CN104963890A - Dirt retention prevention draught fan impeller with reverse-drop-shaped blades - Google Patents
Dirt retention prevention draught fan impeller with reverse-drop-shaped blades Download PDFInfo
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- CN104963890A CN104963890A CN201510464712.3A CN201510464712A CN104963890A CN 104963890 A CN104963890 A CN 104963890A CN 201510464712 A CN201510464712 A CN 201510464712A CN 104963890 A CN104963890 A CN 104963890A
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- impeller
- drop
- draught fan
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- blade
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Abstract
The invention discloses a dirt retention prevention draught fan impeller with reverse-drop-shaped blades. The dirt retention prevention draught fan impeller with the reverse-drop-shaped blades comprises an impeller back plate, an impeller panel and the blades, and the blades are arranged to be in a hollow reverse-drop shape symmetric about the radial direction and center of an impeller shaft; the hollow reverse-drop-shaped blades are connected with the impeller panel and welded to the impeller back plate to form an impeller body; an air inlet is formed in the impeller panel, the impeller back plate is fixed and connected with a shaft base through rivets, and the shaft base is connected with a draught fan shaft through a shaft hole in a matched mode. When the dirt retention prevention draught fan impeller with the reverse-drop-shaped blades is used, since the blade is designed to be in a hollow reverse-drop shape with blade shafts centrosymmetric in the radial directions, during high-speed rotating, the centrifuge self-cleaning function of the surfaces of the blades is achieved under the centrifugal force function, dirt is subjected to the centrifugal force function and can not be attached to the blades, dirt retention can not occur, and the dirt retention prevention draught fan impeller with the reverse-drop-shaped blades is particularly suitable for wide impeller large draught fans that the distance between a front end plate and a rear end plate of each impeller is large, namely, the thickness of the impeller is very large, and the transporting air flow is also particularly large.
Description
Technical field
The present invention relates to a kind of draught fan impeller, specifically refer to that blade is the anti-laying dust draught fan impeller of anti-water-drop-shaped.
Background technique
Blower fan is the power equipment carrying out gas conveying; have and apply extremely widely; but all contain certain dust in the air-flow of most of use occasion; during blower fan work; air-flow by during the draught fan impeller of High Rotation Speed due to centrifugation, dust granule can depart from air-flow phase and deposit and be attached on draught fan impeller.
Because the rotating speed of draught fan impeller is general all higher, as long as there is micro-dust to exist in air-flow, all more dust can be accumulated after working long hours, thus change the balance of draught fan impeller rotation, if draught fan impeller does not have self purification not clear up in time to dust yet, will cumulative and progressively change draught fan impeller Static and dynamic balance, thus produce vibration.Have the dust that part hardens to be come off by vibration once run into, will balance away from the dynamic rotary of blower fan immediately, then produce judder, this may cause serious personnel and device security accident.
Therefore, if can a kind of draught fan impeller be designed, Automatic clearance can be carried out and just do not worry causing dust accumulation, for keeping the reliable and stable work of blower fan and stopping the meaning that security incident all has particular importance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, provides a kind of simple and practical, and the blade of energy Automatic clearance dust is the anti-laying dust draught fan impeller of anti-water-drop-shaped.
For overcoming the deficiencies in the prior art, the present invention takes following technological scheme:
Blade is an anti-laying dust draught fan impeller for anti-water-drop-shaped, comprises impeller backboard, impeller panel and blade, it is characterized in that: vane collocation becomes impeller shaft radial direction, the anti-water-drop-shaped of centrosymmetric hollow; The anti-water-drop-shaped blade of hollow connects impeller panel and is welded to form impeller bodies with impeller backboard; Impeller panel is provided with intake grill, impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft.
The anti-water-drop-shaped blade of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
When draught fan impeller of the present invention uses, because blade design becomes the anti-water-drop-shaped of hollow, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static equilibrium of impeller would not be affected like this, more can not accumulate dust; The technological scheme of this blade structure, be particularly suitable for end plate distance before and after impeller large, namely impeller thickness is large especially, and the required delivery air amount also large blower fan of king-sized wide impeller adopts.
Compared with prior art, beneficial effect of the present invention is also:
Blade design becomes the anti-water-drop-shaped of hollow, and sharf radial center is symmetrical, and the blower fan backboard making it connect and the anti-relative torsion of panel, to extrude rigidity extremely strong, can stop to use the fan blade caused to connect the fracture of backboard root for a long time.
Blade design becomes the anti-water-drop-shaped of hollow, and sharf radial center is symmetrical, even also can obtain higher intensity with thinner board making draught fan impeller, ensures to stablize, reliably use, can save material, be convenient to make, be also conducive to light and handyization of equipment.
The anti-water-drop-shaped blade of hollow has streamline profile, and blade air steadily skimming over property is fabulous, so fan operation noise is little especially, improves working environment.
Blade ingehious design is become the anti-water-drop-shaped of hollow by the present invention, and the shape of sharf radial center symmetry, achieve the real-time cleaning of dust, extend the security incident also effectively stopping dust accumulation initiation working life of equipment, have a extensive future.
Accompanying drawing explanation
Fig. 1 is plane structure schematic diagram of the present invention.
Fig. 2 is cross-sectional view of the present invention.
In figure, each label represents:
1, anti-water-drop-shaped blade; 2, impeller cylindrical; 3, impeller intake grill; 4, axle bed; 5, rivet; 6, axis hole; 7, impeller backboard; 8, impeller panel.
Embodiment
Now by reference to the accompanying drawings, the present invention is illustrated further.
Blade is the anti-laying dust draught fan impeller of anti-water-drop-shaped as depicted in figs. 1 and 2, comprises impeller backboard 7, impeller panel 8 and blade 1, and blade 1 is arranged to impeller shaft radial direction, the anti-water-drop-shaped of centrosymmetric hollow; The anti-water-drop-shaped blade 1 of hollow connects impeller panel 8 and is welded to form impeller bodies with impeller backboard 7; Impeller panel 8 is provided with intake grill 3, impeller backboard 7 by the fixing also connection shaft seat 4 of rivet 5, and axle bed 4 is connected by axis hole 6 and fan shaft.
The anti-water-drop-shaped blade 1 of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
When this draught fan impeller uses, because blade design becomes the anti-water-drop-shaped of hollow, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static equilibrium of impeller would not be affected like this, more can not accumulate dust; The technological scheme of this blade structure, be particularly suitable for end plate distance before and after impeller large, namely impeller thickness is large especially, and the required delivery air amount also large blower fan of king-sized wide impeller adopts.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (2)
1. blade is an anti-laying dust draught fan impeller for anti-water-drop-shaped, comprises impeller backboard, impeller panel and blade, it is characterized in that: vane collocation becomes impeller shaft radial direction, the anti-water-drop-shaped of centrosymmetric hollow; The anti-water-drop-shaped blade of hollow connects impeller panel and is welded to form impeller bodies with impeller backboard; Impeller panel is provided with intake grill, impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft.
2. blade is the anti-laying dust draught fan impeller of anti-water-drop-shaped according to claim 1, it is characterized in that: the anti-water-drop-shaped blade of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464712.3A CN104963890A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan impeller with reverse-drop-shaped blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464712.3A CN104963890A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan impeller with reverse-drop-shaped blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963890A true CN104963890A (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464712.3A Pending CN104963890A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan impeller with reverse-drop-shaped blades |
Country Status (1)
| Country | Link |
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| CN (1) | CN104963890A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412783A (en) * | 1981-10-08 | 1983-11-01 | Thermo King Corporation | Centrifugal fan wheel with changeable pitch blades |
| CN2069501U (en) * | 1990-04-29 | 1991-01-16 | 重庆钢都机修厂 | Vane wheel for big centrifugal blower |
| CN2089992U (en) * | 1991-02-07 | 1991-12-04 | 王兴亚 | Hollow vane with ash removing groove |
| SU1703861A1 (en) * | 1985-08-02 | 1992-01-07 | Предприятие П/Я М-5343 | Centrifugal blower impeller |
| CN2893252Y (en) * | 2006-03-16 | 2007-04-25 | 杭州奥普电器有限公司 | Centrifugal wind wheel |
| CN201650860U (en) * | 2009-10-29 | 2010-11-24 | 福建南方路面机械有限公司 | Draught fan impeller mechanism for bitumen regeneration facility |
| CN201660841U (en) * | 2010-04-26 | 2010-12-01 | 河南省高远公路养护设备有限公司 | Extraction fan of dust collector for road and bridge surface shot blasting shaper |
-
2015
- 2015-08-03 CN CN201510464712.3A patent/CN104963890A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412783A (en) * | 1981-10-08 | 1983-11-01 | Thermo King Corporation | Centrifugal fan wheel with changeable pitch blades |
| SU1703861A1 (en) * | 1985-08-02 | 1992-01-07 | Предприятие П/Я М-5343 | Centrifugal blower impeller |
| CN2069501U (en) * | 1990-04-29 | 1991-01-16 | 重庆钢都机修厂 | Vane wheel for big centrifugal blower |
| CN2089992U (en) * | 1991-02-07 | 1991-12-04 | 王兴亚 | Hollow vane with ash removing groove |
| CN2893252Y (en) * | 2006-03-16 | 2007-04-25 | 杭州奥普电器有限公司 | Centrifugal wind wheel |
| CN201650860U (en) * | 2009-10-29 | 2010-11-24 | 福建南方路面机械有限公司 | Draught fan impeller mechanism for bitumen regeneration facility |
| CN201660841U (en) * | 2010-04-26 | 2010-12-01 | 河南省高远公路养护设备有限公司 | Extraction fan of dust collector for road and bridge surface shot blasting shaper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |