CN107313967A - A kind of convection rotary type axial flow fan with adjustable moving blades - Google Patents
A kind of convection rotary type axial flow fan with adjustable moving blades Download PDFInfo
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- CN107313967A CN107313967A CN201710569734.5A CN201710569734A CN107313967A CN 107313967 A CN107313967 A CN 107313967A CN 201710569734 A CN201710569734 A CN 201710569734A CN 107313967 A CN107313967 A CN 107313967A
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- fan
- axial flow
- rotary type
- moving blades
- flow fan
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- 238000009792 diffusion process Methods 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
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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
- 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
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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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
Abstract
The present invention relates to blower fan technical field, and in particular to a kind of convection rotary type axial flow fan with adjustable moving blades, including two structures are identical and the fan unit that is connected；Fan unit includes inner cylinder, impeller assembly, diffusion barrel, governor motion and motor；Wherein, inner cylinder and impeller assembly, diffusion barrel are sequentially connected；Governor motion is arranged on inside inner cylinder to be connected to adjust impeller assembly with impeller assembly；Motor is arranged on inside diffusion barrel and is connected with impeller assembly, governor motion.Vent flow is flowed into from the diffusion barrel of a fan unit with the runner that outer barrel is constituted, the runner being made up of through impeller assembly inner cylinder and outer barrel flows out, the runner being made up of in another fan unit inner cylinder and outer barrel is flowed into, and the runner constituted through impeller assembly, diffusion barrel and outer barrel flows out.Have the advantages that air quantity is big, pressure is high, compact conformation and can realize that 100% inversely blows, fortune state lower blade angle is adjusted by governor motion, the purpose for changing fan operation parameter is reached.
Description
Technical field
The present invention relates to blower fan technical field, more particularly to a kind of convection rotary type axial flow fan with adjustable moving blades.
Background technology
According to relevant statistics, the power consumption of pump class and fans load accounts for more than half of national gross generation, and this has
What two aspect factors were caused, on the one hand, pump and Fan Equipment are using quite varied, and particularly blower fan spreads all over national economy each ring
Section, with much, energy consumption is naturally also big；On the other hand, the performance of pump and blower fan is related to pepeline characteristic, with the change of pipe resistance
Change, the performance (flow, pressure, power consumption etc.) of pump and Fan Equipment can also change therewith, typically in parameters such as blade angle, rotating speeds
Parabolically rule changes between efficiency and flow in the case of fixation, has a best efficiency point near design point, generally
The efficiency of best efficiency point is between 60%--80%, but in actual applications, and for various reasons, pump and Fan Equipment ten have
Eight or nine be, in the work of off-design point, to deviate more, the efficiency of equipment is lower, therefore improve the actual motion of Fan Equipment
Efficiency has the meaning of reality to energy-saving and emission-reduction.
Fan operation efficiency is improved, reduction fan energy consumption there are two paths, 1, improve the efficiency of blower fan in itself, or expand wind
The high efficient district scope of machine operation；2nd, the matching performance of optimization blower fan and pipeline, makes blower fan be worked near design point.
Ventilation function drop grade policy, if meeting this policy, the ventilation blower of in the market are carried out by country at present
Peak efficiency is substantially passable.As this blower fan of good performance, rethink and improve one or two of percentage on the basis of original
Point is all highly difficult, such as wants the high efficient district scope by expanding it, puies forward the method for fan efficiency-generator volume curve flat spot
If high blower fan actual operating efficiency, it improves the possibility of namely two or three percentage points of potentiality.Using the first paths into
This height, but effect is limited.
Optimize in the problem of blower fan is with pipeline Performance Match, because the factor of influence is more, in ventilation blower actual use very
It is rare just high efficient district run.First, ventilation blower in the market has more than 70% its actual performance and label performance
It is not consistent, and label parameter may not be exactly design point parameter.Again, ventilating engineering teacher design when ventilation, calculation of pressure excessively
It is conservative, for ventilating engineering teacher, he prefer power of fan choosing it is a little bigger be also reluctant to emit because blower pressure not enough caused by ventilation
Not enough risk, is also to cause the width increase ventilation of ventilating engineering Normal University because most of ventilation blower actual performances do not reach label performance
One of the reason for fan delivery pressure, for convenience, it is also normal that pipeline makes deviation engineering design to second pipe installation personnel
Some things, the 3rd over time, and the resistance of many pipelines can change.Above-mentioned situation is seen, even if blower fan sheet
Body is air-foil fan, but in use its actual efficiency be not necessarily it is high, even if installation is high initial stage, operation a period of time
After cannot guarantee that long-term Effec-tive Function.
The content of the invention
Weak point present in regarding to the issue above, the present invention provides a kind of convection rotary type axial flow fan with adjustable moving blades.
To achieve the above object, the present invention provides a kind of convection rotary type axial flow fan with adjustable moving blades, including：Two structures are identical
And the fan unit being connected；
The fan unit includes inner cylinder, impeller assembly, diffusion barrel, governor motion and motor；Wherein,
The inner cylinder and the impeller assembly, the diffusion barrel are sequentially connected；The governor motion is arranged on the inner cylinder
It is internal to be connected to adjust the impeller assembly with the impeller assembly；The motor be arranged on inside the diffusion barrel with it is described
Impeller assembly, governor motion connection.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, two fan units connect for axial series.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, in addition to it is arranged on the outer barrel outside the fan unit.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, the impeller assembly includes multiple blade assemblies and wheel hub, in institute
State and multiple mounting holes are uniformly machined with the circumference of wheel hub, multiple blade assemblies are separately mounted to multiple mounting holes
It is interior.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, two impeller assembly direction of rotation are opposite.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, the blade assembly include blade, two bearings, petiole fork and
Clamp nut；Wherein,
It is set with shaft seal cover, two bearings, the petiole fork and institute successively on the petiole of described blade one end
State clamp nut.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, is provided with malthoid sealing between the shaft seal cover and the bearing
Circle.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, the governor motion include adjusting slider component, regulation push rod and
Actuator；Wherein,
The adjusting slider component is connected with the petiole fork, and the adjusting slider component passes through institute with the actuator
State regulation push rod connection.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, the diffusion drum outer wall massiveness has multiple support chips.
Above-mentioned convection rotary type axial flow fan with adjustable moving blades, the diffusion barrel is in tapering shape.
In the above-mentioned technical solutions, the convection rotary type axial flow fan with adjustable moving blades that the present invention is provided, compared with prior art, gas
Flow and flowed into from the diffusion barrel of a fan unit with the runner that outer barrel is constituted, the runner being made up of through impeller assembly inner cylinder and outer barrel
Outflow, the runner being made up of in another fan unit inner cylinder and outer barrel is flowed into, and is constituted through impeller assembly, diffusion barrel and outer barrel
Runner outflow.The direction of rotation of Impeller is on the contrary, with air quantity is big, pressure is high, compact conformation and can realize that 100% is inverse
To the advantage of air-supply, it is adaptable to present narrow space, the big place of pipeline complexity resistance, such as tunnel mine ventilation.Pass through regulation
Mechanism adjusts fortune state lower blade angle, reaches the purpose for changing fan operation parameter.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 for the application one embodiment in convection rotary type axial flow fan with adjustable moving blades structural representation.
Fig. 2 for the application one embodiment in convection rotary type axial flow fan with adjustable moving blades fan unit structural representation.
Fig. 3 revolves component and governor motion for the impeller of convection rotary type axial flow fan with adjustable moving blades in one embodiment of the application
Structural representation.
Fig. 4 for the application one embodiment in convection rotary type axial flow fan with adjustable moving blades wheel hub structural representation.
Fig. 5 for the application one embodiment in convection rotary type axial flow fan with adjustable moving blades blade assembly structural representation
Figure.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the convection rotary type axial flow fan with adjustable moving blades, including two structure phases are schematically showed
Fan unit that is same and being connected, the two fan unit structures are that two separate fan units (can be described as one-level
Axial flow blower and two grades of axial flow blowers) two fan units are axial series connection.
Each fan unit includes inner cylinder 5, impeller assembly 3, diffusion barrel 2, governor motion 6 and motor 1；Wherein, the He of inner cylinder 5
Impeller assembly 3, diffusion barrel 2 are sequentially connected.Governor motion 6 is arranged on the inside of inner cylinder 5 and is connected to adjust impeller with impeller assembly 3
Component 3.Motor 1 is arranged on the inside of diffusion barrel 2 and is connected with impeller assembly 3, governor motion 6.The impeller assembly 3 is dynamic for movable vane angle
State is adjustable.Also include being arranged on the outer barrel 4 outside fan unit, the outer barrel 4 all wraps up fan unit circumference, the blower fan list
Member is in this internal work of outer barrel 4.
Specifically, two outer barrels 4 are integrally formed two fan units by flange connection, two fan units are
Plane mirror-image arrangement.The air flow of two fan units is consistent, but impeller rotation component 3 direction of rotation is opposite.Air-flow from
The diffusion barrel 2 of one fan unit is flowed into the runner that outer barrel 4 is constituted, the stream being made up of through impeller assembly 3 inner cylinder 5 and outer barrel 4
Flow out in road.The runner being made up of in another fan unit inner cylinder 5 and outer barrel 4 is flowed into, through impeller assembly 3, diffusion barrel 2 with it is outer
The runner outflow of the composition of cylinder 4.As long as the motor rotation direction that this structure changes two fan units can just realize the inverse of 100% performance
To air-supply, two fan unit roles mutually change during reverse air-supply work.
Further, dynamically adjustable impeller assembly 3 is fixed on the axle of motor 1 movable vane angle, and motor 1 is installed
Inside diffusion barrel 2, diffusion barrel 2 is fixed on the inner arm of outer barrel 5 by several radially-arranged support chips 21, and diffusion barrel 2 is in
Tapering shape.
Contra-rotating axial fan：Contra-rotating axial fan is stage impeller axial flow blower, and a Fans have former and later two leaves
Wheel composition, and Impeller direction of rotation on the contrary, with air quantity is big, pressure is high, compact conformation and can realize that 100% is inverse
To the advantages of air-supply, it is adaptable to present narrow space, the big place of pipeline complexity resistance, such as tunnel mine ventilation.
The dynamic adjustable axial flow blower of movable vane angle：Blower fan adjusts blower fan rotation in the case of operation by governor motion
The setting angle of blade, to reach the purpose for changing fan operation parameter, the axial flow blower with this function is referred to as movable vane angle
The dynamic adjustable axial flow blower of degree, abbreviation axial flow fan with adjustable moving blades.
Executing agency：Executing agency is using liquid, gas, electric power or other energy and passes through motor, cylinder or other dresses
Put and convert it into driving effect.With motor it is power in this example, by a set of special transmission system come driving blade angle
Change.
As shown in Figure 3 and Figure 4, in one embodiment, impeller assembly 3 includes multiple blade assemblies 31 and wheel hub 32,
Multiple mounting holes 321 are uniformly machined with the circumference of wheel hub 32, multiple blade assemblies 31 are separately mounted to multiple mounting holes 321
It is interior.Malthoid sealing ring 316 is installed between shaft seal cover 315 and bearing 312.Lead in the leaf angle adjusting slider of the opposite side of wheel hub 32
Bearing, jointed coupling and actuator 63 is crossed to be connected.Pushed away as shown in figure 3, governor motion 6 includes adjusting slider component 61, regulation
Bar 62 and actuator 63, specifically, adjusting slider component 61 is connected with petiole fork 313, adjusting slider component 61 and actuator
63 are connected by adjusting push rod 62.
Each blade assembly 31 can be born the bearing 312 of axial thrust, bearing capping 315, leaf by blade 311, two
Handle shifting fork 313 and clamp nut 314 are constituted.There is cylindrical petiole the one end of blade 311, and petiole end is threaded, on petiole
It is sequentially installed with bearing capping 315, opposite two installation directions of bearing 312 that can bear axial thrust, petiole shifting fork 313 and pressure
Tight nut 314, is fixed on blade 311 on the blade mounting hole 321 of wheel hub 32 by two bearings 312, and petiole is axially by pressing
Tight nut 314 is fixed.Shaft seal cover 315 is fixed by screws on wheel hub 32, and both are lined with sealing gasket, shaft seal cover on composite surface
Coaxial relation is kept between 315 and petiole, has malthoid sealing ring to seal 316 between the two, the leakage of the grease of bearing 312, leaf is prevented
There is key connecting between handle shifting fork 313 and petiole, blade 311 can follow the flexible rotating of petiole shifting fork 313 on wheel hub 32.It is all
The column cap of petiole shifting fork 313 of blade assembly 31 not shown in chuck figure by being conditioned in the outer round recessed figure of slide block assembly 61 not
Show to clamp, connection is paid to slide between column cap, chuck and the outer round recessed of adjusting slider component 61 of petiole shifting fork 313.Regulation
Slide block assembly 61 is arranged on the sleeve outer circle of wheel hub 32, keeps coaxial with wheel hub 32, outside adjusting slider component 61 and hub axle sleeve
There is sliding block key 7 to couple between circle, it is ensured that circumferencial direction is synchronous, but can be slidably in axial direction.Adjusting slider group component 61 from
Opening the side connection of wheel hub 32 has push-rod assembly 62, by that can bear axial direction between push-rod assembly 62 and adjusting slider component 61
The bearing group 8 of power couples, and can ensure that push-rod assembly does not turn when adjusting slider component 61 rotates, but push-rod assembly can be to tune
Section slide block assembly 61 transmits axial adjusting force.Push-rod assembly 62 is connected by a pair of jointed couplings 64 and actuator 63.Work as tune
When saving the action of actuator 63, adjusting slider component 61 follows push-rod assembly to produce axial displacement, and petiole shifting fork 313 is in adjusting slider
Blade 311 is set to occur angle change under the drive of component 61, due to passing through axle between adjusting slider component 61 and push-rod assembly 62
Hold group 8 to couple, direction of rotation is contacted with respect to sound, so can also dynamic regulation blade 311 when 3 rotary work of impeller assembly
Angle.
As shown in figure 5, in one embodiment, blade assembly 31 includes blade 311, two bearings 312, petiole forks
313 and clamp nut 314；Wherein, shaft seal cover 315, two bearings 312, leaves are set with successively on the petiole of the one end of blade 311
Handle fork 313 and clamp nut 314.
Hydrodynamics Theory shows, the resistance of ventilation shaft with pipeline air quantity increase rise in quadratic relation.And
The air output of blower fan can be reduced because of the increase of the resistance of ducting, and different P-Q curves can be presented in different blower fans, what working condition was fixed
Blower fan is run in the pipeline of fixed resistance, and the performance state of blower fan is also fixed, and the operating point of blower fan is exactly two curves
Intersection point.That is for same Fans, the operating point that it runs is determined by external pipeline, if wind
Machine is matched rationally with pipeline, and blower fan is run near best efficiency point, and fan operation efficiency is just high, otherwise the operational efficiency of blower fan
With regard to low.Likewise, for same air pipeline, it is necessary to convey 10000m3/ h air quantity, now pipeline drag overall, which is lost, is
1000Pa, if good, such as blower fan A, in 10000m of blower fan choosing3Efficiency during/h is its peak efficiency, is 80%, now
Blower fan A only needs to 3.47kW power consumptions just can be with if bad, such as blower fan B, in 10000m of blower fan choosing3/ h air quantity
When efficiency be only 50%, now blower fan B needs 5.56kW power consumption.But at the scene in actual use, because of many reasons
Cause to be difficult to make the operating point of blower fan fall near best efficiency point, so unnecessary additional electrical energy certainly will be caused to waste.
Contra-rotating axial fan has the advantages that many, and it is designed to if stage impeller adjustable blade burner be even more to have
The regulating working conditions advantage that other types blower fan can not be compared, the present invention to knowing for convection rotary type axial flow fan with adjustable moving blades by that can control
System, it is possible to achieve with peak efficiency or close to peak efficiency work in the range of whole air quantity, prevents additional energy source waste, if
If this invention is promoted, save national gross generation 1 layer is entirely possible to.
When specifically used：
1) the relatively low occasion of control accuracy requirement, can ignore atmospheric pressure, the measurement of air themperature；
2) the relatively low occasion of control accuracy requirement can also substitute monitoring impeller with the frequency of supply of monitoring motor
Rotating speed；
3) present invention is using nerual network technique self study modeling method generation fan performance mathematical modeling, it would however also be possible to employ
Fitting process generates fan performance mathematical modeling.
4) present invention controls blower fan using single-chip microcomputer, it would however also be possible to employ PLC (programmable controller) realizes identical work(
Energy.
5) present invention automatically generates fan performance mathematical modeling using learning software on Standard Test Rack, can also pass through
Manual testing's mode, fan performance mathematical modeling is generated using manual method.
6) present invention is to import and export the pressure state parameter at section to determine that fan performance is joined indirectly using measurement blower fan
Several, air quantity that can also be in direct measurement air pipeline and pressure determine fan performance parameter, so as to reach intelligent control
Purpose；
7) present invention controls the motor of I and II impeller respectively using two sets of frequency changer circuits, for simplify control
Algorithm, it would however also be possible to employ the larger frequency changer circuit of a set of power capacity drags two motors；
8) present invention motor speed governing is provided using the frequency changer circuit specially designed, can also with universal frequency converter come
Substitute frequency changer circuit；
9) as special case, this programme can also be to the contra-rotating axial fan intelligent control at fixed leaf angle, the tune of this programme
Rotating speed and blade angle totally four that parameter is I and II impeller are controlled, for the contra-rotating axial fan at fixed leaf angle, one, two
The blade angle of level impeller is fixed value, is only adjusted during with this programme to control by the rotation speed regulating and controlling to I and II impeller
Fan performance；
10) as thing example, this programme can also be to the convection rotary type axial flow fan with adjustable moving blades intelligent control of fixed rotating speed, this
The regulation and control parameter of scheme is the rotating speed and blade angle totally four of I and II impeller, can for the convection rotary type movable vane of fixed rotating speed
Axial flow blower is adjusted, the rotating speed of I and II impeller is fixed value, only passes through the leaf to I and II impeller during with this programme to control
Piece angle regulates and controls to adjust fan performance；
11) as thing example, this programme can also be to common axial flow fan with adjustable moving blades intelligent control, the regulation and control pair of this programme
As for convection rotary type axial flow fan with adjustable moving blades, for common axial flow fan with adjustable moving blades, its only one of which impeller level can be by right
The rotating speed and blade angle of impeller regulate and control to adjust fan performance；
12) the common axial flow fan with adjustable moving blades intelligent control that rotating speed can also be fixed as thing example, this programme, we
The regulation and control object of case is convection rotary type axial flow fan with adjustable moving blades, and for the common axial flow fan with adjustable moving blades of rotating speed fixation, it is only
There is an impeller level to adjust fan performance by regulating and controlling to blade angle.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of convection rotary type axial flow fan with adjustable moving blades, it is characterised in that including：Two structures are identical and the blower fan that is connected
Unit；
The fan unit includes inner cylinder (5), impeller assembly (3), diffusion barrel (2), governor motion (6) and motor (1)；Wherein,
The inner cylinder (5) and the impeller assembly (3), the diffusion barrel (2) are sequentially connected；The governor motion (6) is arranged on
The inner cylinder (5) is internal to be connected to adjust the impeller assembly (3) with the impeller assembly (3)；The motor (1) is arranged on
It is connected inside the diffusion barrel (2) with the impeller assembly (3) and the governor motion (6).
2. convection rotary type axial flow fan with adjustable moving blades according to claim 1, it is characterised in that：Two fan units are
Axial series are connected.
3. convection rotary type axial flow fan with adjustable moving blades according to claim 1, it is characterised in that：Also include being arranged on the wind
Outer barrel (4) outside machine unit.
4. convection rotary type axial flow fan with adjustable moving blades according to claim 1, it is characterised in that：Impeller assembly (3) bag
Multiple blade assemblies (31) and wheel hub (32) are included, multiple mounting holes (321) are uniformly machined with the circumference of the wheel hub (32),
Multiple blade assemblies (31) are separately mounted in multiple mounting holes (321).
5. convection rotary type axial flow fan with adjustable moving blades according to claim 4, it is characterised in that：Two impeller assemblies
(3) direction of rotation is opposite.
6. convection rotary type axial flow fan with adjustable moving blades according to claim 4, it is characterised in that：Blade assembly (31) bag
Include blade (311), two bearings (312), petiole fork (313) and clamp nut (314)；Wherein,
It is set with shaft seal cover (315), two bearings (312), the leaves successively on the petiole of the blade (311) one end
Handle fork (313) and the clamp nut (314).
7. convection rotary type axial flow fan with adjustable moving blades according to claim 6, it is characterised in that：In the shaft seal cover (315)
Sealing ring (316) is installed between the bearing (312).
8. convection rotary type axial flow fan with adjustable moving blades according to claim 6, it is characterised in that：Governor motion (6) bag
Include adjusting slider component (61), regulation push rod (62) and actuator (63)；Wherein,
The adjusting slider component (61) is connected with the petiole fork (313), and the adjusting slider component (61) is held with described
Row device (63) is connected by the regulation push rod (62).
9. convection rotary type axial flow fan with adjustable moving blades according to claim 1, it is characterised in that：Diffusion barrel (2) outer wall
Massiveness has multiple support chips (21).
10. convection rotary type axial flow fan with adjustable moving blades according to claim 9, it is characterised in that：The diffusion barrel (2) is in subtract
Contracting shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569734.5A CN107313967B (en) | 2017-07-13 | 2017-07-13 | Axial flow fan with adjustable counter-rotating movable blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569734.5A CN107313967B (en) | 2017-07-13 | 2017-07-13 | Axial flow fan with adjustable counter-rotating movable blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313967A true CN107313967A (en) | 2017-11-03 |
| CN107313967B CN107313967B (en) | 2024-01-30 |
Family
ID=60179356
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710569734.5A Active CN107313967B (en) | 2017-07-13 | 2017-07-13 | Axial flow fan with adjustable counter-rotating movable blades |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185190A (en) * | 2018-09-25 | 2019-01-11 | 西迪技术股份有限公司 | A kind of shaft work matching process of counter-rotating fan and counter-rotating fan |
| CN111350531A (en) * | 2020-03-18 | 2020-06-30 | 重庆交通建设(集团)有限责任公司 | Surge positive and negative airflow impact type dust removal system suitable for high-smoke tunnel construction |
| CN113217417A (en) * | 2021-04-25 | 2021-08-06 | 仨亿电器股份有限公司 | Range-adjustable axial flow fan |
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| CN109185190A (en) * | 2018-09-25 | 2019-01-11 | 西迪技术股份有限公司 | A kind of shaft work matching process of counter-rotating fan and counter-rotating fan |
| CN109185190B (en) * | 2018-09-25 | 2020-11-27 | 西迪技术股份有限公司 | Counter-rotating fan and axial power matching method thereof |
| CN111350531A (en) * | 2020-03-18 | 2020-06-30 | 重庆交通建设(集团)有限责任公司 | Surge positive and negative airflow impact type dust removal system suitable for high-smoke tunnel construction |
| CN111350531B (en) * | 2020-03-18 | 2023-10-27 | 重庆交通建设(集团)有限责任公司 | Surge positive and negative airflow impact type dust removal system suitable for high smoke tunnel construction |
| CN113217417A (en) * | 2021-04-25 | 2021-08-06 | 仨亿电器股份有限公司 | Range-adjustable axial flow fan |
| CN113217417B (en) * | 2021-04-25 | 2022-04-29 | 仨亿电器股份有限公司 | Range-adjustable axial flow fan |
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