CN103629155B - A kind of wearable fan - Google Patents
A kind of wearable fan Download PDFInfo
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- CN103629155B CN103629155B CN201310238443.XA CN201310238443A CN103629155B CN 103629155 B CN103629155 B CN 103629155B CN 201310238443 A CN201310238443 A CN 201310238443A CN 103629155 B CN103629155 B CN 103629155B
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- spiral case
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- exhaust outlet
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Abstract
The invention discloses in a kind of place more at air particle can the blower fan of available protecting impeller, and when the blower fan overcoming prior art works in the operational site that air particle is more, its impeller blade is easily scraped damage, causes the flimsy deficiency of blower fan.Described a kind of wearable fan, comprise impeller, spiral case, described spiral case is provided with intake grill, exhaust outlet, snail tongue, described impeller comprises wheel disc, be located at some blades on wheel disc, described blade windward side, sheave surface are provided with ceramic plate, and described ceramic plate is connected by binder course with blade, sheave surface.The present invention be applicable to blower fan in the past the occasion that is suitable for, have that blade wear resistance is good, service life of fan is long, noise is little, ventilation efficiency advantages of higher.
Description
Technical field
The present invention relates to field of fluid machinery, particularly relate to a kind of wearable fan.
Background technique
Blower fan is the mechanical energy relying on input, improves gas pressure and to supply gas side by side the machinery of body.Aborning, especially need the place of air draft, air blast, blower fan is widely used especially.The blower fan used in the Workplace that some air particles are more, as being used in the blower fan in manufacture of cement place, the windward side of blade is often easily touched, is struck particulate matter, cause the wearing and tearing of blade, and blade is once wearing and tearing are comparatively serious, will destroy the dynamic balancing of blower fan, cause fan bearing to vibrate excessive, these factors all easily cause the damage of blower fan.
See disclosed " blower fan " in Chinese patent literature, its notification number is CN102192169A, and this blower fan comprises a power fan, a load bearing seat and a driven member.Driven member rotates by the wind-force of power fan, comprises a hub portion, multiple blade, an annular flow guide structure and a load elements.Hub portion is located on load bearing seat.Blade shroud is located at hub portion.Annular flow guide structure is around in blade end.Load elements is connected with annular flow guide structure.This invention deficiency is, if use it for the more Workplace of air particle, impeller blade cannot be avoided to be scratched, and easily causes fanman to do dynamic balancing and is destroyed, make blower fan fragile.
Summary of the invention
When the blower fan that the object of the invention is to solve prior art works in the operational site that air particle is more; its impeller blade is easily scraped damage; cause the flimsy deficiency of blower fan, to provide in a kind of place more at air particle can available protecting impeller blower fan.
The present invention is achieved by the following technical solutions:
A kind of wearable fan, comprise impeller, spiral case, described spiral case is provided with intake grill, exhaust outlet, snail tongue, described impeller comprises wheel disc, be located at some blades on wheel disc, described blade windward side, sheave surface are provided with ceramic plate, and described ceramic plate is connected by binder course with blade, sheave surface.Described binder course can be the bonding such as glue layer, cement layer, fastening.The particulate in air of working environment is more; during wheel rotation; blade windward side, wheel disc can be swiped, be clashed into particulate matter; cause scraping damage, and on blade, wheel disc, paste ceramic layer, can play a protective role; ceramic abrasive resistance is good; not easily damaged, and ceramic surface not easily attaching particles thing, therefore blade can keep comparatively stable working state.
As preferably, described blade is provided with the anti-votex sheet to side deviation, and described anti-votex sheet the inner is provided with the convex handle stretched in binder course, and the deviation direction of described anti-votex sheet is contrary with wheel rotation direction.When the particulate matter in air enters in volute of blower, hit by blade, throw spiral case sidewall, wherein a part is rebounded or along with between air-flow backspace blade, is caused damage to vacuum side of blade, and wherein part also can be attached to vacuum side of blade.The deviation direction of anti-votex sheet is contrary with wheel rotation direction; reduce air-flow outside impeller stroke range and air particle and return angle between impeller; blade is protected; simultaneously; the gas returned in impeller stroke space can also be reduced; thus reduce the eddy current of blower interior, improve fan efficiency and operation stability.
As preferably, the space in described spiral case comprise by blade rotation the impeller cavity that formed through space, and the side runner be affixed with impeller cavity, the snail tongue of circulation area on spiral case of described side runner increases progressively to exhaust outlet.In spiral case, along snail tongue to exhaust outlet direction, built up by the gas that impeller pushes in side runner, its mass flow rate is increasing, the snail tongue of circulation area on spiral case of side runner increases progressively to exhaust outlet, can adapt to this rule, avoids air-flow in side runner to accelerate excessively and to cause the gas flow of the impeller cavity that rebounds back excessive, affect fan efficiency, also prevent the too much bounce-back of the particulate matter in air-flow from returning between blade.
As preferably, be provided with the accumulating tank be communicated with spiral case bottom described spiral case, described accumulating tank is provided with deashing door.Particulate matter in air and impurity, along with air-flow moves together in side runner, or thrown on spiral case wall by air-flow, finally all easily be deposited on bottom spiral case, and be provided with deashing groove, most of particulate matter can be made, impurity enters accumulating tank, only need timing, jack-up opens deashing door, exhaust particulate matter and impurity, just can easily remove the most of particulate matter in shell and impurity.
As preferably, described accumulating tank comprise two with the side of spiral case external frame contact of a curve, described lateral width is identical with Casing width, and the Opening length of described accumulating tank and spiral case connectivity part is less than the spacing of adjacent blades end.Thrown spiral case sidewall by impeller and taken to the air particle of spiral case sidewall by air-flow, identical at its velocity attitude instantly of contact spiral case sidewall with spiral case tangential direction, two sides and spiral case external frame contact of a curve, can make to be driven the air particle bottom spiral case directly to enter in accumulating tank by air-flow, reduce it and return ratio in spiral case.
As preferably, described snail tongue is protruding towards exhaust outlet near the part of exhaust outlet, forms a relief portion, and described snail tongue is protruding towards impeller away from the part of exhaust outlet, forms an occlusion part.Snail tongue be air draft air-flow be separated with from air draft air-flow a part again enter the point of division that spiral case carries out Inner eycle air-flow, relief portion can reduce air draft retardance, effective raising ventilation efficiency, reduce the tear(ing) strength of this place's air-flow simultaneously, effective reduction noise, and occlusion part can reduce the amount separating the air-flow again entered in spiral case from air draft air-flow, improve effective mass flow and the efficiency of blower fan.
As preferably, described exhaust outlet is outward-dipping near the side of snail tongue, and angle of inclination is 10 to 60 degree, described exhaust outlet upwards, the open surfaces level of described exhaust outlet.Can ventilation efficiency be improved, and the particulate matter in spiral case, easily along with air motion, because particulate matter can deposit downwards, therefore in air-flow upwards, particulate matter is the most difficult to be driven, so exhaust outlet upwards, the particulate matter in air-out air-flow can be reduced, comparatively clean air draft air-flow is provided.
As preferably, described intake grill is provided with filtering screen.The partial impurities, the particulate matter that enter in spiral case gas can be filtered, reduce the particulate matter entered in spiral case.
Therefore, the invention has the beneficial effects as follows: (1) blade wear resistance is good, and service life of fan is long; (2) impurity in side runner, particulate matter not easily return into impeller cavity, and can enter accumulating tank and effectively collected; (3) noise is little, and ventilation efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of impeller of the present invention;
Fig. 3 is the structural representation of blade of the present invention.
In figure: exhaust outlet 1, wheel disc 2, blade 3, ceramic plate 4, anti-votex sheet 5, side runner 6, accumulating tank 7, relief portion 8, occlusion part 9, binder course 10, convex handle 11.
Embodiment
Below by embodiment, by reference to the accompanying drawings technological scheme of the present invention is described further:
A kind of wearable fan as shown in Figure 1, Figure 2, Figure 3 shows, comprise impeller, spiral case, described spiral case is provided with intake grill, exhaust outlet 1, snail tongue, described impeller comprises wheel disc 2, be located at some blades 3 on wheel disc 2, described blade 3 windward side, wheel disc 2 are provided with ceramic plate 4 on the surface, and described ceramic plate 4 is connected by binder course 10 with blade 3, wheel disc 2 surface.The particulate in air of working environment is more; during wheel rotation; blade 3 windward side, wheel disc 2 can be swiped, be clashed into particulate matter; paste ceramic layer thereon; can play a protective role, ceramic abrasive resistance is good, not easily damaged; and ceramic surface not easily attaching particles thing, therefore blade 3 can keep comparatively stable working state.In fact, the working environment that air particle is more, the normally place such as brick kiln, workshop, these are local also has common features to be exactly that temperature is higher than general environment outline, the expansion so blade 3 more easily heats up, in order to avoid blade 3 expands the factor such as impaired, select only to select to paste porcelain in blade 3 one side, enough deformation spaces can be left for blade 3, consider the contact frequent degree with air particle, select windward side to paste porcelain comparatively reasonable.Described blade 3 windward side is plane, ensures that ceramic plate 4 can be attached on blade 3 smoothly.Described blade 3 is provided with the anti-votex sheet 5 to side deviation, and described anti-votex sheet 5 the inner is provided with the convex handle 11 stretched in binder course 10, and the deviation direction of described anti-votex sheet 5 is contrary with wheel rotation direction.Convex handle 11 can be combined with binder course 10 preferably, ensures the join strength of anti-votex sheet 5.Described anti-votex sheet 5 is inner to be affixed with blade 3 and ceramic layer outer end, and anti-votex sheet 5 can be made up of materials such as rigid plastics, comparatively light, and not easily increases the added burden of impeller power source.Space in described spiral case comprise by blade 3 rotate the impeller cavity that formed through space, and the side runner 6 be affixed with impeller cavity, the snail tongue of circulation area on spiral case of described side runner 6 increases progressively to exhaust outlet 1.When the particulate matter in air enters in volute of blower, hit by blade 3, throw spiral case sidewall, wherein a part is rebounded or along with between air-flow backspace blade 3, is caused damage to blade 3 back side, and wherein part also can be attached to blade 3 back side, once attaching particles thing is too much on blade 3, will the dynamic balancing of heavy damage blower fan, even cause bearing to shake aggravation, destroy blower fan.And the deviation direction of anti-votex sheet 5 is contrary with wheel rotation direction; reduce air-flow outside impeller stroke range and particulate matter and return angle between impeller; namely reduce particulate matter and again enter possibility between blade 3; blade 3 is protected; simultaneously; the gas returned in impeller cavity can also be reduced, thus reduce the eddy current of blower interior, improve fan efficiency and operation stability.In spiral case, along snail tongue to exhaust outlet 1 direction, built up by the gas that impeller pushes in side runner 6, its mass flow rate is increasing, the snail tongue of circulation area on spiral case of side runner 6 increases progressively to exhaust outlet 1, can adapt to this rule, avoids air-flow in side runner 6 to accelerate excessively and to cause the gas flow of the impeller cavity that rebounds back excessive, affect fan efficiency, also prevent the particulate matter in air-flow from too much rebounding back between blade 3.Be provided with the accumulating tank 7 be communicated with spiral case bottom described spiral case, described accumulating tank 7 is provided with deashing door.Particulate matter in air and impurity, along with air-flow moves together in side runner 6, or thrown on spiral case wall by air-flow, finally all easily be deposited on bottom spiral case, and be provided with deashing groove, most of particulate matter can be made, impurity enters accumulating tank 7, only need timing, jack-up opens deashing door, exhaust particulate matter and impurity, just can easily remove the most of particulate matter in shell and impurity.Described accumulating tank 7 comprise two with the side of spiral case external frame contact of a curve, described lateral width is identical with Casing width, and described accumulating tank 7 and the Opening length of spiral case connectivity part are less than the spacing of adjacent blades 3 end.Thrown spiral case sidewall by impeller and taken to the air particle of spiral case sidewall by air-flow, identical at its velocity attitude instantly of contact spiral case sidewall with spiral case tangential direction, two sides and spiral case external frame contact of a curve, can make to be driven the air particle bottom spiral case directly to enter in accumulating tank 7 by air-flow, reduce it and return ratio in spiral case.And when clearing up particulate matter and dust stratification, even can stop the work of blower fan, only need open deashing door, blower fan automatically can the dust stratification in accumulating tank 7, particulate matter blowout.Described snail tongue is protruding towards exhaust outlet 1 near the part of exhaust outlet 1, forms a relief portion 8, and described snail tongue is protruding towards impeller away from the part of exhaust outlet 1, forms an occlusion part 9.Snail tongue be air draft air-flow be separated with from air draft air-flow a part again enter the point of division that spiral case carries out Inner eycle air-flow, relief portion 8 can reduce air draft retardance, effective raising ventilation efficiency, avoid tearing fast of this place's air-flow simultaneously, effective reduction noise, and occlusion part 9 can reduce the amount separating the air-flow again entered in spiral case from air draft air-flow, improve effective mass flow and the efficiency of blower fan.Described exhaust outlet 1 is outward-dipping near the side of snail tongue, angle of inclination be 10 to 45 degree, described exhaust outlet 1 upwards, the open surfaces level of described exhaust outlet 1.Can ventilation efficiency be improved, and the particulate matter in spiral case, easily along with air motion, because particulate matter can deposit downwards, therefore in air-flow upwards, particulate matter is the most difficult to be driven, so exhaust outlet 1 upwards, the particulate matter in air-out air-flow can be reduced, comparatively clean air draft air-flow is provided.Described intake grill is provided with filtering screen.The partial impurities, the particulate matter that enter in spiral case gas can be filtered, reduce the particulate matter entered in spiral case.
Claims (5)
1. a wearable fan, comprise impeller, spiral case, described spiral case is provided with intake grill, exhaust outlet (1), snail tongue, it is characterized in that, described impeller comprises wheel disc (2), be located at the some blades (3) on wheel disc (2), described blade (3) windward side, wheel disc (2) is provided with ceramic plate (4) on the surface, described ceramic plate (4) and blade (3), wheel disc (2) surface is connected by binder course (10), described blade (3) is provided with the anti-votex sheet (5) to side deviation, described anti-votex sheet (5) the inner is provided with the convex handle (11) stretched in binder course (10), the deviation direction of described anti-votex sheet (5) is contrary with wheel rotation direction, space in described spiral case comprise by blade (3) rotate the impeller cavity that formed through space, and the side runner (6) to be affixed with impeller cavity, the snail tongue of circulation area on spiral case of described side runner (6) increases progressively to exhaust outlet (1), the accumulating tank (7) be communicated with spiral case is provided with bottom described spiral case, described accumulating tank (7) is provided with deashing door, described accumulating tank (7) comprise two with the side of spiral case external frame contact of a curve, described lateral width is identical with Casing width, described accumulating tank (7) is less than the spacing of adjacent blades (3) end with the Opening length of spiral case connectivity part.
2. a kind of wearable fan according to claim 1, it is characterized in that, described snail tongue is protruding towards exhaust outlet (1) near the part of exhaust outlet (1), forms a relief portion (8), described snail tongue is protruding towards impeller away from the part of exhaust outlet (1), forms an occlusion part (9).
3. a kind of wearable fan according to claim 1, is characterized in that, described exhaust outlet (1) is outward-dipping near the side of snail tongue, and angle of inclination is 10 to 60 degree.
4. a kind of wearable fan according to claim 3, is characterized in that, described exhaust outlet (1) upwards, the open surfaces level of described exhaust outlet (1).
5. a kind of wearable fan according to claim 1, is characterized in that, described intake grill is provided with filtering screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238443.XA CN103629155B (en) | 2013-06-17 | 2013-06-17 | A kind of wearable fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238443.XA CN103629155B (en) | 2013-06-17 | 2013-06-17 | A kind of wearable fan |
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| CN103629155A CN103629155A (en) | 2014-03-12 |
| CN103629155B true CN103629155B (en) | 2015-11-18 |
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| CN201310238443.XA Active CN103629155B (en) | 2013-06-17 | 2013-06-17 | A kind of wearable fan |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107588042B (en) * | 2017-09-15 | 2022-03-04 | 奇鋐科技股份有限公司 | Fan blade structure and rotor set thereof |
| CN110159591B (en) * | 2019-05-30 | 2020-10-27 | 宁波方太厨具有限公司 | Volute tongue structure and centrifugal fan applying same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371373Y (en) * | 1999-05-09 | 2000-03-29 | 依凤鸣 | Special ceramic wear-resisting fan |
| CN102192169A (en) * | 2010-03-10 | 2011-09-21 | 台达电子工业股份有限公司 | Draught fan |
| CN203394849U (en) * | 2013-06-17 | 2014-01-15 | 余姚风机总厂 | Wear-resistant fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296193A (en) * | 1992-04-15 | 1993-11-09 | Sanyo Electric Co Ltd | Electric blower for cleaner |
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2013
- 2013-06-17 CN CN201310238443.XA patent/CN103629155B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371373Y (en) * | 1999-05-09 | 2000-03-29 | 依凤鸣 | Special ceramic wear-resisting fan |
| CN102192169A (en) * | 2010-03-10 | 2011-09-21 | 台达电子工业股份有限公司 | Draught fan |
| CN203394849U (en) * | 2013-06-17 | 2014-01-15 | 余姚风机总厂 | Wear-resistant fan |
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| CN103629155A (en) | 2014-03-12 |
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Address after: 315460 No. 9, Chezhan North West Road, Linshan Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Yuyao Fan General Factory Co.,Ltd. Address before: 315460 No. 9, Chezhan North West Road, Linshan Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Yuyao Fan General Factory |
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Effective date of registration: 20211221 Address after: 315400 No. 9, Chezhan North West Road, Linshan Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Bao Shi Jie environmental technology Co.,Ltd. Address before: 315460 No. 9, Chezhan North West Road, Linshan Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Yuyao Fan General Factory Co.,Ltd. |