CN203604220U - Combined draught fan - Google Patents
Combined draught fan Download PDFInfo
- Publication number
- CN203604220U CN203604220U CN201320771313.8U CN201320771313U CN203604220U CN 203604220 U CN203604220 U CN 203604220U CN 201320771313 U CN201320771313 U CN 201320771313U CN 203604220 U CN203604220 U CN 203604220U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- flow blower
- axial
- draught fan
- centrifugal 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a combined draught fan. The combined draught fan comprises a support, a shell, a centrifugal impeller, a main shaft and a motor. One side of the shell is connected with the centrifugal impeller. The upper end of the other side of the shell is provided with an air inlet. One end of the main shaft is connected with an output shaft of the motor. The main shaft penetrates through the centrifugal impeller and the shell. The two ends of the main shaft are fixed to a support through a first bearing pedestal and a second bearing pedestal respectively. The combined draught fan further comprises a first-level axial-flow impeller and a second-level axial-flow impeller. The first-level axial-flow impeller and the second-level axial-flow impeller are located inside the shell and installed on the main shaft in a sleeved mode. The combined draught fan has the advantages of being high in efficiency and saving electric energy.
Description
Technical field
The utility model relates to a kind of combined fan.
Background technique
While selecting centrifugal fan specification generally take blast as parameter, the requirement that the blast that can provide is more than or equal to required blast should be provided the blower fan of selected specification, because required blast is determined according to actual needs, therefore required blast is often between two blower fan specifications, no matter now which specification required blast more approaches, all to select the blower fan of larger specification, therefore cause fan efficiency low, correspondingly need more powerful motor to drive blower fan, thereby wasted the part electric energy of motor simultaneously.After blower fan specifications and models are determined, the blast that is less than or equal to this specification can only be provided, if needed suitably increase again some blast time, be generally the blower fan of selecting a large specification, can cause equally the problem of the low and waste electric energy of above-mentioned fan efficiency.
Model utility content
The technical problems to be solved in the utility model is to provide the combined fan of the high and saving power of a kind of efficiency.
For solving the problems of the technologies described above, a kind of combined fan of the utility model, contain support, housing, centrifugal impeller, main shaft and motor, one of described housing is connected with centrifugal impeller, upper end, described housing other end is provided with intake grill, described main shaft one end is connected with motor output shaft, described main shaft passes centrifugal impeller and housing and main shaft two ends and is fixed on support by bearing support one and bearing support two respectively, also contain first order axial-flow blower and second level axial-flow blower, described first order axial-flow blower and second level axial-flow blower are positioned at enclosure interior and are sleeved on main shaft.
In combinations thereof formula blower fan, owing to being provided with first order axial-flow blower and second level axial-flow blower, wind enters in Blower Housing from intake grill, during through second level axial-flow blower, be pressurized certain value, then continue to move ahead, during through first order axial-flow blower by supercharging certain value for the second time, after the wind of twice supercharging enters centrifugal impeller and is again pressurized, make blast meet required blast requirement, in the time that needs suitably increase some blast again, can adjust according to actual conditions angle or the increase third level axial-flow blower of the blade of first order axial-flow blower and second level axial-flow blower, fourth stage axial-flow blower etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of combined fan of the utility model.
1. bearing supports one in figure, 2. main shaft, 3. intake grill, 4. second level axial-flow blower, 5. housing, 6. first order axial-flow blower, 7. centrifugal impeller, 8. bearing support two, 9. motor, 10. support.
Embodiment
In Fig. 1, a kind of combined fan of the utility model, contain support 10, housing 5, centrifugal impeller 7, main shaft 2 and motor 9, 5 one of described housings are connected with centrifugal impeller 7, described housing 5 upper ends, other end are provided with intake grill 3, described main shaft 2 one end are connected with motor 9 output shafts, described main shaft 2 passes centrifugal impeller 7 and housing 5 and main shaft 2 two ends and is fixed on support 10 by bearing support 1 and bearing support 28 respectively, also contain first order axial-flow blower 6 and second level axial-flow blower 4, described first order axial-flow blower 6 and second level axial-flow blower 4 are positioned at housing 5 inside and are sleeved on main shaft 2.In combinations thereof formula blower fan, owing to being provided with first order axial-flow blower 6 and second level axial-flow blower 4, wind enters in Blower Housing 5 from intake grill 3, during through second level axial-flow blower 4, be pressurized certain value, then continue to move ahead, during through first order axial-flow blower 6 by supercharging certain value for the second time, after the wind of twice supercharging enters centrifugal impeller 7 and is again pressurized, make blast meet required blast requirement, in the time that needs suitably increase some blast again, can adjust according to actual conditions angle or the increase third level axial-flow blower of the blade of first order axial-flow blower 6 and second level axial-flow blower 4, fourth stage axial-flow blower etc.
Claims (1)
1. a combined fan, contain support, housing, centrifugal impeller, main shaft and motor, one of described housing is connected with centrifugal impeller, upper end, described housing other end is provided with intake grill, described main shaft one end is connected with motor output shaft, described main shaft passes centrifugal impeller and housing and main shaft two ends and is fixed on support by bearing support one and bearing support two respectively, it is characterized in that: also contain first order axial-flow blower and second level axial-flow blower, described first order axial-flow blower and second level axial-flow blower are positioned at enclosure interior and are sleeved on main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771313.8U CN203604220U (en) | 2013-12-01 | 2013-12-01 | Combined draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771313.8U CN203604220U (en) | 2013-12-01 | 2013-12-01 | Combined draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604220U true CN203604220U (en) | 2014-05-21 |
Family
ID=50716897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320771313.8U Expired - Fee Related CN203604220U (en) | 2013-12-01 | 2013-12-01 | Combined draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725427A (en) * | 2017-09-26 | 2018-02-23 | 吉利汽车研究院（宁波）有限公司 | A kind of air-conditioning draught fan |
-
2013
- 2013-12-01 CN CN201320771313.8U patent/CN203604220U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725427A (en) * | 2017-09-26 | 2018-02-23 | 吉利汽车研究院（宁波）有限公司 | A kind of air-conditioning draught 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20181201 |