CN206338242U - Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set - Google Patents
Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set Download PDFInfo
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- CN206338242U CN206338242U CN201621332065.7U CN201621332065U CN206338242U CN 206338242 U CN206338242 U CN 206338242U CN 201621332065 U CN201621332065 U CN 201621332065U CN 206338242 U CN206338242 U CN 206338242U
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- centrifugal turbine
- blade
- air
- fan assembly
- spiral case
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Abstract
The utility model discloses a kind of centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set.Centrifugal turbine includes wheel disc and the blade being arranged on the wheel disc, and the stagger angle a of the blade is 80 °~89 °, and exit installation angle b is 140 °~160 °, the blade mean camber line line style is single circular arc, thickness is along mean camber line, from import to outlet, linear distribution.Because the stagger angle and exit installation angle of blade are in zone of reasonableness and the two reasonable coordination, it is distributed again plus leaf line Linear, beneficial to air flow, the thickness of blade is reasonable, so that the Velocity Profiles at volute outlet are more uniform, air-flow is more steady, so as to the vortex noise of the air flow formation of effectively reduction centrifugal turbine fan assembly.
Description
Technical field
The present invention relates to compressor mechanical field, more particularly to a kind of centrifugal turbine, centrifugal turbine fan assembly and air conditioner
Group.
Background technology
As the important component of air-conditioner set, centrifugal turbine fan assembly generally comprises spiral case and centrifugal turbine, bears
Blame and provide power for the air circulation of air-conditioner set.Its operation logic is：Centrifugal turbine is driven to turn inside spiral case by motor
It is dynamic, when centrifugal turbine is rotated by the blade on wheel disc inside spiral case to air work, promote air radially to
Outer motion, and gas flow direction is changed by spiral case and increases gas pressure, so that between spiral case air inlet and air outlet
Carry out pressure difference, formed air sucked from air inlet, the air flow of air outlet discharge, it is ensured that gas is circulated.
In the prior art, the operation noise of centrifugal turbine fan assembly is one of dominant noise source of air-conditioner set, this its
The vortex noise that middle air flow is caused is the dominant noise source that centrifugal turbine fan assembly produces noise again.On centrifugal turbine
Blade promote air acting when, blade relative to air movement, air also simultaneously to blade formation pressure cause deformable blade,
Vibration etc., surface relative flow of the air-flow by leaf baffle along blade simultaneously departs from, and is constantly formed to be vortexed and is not broken into length, so that
Form vortex noise.Through thinking, the principal element of vortex noise and the line style of blade, the setting angle of blade, leaf are caused
The thickness of piece, the quantity of blade etc. are relevant, rationally set the parameter of factors above, can efficiently control centrifugal turbine blower fan group
Part runs the generation of noise.
Utility model content
In order to solve the above technical problems, the utility model provides and a kind of can reduce the vortex noise that gas flowing is caused
Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set.
The utility model first aspect provides a kind of centrifugal turbine, including wheel disc 101 and is arranged on the wheel disc 101
Blade 103, the stagger angle a of the blade is 80 °~89 °, and the exit installation angle b of the blade 103 is 140 °~160 °；
The mean camber line c line styles of blade 103 are single circular arc, and thickness is along mean camber line c, from import to outlet, linear distribution.
Further, the stagger angle a of the blade is 84 °~86 °, and the exit installation angle b of the blade 103 is
145 °~155 °.
1. further, the thickness of the blade 103 linearly reduces from entrance point to the port of export, the thickness of entrance point is
2.5mm~2.25mm, the thickness of the port of export is 2.0mm~1.75mm.
Further, the internal diameter Φ 2 of the blade 103 is 110~120mm, and external diameter Φ 3 is 130~145mm.
Further, the quantity of the blade 103 is 35~39.
The utility model second aspect provides a kind of centrifugal turbine fan assembly, including spiral case 20, by upper volute 1, lower snail
Shell 2, air inlet 3, air outlet 4 and mounting flange 5 are constituted, and the centrifugal turbine 10 being arranged in spiral case 20, wherein, it is described
Centrifugal turbine 10 is the centrifugal turbine according to any one of first aspect in the utility model.
Further, the spacing A between the air intake side end face of the spiral case 20 and the end face of the centrifugal turbine 10 is 16
~20mm.
Further, the air intake side end face of the spiral case 20 and the spacing A of the end face of centrifugal turbine 10, with centrifugal turbine
The ratio of 10 diameter of phi 1 is between 0.118~0.2.
The utility model third aspect provides a kind of air-conditioner set, including centrifugal turbine fan assembly, wherein, the centrifugation
Turbofan component is the centrifugal turbine fan assembly according to any one of the utility model second aspect.
The technical solution of the utility model optimizes centrifugal turbine vane inlet setting angle, exit installation angle degree, blade
The parameters such as line style, blade quantity, vane thickness；The spaced relationship of spiral case air intake side end face and centrifugal turbine end face is optimized, with
And spiral case air intake side end face and the spacing of centrifugal turbine end face and the ratio relation of worm gear diameter, based on above-mentioned technical proposal, sheet
The beneficial effect of utility model is, under identical operating condition, and centrifugal turbine fan assembly is in air-cooled ducted air conditioner air conditioner noises value
4dB is reduced than former machine（A）.
Brief description of the drawings
Illustrated accompanying drawing is used for providing further understanding to of the present utility model herein, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the dimensional structure diagram of the centrifugal turbine fan assembly of the utility model preferred embodiment.
Fig. 2 is the cross section structure diagram of the centrifugal turbine fan assembly of embodiment illustrated in fig. 1.
Fig. 3 for embodiment illustrated in fig. 1 centrifugal turbine fan assembly in centrifugal turbine dimensional structure diagram.
Fig. 4 for embodiment illustrated in fig. 1 centrifugal turbine fan assembly in centrifugal turbine cross section structure diagram.
Fig. 5 is locally put for the cross section structure diagram of centrifugal turbine in the centrifugal turbine fan assembly of embodiment illustrated in fig. 4
Big figure
Fig. 6 is centrifugal turbine blade mean camber line schematic diagram.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：20th, spiral case, 1, upper volute, 2, lower spiral case, 3, air inlet, 4, go out
Air port, 5, mounting flange, 10, centrifugal turbine, 101, wheel disc, 102, drive shaft installation portion, 103, blade, 104, blade ring.
Embodiment
To make the technical solution of the utility model, objects and advantages of greater clarity, with reference to embodiment
And referring to the drawings, the utility model is further described.It should be understood that described embodiment is only the utility model
A part of embodiment, without whole embodiments, these descriptions are merely illustrative, and is not intended to limit of the present utility model
Scope.The other embodiment that those of ordinary skill in the art make on the premise of creative work is not made, belongs to this
The protection domain of utility model.In addition, in the following description, eliminate the description to common knowledge and technology, so that avoid need not
Obscure concept of the present utility model in strategic point.
As shown in Figures 1 to 5, the centrifugal turbine fan assembly of the utility model embodiment includes spiral case 20, the spiral case
20 are made up of upper shell 1, lower house 2, air inlet 3, air outlet 4 and mounting flange 5, and centrifugal turbine 10, the centrifugal turbine
10 include wheel disc 101, drive shaft installation portion 102, blade 103 and blade ring 104.Blade is fixed on wheel disc 101 and blade ring 104
Between；Centrifugal turbine 10 is arranged in spiral case.
When centrifugal turbine fan assembly works, drive shaft installation portion 102 is fixedly installed on motor drive shaft, by electronic
Machine drives centrifugal turbine 10 to be rotated in spiral case 20, and blade does work in rotation process to the air in spiral case 20, promotes air
Along the Radial Flow of centrifugal turbine 10, so as to form pressure differential in the interior outside of blade, make air continuously from air inlet 3
Flowed to air outlet 4, and from air outlet discharge, reach the purpose of air circulation.
Wherein, the stagger angle a of blade 103 is 80 °~89 °, and exit installation angle b is 140 °~160 °.Preferably, leaf
The stagger angle a of piece 103 is 84 °~86 °, and exit installation angle b is 145 °~155 °.In the present embodiment, preferably import is installed
Angle a is 85 °, and exit installation angle b is 152.5 °；The mean camber line c line styles of blade 103 are single circular arc, thickness along mean camber line c from import to
Outlet, linear distribution.Because the stagger angle a and exit installation angle b of blade are in rational scope and the two Reasonable
Close, be distributed again plus leaf line Linear, beneficial to air flow, the thickness of blade is reasonable so that the gas velocity at volute outlet
Degree distribution is more uniform, and air-flow is more steady, so as to the whirlpool of the air flow formation of effectively reduction centrifugal turbine fan assembly
Flow noise.
The thickness of the blade 103 of centrifugal turbine 10 linearly reduces from entrance point to the port of export, and the thickness of entrance point is
2.5mm~2.25mm, the thickness of the port of export is 2.0mm~1.75mm.
In the present embodiment, the thickness of entrance point is preferably 2.5mm, and the thickness of the port of export is preferably 1.75mm.Vane thickness
Reasonable setting, that is, ensure that blade has enough intensity, prevent blade in rotation deformation so as to influenceing the flowing and production of air-flow
Raw noise, and the effectively area of increase air duct, it is ensured that air-flow it is smooth.So as to be also beneficial to reduce air flow formation
It is vortexed noise.
The internal diameter Φ 2 of the blade 103 of centrifugal turbine 10 is 110~120mm, and external diameter Φ 3 is 130~145mm.The present embodiment
In, preferably internal diameter Φ 2 is 115.5mm, and external diameter Φ 3 is 135mm.The internal diameter Φ 2 and external diameter Φ 3 of blade 103 are rationally set, can be with
Ensure that blade has rational shape, it is more steady when centrifugal turbine is rotated, advantageously reduce the vortex of air flow formation
Noise.
The quantity of the blade 103 of centrifugal turbine 10 is 35~39, in the present embodiment, and preferred amount is 39.The number of blade
The reasonable setting of amount is to produce enough air draught, while can avoid caused by blade quantity is very few air draught again not
Enough or because blade quantity excessively causes to increase windage loss air duct area is too small, advantageously reduce air flow and formed
Vortex noise.
As shown in figure 3, between the air intake side end face of the spiral case 20 of centrifugal turbine fan assembly and the end face of centrifugal turbine 10
Spacing A be 16~20mm, in the present embodiment, preferably 17.5mm.Air intake side end face and the centrifugal vortex of spiral case 20 are rationally set
Spacing between the end face of wheel 10, can be effectively ensured the air velocity of air outlet 4, can effectively reduce air flow again forms
Noise.
The air intake side end face of the spiral case 20 of centrifugal turbine fan assembly and the spacing A of the end face of centrifugal turbine 10 with
The ratio of the diameter of phi 1 of centrifugal turbine is between 0.118~0.2, in the present embodiment, and preferably 0.130.Rationally set
Put the air intake side end face of spiral case 20 and the spacing A of the end face of centrifugal turbine 10 and the ratio of the diameter of phi 1 of centrifugal turbine 10, Ke Yiyou
Effect reduces air draught from the noise that generation is overflowed between the air intake side end face of spiral case and turbine end face.
The present embodiment also provides a kind of air-conditioner set, including foregoing centrifugal turbine fan assembly.
The utility model above example optimize the blade air inlet established angle of centrifugal turbine 10, air outlet established angle,
The parameter such as the line style of blade, the internal diameter of blade and external diameter, the quantity of blade, the thickness of blade；Also optimize the inlet side of spiral case 20
End face and the cooperation spacing of the end face of centrifugal turbine 10 and the air intake side end face of spiral case 20 and the cooperation spacing of the end face of centrifugal turbine 10
With the dimensional relationship of the diameter of turbine.It is experimentally confirmed, under identical operating condition, using the centrifugation of the present embodiment
The air-cooled ducted air conditioner air conditioner noises value of turbofan component reduces 4dB than former machine（A）.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model rather than it is limited
System, although the utility model is described in detail with reference to preferred embodiment, person of an ordinary skill in the technical field
It should be appreciated that still can be modified to embodiment of the present utility model or some technical characteristics are equal
Replace, without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical side of the utility model
Among case scope.
Claims (9)
1. a kind of centrifugal turbine, including wheel disc（101）, drive shaft installation portion（102）, blade ring（104）Be arranged at wheel disc
（101）With blade ring（104）Between blade（103）, it is characterised in that the blade（103）Stagger angle a be 80 °
~89 °, the blade（103）Exit installation angle b be 140 °~160 °；The blade（103）Mean camber line line style c is Dan Yuan
Arc, thickness is along mean camber line, from entrance point to the port of export, linear distribution.
2. centrifugal turbine according to claim 1, it is characterised in that the blade（103）Stagger angle a be 84 °
~86 °, the exit installation angle b of the blade is 145 °~155 °.
3. centrifugal turbine according to claim 1, it is characterised in that the blade（103）Thickness from entrance point to going out
Mouth end linearly reduces, and the thickness of entrance point is 2.5mm~2.25mm, and the thickness of the port of export is 2.0mm~1.75mm.
4. centrifugal turbine according to claim 1, it is characterised in that the blade（103）Internal diameter Φ 2 for 110~
120mm, external diameter Φ 3 are 130~145mm.
5. centrifugal turbine according to claim 1, it is characterised in that the blade（103）Quantity be 35~39.
6. a kind of centrifugal turbine fan assembly, including spiral case（20）, the spiral case is by upper volute（1）, lower spiral case（2）, air inlet
（3）, air outlet（4）And mounting flange（5）Composition；Be arranged at by the centrifugal turbine in the spiral case（10）, its feature
It is, the centrifugal turbine（10）For the centrifugal turbine according to any one of claim 1 to 5.
7. centrifugal turbine fan assembly according to claim 6, it is characterised in that the spiral case（20）Air intake side end face
With the centrifugal turbine（10）End face between spacing A be 16~20mm.
8. centrifugal turbine fan assembly according to claim 6, it is characterised in that the spiral case（20）Air intake side end face
With the centrifugal turbine（10）The spacing A of end face, the ratio with centrifugal turbine diameter of phi 1 is between 0.118~0.2.
9. a kind of air-conditioner set, including centrifugal turbine fan assembly, it is characterised in that according to the centrifugal turbine fan assembly
Centrifugal turbine fan assembly any one of claim 6 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332065.7U CN206338242U (en) | 2016-12-07 | 2016-12-07 | Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332065.7U CN206338242U (en) | 2016-12-07 | 2016-12-07 | Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set |
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| Publication Number | Publication Date |
|---|---|
| CN206338242U true CN206338242U (en) | 2017-07-18 |
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ID=59308452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621332065.7U Active CN206338242U (en) | 2016-12-07 | 2016-12-07 | Centrifugal turbine, centrifugal turbine fan assembly and air-conditioner set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109897A (en) * | 2020-08-27 | 2022-03-01 | 无锡小天鹅电器有限公司 | Wind wheel, centrifugal fan and clothes drying equipment |
-
2016
- 2016-12-07 CN CN201621332065.7U patent/CN206338242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109897A (en) * | 2020-08-27 | 2022-03-01 | 无锡小天鹅电器有限公司 | Wind wheel, centrifugal fan and clothes drying equipment |
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