CN201851393U - Shaft sealing structure of centrifugal fan - Google Patents
Shaft sealing structure of centrifugal fan Download PDFInfo
- Publication number
- CN201851393U CN201851393U CN2010206141091U CN201020614109U CN201851393U CN 201851393 U CN201851393 U CN 201851393U CN 2010206141091 U CN2010206141091 U CN 2010206141091U CN 201020614109 U CN201020614109 U CN 201020614109U CN 201851393 U CN201851393 U CN 201851393U
- Authority
- CN
- China
- Prior art keywords
- sealing structure
- polytetrafluoroethylene ring
- platen
- main shaft
- centrifugal fan
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 15
- -1 polytetrafluoroethylene ring Polymers 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a shaft sealing structure of a centrifugal fan. The shaft sealing structure comprises a housing and a main shaft penetrating through the housing, wherein a master plate and a pressure plate are arranged inside the housing, a graphite packing and a polytetrafluoroethylene ring are arranged between the pressure plate and the main shaft, air guide holes are formed on the polytetrafluoroethylene ring, an air guide pipe is arranged on the pressure plate and is communicated with the air guide holes of the polytetrafluoroethylene ring inside the pressure plate. Compared with the prior art, the utility model adopts the sealing mode based on the combination of the graphite packing and the polytetrafluoroethylene ring, and the high-pressure air is added, so that the leakage can be effectively prevented, and the shaft sealing structure of the centrifugal fan can be cooled.
Description
Technical field
The utility model relates to the centrifugal blower technical field, specifically is a kind of axle sealing structure that is applied to centrifugal blower.
Background technique
Main shaft has a gap with enclosure wall after by casing, and general employing filler is wiped knot with the axle buffing and touched sealing, and its sealing shortcoming is that working life short, long-term friction makes filler and reel still have micro-gap, and generation high temperature, under the higher environment of interior pressure, poorly sealed.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and provides a kind of long service life to seal sternly and have the blower fan axle sealing structure of refrigerating function.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of centrifugal blower axle sealing structure, the main shaft that comprises casing and pass described casing, in described casing, be provided with master and platen, between described platen and main shaft, be provided with graphite packing and polytetrafluoroethylene ring, offer gas port on described polytetrafluoroethylene ring, described platen is provided with air pipe, and this air pipe is communicated with the gas port of the polytetrafluoroethylene ring of platen inside.
Compared with prior art, the sealing means that the utility model adopts graphite packing and polytetrafluoroethylene ring to combine, and high-pressure air in addition effectively prevent to leak, but and cooling blower shaft seal structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein 1, platen, 2, master, 3, casing, 4, main shaft, 5, air pipe, 6, the graphite packing, 7, the polytetrafluoroethylene ring.
Embodiment
A kind of centrifugal blower axle sealing structure, the main shaft that comprises casing and pass described casing, in described casing, be provided with master and platen, between described platen and main shaft, be provided with graphite packing and polytetrafluoroethylene ring, on described polytetrafluoroethylene ring, offer gas port, described platen is provided with air pipe, and this air pipe is communicated with the gas port of the polytetrafluoroethylene ring of platen inside.
The utility model sealing configuration is by master, and platen is formed, and its filler is four layers of graphite packing, the centre adds a polytetrafluoroethylene ring, is evenly equipped with the gas port hole respectively on its polytetrafluoroethylene ring, and external diameter and internal diameter are processed into the matrix air drain, be beneficial to and form the inner and outer air pressure district, thereby effectively stop gas leakage.
Claims (1)
1. centrifugal blower axle sealing structure, the main shaft that comprises casing and pass described casing, in described casing, be provided with master and platen, between described platen and main shaft, be provided with graphite packing and polytetrafluoroethylene ring, on described polytetrafluoroethylene ring, offer gas port, described platen is provided with air pipe, and this air pipe is communicated with the gas port of the polytetrafluoroethylene ring of platen inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141091U CN201851393U (en) | 2010-11-19 | 2010-11-19 | Shaft sealing structure of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141091U CN201851393U (en) | 2010-11-19 | 2010-11-19 | Shaft sealing structure of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851393U true CN201851393U (en) | 2011-06-01 |
Family
ID=44093786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206141091U Expired - Lifetime CN201851393U (en) | 2010-11-19 | 2010-11-19 | Shaft sealing structure of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851393U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072192A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Centrifugal fan shaft seal structure |
| CN102562646A (en) * | 2012-02-24 | 2012-07-11 | 杭州余杭特种风机有限公司 | Hot-gas high-pressure centrifugal blower and sealing method thereof |
| CN102619776A (en) * | 2012-04-01 | 2012-08-01 | 张家港市东丰特种风机有限公司 | Air sealing device for main shaft in fan |
| CN105065322A (en) * | 2015-07-17 | 2015-11-18 | 上海通用风机股份有限公司 | Sealing device for draught fan main shaft |
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
| CN115143764A (en) * | 2022-05-27 | 2022-10-04 | 天华化工机械及自动化研究设计院有限公司 | Feeding sealing structure and rotary dryer |
-
2010
- 2010-11-19 CN CN2010206141091U patent/CN201851393U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072192A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Centrifugal fan shaft seal structure |
| CN102562646A (en) * | 2012-02-24 | 2012-07-11 | 杭州余杭特种风机有限公司 | Hot-gas high-pressure centrifugal blower and sealing method thereof |
| CN102619776A (en) * | 2012-04-01 | 2012-08-01 | 张家港市东丰特种风机有限公司 | Air sealing device for main shaft in fan |
| CN105065322A (en) * | 2015-07-17 | 2015-11-18 | 上海通用风机股份有限公司 | Sealing device for draught fan main shaft |
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
| CN109973657B (en) * | 2018-01-03 | 2024-05-31 | 双龙集团有限公司 | Lip type mechanical sealing device |
| CN115143764A (en) * | 2022-05-27 | 2022-10-04 | 天华化工机械及自动化研究设计院有限公司 | Feeding sealing structure and rotary dryer |
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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: 20110601 |
|
| CX01 | Expiry of patent term |