CN104963892A - Dirt retention prevention draught fan with reverse-drop-shaped blades - Google Patents
Dirt retention prevention draught fan with reverse-drop-shaped blades Download PDFInfo
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- CN104963892A CN104963892A CN201510464747.7A CN201510464747A CN104963892A CN 104963892 A CN104963892 A CN 104963892A CN 201510464747 A CN201510464747 A CN 201510464747A CN 104963892 A CN104963892 A CN 104963892A
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- impeller
- drop
- draught fan
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Abstract
The invention discloses a dirt retention prevention draught fan with reverse-drop-shaped blades. The dirt retention prevention draught fan with the reverse-drop-shaped blades comprises an impeller and a machine shell, wherein the impeller 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; an air inlet and an air outlet are formed in the machine shell, the contour line of the machine shell is an involute, and the air inlet of the machine shell is provided with a cover plate. According to the dirt retention prevention draught fan with the reverse-drop-shaped blades, the blades are ingeniously designed to be in the hollow reverse-drop shape with blade shafts centrosymmetric in the radial direction, dust is cleared away in real time, the service life of the draught fan is prolonged, security accidents caused by dirt retention can be effectively eradicated, and the dirt retention prevention draught fan is particularly suitable for use of wide-impeller large draught fans, the distance between a front end plate and a rear end plate of each impeller is large, and the transporting air flow is also particularly large.
Description
Technical field
The present invention relates to a kind of blower fan, specifically refer to that blade is the anti-laying dust blower fan 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 blower fan 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 blower fan 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 blower fan for anti-water-drop-shaped, comprises draught fan impeller and casing, it is characterized in that: draught fan impeller comprises impeller backboard, impeller panel and blade, and 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; Casing is provided with intake grill and exhaust outlet, cabinet form profile line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet, line radius strengthens gradually with involute circle, terminate outside shell air outlet, shell air outlet width equals involute circumference; Shell air inlet is provided with cover plate, cover plate also has intake grill be convenient to connecting tube, and axle center and impeller axis coinciding.
The anti-water-drop-shaped blade of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
Described casing is fixed on support.
Described shell air inlet cover plate is bolted to connection casing, and can dismantle.
Casing fixed by support of the present invention, casing plays sealing process, intake grill air inlet obtains kinetic energy by vane rotary, and transformation of energy is carried out in casing, part kinetic energy is converted to the static energy of gas, make output gas flow have speed dynamic head like this and also have static pressure head, both sums are exactly blower press.
Shell air inlet can connect airduct according to need, intake grill cover plate is detachable, be bolted to connection casing, the scroll casing shape profile of casing meets the needs that Fan casing is airtight, conveying gas realizes energy efficient conversion simultaneously, makes output gas flow can reach required flow and total head.
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 paddle wheel plane structural representation of the present invention.
Fig. 3 is impeller 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; 11, impeller; 12, shell air inlet; 13, involute circle; 14, support; 15, casing; 16, shell air inlet cover plate; 17, shell air outlet; A, shell air outlet width.
Embodiment
Now by reference to the accompanying drawings, the present invention is illustrated further.
Blade is the anti-laying dust blower fan of anti-water-drop-shaped as shown in Figure 1, Figure 2 and Figure 3, comprises draught fan impeller 11 and casing 15, and draught fan impeller 11 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; Casing 15 is provided with intake grill 12 and exhaust outlet 17, cabinet form profile line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet 17, line radius strengthens gradually with involute circle 13, terminate outside shell air outlet 17, shell air outlet width A equals involute circle 13 girths; Shell air inlet 12 is provided with cover plate 16, cover plate also has intake grill be convenient to connecting tube, and axle center and impeller axis coinciding.
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.
Described casing 15 is fixed on support 14.
Described shell air inlet cover plate 16 is bolted to connection casing 15, and can dismantle.
Casing 15 fixed by support 14 of the present invention, casing 15 plays sealing process, intake grill 12 air inlet is rotated by impeller 11 and obtains kinetic energy, and transformation of energy is carried out in casing 15, part kinetic energy is converted to the static energy of gas, make output gas flow have speed dynamic head like this and also have static pressure head, both sums are exactly blower press.
Shell air inlet 12 can connect airduct according to need, intake grill cover plate 16 is detachable, be bolted to connection casing 15, the scroll casing shape profile of casing 15 meets the needs that Fan casing is airtight, conveying gas realizes energy efficient conversion simultaneously, makes output gas flow can reach required flow and total head.
When draught fan impeller of the present invention uses, because blade 1 is designed to 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 11 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 (4)
1. blade is an anti-laying dust blower fan for anti-water-drop-shaped, comprises draught fan impeller and casing, it is characterized in that: draught fan impeller comprises impeller backboard, impeller panel and blade, and 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; Casing is provided with intake grill and exhaust outlet, cabinet form profile line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet, line radius strengthens gradually with involute circle, terminate outside shell air outlet, shell air outlet width equals involute circumference; Shell air inlet is provided with cover plate, cover plate also has intake grill be convenient to connecting tube, and axle center and impeller axis coinciding.
2. blade is the anti-laying dust blower fan 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.
3. according to claim 1 or 2, blade is the anti-laying dust blower fan of anti-water-drop-shaped, it is characterized in that: described casing is fixed on support.
4. blade is the anti-laying dust blower fan of anti-water-drop-shaped according to claim 3, it is characterized in that: described shell air inlet cover plate is bolted to connection casing, and can dismantle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464747.7A CN104963892A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan with reverse-drop-shaped blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464747.7A CN104963892A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan with reverse-drop-shaped blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963892A true CN104963892A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464747.7A Pending CN104963892A (en) | 2015-08-03 | 2015-08-03 | Dirt retention prevention draught fan with reverse-drop-shaped blades |
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| CN (1) | CN104963892A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR551607A (en) * | 1921-08-30 | 1923-04-10 | Anciens Etablissements Grouvel | Blade for centrifugal fan impeller |
| SU889899A1 (en) * | 1980-03-31 | 1981-12-15 | Запорожский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Автомобильный Завод "Коммунар" | Fan impeller |
| DE3236807A1 (en) * | 1981-10-08 | 1983-04-21 | Thermo King Corp., 55420 Minneapolis, Minn. | "CENTRIFUGAL BLOWING WHEEL WITH ADJUSTABLE BLADES" |
| JPS61187597A (en) * | 1985-02-14 | 1986-08-21 | Nippon Kikai Gijutsu Kk | Impeller for blower |
| CN1042590A (en) * | 1988-10-05 | 1990-05-30 | 巴特里沙·卢蒙巴人民友好大学 | Radial flow fan |
| CN2089992U (en) * | 1991-02-07 | 1991-12-04 | 王兴亚 | Hollow vane with ash removing groove |
| CN2718289Y (en) * | 2003-11-04 | 2005-08-17 | 陈阳宝 | Centrifugal fan without tapered vanes |
| CN200943601Y (en) * | 2006-08-22 | 2007-09-05 | 西安市华信风机制造有限公司 | Vane of centrifugal ventilation machine |
| JP2008115790A (en) * | 2006-11-06 | 2008-05-22 | Fuji Electric Fa Components & Systems Co Ltd | Rotating machine |
| CN202187955U (en) * | 2011-09-07 | 2012-04-11 | 浙江华夏杰高分子建材有限公司 | Bilaterally rotating tubular wind wheel |
| CN202883471U (en) * | 2012-11-23 | 2013-04-17 | 江门凯信科技实业有限公司 | Energy-saving, noise-reduction and heat-dissipation fan impeller for motor |
| CN204783829U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is of drop shape laying dust fan of preventing of turning over |
-
2015
- 2015-08-03 CN CN201510464747.7A patent/CN104963892A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR551607A (en) * | 1921-08-30 | 1923-04-10 | Anciens Etablissements Grouvel | Blade for centrifugal fan impeller |
| SU889899A1 (en) * | 1980-03-31 | 1981-12-15 | Запорожский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Автомобильный Завод "Коммунар" | Fan impeller |
| DE3236807A1 (en) * | 1981-10-08 | 1983-04-21 | Thermo King Corp., 55420 Minneapolis, Minn. | "CENTRIFUGAL BLOWING WHEEL WITH ADJUSTABLE BLADES" |
| JPS61187597A (en) * | 1985-02-14 | 1986-08-21 | Nippon Kikai Gijutsu Kk | Impeller for blower |
| CN1042590A (en) * | 1988-10-05 | 1990-05-30 | 巴特里沙·卢蒙巴人民友好大学 | Radial flow fan |
| CN2089992U (en) * | 1991-02-07 | 1991-12-04 | 王兴亚 | Hollow vane with ash removing groove |
| CN2718289Y (en) * | 2003-11-04 | 2005-08-17 | 陈阳宝 | Centrifugal fan without tapered vanes |
| CN200943601Y (en) * | 2006-08-22 | 2007-09-05 | 西安市华信风机制造有限公司 | Vane of centrifugal ventilation machine |
| JP2008115790A (en) * | 2006-11-06 | 2008-05-22 | Fuji Electric Fa Components & Systems Co Ltd | Rotating machine |
| CN202187955U (en) * | 2011-09-07 | 2012-04-11 | 浙江华夏杰高分子建材有限公司 | Bilaterally rotating tubular wind wheel |
| CN202883471U (en) * | 2012-11-23 | 2013-04-17 | 江门凯信科技实业有限公司 | Energy-saving, noise-reduction and heat-dissipation fan impeller for motor |
| CN204783829U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is of drop shape laying dust fan of preventing of turning over |
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| 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 |