CN216642517U - Volute casing - Google Patents
Volute casing Download PDFInfo
- Publication number
- CN216642517U CN216642517U CN202220211946.2U CN202220211946U CN216642517U CN 216642517 U CN216642517 U CN 216642517U CN 202220211946 U CN202220211946 U CN 202220211946U CN 216642517 U CN216642517 U CN 216642517U
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- CN
- China
- Prior art keywords
- sound
- plate
- sound absorption
- hole
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 62
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 239000011491 glass wool Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000011094 fiberboard Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model relates to the related technical field of centrifugal fans, in particular to a volute, which comprises a volute body, wherein an impeller cavity is formed in the volute body, a noise reduction plate is arranged on the side wall of the impeller cavity, the noise reduction plate comprises a sound absorption plate and a sound insulation plate, a second through hole is formed in the sound insulation plate, the second through hole corresponds to the first through hole, a sound absorption groove is formed in the sound insulation plate, a first through hole is formed in the sound absorption plate, a sound absorption hole is formed in the plate body of the sound absorption plate, the sound insulation plate is fixedly glued on the side wall of the impeller cavity, and the sound absorption plate is fixedly glued on the sound insulation plate; the noise reduction plate formed by combining the sound absorption plate and the sound insulation plate is arranged on the side wall of the impeller cavity, the sound absorption holes are formed in the plate body of the sound absorption plate, the sound absorption grooves are formed in the plate body of the sound insulation plate, and therefore the integral noise reduction effect of the noise reduction plate is improved through the combined action of the sound absorption plate and the sound insulation plate.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a volute.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling; ventilating and air inducing of boilers and industrial kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; the utility model provides a volute for solving the problems, and aims to solve the problems that a wind tunnel wind source and the like are adopted, but the fan cavity structure of the volute of the traditional centrifugal fan is simpler, and certain noise can be generated by fan blades of the volute when the fan runs, so that noise pollution can be caused.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a volute to solve the above problems of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a spiral case, includes the spiral case body, the impeller cavity has been seted up on the spiral case body, be provided with on the lateral wall of impeller cavity and fall the board of making an uproar, fall the board of making an uproar and include:
the sound absorption plate is provided with a first through hole, and a sound absorption hole is formed in a plate body of the sound absorption plate;
the sound insulation plate is provided with a second through hole, the second through hole is arranged corresponding to the first through hole, and the sound absorption groove is formed in the sound insulation plate;
the sound insulation board is fixedly glued on the side wall of the impeller cavity, and the sound absorption board is fixedly glued on the sound insulation board.
Preferably, the first through hole and the rotating shaft hole in the side wall of the impeller cavity are coaxially arranged, and the diameter value of the first through hole is larger than that of the rotating shaft hole.
Preferably, the sound absorption plate is a polyester fiber plate, the sound absorption holes are elongated holes with circular sections, and the sound absorption holes are uniformly provided with multiple groups on the plate body of the sound absorption plate.
Preferably, the acoustic celotex board is the rubber slab, inhale the sound groove and be regular hexagon's notch structure for the cross-section, and inhale the sound groove and evenly seted up the multiunit on the acoustic celotex board, and inhale the sound groove combination and form honeycomb structure on the acoustic celotex board.
Preferably, be provided with the first sound body of inhaling on the lateral wall of sound absorption groove, and inhale and be provided with the second on the bottom surface of sound absorption groove and inhale the sound body, the first sound body of inhaling is regular hexagon frame structure, the second is inhaled the sound body and is regular hexagon plate structure.
Preferably, the first sound-absorbing body and the second sound-absorbing body are both made of centrifugal glass wool.
Compared with the prior art, the utility model has the beneficial effects that:
1. the noise reduction plate formed by combining the sound absorption plate and the sound insulation plate is arranged on the side wall of the impeller cavity, the sound absorption hole is formed in the plate body of the sound absorption plate, and the sound absorption groove is formed in the plate body of the sound insulation plate, so that the integral noise reduction effect of the noise reduction plate is improved through the combined action of the sound absorption plate and the sound insulation plate;
2. and through set up the first sound body of inhaling on the lateral wall of inhaling the sound groove to the bottom surface of inhaling the sound groove sets up the second and inhales the sound body, and inhale the sound body with first sound body, second and all adopt centrifugal glass cotton to cast, thereby let the sound wave of noise when transmitting to inhaling among the sound groove, can inhale the cushioning effect of the sound body through the first sound body of inhaling and second, weaken with effective frequency to the sound wave, thereby reach noise pollution reduction's purpose.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a noise reduction plate structure according to the present invention;
fig. 3 is a half sectional view of a noise reduction plate.
In the figure: spiral case body 1, fall board 2, first through-hole 3, abatvoix 4, acoustic celotex board 5, sound absorbing hole 6, the first body 7, the second body 8 of inhaling sound.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a spiral case, includes spiral case body 1, has seted up the impeller cavity on the spiral case body 1, is provided with on the lateral wall of impeller cavity and falls board 2 of making an uproar, falls board 2 of making an uproar and includes:
the sound absorption plate 4 is provided with a first through hole 3, and a sound absorption hole 6 is formed in the plate body of the sound absorption plate 4;
the sound insulation board 5 is provided with a second through hole, the second through hole is arranged corresponding to the first through hole 3, and the sound absorption groove is formed in the sound insulation board 5;
The first through hole 3 and a rotating shaft hole on the side wall of the impeller cavity are coaxially arranged, and the diameter value of the first through hole 3 is larger than that of the rotating shaft hole;
the sound absorption plate 4 is a polyester fiber plate, the sound absorption holes 6 are slender holes with circular sections, and the sound absorption holes 6 are uniformly provided with a plurality of groups on the plate body of the sound absorption plate 4;
the sound insulation board 5 is a rubber board, the sound absorption grooves are of a groove opening structure with a regular hexagon cross section, a plurality of groups of sound absorption grooves are uniformly formed in the sound insulation board 5, and the sound absorption grooves on the sound insulation board 5 are combined to form a honeycomb structure;
the side wall of the sound absorption groove is provided with a first sound absorption body 7, the bottom surface of the sound absorption groove is provided with a second sound absorption body 8, the first sound absorption body 7 is in a regular hexagon frame structure, and the second sound absorption body 8 is in a regular hexagon plate structure;
the first sound-absorbing body 7 and the second sound-absorbing body 8 are both made of centrifugal glass wool;
the working principle is as follows: through set up the board 2 of making an uproar that falls that comprises acoustic panel 4 and acoustic celotex board 5 combination on the lateral wall in impeller cavity, and through set up on the plate body at acoustic panel 4 and inhale sound groove, thereby through the combined action of acoustic panel 4 and acoustic celotex board 5 in order to improve the whole noise reduction effect of making an uproar 2 of making an uproar, and through set up first sound absorption body 7 on the lateral wall at sound absorption groove, and set up second sound absorption body 8 in the bottom surface at sound absorption groove, and with first sound absorption body 7, second sound absorption body 8 all adopts centrifugal glass cotton to cast, thereby let the sound wave of noise when transmitting to sound absorption groove in, can inhale the cushioning effect of sound body 7 and second sound absorption body 8 through first sound absorption body 7, with effectively weakening the frequency of sound, thereby reach the mesh that noise pollution reduces.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a spiral case, includes spiral case body (1), the impeller cavity has been seted up on spiral case body (1), its characterized in that: be provided with on the lateral wall of impeller cavity and fall board (2) of making an uproar, fall board (2) of making an uproar and include:
the sound absorption plate (4) is provided with a first through hole (3), and a sound absorption hole (6) is formed in the plate body of the sound absorption plate (4);
the sound insulation plate (5) is provided with a second through hole, the second through hole is arranged corresponding to the first through hole (3), and the sound absorption groove is formed in the sound insulation plate (5);
the sound insulation plate (5) is fixedly glued to the side wall of the impeller cavity, and the sound absorption plate (4) is fixedly glued to the sound insulation plate (5).
2. A spiral casing as claimed in claim 1, wherein: the first through hole (3) and the rotating shaft hole in the side wall of the impeller cavity are coaxially arranged, and the diameter value of the first through hole (3) is larger than that of the rotating shaft hole.
3. A spiral casing as claimed in claim 1, wherein: the sound-absorbing board (4) is a polyester fiber board, the sound-absorbing holes (6) are long and thin holes with circular sections, and multiple groups of sound-absorbing holes (6) are uniformly formed in the board body of the sound-absorbing board (4).
4. A spiral casing as claimed in claim 3 wherein: the sound-proof board (5) is a rubber plate, the sound-absorbing grooves are of a regular-hexagon notch structure, multiple groups of sound-absorbing grooves are evenly formed in the sound-proof board (5), and the sound-absorbing grooves are combined to form a honeycomb structure on the sound-proof board (5).
5. A spiral casing as claimed in claim 4 wherein: the utility model discloses a sound absorption groove, including sound absorption groove, be provided with first sound body (7) of inhaling on the lateral wall of sound absorption groove, and be provided with the second on the bottom surface of sound absorption groove and inhale sound body (8), first sound body (7) of inhaling is regular hexagon frame structure, sound body (8) are regular hexagon plate body structure are inhaled to the second.
6. A spiral casing as claimed in claim 5 wherein: the first sound-absorbing body (7) and the second sound-absorbing body (8) are both made of centrifugal glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220211946.2U CN216642517U (en) | 2022-01-26 | 2022-01-26 | Volute casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220211946.2U CN216642517U (en) | 2022-01-26 | 2022-01-26 | Volute casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216642517U true CN216642517U (en) | 2022-05-31 |
Family
ID=81727716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220211946.2U Active CN216642517U (en) | 2022-01-26 | 2022-01-26 | Volute casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216642517U (en) |
-
2022
- 2022-01-26 CN CN202220211946.2U patent/CN216642517U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: 266300 No. 17, Xiangjiang Road, Jiaozhou economic and Technological Development Zone, Qingdao, Shandong Patentee after: Qingdao Wanyou Zhongli fan Co.,Ltd. Country or region after: China Address before: 266300 No. 17, Xiangjiang Road, Jiaozhou economic and Technological Development Zone, Qingdao, Shandong Patentee before: Qingdao dabori Intelligent Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |