CN206738234U - A kind of centrifugal ventilation machine device of adjustable vane - Google Patents
A kind of centrifugal ventilation machine device of adjustable vane Download PDFInfo
- Publication number
- CN206738234U CN206738234U CN201720430630.1U CN201720430630U CN206738234U CN 206738234 U CN206738234 U CN 206738234U CN 201720430630 U CN201720430630 U CN 201720430630U CN 206738234 U CN206738234 U CN 206738234U
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- CN
- China
- Prior art keywords
- wheel disc
- outer leafs
- intra vane
- vane
- leafs
- 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.)
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- 238000009423 ventilation Methods 0.000 title claims abstract description 7
- 229920003266 Leaf® Polymers 0.000 claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of centrifugal ventilation machine device of adjustable vane, including inner impeller and out rotor, if dry plate intra vane is circumferentially uniformly distributed along interior wheel disc, if dry plate outer leafs are circumferentially uniformly distributed along outer wheel disc；The inside and outside blade uses asymmetric surface aerofoil profile, and surface is provided with to reduce the floating of near wall frictional resistance projection；Described device also includes signal acquisition module and leaf row's distance regulating mechanism；The leaf row distance regulating mechanism includes guide slide and draw-gear.Coordinated by inside and outside blade, it can adjust outer leafs according to the air quantity under different operating modes to suitable position, realize the effect of centrifugal fan a tractor serves several purposes, reach the purpose that stability and high efficiency work is remained under off rating, greatly improve the cost performance and efficiency of centrifugal fan；Asymmetric airfoil blade makes streamline be flowed substantially along direction blade, reduces windage loss.
Description
Technical field
The utility model belongs to centrifugal fan apparatus field, and in particular to a kind of centrifugal fan dress of adjustable vane
Put.
Background technology
With the development of scientific and technical modern science and technology, centrifugal blower is set as a kind of extremely widespread machinery in production and living
It is standby, increasingly paid attention to by industrial production, the increase of centrifugal blower usage amount, higher want will be had to blower fan by also implying that
Ask, combine situation instantly for current China's Energy situation, energy-saving consumption-reducing, the theory of a tractor serves several purposes will be following blower fan development side
To；Now just in daily industry from the point of view of the working condition of blower fan, many unnecessary consumes still be present, far from meeting economy
And cost, it is that the improvement of this blower fan is imperative.
Centrifugal blower is usually what is worked in certain condition range in actual production, except centrifugal blower to be expanded
Condition range, it is also a kind of approach saved the energy and improve economy to improve regulating power of the blower fan under different load.For
Expand the draught capacity of impeller, can typically install row's blade additional before the impeller.When centrifugal blower is run under design conditions, fluid
It can preferably be attached in blade profile, larger separation will not occur.But when centrifugal blower is run under variable working condition, inner impeller is entered
Mouth flow angle is mismatched with established angle, and blade is impacted.Movable vane piece in inner impeller air-flow tail in upstream, bears
The aerodynamic loading of change, and aerodynamic loading, the size of change are related to tail rate of decay.When inner impeller is streamlined, its
The attenuation degree of air-flow tail depends on the turbulence level of entrance air-flow and the spacing between the out rotor of downstream.Spacing is smaller
When, blade flows non-stationarity increase, flow irregularity increase between arranging；When spacing is larger, tail is the same as main flow area blending of falling liquid film
Distance is longer, loss increase, therefore optimal spacing be present makes aerodynamic loss minimum.To avoid centrifugal blower in variable parameter operation
Blade design can be adjustable by generation stall or obstruction and is combined with electronic technology, to ensure in full working scope scope
Interior inner impeller can form Optimum Matching with siphonal lobe impeller blade, so as to improve blower fan Effec-tive Function scope, enhance fan operation
Stability.
The content of the invention
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of bilobed wheel with adjustable vane
Centrifugal ventilation machine device.By changing internal lobe impeller blade and out rotor blade pitgh, the influence of inner impeller air-flow tail is eliminated, from
And expand the scope of application of centrifugal fan, it can be suitably used for the production and living occasion of wide flow opereating specification.
The utility model is mainly realized by following technical scheme：
A kind of centrifugal ventilation machine device of adjustable vane, including inner impeller and out rotor, the inner impeller include lubrication groove
Disk and intra vane；The out rotor includes wheel cap, outer wheel disc and outer leafs；The interior wheel disc and outer wheel disc are supported on by bearing
On same root power input shaft；It is characterized in that：If dry plate intra vane is circumferentially uniformly distributed along interior wheel disc, intra vane side is consolidated
It is scheduled on interior wheel disc, opposite side is fixed with wheel cap, and the number of intra vane rounds up after taking the 1/3 of intra vane geometry exit angle
Numerical value；The outer leafs side of the out rotor is engaged with outer wheel disc by sliding rail, if dry plate outer leafs are along foreign steamer
Disk is circumferentially uniformly distributed；Outer leafs and the number of intra vane follow the principle of both prime numbers each other；The peace of intra vane and outer leafs
It is identical to fill rotation direction；The inside and outside blade uses asymmetric surface aerofoil profile, and surface is provided with to reduce the floating of near wall frictional resistance
Dynamic projection；
Described device also includes signal acquisition module and leaf row's distance regulating mechanism；The signal acquisition module includes probe
And central processing unit；Intra vane trailing edge and outer leafs leading edge leaf central part position are welded with probe, and probe is evenly distributed, and probe monitors
Flow field temperature, the information of flow such as pressure be delivered to central processing unit and carry out analysis calculating, spacing is arranged to leaf by central processing unit
Governor motion sends signal；
The leaf row distance regulating mechanism includes guide slide and draw-gear；Outer leafs lower surface is radially provided with
Groove is engaged with the guide slide of outer wheel disc；Wheel cap side is radially distributed guide through hole；The draw-gear includes control
Ring, connecting rod, pin and column contiguous block；The control ring receives the signal of central processing unit, and post is driven by connecting rod
Shape contiguous block moves along guide through hole；In column contiguous block lower end insertion outer leafs, so as to realize the movement of outer leafs radially.
The beneficial effects of the utility model：
The utility model is coordinated by inside and outside blade, can adjust outer leafs to suitably according to the air quantity under different operating modes
Position, the effect of centrifugal fan a tractor serves several purposes is realized, reach the purpose that stability and high efficiency work is remained under off rating, significantly
Improve the cost performance and efficiency of centrifugal fan；Asymmetric airfoil blade makes streamline be flowed substantially along direction blade, reduces gas
Stream loss；Simultaneously under blade surface floating raised role, the flow field of blade near-wall region is changed, reduces average speed ladder
Degree, reduces frictional resistance, improves the service efficiency of centrifugal fan；Flexible blade control device causes different operating modes
Under, make inner impeller Wake Effects scope smaller, external blade percussion reduces, and reduces blade loading change, improves service life；
Each member in tight of device coordinates, compact-sized.
Brief description of the drawings
Fig. 1 is overall structure schematic perspective view of the present utility model.
Fig. 2 is overall structure diagrammatic cross-section in the utility model.
Fig. 3 is intra vane schematic diagram in the utility model.
Fig. 4 is the utility model China and foreign countries wheel disc guide slide schematic diagram.
Wherein, 1-wheel cap；2-outer leafs；3-outer wheel disc；4-guide through hole；5-control ring；6-pin；7-even
Extension bar；8-column contiguous block；9-main shaft；10-intra vane；11-interior wheel disc；12-interior wheel disc guide slide.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, a kind of centrifugal ventilation machine device of adjustable vane, the inner impeller A side of intra vane 10 are fixed
On interior wheel disc 11, opposite side is fixed with the phase of wheel cap 1, N1Piece blade is circumferentially uniformly distributed, and intra vane number is by N1=β 2A /3
Estimated（β 2A For the blade geometry angle of outlet）, N1Take and be slightly larger than the value；Out rotor B outer leafs 2, side are logical with outer wheel disc 3
Cross sliding rail to be engaged, N2Piece outer leafs are circumferentially uniformly distributed, N1And N2Follow prime number principle each other, and outer leafs number
N2× impeller working speed n/60 ≠ intra vane intrinsic frequency, to avoid causing resonance；Intra vane 10 is non-right with outer leafs 2
Claim airfoil fan, and surface is provided with raised, the reduction near wall frictional resistance that floats.
Leaf row's distance regulating mechanism includes control ring 5, guide through hole 4, wheel disc guide slide 12, probe and column contiguous block
8；There is N wherein wheel cap side2Individual guide through hole 4 radially；There is N outer wheel disc side2Individual guide slide 12；Such as Fig. 3 and Fig. 4 institutes
Show, the lower surface of outer leafs 2 is provided with groove, and depth is 3mm ~ 5mm, wide about 1/4 vane thickness；Outer leafs groove and guide slide 12
It is engaged；Connecting rod 7 is by pin 6 with control ring 5 and column contiguous block 8 are linked together；The lower end of column contiguous block 8 is embedded in
In outer leafs 2.
Signal acquisition module includes probe and central processing unit；What intra vane trailing edge and outer leafs leading edge leaf central part position were welded with
Probe, probe are uniformly distributed circumferentially；The Ye Dao flow fields for the three dimensions that probe measures are transferred to signal transacting center, including stream
Size, direction, the size and pressure size of temperature of speed.Central processing unit receives pressure and the stream velocity fluctuation letter that probe transmits
Number and pass through calculation process, determine the displacement of outer leafs 2, send control instruction, control ring 5 passes through connecting rod 7 and drives post
Shape contiguous block 8 moves in guide through hole 4, so as to realize that outer leafs 2 move radially.
Claims (1)
1. a kind of centrifugal ventilation machine device of adjustable vane, including inner impeller and out rotor, the inner impeller includes interior wheel disc
And intra vane；The out rotor includes wheel cap, outer wheel disc and outer leafs；The interior wheel disc and outer wheel disc are supported on together by bearing
On a piece power input shaft；It is characterized in that：If dry plate intra vane is circumferentially uniformly distributed along interior wheel disc, intra vane side is fixed
On interior wheel disc, opposite side is fixed with wheel cap, and the number of intra vane takes what is rounded up after the 1/3 of intra vane geometry exit angle
Numerical value；The outer leafs side of the out rotor is engaged with outer wheel disc by sliding rail, if dry plate outer leafs are along outer wheel disc
Circumferentially it is uniformly distributed；Outer leafs and the number of intra vane follow the principle of both prime numbers each other；The installation of intra vane and outer leafs
Rotation direction is identical；The inside and outside blade uses asymmetric surface aerofoil profile, and surface is provided with to reduce the floating of near wall frictional resistance
It is raised；
Described device also includes signal acquisition module and leaf row's distance regulating mechanism；The signal acquisition module includes probe with
Central processor；Intra vane trailing edge and outer leafs leading edge leaf central part position are welded with probe, and probe is evenly distributed, the stream that probe monitors
Field temperature, pressure transmission to central processing unit carry out analysis calculating, and letter is sent to leaf row's distance regulating mechanism by central processing unit
Number；
The leaf row distance regulating mechanism includes guide slide and draw-gear；Outer leafs lower surface is radially provided with groove
It is engaged with the guide slide of outer wheel disc；Wheel cap side is radially distributed guide through hole；The draw-gear includes control ring, connected
Extension bar, pin and column contiguous block；The control ring receives the signal of central processing unit, drives column to connect by connecting rod
Block moves along guide through hole；In column contiguous block lower end insertion outer leafs, so as to realize the movement of outer leafs radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720430630.1U CN206738234U (en) | 2017-04-24 | 2017-04-24 | A kind of centrifugal ventilation machine device of adjustable vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720430630.1U CN206738234U (en) | 2017-04-24 | 2017-04-24 | A kind of centrifugal ventilation machine device of adjustable vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738234U true CN206738234U (en) | 2017-12-12 |
Family
ID=60561588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720430630.1U Expired - Fee Related CN206738234U (en) | 2017-04-24 | 2017-04-24 | A kind of centrifugal ventilation machine device of adjustable vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949090A (en) * | 2017-04-24 | 2017-07-14 | 浙江理工大学 | A kind of centrifugal ventilation machine device of adjustable vane |
| CN115234516A (en) * | 2022-07-04 | 2022-10-25 | 捷和电机制品(深圳)有限公司 | Diffuser and fan |
-
2017
- 2017-04-24 CN CN201720430630.1U patent/CN206738234U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949090A (en) * | 2017-04-24 | 2017-07-14 | 浙江理工大学 | A kind of centrifugal ventilation machine device of adjustable vane |
| CN115234516A (en) * | 2022-07-04 | 2022-10-25 | 捷和电机制品(深圳)有限公司 | Diffuser and fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20200424 |