CN101086265A - Centrifugal high pressure fan - Google Patents
Centrifugal high pressure fan Download PDFInfo
- Publication number
- CN101086265A CN101086265A CN 200610085812 CN200610085812A CN101086265A CN 101086265 A CN101086265 A CN 101086265A CN 200610085812 CN200610085812 CN 200610085812 CN 200610085812 A CN200610085812 A CN 200610085812A CN 101086265 A CN101086265 A CN 101086265A
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- panel
- cylindrical
- outcurve
- introversion
- casing
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Abstract
The invention relates to a ventilation equipment, particularly involves a high-pressure centrifugal fan. It includes chassis, the chassis impeller and the wind decking on the ventro-wall of chassis, the wind decking and the ventro-wall of chassis are parallel, and the structure of features: the wind decking is on the inner shell plate of the chassis fixed resistance balloon which has the role of sealing, and can effectively reduce eddy current losses and noise. The fans have the advantages of full-pressure high efficiency, low noise.
Description
Affiliated technical field
The present invention relates to a kind of ventilation equipment, particularly a kind of centrifugal high pressure fan.
Background technique
Existing centrifugal high pressure fan, one bigger space is arranged between the air intake cover plate on impeller shroud and the casing, so just reduced the sealability of centrifugal high pressure fan impeller front end office, make the internal leakage of blower fan in above-mentioned space increase, thereby increased the formation of the air whirl of impeller front end office, cause the flow losses of air-flow, increased the impact noise of the relative casing inner surface of air, and made the total pressure efficiency of blower fan obviously descend.
Summary of the invention
The object of the present invention is to provide a kind of centrifugal high pressure fan, this blower fan has total pressure efficiency height, advantage that noise is low.
The objective of the invention is to be achieved through the following technical solutions:
A kind of centrifugal high pressure fan provided by the invention, it comprises impeller in the casing, casing and the air intake cover plate on the casing return panels, the air intake cover plate parallels with the return panels of casing, and its structural feature is: the air intake cover plate is on the interior side inner panel face of casing and is fixed with the choke circle that seals, can effectively reduce eddy current loss and noise.
By above technological scheme as seen, the present invention is fixed with on the air intake cover plate is in side inner panel face in the casing and seals, can effectively reduce the choke circle of eddy current loss and noise, just occupied most of space between impeller shroud and the air intake cover plate by the choke circle like this, make the sealability of blower fan in this space be improved significantly, because above-mentioned improvement can reduce the internal leakage of blower fan, make the minimizing that circulates that portion gas produces in casing, overcome the shortcoming that air-flow is returned effectively, thereby can reduce the formation of air whirl, can reduce the flow losses of air-flow, can reduce in the blower fan because the noise that air whirl produced, and make the noise and the vortex phenomenon that produce at the blower fan fore-end reach minimum degree, like this, the fan outlet airspeed is fast, and pressure is big, total noise of centrifuge is quite low, thereby realized the reduction noise, improve the purpose of total pressure efficiency, therefore, the present invention has the total pressure efficiency height, the advantage that noise is low.
Description of drawings
Fig. 1 is embodiment 1 a structural representation;
Fig. 2 is embodiment 2 a structural representation.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1:
Referring to Fig. 1, present embodiment comprises casing (1), the choke circle, impeller (2) in the casing (1) and the air intake cover plate (3) on casing (1) return panels, air intake cover plate (3) parallels with the return panels of casing (1), seal, the choke circle that can effectively reduce eddy current loss and noise is fixed on air intake cover plate (3) and is on the interior side inner panel face of casing (1), and it be by with the cylindrical introversion panel (4) of impeller (2) coaxial line, cylindrical outcurve panel (6) and conical curved plate (5) surround, the height of cylindrical introversion panel (4) is less than the height of cylindrical outcurve panel (6), after cylindrical introversion panel (4) is sleeved in the cylindrical outcurve panel (6), one end of one end and cylindrical outcurve panel (6) all is fixed on the side inner panel face of air intake cover plate (3), conical curved plate (5) simultaneously with the other end Joint of cylindrical introversion panel (4) and cylindrical outcurve panel (6).
Embodiment 2:
Referring to Fig. 2, present embodiment comprises casing (1), the choke circle, impeller (2) in the casing (1) and the air intake cover plate (3) on casing (1) return panels, air intake cover plate (3) parallels with the return panels of casing (1), seal, the choke circle that can effectively reduce eddy current loss and noise is fixed on air intake cover plate (3) and is on the interior side inner panel face of casing (1), and it be by with the cylindrical outcurve panel (9) of impeller (2) coaxial line, conical introversion panel (7) and a ring connecting plate (8) that parallels with air intake cover plate (3) surround, conical introversion panel (7) is identical with the height of cylindrical outcurve panel (9), after conical introversion panel (7) is sleeved in the cylindrical outcurve panel (9), one end of end that its opening is little and cylindrical outcurve panel (9) all is fixed on the side inner panel face of air intake cover plate (3), ring connecting plate (8) simultaneously with the big end of conical introversion panel (7) upper shed and the other end Joint of cylindrical outcurve panel (9).
Claims (3)
1, centrifugal high pressure fan, it comprises impeller (2) in the casing (1), casing (1) and the air intake cover plate (3) on casing (1) return panels, air intake cover plate (3) parallels with the return panels of casing (1), it is characterized in that: air intake cover plate (3) is on the interior side inner panel face of casing (1) and is fixed with the choke circle that seals, can effectively reduce eddy current loss and noise.
2, centrifugal high pressure fan according to claim 1, it is characterized in that: the choke circle be by with the cylindrical introversion panel (4) of impeller (2) coaxial line, cylindrical outcurve panel (6) and conical curved plate (5) surround, the height of cylindrical introversion panel (4) is less than the height of cylindrical outcurve panel (6), after cylindrical introversion panel (4) is sleeved in the cylindrical outcurve panel (6), one end of one end and cylindrical outcurve panel (6) all is fixed on the side inner panel face of air intake cover plate (3), conical curved plate (5) simultaneously with the other end Joint of cylindrical introversion panel (4) and cylindrical outcurve panel (6).
3, centrifugal high pressure fan according to claim 1, it is characterized in that: the choke circle be by with the cylindrical outcurve panel (9) of impeller (2) coaxial line, conical introversion panel (7) and a ring connecting plate (8) that parallels with air intake cover plate (3) surround, conical introversion panel (7) is identical with the height of cylindrical outcurve panel (9), after conical introversion panel (7) is sleeved in the cylindrical outcurve panel (9), one end of end that its opening is little and cylindrical outcurve panel (9) all is fixed on the side inner panel face of air intake cover plate (3), ring connecting plate (8) simultaneously with the big end of conical introversion panel (7) upper shed and the other end Joint of cylindrical outcurve panel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610085812 CN101086265A (en) | 2006-06-06 | 2006-06-06 | Centrifugal high pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610085812 CN101086265A (en) | 2006-06-06 | 2006-06-06 | Centrifugal high pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101086265A true CN101086265A (en) | 2007-12-12 |
Family
ID=38937376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610085812 Pending CN101086265A (en) | 2006-06-06 | 2006-06-06 | Centrifugal high pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101086265A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425573A (en) * | 2011-12-14 | 2012-04-25 | 中国舰船研究设计中心 | Low-noise forward multi-wing centrifugal blower |
| CN103821767A (en) * | 2014-03-13 | 2014-05-28 | 上海诺地乐通用设备制造有限公司 | Single-stage high-speed centrifugal blower air inlet shell pouring babbitt alloy layer structure |
| CN105650031A (en) * | 2016-01-05 | 2016-06-08 | 南安市腾龙专利应用服务有限公司 | Fan with improved structure |
| CN108050102A (en) * | 2018-01-29 | 2018-05-18 | 美的集团股份有限公司 | Impeller, fan assembly and electric appliance |
| CN108151199A (en) * | 2018-01-29 | 2018-06-12 | 西安大康环保科技有限责任公司 | A kind of no pipeline fresh air air washing cleaning system |
| GB2591485B (en) * | 2020-01-30 | 2022-02-16 | Bucher Municipal Ltd | Fan system for a road sweeping vehicle |
-
2006
- 2006-06-06 CN CN 200610085812 patent/CN101086265A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425573A (en) * | 2011-12-14 | 2012-04-25 | 中国舰船研究设计中心 | Low-noise forward multi-wing centrifugal blower |
| CN103821767A (en) * | 2014-03-13 | 2014-05-28 | 上海诺地乐通用设备制造有限公司 | Single-stage high-speed centrifugal blower air inlet shell pouring babbitt alloy layer structure |
| CN105650031A (en) * | 2016-01-05 | 2016-06-08 | 南安市腾龙专利应用服务有限公司 | Fan with improved structure |
| CN105650031B (en) * | 2016-01-05 | 2018-03-13 | 南安市腾龙专利应用服务有限公司 | A kind of improved fan of structure |
| CN108050102A (en) * | 2018-01-29 | 2018-05-18 | 美的集团股份有限公司 | Impeller, fan assembly and electric appliance |
| CN108151199A (en) * | 2018-01-29 | 2018-06-12 | 西安大康环保科技有限责任公司 | A kind of no pipeline fresh air air washing cleaning system |
| GB2591485B (en) * | 2020-01-30 | 2022-02-16 | Bucher Municipal Ltd | Fan system for a road sweeping vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |