CN106523401B - 360 ° of fans of optimizing pneumatic performance - Google Patents

360 ° of fans of optimizing pneumatic performance Download PDF

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Publication number
CN106523401B
CN106523401B CN201610675932.5A CN201610675932A CN106523401B CN 106523401 B CN106523401 B CN 106523401B CN 201610675932 A CN201610675932 A CN 201610675932A CN 106523401 B CN106523401 B CN 106523401B
Authority
CN
China
Prior art keywords
turbine
blade
motor
plate
ladder
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
Application number
CN201610675932.5A
Other languages
Chinese (zh)
Other versions
CN106523401A (en
Inventor
金英子
李国琪
胡勇军
李昳
崔宝玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
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Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN201610675932.5A priority Critical patent/CN106523401B/en
Publication of CN106523401A publication Critical patent/CN106523401A/en
Application granted granted Critical
Publication of CN106523401B publication Critical patent/CN106523401B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30Vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/441Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

Abstract

The invention discloses 360 ° of fan turbine apparatus of optimizing pneumatic performance, including shaft and blade and plate three parts, this turbine is covered by a netted outer cover.In addition, there are also the shaft, motor fixing frame and the pedestals that connect turbine and work drive motor.Blade is circumferentially equidistantly mounted in shaft, blade is connected directly with plate simultaneously, turbine is connected to the motor by rotary shaft and is connect, motor correspondence is fixed on motor fixing frame, motor fixing frame is then fixed in pedestal, turbine apparatus is improved, that is, deflector, tooth-shape structure with impact-reducing, hierarchic structure three aspect remodeling improve 360 ° of fan aeroperformances.Apparatus of the present invention have efficient aeroperformance, and the features such as low noise.

Description

360 ° of fans of optimizing pneumatic performance
Original application date:2014.5.26 original applying number:201410226769.5,
Former denomination of invention:A kind of 360 ° of fans of optimizing pneumatic performance
Technical field
The invention belongs to fan technology field more particularly to a kind of 360 ° of fans of optimizing pneumatic performance.
Background technique
Conventional fan can only often blow a direction, such as tube-axial fan on air-out direction.Conventional fan cannot be guaranteed Hearsay is delivered in all orientation.The some fans occurred on the market need ceaselessly to wave, so that there is wind in each direction, but It is to be unable to satisfy each moment to all have and blow air over.And it is common in appearance, in the fan market of competitive excitation, does not have and induce one The characteristic gazed at.
To solve the above problems, being proposed 360 ° of fans on the market.As its name suggests, 360 ° of fans, 360 ° of annulars one Circle can blow to wind.360 ° of each moment is solved the problems, such as without dead angle outlet air.360 ° of fans not only have it is so excellent go out Wind performance, while again with the appearance of Greco-Roman Style.The classic feature with the modern times of fan fusion, can regard is that an art work is glad Reward.Although current 360 ° of fan air-out effects are preferable, relatively some other fan, air quantity a bit deficient in.And noise It is smaller, but air-flow is caused not due to causing ambient gas to be pulsed when turbine rotation on the leaves top such as axial leaf top and radial leaf top Stablize, increases rotational noise and generate probability.
Accordingly, it is considered to which above-mentioned analysis, is badly in need of designing a kind of turbine of bladeless fan, it can guarantee that bladeless fan is whole In the case of aeroperformance optimization, reduces the pulsation of turbo blade ambient pressure and air-flow inhomogeneities and rotational noise increases Deng influence.A possibility that also reducing the generation possibility of resonance simultaneously, and then leading to blade fatigue and be broken reduction.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of 360 ° of fans of optimizing pneumatic performance, in energy Enough in the case where improving 360 ° of fan entirety outlet air performances, the aerodynamic noise of turbo blade generation is reduced.
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of 360 ° of fan turbine apparatus of low noise.,
A kind of 360 ° of fans of optimizing pneumatic performance of the present invention include motor, rotation axis, turbine, motor fixing frame and netted Outer cover;Netted outer cover integrally wraps up turbine, and motor is provided on motor fixing frame, and the output shaft of motor passes through transmission shaft and whirlpool Wheel connection, motor, motor fixing frame, shaft are arranged in pedestal.The turbine include five blades and plate, blade and Plate is orthogonal, and five blade equidistantly distributeds, blade height is consistent with the diameter of plate, and wherein the camber of blade is plate 0.2 times of radius, with a thickness of 4mm.Turbine is equipped with guiding device.
The turbine plate top and bottom are covered by deflector, the position coordinates point on deflector and shaft axis diameter To 0~20mm of distance, radius of curvature increases to 100 by the 20 of deflector center, the position coordinates point on deflector and shaft axis Line 20~60mm of radial distance, radius of curvature increase to infinitely great from 100.
6~16 teeth are shared on each blade of the turbine, axial blade upper top and next top respectively account for half, each Toothing is identical, and tooth form is arc-shaped structure, and tooth root and tooth top are rounding off.Tooth high setting is 2.5~4mm, tooth pitch 5 ~8mm;
All there are two ladders at the turbine each blade radial leaf top, symmetrical by symmetrical plane of plate.Rank It is to smoothly transit that ladder, which connect transition with blade,.The height control of ladder is in 3~6mm, and width is 6~15mm, and the arc length of ladder is 1/8 circumference,
Preferably, ladder a height of 4mm, ladder width 10mm.Stepped surfaces are arc-shaped, and height radially increases Height increases to 4mm by 0.About 1/8 circumference of the arc length of ladder.
The present invention has following good effect:
Due to being added to deflector, impact when air-flow enters turbine portion is reduced, air-flow is by more stable entrance In runner, air-flow is more steady along radial motion in runner, and caused pressure fluctuation is less, and both having played reduces noise Effect, while air quantity of fan is also improved.Since deflector covers part shaft and root of blade, make air will not be It is detained around shaft or slows down, is conducive to air-flow and is more sufficiently moved along air-out direction, improve the outlet air efficiency of fan. Also root of blade air low speed is solved the problems, such as.Tooth-shape structure remodeling has been done on turbo blade axial direction leaf top, which changes The pressure distribution at the axial top of blade, weakens noise source at blade axial direction leaf top, advantageously reduces fan when air inlet Noise.Blade radial leaf devises hierarchic structure at top, and since this ladder is on the pressure face of blade, and stepped surfaces band is curved Song is conducive to drive surrounding air movement when turbine rotation, improves Radial Flow rate, improve air-out volume.The structure simultaneously Remodeling reduce the pressure fluctuation of blade surface, reduce the generation of rotational noise.
Detailed description of the invention
Fig. 1 is 360 ° of fan structure diagrams of the invention;
Fig. 2 is 360 ° of fan turbine prototype structure schematic diagrames of the invention;
Fig. 3 a is the schematic diagram of the first turbine of 360 ° of fan turbine apparatus of the invention;
Fig. 3 b is the schematic diagram of the first turbine deflector of 360 ° of fan turbine apparatus of the invention;
Fig. 4 is the schematic diagram of second of turbine of 360 ° of fan turbine apparatus of the invention;
Fig. 5 is the schematic diagram of the third turbine of 360 ° of fan turbine apparatus of the invention;
Fig. 6 is the specification specified figure of the third turbine of the invention;
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1 and Figure 2, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of 360 ° of fans of low noise Turbine apparatus, a kind of 360 ° of fans of optimizing pneumatic performance of the present invention include motor 5, rotation axis 2, turbine 1, motor fixing frame 7 With netted outer cover 8;Netted outer cover integrally wraps up turbine, and motor is provided on motor fixing frame, and the output shaft of motor passes through biography Moving axis is connect with turbine 1, and motor, motor fixing frame, shaft are arranged in pedestal 4.The turbine include five blades and Plate, blade and plate 3 are orthogonal, and five blade equidistantly distributeds, 6 height of blade is consistent with the diameter of plate, the middle period The camber of piece is 0.2 times of plate radius, with a thickness of 4mm.Turbine is equipped with guiding device.
As shown in Figure 3a, 3b, the turbine plate top and bottom are covered by deflector, and the position on deflector is sat Punctuate and 0~20mm of shaft axis radial distance, radius of curvature increase to 100 by the 20 of deflector center, the position on deflector Coordinate points and 20~60mm of shaft axis radial distance are set, radius of curvature increases to infinitely great from 100.Streamline is presented in its contour line Type directs air flow in runner, air-flow is more stably in runner while reducing axial flow and entering turbine portion impact Along radial motion, both play the role of reducing noise, while air quantity of fan is also improved.The song of contour line front half section Rate radius is smaller, radius of curvature by deflector center 20 to increment 100.And the second half section due to tending towards stability close to plate, Then radius of curvature is larger, because parallel with plate, therefore radius of curvature increases to infinitely great by 100.Contour line front half section is leaned on It at nearly shaft, plays drainage and reduces impact effect, allow the entrance turbine flow stable from the gas for flowing axially through turbine Road.And the second half section is then to play the role of steady flow, by air-flow gently steadily outside radial delivery to turbine.
As shown in figure 4, sharing 10 teeth on each blade of the turbine, axial blade upper top and next top respectively account for one Half, each toothing is identical, and tooth form is arc-shaped structure, and tooth root and tooth top are rounding off.Tooth high setting is 2.5mm, tooth Away from for 5mm;
The number of teeth can excessively cause flow losses, therefore need to control the number of teeth, by number of teeth control on each blade at 6 to 16 Within it is ideal.The tooth height and the facewidth of tooth-shape structure must be maintained within 4mm, and tooth is excessively high or wide, then easily causes blade The reduction of acting ability easily makes air-flow conveying unstable, and flow losses increase.Blade axial top when the structure changes air inlet The pressure distribution on surface weakens noise source at blade axial direction leaf top, and being conducive to fan reduces noise.
As shown in Figure 5, Figure 6, all there are two ladders at the turbine each blade radial leaf top, are symmetrical flat with plate Face is symmetrical.It is to smoothly transit that ladder, which connect transition with blade,.Ladder a height of 4mm, ladder width 10mm.Stepped surfaces are in Arc-shaped, height radially increases, and increases to 4mm by 0.The arc length of each ladder is 1/8 circumference.
Blade radial leaf devises hierarchic structure at top.The ladder of on piece cannot be arranged excessively, can excessively make air trajectory Disorder, while more turbine is generated, the efficiency of fan is reduced, control is preferred within 4.It is arranged on each blade herein All there are two ladders, i.e. plate each one up and down.It is to smoothly transit that ladder, which connect transition with blade,.
360 ° of fan outlet air processes of the present invention are air motion mode substantially according to arrow and verbal description.Wind is from outer cover Top and bottom air inlet through hollow shaft, by turbine runner from radial outlet air.Meet 360 ° of outlet air of fan, annular air outlet effect.

Claims (1)

1. 360 ° of fans of optimizing pneumatic performance, including motor, rotation axis, turbine, motor fixing frame and netted outer cover;It is netted outer Cover integrally wraps up turbine, and motor is provided on motor fixing frame, and rotation axis is connect by transmission shaft with turbine, motor, motor Fixed frame, rotation axis are arranged in pedestal;It is characterized in that:The turbine includes plate and five blades, blade peace Plate is orthogonal, and five blade equidistantly distributeds, blade height is consistent with the diameter of plate, and wherein the camber of blade is plate half 0.2 times of diameter, with a thickness of 4mm;Turbine is equipped with guiding device;
All there are two ladders at each blade radial leaf top of the turbine, symmetrical by symmetrical plane of plate;Ladder It is to smoothly transit with blade junction;The ladder a height of 4mm, ladder width 10mm;The arc length of ladder is the circular arc institute The 1/8 of round circumference;The bending of stepped surfaces band is conducive to drive surrounding air movement when turbine rotation, improves radial flow Dynamic rate, improves air-out volume, reduces the pressure fluctuation of blade surface, reduce rotational noise.
CN201610675932.5A 2014-05-26 2014-05-26 360 ° of fans of optimizing pneumatic performance Expired - Fee Related CN106523401B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610675932.5A CN106523401B (en) 2014-05-26 2014-05-26 360 ° of fans of optimizing pneumatic performance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410226769.5A CN104088802B (en) 2014-05-26 2014-05-26 A kind of 360 ° of fans of optimizing pneumatic performance
CN201610675932.5A CN106523401B (en) 2014-05-26 2014-05-26 360 ° of fans of optimizing pneumatic performance

Related Parent Applications (1)

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CN106523401B true CN106523401B (en) 2018-11-30

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CN201610670338.7A Pending CN106640700A (en) 2014-05-26 2014-05-26 360-degree fan with optimized aerodynamic performance
CN201410226769.5A Expired - Fee Related CN104088802B (en) 2014-05-26 2014-05-26 A kind of 360 ° of fans of optimizing pneumatic performance

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CN106523429B (en) * 2016-12-05 2019-06-25 珠海格力电器股份有限公司 The fan blade of circumferential outlet air and fan with it
CN107198808A (en) * 2017-07-10 2017-09-26 杭州超德斯实业有限公司 A kind of oxygen mask
CN107701488A (en) * 2017-08-08 2018-02-16 永春百祥茶业有限公司 A kind of new energy-saving fan device
CN110966231B (en) * 2018-09-29 2021-08-06 广东威灵电机制造有限公司 Circumferential air outlet fan

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Publication number Publication date
CN106640700A (en) 2017-05-10
CN106523401A (en) 2017-03-22
CN104088802B (en) 2017-01-04
CN104088802A (en) 2014-10-08

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