CN202900707U - Air supply device of mixed flow blower - Google Patents
Air supply device of mixed flow blower Download PDFInfo
- Publication number
- CN202900707U CN202900707U CN 201220558930 CN201220558930U CN202900707U CN 202900707 U CN202900707 U CN 202900707U CN 201220558930 CN201220558930 CN 201220558930 CN 201220558930 U CN201220558930 U CN 201220558930U CN 202900707 U CN202900707 U CN 202900707U
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- Prior art keywords
- air supply
- centrifugal impeller
- guide vane
- flow
- flow blower
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Abstract
The utility model relates to an air supply device of a mixed flow blower. The air supply device of the mixed flow blower comprises a centrifugal impeller and a back-installed guide vane, wherein the centrifugal impeller and the back-installed guide vane are installed inside an outer barrel body. The air supply direction of the centrifugal impeller is perpendicular to the air supply direction of the back-installed guide vane. The requirements of air quantity and air pressure of the centrifugal fan are met, and the advantage of flexible installation of an axial flow is possessed by combining air supply structures of a traditional axial flow fan and a centrifugal fan and adopting the centrifugal impeller and the back-installed vane, wherein the air supply direction of the centrifugal impeller is perpendicular to the air supply direction of the back installed guide vane. The air supply device of the mixed flow blower is suitable to be used in ship equipment with high demand.
Description
Technical field
The utility model relates to a kind of blower fan, is a kind of blast device of flow-mixing blower fan specifically.
Background technique
Marine type fan generally is divided into centrifugal blower and axial-flow blower two classes, and the characteristics of centrifugal blower are that air quantity is little, and pressure is high; The characteristics of axial-flow blower are that air quantity is high, and pressure is little; But along with developing rapidly of ship industry, shipborne equipment is more and more advanced, and the performance of blower fan is had higher requirement.
Centrifugal blower needs larger space and special pipeline to arrange usually, because the restriction in environment peculiar to vessel and place does not generally have enough spaces to arrange; Axial-flow blower can utilize on the ship ventilator pipe to arrange, but its pressure is not high, in general, the static pressure of axial-flow blower is not super 600Pa generally, when system needs higher static pressure, only achieve the goal by series connection blower fan or reduction user demand, this two schemes one is to increase operating cost, the secondth, the reduction demand must increase the operation difficulty to other side.
Summary of the invention
Can't satisfy the deficiency of shipborne equipment high performance requirements in order to solve centrifugal blower in the prior art or axial-flow blower, the utility model provides a kind of compact structure, and is easy for installation, and ventilation is large, blast is high, drafting efficiency is high, the flow-mixing blower fan blast device that noise is low.
During the technical solution adopted in the utility model: a kind of flow-mixing blower fan blast device is characterized in that: comprise the centrifugal impeller and the exit guide vane that all are installed in the outer cylinder body, the air supply direction of centrifugal impeller is vertical with the air supply direction of exit guide vane.
Described centrifugal impeller is cast aluminium alloy casting machine aerofoil profile.
Described exit guide vane is the twisted blade formula.
Adopt above technological scheme, the beneficial effects of the utility model are: outer cylinder body forces the air-flow of being sent by centrifugal impeller, and rearward stator is mobile, reduces windage loss, improves fan performance; Impeller adopts cast aluminium alloy casting machine aerofoil profile, has good air dynamic behaviour, and its weight is low, intensity good, rigidity is large, and flow coefficient is large, and drafting efficiency improves 5%-10%, and noise hangs down the 3-5 decibel; Exit guide vane is the twisted blade formula, and the efficient district of stator and stable operation range are wide, and off design performance is good, is conducive to improve working life.
The utility model is in conjunction with the air-supply structure of traditional axial-flow blower and centrifugal blower, adopt centrifugal impeller and the exit guide vane of mutual vertical ventilation, both reached centrifugal blower air quantity, blast requirement, and had again axial-flow blower advantage flexible for installation, the ship equipment that is fit to high request uses.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: outer cylinder body 1, inner barrel 2, axial flow motor 3, motor shaft 4, centrifugal impeller 5, intake grill 6, exit guide vane 7, exhaust outlet 8, noise reduction layer 9.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Shown in Figure 1, a kind of flow-mixing blower fan blast device comprises outer cylinder body 1, inner barrel 2, axial flow motor 3, centrifugal impeller 5, intake grill 6, exit guide vane 7 and exhaust outlet 8.Centrifugal impeller 5 is installed on the motor shaft 4 of axial flow motor 3, axial flow motor 3 is installed in the inner barrel 2, inner barrel 2 places in the outer cylinder body 1 through exit guide vane 7 connections, exit guide vane 7 is the twisted blade formula, intake grill 6 cooperates with centrifugal impeller 5 and is installed on outer cylinder body 1 one ends, intake grill 6 is that the both ends open diameter is all greater than the arc tubular of intermediate portion diameter, the outer cylinder body in centrifugal impeller 5 outlet ports is outside opening shape, centrifugal impeller 5 is cast aluminium alloy casting machine aerofoil profile, outer cylinder body 1 the other end is installed exhaust outlet 8, exhaust outlet 8 is the outside convergence cylinder that shrinks of interior diameter with the noise reduction layer, and exhaust outlet 8 is interior convergence cylinder with noise reduction layer 9.
Claims (3)
1. flow-mixing blower fan blast device is characterized in that: comprise the centrifugal impeller and the exit guide vane that all are installed in the outer cylinder body, the air supply direction of centrifugal impeller is vertical with the air supply direction of exit guide vane.
2. a kind of flow-mixing blower fan blast device according to claim 1, it is characterized in that: described centrifugal impeller is cast aluminium alloy casting machine aerofoil profile.
3. a kind of flow-mixing blower fan blast device according to claim 1, it is characterized in that: described exit guide vane is the twisted blade formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558930 CN202900707U (en) | 2012-10-29 | 2012-10-29 | Air supply device of mixed flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558930 CN202900707U (en) | 2012-10-29 | 2012-10-29 | Air supply device of mixed flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900707U true CN202900707U (en) | 2013-04-24 |
Family
ID=48121384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558930 Expired - Fee Related CN202900707U (en) | 2012-10-29 | 2012-10-29 | Air supply device of mixed flow blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900707U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334940A (en) * | 2013-06-24 | 2013-10-02 | 永济新时速电机电器有限责任公司 | Inclined flow ventilator for subway locomotive filter reactor |
| CN104948502A (en) * | 2014-03-26 | 2015-09-30 | 陈玉沛 | Flow guide device of centrifugal impeller |
| CN104534494B (en) * | 2014-11-20 | 2017-01-25 | 陈乾新 | Mixed flow fan type integrated dust remover |
| CN111237217A (en) * | 2018-11-29 | 2020-06-05 | 曾固 | Fluid centrifugal through-flow action structure |
-
2012
- 2012-10-29 CN CN 201220558930 patent/CN202900707U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334940A (en) * | 2013-06-24 | 2013-10-02 | 永济新时速电机电器有限责任公司 | Inclined flow ventilator for subway locomotive filter reactor |
| CN104948502A (en) * | 2014-03-26 | 2015-09-30 | 陈玉沛 | Flow guide device of centrifugal impeller |
| CN104948502B (en) * | 2014-03-26 | 2017-09-01 | 陈玉沛 | The guiding device of receded disk impeller |
| CN104534494B (en) * | 2014-11-20 | 2017-01-25 | 陈乾新 | Mixed flow fan type integrated dust remover |
| CN111237217A (en) * | 2018-11-29 | 2020-06-05 | 曾固 | Fluid centrifugal through-flow action structure |
| CN111237217B (en) * | 2018-11-29 | 2022-08-30 | 曾固 | Fluid centrifugal through-flow action structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131029 |