CN104989671A - Anti-dust accumulation fan with wedge-shaped blades - Google Patents
Anti-dust accumulation fan with wedge-shaped blades Download PDFInfo
- Publication number
- CN104989671A CN104989671A CN201510464831.9A CN201510464831A CN104989671A CN 104989671 A CN104989671 A CN 104989671A CN 201510464831 A CN201510464831 A CN 201510464831A CN 104989671 A CN104989671 A CN 104989671A
- Authority
- CN
- China
- Prior art keywords
- impeller
- fan
- wedge
- blades
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an anti-dust accumulation fan with wedge-shaped blades. The anti-dust accumulation fan comprises an impeller and a shell; the impeller comprises an impeller backplane, an impeller face panel and the blades; the blades are set to hollow wedge-shaped blades; the axes of the blades are in radial and central symmetry; the hollow wedge-shaped blades are connected with the impeller face panel and are welded to the impeller backplane, so that an impeller main body can be formed; the impeller face panel is provided with an air inlet; the impeller backplane is fixed through a rivet and is connected with a shaft seat; the shaft seat is in matched connection with a fan shaft through a shaft hole; the shell is provided with an air inlet and an air outlet; the outline of the shell is in the shape of an involute; and the air inlet of the shell is provided with a cover plate. According to the anti-dust accumulation fan with the wedge-shaped blades, the blades are ingeniously designed into the wedge-shaped blades; the axes of the blades are in radial and central symmetry; and therefore, real-time cleaning of dust can be realized, and the service life of equipment can be prolonged, and safety accidents caused by dust accumulation can be effectively prevented. The anti-dust accumulation fan is especially suitable for being adopted as a large-conveying airflow wide-impeller fan with an impeller provided with large-spacing front and rear end plates.
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 wedge shape.
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 wedge shape.
For overcoming the deficiencies in the prior art, the present invention takes following technological scheme:
Blade is an anti-laying dust blower fan for wedge shape, 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, centrosymmetric hollow wedge; Hollow wedge blade 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.
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 hollow wedge, 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 hollow wedge, 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 hollow wedge, 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.
Blade ingehious design is become hollow wedge 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, Wedge 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 wedge shape 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, centrosymmetric hollow wedge; Hollow wedge blade 1 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.
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 hollow wedge, 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 (3)
1. blade is an anti-laying dust blower fan for wedge shape, 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, centrosymmetric hollow wedge; Hollow wedge blade 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 wedge shape according to claim 1, it is characterized in that: described casing is fixed on support.
3. according to claim 1 or 2, blade is the anti-laying dust blower fan of wedge shape, 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 |
|---|---|---|---|
| CN201510464831.9A CN104989671A (en) | 2015-08-03 | 2015-08-03 | Anti-dust accumulation fan with wedge-shaped blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464831.9A CN104989671A (en) | 2015-08-03 | 2015-08-03 | Anti-dust accumulation fan with wedge-shaped blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104989671A true CN104989671A (en) | 2015-10-21 |
Family
ID=54301533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464831.9A Pending CN104989671A (en) | 2015-08-03 | 2015-08-03 | Anti-dust accumulation fan with wedge-shaped blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545826A (en) * | 2016-02-25 | 2016-05-04 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with safety net |
| CN110953188A (en) * | 2019-11-12 | 2020-04-03 | 健龙(海宁)机械工业有限公司 | Partial flow passage centrifugal impeller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR551607A (en) * | 1921-08-30 | 1923-04-10 | Anciens Etablissements Grouvel | Blade for centrifugal fan impeller |
| JPS4962206U (en) * | 1972-09-08 | 1974-05-31 | ||
| SU889899A1 (en) * | 1980-03-31 | 1981-12-15 | Запорожский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Автомобильный Завод "Коммунар" | Fan impeller |
| CN1405952A (en) * | 2001-09-12 | 2003-03-26 | 株式会社东芝 | Fully-closed external-cooling type electric motor |
| JP2015095962A (en) * | 2013-11-12 | 2015-05-18 | 株式会社東芝 | Rotary machine |
| CN204783734U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is wedge -form laying dust fan of preventing |
-
2015
- 2015-08-03 CN CN201510464831.9A patent/CN104989671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR551607A (en) * | 1921-08-30 | 1923-04-10 | Anciens Etablissements Grouvel | Blade for centrifugal fan impeller |
| JPS4962206U (en) * | 1972-09-08 | 1974-05-31 | ||
| SU889899A1 (en) * | 1980-03-31 | 1981-12-15 | Запорожский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Автомобильный Завод "Коммунар" | Fan impeller |
| CN1405952A (en) * | 2001-09-12 | 2003-03-26 | 株式会社东芝 | Fully-closed external-cooling type electric motor |
| JP2015095962A (en) * | 2013-11-12 | 2015-05-18 | 株式会社東芝 | Rotary machine |
| CN204783734U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is wedge -form laying dust fan of preventing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545826A (en) * | 2016-02-25 | 2016-05-04 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with safety net |
| CN110953188A (en) * | 2019-11-12 | 2020-04-03 | 健龙(海宁)机械工业有限公司 | Partial flow passage centrifugal impeller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105066157A (en) | Tail gas recovery dust removal type coal-fired boiler | |
| CN204853526U (en) | Tail heat utilization dust removal integral type coal fired boiler | |
| CN104989671A (en) | Anti-dust accumulation fan with wedge-shaped blades | |
| CN105013598A (en) | Raymond mill system with draught fan free of dust retention | |
| CN105020728A (en) | Tail heat utilization and dust removal integrated coil-fired boiler | |
| CN204783829U (en) | Blade is of drop shape laying dust fan of preventing of turning over | |
| CN105020984A (en) | Hot-air drying machine capable of utilizing waste heat and achieving penetrating countercurrent fluidization | |
| CN204783734U (en) | Blade is wedge -form laying dust fan of preventing | |
| CN105066642A (en) | Heat pump type exhaust heat utilization counterflow dryer | |
| CN105021007A (en) | Heat pump type drying machine capable of utilizing waste heat and achieving penetrating countercurrent | |
| CN204783830U (en) | What blade was wedge, backplate for dish prevents laying dust fan | |
| CN105003927A (en) | Tail heat recovery and dust removal integrated coal-fired boiler | |
| CN105020727A (en) | Tail heat utilization and dust removal integrated coal fired boiler | |
| CN204816834U (en) | Fan is raymond mill device of laying dust not | |
| CN204783846U (en) | Blade is of drop shape for turning over, laying dust fan is prevented for dish to backplate | |
| CN204816835U (en) | Fan is raymond mill device of laying dust not | |
| CN105056870A (en) | Combination exhausting system adopting reaction of manganese ore powder and sulfuric acid | |
| CN104963892A (en) | Dirt retention prevention draught fan with reverse-drop-shaped blades | |
| CN105020151A (en) | Dirt retention prevention draught fan with wedge-shaped blades and disc-shaped back plate | |
| CN105066627A (en) | Tail heat recovery screen mesh plate turning type drying machine | |
| CN104998744A (en) | Raymond mill device provided with fan capable of preventing dust accumulation | |
| CN204841604U (en) | Chemical combination air exhaust device of manganese ore fines and sulphuric acid reaction | |
| CN105135826A (en) | Tail heat recovery hot wind type penetration countercurrent fluidized dryer | |
| CN204783825U (en) | Blade is wedge -form laying dust fan wheel that prevents | |
| CN204829971U (en) | Tail heat recovery dust removal integral type coal fired boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151021 |
|
| WD01 | Invention patent application deemed withdrawn after publication |