CN2660378Y - Exhausting fan from roofing - Google Patents
Exhausting fan from roofing Download PDFInfo
- Publication number
- CN2660378Y CN2660378Y CN 200320110493 CN200320110493U CN2660378Y CN 2660378 Y CN2660378 Y CN 2660378Y CN 200320110493 CN200320110493 CN 200320110493 CN 200320110493 U CN200320110493 U CN 200320110493U CN 2660378 Y CN2660378 Y CN 2660378Y
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- CN
- China
- Prior art keywords
- air
- roof
- motor
- wind
- air duct
- 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 roof air and smoke exhaust fan, including a wind tube, which is provided with an inlet end of wind and an outlet end of wind. A motor is arranged inside the wind tube and is connected with a running impeller. A flow guiding cylinder is arranged around the motor, and a heat expelling hole is arranged at the upside of the flow guiding cylinder. A front guide vane is arranged in an air passage between the wind tube and the flow guiding cylinder. The outlet end of wind of the wind tube is provided an opposite opening loose-leaf air door. With reasonable structure and high running efficiency, the utility model exhausts gas and smoke towards sky during fire fighting and smoke exhausting with polluting roof.
Description
Technical field:
The utility model relates to a kind of blower fan.
Background technology:
At present, the air draft of known roof, smoke evacuation axial flow blower have " mushroom " shape blast cap usually, the blower fan pneumatic design is taked forced scheme, impeller blows out pumped (conveying) medium to motor side, one of its shortcoming is: the gas that impeller blows out is transferred 180 ° of after-blow to roofing with higher wind in " mushroom " shape blast cap, cause the bigger pressure loss, thereby blower fan actual measurement operational efficiency is lower; Two of shortcoming is: when fire-fighting is discharged fume flue gas is arranged to roofing, influenced roofing lifesaving environment.In addition, because the blower fan pneumatic design is taked forced scheme, therefore, the centrifugal cooling wheel of motor need be set specially when high temperature for the protection motor is not damaged.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the operational efficiency height, and flue gas discharges sky when fire-fighting is discharged fume, and does not pollute roof air draft, the smoke exhaust fan of roofing.
Technical solution of the present utility model is:
The air draft of a kind of roof, smoke exhaust fan, comprise have air intake, the air duct of outlet air end, its feature: motor is set in the air duct, motor is connected with the movable vane wheel, motor periphery dress guide shell, the top of water conservancy diversion barrel is provided with the heat extraction hole, and preceding stator is set on the air duct between air duct and the guide shell, and the outlet air end of air duct is provided with opposite opened loose-leaf air door.
Preceding stator is hollow airfoil.The air duct air intake is connected with base.Flap air door bottom is provided with rhone.The outlet air end dress air draft tube of air duct.
The utility model is rational in infrastructure, the operational efficiency height, and flue gas discharges sky when fire-fighting is discharged fume, and does not pollute roofing.
Description of drawings:
Fig. 1 is the configuration diagram of an embodiment of the utility model.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment:
The air draft of a kind of roof, smoke exhaust fan, comprise have air intake, the air duct of outlet air end 2, motor 6 is set in the air duct 2, motor 6 is connected with movable vane wheel 5, motor 6 peripheries dress guide shell 4, the top of water conservancy diversion barrel is provided with heat extraction hole 11, stator 3 before on the air duct between air duct 2 and guide shell 4 hollow airfoil being set, stator 3 outer ends and air duct 2 welding before the hollow airfoil, inner welding is opened on the lower end of guide shell 4, thereby the effect one of stator 3 is to improve blast and operational efficiency by pre-rotational gas flow before the hollow airfoil, the 2nd, and as the cooling motor air-inducing passage.The outlet air end of air duct 2 is provided with opposite opened loose-leaf air door 7; during fan operation; loose-leaf air door 7 is opened automatically because of the blast effect; and because of higher exhaust wind speed make sleet can not inlet chamber in; when blower fan is out of service; the loose-leaf air door is closed automatically because of the gravity effect, plays protection blower fan and the effect of being isolated from the outside.
The air duct air intake is connected with base 1, and during use, base 1 is fixed on the basis.Flap air door 7 bottoms are provided with rhone 10.The outlet air end of air duct 2 plays the effect that stops extraneous air-flow that air door is disturbed by support bar 9 dress air draft tubes 8.
During work, carry heat-dissipating impeller air draft pressurization by the suction and the motor of draught fan impeller, extraneous normal temperature air is by preceding stator 3, and the heat extraction hole 11 from motor guide shell 4 behind the cooling motor is discharged to the primary air.
Claims (5)
1, a kind of roof air draft, smoke exhaust fan, comprise have air intake, the air duct of outlet air end, it is characterized in that: motor is set in the air duct, motor is connected with the movable vane wheel, motor periphery dress guide shell, the top of water conservancy diversion barrel is provided with the heat extraction hole, and preceding stator is set on the air duct between air duct and the guide shell, and the outlet air end of air duct is provided with opposite opened loose-leaf air door.
2, roof air draft according to claim 1, smoke exhaust fan, it is characterized in that: preceding stator is hollow airfoil.
3, roof air draft according to claim 1 and 2, smoke exhaust fan, it is characterized in that: the air duct air intake is connected with base.
4, roof air draft according to claim 1 and 2, smoke exhaust fan is characterized in that: flap air door bottom is provided with rhone.
5, roof air draft according to claim 1 and 2, smoke exhaust fan is characterized in that: the outlet air end dress air draft tube of air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110493 CN2660378Y (en) | 2003-10-26 | 2003-10-26 | Exhausting fan from roofing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110493 CN2660378Y (en) | 2003-10-26 | 2003-10-26 | Exhausting fan from roofing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660378Y true CN2660378Y (en) | 2004-12-01 |
Family
ID=34343735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110493 Expired - Fee Related CN2660378Y (en) | 2003-10-26 | 2003-10-26 | Exhausting fan from roofing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660378Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747474A (en) * | 2015-03-20 | 2015-07-01 | 浙江聚英风机工业有限公司 | Integral roof fire protection draft fan and control system thereof |
| CN104791816A (en) * | 2015-04-09 | 2015-07-22 | 常州大学 | Automatic opening and closing equipment of double open type chimney cover |
| CN106342691A (en) * | 2016-08-26 | 2017-01-25 | 蚌埠依爱电子科技有限责任公司 | Self-suction twin-choke device for roof ventilator |
| CN110439835A (en) * | 2019-08-30 | 2019-11-12 | 湖南联诚轨道装备有限公司 | Motor is embedded in vane type entirety runner propeller fan |
| CN111829125A (en) * | 2020-07-16 | 2020-10-27 | 浙江惠创风机有限公司 | Fire control roof axial fan that discharges fume |
-
2003
- 2003-10-26 CN CN 200320110493 patent/CN2660378Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747474A (en) * | 2015-03-20 | 2015-07-01 | 浙江聚英风机工业有限公司 | Integral roof fire protection draft fan and control system thereof |
| CN104791816A (en) * | 2015-04-09 | 2015-07-22 | 常州大学 | Automatic opening and closing equipment of double open type chimney cover |
| CN106342691A (en) * | 2016-08-26 | 2017-01-25 | 蚌埠依爱电子科技有限责任公司 | Self-suction twin-choke device for roof ventilator |
| CN110439835A (en) * | 2019-08-30 | 2019-11-12 | 湖南联诚轨道装备有限公司 | Motor is embedded in vane type entirety runner propeller fan |
| CN111829125A (en) * | 2020-07-16 | 2020-10-27 | 浙江惠创风机有限公司 | Fire control roof axial fan that discharges fume |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |