CN204851756U - Prevent leaking centrifugal fan - Google Patents
Prevent leaking centrifugal fan Download PDFInfo
- Publication number
- CN204851756U CN204851756U CN201520530415.XU CN201520530415U CN204851756U CN 204851756 U CN204851756 U CN 204851756U CN 201520530415 U CN201520530415 U CN 201520530415U CN 204851756 U CN204851756 U CN 204851756U
- Authority
- CN
- China
- Prior art keywords
- seal device
- hole
- spiral case
- drainage
- flexible pipe
- 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 provides a prevent leaking centrifugal fan, includes spiral case, impeller, motor, pivot, bearing seal device, its characterized in that: being provided with the drainage groove in the bearing seal device between spiral case and the pivot, having the drainage hole of having a perfect understanding with the drainage groove on the bearing seal device, be equipped with the hole hose connection mouth that dams on the drainage hole, connect the hose on the hole hose connection mouth that dams, the hose is linked together with the air intake barrel, utilize negative pressure drainage principle, drainage groove between spiral case and the pivot has leaks when gaseous, can avoid the gas leakage through hose flow direction air intake, the beneficial effects are that: can avoid the gas leakage, the avoid accident takes place.
Description
Technical field
The utility model relates to a kind of centrifugal blower, is specifically related to a kind of centrifugal blower of anti-leak.
Background technique
Gap is there is between existing ventilator rotating shaft and spiral case, gas in fan operation process in centrifugal blower can leak, when centrifugal blower is for carrying the occasion of special gas (as: inflammable, explosive or toxic and harmful), if there is external leakage will cause very serious accident.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art exactly, and provides a kind of anti-leak centrifugal blower.
The technical solution adopted in the utility model is to achieve these goals: a kind of anti-leak centrifugal blower, comprise spiral case, impeller, motor, rotating shaft, gland seal device, it is characterized in that: in the gland seal device between spiral case and rotating shaft, be provided with drainage trough, gland seal device there is the conduction hole through with drainage trough, cutoff hole flexible pipe connection nipple conduction hole is equipped with, cutoff hole flexible pipe connection nipple is connected to flexible pipe, and flexible pipe is connected with intake grill cylindrical shell.
Its principle is: utilize negative pressure drainage principle, and the gas atmosphere that gland seal device leaks is large, and the air pressure of intake grill is little, when the drainage trough between spiral case and rotating shaft has a gas leakage, flows to intake grill can avoid Leakage Gas by flexible pipe.
Compared with prior art, the beneficial effects of the utility model are: can avoid Leakage Gas, and Accident prevention occurs.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment anti-leak centrifugal blower.
Icon illustrates: 1. spiral case; 2. impeller; 3. motor; 4. rotating shaft; 5. gland seal device; 6. drainage trough; 7. conduction hole; 8. cutoff hole flexible pipe connection nipple; 9. flexible pipe; 10. intake grill cylindrical shell.
Embodiment
Fig. 1 is the structural representation of the utility model embodiment anti-leak centrifugal blower, the utility model anti-leak centrifugal blower, comprise spiral case 1, impeller 2, motor 3, rotating shaft 4, gland seal device 5, it is characterized in that: in the gland seal device 5 between spiral case 1 and rotating shaft 4, be provided with drainage trough 6, gland seal device 5 there is the conduction hole 7 through with drainage trough 6, cutoff hole flexible pipe connection nipple 8 conduction hole 7 is equipped with, the diameter of cutoff hole is 1 ~ 2mm, cutoff hole flexible pipe connection nipple 8 is connected to flexible pipe 9, and flexible pipe 9 is connected with intake grill cylindrical shell 10.When having gas leakage, flow to intake grill by flexible pipe, thus avoid Leakage Gas, Accident prevention occurs.
Claims (1)
1. an anti-leak centrifugal blower, comprise spiral case, impeller, motor, rotating shaft, gland seal device, it is characterized in that: in the gland seal device between spiral case and rotating shaft, be provided with drainage trough, gland seal device there is the conduction hole through with drainage trough, cutoff hole flexible pipe connection nipple conduction hole is equipped with, cutoff hole flexible pipe connection nipple is connected to flexible pipe, and flexible pipe is connected with intake grill cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530415.XU CN204851756U (en) | 2015-07-21 | 2015-07-21 | Prevent leaking centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530415.XU CN204851756U (en) | 2015-07-21 | 2015-07-21 | Prevent leaking centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851756U true CN204851756U (en) | 2015-12-09 |
Family
ID=54742310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520530415.XU Expired - Fee Related CN204851756U (en) | 2015-07-21 | 2015-07-21 | Prevent leaking centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855604A (en) * | 2021-01-12 | 2021-05-28 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
-
2015
- 2015-07-21 CN CN201520530415.XU patent/CN204851756U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20151209 Termination date: 20200721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |