CN206787373U - A kind of air preheater spring leaf flexible seal device - Google Patents
A kind of air preheater spring leaf flexible seal device Download PDFInfo
- Publication number
- CN206787373U CN206787373U CN201720653854.9U CN201720653854U CN206787373U CN 206787373 U CN206787373 U CN 206787373U CN 201720653854 U CN201720653854 U CN 201720653854U CN 206787373 U CN206787373 U CN 206787373U
- Authority
- CN
- China
- Prior art keywords
- spring leaf
- air preheater
- seal device
- sealing baffle
- flexible seal
- 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.)
- Expired - Fee Related
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
It the utility model is related to a kind of air preheater spring leaf flexible seal device, including sealing baffle and fanning strip, backing plate is connected with the sealing baffle, spring leaf is provided between the sealing baffle and backing plate, the fanning strip is provided with rebound, and the rebound section is triangle.The utility model is simple in construction, and installation, maintenance is convenient.Meanwhile the setting of rebound avoids spring leaf and directly contacted with fanning strip, reduces the abrasion of spring leaf.
Description
Technical field
The utility model belongs to Air Preheater Technology field, and in particular to a kind of air preheater spring leaf flexible sealing dress
Put.
Background technology
Air preheater is exactly flue gas in boiler back end ductwork by the fin of inside by the air before entering boiler
The heating surface of certain temperature is preheating to, for improving the heat exchange performance of boiler, reduces energy expenditure.
Air preheater is commonly abbreviated as air preheater, is used for coal-fired power station boiler, can be divided into box type, swinging two
Kind.Wherein, swinging is divided into two kinds of fan housing swinging and heating surface swinging again.Station boiler is compared with frequently with heating surface swinging
Empty preheater.Rotary regenerative air preheater is turned over and heat is transmitted into one, two after certain angle using high-temperature flue gas heating sheet metal
Secondary wind, so that the air themperature into burner hearth rises.
Under hot running status, each part of air preheater can expand rotary regenerative air heater because heated, turn
Son can become mushroom, and the gap between rotor and fanning strip, arc can change, and most of gap can all diminish, hot junction footpath
Gap can become big between Xiang Yuesan/bis- section fan plate and diaphragm seal.Under hot running status, if gap is excessive, it will cause
Air leak rate of air preheater increases, if too small, it would be possible to cause air preheater stuck.The air leak rate of air curtain of air preheater is shadow
An important factor for ringing boiler operating efficiency, so the sealing between air and flue gas, it appears particularly important.Rotary regenerative air heater
Sealing means mainly have：Adjustable sealing, fixed sealing, contact seal etc..Flexible contact type seals, and will not form sealing
Gap, the advantages of good sealing effect, but existing flexible contact type seals, complicated, installation, maintenance inconvenience, it is impossible to meet
Requirement of actual working condition, while device rapid wear.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of air preheater spring leaf flexible sealing dress
Put.
In order to achieve the above object, the utility model employs following technical proposal：
A kind of air preheater spring leaf flexible seal device, including sealing baffle and fanning strip, connect on the sealing baffle
There is backing plate, spring leaf is provided between the sealing baffle and backing plate, the fanning strip is provided with rebound, and the rebound section is
Triangle.
Preferably, the sealing baffle is bolted or riveted with backing plate.
Further preferably, the sealing baffle passes through one or more bolt connections with backing plate.
Preferably, the spring leaf is higher by fanning strip baseplane 1-10mm.
Preferably, the spring leaf is provided with transition face.
Preferably, the fanning strip with rebound by being weldingly connected.
The utility model has advantages below：
The utility model is simple in construction, and installation, maintenance is convenient.Meanwhile the setting of rebound avoids spring leaf and sector
Plate directly contacts, and reduces the abrasion of spring leaf.Spring leaf is made of high performance aeronautical material, not only elastic good, and
It is again wear-resisting, it will not also be broken off.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Reference：1 is spring leaf, and 2 be sealing baffle, and 3 be backing plate, and 4 be bolt connection, and 5 be fanning strip, and 6 be transition
Plate.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment 1：A kind of air preheater spring leaf flexible seal device as shown in Figure 1, including sealing baffle 2 and fanning strip
5, backing plate 3 is connected with the sealing baffle 2, and spring leaf 1, the fanning strip 5 are provided between the sealing baffle 2 and backing plate 3
Provided with rebound 6, the section of rebound 6 is triangle.
In the air preheater course of work, when spring leaf 1 contacts with rebound 6, spring leaf 1 is by the downward effect of rebound 6
Power, elastic deformation occurs for spring leaf 1, when spring leaf 1 contacts with fanning strip 6, forms sealing, and rebound can reduce spring
Pad wear.
Embodiment 2：A kind of air preheater spring leaf flexible seal device as shown in Figure 1, including sealing baffle 2 and fanning strip
5, backing plate 3 is connected with the sealing baffle 2, and spring leaf 1, the sealing baffle are provided between the sealing baffle 2 and backing plate 3
2 are connected with backing plate 3 by multiple bolts, to increase stability and intensity；The fanning strip 5 is welded with rebound 6, the transition
The section of plate 6 is triangle；The spring leaf 1 is higher by the baseplane 1mm of fanning strip 5.Spring leaf 6 uses high performance aeronautical material system
Into, it is not only elastic good and again wear-resisting, it will not also be broken off.
Embodiment 3：A kind of air preheater spring leaf flexible seal device as shown in Figure 1, including sealing baffle 2 and fanning strip
5, backing plate 3 is connected with the sealing baffle 2, and spring leaf 1, the sealing baffle are provided between the sealing baffle 2 and backing plate 3
2 are connected with backing plate 3 by riveting, and the fanning strip 5 is welded with rebound 6, and the section of rebound 6 is triangle；The bullet
Reed 1 is provided with transition face, and the spring leaf 1 is higher by the baseplane 10mm of fanning strip 5.Spring leaf 6 uses high performance aeronautical material
It is made, it is not only elastic good and again wear-resisting, it will not also be broken off.
The utility model is not limited to foregoing embodiment.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
Close.
Claims (6)
1. a kind of air preheater spring leaf flexible seal device, including sealing baffle (2) and fanning strip (5), it is characterised in that：It is described
Backing plate (3) is connected with sealing baffle (2), spring leaf (1), the sector are provided between the sealing baffle (2) and backing plate (3)
Plate (5) is provided with rebound (6), and rebound (6) section is triangle.
A kind of 2. air preheater spring leaf flexible seal device according to claim 1, it is characterised in that：The sealing baffle
(2) (4) are bolted with backing plate (3) or are riveted.
A kind of 3. air preheater spring leaf flexible seal device according to claim 1 or 2, it is characterised in that：The sealing
Baffle plate (2) passes through one or more bolt connections (4) with backing plate (3).
A kind of 4. air preheater spring leaf flexible seal device according to claim 1, it is characterised in that：The spring leaf
(1) it is higher by fanning strip baseplane 1-10mm.
A kind of 5. air preheater spring leaf flexible seal device according to claim 1, it is characterised in that：The spring leaf
(1) it is provided with transition face.
A kind of 6. air preheater spring leaf flexible seal device according to claim 1, it is characterised in that：The fanning strip
(5) with rebound (6) by being weldingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653854.9U CN206787373U (en) | 2017-06-07 | 2017-06-07 | A kind of air preheater spring leaf flexible seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653854.9U CN206787373U (en) | 2017-06-07 | 2017-06-07 | A kind of air preheater spring leaf flexible seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206787373U true CN206787373U (en) | 2017-12-22 |
Family
ID=60715505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720653854.9U Expired - Fee Related CN206787373U (en) | 2017-06-07 | 2017-06-07 | A kind of air preheater spring leaf flexible seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206787373U (en) |
-
2017
- 2017-06-07 CN CN201720653854.9U patent/CN206787373U/en not_active Expired - Fee Related
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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 |
Address after: 610000, 25 B6, 1 times digital building, four section, Renmin South Road, Wuhou District, Sichuan, Chengdu Patentee after: Sichuan Dazhi Electric Power Co.,Ltd. Address before: 610000, 25 B6, 1 times digital building, four section, Renmin South Road, Wuhou District, Sichuan, Chengdu Patentee before: SICHUAN WISDOM ENGINEERING TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |