CN102828977B - Energy-saving fan - Google Patents
Energy-saving fan Download PDFInfo
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- CN102828977B CN102828977B CN201210345934.XA CN201210345934A CN102828977B CN 102828977 B CN102828977 B CN 102828977B CN 201210345934 A CN201210345934 A CN 201210345934A CN 102828977 B CN102828977 B CN 102828977B
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Abstract
The invention discloses an energy-saving fan, which comprises a shell (1), and a motor (4), a front impeller (7) and a rear impeller (8), which are arranged inside the shell (1), wherein the front impeller (7) and the rear impeller (8) are installed on a rotating shaft (6) of the motor (4), and the flow rate and the wind pressure of the front impeller (7) are smaller than that of the rear impeller (8) under the same rotation speed. Through the rotation of the front impeller (7) and the rear impeller (8), airflow is formed, the air has large air quantity and large air pressure, so that the energy-saving fan has characteristics of an axial flow fan and a centrifugal fan; and moreover, the size is small, the energy consumption is low, and the vibration and noise also can be reduced.
Description
Technical field
The present invention relates to blower fan technical field, be specifically related to a kind of energy-saving fan.
Background technique
Blower fan is used in the fields such as air draft, air-supply and dedusting.In traditional blower fan technical field, blower fan all only uses an impeller, and impeller is fixed on motor shaft.Air enters blower fan inside from intake grill, and the promotion that is subject to impeller obtains kinetic energy, forms high velocity air and flows out from exhaust outlet.Wherein, the diameter of impeller is larger, and rotating speed is higher, and the kinetic energy that air-flow obtains is also larger, and blast and air quantity are also higher.In limited space, as tunnel or underground parking garage etc., because of the restriction of usage space, cannot arrange large fan impeller, use multiple realization compared with small impeller blower fan to ventilate and ventilation and only have, not only install and use all conveniently not, and power consumption is large.Existing blower fan also exists noise large, the shortcoming that anti seismic efficiency is bad.
Summary of the invention
Object of the present invention is to overcome the deficiencies in the prior art, provides a kind of volume little, and air quantity and blast are large, and noise is little, and anti seismic efficiency is good, the energy-saving fan that power consumption is low.
Object of the present invention is achieved through the following technical solutions:
Energy-saving fan, it comprises:
Housing, has the air passageways passing through for air in housing, in two shaft end side of air passageways, have respectively air suction inlet and air outlet;
Motor, motor is arranged in housing, and the front-end and back-end of motor are stretched out in the rotating shaft of motor, and rotating shaft is positioned on the axial direction of air passageways;
Front impeller, front impeller is fixed in rotating shaft, and frontal lobe wheel is arranged in housing and near air suction inlet, front impeller rotates in housing, for by outside air suction casing;
Rear impeller, rear impeller is fixed in rotating shaft, and posterior lobe wheel is arranged in housing and near air outlet, rear impeller rotates in housing, for by the Bas Discharged in housing;
Described front impeller and rear impeller are under same rotational speed, and the flow of front impeller and blast are less than flow and the blast of rear impeller.The present inventor has studied the relation between the flow of front impeller and rear impeller and blast and blower fan air-supply feature.Research is found, compares with the front impeller of other form and the combination of rear impeller, adopts combinations thereof can produce larger air quantity and blast.
Described air suction inlet and air outlet are circular, and the diameter of air suction inlet is less than the diameter of air outlet.The present inventor has also studied the diameter ratio of air suction inlet and air outlet and the relation that blower fan is blown between feature simultaneously.Research is found, compared with other diameter ratio, adopts above-mentioned diameter specific energy to obtain maximum air quantity and blast.
Further, described energy-saving fan also comprises movable body, and movable body is arranged in air passageways, movable body comprise sectional area to end diminishing front end and rearward end, described motor, front impeller and rear impeller are arranged in movable body.
Further, between the front end of described movable body, rearward end and housing, be filled with soft-filler, for reducing the friction between movable body and housing, play the effect of damping.
Further, described outside is enclosed with antidetonation silencing plate, plays the effect that reduces noise.
Further, on described housing, be provided with leg.
Further, on described housing, there is the shaft end side of air suction inlet to be provided with blast cap.
Further, have the shaft end side of air outlet to be provided with flange on described housing, this flange is for being connected with follow-up pipeline.
Further, the angle of described front end, rearward end and shell inner surface is 25 ° ~ 45 °.
Further, described air suction inlet is 1:1.2 with the diameter ratio of air outlet.
Further, described movable body is fixed in air passageways by latch.
Advantage of the present invention and beneficial effect are:
1. by the vane rotary of former and later two particular combinations of driven by motor, obtain very large blast and air quantity, not only volume is little, and owing to only using a motor, its power consumption is low;
2. the diameter of air suction inlet and air outlet, than for 1:1.2, adopts above-mentioned diameter specific energy to obtain maximum air quantity and blast;
3. be arranged so that installation of the present invention and the maintenance of movable body become simple and easy, only need to remove latch can be from housing extraction activity body, thereby easily motor and impeller are overhauled and are changed;
4. soft-filler and antidetonation silencing plate play the effect of damping noise reduction.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Wherein, the corresponding component name of reference character is called:
1-housing, 2-air passageways, 3-air suction inlet, 4-air outlet, 5-motor, 6-rotating shaft, impeller before 7-, impeller after 8-, the movable body of 9-, 10-latch, 11-soft-filler, 12-antidetonation silencing plate, 13-leg, 14-blast cap, 15-flange, 91-front end, 92-rearward end.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and protection scope of the present invention is not limited to the following stated.
Embodiment 1:
As shown in Figure 1, energy-saving fan, it comprises:
Housing 1, in housing 1, there is the air passageways 2 passing through for air, the cross section of air passageways 2 is circular, in two shaft end side of air passageways 2, there is respectively air suction inlet 3 and air outlet 4, in order to improve air quantity and blast, air suction inlet 3 and air outlet 4 are set to circle, and the diameter that air suction inlet 3 and air outlet 4 are set is than being 1:1.2.
This energy-saving fan also comprises motor 5, and motor 5 is arranged in housing 1, and the front-end and back-end of motor 5 are stretched out in the rotating shaft 6 of motor 5, makes the front-end and back-end of motor 5 can connect load simultaneously, and rotating shaft 6 is positioned on the axial direction of air passageways 2.Front impeller 7 is fixed in rotating shaft 6, and front impeller 7 is arranged in housing 1 close air suction inlet 3; Rear impeller 8 is fixed in rotating shaft 6, and rear impeller 8 is arranged in housing 1 and near air outlet 4, can forms one along the axial air-flow of air passageways 2 by the rotation of front impeller 7 and rear impeller 8.In order to ensure that this air-flow enters from air suction inlet 3, and discharge from air outlet 4, front impeller 7 is identical with the installation direction of rear impeller 8, and its suction end is towards air suction inlet 3, and its exhaust end is towards air outlet 4.
By the present inventor's research, front impeller 7 and rear impeller 8 are under same rotational speed, if the flow of front impeller 7 and blast are less than flow and the blast of rear impeller 8, this blower fan is in when work, air quantity and blast when the air quantity at air outlet 4 places and blast are greater than front impeller 7 or rear impeller 8 with same rotational speed isolated operation.Before in the present embodiment, impeller 7 is selected T30 type impeller, plane No. 2.5, and rear impeller 8 is selected T40 type impeller, plane No. 3.5.
For the installation that makes the present embodiment is overhauled and is more prone to very much, the present embodiment is also provided with movable body 9, the cross section of movable body 9 is circular, the external diameter of movable body 9 is slightly less than the internal diameter of air passageways 2, movable body 9 can be installed in housing 1, movable body 9 comprise sectional area to end diminishing front end 91 and rearward end 92, front end 91 is corresponding with air suction inlet 3, rearward end 92 is corresponding with air outlet 4, and the end diameter of front end 91 and rearward end 92 is not less than the diameter of air suction inlet 3 and air outlet 4.Above-mentioned motor 5, front impeller 7 and rear impeller 8 are arranged in movable body 9.Air enters through air suction inlet 3, by behind the inner space of movable body 9, is discharged by air outlet 4.This activity body 9 is fixing by latch 10.Latch 10 peg graft with housing 1 on, and contact with the outer surface of rearward end 92 with front end 91, fix movable body 9, just can freely movable body 9 be taken out taking out after latch 10.
In order to reduce the vibrations of the present embodiment, between front end 91, rearward end 92 and the housing 1 of above-mentioned movable body 9, be filled with soft-filler 11.In the present embodiment, this soft-filler 11 is fire-proof asbestos.In other mode of execution, adopt the flexible material that other burning-point is higher also can play the effect identical with fire-proof asbestos.
In order to reduce the noise of the present embodiment, there is antidetonation silencing plate 12 in above-mentioned housing 1 outer wrap, this antidetonation silencing plate 12 is made up of glass wool.In other mode of execution, adopt other sound absorbing material also can play the effect identical with glass wool.
On above-mentioned housing 1, be also provided with leg 13.
The shaft end side that is provided with air suction inlet 3 on above-mentioned housing 1 is provided with for preventing that foreign matter from entering the blast cap 14 of enclosure interior, offers the opening corresponding with air suction inlet 3 on blast cap 14.
The shaft end side that is provided with air outlet 4 on above-mentioned housing 1 is provided with flange 15, for being connected with pipeline.
Above-mentioned front end 91, rearward end 92 are 25 ° ~ 45 ° with the angle of housing 1 internal surface, this angle is used for adjusting axial length of the present invention, in the case of the end diameter of front end 91 and rearward end 92 is constant, angle is larger, and axial length of the present invention is shorter.According to actual needs, can freely adjust.In the present embodiment, angle is 25 °.
Embodiment 2:
In the present embodiment, front impeller 7 adopts T30 type impeller, plane No. 6, rear impeller 8 adopts T35 type impeller, plane No. 6.3, front end 91, rearward end 92 are 35 ° with the angle of housing 1 internal surface, soft-filler 11 is fire prevention silica gel, antidetonation silencing plate 12 is made up of acoustical cotton, and all the other technical characteristicss are identical with embodiment 1.
Maximum wind pressure and the maximum quantity of wind of impeller used in embodiment 1 and 2 have been shown in following table, and maximum wind pressure and the maximum quantity of wind of energy-saving fan in embodiment 1 ~ 3.
As can be seen from the above table, maximum wind pressure of the present invention and maximum quantity of wind are greater than maximum wind pressure and the maximum quantity of wind of single impeller.
The present invention, compared with traditional blower fan, can produce very high blast and higher air quantity, have the feature of axial-flow blower and centrifugal blower concurrently, and volume is little, and energy consumption is low, has realized the minimizing of vibrations and noise simultaneously.
T30, T35 and T40 are the standard series of impeller, and plane No. represents concrete model, and the impeller of above-mentioned model is general in the industry.
Claims (9)
1. energy-saving fan, is characterized in that, it comprises:
Housing (1), has air passageways (2) in housing (1), have respectively air suction inlet (3) and air outlet (4) in two shaft end side of air passageways (2);
Motor (5), motor (5) is arranged in housing (1), and the front-end and back-end of motor (5) are stretched out in the rotating shaft (6) of motor (5), and rotating shaft (6) is positioned on the axial direction of air passageways (2);
Front impeller (7), it is upper that front impeller (7) is fixed on rotating shaft (6), and front impeller (7) is arranged in housing (1) close air suction inlet (3);
Rear impeller (8), it is upper that rear impeller (8) is fixed on rotating shaft (6), and rear impeller (8) is arranged in housing (1) close air outlet (4);
Described front impeller (7) and rear impeller (8) are under same rotational speed, and the flow of front impeller (7) and blast are less than flow and the blast of rear impeller (8);
Described air suction inlet (3) and air outlet (4) are circular, and the diameter of air suction inlet (3) is less than the diameter of air outlet (4);
Described energy-saving fan also comprises movable body (9), movable body (9) is arranged in air passageways (2), movable body (9) comprise sectional area to end diminishing front end (91) and rearward end (92), described motor (5), front impeller (7) and rear impeller (8) are arranged in movable body (9).
2. energy-saving fan according to claim 1, is characterized in that: between front end (91), rearward end (92) and the housing (1) of described movable body (9), be filled with soft-filler (11).
3. energy-saving fan according to claim 1, is characterized in that: described housing (1) outer wrap has antidetonation silencing plate (12).
4. energy-saving fan according to claim 1, is characterized in that: on described housing (1), be provided with leg (13).
5. energy-saving fan according to claim 1, is characterized in that: on described housing (1), have the shaft end side of air suction inlet (3) to be provided with blast cap (14).
6. energy-saving fan according to claim 1, is characterized in that: on described housing (1), have the shaft end side of air outlet (4) to be provided with flange (15).
7. energy-saving fan according to claim 1, is characterized in that: described front end (91), rearward end (92) are 25 ° ~ 45 ° with the angle of housing (1) internal surface.
8. energy-saving fan according to claim 1, is characterized in that: described air suction inlet (3) is 1:1.2 with the diameter of air outlet (4) ratio.
9. energy-saving fan according to claim 1, is characterized in that: described movable body (9) is fixed in air passageways (2) by latch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345934.XA CN102828977B (en) | 2012-09-18 | 2012-09-18 | Energy-saving fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345934.XA CN102828977B (en) | 2012-09-18 | 2012-09-18 | Energy-saving fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102828977A CN102828977A (en) | 2012-12-19 |
| CN102828977B true CN102828977B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345934.XA Active CN102828977B (en) | 2012-09-18 | 2012-09-18 | Energy-saving fan |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423212B (en) * | 2013-08-29 | 2017-02-08 | 中国矿业大学 | Mine fan |
| CN104329275A (en) * | 2014-11-28 | 2015-02-04 | 德清振达电气有限公司 | High-rotation-speed axial flow fan |
| CN104524879B (en) * | 2015-01-14 | 2017-03-15 | 安徽德赫斯曼环保设备科技有限公司 | Air cleaning unit |
| CN106738269A (en) * | 2017-02-07 | 2017-05-31 | 南通市恒达机械制造有限公司 | The outdoor steam-cured machine of new-type solar energy adobe humidification |
| CN109395824A (en) * | 2018-09-21 | 2019-03-01 | 昆明特康科技有限公司 | A kind of clean mill of rue and its application method and the product processed with the clean mill of rue |
| CN111594463A (en) * | 2020-05-21 | 2020-08-28 | 广州文冲船舶修造有限公司 | Pneumatic smoke exhauster |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830587A (en) * | 1971-12-20 | 1974-08-20 | Hudson Products Corp | Axial flow fan assembly |
| CN2243560Y (en) * | 1996-04-30 | 1996-12-25 | 金恒斌 | Opposite axial blower equipped with two stage impellers with different diameters |
| US6565334B1 (en) * | 1998-07-20 | 2003-05-20 | Phillip James Bradbury | Axial flow fan having counter-rotating dual impeller blade arrangement |
| CN101498312A (en) * | 2009-02-21 | 2009-08-05 | 朱梓瑜 | Double impeller ventilating apparatus with rubber pipe wind pipe |
| CN201593518U (en) * | 2010-01-27 | 2010-09-29 | 福建兢辉环保科技有限公司 | Double impeller evaporation-type air cooler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080138199A1 (en) * | 2006-12-12 | 2008-06-12 | Bor-Haw Chang | Fan device capable of increasing air pressure and air supply |
-
2012
- 2012-09-18 CN CN201210345934.XA patent/CN102828977B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830587A (en) * | 1971-12-20 | 1974-08-20 | Hudson Products Corp | Axial flow fan assembly |
| CN2243560Y (en) * | 1996-04-30 | 1996-12-25 | 金恒斌 | Opposite axial blower equipped with two stage impellers with different diameters |
| US6565334B1 (en) * | 1998-07-20 | 2003-05-20 | Phillip James Bradbury | Axial flow fan having counter-rotating dual impeller blade arrangement |
| CN101498312A (en) * | 2009-02-21 | 2009-08-05 | 朱梓瑜 | Double impeller ventilating apparatus with rubber pipe wind pipe |
| CN201593518U (en) * | 2010-01-27 | 2010-09-29 | 福建兢辉环保科技有限公司 | Double impeller evaporation-type air cooler |
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| CN102828977A (en) | 2012-12-19 |
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