CN204984883U - Shock attenuation air -blower of making an uproar falls - Google Patents
Shock attenuation air -blower of making an uproar falls Download PDFInfo
- Publication number
- CN204984883U CN204984883U CN201520328342.6U CN201520328342U CN204984883U CN 204984883 U CN204984883 U CN 204984883U CN 201520328342 U CN201520328342 U CN 201520328342U CN 204984883 U CN204984883 U CN 204984883U
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- China
- Prior art keywords
- casing
- air
- noise reduction
- blower
- elastic element
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Abstract
The utility model relates to a shock attenuation air -blower of making an uproar falls, including casing and base, the externally mounted of casing has the puigging, and the air intake of casing is equipped with air intake buffering air cavity, and the air outlet of casing is equipped with air outlet buffering air cavity, the air outlet is equipped with the air current muffler, be equipped with damping device down between casing and the base. The beneficial effects of the utility model are that: because the mode was connected to the casing about the fan casing adopted, go up casing casting as an organic whole and form, withstand voltage degree is high, and it is effectual to give sound insulation to set up the puigging in the outside of casing, reduced the sound source noise of casing. Set up the air current muffler at the air outlet simultaneously, reduce the wind of air current and make an uproar, fall when having accomplished equipment with gas and make an uproar, elastic element has the buffering, inhales the effect of shaking, reduces the vibration transmission of casing and ground interfacial, makes the air -blower be in the life that stable state work has lengthened the air -blower simultaneously.
Description
Technical field
The utility model relates to a kind of blower, particularly relates to a kind of noise reduction damping 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 synchromesh gear by prime mover, make the constant speed rotation that direction is contrary, the axis being parallel of two rotors, blower enters, relief opening does not directly communicate, rotor and casing and wallboard surround closed element volume, element volume does not substantially change in operation process, in the moment that element volume is opened, pressurized gas from exhaust cavity reflux rapidly, gas pressure in element volume is raised suddenly, form gas compression thus and produce gas shock noise.The highest, the aerodynamic noise just that has the greatest impact of intensity during Roots blower runs, it in blower fan, form noise source and enter through blower, exhaust port to external radiation, serious environment pollution.Concerning one group of blower unit, the source of its noise is primarily of the vibration of housing, and flow at high speed three kinds of factors of solid conduction and gas combine.Therefore a kind of noise source of simple control does not reach good noise reduction effect, and existing equipment also lacks ripe technology in the noise abatement of Roots blower.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of noise reduction damping blower, is reduced the noise of blower by control pneumatic noise and separating vibration.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of noise reduction damping blower, comprise housing and pedestal, major and minor rotating shaft is provided with in described housing, intermeshing impeller is equipped with in described major and minor rotating shaft, it is characterized in that: described housing is docked by upper shell and lower shell body and forms, the joint of described upper shell and described lower shell body is provided with seal ring, the outside of described housing is provided with puigging, the intake grill of described housing is provided with intake grill buffering air cavity, and the exhaust outlet of described housing is provided with exhaust outlet buffering air cavity; Described exhaust outlet is provided with silencer for gas flow; Damping device is provided with between described lower shell body and described pedestal.
Further: described damping device comprises two steel cushion blocks and an elastic element, described elastic element is located between two described steel cushion blocks.
The beneficial effects of the utility model are: 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, reduce the Sound source noise of housing.Arrange silencer for gas flow at exhaust outlet, the wind reducing air-flow is made an uproar, noise reduction while having accomplished equipment and gas simultaneously; Elastic element has the effect of buffering, absorbing, reduces the vibration passing between housing and ground, makes blower be in working life that steady operation extends blower simultaneously.
Further: described intake grill is sped structure; Described exhaust outlet is sped structure.
The beneficial effect of above-mentioned further scheme is: owing to have employed sped structure into and out of air port and into and out of cushion gas chamber, air port, inlet gas is guided to enter aspirated volume continuously, pressurized gas are gently back to low pressure air suction chamber, significantly cut down the impact noise of air-flow.
Further: described puigging is that sound-absorption glass is cotton.
Further: the inwall of described silencer for gas flow is evenly provided with the lug boss of multiple ring-type; Each described lug boss is the cotton material of sound-absorption glass.
The beneficial effect of above-mentioned further scheme is: annular projection portion while both having ensured the absorption noise of maximum area also can not barrier gas flowing thus affect the working efficiency of blower.
Further: described elastic element is that quality of rubber materials is made, the upper and lower end face of described elastic element is inlaid in described steel cushion block respectively.
The beneficial effect of above-mentioned further scheme is: the long service life of rubber material, easy for installation.
Further: described elastic element is spring, described spring and described steel cushion block are bolted.
The beneficial effect of above-mentioned further scheme is: buffering, the damping performance of spring are good.
Further: described impeller is triplicate blade impeller.
The beneficial effect of above-mentioned further scheme is: triplicate blade impeller improves pulse frequency and the intensity of air-flow, makes breathing action milder, good seal performance, thus improves the volumetric efficiency of blower, reduces volume ratio energy, reaches energy-conservation object.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial sectional view of the utility model silencer for gas flow;
Fig. 3 is the partial sectional view of the utility model embodiment one damping device;
Fig. 4 is the partial sectional view of the utility model embodiment two damping device;
In figure 1, impeller; 2, upper shell; 3, lower shell body; 4, puigging; 5, intake grill; 6, intake grill buffering air cavity; 7, exhaust outlet; 8, exhaust outlet buffering air cavity; 9, silencer for gas flow; 10, pedestal; 11, damping device; 12, steel cushion block; 13, elastic element; 14, spring; 15, lug boss.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment one as shown in Figure 1, Figure 2, Figure 3 shows, a kind of noise reduction damping blower, comprise housing and pedestal 10, major and minor rotating shaft is provided with in described housing, intermeshing impeller 1 is equipped with in described major and minor rotating shaft, described housing is docked by upper shell 2 and lower shell body 3 and forms, described upper shell 2 is provided with seal ring with the joint of described lower shell body 3, the outside of described housing is provided with puigging 4, the intake grill 5 of described housing is provided with intake grill buffering air cavity 6, and the exhaust outlet 7 of described housing is provided with exhaust outlet buffering air cavity 8; Described exhaust outlet 7 is provided with silencer for gas flow 9; Damping device 11 is provided with between described lower shell body 3 and described pedestal 10.Described damping device 11 comprises two steel cushion blocks 12 and an elastic element 13, and described elastic element 13 is located between two described steel cushion blocks 12.Described intake grill 5 is sped structure; Described exhaust outlet 7 is sped structure.Described puigging 4 is that sound-absorption glass is cotton.The inwall of described silencer for gas flow 9 is evenly provided with the lug boss 15 of multiple ring-type; Each described lug boss 15 is the cotton material of sound-absorption glass.Described elastic element 13 is made for quality of rubber materials, and the upper and lower end face of described elastic element 13 is inlaid in described steel cushion block 12 respectively; Described impeller 1 is preferably triplicate blade impeller.
Embodiment two as shown in Figure 4, a kind of noise reduction damping blower, comprise housing and pedestal 10, be provided with major and minor rotating shaft in described housing, intermeshing impeller 1 is equipped with in described major and minor rotating shaft, described housing is docked by upper shell 2 and lower shell body 3 and forms, described upper shell 2 is provided with seal ring with the joint of described lower shell body 3, the outside of described housing is provided with puigging 4, and the intake grill 5 of described housing is provided with intake grill buffering air cavity 6, and the exhaust outlet 7 of described housing is provided with exhaust outlet buffering air cavity 8; Described exhaust outlet 7 is provided with silencer for gas flow 9; Damping device 11 is provided with between described lower shell body 3 and described pedestal 10.Described damping device 11 comprises two steel cushion blocks 12 and an elastic element 13, and described elastic element 13 is located between two described steel cushion blocks 12.Described intake grill 5 is sped structure; Described exhaust outlet 7 is sped structure.Described puigging 4 is that sound-absorption glass is cotton.The inwall of described silencer for gas flow 9 is evenly provided with the lug boss 15 of multiple ring-type; Each described lug boss 15 is the cotton material of sound-absorption glass.Described impeller 1 is preferably triplicate blade impeller.Described elastic element 13 is spring 14, and described spring 14 is bolted with described steel cushion block 12.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a noise reduction damping blower, comprise housing and pedestal (10), master is provided with in described housing, auxiliary spindle, described master, intermeshing impeller (1) auxiliary spindle is equipped with, it is characterized in that: described housing is docked by upper shell (2) and lower shell body (3) and forms, described upper shell (2) is provided with seal ring with the joint of described lower shell body (3), the outside of described housing is provided with puigging (4), the intake grill (5) of described housing is provided with intake grill buffering air cavity (6), the exhaust outlet (7) of described housing is provided with exhaust outlet buffering air cavity (8), described exhaust outlet (7) is provided with silencer for gas flow (9), damping device (11) is provided with between described lower shell body (3) and described pedestal (10).
2. a kind of noise reduction damping blower according to claim 1, it is characterized in that: described damping device (11) comprises two steel cushion blocks (12) and an elastic element (13), described elastic element (13) is located between two described steel cushion blocks (12).
3. a kind of noise reduction damping blower according to claim 2, is characterized in that: described intake grill (5) is sped structure; Described exhaust outlet (7) is sped structure.
4. a kind of noise reduction damping blower according to claim 2, is characterized in that: described puigging (4) is sound-absorption glass cotton.
5. a kind of noise reduction damping blower according to any one of claim 2 to 4, is characterized in that: the inwall of described silencer for gas flow (9) is evenly provided with the lug boss (15) of multiple ring-type; Each described lug boss (15) is the cotton material of sound-absorption glass.
6. a kind of noise reduction damping blower according to claim 5, it is characterized in that: described elastic element (13) is made for quality of rubber materials, and the upper and lower end face of described elastic element (13) is inlaid in described steel cushion block (12) respectively.
7. a kind of noise reduction damping blower according to claim 5, is characterized in that: described elastic element (13) is spring (14), and described spring (14) and described steel cushion block (12) are bolted.
8. a kind of noise reduction damping blower according to claim 5, is characterized in that: described impeller (1) is triplicate blade impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328342.6U CN204984883U (en) | 2015-05-19 | 2015-05-19 | Shock attenuation air -blower of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328342.6U CN204984883U (en) | 2015-05-19 | 2015-05-19 | Shock attenuation air -blower of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984883U true CN204984883U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328342.6U Expired - Fee Related CN204984883U (en) | 2015-05-19 | 2015-05-19 | Shock attenuation air -blower of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973391A (en) * | 2019-05-05 | 2019-07-05 | 烟台菱辰能源有限公司 | A kind of denoising device of Roots's air compressor machine for fuel cell |
-
2015
- 2015-05-19 CN CN201520328342.6U patent/CN204984883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973391A (en) * | 2019-05-05 | 2019-07-05 | 烟台菱辰能源有限公司 | A kind of denoising device of Roots's air compressor machine for fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |