CN201982336U - Swirl-type non-clogging energy-saving centrifugal fan - Google Patents
Swirl-type non-clogging energy-saving centrifugal fan Download PDFInfo
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- CN201982336U CN201982336U CN2011200965711U CN201120096571U CN201982336U CN 201982336 U CN201982336 U CN 201982336U CN 2011200965711 U CN2011200965711 U CN 2011200965711U CN 201120096571 U CN201120096571 U CN 201120096571U CN 201982336 U CN201982336 U CN 201982336U
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Abstract
The utility model relates to a swirl-type non-clogging energy-saving centrifugal fan, which comprises a frame, a shell, an impeller and a motor; the shell comprises a frustum-shaped flow-inducing chamber, a round or volute-shaped flow-swirling chamber and an umbrella-shaped flow-expanding chamber; the impeller is in a double-impeller structure which is axially opened at a single side and comprises a vane-type disk impeller and a bevel-gear-shaped impeller; in the vane-type disk impeller, two groups of long vanes and short vanes which are equal in quantity and are alternately and uniformly distributed are arranged on an impeller disk, or two groups of tall vanes and short vanes which are equal in quantity and are alternately and uniformly distributed are arranged on the impeller disk, and the long vanes and the short vanes or the tall vanes and the short vanes are vertically conjoined with the impeller disk in shapes of amplified circular arcs in axial and radial directions; and the bevel-gear-shaped impeller is a cone with an involute-gear-shaped gear surface. The swirl-type non-clogging energy-saving centrifugal fan simultaneously has the characteristics of high efficiency, low energy consumption, small noise, no clogging, long service life, fewer consumptive materials, easiness in processing, multiple functions and the like, the effects of energy saving and emission reduction are outstanding, and the economic and social benefits are remarkable.
Description
Technical field
The utility model is that a kind of rotary flow type does not have the energy-saving centrifugal of obstruction blower fan, belongs to energy-conservation equipment manufacturing and automatic field.
Background technique
As everyone knows, blower fan is that purposes is wide, consumption big, the engineering goods of big energy-consuming.From the subject angle, blower fan is hydromechanical application and development.From energy point of view, blower fan is that a class can convert the mechanical energy of prime mover to the pressure potential that is transferred fluid and the fluid machinery of kinetic energy.Blower fan is used very extensive in each department of national economy, as in mining industry, and the ventilation in tunnel; In metallurgical industry, the air blast of various smelting furnaces and the conveying of gas; In chemical industry, the dispatch of high temperature, corrosive gas; In general industry, the ventilation of factory building, workshop air-conditioning and atomic defence equipment etc.According to statistics, the power consumption of blower fan and pump accounts for 28～30% of national power consumption, and progressively to 40% transition.Yet the centrifugal blower that generally uses is both at home and abroad all realized energy transfer by the work done of rotary blade convection cell at present.When the impeller of gas and high speed rotating or blade contact and flow through its surface, gas not only will with impeller generation sharp impacts and friction, and will bump and rub with casing, realize will consuming lot of energy in this process, and produce bigger wearing and tearing and noise.The subject matter that this kind energy transfer mode exists is efficient low (50～80%), power consumption big (account for national gross generation 10～30%), noise big (more than the 100dB), life-span short (wearing and tearing of body passage component and seriously corroded).Although lot of domestic and foreign scholar has carried out arduous chronically research, and obtained certain effect, but take a broad view of various results of study, all the time do not jump out the traditional theory pattern of carrying out energy transfer with rotary blade, therefore raising the efficiency, reducing power consumption, reducing aspects such as noise and life-saving, improve and improve though have, all do not make a breakthrough.
China utility model patent notice of authorization specification CN02276572.7 has provided a kind of gas-blowing engine, and Chinese utility application prospectus CN02133790.X has provided a kind of blower, and two patents belong to identical content.China utility model patent notice of authorization specification CN90212613.X has provided a kind of large centrifugal blower fan impeller, and its structure is identical with the blade wheel structure of preceding two patents.The blower fan of above-mentioned three patents or impeller, its basic principle all carry out energy transfer by the work done of rotary blade convection cell, and its blade wheel structure all is to adopt double-deck slit type deviated splitter vane form, and linear leaf, short blade and wheel cap, wheel disc assembly welding are in aggregates.The shortcoming that the blower fan of this structure exists is that mechanical loss, volumetric loss and flow losses are all very big, has shortcomings such as efficient is low, big energy-consuming, air quantity is little, noise is big, the life-span is short, and there are deficiencies such as consumptive material is many, cost is high, manufacturing process complexity in its blade wheel structure.
China utility application prospectus CN200810016349.9 has provided a kind of high-efficiency multi-function centrifugal blower, China's utility model patent authorization authorizes specification CN200810017064.7 to provide a kind of structural high-efficiency energy-saving non-stick oil ventilator, the common feature of two patents is that described impeller is made up of the circular arc type runner blade of at least one group of one-sided sealing, axially amplification, the circular arc type runner blade manufacturing process of this kind structure is complicated, manufacturing efficiency is lower, and experiment shows that its performance is not the best; Described casing is inner, and the casing of this kind structure is sharply diffusion after gas enters intake grill, can produce sharp impacts to casing in order to have the circular two chambers or the multicell of suction port and air outlet, and produces big noise.
China utility application prospectus CN200910013929.7 has provided a kind of novel cyclone type high-efficiency energy-saving environment-friendly range hood, its major character is that the impeller of described blower fan is the axial one-sided opening impeller of a kind of disc type, blade one side is the radially vertical conjuncted structure of parabolic camber with the impeller plate, experimental results show that its oil smoke suction effect of impeller of this structure is not the best.
The model utility content
The purpose of this utility model is that system addresses the above problem, provide a kind of rotary flow type not have the energy-saving centrifugal of obstruction blower fan, it is by the blower fan principle, casing structure, blade wheel structure, blade structure, integrally-built system optimization and synthetic innovation design, in casing, form one and strengthen the auxilliary eddy flow field that closes, with the mode conveying gas (or material) of this eddy flow field with " gas drive gas ", rather than with rotary blade or blade conveying gas (or material), make the gas that is transferred neither with impeller generation sharp impacts and friction, also not with casing generation strong collision and friction, thereby reduce volumetric loss and flow losses significantly, significant prolongation impeller working life, and give blower fan multiple function.And then develop possess efficient, energy-conservation, low consumption simultaneously, characteristics such as environmental protection, the rotary flow type that its mixed economy technical order reaches domestic and international top standard does not have the energy-saving centrifugal of obstruction blower fan.
For achieving the above object, the utility model adopts following technological scheme:
A kind of rotary flow type does not have the energy-saving centrifugal of obstruction blower fan, it comprises frame, casing, impeller and motor, motor and casing are installed on frame, casing is provided with suction port and air outlet, described casing lures stream chamber, circle or scroll casing shape spin chamber and umbrella shape expansion stream three Room, chamber to constitute by taper type, impeller is installed in taper type and lures stream indoor, and directly is connected with motor shaft, to reduce mechanical loss; Described impeller is the blade type disk impeller of axial one-sided opening and the two-wheel structure that the cone gear form impeller is formed.
The casing of described three cell structures lures stream chamber, circle or scroll casing shape spin chamber and umbrella shape expansion stream chamber to constitute by taper type.Lure the indoor installation impeller of stream at taper type, induce the core that forms eddy flow field during the impeller rotation; Have only fluids such as air in circle or the scroll casing shape spin chamber, under the inducing of eddy flow field core, form and strengthen the auxilliary eddy flow field that closes, with the mode conveying gas (or material) of this eddy flow field, when entering this chamber, gas (or material) can not produce blocking phenomenon with " gas drive gas "; The effect that umbrella shape expands the stream chamber mainly is to alleviate the rapid diffusion of gas (or material) that enters from suction port to cause the sharp impacts of casing and the noise of generation.
Described impeller is made of blade type disk impeller and cone gear form impeller; Wherein, blade type disk impeller comprises the impeller plate and blade, on the impeller plate, be provided with quantity and equate, replace equally distributed two group leader's blade and short blades, short blade length is the 50-80% of linear leaf length, vertical with the impeller plate conjuncted at the circular arc linear leaf that axially all amplifies with both direction radially with short blade, the tangent line angle at the conjuncted place in linear leaf outer end and impeller plate edge is 20 °-40 °, this blade type disk impeller not only has good inducing action to the formation of eddy flow field, and has the effect that strengthens eddy flow field intensity; Axial forward end at blade type disk impeller is installed the cone gear form impeller, and the cone gear form impeller is the cone that the flank of tooth is involute profile, and this cone gear form impeller can play shunting action to the gas (or material) that enters casing, with further enhancing eddy flow effect.
Described impeller is made of blade type disk impeller and cone gear form impeller; Wherein, blade type disk impeller comprises the impeller plate and blade, on the impeller plate, be provided with two groups of quantity and equate, replace equally distributed high blade and short blade, short blade height is the 60-80% of high blade height, vertical with the impeller plate conjuncted at the circular arc form height blade that axially all amplifies with both direction radially with short blade, the tangent line angle at the conjuncted place in high blade outer end and impeller plate edge is 20 °-40 °, this blade type disk impeller not only has good inducing action to the formation of eddy flow field, and has the effect that strengthens eddy flow field intensity; Axial forward end at blade type disk impeller is installed the cone gear form impeller, and the cone gear form impeller is the cone that the flank of tooth is involute profile, and this cone gear form impeller can play shunting action to the gas (or material) that enters casing, with further enhancing eddy flow effect.
Described taper type lures stream appropriate location, side, chamber to be provided with the adjustable wheel hole of protecting.When blower fan is carried high temperature or is contained the solid and gas mixed flow body of solid particle, can open and protect wheel hole entering part fresh air envelope impeller, play the effect of cooling and protection impeller.
Described suction port is arranged on the side that umbrella shape expands the stream chamber, and the air outlet is arranged on the top of circle or scroll casing shape spin chamber; Angle α＜90 of the horizontal center line of air outlet outer wall and circle or scroll casing shape spin chamber ° atmidometer to reduce, and improve wind speed and blast.
The beneficial effects of the utility model are: the one, by the innovative design of casing and blade wheel structure, make the gas that is transferred not with impeller generation sharp impacts and friction, promptly gas is without impeller, thereby reduces energy consumption and significant prolongation working life in a large number; The 2nd, by integrally-built innovative design, in casing, form one and strengthen auxilliary gas cyclone field of closing, with the mode conveying gas (or material) of this eddy flow field with " gas drive gas ", rather than with impeller or blade conveying gas (or material), thereby give the multiple function of blower fan (air inducing, ventilation, suction material etc.), and do not produce blocking phenomenon.Gas cyclone field energy transfer mode is than traditional rotary blade energy transfer mode, possess the efficient height simultaneously, energy consumption is low, noise is little, do not have to stop up, the life-span is long, consumptive material is few, easy processing, characteristics such as multi-functional, its mixed economy technical order reaches domestic and international top standard, effects of energy saving and emission reduction is outstanding, remarkable economic and social benefits.
Rotary flow type of the present utility model does not have the energy-saving centrifugal of obstruction blower fan, compare with conventional fan, its the key technical indexes is that efficient improves more than 15%, energy-conservation more than 15%, noise reduces 3-10dB, the impeller material-saving is more than 1/2nd, and impeller life improves more than 3 times, has multiple functions such as ventilation, air-supply, air inducing, smoke evacuation, dust suction, suction material.
The utility model principle and technology are widely used in the manufacturing of multiple products such as air blast is combustion-supporting, blowdown dedusting, ventilation, conveying material, suction soiling solution, removing rivers,lakes and seas water surface rubbish, suction road surface accumulated snow, sweeper, range hood, vacuum cleaner, hand-drying device, air-conditioning special use, food medication chemistry product batching processing special use.
Description of drawings
Fig. 1 is the casing structure schematic representation;
Fig. 2 is the side structure schematic representation of Fig. 1;
Fig. 3 is the different blade wheel structure schematic representation of blade length;
Fig. 4 is the different blade wheel structure schematic representation of blade height.
Wherein, 1. casing, 2. suction port, 3. air outlet, 4. frame, 5. motor, 6. the adjustable wheel hole of protecting, 7. impeller, 8. taper type lures the stream chamber, 9. circle or scroll casing shape spin chamber, 10. umbrella shape expands stream chamber, 11. impeller plates, 12. the cone gear form impeller, 13. linear leafs, 14. short blades, 15 short blades, 16 high blades.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
A kind of rotary flow type does not have the energy-saving centrifugal of obstruction blower fan, it comprises that casing 1, suction port 2, air outlet 3, frame 4, motor 5, the adjustable wheel hole 6, impeller 7, taper type protected lure stream chamber 8, circle or scroll casing shape spin chamber 9, umbrella shape to expand stream chamber 10, as shown in Figure 1 and Figure 2.
On frame 4, install motor 5 and with casing 1, casing 1 is provided with suction port 2 and air outlet 3, described casing 1 lures stream chamber 8, circle or scroll casing shape spin chamber 9 and umbrella shape expansion stream chamber 10 to form by taper type, and impeller 7 is installed in taper type and lures in the stream chamber 8, and directly is connected with motor 5; The two-wheel structure that blade type disk impeller that described impeller 7 is axial one-sided opening and cone gear form impeller 12 are formed.
The side that described umbrella shape expands stream chamber 10 is provided with the adjustable wheel hole 6 of protecting.
Described suction port 2 is arranged on the side that umbrella shape expands stream chamber 10, and air outlet 3 is arranged on the top of circle or scroll casing shape spin chamber 9; Angle α＜90 of the horizontal center line of air outlet 3 outer walls and circle or scroll casing shape spin chamber 9 °.
Among Fig. 3, described impeller 7 is made of blade type disk impeller and cone gear form impeller 12; Wherein, blade type disk impeller comprises the impeller plate 11 and blade, on the impeller plate 11, be provided with two groups of quantity and equate, replace equally distributed linear leaf 13 and short blade 14, the length of short blade 14 is the 50-80% of linear leaf 13 length, linear leaf 13 in the circular arc of axially all amplifying with both direction radially is vertical conjuncted with the impeller plate 11 with short blade 14, and the tangent line angle at the conjuncted place in linear leaf 13 outer ends and impeller plate edge is 20 °-40 °; Axial forward end at the impeller plate 11 of blade type disk impeller is installed cone gear form impeller 12, and cone gear form impeller 12 is the cone of involute profile for the flank of tooth.
Among Fig. 4, described impeller 7 is made of blade type disk impeller and cone gear form impeller 12; Wherein, blade type disk impeller comprises the impeller plate 11 and blade, on the impeller plate 11, be provided with two groups of quantity and equate, replace equally distributed high blade 16 and short blade 15, short blade 15 highly is the 60-80% of high blade 16 height, vertical conjuncted with the impeller plate 11 with short blade 15 at the circular arc form height blade 16 that axially all amplifies with both direction radially, the tangent line angle at the conjuncted place in high blade 16 outer ends and impeller plate edge is 20 °-40 °; Axial forward end at the impeller plate 11 of blade type disk impeller is installed cone gear form impeller 12, and cone gear form impeller 12 is the cone of involute profile for the flank of tooth.
Claims (5)
1. a rotary flow type does not have the energy-saving centrifugal of obstruction blower fan, it comprises frame (4), casing (1), impeller (7) and motor (5), go up installation motor (5) and casing (1) in frame (4), casing (1) is provided with suction port (2) and air outlet (3), it is characterized in that, described casing (1) lures stream chamber (8), circle or scroll casing shape spin chamber (9) and umbrella shape to expand stream Room (10) three, chamber by taper type to form, and impeller (7) is installed in taper type and lures and flow in the chamber (8), and directly is connected with motor shaft; Described impeller (7) is the blade type disk impeller and cone gear form impeller (12) the two-wheel structure of axial one-sided opening.
2. rotary flow type as claimed in claim 1 does not have the energy-saving centrifugal of obstruction blower fan, it is characterized in that, described blade type disk impeller comprises the impeller plate (11), on the impeller plate (11), be provided with two groups of quantity and equate, replace equally distributed linear leaf (13) and short blade (14), short blade (14) length is the 50-80% of linear leaf (13) length, linear leaf (13) in the circular arc of axially all amplifying with both direction radially is vertical conjuncted with the impeller plate (11) with short blade (14), and the tangent line angle at linear leaf (13) outer end and the impeller plate (11) conjuncted place, edge is 20 °-40 °; Axial forward end at blade type disk impeller is installed cone gear form impeller (12), and cone gear form impeller (12) is the cone of involute profile for the flank of tooth.
3. rotary flow type as claimed in claim 1 does not have the energy-saving centrifugal of obstruction blower fan, it is characterized in that, described blade type disk impeller comprises the impeller plate (11), on the impeller plate (11), be provided with two groups of quantity and equate, replace equally distributed high blade (16) and short blade (15), short blade (15) highly is the 60-80% of high blade (16) height, high blade (16) in the circular arc of axially all amplifying with both direction radially is vertical conjuncted with the impeller plate (11) with short blade (15), and the tangent line angle at high blade (16) outer end and the impeller plate (11) conjuncted place, edge is 20 °-40 °; Axial forward end at blade type disk impeller is installed cone gear form impeller (12), and cone gear form impeller (12) is the cone of involute profile for the flank of tooth.
4. rotary flow type as claimed in claim 1 does not have the energy-saving centrifugal of obstruction blower fan, it is characterized in that, described taper type lures stream side, chamber (8) to be provided with the adjustable wheel hole (6) of protecting.
5. rotary flow type as claimed in claim 1 does not have the energy-saving centrifugal of obstruction blower fan, it is characterized in that, described suction port (2) is arranged on the side that umbrella shape expands stream chamber (10), and air outlet (3) are arranged on the top of circle or scroll casing shape spin chamber (9); Angle α＜90 of the horizontal center line of air outlet (3) outer wall and circle or scroll casing shape spin chamber (9) °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965711U CN201982336U (en) | 2011-04-02 | 2011-04-02 | Swirl-type non-clogging energy-saving centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965711U CN201982336U (en) | 2011-04-02 | 2011-04-02 | Swirl-type non-clogging energy-saving centrifugal fan |
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| Publication Number | Publication Date |
|---|---|
| CN201982336U true CN201982336U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200965711U Expired - Fee Related CN201982336U (en) | 2011-04-02 | 2011-04-02 | Swirl-type non-clogging energy-saving centrifugal fan |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128174A (en) * | 2011-04-02 | 2011-07-20 | 山东大学 | Spiral-flow type blockage-free energy-efficient centrifugal fan |
| CN102966554A (en) * | 2012-12-29 | 2013-03-13 | 湖南鸿飞机械有限公司 | Lead pump |
| CN103277326A (en) * | 2013-06-04 | 2013-09-04 | 上海布威重工机械有限公司 | Multi-vane fan |
| CN103285633A (en) * | 2013-06-13 | 2013-09-11 | 安徽国祯环保节能科技股份有限公司 | Stirring impeller of sand removing machine in vortex-type grit chamber |
-
2011
- 2011-04-02 CN CN2011200965711U patent/CN201982336U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128174A (en) * | 2011-04-02 | 2011-07-20 | 山东大学 | Spiral-flow type blockage-free energy-efficient centrifugal fan |
| CN102966554A (en) * | 2012-12-29 | 2013-03-13 | 湖南鸿飞机械有限公司 | Lead pump |
| CN103277326A (en) * | 2013-06-04 | 2013-09-04 | 上海布威重工机械有限公司 | Multi-vane fan |
| CN103285633A (en) * | 2013-06-13 | 2013-09-11 | 安徽国祯环保节能科技股份有限公司 | Stirring impeller of sand removing machine in vortex-type grit chamber |
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| Date | Code | Title | Description |
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| 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: 20110921 Termination date: 20140402 |