CN201561126U - Barrel labyrinth type airtight seal structure - Google Patents
Barrel labyrinth type airtight seal structure Download PDFInfo
- Publication number
- CN201561126U CN201561126U CN2009202720177U CN200920272017U CN201561126U CN 201561126 U CN201561126 U CN 201561126U CN 2009202720177 U CN2009202720177 U CN 2009202720177U CN 200920272017 U CN200920272017 U CN 200920272017U CN 201561126 U CN201561126 U CN 201561126U
- Authority
- CN
- China
- Prior art keywords
- airtight seal
- air
- seal structure
- circular ring
- barrel
- 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 - Lifetime
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Abstract
A barrel labyrinth airtight seal structure is characterized by comprising an airtight seal cover and seal copper rings. The airtight seal cover is formed by a circular ring consisting of two semicircular portions, flanges are disposed at one end of the circular ring, a plurality of annular grooves are arranged on the inner circumference of the circular ring, corresponding radial fixing lugs are disposed at two ends of each semicircular portion, through holes are evenly disposed on the flanges and the fixing lugs, a seal copper ring is respectively arranged inside each annular groove, and a radial pipeline port is arranged on the circular ring. The barrel labyrinth type airtight seal structure has the advantages that the labyrinth type airtight seal structure can be utilized to lead high-pressure air from a primary cool air of an air pre-heater to offset inner pressure of the air pre-heater, thereby greatly reducing air leakage of the air pre-heater, increasing efficiency of boilers and saving energy sources.
Description
Technical field
The utility model relates to a kind of mazy type aeroseal structure, is mainly used in the sealing of air preheater rotor central tube end axle (tube).
Background technique
The rotor center tubular device is the core of rotary regenerative air preheater solid of rotation, it is around the characteristic of center rotation just, determined it relative motion to be arranged, simultaneously because the pressure reduction of air preheater inside and outside causes gas to be revealed outward from air seal with the fixed body that is air preheater.
The air preheater guide bearing apparatus adopts the aeroseal structure at present, also is to reduce leaking out of air preheater by inner air and outer air pressure reduction, reaches the purpose of energy saving.
Summary of the invention
The purpose of this utility model just provides a kind of mazy type aeroseal structure, to solve the problem that gas that prior art exists is revealed outward from air seal.
The technical solution of the utility model is: comprise aeroseal cover and sealing copper ring, this aeroseal cover is made up of the annulus that two semi-circular portions constitute, end at this annulus is provided with flange, inner peripheral surface at this annulus is provided with several annular grooves, be provided with corresponding radially fixing ear at the two ends of this semi-circular portions, at described flange with fixedly be equipped with through hole on the ear; In each described annular groove, respectively be provided with a sealing copper ring; On described annulus, be provided with a radial passage interface.
The utility model has the advantages that: adopt the mazy type air seal, introduce to press in high-pressure air and the air preheater offseting from the cold wind of air preheater, greatly reduce leaking out of air preheater, improved efficiency of boiler, also saved the energy.
Description of drawings
Fig. 1 is the structural representation of upper-end surface of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of the aeroseal cover among Fig. 2;
Fig. 4 is that the utility model is installed in the schematic representation on the rotor center tube of air preheater.
Embodiment
Referring to Fig. 1～Fig. 3, the utility model comprises aeroseal cover 2 and sealing copper ring 3, this aeroseal cover 2 is made up of the annulus that two semi-circular portions constitute, end at this annulus is provided with flange 21, inner peripheral surface at this annulus is provided with several annular grooves 23, be provided with corresponding radially fixing ear 22 at the two ends of this semi-circular portions, at described flange 21 with fixedly be respectively equipped with through hole 24 and 25 on the ear 22; In each described annular groove 23, respectively be provided with a sealing copper ring 3; On described annulus, be provided with a radial passage interface 4, be used for being connected by the high pressure airline that wind of air pipe line 5 and cold junction attracts.
Referring to Fig. 4, the utility model will seal the outer circumferential face connection that copper ring 3 is welded on air preheater rotor central tube 1 cold junction rotary cylinder (axle) when using, and will cooperate installation with annular groove 23; With bolt 6 flange 21 is connected with the static reel 8 of air preheater rotor central tube 1; And it is the fixedly ear 22 relative connections of two semi-circular portions are fastening with bolt 7.When work, in aeroseal cover 2, feed high-pressure air, offset, greatly reduce the inleakage of air preheater, saved the energy with pressure in the air preheater by the utility model radial passage interface 4.
Claims (1)
1. tube mazy type aeroseal structure, it is characterized in that: comprise aeroseal cover and sealing copper ring, this aeroseal cover is made up of the annulus that two semi-circular portions constitute, end at this annulus is provided with flange, inner peripheral surface at this annulus is provided with several annular grooves, be provided with corresponding radially fixing ear at the two ends of this semi-circular portions, at described flange with fixedly be equipped with through hole on the ear; In each described annular groove, respectively be provided with a sealing copper ring; On described annulus, be provided with a radial passage interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202720177U CN201561126U (en) | 2009-11-23 | 2009-11-23 | Barrel labyrinth type airtight seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202720177U CN201561126U (en) | 2009-11-23 | 2009-11-23 | Barrel labyrinth type airtight seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561126U true CN201561126U (en) | 2010-08-25 |
Family
ID=42626270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202720177U Expired - Lifetime CN201561126U (en) | 2009-11-23 | 2009-11-23 | Barrel labyrinth type airtight seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332316A (en) * | 2019-07-09 | 2019-10-15 | 中国航发哈尔滨东安发动机有限公司 | A kind of labyrinth seal structure |
-
2009
- 2009-11-23 CN CN2009202720177U patent/CN201561126U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332316A (en) * | 2019-07-09 | 2019-10-15 | 中国航发哈尔滨东安发动机有限公司 | A kind of labyrinth seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |
|
| CX01 | Expiry of patent term |