CN204783830U - What blade was wedge, backplate for dish prevents laying dust fan - Google Patents
What blade was wedge, backplate for dish prevents laying dust fan Download PDFInfo
- Publication number
- CN204783830U CN204783830U CN201520570929.8U CN201520570929U CN204783830U CN 204783830 U CN204783830 U CN 204783830U CN 201520570929 U CN201520570929 U CN 201520570929U CN 204783830 U CN204783830 U CN 204783830U
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- dish
- casing
- backboard
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a what blade was wedge, backplate for dish prevents laying dust fan, including impeller and casing, the impeller includes impeller backplate, impeller panel and blade, and the blade arranges into that the impeller shaft is radial, centrosymmetric cavity wedge, and the impeller backplate be dish -shaped, cavity wedge blade is connected the impeller panel and is formed impeller body with the welding of saucer -shaped impeller backplate, the impeller panel is equipped with the air intake, the saucer -shaped impeller backplate passes through fix with rivet and connecting axle seat, and the axle bed coordinates with the fan axle through the shaft hole and is connected, the casing is equipped with air intake and air outlet, and casing appearance outline line gradually bursts at the seams, and the casing air intake is equipped with the apron. The utility model discloses design into the cavity wedge with the blade is ingenious, and the blade diameter of axle has realized the real -time clearance of dust to the centrosymmetric shape, has lengthened the life of equipment and can effectively stop the incident that the dust accumulation causes, the impeller is particularly suitable for and around the end plate distance big, the also big very much wide impeller fan use of delivery air volume.
Description
Technical field
The utility model relates to a kind of blower fan, specifically refers to the anti-laying dust blower fan that blade is wedge shape, backboard is dish.
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.
Model utility content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art exactly, provides a kind of simple and practical, the anti-laying dust blower fan that the blade of energy Automatic clearance dust is wedge shape, backboard is dish.
For overcoming the deficiencies in the prior art, the utility model takes following technological scheme:
The anti-laying dust blower fan that a kind of blade is wedge shape, backboard is dish, comprise draught fan impeller and casing, it is characterized in that: draught fan impeller comprises impeller backboard, impeller panel and blade, vane collocation becomes impeller shaft radial direction, centrosymmetric hollow wedge, and impeller backboard is dish; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with intake grill, dish-shaped 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 utility model, 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 utility model 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 common impeller backboard, the characteristics and advantages of dish impeller backboard is: when steel plate thickness is the same, dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Compared with prior art, the beneficial effects of the utility model are 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 utility model, 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 utility model.
Fig. 2 is paddle wheel plane structural representation of the present utility model.
Fig. 3 is impeller cross-sectional view of the present utility model.
In figure, each label represents:
1, Wedge blade; 2, impeller cylindrical; 3, impeller intake grill; 4, axle bed; 5, rivet; 6, axis hole; 7, dish-shaped 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 utility model is illustrated further.
As shown in Figure 1, Figure 2 and Figure 3 blade be wedge shape, backboard be dish anti-laying dust blower fan, comprise draught fan impeller 11 and casing 15, 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, and impeller backboard 7 is dish; Hollow wedge blade 1 connects impeller panel 8 and is welded to form impeller bodies with dish-shaped impeller backboard 7; Impeller panel 8 is provided with intake grill 3, dish-shaped 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 utility model, 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 utility model 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.
Compared with common impeller backboard, the characteristics and advantages of dish impeller backboard is: when steel plate thickness is the same, dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Above-mentioned just preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (3)
1. a blade is wedge shape, backboard is the anti-laying dust blower fan of dish, comprise draught fan impeller and casing, it is characterized in that: draught fan impeller comprises impeller backboard, impeller panel and blade, vane collocation becomes impeller shaft radial direction, centrosymmetric hollow wedge, and impeller backboard is dish; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with intake grill, dish-shaped 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. according to claim 1 blade be wedge shape, backboard be dish anti-laying dust blower fan, it is characterized in that: described casing is fixed on support.
3. according to claim 1 or 2 blade be wedge shape, backboard be dish anti-laying dust blower fan, 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 |
|---|---|---|---|
| CN201520570929.8U CN204783830U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570929.8U CN204783830U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783830U true CN204783830U (en) | 2015-11-18 |
Family
ID=54523886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520570929.8U Expired - Fee Related CN204783830U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020151A (en) * | 2015-08-03 | 2015-11-04 | 吉首大学 | Dirt retention prevention draught fan with wedge-shaped blades and disc-shaped back plate |
-
2015
- 2015-08-03 CN CN201520570929.8U patent/CN204783830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020151A (en) * | 2015-08-03 | 2015-11-04 | 吉首大学 | Dirt retention prevention draught fan with wedge-shaped blades and disc-shaped back plate |
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 | |
| CN204783829U (en) | Blade is of drop shape laying dust fan of preventing of turning over | |
| CN204783830U (en) | What blade was wedge, backplate for dish prevents laying dust fan | |
| CN204783846U (en) | Blade is of drop shape for turning over, laying dust fan is prevented for dish to backplate | |
| CN204783734U (en) | Blade is wedge -form laying dust fan of preventing | |
| CN105066653A (en) | Heat pump type tail heat recovery and penetrating counterflow fluidized drying machine | |
| CN105020984A (en) | Hot-air drying machine capable of utilizing waste heat and achieving penetrating countercurrent fluidization | |
| CN105003927A (en) | Tail heat recovery and dust removal integrated coal-fired boiler | |
| CN105020727A (en) | Tail heat utilization and dust removal integrated coal fired boiler | |
| CN105021007A (en) | Heat pump type drying machine capable of utilizing waste heat and achieving penetrating countercurrent | |
| CN105066642A (en) | Heat pump type exhaust heat utilization counterflow dryer | |
| CN204783824U (en) | Blade is of drop shape for turning over, laying dust fan wheel is prevented for dish to backplate | |
| CN204783826U (en) | What blade was wedge, backplate for dish prevents laying dust fan wheel | |
| CN104989671A (en) | Anti-dust accumulation fan with wedge-shaped blades | |
| CN204816834U (en) | Fan is raymond mill device of laying dust not | |
| CN204783825U (en) | Blade is wedge -form laying dust fan wheel that prevents | |
| CN105066627A (en) | Tail heat recovery screen mesh plate turning type drying machine | |
| CN204829971U (en) | Tail heat recovery dust removal integral type coal fired boiler | |
| CN204841604U (en) | Chemical combination air exhaust device of manganese ore fines and sulphuric acid reaction | |
| CN204816835U (en) | Fan is raymond mill device of laying dust not | |
| CN105020151A (en) | Dirt retention prevention draught fan with wedge-shaped blades and disc-shaped back plate | |
| CN104963896A (en) | Dirt retention prevention draught fan with reverse-drop-shaped blades and disk-shaped back plate | |
| CN105135826A (en) | Tail heat recovery hot wind type penetration countercurrent fluidized dryer | |
| CN104963891A (en) | Dirt retention prevention draught fan impeller with wedge-shaped blades and disk-shaped back plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180803 |