CN110145495A - A kind of structure of efficient centrifugal air inlet - Google Patents
A kind of structure of efficient centrifugal air inlet Download PDFInfo
- Publication number
- CN110145495A CN110145495A CN201910501563.1A CN201910501563A CN110145495A CN 110145495 A CN110145495 A CN 110145495A CN 201910501563 A CN201910501563 A CN 201910501563A CN 110145495 A CN110145495 A CN 110145495A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- blower
- impeller
- collector
- motor
- 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
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of structures of efficient centrifugal air inlet, including volute of blower, blower collector, impeller and motor, the blower collector is fixedly mounted on air inlet by wind wheel spiral case, the blower collector corresponds to air inlet and is provided with rectification grid structure, and the input end face of the impeller corresponds to air inlet and has been placed equidistant with blade.The structure of the efficient centrifugal air inlet, has stable Fan Inlet gas flow disturbance, prevent the generation of air-flow vortex, and reduce " to vortex ", the generation of " second adverse current ", the advantages of having slackened the distortion in flow field, played fine raising to the characterizable motion of blower, existing ventilation blower air inlet is solved all without any fairing, various flow perturbations are caused, because of the problem of generating air-flow vortex at impeller turning effort lower air inlet, draught fan impeller mechanical efficiency is caused to reduce.
Description
Technical field
The present invention relates to ventilation blower technical field, specially a kind of structure of efficient centrifugal air inlet.
Background technique
Existing ventilation blower, air inlet all without any fairing, cause various flow perturbations, make because impeller rotates
With air-flow vortex is generated at lower air inlet, cause the reduction of draught fan impeller mechanical efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of structures of efficient centrifugal air inlet, have stable Fan Inlet gas
Body flow disturbance, prevents the generation of air-flow vortex, and reduces " to vortex ", the generation of " second adverse current ", has slackened flow field
Distortion, the advantages of fine raising is played to the characterizable motion of blower, it is all not any to solve existing ventilation blower air inlet
Fairing causes various flow perturbations, because generating air-flow vortex at impeller turning effort lower air inlet, draught fan impeller is caused to do
The problem of effect rate reduces.
To achieve the above object, the invention provides the following technical scheme: a kind of structure of efficient centrifugal air inlet, packet
Volute of blower, blower collector, impeller and motor are included, the input terminal of the volute of blower is provided with air inlet, the blower collection
It flowing device and air inlet is fixedly mounted on by wind wheel spiral case, the blower collector corresponds to air inlet and is provided with rectification grid structure,
The input end face of the impeller corresponds to the output end setting of blower collector, and it is equidistant that the input end face of the impeller corresponds to air inlet
It is provided with blade, the installation end that the volute of blower corresponds to impeller is fixedly installed with motor fixing plate, the installation end of the motor
It is fixedly mounted with motor fixing plate, and the installation end of the output end of motor and impeller is fixedly mounted.
Preferably, the blower collector is in bucket-shaped setting, and the rectification grid structure is set using air inlet cross structure
It sets.
Preferably, the rotation direction that the blade corresponds to motor is arranged in arcuation.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention drives impeller in motor connection power supply operation and rotates by the way that rectification grid structure is arranged in air inlet, thus
When extracting wind-force as the rotation of impeller generates to wind-force, gas is entered inside volute of blower by air inlet, and air inlet goes out to set
The honeycomb screen stable structure volute of blower inlet gas flow disturbance set, prevents the generation of air-flow vortex, and reduces " to whirlpool
The generation of stream ", " second adverse current ", has slackened the distortion in flow field, good raising has been played to the characterizable motion of blower, due to wind
Machine air inlet devises honeycomb screen device, improves the flow condition of Incoming gas, stabilizes flow field, keeps fan impeller blade every
The acting of piece blade is equal, and operation is more stable, reduces fan vibration probability, reduces running noises, transports to draught fan impeller
Row life-time dilatation also functions to good effect.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is present invention disassembly mounting structure schematic diagram；
Fig. 3 is air inlet structure schematic diagram of the present invention；
Fig. 4 is air inlet vertical section structure schematic diagram of the present invention；
Fig. 5 is blade wheel structure schematic diagram of the present invention.
In figure: volute of blower 1；Blower collector 2；Impeller 3；Motor 4；Air inlet 5；Rectify grid structure 6；Blade 7.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-5, a kind of structure of efficient centrifugal air inlet, including volute of blower 1, blower collector 2, leaf
Wheel 3 and motor 4, the input terminal of the volute of blower 1 are provided with air inlet 5, and the blower collector 2 is solid by wind wheel spiral case 1
At air inlet 5, the corresponding air inlet 5 of the blower collector 2 is provided with rectification grid structure 6, the input of the impeller 3 for Dingan County
End face corresponds to the output end setting of blower collector 2, and the input end face of the impeller 3 corresponds to air inlet 5 and has been placed equidistant with blade
7, the installation end of the corresponding impeller 3 of the volute of blower 1 is fixedly installed with motor fixing plate, the installation end and motor of the motor 4
Fixed plate is fixedly mounted, and the installation end of the output end of motor 4 and impeller 3 is fixedly mounted.
Specifically, the blower collector 2 is in bucket-shaped setting, the rectification grid structure 6 uses air inlet cross structure
Setting.
Specifically, the rotation direction of the corresponding motor 4 of the blade 7 is arranged in arcuation.
In use, by, by the setting rectification grid structure 6 of blower collector 2, connecting power supply fortune in motor 4 in air inlet 5
Row drives impeller 3 and rotates, so that gas at air inlet 5 by pacifying when extracting wind-force as the rotation of impeller 3 generates to wind-force
The blower collector 2 of dress enters inside volute of blower 1, and the rectification grid structure 6 that blower collector 2 is arranged is stablized volute of blower 1 and entered
Gas flow disturbance, prevents the generation of air-flow vortex, and reduces " to vortex ", the generation of " second adverse current ", slackens
The distortion in flow field plays good raising to the characterizable motion of blower, due to passing through blower collector at the air inlet 5 of blower
2 devise rectification grid structure 6, improve the flow condition of Incoming gas, stabilize flow field, make every blade of fan impeller blade
Acting it is equal, run it is more stable, reduce fan vibration probability, reduce running noises, to draught fan impeller service life
Extension also function to good effect.
In summary: the structure of the efficient centrifugal air inlet, by being arranged in air inlet 5 by blower collector 2
Grid structure 6 is rectified, power supply operation is connected in motor 4 and rotation is driven to impeller 3, thus to wind-force as the rotation of impeller 3 generates
When extracting wind-force, gas is entered inside volute of blower 1 by the blower collector 2 installed at air inlet 5, and blower collector 2 is set
The rectification grid structure 6 set stablizes 1 inlet gas flow disturbance of volute of blower, prevents the generation of air-flow vortex, and reduce it is " right
Vortex ", the generation of " second adverse current " has slackened the distortion in flow field, plays good raising to the characterizable motion of blower, due to
Rectification grid structure 6 is devised by blower collector 2 at the air inlet 5 of blower, improves the flow condition of Incoming gas, is stablized
Flow field, keeps the acting of every blade of fan impeller blade equal, runs more stable, reduces fan vibration probability, reduces
Running noises, solve existing ventilation blower air inlet all without any fairing, cause various flow perturbations, because impeller revolves
The problem of transferring to generating air-flow vortex at lower air inlet, draught fan impeller mechanical efficiency being caused to reduce.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of structure of efficient centrifugal air inlet, including volute of blower (1), blower collector (2), impeller (3) and electricity
Machine (4), it is characterised in that: the input terminal of the volute of blower (1) is provided with air inlet (5), and the blower collector (2) passes through
Wind wheel spiral case (1) is fixedly mounted at air inlet (5), and the blower collector (2) corresponding air inlet (5) is provided with honeycomb screen knot
Structure (6), the input end face of the impeller (3) correspond to the output end setting of blower collector (2), the input terminal of the impeller (3)
Face corresponds to air inlet (5) and has been placed equidistant with blade (7), and the installation end of the volute of blower (1) corresponding impeller (3) is fixedly installed with
Motor fixing plate, the installation end and motor fixing plate of the motor (4) are fixedly mounted, and the output end of motor (4) and impeller (3)
Installation end be fixedly mounted.
2. a kind of structure of efficient centrifugal air inlet according to claim 1, it is characterised in that: the blower afflux
Device (2) is in bucket-shaped setting, and the rectification grid structure (6) is arranged using air inlet cross structure.
3. a kind of structure of efficient centrifugal air inlet according to claim 1, it is characterised in that: the blade (7)
The rotation direction of corresponding motor (4) is arranged in arcuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501563.1A CN110145495A (en) | 2019-06-11 | 2019-06-11 | A kind of structure of efficient centrifugal air inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501563.1A CN110145495A (en) | 2019-06-11 | 2019-06-11 | A kind of structure of efficient centrifugal air inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145495A true CN110145495A (en) | 2019-08-20 |
Family
ID=67591029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910501563.1A Pending CN110145495A (en) | 2019-06-11 | 2019-06-11 | A kind of structure of efficient centrifugal air inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577653A (en) * | 2020-04-02 | 2020-08-25 | 宁波方太厨具有限公司 | Impeller and centrifugal fan with same |
Citations (18)
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| GB1328754A (en) * | 1971-03-05 | 1973-09-05 | Smiths Industries Ltd | Impeller apparatus |
| JP2005016315A (en) * | 2003-06-23 | 2005-01-20 | Matsushita Electric Ind Co Ltd | Centrifugal fan and its application |
| CN201250801Y (en) * | 2008-09-18 | 2009-06-03 | 中国北车集团大同电力机车有限责任公司 | Centrifugal ventilator for engines |
| CN102072172A (en) * | 2011-01-29 | 2011-05-25 | 林钧浩 | Cyclone air-inlet centrifugal synchronous backward flow fan |
| CN102840170A (en) * | 2012-10-09 | 2012-12-26 | 宁波风机有限公司 | Air inlet guiding device for large-sized centrifugal fan |
| CN202707622U (en) * | 2012-08-06 | 2013-01-30 | 株洲联诚集团有限责任公司 | Double source system electric locomotive traction fan |
| CN203009334U (en) * | 2013-01-08 | 2013-06-19 | 株洲联诚集团有限责任公司 | Internal recycling centrifugal fan for cooler of wind-driven generator |
| CN203189329U (en) * | 2013-02-05 | 2013-09-11 | 浙江大学 | Centrifugal fan for the cement industry |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN203453126U (en) * | 2013-09-09 | 2014-02-26 | 株洲联诚集团有限责任公司 | Double-volute centrifugal ventilator for heat dissipation of generator cooling system |
| CN204783851U (en) * | 2015-05-20 | 2015-11-18 | 依必安派特穆尔芬根有限两合公司 | Airflow fence and fan |
| CN205639013U (en) * | 2016-05-16 | 2016-10-12 | 株洲联诚集团有限责任公司 | High pressure coefficient cooling ventilation machine for electric locomotive traction motor |
| WO2017133371A1 (en) * | 2016-02-01 | 2017-08-10 | 宁波方太厨具有限公司 | Ceiling-mounted exhaust hood |
| CN107559223A (en) * | 2017-10-23 | 2018-01-09 | 上海瑞晨环保科技有限公司 | A kind of noise elimination efficient centrifugal blower fan |
| CN108252938A (en) * | 2018-01-08 | 2018-07-06 | 上海理工大学 | The centrifugal blower and method of low noise |
| CN208686625U (en) * | 2018-08-09 | 2019-04-02 | 湖南联诚轨道装备有限公司 | A kind of cooling centrifugal blower of EMU traction motor |
| CN210565332U (en) * | 2019-06-11 | 2020-05-19 | 佛山市晟昊通风机有限公司 | Structure of air inlet of high-efficiency centrifugal fan |
-
2019
- 2019-06-11 CN CN201910501563.1A patent/CN110145495A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1328754A (en) * | 1971-03-05 | 1973-09-05 | Smiths Industries Ltd | Impeller apparatus |
| JP2005016315A (en) * | 2003-06-23 | 2005-01-20 | Matsushita Electric Ind Co Ltd | Centrifugal fan and its application |
| CN201250801Y (en) * | 2008-09-18 | 2009-06-03 | 中国北车集团大同电力机车有限责任公司 | Centrifugal ventilator for engines |
| CN102072172A (en) * | 2011-01-29 | 2011-05-25 | 林钧浩 | Cyclone air-inlet centrifugal synchronous backward flow fan |
| CN202707622U (en) * | 2012-08-06 | 2013-01-30 | 株洲联诚集团有限责任公司 | Double source system electric locomotive traction fan |
| CN102840170A (en) * | 2012-10-09 | 2012-12-26 | 宁波风机有限公司 | Air inlet guiding device for large-sized centrifugal fan |
| CN203009334U (en) * | 2013-01-08 | 2013-06-19 | 株洲联诚集团有限责任公司 | Internal recycling centrifugal fan for cooler of wind-driven generator |
| CN203189329U (en) * | 2013-02-05 | 2013-09-11 | 浙江大学 | Centrifugal fan for the cement industry |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN203453126U (en) * | 2013-09-09 | 2014-02-26 | 株洲联诚集团有限责任公司 | Double-volute centrifugal ventilator for heat dissipation of generator cooling system |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN204783851U (en) * | 2015-05-20 | 2015-11-18 | 依必安派特穆尔芬根有限两合公司 | Airflow fence and fan |
| WO2017133371A1 (en) * | 2016-02-01 | 2017-08-10 | 宁波方太厨具有限公司 | Ceiling-mounted exhaust hood |
| CN205639013U (en) * | 2016-05-16 | 2016-10-12 | 株洲联诚集团有限责任公司 | High pressure coefficient cooling ventilation machine for electric locomotive traction motor |
| CN107559223A (en) * | 2017-10-23 | 2018-01-09 | 上海瑞晨环保科技有限公司 | A kind of noise elimination efficient centrifugal blower fan |
| CN108252938A (en) * | 2018-01-08 | 2018-07-06 | 上海理工大学 | The centrifugal blower and method of low noise |
| CN208686625U (en) * | 2018-08-09 | 2019-04-02 | 湖南联诚轨道装备有限公司 | A kind of cooling centrifugal blower of EMU traction motor |
| CN210565332U (en) * | 2019-06-11 | 2020-05-19 | 佛山市晟昊通风机有限公司 | Structure of air inlet of high-efficiency centrifugal fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577653A (en) * | 2020-04-02 | 2020-08-25 | 宁波方太厨具有限公司 | Impeller and centrifugal fan with same |
| CN111577653B (en) * | 2020-04-02 | 2022-02-18 | 宁波方太厨具有限公司 | Centrifugal fan |
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