2)
1. a kind of sealing structure for preventing pendant superheater dilatancy, including pendant superheater and water screen tube, the screen
Formula superheater passes through the area under control that allows of the water screen tube, and the water screen tube upper end is provided with seal casing and type metal expansion joint,
It is characterized in that, being provided with casing outside the pendant superheater, connected between the adjacent water screen tube by band steel, position
In being provided with perforation corresponding with casing on the band steel for allowing area under control, described sleeve pipe bottom connects with the pendant superheater
Connect, top is connect with the type metal expansion joint, aluminosilicate fiberboard is filled in the type metal expansion joint and the seal casing.
2. a kind of sealing structure for preventing pendant superheater dilatancy according to claim 1, which is characterized in that described
Water screen tube allows area under control to allow structure to be flat, described flat structure to be allowed to include being arranged in described in two of the pendant superheater both sides
Water screen tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483776.9U CN207527572U (en) | 2017-11-09 | 2017-11-09 | A kind of sealing structure for preventing pendant superheater dilatancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483776.9U CN207527572U (en) | 2017-11-09 | 2017-11-09 | A kind of sealing structure for preventing pendant superheater dilatancy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207527572U true CN207527572U (en) | 2018-06-22 |
Family
ID=62581879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721483776.9U Active CN207527572U (en) | 2017-11-09 | 2017-11-09 | A kind of sealing structure for preventing pendant superheater dilatancy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207527572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795984A (en) * | 2017-11-09 | 2018-03-13 | 无锡华光锅炉股份有限公司 | Prevent the sealing structure of pendant superheater dilatancy |
-
2017
- 2017-11-09 CN CN201721483776.9U patent/CN207527572U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795984A (en) * | 2017-11-09 | 2018-03-13 | 无锡华光锅炉股份有限公司 | Prevent the sealing structure of pendant superheater dilatancy |
| CN107795984B (en) * | 2017-11-09 | 2023-10-20 | 无锡华光环保能源集团股份有限公司 | Sealing structure for preventing expansion deformation of screen type superheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |