CN203892561U - Shaft end sealing device for draught fan conveying high-temperature gas containing CO - Google Patents
Shaft end sealing device for draught fan conveying high-temperature gas containing CO Download PDFInfo
- Publication number
- CN203892561U CN203892561U CN201420284178.9U CN201420284178U CN203892561U CN 203892561 U CN203892561 U CN 203892561U CN 201420284178 U CN201420284178 U CN 201420284178U CN 203892561 U CN203892561 U CN 203892561U
- Authority
- CN
- China
- Prior art keywords
- gear piece
- draught fan
- temperature gas
- sealing
- blower 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a shaft end sealing device for a draught fan conveying high-temperature gas containing CO. The shaft end sealing device for the draught fan conveying the high-temperature gas containing the CO comprises a draught fan shell, a draught fan main shaft and a sealing shell which is mounted on the draught fan main shaft and fixed to the draught fan shell, and is characterized in that labyrinth seal tooth pieces and seal tooth piece spacer rings matched with the labyrinth seal tooth pieces are mounted between the sealing shell and the draught fan main shaft in a spaced mode, the inner diameter of the seal tooth piece spacer rings is larger than that of the labyrinth seal tooth pieces, annular high-pressure inflation cavity rings are arranged on the seal tooth piece spacer rings at the middle position in the sealing shell, a sealing ring gland is fixedly mounted on the outer side of the sealing shell through bolts, radial holes are formed in the positions, corresponding to the annular high-pressure inflation cavity rings, of the sealing shell, nitrogen inflation pipes are arranged in the radial holes, and nitrogen pressure gauges are arranged on the nitrogen inflation pipes. The shaft end sealing device for the draught fan conveying the high-temperature gas containing the CO has the advantages of being good in sealing performance, high in safety and the like.
Description
Technical field
The utility model relates to a kind of seal arrangement, is specifically related to a kind of conveying containing CO high-temperature gas blower fan axle head seal arrangement.
Background technique
Along with the development of blower fan technology, its Applicable scope is by original conveying innocuous gas or regulate as indoor and outdoor air, has expanded the media poisonous to human body such as toxic gases such as carrying coal gas, hexane gas, hydrogen chloride gas, or even radioactive air to.This just requires the sealability of blower fan very good, otherwise gas leakage causes environmental pollution, is detrimental to health.Gas fan is when running well, usually there is a small amount of harmful gas from the blower fan main shaft axial leakage of gas fan, can cause gaseous contamination on the one hand, likely cause on the other hand gas leakage, personal safety is threatened, but also waste a part of coal gas, at present, the gas leakage problem of gas fan is still difficult to solve.
Model utility content
The shortcoming existing in order to solve prior art, the utility model provides the desirable and safe a kind of conveying of sealing effect containing CO high-temperature gas blower fan axle head seal arrangement.
The technical solution of the utility model is:
A kind of conveying is containing CO high-temperature gas blower fan axle head seal arrangement, comprise Blower Housing, blower fan main shaft, be arranged on blower fan main shaft and be fixed on the seal casinghousing on Blower Housing, it is characterized in that: between described seal casinghousing and blower fan main shaft, be provided with the labyrinth seal gear piece of installing at interval and the sealing gear piece spacer ring matching with it, the internal diameter of described sealing gear piece spacer ring is greater than the internal diameter of labyrinth seal gear piece, in described seal casinghousing, the sealing gear piece spacer ring in neutral position is provided with annular high-pressure aerated chamber ring, the outside of described seal casinghousing is bolted seal ring gland is installed, the corresponding part of described seal casinghousing and annular high-pressure aerated chamber ring is provided with radial hole, in radial hole, be provided with inflated with nitrogen pipe, described inflated with nitrogen pipe is provided with nitrogen pressure table.
Further, in described seal casinghousing, the sealing gear piece of annular high-pressure aerated chamber ring front end is 6, and the sealing gear piece of rear end is 5.
Further, described sealing gear piece is red copper sealing gear piece.
The utlity model has following advantage:
1, high pressure nitrogen enters in the ring of annular high-pressure aerated chamber by gas tube, forms high pressure nitrogen sealing air ring, and in seal, the gear piece of outer end stops the leakage of high pressure nitrogen sealing air ring;
2, in Blower Housing containing CO high-temperature gas by 6 roads sealings gear pieces of seal front end, pressure reduces gradually greatly, thereby disconnected by the high pressure nitrogen sealing air-flow loop resistance in the ring of high-pressure aerated chamber, to guarantee that the gas seal in blower fan do not leak;
3, red copper seals gear piece and is coupling to touch and can not produce spark, plays explosion-proof, and high pressure nitrogen not only seals but also explosion-proof;
4, the red copper gear piece in this seal and spacer ring adopt building blocks combined type, assemble simple and conveniently, and use and in servicely without wearing and tearing, monitors the pressure of nitrogen by pressure gauge simultaneously, thereby greatly improved the reliability and safety sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of conveying of the present utility model is containing CO high-temperature gas blower fan axle head seal arrangement, comprise Blower Housing 1, blower fan main shaft 4, be arranged on blower fan main shaft 4 and be fixed on the seal casinghousing 9 on Blower Housing 1, it is characterized in that: between described seal casinghousing 9 and blower fan main shaft 4, be provided with the labyrinth seal gear piece 8 of installing at interval and the sealing gear piece spacer ring 7 matching with it, the internal diameter of described sealing gear piece spacer ring 7 is greater than the internal diameter of labyrinth seal gear piece 8, the sealing gear piece spacer ring 7 in described seal casinghousing 9 interior neutral positions is provided with annular high-pressure aerated chamber ring 6, the outside of described seal casinghousing 9 is bolted seal ring gland 5 is installed, described seal casinghousing 9 is provided with radial hole with the corresponding part of annular high-pressure aerated chamber ring 6, in radial hole, be provided with inflated with nitrogen pipe 2, described inflated with nitrogen pipe 2 is provided with nitrogen pressure table 3.
Further, the sealing gear piece 8 that 6 front ends are encircled in the high-pressure aerated chamber of the interior annular of described seal casinghousing 9 is 6, and the sealing gear piece 8 of rear end is 5.
Further, described sealing gear piece 8 is red copper sealing gear piece.
Claims (3)
1. a conveying is containing CO high-temperature gas blower fan axle head seal arrangement, comprise Blower Housing, blower fan main shaft, be arranged on blower fan main shaft and be fixed on the seal casinghousing on Blower Housing, it is characterized in that: between described seal casinghousing and blower fan main shaft, be provided with the labyrinth seal gear piece of installing at interval and the sealing gear piece spacer ring matching with it, the internal diameter of described sealing gear piece spacer ring is greater than the internal diameter of labyrinth seal gear piece, in described seal casinghousing, the sealing gear piece spacer ring in neutral position is provided with annular high-pressure aerated chamber ring, the outside of described seal casinghousing is bolted seal ring gland is installed, the corresponding part of described seal casinghousing and annular high-pressure aerated chamber ring is provided with radial hole, in radial hole, be provided with inflated with nitrogen pipe, described inflated with nitrogen pipe is provided with nitrogen pressure table.
2. a kind of conveying according to claim 1, containing CO high-temperature gas blower fan axle head seal arrangement, is characterized in that: in described seal casinghousing, the sealing gear piece of annular high-pressure aerated chamber ring front end is 6, and the sealing gear piece of rear end is 5.
3. a kind of conveying according to claim 1, containing CO high-temperature gas blower fan axle head seal arrangement, is characterized in that: described sealing gear piece is red copper sealing gear piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284178.9U CN203892561U (en) | 2014-05-29 | 2014-05-29 | Shaft end sealing device for draught fan conveying high-temperature gas containing CO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284178.9U CN203892561U (en) | 2014-05-29 | 2014-05-29 | Shaft end sealing device for draught fan conveying high-temperature gas containing CO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892561U true CN203892561U (en) | 2014-10-22 |
Family
ID=51718969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284178.9U Expired - Fee Related CN203892561U (en) | 2014-05-29 | 2014-05-29 | Shaft end sealing device for draught fan conveying high-temperature gas containing CO |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953350A (en) * | 2019-12-12 | 2020-04-03 | 石家庄赛澳泵业有限公司 | Novel mechanical sealing device |
| 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 |
-
2014
- 2014-05-29 CN CN201420284178.9U patent/CN203892561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953350A (en) * | 2019-12-12 | 2020-04-03 | 石家庄赛澳泵业有限公司 | Novel mechanical sealing device |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |