CN209469619U - A kind of bionical centrifugal blower based on 3D printing technique - Google Patents
A kind of bionical centrifugal blower based on 3D printing technique Download PDFInfo
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- CN209469619U CN209469619U CN201822206389.1U CN201822206389U CN209469619U CN 209469619 U CN209469619 U CN 209469619U CN 201822206389 U CN201822206389 U CN 201822206389U CN 209469619 U CN209469619 U CN 209469619U
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Abstract
The utility model relates to a kind of bionical centrifugal blower based on 3D printing technique, including spiral case, impeller, air inlet and outlet, the impeller includes multiple blades between impeller front disc, impeller hub disk and impeller front disc and impeller hub disk, and the section shape of the blade is bionical shape.The utility model realizes the preferable velocity flow profile of blade surface using bionical shape blade, reduce the eddy current crack and aerodynamic noise in blade passage, the resistance in centrifugal blower can effectively be mitigated using biomimetic features in blade lateral margin or vacuum side of blade, keep the fluid for having low speeds flow in interlobate cell cube, the thickness for increasing boundary layer reduces the velocity gradient of the fluid between blade.
Description
Technical field
The utility model relates to a kind of centrifugal blower, in particular to a kind of bionical centrifugal blower based on 3D printing technique.
Background technique
Centrifugal blower is to improve gas pressure by the mechanical energy of input and convey the machinery of gas, multiple-fin centrifugal blower
It is the critical component in air-conditioning refrigeration system.In the prior art, Chinese patent 201721440246.6,201510670790.9
The blade of the impeller of centrifugal blower is perpendicular to impeller front disc and impeller hub disk, this causes blade passage strong to the impact of spiral case
It spends larger, to generate biggish noise at work, and there is biggish resistance, cause the ventilation quantity of centrifugal blower lower.
Production centrifugal blower generally uses air inlet, blast pipe, impeller, impeller front disc, impeller hub disk, spiral case to make respectively and then welds
Technology, production efficiency is low, at high cost, it is difficult to produce have complex leaf structure centrifugal blower.
Utility model content
The purpose of this utility model is to provide a kind of bionical centrifugal blower based on 3D printing technique, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions: it is a kind of based on 3D printing technique it is bionical from
Heart blower, including spiral case, impeller, air inlet and outlet, the impeller include impeller front disc, impeller hub disk and impeller front disc
Multiple blades between impeller hub disk, the section shape of the blade are imitative fish shape, the blade lateral margin or vacuum side of blade tool
There are biomimetic features.
Preferably, the bionical centrifugal blower uses aluminum alloy plate materials or 304 stainless steel materials, passes through the molten of 3D printer
Thaw collapse product is made.
Preferably, the biomimetic features be the triangle striped of imitative goshawk wing trailing edge, in Artificial dolphin leather skin layers papillaris pars half
The v-shaped structure of spherical pit or imitative shark body surface placoid scale.
Preferably, the side length of the triangle striped of the imitative goshawk wing trailing edge is 9-25mm, and width 3-5mm, spacing is institute
1-5 times for stating the width of positive triangle striped.
Preferably, the radius of the hemispherical dimples of papillaris pars is 10-30mm in the Artificial dolphin leather skin layers, and spacing is described
2-10 times of the radius of hemispherical dimples.
Preferably, the v-shaped structure of the imitative shark body surface placoid scale is alternately arranged, and the v-shaped structure angle is 30 ° -75 °, V
Shape structure wire body width is 3-5mm.
Compared with prior art, the utility model has the beneficial effects that
1, the preferable velocity flow profile of blade surface is realized using imitative fish shape blade, improves the boundary-layer of blade surface
Separation and development, reduce the gas-flow resistance in blade passage, to reduce the eddy current crack in blade passage；Imitative fish simultaneously
Shape blade reduces the impact strength to volute tongue and spiral case in the wake flow jet stream that trailing edge is formed, and improves volute tongue and spiral case surface
Acoustic pressure fluctuation intensity effectively reduces the aerodynamic noise of blower；
2, the utility model can effectively be mitigated in centrifugal blower in blade lateral margin or vacuum side of blade using biomimetic features
Resistance keeps the fluid for having low speeds flow in interlobate cell cube, increases the thickness in boundary layer, reduce between blade
The velocity gradient of fluid.
Detailed description of the invention
Fig. 1 is the structural front view of the utility model.
Fig. 2 is the impeller side view of the utility model embodiment 1.
Fig. 3 is the impeller side view of the utility model embodiment 2.
In figure: 1, spiral case；2, impeller；21, impeller front disc；22, impeller hub disk；23, blade；3, air inlet；4, air outlet.
Specific embodiment
The utility model is further described below with reference to embodiment.
The following examples illustrate the utility model, but cannot be used to limit the protection scope of the utility model.Implement
Condition in example can be adjusted according to actual conditions are further, to the utility model under the concept thereof of the utility model
Method simple modifications belong to the requires of the utility model protection range.
Embodiment 1
Such as Fig. 1-2, a kind of bionical centrifugal blower based on 3D printing technique of the present embodiment, including spiral case 1, impeller 2, into
Air port 3, air outlet 4, impeller 2 is including between impeller front disc 21, impeller hub disk 22 and impeller front disc 21 and impeller hub disk 22
Multiple blades 23, the section shape of blade 23 are imitative fish shape.Bionical centrifugal blower is logical by 3D printer using aluminum alloy plate materials
The fusion sediment for crossing 3D printer is made, and 23 lateral margin of blade and the back side are the triangle striped of imitative goshawk wing trailing edge, side length 14mm,
Width is 4mm, and spacing is 4 times of the width of the positive triangle striped.
Embodiment 2
Such as Fig. 3, a kind of bionical centrifugal blower based on 3D printing technique of the present embodiment, including spiral case 1, impeller 2, air inlet
Mouth 3, air outlet 4, impeller 2 is including more between impeller front disc 21, impeller hub disk 22 and impeller front disc 21 and impeller hub disk 22
A blade 23, the section shape of blade 23 are imitative fish shape.Bionical centrifugal blower passes through 3D by 3D printer using 304 stainless steels
The fusion sediment of printer is made, and 23 back side of blade is the hemispherical dimples of papillaris pars in Artificial dolphin leather skin layers, 23 lateral margin of blade
It is smooth, radius be 25mm, spacing is 5 times of radius of hemispherical dimples.
Embodiment 3
A kind of bionical centrifugal blower based on 3D printing technique of the present embodiment, including spiral case 1, impeller 2, air inlet 3, outlet air
Mouth 4, impeller 2 include multiple blades between impeller front disc 21, impeller hub disk 22 and impeller front disc 21 and impeller hub disk 22
23, the section shape of blade 23 is imitative fish shape.Bionical centrifugal blower passes through 3D printing by 3D printer using aluminum alloy plate materials
The fusion sediment of machine is made, and 23 lateral margin of blade is the v-shaped structure of imitative shark body surface placoid scale, imitates the v-shaped structure of shark body surface placoid scale
It is alternately arranged, the v-shaped structure angle is 45 °, and v-shaped structure wire body width is 4mm.
Comparative example 1
A kind of bionical centrifugal blower based on 3D printing technique of the present embodiment, including spiral case 1, impeller 2, air inlet 3, outlet air
Mouth 4, main shaft 5, bearing 6, impeller 2 is including between impeller front disc 21, impeller hub disk 22 and impeller front disc 21 and impeller hub disk 22
Multiple blades 23, the shape of vertical of blade 23 is in impeller front disc 21 and impeller hub disk 22.Bionical centrifugal blower is using common system
Make technique to be made using aluminum alloy plate materials, 23 lateral margin of blade and 23 back side of blade are shiny surface.
EXPERIMENTAL EXAMPLE
Using the aeroperformance of aeroperformance the test device testing example 1-3 and comparative example 1 of model FL-2ISO,
Numerical value calculating is carried out to embodiment 1-3 and comparative example 1 using CFD algorithm, and chooses monitoring point, monitors the acoustic pressure of difference position
Grade is to analyze impeller area vorticity, noise, air quantity, and by table one as it can be seen that the air quantity of bionical centrifugal blower increases 78m3/h, efficiency is mentioned
It is high by 9.94%, by table two as it can be seen that using bionical shape blade and using biomimetic features can be in blade lateral margin or vacuum side of blade
Reduce the noise of centrifugal blower.
The original centrifugal blower of table one and bionical Aerodynamic Performance of Centrifugal Fan compare
| Original blower | Bionical centrifugal blower | |
| Air quantity | 278m3/h | 356m3/h |
| Total pressure efficiency | 36.59% | 46.53% |
Sound pressure level at the original centrifugal blower of table two and bionical centrifugal blower monitoring point
The utility model has the centrifugal blower of biomimetic features based on 3D printing technique production, can be effectively reduced blower
Aerodynamic noise, can effectively mitigate the resistance in centrifugal blower using biomimetic features in blade lateral margin or vacuum side of blade, increase
The exhaust air rate and working efficiency of centrifugal blower.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of bionical centrifugal blower based on 3D printing technique, it is characterised in that: including spiral case, impeller, air inlet, outlet air
Mouthful, the impeller includes multiple blades between impeller front disc, impeller hub disk and impeller front disc and impeller hub disk, the leaf
For the equal vertical distribution of piece between impeller front disc and impeller hub disk, the section shape of the blade is imitative fish shape, the blade lateral margin
Or vacuum side of blade has biomimetic features.
2. a kind of bionical centrifugal blower based on 3D printing technique according to claim 1, it is characterised in that: described bionical
Centrifugal blower uses aluminum alloy plate materials or 304 stainless steel materials, is made up of the fusion sediment of 3D printer.
3. a kind of bionical centrifugal blower based on 3D printing technique according to claim 2, it is characterised in that: described bionical
Structure is the triangle striped of imitative goshawk wing trailing edge, the hemispherical dimples of papillaris pars or imitative shark body surface placoid scale in Artificial dolphin leather skin layers
V-shaped structure.
4. a kind of bionical centrifugal blower based on 3D printing technique according to claim 3, it is characterised in that: it is described imitate it is grey
The side length of the triangle striped of hawk wing trailing edge is 9-25mm, width 3-5mm, and spacing is positive 1-5 times of width of triangle striped.
5. a kind of bionical centrifugal blower based on 3D printing technique according to claim 3, it is characterised in that: the imitative sea
The radius of the hemispherical dimples of papillaris pars is 10-30mm in globefish skin layer, and spacing is the 2-10 of the radius of the hemispherical dimples
Times.
6. a kind of bionical centrifugal blower based on 3D printing technique according to claim 3, it is characterised in that: the imitative shark
The v-shaped structure of fish body table placoid scale is alternately arranged, and the v-shaped structure angle is 30 ° -75 °, and v-shaped structure wire body width is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822206389.1U CN209469619U (en) | 2018-12-27 | 2018-12-27 | A kind of bionical centrifugal blower based on 3D printing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822206389.1U CN209469619U (en) | 2018-12-27 | 2018-12-27 | A kind of bionical centrifugal blower based on 3D printing technique |
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| CN209469619U true CN209469619U (en) | 2019-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752587A (en) * | 2021-09-08 | 2021-12-07 | 上汽大众汽车有限公司 | Manufacturing method of air outlet of automobile air conditioner |
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2018
- 2018-12-27 CN CN201822206389.1U patent/CN209469619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752587A (en) * | 2021-09-08 | 2021-12-07 | 上汽大众汽车有限公司 | Manufacturing method of air outlet of automobile air conditioner |
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