CN202560625U - Gas fan sealing device - Google Patents
Gas fan sealing device Download PDFInfo
- Publication number
- CN202560625U CN202560625U CN2012201805428U CN201220180542U CN202560625U CN 202560625 U CN202560625 U CN 202560625U CN 2012201805428 U CN2012201805428 U CN 2012201805428U CN 201220180542 U CN201220180542 U CN 201220180542U CN 202560625 U CN202560625 U CN 202560625U
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- CN
- China
- Prior art keywords
- sealing
- fan
- gas
- blower fan
- stuffing box
- 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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Abstract
The utility model relates to a sealing device, and in particular relates to a gas fan sealing device. The gas fan sealing device comprises a sealing housing, a gas backflow pipeline and a filler cover, wherein the sealing housing is sleeved to a main shaft of the fan; an exhaust vent is formed on the sealing housing; the exhaust vent is connected to one end of the gas backflow pipeline; the other end of the gas backflow pipeline is mounted at an air inlet of the fan; a sealing sleeve is connected to the inner wall of the sealing housing; a plurality of through holes are formed on the sealing sleeve corresponding to the exhaust port; and one end face of the sealing housing is fastened with the housing of the fan, while the other end face of the sealing housing is fixedly connected with the filler cover. The gas fan sealing device realizes two-stage stoppage of harmful gases by using the sealing sleeve and an oil disc, thereby ensuring zero leakage of the harmful gases, and is good in sealing effect; besides, the device is capable of effectively recovering harmful gases leaking outwards in the axial direction of the main shaft of the fan, thus the sealing device is high in safety performance, and simple in structure and good in practicability.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of gas fan seal arrangement.
Background technique
Gas fan is when running well; The blower fan main shaft axial leakage of a small amount of harmful gas from gas fan usually arranged, can cause gaseous contamination on the one hand, might cause gas leakage on the other hand; Personal safety is threatened; But also waste a part of coal gas, at present, the gas leakage problem of gas fan still is difficult to solve.
Summary of the invention
According to above deficiency of the prior art, the technical problem that the utility model will solve is: provide a kind of simple in structure, be difficult for causing gas leakage, good airproof performance and safe gas fan seal arrangement.
The utility model solves the technological scheme that its technical problem adopted: described gas fan seal arrangement; It is characterized in that: comprise can, backflow air pipe and follower, can is sleeved on the main shaft of blower fan, has exhaust port on the can; Exhaust port is connected with backflow air pipe one end; The other end of backflow air pipe is installed in the intake grill place of blower fan, connects stuffing box gland on the inwall of can, and corresponding exhaust port is provided with a plurality of vents on stuffing box gland; The casing of can one end face and blower fan is fastenedly connected, and is fixedly connected follower on the other end.
Described stuffing box gland is an aluminium labyrinth seal cover.
The food tray root of secondary seal effect has been set between described stuffing box gland and the follower, and the food tray root is wrapped on the main shaft of blower fan and is pressed between stuffing box gland and the follower.Food tray root through compressing is intercepted harmful gas once more, guarantees the harmful gas zero leakage.
Working principle and process:
Harmful gas is in the casing of blower fan, and owing to running up of blower fan, flow and pressure that blower fan produces are bigger; Some harmful gas can be along the main shaft of blower fan axially to external leakage; In main shaft and casing joint this seal arrangement is installed, is made vertically in the stuffing box gland that harmful gas gets into can is connected of external leakage, a plurality of vents are set on the stuffing box gland; Harmful gas gets into the backflow air pipe through the exhaust port that is provided with on vent and the can; The other end of backflow air pipe is installed in the air inlet place, and the suction that is produced by the blower fan running sucks blower fan with the harmful gas in the backflow air pipe by intake grill, for the prevention harmful gas reclaims not thorough; Rear end at seal arrangement is intercepted by the food tray root that compresses once more, guarantees the harmful gas zero leakage.
The beneficial effect that the utility model had is: a kind of gas fan seal arrangement is provided, carries out the two-stage of harmful gas through stuffing box gland and food tray root and intercept, guaranteed the zero leakage of harmful gas; Good sealing effect; In addition, can also blower fan main shaft axially effectively be reclaimed to the harmful gas of external leakage, Safety performance is high; And it is simple in structure, practical.
Description of drawings
Fig. 1 is the application state schematic representation of the utility model;
Fig. 2 is the partial enlarged drawing at I position among Fig. 1.
Among the figure: 1, intake grill; 2, backflow air pipe; 3, casing; 4, main shaft; 5, can; 6, exhaust port; 7, vent; 8, stuffing box gland; 9, food tray root; 10, follower
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
Shown in Fig. 1～2; The gas fan seal arrangement comprises can 5, backflow air pipe 2 and follower 10, and can 5 is sleeved on the main shaft 4 of blower fan, has exhaust port 6 on the can 5; Exhaust port 6 is connected with backflow air pipe 2 one ends; The other end of backflow air pipe 2 is installed in intake grill 1 place of blower fan, connects stuffing box gland 8 on the inwall of can 5, and corresponding exhaust port 6 is provided with a plurality of vents 6 on stuffing box gland 8; The casing 3 of can 5 one end faces and blower fan is fastenedly connected, and is fixedly connected follower 10 on the other end.
Described stuffing box gland is an aluminium labyrinth seal cover.
The food tray root 9 of secondary seal effect has been set between described stuffing box gland 8 and the follower 10, and food tray root 9 is wrapped on the main shaft 4 of blower fan and is pressed between stuffing box gland 8 and the follower 10.9 pairs of harmful gases of food tray root through compressing are intercepted once more, guarantee the harmful gas zero leakage.
Working principle and process:
Harmful gas is in the casing 3 of blower fan, and owing to running up of blower fan, flow and pressure that blower fan produces are bigger; Some harmful gas can be along the main shaft 4 of blower fan axially to external leakage; In main shaft 4 and casing 3 joints this seal arrangement is installed, is made vertically in the stuffing box gland 8 that harmful gas gets into can 5 is connected of external leakage, a plurality of vents 7 are set on the stuffing box gland 8; Harmful gas gets into backflow air pipe 2 through the exhaust port 6 that is provided with on vent 7 and the can 5; The other end of backflow air pipe 2 is installed in air inlet 1 place, and the suction that is produced by the blower fan running sucks blower fan with the harmful gas in the backflow air pipe 2 by intake grill 1, for the prevention harmful gas reclaims not thorough; Rear end at seal arrangement is intercepted by the food tray root 9 that compresses once more, guarantees the harmful gas zero leakage.
Claims (3)
1. gas fan seal arrangement; It is characterized in that comprising can, backflow air pipe and follower, can is sleeved on the main shaft of blower fan, has exhaust port on the can; Exhaust port is connected with backflow air pipe one end; The other end of backflow air pipe is installed in the intake grill place of blower fan, connects stuffing box gland on the inwall of can, and corresponding exhaust port is provided with a plurality of vents on stuffing box gland; The casing of can one end face and blower fan is fastenedly connected, and is fixedly connected follower on the other end.
2. gas fan seal arrangement according to claim 1 is characterized in that: described stuffing box gland is an aluminium labyrinth seal cover.
3. gas fan seal arrangement according to claim 1 and 2 is characterized in that: the food tray root of secondary seal effect has been set between described stuffing box gland and the follower, and the food tray root is wrapped on the main shaft of blower fan and is pressed between stuffing box gland and the follower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201805428U CN202560625U (en) | 2012-04-25 | 2012-04-25 | Gas fan sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201805428U CN202560625U (en) | 2012-04-25 | 2012-04-25 | Gas fan sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560625U true CN202560625U (en) | 2012-11-28 |
Family
ID=47210286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201805428U Expired - Fee Related CN202560625U (en) | 2012-04-25 | 2012-04-25 | Gas fan sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560625U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505799A (en) * | 2018-12-19 | 2019-03-22 | 安徽节源环保科技有限公司 | A kind of novel fan air port sealing device |
| CN110578698A (en) * | 2019-10-18 | 2019-12-17 | 云汇环保科技南通有限公司 | Negative pressure sealing device for fan |
| CN111720358A (en) * | 2020-07-16 | 2020-09-29 | 北京精瑞科迈净水技术有限公司 | Sealing structure of pump cover |
| CN112855604A (en) * | 2021-01-12 | 2021-05-28 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
| CN113323910A (en) * | 2021-06-17 | 2021-08-31 | 光大环境科技（中国）有限公司 | Shaft seal system of exhaust-heat boiler flue gas circulation fan |
-
2012
- 2012-04-25 CN CN2012201805428U patent/CN202560625U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505799A (en) * | 2018-12-19 | 2019-03-22 | 安徽节源环保科技有限公司 | A kind of novel fan air port sealing device |
| CN109505799B (en) * | 2018-12-19 | 2023-11-03 | 安徽节源环保科技有限公司 | Novel fan wind gap is sealed device |
| CN110578698A (en) * | 2019-10-18 | 2019-12-17 | 云汇环保科技南通有限公司 | Negative pressure sealing device for fan |
| CN111720358A (en) * | 2020-07-16 | 2020-09-29 | 北京精瑞科迈净水技术有限公司 | Sealing structure of pump cover |
| CN112855604A (en) * | 2021-01-12 | 2021-05-28 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
| CN112855604B (en) * | 2021-01-12 | 2022-10-21 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
| CN113323910A (en) * | 2021-06-17 | 2021-08-31 | 光大环境科技（中国）有限公司 | Shaft seal system of exhaust-heat boiler flue gas circulation fan |
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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: 20121128 Termination date: 20130425 |