CN202851394U - Back pumping exhaust fan - Google Patents
Back pumping exhaust fan Download PDFInfo
- Publication number
- CN202851394U CN202851394U CN 201220586847 CN201220586847U CN202851394U CN 202851394 U CN202851394 U CN 202851394U CN 201220586847 CN201220586847 CN 201220586847 CN 201220586847 U CN201220586847 U CN 201220586847U CN 202851394 U CN202851394 U CN 202851394U
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- CN
- China
- Prior art keywords
- wind wheel
- rotating shaft
- casing
- reverse pumping
- centrifugal
- 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)
- Wind Motors (AREA)
Abstract
A back pumping exhaust fan comprises an exhaust inlet, a chassis, a rotating shaft, a motor, a centrifugal wind wheel, a centrifugal fan blade, an output air pipe, a back pumping wind wheel and a back pumping fan blade. The exhaust inlet is communicated with the chassis. One end of the rotating shaft penetrates through the chassis and reaches the interior of the chassis. The centrifugal wind wheel is arranged on the rotating shaft in the chassis. The centrifugal fan blade is arranged on the centrifugal wind wheel. The other end of the rotating shaft is connected with the motor outside the chassis. The rotating shaft between the chassis and the motor is provided with the back pumping wind wheel. The back pumping wind wheel is provided with the back pumping fan blade. One end of the output air pipe is connected with the chassis, and the port of the other end of the output air pipe is towards the rotating direction of the pumping wind wheel. The back pumping exhaust fan has the advantages that electric power is inputted into the back pumping exhaust fan and wind power is outputted, the outputted wind power can be inputted into the back pumping exhaust fan again to further generate wind power, the exhausting effect is good, and the energy powder is saved.
Description
Technical field
The utility model relates to a kind of extractor fan, specifically a kind of reverse pumping induced draft fan.
Background technique
Traditional extractor fan generally is comprised of casing, air sucking mouth, fan leaf, rotating shaft and motor, the air sucking mouth is connected with casing, rotating shaft is installed in the casing, fan leaf is installed in an end of rotating shaft, the other end of rotating shaft is connected with motor, and the rotating shaft that utilizes motor electric power to drive extractor fan is rotated, and rotates thereby drive fan leaf, the fan leaf that rotates forms angrily stream, thereby indoor Bas Discharged is outdoor.This extractor fan working efficiency only depends on electric drive, and pumping efficiency is lower, and power consumption is larger.
The model utility content
The technical problems to be solved in the utility model is the deficiency that exists for above-mentioned extractor fan, and a kind of reverse pumping induced draft fan is provided, and reaches that pumping efficiency is high, the purpose of saving power.
The utility model solves the problems of the technologies described above the technological scheme of taking: a kind of reverse pumping induced draft fan, comprise air sucking mouth, casing, rotating shaft and motor, and the air sucking mouth is communicated with casing; Described reverse pumping induced draft fan also comprises centrifugal wind wheel, centrifugal cutter leaf, output airduct, reverse pumping wind wheel and reverse pumping fan leaf, it is inner to casing that one end of rotating shaft passes casing, centrifugal wind wheel is installed in the interior rotating shaft of casing, and the centrifugal cutter leaf is installed on the centrifugal wind wheel; The other end of rotating shaft is connected with motor outside casing, and the reverse pumping wind wheel also is installed in the rotating shaft between casing and the motor, and the reverse pumping fan leaf is installed on the reverse pumping wind wheel; One end of output airduct is communicated with casing, the direction that the port of the other end rotates towards the reverse pumping wind wheel.
Described output airduct has two, is located at respectively the both sides of casing.
Reverse pumping induced draft fan described in the utility model, motor is to reverse pumping induced draft fan input electric power, centrifugal wind wheel is rotated, drive the centrifugal cutter leaf and rotate generation wind-force, the wind-force that produces acts on the reverse pumping fan leaf through the output airduct, and reverse pumping fan leaf rotational velocity is accelerated, and then accelerates the rotation of reverse pumping wind wheel, because motor, reverse pumping wind wheel and centrifugal wind wheel are in the same rotating shaft, so the rotation of reverse pumping wind wheel further drives again the rotation of centrifugal wind wheel.The utility model is input electric power in the reverse pumping induced draft fan, and output wind-force, the wind-force of output can be inputted again in the reverse pumping induced draft fan and further to produce wind-force, has an air suction efficiency high, the advantage of saving power.
Description of drawings
Fig. 1 is the structural representation of reverse pumping induced draft fan described in the utility model.
Embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is described further.
As shown in Figure 1, a kind of reverse pumping induced draft fan comprises air sucking mouth 1, casing 2, rotating shaft 6, motor 9, centrifugal wind wheel 4, centrifugal cutter leaf 3, output airduct 5, reverse pumping wind wheel 8 and reverse pumping fan leaf 7; Air sucking mouth 1 is communicated with casing 2, and an end of rotating shaft 6 passes casing 2 to casing 2 inside, and centrifugal wind wheel 4 is installed in the rotating shaft 6 in the casing 2, and centrifugal cutter leaf 3 is installed on the centrifugal wind wheel 4; The other end of rotating shaft 6 is connected with motor 9 outside casing 2, in the rotating shaft 6 between casing 2 and the motor 9 reverse pumping wind wheel 8 is installed also, and reverse pumping fan leaf 7 is installed on the reverse pumping wind wheel 8; One end of output airduct 5 is communicated with casing 2, the direction that the other end port rotates towards reverse pumping wind wheel 8; Output airduct 5 has two, is located at respectively the both sides of casing 2.
The motor 9 of reverse pumping induced draft fan is given reverse pumping induced draft fan input electric power, centrifugal wind wheel 4 is rotated, drive centrifugal cutter leaf 3 and rotate generation wind-force, the wind-force that produces acts on reverse pumping fan leaf 7 through output airduct 5, reverse pumping fan leaf 7 rotational velocity are accelerated, and then accelerate the rotation of reverse pumping wind wheel 8, because motor 9, reverse pumping wind wheel 8 and centrifugal wind wheel 4 be in same rotating shaft 6, so the rotation of reverse pumping wind wheel 8 further drives again the rotation of centrifugal wind wheel 4.
Claims (2)
1. a reverse pumping induced draft fan comprises air sucking mouth, casing, rotating shaft and motor, and the air sucking mouth is communicated with casing; It is characterized in that, described reverse pumping induced draft fan also comprises centrifugal wind wheel, centrifugal cutter leaf, output airduct, reverse pumping wind wheel and reverse pumping fan leaf, it is inner to casing that one end of rotating shaft passes casing, and centrifugal wind wheel is installed in the interior rotating shaft of casing, and the centrifugal cutter leaf is installed on the centrifugal wind wheel; The other end of rotating shaft is connected with motor outside casing, and the reverse pumping wind wheel also is installed in the rotating shaft between casing and the motor, and the reverse pumping fan leaf is installed on the reverse pumping wind wheel; One end of output airduct is communicated with casing, the direction that the port of the other end rotates towards the reverse pumping wind wheel.
2. reverse pumping induced draft fan according to claim 1 is characterized in that, described output airduct has two, is located at respectively the both sides of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586847 CN202851394U (en) | 2012-11-08 | 2012-11-08 | Back pumping exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586847 CN202851394U (en) | 2012-11-08 | 2012-11-08 | Back pumping exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851394U true CN202851394U (en) | 2013-04-03 |
Family
ID=47982601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220586847 Expired - Fee Related CN202851394U (en) | 2012-11-08 | 2012-11-08 | Back pumping exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927020A (en) * | 2012-11-08 | 2013-02-13 | 吴星杰 | Reverse pumping draft fan |
-
2012
- 2012-11-08 CN CN 201220586847 patent/CN202851394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927020A (en) * | 2012-11-08 | 2013-02-13 | 吴星杰 | Reverse pumping draft 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: 20130403 Termination date: 20131108 |