CN201100408Y - Multi-level cellular brush sealing device - Google Patents
Multi-level cellular brush sealing device Download PDFInfo
- Publication number
- CN201100408Y CN201100408Y CNU2007200448418U CN200720044841U CN201100408Y CN 201100408 Y CN201100408 Y CN 201100408Y CN U2007200448418 U CNU2007200448418 U CN U2007200448418U CN 200720044841 U CN200720044841 U CN 200720044841U CN 201100408 Y CN201100408 Y CN 201100408Y
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- China
- Prior art keywords
- sealing
- brush
- seal
- brush seal
- tooth
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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 - Lifetime
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a multi-level honeycomb brush sealing device, in particular to a composite sealing device (which is composed of a front plate, a brush bind and a back plate) which comprises a multi-level honeycomb belt welded on a sealing ring and a brush sealing body enchased in the middle of the sealing body, thereby fully exerting the advantage of three kinds of sealing. The brush sealing can cause the sealing clearance to be small to 0.02mm which is almost zero, the honeycomb belt can decrease the sealing clearance to 0.15mm, thereby having great vibration damping effect and excellent capability. The designed leakage quantity can be 1/10 to 1/20 of the designed leakage quantity of the maze sealing. The brush sealing body is a whole structure which is welded with the front board, the brush bind and the back plate, and the brush is not easy to fall off. The multi-level honeycomb brush sealing device has the advantages of simple structure, reasonable design, accurate manufactory, low combining cost, convenient installing, good sealing effect, long utilizing life and the like.
Description
Technical field
The utility model relates to a kind of seal arrangement with comb structure, and particularly a kind of composite seal device that the sealing of labyrinth seal and cellular band and bristle sealing are mutually combined and form belongs to the working medium leakage field that prevents.
Background technique
Be used for inter-stage sealing and shaft end seal on the favourable turn equipment such as steam turbine, compressor, turbine engine at present, generally use the mazy type labyrinth seal, its structure mainly seals teeth or steel sealing tooth or alumiseal tooth by 3～7 road copper and forms, most structures are high and low tooth cross structure, when medium passes through the sealing tooth, through the process of overexpansion, throttling, step-down,, reach sealing effect through multistage several gear pieces.But when design, in order to dwindle axial space, sealing progression is very few, and labyrinth seal can not be satisfied does not have the requirement of leakage fully; Simultaneously, because the gap that the permanent wearing and tearing that cause of rotor oscillation or Installation and Debugging cause increases, medium is leaked in a large number, cause device efficiency low, a large amount of energy consumptions wastes also have the medium of leakage to cause severe contamination even may cause peril such as blast.
Summary of the invention
The purpose of this utility model is to have deficiencys such as leakage rate is big in order to overcome above-mentioned labyrinth sealing, a kind of rational in infrastructure, good seal performance is provided, can reduces self-excited vibration and the little multistage honeycomb brush seal arrangement of leakage rate.
Multistage honeycomb brush seal arrangement of the present utility model, mainly be on the basis of mazy type labyrinth seal, cellular band sealing and brush sealed composite are formed, its structure comprises the low tooth of seal ring and long tooth and two ends, also comprise cellular band and brush seal, minister's tooth was embedded on the default groove in seal ring middle part during described brush seal replaced, and cellular band replaces the low tooth between the long tooth to be welded on the seal ring.
Described cellular band is at least 1 grade, and the brush seal is the 1-2 level.
Described brush seal comprises bristle row and header board and backboard, and bristle row is welded between header board and the backboard.
The seal clearance of described cellular band can be reduced to 0.15mm～0.5mm, and the seal clearance of brush seal can be reduced between 0.02mm～0.08mm.
Multistage honeycomb brush seal arrangement of the present utility model, because on the basis of mazy type labyrinth seal, have additional cellular band sealing and brush sealing, given full play to the advantage of three kinds of sealings, the brush sealing can make seal clearance little of almost nil 0.02mm, cellular band can make seal clearance be reduced to 0.15mm, has strong effectiveness in vibration suppression and excellent sealability.On equipment uses, can reach desirable sealing effect, can effectively stop medium (medium that must seal) to leak outside, can prevent that again the medium of exterior ambient environment from entering sealed chamber's (interior leakage).Leakage rate only designs 1/10～1/20 of leakage rate for labyrinth sealed.Because of the brush seal is the integral solder structure, service time is long, the bristle difficult drop-off again.Have simple in structurely, reasonable in design, make precisely, overall cost is low, and is easy for installation, good sealing effect, advantages such as long service life.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of structural representations of the brush seal in the accompanying drawing 1.
Embodiment
Accompanying drawing is non-limiting to disclose a specific embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
Referring to accompanying drawing, 1 among the figure is seal ring, the 2nd, and header board, the 3rd, cellular band, the 4th, backboard, the 5th, bristle row, the 6th, rotating shaft, the 7th, long tooth, the 8th, low tooth.
Multistage honeycomb brush seal arrangement of the present utility model, its structure comprises the low tooth 8 of seal ring 1 and long tooth 7 and two ends, also comprise cellular band 3 and brush seal, minister's tooth was embedded on the default groove in seal ring middle part during described brush seal replaced, and cellular band 3 replaces the low tooth between the long tooth to be welded on the seal ring.
Described cellular band 3 is at least 1 grade, and the brush seal is the 1-2 level.
Described brush seal comprises bristle row 5 and header board 2 and backboard 4, and bristle row 5 is welded between header board 2 and the backboard 4.
The seal clearance of described cellular band 3 (and between rotating shaft 6) can be reduced to 0.15mm～0.5mm, and the seal clearance of brush seal (between bristle row 5 and the rotating shaft 6) can be reduced between 0.02mm～0.08mm.Concrete gap can be adjusted according to pressure medium, for the ease of will brush on the groove that seal is embedded in seal ring, can with brush seal header board 2 near leave appropriate gap.
Claims (4)
1, a kind of multistage honeycomb brush seal arrangement comprises the low tooth of seal ring and long tooth and two ends, it is characterized in that also comprising cellular band and brush seal, minister's tooth was embedded on the default groove in seal ring middle part during described brush seal replaced, and cellular band replaces the low tooth between the long tooth to be welded on the seal ring.
2, multistage honeycomb brush seal arrangement according to claim 1 is characterized in that described cellular band is at least 1 grade, and the brush seal is the 1-2 level.
3, multistage honeycomb brush seal arrangement according to claim 2 is characterized in that brushing seal and comprises bristle row and header board and backboard, and described bristle row is welded between header board and the backboard.
4, according to claim 1 or 2 or 3 described multistage honeycomb brush seal arrangements, it is characterized in that being that the seal clearance of cellular band is 0.15mm～0.5mm, the seal clearance of brush seal is between 0.02mm～0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200448418U CN201100408Y (en) | 2007-11-14 | 2007-11-14 | Multi-level cellular brush sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200448418U CN201100408Y (en) | 2007-11-14 | 2007-11-14 | Multi-level cellular brush sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100408Y true CN201100408Y (en) | 2008-08-13 |
Family
ID=39936943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200448418U Expired - Lifetime CN201100408Y (en) | 2007-11-14 | 2007-11-14 | Multi-level cellular brush sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100408Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225519A (en) * | 2013-04-24 | 2013-07-31 | 石伟伟 | Self-adjustment blade type vapor seal |
| CN109210202A (en) * | 2018-09-11 | 2019-01-15 | 西安交通大学 | A kind of ultrasonic wave honeycomb seal device and method |
| CN110454576A (en) * | 2018-05-07 | 2019-11-15 | 中国联合重型燃气轮机技术有限公司 | Seal assembly for rotary machine |
-
2007
- 2007-11-14 CN CNU2007200448418U patent/CN201100408Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225519A (en) * | 2013-04-24 | 2013-07-31 | 石伟伟 | Self-adjustment blade type vapor seal |
| CN110454576A (en) * | 2018-05-07 | 2019-11-15 | 中国联合重型燃气轮机技术有限公司 | Seal assembly for rotary machine |
| CN109210202A (en) * | 2018-09-11 | 2019-01-15 | 西安交通大学 | A kind of ultrasonic wave honeycomb seal device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU XINXINRUN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANJING XINRUN TECHNOLOGY CO., LTD. Effective date: 20100524 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211106 NO.7-1-102, YIRANJU, YIHE WEST PARK, JIANGNING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, NANJING CITY, JIANGSU PROVINCE TO: 211103 NO.102 TIANNING ROAD, SHANGFANG SCIENCE PARK, JIANGNING DISTRICT, NANJING CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100524 Address after: 211103 No. 102 Tianning Road, Nanjing Science Park, Jiangning District, Jiangsu, China Patentee after: Jiangsu Sunray Technology Co., Ltd. Address before: 211106 Jiangsu city of Nanjing province Jiangning economic and Technological Development Zone and natural 7-1-102 Yi Xiyuan Patentee before: Nanjing Xinrun Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080813 |