CN201739226U - Conveyance leakage-prevention device for fans - Google Patents
Conveyance leakage-prevention device for fans Download PDFInfo
- Publication number
- CN201739226U CN201739226U CN2010202845940U CN201020284594U CN201739226U CN 201739226 U CN201739226 U CN 201739226U CN 2010202845940 U CN2010202845940 U CN 2010202845940U CN 201020284594 U CN201020284594 U CN 201020284594U CN 201739226 U CN201739226 U CN 201739226U
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- CN
- China
- Prior art keywords
- fan
- central shaft
- impeller
- conveyance
- fan impeller
- 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 discloses a conveyance leakage-prevention device for fans. A side wall center of a fan shell is connected with a central shaft, a fan impeller is arranged in the fan shell and coaxially connected with the central shaft, and a sealing plate is arranged on a connection part between the central shaft and the outer wall of the fan shell. The device is characterized in that the back face of the fan impeller is provided with an auxiliary impeller. The utility model has the technical effects that a negative pressure area is formed between the fan impeller and the central shaft, and the inner pressure of the fan is smaller than the external pressure so that carbon black cannot be leaked during conveyance, therefore, the environment of a production site is greatly improved and energy-saving and emission-reduction effects are achieved.
Description
Technical field
The utility model relates to a kind of device of anti-leak, relates in particular to a kind of anti-blower fan and carries the device that leaks.
Background technique
Main bag, useless bag in the production of carbon black, handling the collected carbon black powder of pulse again is to be transported to granulating system by the wind gas fan to carry out granulation.When carrying carbon black powder gas to enter the wind gas fan, can cause the blower fan internal pressure sharply to rise, when internal pressure greater than the casing external pressure, carbon black powder gas will leak from central shaft sealing plate place, cause equipment to turn round, pollute site environment, increase the carbon black unit consumption again.Mechanical seal is adopted in the back, though the packing seal mode can reach good sealing effect, has increased the wearing and tearing between axle and the filler, has caused the rising of blower fan electric power, increases power consumption, and the spoilage of equipment axis also improves greatly.
Summary of the invention
The purpose of this utility model has been to provide a kind of anti-blower fan to carry the device that leaks, and has solved mechanical seal, and packing seal makes between blower fan axle and the filler and rubs, and causes the rising of electric current, and then the spoilage of equipment is risen.
The utility model is achieved like this, it comprise fan casing, central shaft, draught fan impeller, sealing plate, sub-propeller, the sidewall center of fan casing is connected with central shaft, draught fan impeller is arranged in the fan casing, the coaxial connection central shaft of draught fan impeller, the outer wall joint of central shaft and fan casing is connected with sealing plate, it is characterized in that the back side of draught fan impeller is connected with sub-propeller.
Technique effect of the present utility model is: form negative pressuren zone between draught fan impeller and the central shaft, the blower fan internal pressure is less than external pressure, can not cause carbon black in course of conveying, to leak, make the environment of production scene obtain improving greatly, reach the effect of energy-saving and emission-reduction.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model is achieved like this, the sidewall center of fan casing 1 is connected with central shaft 2, draught fan impeller 3 is arranged in the fan casing 1, draught fan impeller 3 coaxial connection central shafts 2, central shaft 2 is connected with sealing plate 4 with the outer wall joint of fan casing 1, it is characterized in that the back side of draught fan impeller 3 is connected with sub-propeller 5.Install sub-propeller 5 behind additional at former draught fan impeller, be to make the zone between sub-propeller 5 and the central shaft 2 form negative pressuren zone, make internal pressure less than external pressure, in the process that carbon black is carried, can be because of carrying the large-minded carbon black powder that causes therefrom to leak at the axle place, reached good sealing effect, site environment also is greatly improved.
Claims (1)
1. an anti-blower fan is carried the device that leaks, it comprise fan casing, central shaft, draught fan impeller, sealing plate, sub-propeller, the sidewall center of fan casing is connected with central shaft, draught fan impeller is arranged in the fan casing, the coaxial connection central shaft of draught fan impeller, the outer wall joint of central shaft and fan casing is connected with sealing plate, it is characterized in that the back side of draught fan impeller is connected with sub-propeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202845940U CN201739226U (en) | 2010-08-06 | 2010-08-06 | Conveyance leakage-prevention device for fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202845940U CN201739226U (en) | 2010-08-06 | 2010-08-06 | Conveyance leakage-prevention device for fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739226U true CN201739226U (en) | 2011-02-09 |
Family
ID=43554502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202845940U Expired - Fee Related CN201739226U (en) | 2010-08-06 | 2010-08-06 | Conveyance leakage-prevention device for fans |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028205A1 (en) * | 2016-08-06 | 2018-02-15 | 中山大洋电机股份有限公司 | Wind wheel and blower using the same |
| CN108425869A (en) * | 2017-02-15 | 2018-08-21 | 发那科株式会社 | Fan unit, the manufacturing method of fan unit and motor drive |
-
2010
- 2010-08-06 CN CN2010202845940U patent/CN201739226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028205A1 (en) * | 2016-08-06 | 2018-02-15 | 中山大洋电机股份有限公司 | Wind wheel and blower using the same |
| CN108425869A (en) * | 2017-02-15 | 2018-08-21 | 发那科株式会社 | Fan unit, the manufacturing method of fan unit and motor drive |
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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: 20110209 Termination date: 20110806 |