CN104929965B - Spray axial fan with side wall sparge pipe - Google Patents
Spray axial fan with side wall sparge pipe Download PDFInfo
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- CN104929965B CN104929965B CN201510374936.5A CN201510374936A CN104929965B CN 104929965 B CN104929965 B CN 104929965B CN 201510374936 A CN201510374936 A CN 201510374936A CN 104929965 B CN104929965 B CN 104929965B
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Abstract
The invention discloses a kind of spray axial fan with side wall sparge pipe, including current collector, fan air drum, motor, wheel hub, movable vane and hydrophobic grid are provided with radial direction baffle device for water on movable vane blade.It is characterized in that, between motor and wheel hub, side wall sparge pipe is provided with, side wall sparge pipe inputs current by the annular water-supply-pipe outside fan air drum, the water spray tube head delivery port that side wall sparge pipe is put in fan air drum is sprayed water to the movable vane blade of rotation vertically towards movable vane blade.Due to being provided with side wall sparge pipe and radial direction baffle device for water, compared to existing spray axial fan, axle stream mist-spraying cooling fan of the present invention can significantly improve fan efficiency, reduce motor power consumption.
Description
Technical field
The present invention relates to a kind of fluid mechanical device, more particularly to a kind of spray axial fan.
Background technology
Axle stream mist-spraying cooling fan has application in many industries.In textile industry, in order to keep the temperature, wet of spinning and weaving workshop
Degree, to ensure textile product quality, it is necessary to set up conditioner.Now widely used textile air condition system is with traditional
Mist-spraying cooling fan is core, a large amount of trickle water droplets produced by mist-spraying cooling fan, and water smoke drop and air are directly carried out into caloic friendship
Change, so as to adjust the humidity and temperature of air, reach the purpose of regulation air.Traditional mist-spraying cooling fan gathers the air-supply of general blower fan
Function and the function of generation spraying are on the basis of common axial flow blower, to be constituted by installing sprayer unit
A kind of axial flow blower.The basic structure of traditional spray axial fan is as shown in figure 1, water is flowed into axial fan hub from water inlet pipe
Water set in, through after wheel hub, flow to the windward side (or upstream side) of wheel hub, be then out wheel hub, impact water retaining disk.
Due to being stopped by water retaining disk, current change direction radially centrifugal motion, while by the saw cut of water retaining disk circumference, forming water
Line radially flies out.Under wind-force effect, the waterline moved radially outwards is broken into thick water droplet, and is blown to impeller, thick water
Mist formation is ruptured under the strike for dropping in rotation movable vane blade, is flowed out with air-flow from fan outlet.
Using mist-spraying cooling fan as the air-conditioning system of nucleus equipment, while having the ability that air-supply is humidified, therefore water drenching is no longer needed
Room, so as to simplified nozzle, the component such as spraying row.Because the atomizing effect of mist-spraying cooling fan is good, with the hot and humid area of air
Time is long, therefore water use efficiency is high；Meanwhile, the sprayer unit of mist-spraying cooling fan requires very little to pressure of supply water, and water pump wasted work is small；The
Three, due to no longer using nozzle, without nozzle choking problems.Relative to traditional water spray type air-conditioning system, using spraying axial-flow
The air-conditioning system of blower fan can reduce water consumption 80%, save total energy consumption 20-30%, and economic and social benefit is notable.
But, the on-the-spot test to traditional spray axial fan shows, under big WGR operating mode under, traditional spray wind
The operational efficiency of machine is very low.When WGR is up to 0.1, i.e., volume ratio is 0.12 × 10-3, fan efficiency reduction nearly 30%, pressure
Decline nearly 20%.With the increase of WGR, motor power consumption increases rapidly.Inaccurate due to being monitored to motor wasted work, motor enters
Entering big WGR operating mode operation causes the situation for burning motor often to occur.
For these shortcomings of traditional spray axial flow blower, existing improved spray axial fan sets spray using entrance
The form of water ring optimizes improvement (Fig. 2), and improved mist-spraying cooling fan is mainly provided with impeller upstream, blower fan runner
Outside water is connected to after water ring by one annular water ring, water from aqueduct from blower fan barrel both sides, along water ring
The hole for water spraying that side is set is to impeller injection water, under the strike of impeller, water droplet rupture mist formation.The spray axial fan is effective
Ground improves the fan energy consumption increase under the conditions of the big WGR of Fig. 1 mist-spraying cooling fans, the problem of efficiency declines, but the spraying axial-flow
The setting of fans entrance water ring significantly increases the resistance of blower fan runner, has upset impeller inlet air-flow, causes the stream of blower fan
Amount and efficiency have obvious reduction, and annular spray pipe is under high velocity air impact, and easily vibration causes to loosen, accordingly, it would be desirable to
Further improve.
Although the appearance of spray axial fan, the power consumption of old-fashioned textile air condition system, mist-spraying cooling fan are greatly reduced
As the key equipment of fabric air-conditioning system, the usable operating mode model of the WGR of traditional spray blower fan itself is there is
Enclose narrow, the improved mist-spraying cooling fan resistance of ducting causes greatly the problems such as efficiency suppression ratio is more.In textile industry, ventilation blower
Energy consumption accounts for 15% of total energy consumption or so, and is the equipment continuously run again, therefore, further designs and develops high efficiency, fits
Good economic and social benefit will be had by answering the mist-spraying cooling fan of big WGR operating mode.
The content of the invention
For the problem of spray axial fan is present described in background technology, can significantly subtract it is an object of the invention to provide one kind
The flow resistance of small inlet runner, the spray axial fan for improving fan efficiency and equipment operation safety.
To achieve the above objectives, the present invention, which is adopted the following technical scheme that, is achieved：
A kind of spray axial fan with side wall sparge pipe, including motor, wheel hub, movable vane blade, fan air drum, afflux
Device and hydrophobic grid, wherein, movable vane blade is provided with radial direction baffle device for water.Characterized in that, the blower fan wind between motor and wheel hub
Cylinder inside and outside wall, is provided with side wall sparge pipe, and the side wall sparge pipe is placed in the water delivery endless tube of fan air drum outer wall by one and multiple
The water spray tube head for putting in fan air drum inwall is constituted, and each water spray tube head connect with water delivery endless tube, and multiple tube heads of spraying water are along defeated
Water ring pipe is circumferentially uniform, and each water spray tube head delivery port both faces towards movable vane blade, axially or generally axially by water to spray to rotation
Movable vane blade.
In such scheme, the quantity of the water spray tube head is between 6 to 12.Tube head of spraying water is bend pipe or straight tube.Wherein,
Bend pipe is right-angle elbow pipe or obtuse angle bend pipe, and its delivery port axially or generally axially faces the side of movable vane blade.Right-angle elbow pipe goes out
Mouth can be tubaeform, and loudspeaker open hole for water spraying again on face.Straight tube then endcapped, if the straight tube is provided with respect to the side of movable vane blade
Dry hole for water spraying.
Compared with prior art, it is an advantage of the invention that：
1st, by setting side wall sparge pipe, lacking under the inefficient and WGR scope of traditional mist-spraying cooling fan is overcome
Point.By making current directly be sprayed water along approximate axis, water droplet radial motion speed caused by former wheel hub supplies water is eliminated, can be significantly
Reduce movable vane energy consumption.
2nd, the setting of side wall sparge pipe is to the substantially unobstructed effect of fans entrance runner, therefore, the caused resistance of ducting
Increase very little, the aeroperformance of blower fan is not interfered with substantially, the mist-spraying cooling fan being relatively improved can significantly improve mist-spraying cooling fan
Total head and efficiency.
3rd, simple in construction, it is easy to fabricate, while vibration is small caused by sound construction, flowing, security is improved.
4th, the mist-spraying cooling fan proposed by the invention with side wall sparge pipe, motor power consumption is obviously reduced, while can be big
WGR operating mode under run, wide adaptation range.
Brief description of the drawings
Fig. 1 is the structure diagram of traditional spray axial flow blower.
Fig. 2 is a kind of structure diagram of improved spray axial fan.
Fig. 3 is the spray axial fan structure diagram that the present invention has side wall sparge pipe.
Fig. 4 is the side wall sparge pipe left view in Fig. 3.
In Fig. 2-Fig. 4：1. fan air drum, 2. movable vane blades, 3. wheel hubs, 4. current collectors, 5. motors, 6. radial direction drip rings,
7. water ring, 8. hydrophobic grid, 9. Additional guide vanes, 10. side wall sparge pipes, 11. radial direction baffle device for water, 12. water spray tube heads, 13. is defeated
Water ring pipe.
Fig. 5 is several selectable forms of water spray tube head in Fig. 3,4.
Fig. 6 is the schematic diagram of radial direction baffle device for water on movable vane.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment to the present invention structure and operation principle be described in further detail.
With reference to Fig. 3, a kind of spray axial fan with side wall sparge pipe, including current collector 4, fan air drum 1, motor 5,
Wheel hub 3, movable vane 2 and hydrophobic grid 8, the fan air drum inside and outside wall before impeller inlet, between motor 5 and wheel hub 3, are provided with side wall
Sparge pipe 10, movable vane 2 is provided with radial direction baffle device for water 11.
With reference to Fig. 4, side wall sparge pipe 10 is placed in the water delivery endless tube 13 of fan air drum outer wall by one and multiple puts in blower fan
The water spray tube head 12 of air duct inwall is constituted, and each water spray tube head is connected with water delivery endless tube 13, and multiple water spray tube heads are along Water Ring
Pipe 13 is circumferential uniform, and quantity can be between 6 to 12.Each water spray tube head delivery port both faces towards movable vane blade 2, with axially or approximate
Axial direction sprays to water in the movable vane blade of rotation.
With reference to Fig. 5, water spray tube head 12 can make bend pipe (Fig. 5 b)；Especially, " L " shape that can square up bend pipe (figure
5a), its delivery port axially or generally axially faces the side of movable vane blade；Straight tube (the figure of delivery port can also be could be made without
5c), the straight tube is provided with several hole for water sprayings with respect to the side of movable vane blade, and the variation of position of opening can control current in movable vane leaf
Position of collision on piece 2.Fig. 5 a water spray tube head delivery port may be alternatively configured tubaeform (Fig. 5 d), and loudspeaker open hole for water spraying again on face
(Fig. 5 e).
With reference to Fig. 6, the radial direction baffle device for water 7 on movable vane blade 2 can be overall one or more radial direction rings.These footpaths
Drop Radial Flow is hindered to ring, drop radial velocity can be reduced, movable vane energy consumption is reduced.
The operation principle of the present invention is, during blower fan work, and motor 5 drives wheel hub 3 and movable vane blade 2 to rotate, and air-flow is through collection
Flow device 4 and enter fan air drum 1, after the movable vane 2 by rotation does work to air-flow, discharged by exporting.When spraying operating mode, current
Into the water delivery endless tube 13 of side wall sparge pipe 10, by the outlets of multiple water spray tube heads 12, (or generally axially) sprays to rotation vertically
The movable vane blade 2 turned, current collide with movable vane blade 2, are broken into droplet, produce and spray, and are taken away the air that flows,
Flow to downstream.The hydrophobic grid 8 of the last correspondence movable vane position in fan air drum of water in splash to the wall of fan air drum 1 are discharged,
The hydrophobic grid peripheral band is in ramped shaped.
Simulate a spray axial fan of Fig. 3 structures using emulation technology, and Fig. 2 structures a spraying axial-flow wind
Machine.Fan performance calculating is carried out according to the calculating grid Jing Guo Numerical Validation and turbulent flow computation model to two kinds of blower fans.As a result
Show, Fig. 3 spray axial fan compares Fig. 2 spray axial fan, for same draught fan impeller, in same design stream
7600 cubes ms/h of amount, the total head of blower fan improves 10.7%；The total pressure efficiency of blower fan improves 6.7%.
Claims (2)
1. a kind of spray axial fan with side wall sparge pipe, including motor, wheel hub, movable vane blade, fan air drum, current collector
With hydrophobic grid, wherein, movable vane blade is provided with radial direction baffle device for water, it is characterised in that before impeller inlet, between motor and wheel hub
Fan air drum inside and outside wall, be provided with side wall sparge pipe, the side wall sparge pipe is by a Water Ring for being placed in fan air drum outer wall
Pipe and multiple water spray tube heads for putting in fan air drum inwall are constituted, and each water spray tube head is connected with water delivery endless tube, multiple water sprays
Tube head is circumferentially uniform along water delivery endless tube, and each water spray tube head delivery port both faces towards movable vane blade, axially or generally axially by water to spray
To the movable vane blade of rotation, the water spray tube head is bend pipe or straight tube, and the bend pipe is right-angle elbow pipe or obtuse angle bend pipe, its water outlet
Mouth axially or generally axially faces the side of movable vane blade, the right-angle elbow pipe outlet is tubaeform, opens water spray on loudspeaker face again
Hole, the straight tube endcapped, straight tube is provided with several hole for water sprayings with respect to the side of movable vane blade, and the radial direction baffle device for water is
Overall one or more radial direction rings.
2. there is the spray axial fan of side wall sparge pipe as claimed in claim 1, it is characterised in that the water spray tube head
Quantity is between 6 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510374936.5A CN104929965B (en) | 2015-06-30 | 2015-06-30 | Spray axial fan with side wall sparge pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510374936.5A CN104929965B (en) | 2015-06-30 | 2015-06-30 | Spray axial fan with side wall sparge pipe |
Publications (2)
| Publication Number | Publication Date |
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| CN104929965A CN104929965A (en) | 2015-09-23 |
| CN104929965B true CN104929965B (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510374936.5A Active CN104929965B (en) | 2015-06-30 | 2015-06-30 | Spray axial fan with side wall sparge pipe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111351126A (en) * | 2020-02-28 | 2020-06-30 | 徐州申恒环境科技有限公司 | High-efficiency energy-saving spray fan for textile air conditioner and working method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07104019B2 (en) * | 1991-07-12 | 1995-11-08 | 日本ピーマック株式会社 | Water heat source air conditioner unit and air conditioning equipment using the same |
| JPH10253100A (en) * | 1997-03-12 | 1998-09-25 | Daikin Ind Ltd | Air conditioner outdoor machine |
| CN2866910Y (en) * | 2006-01-20 | 2007-02-07 | 江阴市宏达风机有限公司 | Efficient low-noise large-blowing spray axial flow fan vane |
| CN201141671Y (en) * | 2007-10-18 | 2008-10-29 | 中原工学院 | High-efficiency preposition type atomizing humidification device |
| CN201191054Y (en) * | 2008-04-02 | 2009-02-04 | 西安工程大学 | Postposition type spraying and humidifying blower fan |
| CN101782078B (en) * | 2010-03-24 | 2011-06-22 | 西安交通大学 | Spraying axial-current fan with ring-shaped water-jet pipe |
| CN202237659U (en) * | 2011-07-25 | 2012-05-30 | 广东风华环保设备有限公司 | Air supply type environment-friendly spraying deduster |
| CN103977655B (en) * | 2014-05-24 | 2015-06-10 | 程振国 | Water tower type haze treatment device |
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Effective date of registration: 20181211 Address after: 518000 B4 Workshop, 34 Xingxing Road, Yuehe Industrial Zone, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xicheng Environmental Protection Technology Co., Ltd. Address before: 710049 Xianning West Road, Xi'an, Xi'an, Shaanxi Patentee before: Xi'an Jiaotong University |