CN106382239A - Anti-adhesion centrifugal ventilation machine - Google Patents
Anti-adhesion centrifugal ventilation machine Download PDFInfo
- Publication number
- CN106382239A CN106382239A CN201610899085.0A CN201610899085A CN106382239A CN 106382239 A CN106382239 A CN 106382239A CN 201610899085 A CN201610899085 A CN 201610899085A CN 106382239 A CN106382239 A CN 106382239A
- Authority
- CN
- China
- Prior art keywords
- adhesion
- impeller
- centrifugal fan
- casing
- air inlet
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of draught fans, in particular to an anti-adhesion centrifugal ventilation machine. The anti-adhesion centrifugal ventilation machine comprises a machine shell, an impeller, an air inlet, a front cover plate mechanism and a transmission mechanism; the impeller comprises 14 backward plate-shaped blades, a conical wheel cover, a flat plate wheel disc and a hub; the blades are evenly distributed along the circumference, and welded between the wheel cover and the wheel disc, and the blades and the hub are assembled and molded; the air inlet is formed by welding of plates, and the molded line of the air inlet is in a conical arc shape converged in the axial direction; the machine is scientific and reasonable in structural design, and the anti-adhesion centrifugal ventilation machine which is reliable in performance solves the impeller dust adhesion problem; the market vacancy is filled up, the service life of the impeller can be prolonged, and the machine is efficient and energy-saving; the impeller comprises the backward plate-shaped blades, and therefore the running point of the ventilation machine is away from the turbulent region, and an electric motor is not prone to overloading. Through optimizing the flow passing portion size, the inlet corners of the determined blades meet the actual air flow flowing direction, and blade inlets are minimum in loss.
Description
Technical field
Patent of the present invention relates to blower fan technical field and in particular to a kind of anti-adhesion centrifugal fan.
Background technology
As a kind of typical turbomachine, it is that the mechanical energy of prime mover is converted into and is conveyed by a class to centrifugal fan
Gas kinetic energy and the fluid machinery of pressure energy, can be widely applied to coal dust firing, Aero-Space, Environmental-protecting dust-removing, air conveying etc.
Occasion.At present, existing product occurs in that a lot of impeller dust adhesion during the use of the industries such as cement, chemical industry, steel-making
Phenomenon.Dust adhesion is easily destroyed dynamic balance of impeller, causes blower fan high vibration, cause the user greater loss.Trace it to its cause,
On the one hand be due to impeller work work condition environment excessively badly, be on the other hand due to temporarily no suitable at present in industry
Caused by being applied to the efficient centrifugal ventilation blower of this kind of anti-adhesion operating mode.
When the fluid containing solid particle passes through turbomachine as working media, will by the solid particle of fluid carry-over
Abrasive action is produced to the solid wall surface being flowed through, serious abrasion will make flow passage components pierce and deform, and deteriorate in blower fan
Flow behavior.At present, when the blower fan to this kind of easy-adhesion operating mode carries out type selecting, the fan condition design parameter designed is complete
Entirely meet user to require, but the blade exit established angle of optional Stage, blade pattern etc. all easily cause dust adhesion,
If force the structures such as change blade exit established angle, blade pattern, large effect can be produced to fan performance.Therefore, if
Counting this anti-dust adhesion centrifugal fan is significantly.
Content of the invention
The present invention is directed to the deficiencies in the prior art, provides a kind of anti-adhesion centrifugal fan of dependable performance to solve impeller
The problem of dust adhesion, has not only filled up the market vacancy, also extends the service life of impeller, energy-efficient.
The technical scheme is that and be achieved in that：This anti-adhesion centrifugal fan include casing, impeller, air inlet,
Front shroud mechanism and drive mechanism it is characterised in that：Described impeller includes 14 backward plate vanes, taper wheel cap, plate shaped
Wheel disc and wheel hub；Described blade is uniformly distributed along the circumference, and it is welded between wheel cap and wheel disc, and with wheel hub molding assembly；Air inlet
It is welded by sheet material, its molded line is the cone arc restrained vertically.
The volute body that described casing is welded for sheet material, the scroll casing shape cover plate that front shroud mechanism is welded for sheet material.
Described impeller blade outlet diameter is 1000mm, and inlet diameter is 390mm, and width is 126mm, and exit width is
33.4mm, outlet blade angle is 50 °.
The inlet diameter of described air inlet is 524mm, highly for 200mm.
The inlet diameter of described front shroud mechanism is 560mm, highly for 183mm.
Described casing width 136mm, casing outlet center to casing center be 604.4mm, casing outlet be 310mm ×
136mm.
Described anti-adhesion centrifugal fan efficient operating point zero dimension performance parameter be：During without inlet box, flow system
Number 0.037, pressure coefficient 0.6, fan efficiency 82.01%.
Described impeller, air inlet, front shroud mechanism, casing by above-mentioned size, zoom in or out on year-on-year basis make series product
Product.
The present invention solves defect present in background technology, has the advantages that：
The present invention provides a kind of anti-adhesion centrifugal fan of dependable performance to solve the problems, such as impeller dust adhesion, not only
Fill up the market vacancy, also extend the service life of impeller, energy-efficient.By impeller is set to backward plate vane, therefore
Fan operation point is away from turbulent area, and motor is difficult to transship.By optimize flow passage component size, determined by vane inlet
Angle meets actual airflow flow direction, vane inlet loss reduction, and the anti-adhesive capacity of blade is strong, can extend the use longevity of impeller
Life.There is compared with similar blower fan optimal aeroperformance, with its efficient, low noise, region residing for zero dimension performance and enter
The little advantage of mouth loss, this centrifugal fan discharge coefficient 0.037, pressure coefficient 0.6, fan efficiency 82.01%, have efficiently
The low feature of energy-conservation, high efficient district width, noise.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the left view schematic diagram of Fig. 1；
Fig. 3 is the structural representation of air inlet in Fig. 1；
Fig. 4 is the structural representation of impeller in Fig. 1；
Fig. 5 is that the right side of Fig. 3 regards schematic diagram；
Fig. 6 is the zero dimensional performance curve figure of the present invention anti-adhesion centrifugal fan；
In figure：1- casing, 2- impeller, 3- air inlet, 4- front shroud mechanism, 5- drive mechanism, 6- wheel cap, 7- wheel disc, 8-
Wheel hub, 9- blade, φ-discharge coefficient, ψ-pressure coefficient, η r- fan efficiency.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Anti- adhesion centrifugal fan as shown in Figure 1, Figure 2 and Figure 3, anti-adhesion centrifugal fan include casing 1, impeller 2,
Air inlet 3, front shroud mechanism 4 and drive mechanism 5.Air inlet 3 is welded by sheet material, and its molded line is the cone arc restrained vertically
Shape.Drive mechanism 5 includes main shaft, bearing housing etc., is known technology.As shown in Figure 4 and Figure 5, impeller 2 is by 14 backward template leaves
Piece 9, taper wheel cap 6, plate shaped wheel disc 7 and wheel hub 8 form.1 blade 9 is uniformly distributed along the circumference, and be welded in wheel cap 6 and wheel disc 7 it
Between, it is assembled with wheel hub 8.The volute body that casing 1 is welded for sheet material, air inlet 3 is welding structure, and its molded line is along axle
Cone arc to convergence.The a diameter of 1000mm of blade exit of impeller 2, inlet diameter are 425mm, entrance width is 99mm, goes out
Mouth width is 33.4mm, outlet blade angle is 50 °.The inlet diameter of air inlet 3 is 524mm, width is 200mm.Protecgulum trigger
The inlet diameter of structure 4 is 560mm, is highly 183mm.The width 136mm of casing 1, casing outlet center to casing center are
604.4mm, casing outlet are 310mm × 136mm.As shown in fig. 6, zero dimensional performance curve and parameter attribute：Discharge coefficient φ
For 0.037, pressure coefficient ψ is 0.6, fan efficiency η r 82.01%.Because product line is designed by modeling, therefore leaf
The above-mentioned flow passage component size of wheel, air inlet and casing can zoom in or out on year-on-year basis makes series of products, all within protection.
Implementation process of the present invention is：This impeller 2 be backward plate blade, therefore fan operation point away from turbulent area, and
Motor is difficult to transship.This centrifugal fan, by impeller internal three-dimensional flow field is carried out with numerical simulation calculation, optimizes through-flow portion
Point size, determined by inlet blade angle meet actual airflow flow direction, vane inlet loss reduction, the anti-adhesive capacity of blade
By force, the service life of impeller can be extended.There is compared with similar blower fan optimal aeroperformance, with its efficient, low noise, no because
Region residing for secondary performance and the little advantage of entrance loss.The blower fan series model of the present invention belongs to low discharge, mesohigh model
Farmland.During without inlet box, highest fan efficiency is 82%.It is applicable to smelting with the blower fan serial fan of this modeling design
In each production field of the national economy such as gold, machinery, coal, agricultural, electric power, weaving, oil, light industry, building materials and chemical industry
Centrifugal induced draught fan, high pressure forced ventilation, gas-blowing engine etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of anti-adhesion centrifugal fan, including casing (1), impeller (2), air inlet (3), front shroud mechanism (4) and transmission
Mechanism (5) it is characterised in that：Described impeller (2) includes 14 backward plate vanes (9), taper wheel cap (6), plate shaped wheel discs
And wheel hub (8) (7)；Described blade (9) is uniformly distributed along the circumference, and it is welded between wheel cap (6) and wheel disc (7), and fills with wheel hub (8)
It is made into type；Described air inlet (3) is welded by sheet material, and its molded line is the cone arc restrained vertically.
2. according to claim 1 anti-adhesion centrifugal fan it is characterised in that：Described casing (1) is for sheet material welds
The volute body becoming, the scroll casing shape cover plate that front shroud mechanism (4) is welded for sheet material.
3. according to claim 1 and 2 anti-adhesion centrifugal fan it is characterised in that：The blade exit of described impeller (2)
A diameter of 1000mm, inlet diameter is 390mm, and width is 126mm, and exit width is 33.4mm, and outlet blade angle is 50 °.
4. according to claim 3 anti-adhesion centrifugal fan it is characterised in that：The inlet diameter of described air inlet (3)
For 524mm, highly for 200mm.
5. according to claim 4 anti-adhesion centrifugal fan it is characterised in that：The import of described front shroud mechanism (4)
A diameter of 560mm, highly for 183mm.
6. according to claim 5 anti-adhesion centrifugal fan it is characterised in that：Described casing (1) width 136mm, machine
Shell export center is 604.4mm to casing center, and casing outlet is 310mm × 136mm.
7. according to claim 6 anti-adhesion centrifugal fan it is characterised in that：The height of described anti-adhesion centrifugal fan
Imitating operating point zero dimension performance parameter is：During without inlet box, discharge coefficient 0.037, pressure coefficient 0.6, fan efficiency
82.01%.
8. according to claim 7 anti-adhesion centrifugal fan it is characterised in that：Described impeller (2), air inlet (3), front
Cover plate mechanism for auto (4) and casing (1) press above-mentioned size, zoom in or out on year-on-year basis and make series of products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899085.0A CN106382239A (en) | 2016-10-14 | 2016-10-14 | Anti-adhesion centrifugal ventilation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899085.0A CN106382239A (en) | 2016-10-14 | 2016-10-14 | Anti-adhesion centrifugal ventilation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106382239A true CN106382239A (en) | 2017-02-08 |
Family
ID=57936365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610899085.0A Pending CN106382239A (en) | 2016-10-14 | 2016-10-14 | Anti-adhesion centrifugal ventilation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106382239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143526A (en) * | 2017-05-11 | 2017-09-08 | 南通升科节能技术有限公司 | Centrifugal blower |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739391Y (en) * | 2004-09-17 | 2005-11-09 | 武汉科技大学 | Dust-proof centrifugal ventilator inpeller |
| CN201065854Y (en) * | 2007-07-06 | 2008-05-28 | 江阴市宏达风机有限公司 | Backward high pressure centrifugal aeration machine |
| CN102345636A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving circulating fluidized bed boiler fan series model |
| DE102011056593B3 (en) * | 2011-12-19 | 2012-12-13 | Ventilatorenfabrik Oelde Gmbh | fan |
| CN203321881U (en) * | 2013-06-25 | 2013-12-04 | 济南风机厂有限责任公司 | Efficient and energy-saving fan series model |
| CN203532323U (en) * | 2013-09-30 | 2014-04-09 | 陈美青 | Anti-blocking and anti-caking fan blade |
| CN105822567A (en) * | 2016-04-08 | 2016-08-03 | 重庆通用工业(集团)有限责任公司 | Coke dry quenching circulating draught fan model |
-
2016
- 2016-10-14 CN CN201610899085.0A patent/CN106382239A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739391Y (en) * | 2004-09-17 | 2005-11-09 | 武汉科技大学 | Dust-proof centrifugal ventilator inpeller |
| CN201065854Y (en) * | 2007-07-06 | 2008-05-28 | 江阴市宏达风机有限公司 | Backward high pressure centrifugal aeration machine |
| CN102345636A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving circulating fluidized bed boiler fan series model |
| DE102011056593B3 (en) * | 2011-12-19 | 2012-12-13 | Ventilatorenfabrik Oelde Gmbh | fan |
| CN203321881U (en) * | 2013-06-25 | 2013-12-04 | 济南风机厂有限责任公司 | Efficient and energy-saving fan series model |
| CN203532323U (en) * | 2013-09-30 | 2014-04-09 | 陈美青 | Anti-blocking and anti-caking fan blade |
| CN105822567A (en) * | 2016-04-08 | 2016-08-03 | 重庆通用工业(集团)有限责任公司 | Coke dry quenching circulating draught fan model |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143526A (en) * | 2017-05-11 | 2017-09-08 | 南通升科节能技术有限公司 | Centrifugal blower |
| CN107143526B (en) * | 2017-05-11 | 2023-12-26 | 江苏升科节能技术有限公司 | Centrifugal fan |
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| 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 |
Application publication date: 20170208 |
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| RJ01 | Rejection of invention patent application after publication |