CN202267082U - Sealing device for labyrinth type air preheater - Google Patents
Sealing device for labyrinth type air preheater Download PDFInfo
- Publication number
- CN202267082U CN202267082U CN2011204030065U CN201120403006U CN202267082U CN 202267082 U CN202267082 U CN 202267082U CN 2011204030065 U CN2011204030065 U CN 2011204030065U CN 201120403006 U CN201120403006 U CN 201120403006U CN 202267082 U CN202267082 U CN 202267082U
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- CN
- China
- Prior art keywords
- plate
- sealing device
- gusset piece
- air preheater
- type air
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a sealing device for a labyrinth type air preheater. The sealing device comprises a connecting plate, a flexible wear-resistant piece fixedly arranged on the top end of the connecting plate, a front clamping plate and a rear clamping plate which are arranged at two side ends of the top part of the connecting plate, wherein installation holes are arranged on the connecting plate; an elastic support plate is further arranged between the rear clamping plate and the connecting plate; and the front clamping plate, the rear clamping plate and the elastic support plate are connected with the connecting plate in a fastening manner through bolts. The sealing device disclosed by the utility model has the characteristics of simple and reasonable structure, good sealing property, small leakage amount, easiness for adjusting shapes and long service life.
Description
Technical field
The utility model belongs to air preheater design of Sealing Structure technical field, is specifically related to a kind of sealing device that is used for the labyrinth type air preheater.
Background technology
In present domestic large-scale rotation air preheater structure, its inner sealing is a lamellar seal, and its structure is for being provided with radially around rotor rotated, axially and the hoop sealing pair, and seal is adjustable diaphragm seal, and diaphragm seal is fastened on the revolvable beam.Air preheater is divided into air side and fume side, has big pressure reduction between the two, because diaphragm seal has the certain designed gap, causes the problem of air to smoke spillage, the said exactly problem of leaking out.Normal air leak rate of air curtain design load is about 9%.Existing diaphragm seal is the rigidity sealing device, though can the adjusting play, can only adjustment when installing or shut down; Can not when work, to adjust, to bump mill in order preventing, the gap of adjustment is bigger when mounted; And irregular protuberance also can take place with variations in temperature in the rotating cylinder of air preheater in work; Cause the gap further to be strengthened, make actual air leak rate of air curtain, obviously increase energy consumption and operation cost up to 20% to 30%.
Patent documentation CN201434627Y discloses a kind of flexible seal device of rotary regenerative air preheater; Its structure comprises gusset piece, clamping plate and metal wire layer; The rear end of said metal wire layer clamps and is welded between gusset piece front end and the clamping plate; The front end of metal wire layer is the front end of flexible seal device, and gusset piece is provided with installing hole.But the bearing strength of this flexible seal device mainly is to rely on the elasticity of wire self to decide, and exists defective such as to be difficult for regulating, yielding, and service life is shorter.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure comparatively reasonable, good seal performance, and leakage rate is little, is prone to regulate shape and service life than the long sealing device that is used for the labyrinth type air preheater.
The technical scheme that realizes the utility model goal of the invention is: a kind of sealing device that is used for the labyrinth type air preheater comprises gusset piece, is fixedly installed on the flexible wearing piece on gusset piece top and is arranged on the front plate and the rear plate of gusset piece top two side ends; Gusset piece is provided with installing hole; Also be provided with elastically supported plate between said rear plate and the gusset piece, said front plate, rear plate, elastically supported plate and gusset piece are connected through bolted.
In the such scheme, said flexible wearing piece is a wire bundle, and said wire bundle is fixedly connected with gusset piece through melting welding or spot welding mode, and said wire bundle is fixed on the elastically supported plate through welding manner.
In the such scheme, the junction of said wire bundle and gusset piece forms weld layer, and said weld layer is between front plate, elastically supported plate.
The utlity model has following advantage: (1) the utility model is owing to be provided with elastically supported plate; In actual production; Shape and size through preset elastically supported plate; Be easy to regulate its deformation nature, also promptly can fully guarantee the deformation nature of flexible wearing piece, thereby prolong whole service life; In addition, the utility model is simple in structure comparatively reasonable, good seal performance, and leakage rate is less.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is a kind of application sketch map of sealing device shown in Figure 1.
Reference numeral is: gusset piece 1, installing hole 2, front plate 3, rear plate 4, flexible wearing piece 5, elastically supported plate 6, weld layer 7, bolt 8, rotating cylinder beam 9.
The specific embodiment
(embodiment 1)
Fig. 1 is a kind of structural representation of the utility model,
Fig. 1 and Fig. 2 have shown a kind of specific embodiment of the utility model, and wherein Fig. 1 is a kind of structural representation of the utility model; Fig. 2 is a kind of application sketch map of sealing device shown in Figure 1.
Present embodiment is a kind of sealing device that is used for the labyrinth type air preheater, comprises gusset piece 1, is fixedly installed on the flexible wearing piece 5 on gusset piece 1 top and is arranged on the front plate 3 and the rear plate 4 of gusset piece 1 top two side ends; Gusset piece 1 is provided with installing hole 2; It is characterized in that: also be provided with elastically supported plate 6 between said rear plate 4 and the gusset piece 1, said front plate 3, rear plate 4, elastically supported plate 6 and gusset piece 1 are fastenedly connected through bolt 8.
Said flexible wearing piece 5 is a wire bundle, and said wire bundle is fixedly connected with gusset piece 1 through melting welding or spot welding mode, and said wire bundle is fixed on the elastically supported plate 6 through welding manner.
The junction of said wire bundle and gusset piece 1 forms weld layer 7, and said weld layer 7 is between front plate 3, elastically supported plate 6.
Present embodiment is owing to be provided with elastically supported plate, and in actual production, shape and size through preset elastically supported plate are easy to regulate its deformation nature, also promptly can fully guarantee the deformation nature of flexible wearing piece, thereby prolong whole service life; In addition, present embodiment is simple in structure comparatively reasonable, under the supporting role of elastically supported plate, make flexible wearing layer can be all the time appropriateness closely contact with fanning strip in the air preheater, accomplish that the zero clearance seals.
Fig. 2 has shown a kind of application mode of present embodiment; Each fixing described sealing device of present embodiment in the rotating cylinder beam front and back end of rotary regenerative air preheater; Form dual-seal,, lower pressure reduction greatly because the two seals device forms a little labyrinth simultaneously; Have and effectively to stop medium to leak outside, can prevent that again the medium of exterior ambient environment from getting into the interior leakage of sealed chamber.Leakage rate be merely general expression sealing the design leakage rate 1/5～1/20, can be reduced to 0.5～2%.Advantage such as good sealing effect and long service life.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection domain of the utility model.
Claims (3)
1. sealing device that is used for the labyrinth type air preheater comprises gusset piece (1), is fixedly installed on the flexible wearing piece (5) on gusset piece (1) top and is arranged on the front plate (3) and the rear plate (4) of gusset piece (1) top two side ends; Gusset piece (1) is provided with installing hole (2); It is characterized in that: also be provided with elastically supported plate (6) between said rear plate (4) and the gusset piece (1), said front plate (3), rear plate (4), elastically supported plate (6) and gusset piece (1) are fastenedly connected through bolt (8).
2. the sealing device that is used for the labyrinth type air preheater according to claim 1; It is characterized in that: said flexible wearing piece (5) is wire bundle; Said wire bundle is fixedly connected with gusset piece (1) through melting welding or spot welding mode, and said wire bundle is fixed on the elastically supported plate (6) through welding manner.
3. the sealing device that is used for the labyrinth type air preheater according to claim 2 is characterized in that: the junction of said wire bundle and gusset piece (1) forms weld layer (7), and said weld layer (7) is positioned between front plate (3), the elastically supported plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204030065U CN202267082U (en) | 2011-04-18 | 2011-10-09 | Sealing device for labyrinth type air preheater |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113374.6 | 2011-04-18 | ||
| CN201120113374 | 2011-04-18 | ||
| CN2011204030065U CN202267082U (en) | 2011-04-18 | 2011-10-09 | Sealing device for labyrinth type air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267082U true CN202267082U (en) | 2012-06-06 |
Family
ID=46157877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204030065U Expired - Fee Related CN202267082U (en) | 2011-04-18 | 2011-10-09 | Sealing device for labyrinth type air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267082U (en) |
-
2011
- 2011-10-09 CN CN2011204030065U patent/CN202267082U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20121009 |