CN203463293U - Low noise air blower - Google Patents
Low noise air blower Download PDFInfo
- Publication number
- CN203463293U CN203463293U CN201320590078.4U CN201320590078U CN203463293U CN 203463293 U CN203463293 U CN 203463293U CN 201320590078 U CN201320590078 U CN 201320590078U CN 203463293 U CN203463293 U CN 203463293U
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- Prior art keywords
- housing
- blower
- low noise
- air blower
- noise
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Abstract
The utility model relates to an air blower, in particular to a low noise air blower. The low noise air blower comprises an air blower housing, wherein a main rotation shaft and an auxiliary rotation shaft are arranged inside the housing; impellers, which are mutually meshed, are mounted on the rotation shaft; an air inlet and an air outlet are formed in the air blower housing; the air blower housing is formed by performing abutting jointing on an upper housing and a lower housing; a sealing ring is arranged on the connection position of the upper housing the lower housing; a sound insulation layer is mounted outside the air blower housing; an airflow silencer is arranged on the air outlet; a shock absorption rubber gasket is arranged between the lower housing and a base. The low noise air blower has high pressure resistance degree and good sound insulation effect; the sound insulation layer is arranged outside the shell, so that the sound source noise of the housing is reduced. The airflow silencer is arranged on the air outlet, the wind noise of airflow is reduced, simultaneous noise reduction of a device and gas is achieved, the effect is obvious, and the improvement investment cost of the device is small.
Description
Technical field
The utility model relates to blower, specifically a kind of low noise blower.
Background technique
Roots blower is widely used in all trades and professions, it is a kind of two-spool compressor tool, two rotors are driven by a pair of synchromesh gear by prime mover, make the constant speed rotation of opposite direction, the axis of two rotors is parallel, blower enters, relief opening does not directly communicate, rotor and casing and wallboard surround the element volume of sealing, element volume does not substantially change in operation process, the moment of opening at element volume, pressurized gas from exhaust cavity reflux rapidly, gas pressure in element volume is raise suddenly, form thus gas compression and produce gas shock noise.The aerodynamic noise just that Roots blower intensity in service is the highest, have the greatest impact, it in blower fan, form noise source and through blower enter, exhaust port is to external radiation, serious environment pollution.Concerning one group of blower unit, the source of its noise is mainly by the vibrations of housing, and three kinds of factors of flow at high speed of solid conduction and gas combine.Therefore a kind of noise source of simple control is not reach good noise reduction effect, and existing equipment is also lacking ripe technology aspect the noise abatement of Roots blower.
Model utility content
The purpose of this utility model, is exactly the problem existing for solving prior art, and has designed a kind of low noise blower, by shell vibrating and pneumatic noise are controlled simultaneously, reaches good noise reduction effect.
The technical solution of the utility model is: a kind of low noise blower, comprise blower casing, in housing, be provided with major and minor rotating shaft, the intermeshing impeller being equipped with in rotating shaft, the intake grill of Blower Housing and exhaust outlet, being formed by upper shell and lower shell body docking of described Blower Housing, the joint of upper and lower casing is provided with seal ring; The outside of described Blower Housing is provided with puigging; Described exhaust outlet is provided with silencer for gas flow; Between described lower shell body and pedestal, be provided with yielding rubber pad.
Described active impeller and driven impeller are four blade profiles, and the two engagement line style is circular arc line, at engagement place circular arc line, is mutual superpacket winding thread.
In order to eliminate the wind of air-out air-flow, make an uproar, described silencer for gas flow comprises the acoustical panel that built-in multilayer is evenly arranged, and is filled with sound-absorption glass cotton between described acoustical panel.
In order to reduce the vibrations noise of Blower Housing, the outside puigging of described Blower Housing is that sound-absorption glass is cotton.
In order to make to import and export wind and to be spaced from each other in vane rotary process, there is no interior pressure by the gas in air cavity and push to exhaust outlet by air-inlet cavity, described inlets and putlets of ventilation is sped structure.
The beneficial effects of the utility model can draw by such scheme: because Blower Housing adopts upper-lower casing connection mode, upper shell is integrated casting and forms, and withstand voltage degree is high, and soundproof effect is good, and at the outer installment puigging of housing, reduced the Sound source noise of housing.At exhaust outlet, silencer for gas flow is set, reduces the wind of air-flow and make an uproar simultaneously, noise reduction when having accomplished equipment and gas, successful, and also Plant reconstruction plant modernization infusion of financial resources is little, applicable to the transformation of all kinds of blowers.As can be seen here, the utility model compared with prior art has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Wherein, 1 is exhaust outlet, and 2 is silencer for gas flow, and 3 is acoustical panel, and 4 is puigging, and 5 is intake grill, and 6 is upper shell, and 7 is that sound-absorption glass is cotton, and 8 is lower shell body, and 9 is yielding rubber pad, and 10 is pedestal.
embodiment:
In order to understand better the utility model, below in conjunction with accompanying drawing, explain in detail mode of execution of the present utility model.
Embodiment: as shown in Figure 1, a kind of low noise blower, comprises blower casing, and engine housing comprises upper shell 6 and lower shell body 8, and the joint of upper and lower casing is provided with seal ring.Upper and lower casing is integrally casting and forms, in housing, be provided with major and minor rotating shaft, the intermeshing impeller being equipped with in rotating shaft, described active impeller and driven impeller are four blade profiles, the two engagement line style is circular arc line, at engagement place circular arc line, is mutual superpacket winding thread.The top of Blower Housing is provided with exhaust outlet 1, and bottom is provided with intake grill 5.The outside of described Blower Housing is provided with puigging 4, is filled with sound-absorption glass cotton 7 in puigging 4.Described exhaust outlet 1 is provided with silencer for gas flow 2, and silencer for gas flow 2 comprises the acoustical panel 3 that built-in multilayer is evenly arranged, and is filled with sound-absorption glass cotton between described acoustical panel.Between lower shell body and pedestal 10, be provided with yielding rubber pad 9.
Above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (6)
1. a low noise blower, comprise blower casing, in housing, be provided with major and minor rotating shaft, the intermeshing impeller being equipped with in rotating shaft, the intake grill of Blower Housing and exhaust outlet, it is characterized in that: being formed by the docking of upper shell and lower shell body of described Blower Housing, the joint of upper and lower casing is provided with seal ring; The outside of described Blower Housing is provided with puigging; Described exhaust outlet is provided with silencer for gas flow; Between described lower shell body and pedestal, be provided with yielding rubber pad.
2. low noise blower as claimed in claim 1, is characterized in that: described active impeller and driven impeller are four blade profiles, and the two engagement line style is circular arc line, at engagement place circular arc line, is mutual superpacket winding thread.
3. low noise blower as claimed in claim 2, is characterized in that: described silencer for gas flow comprises the acoustical panel that built-in multilayer is evenly arranged.
4. low noise blower as claimed in claim 3, is characterized in that: between described acoustical panel, be filled with sound-absorption glass cotton.
5. low noise blower as claimed in claim 2, is characterized in that: the outside puigging of described Blower Housing is that sound-absorption glass is cotton.
6. low noise blower as claimed in claim 2, is characterized in that: described inlets and putlets of ventilation is sped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590078.4U CN203463293U (en) | 2013-09-24 | 2013-09-24 | Low noise air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590078.4U CN203463293U (en) | 2013-09-24 | 2013-09-24 | Low noise air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463293U true CN203463293U (en) | 2014-03-05 |
Family
ID=50175661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590078.4U Expired - Fee Related CN203463293U (en) | 2013-09-24 | 2013-09-24 | Low noise air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715567A (en) * | 2016-03-07 | 2016-06-29 | 苏州保酚环境科技有限公司 | Low-noise ventilator |
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
-
2013
- 2013-09-24 CN CN201320590078.4U patent/CN203463293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715567A (en) * | 2016-03-07 | 2016-06-29 | 苏州保酚环境科技有限公司 | Low-noise ventilator |
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
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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 |
Granted publication date: 20140305 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |