CN105736478A - Sound insulation and noise reduction device of draught fan - Google Patents
Sound insulation and noise reduction device of draught fan Download PDFInfo
- Publication number
- CN105736478A CN105736478A CN201610192383.6A CN201610192383A CN105736478A CN 105736478 A CN105736478 A CN 105736478A CN 201610192383 A CN201610192383 A CN 201610192383A CN 105736478 A CN105736478 A CN 105736478A
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- sound insulation
- noise reduction
- blower fan
- reduction device
- fan body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a sound insulation and noise reduction device of a draught fan. The sound insulation and noise reduction device comprises a motor air opening silencer, a coupler silencer, a soft coupling sound insulation jacket, a draught fan body sound insulation jacket and an air flue sound insulation package, wherein the motor air opening silencer is arranged at the position of an air opening of a motor so as to conduct noise reduction on inlet and outlet air of the draught fan, the coupler silencer is arranged on a coupler connected with the motor and a draught fan body so as to conduct noise reduction on the coupler, the soft coupling sound insulation jacket is arranged on a ventilation channel between the draught fan body and an air flue so as to conduct sound insulation and noise reduction on an air flue soft coupling, the draught fan body sound insulation jacket is arranged on the draught fan body so as to conduct sound insulation and noise reduction on the draught fan body, and the air flue is wrapped by the air flue sound insulation package so as to conduct sound insulation and noise reduction on the air flue. According to the sound insulation and noise reduction device of the draught fan, various noise sources can be effectively insulated and reduced in a targeted manner, the appearance is attractive, space is saved, and overhauling and maintaining are more convenient.
Description
Technical field
The present invention relates to blower fan field, particularly to be the sound insulation and noise reduction device of blower fan.
Background technology
Showing according to relevant information, the main harm of human body is damage auditory system by noise.When noise intensity is more than 100 decibels, acoustic trauma can be caused.Slight acoustic trauma main manifestations is mild tinnitus, if developing further, can affect language audition to a certain extent, causing in work, study, life and feel hypoacusia.Sometimes it is complete deafness that once strong noise can cause temporary two ears, feels violent tinnitus simultaneously and has dizziness.Additionally, human body other system is also had impact by noise, main manifestations is headache, dizziness, insomnia, dreaminess, hypomnesis, even occurs that unstable blood pressure is determined or acra blood supply insufficiency, Dystrophy, arrhythmia etc. occur.Therefore, slight elevated noise is administered, circumstance can be improved, it is ensured that be physically and mentally healthy.
The noise source of blower fan mainly has the following aspects: the air power noise that Induction and exhaust noises and airflow passes body produce；Transaudient from rigidity such as body surface radiated noise and pipelines；Impact when pressing members runs, friction and the mechanical noise that produces；The airflow strikes of pressuring machine air inlet/outlet pipeline, the noise radiated from body and pipe surface etc.；By the motor cooling electromagnetic noise that between the pneumatic noise of fan, rotor, magnetic field pulsation causes, and the mechanical noise that bearing high speed rotating produces.
Blower fan tradition noise reduction measure includes: 1, fan body periphery installs acoustic hood additional, leaves access path and heat-dissipating space, average noise reduction >=20dB (A)；2, motor body periphery installs acoustic hood additional, leaves access path and heat-dissipating space, average noise reduction >=20dB (A)；3, the pneumatic noise in air channel and pipeline are transaudient, wrap up thickness at air duct surfaces and will arrive 100-300mm sound-absorbing material, outermost layer 0.75-1mm galvanized steel plain sheet wrapping.Average noise reduction >=10dB (A).
But, blower fan tradition noise reduction has the disadvantage in that every poor effect of making an uproar；Fan body and motor portion adopt acoustic hood, make troubles to repair and maintenance；Acoustic hood dismounting inconvenience；Occupy a large amount of site space；Investment is big, operating cost is high；Impact is on-the-spot attractive in appearance.
Summary of the invention
The technical problem to be solved is to provide a kind of blower fan sound insulation and noise reduction device, can pointedly to the effective sound insulation and noise reduction of each noise source, and easy access is safeguarded.
For solving the problems referred to above, the present invention proposes a kind of blower fan sound insulation and noise reduction device, including:
Motor air port deafener, is arranged on the air port place of motor, so that blower fan air inlet/outlet is carried out sound insulation and noise reduction；
Shaft coupling deafener, is arranged on the shaft coupling that motor is connected with fan body, so that shaft coupling is carried out sound insulation and noise reduction；
Be flexible coupling sound insulation jacket, is arranged on the vent passages between fan body and air channel, carries out sound insulation and noise reduction so that air channel to be flexible coupling；
Fan body sound insulation jacket, is arranged in fan body, so that fan body is carried out sound insulation and noise reduction；And acoustical duct parcel, it is wrapped on air channel, air channel is carried out sound insulation and noise reduction to described.
According to one embodiment of present invention, described motor air port deafener includes:
Framework, the air port coordinating motor external connects；
Multiple baffling passages, are arranged in framework, so that the air inlet/outlet baffling in this air port passes through；
Sound-absorbing material, is arranged in baffling passage.
According to one embodiment of present invention, the plurality of baffling passage is formed by the arrangement of multiple baffling abatvoixs, and each described baffling abatvoix has at least one kink, and the dual-side of described baffling abatvoix connects framework respectively.
According to one embodiment of present invention, described shaft coupling deafener includes:
Support, relative shaft coupling is fixing to be connected；
Flexible sound insulation jacket, is arranged on shaft coupling position, and it is peripheral to be positioned at described support.
According to one embodiment of present invention, described shaft coupling deafener also includes elastic damping pad, is arranged between described flexible sound insulation jacket and shaft coupling.
According to one embodiment of present invention, described fan body sound insulation jacket includes:
Support, is arranged in fan body；
Flexible sound insulation jacket, is divided into polylith to be arranged in described fan body according to blower fan overall dimensions.
According to one embodiment of present invention, described acoustical duct includes:
Puigging, is wrapped on air channel；
Flexible decorative cloth, wraps described puigging, and and has fixing connecting portion between described puigging to decorate described puigging.
According to one embodiment of present invention, connected by peg between described puigging and flexible decorative cloth, described peg implants air channel and fan body surface, described puigging and flexible decorative cloth, is connected to form described fixing connecting portion by stator and described peg are fixing.
According to one embodiment of present invention, described puigging includes the Damping material layer, sound-absorbing material layer and the sound insulating material layer that arrange from the inside to the outside.
According to one embodiment of present invention, described puigging also includes adhesive linkage, is arranged on the surface of described Damping material layer described attractive material layer dorsad.
According to one embodiment of present invention, the opening that also includes being opened on device and coordinate described opening to connect the door to open or to close described opening.
According to one embodiment of present invention, described door includes:
Metal grill framework, is connected on described opening one side and this side is rotatable relatively；
Insulation material layer, is arranged on described metal grill framework；
Flexible decorative cloth, wraps described metal grill framework and described insulation material layer.
After adopting technique scheme, the present invention has the advantages that compared to existing technology and arranges motor air port deafener at the air port place that motor is external, if this air port is air inlet, air intake is carried out noise reduction, motor is used for built-in motor, motor can generate heat in running, and arranging motor air port deafener neither affects motor radiating at motor air port place Induction and exhaust noises can play again the function of sound insulation and noise reduction；Shaft coupling arranges shaft coupling deafener, it is possible to the mechanical noise that high speed rotating is produced carries out noise reduction；Internal ventilating passages between fan body and shaft coupling is arranged and is flexible coupling sound insulation jacket, it is possible to airflow passes body is produced air power noise and rigidity is transaudient carries out sound insulation and noise reduction from body surface radiated noise and pipeline etc.；Fan body arranges fan body sound insulation jacket, it is possible to the pneumatic noise of fan, the noise that radiates from body and pipe surface etc. are carried out sound insulation and noise reduction；The air channel of fan body arranges acoustical duct parcel, when fan body air-out, then air channel is exhaust air flue, it is possible to air power noise that the airflow passes body in air channel is produced and rigidity is transaudient carries out sound insulation and noise reduction from body surface radiated noise and pipeline etc..By arranging corresponding sound insulation denoising parts pointedly, it is possible to effectively remove or alleviate the noise of complete blower, and various piece is easily disassembled, it is easy to maintenance, repeatable utilization again, reduces production cost, also take up room unlike the blimp of integral type, space-saving and comparatively attractive in appearance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the blower fan sound insulation and noise reduction device of the embodiment of the present invention；
Fig. 2 a is the structural representation of the motor of the embodiment of the present invention；
Fig. 2 b is the structural representation of motor air port deafener on the motor of the embodiment of the present invention；
The structural representation that Fig. 3 a is the shaft coupling of the embodiment of the present invention and support connects；
Fig. 3 b is the structural representation of the shaft coupling upper coupling deafener of the embodiment of the present invention；
Fig. 4 is the anatomical structure schematic diagram of the blower fan fan body sound insulation jacket of the embodiment of the present invention；
Fig. 5 is the structural representation of the door of the blower fan sound insulation and noise reduction device of the embodiment of the present invention.
Description of symbols in figure:
A-motor, B-fan body, C-air channel, 1-motor air port deafener, 2-shaft coupling deafener, 3-is flexible coupling sound insulation jacket, 4-fan body sound insulation jacket, and 5-acoustical duct wraps up, 6-is flexible coupling sound insulation jacket, 7-door, 11-framework, 12-baffling passage, 13-sound-absorbing material, 21-support, 41-support, 421-Damping material layer, 422-sound-absorbing material layer, 423-insulation material layer, 43-flexible decorative cloth, 44-peg, 71-metal grill framework.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can implement being much different from alternate manner described here, and those skilled in the art can do similar popularization when without prejudice to intension of the present invention, therefore the present invention is by the following public restriction being embodied as.
Referring to Fig. 1, the blower fan sound insulation and noise reduction device of the present embodiment, including motor air port deafener, shaft coupling deafener, be flexible coupling sound insulation jacket, and fan body sound insulation jacket and acoustical duct wrap up.Blower fan includes motor A and fan body B and the coupling part of motor A and fan body B, and motor drives fan body to rotate by rotating shaft, and blower fan can be outside air-out or inside air intake.
Wherein, referring to Fig. 2 a, motor air port deafener 1 is arranged on air port (another air port is the air port facing to fan body) place external for motor A, so that air port air inlet/outlet is carried out noise reduction, owing to motor A operationally temperature can uprise, thus parcel can not be carried out simply and carry out sound-insulation, under not affecting motor A proper heat reduction situation, air inlet or air outlet at motor A arrange motor air port deafener 1, and fan and motor body seam mouth carry out deadening fabric bag noise reduction process.
Concrete, referring to Fig. 2 b, motor air port deafener 1 includes framework 11, multiple baffling passage 12 and sound-absorbing material 13.The air port that framework 11 coordinates motor external connects, namely framework 11 is arranged on edge, air port, baffling passage 12 is arranged in framework 11, multiple baffling passages 12 can be arranged by uniform intervals, baffling passage 12 can make the air inlet/outlet in air port be changed into baffling wind from direct current wind, sound-absorbing material 13 is arranged at least one wall in baffling passage 12, preferably, sound-absorbing material 13 is arranged on two sidewalls of all baffling passages 12, these two sidewalls are much larger than the upper lower wall of baffling passage 12, sound-absorbing material 13 is set and can carry out noise reduction by the wind that passes through of doubling stream, sound-absorbing material 13 is such as Cotton Gossypii, but it is not limited to this.
Preferably, multiple baffling passages 12 are intervally arranged formation by multiple baffling abatvoixs, and each baffling abatvoix has at least one kink, and the dual-side of baffling abatvoix is along connecting framework 11 respectively.It is furthermore preferred that each baffling abatvoix disconnects at kink place, thus the wind of baffling can turn in other baffling passages 12 continues flowing.Baffling passage 12 makes the impulsive force of the wind in air port reduce, thus reducing noise, playing the effect of sound-deadening and noise-reducing, but not affecting the heat radiation of motor.
Optionally, motor air port deafener 1 also includes volume adjusting apparatus (not shown), regulates the intake of motor inlet and outlet, and obtaining suitable air quantity when not affecting work, can reach best noise reduction.
Referring to Fig. 3 b, machine shaft is connected by shaft coupling D with fan shaft, and motor drives blower fan to rotate by rotating shaft and shaft coupling D, and shaft coupling deafener 2 is arranged on the shaft coupling D that machine shaft is connected with fan shaft, carries out noise reduction with the rotation to shaft coupling.Shaft coupling deafener 2 can configure according to on-the-spot noise data and actual size.
Referring to Fig. 3 a, concrete, shaft coupling deafener 2 includes: support 21, puigging and flexible decorative cloth.The relative shaft coupling D of support 21 is fixing to be connected, and namely follows rotation along with the rotation of shaft coupling D；Puigging packaging is arranged on shaft coupling D, and be arranged in support 21 or be positioned at support 21 may pass through position；Flexible decorative cloth wraps support 21, and and has fixing connecting portion between puigging to support puigging.
The support 21 of shaft coupling deafener 2 can be formed by fixing bolt is fixing for rustless steel keel bracket.Preferably, shaft coupling deafener 2 also includes elastic damping pad, is arranged between puigging and shaft coupling D, and under support 21, resilient cushion member can alleviate vibration when shaft coupling D rotates, and then reduces vibration noise.
The puigging of shaft coupling deafener 2 includes the Damping material layer, sound-absorbing material layer and the sound insulating material layer that arrange from the inside to the outside.Sound-absorbing material layer is preferably high-efficiency sound-absorbing material, and insulation material layer is such as sound-insulating felt.The flexible decorative cloth of shaft coupling deafener, on the one hand as outer protective decorative layer, is wrapped in wherein to fix by internal deadener on the other hand, and the device after parcel is referring to Fig. 3 b.
The sound insulation jacket 6 that is flexible coupling is arranged on the vent passages between fan body B and air channel C, carries out sound insulation so that air channel to be flexible coupling.The sound insulation jacket 3 that is flexible coupling packaging is arranged on the internal ventilating passages between fan body B and shaft coupling D, and so that air channel is carried out sound insulation, the sound insulation jacket 6 and 3 that is flexible coupling such as can also pass through sound absorbing layer or puigging and flexible decorative cloth is formed.
Referring to Fig. 4, blower fan sound insulation jacket 4 is arranged on fan body B, so that fan body B is carried out sound insulation.Concrete, blower fan sound insulation jacket 4 includes: support 41, puigging and flexible decorative cloth 43.Support 41 is arranged on outside fan body B；Puigging becomes polylith to be arranged on fan body B according to fan body sized divisions, and is positioned on support 41；Flexible decorative cloth 43 wraps support 41, and and has fixing connection between sound absorbing layer or puigging.
Axial flow blower periodic inspection, for easy accessibility, does support on axial flow blower body, and support is installed sound insulation jacket, and sound insulation jacket can carry out segmentation polylith sound insulation jacket according to axial flow blower size, and flexible sound insulation jacket is detachable.The sound absorbing layer of acoustical duct parcel 4 or puigging include the Damping material layer 421, sound-absorbing material layer 422 and the sound insulating material layer 423 that arrange from the inside to the outside.All the other contents and the flexible decorative cloth of sound absorbing layer or puigging referring to foregoing teachings, can not repeat them here.
Referring to Fig. 1, acoustical duct parcel 5 parcel is contained on the air channel of blower fan B, so that air channel is carried out sound insulation and noise reduction.Acoustical duct parcel 5 includes: sound absorbing layer or puigging and flexible decorative cloth.Sound absorbing layer or puigging are packaged on air channel；Flexible decorative cloth wraps sound absorbing layer or puigging.
Connect it is also preferred that the left peg 44 all can be passed through between aforesaid sound absorbing layer or puigging and flexible decorative cloth, peg 44 implanting device surface, sound absorbing layer or puigging and flexible decorative cloth, be fixed with peg 44 by stator and be connected to form a fixed connection.Nail can be planted inside reinforcement place.
Optionally, sound absorbing layer or puigging in previous embodiment all can also include adhesive linkage, are arranged on the surface of damping layer attractive material layer dorsad, such that it is able to facilitate bonding.
Referring to Fig. 1 and 5, blower fan sound insulation and noise reduction device also includes the opening and the cooperation opening connection door to open or to close opening that are opened on device.Blower fan sound insulation and noise reduction device offers door, it is possible to be easy to later stage checking maintenance.
Manhole door needs individually to do sound insulation and processes, it is preferred that manhole door may include that metal grill framework 71, sound-absorbing or sound insulation jacket.Metal grill framework 71 is connected on opening one side and this side is rotatable relatively；Sound insulation jacket is arranged on metal grill framework 71；Sound-absorbing or insulation material layer include the superposition material of deadener and high-efficiency sound-absorbing material.
The blower fan sound insulation and noise reduction device of the embodiment of the present invention is light, easy accessibility, attractive in appearance, reusable, the saving advantage such as space, environmental protection.
Although the present invention is with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art are without departing from the spirit and scope of the present invention; can making possible variation and amendment, therefore protection scope of the present invention should be as the criterion with the scope that the claims in the present invention define.
Claims (12)
1. a blower fan sound insulation and noise reduction device, it is characterised in that including:
Motor air port deafener, is arranged on the air port place of motor, so that blower fan air inlet/outlet is carried out noise reduction；
Shaft coupling deafener, is arranged on the shaft coupling that motor is connected with fan body, so that shaft coupling is carried out sound insulation and noise reduction；
Be flexible coupling sound insulation jacket, is arranged on the vent passages between fan body and air channel, carries out sound insulation and noise reduction so that air channel to be flexible coupling；
Fan body sound insulation jacket, is arranged in fan body, so that fan body is carried out sound insulation and noise reduction；And acoustical duct parcel, it is wrapped on air channel, air channel is carried out sound insulation and noise reduction to described.
2. blower fan sound insulation and noise reduction device as claimed in claim 1, it is characterised in that described motor air port deafener includes:
Framework, the air port coordinating motor external connects；
Multiple baffling passages, are arranged in framework, so that the air inlet/outlet baffling in this air port passes through；
Sound-absorbing material, is arranged in baffling passage.
3. blower fan sound insulation and noise reduction device as claimed in claim 2, it is characterised in that the plurality of baffling passage is formed by the arrangement of multiple baffling abatvoixs, and each described baffling abatvoix has at least one kink, and the dual-side of described baffling abatvoix connects framework respectively.
4. blower fan sound insulation and noise reduction device as claimed in claim 1, it is characterised in that described shaft coupling deafener includes:
Support, relative shaft coupling is fixing to be connected；
Flexible sound insulation jacket, is arranged on shaft coupling position, and it is peripheral to be positioned at described support.
5. blower fan sound insulation and noise reduction device as claimed in claim 4, it is characterised in that described shaft coupling deafener also includes elastic damping pad, is arranged between described flexible sound insulation jacket and shaft coupling.
6. blower fan sound insulation and noise reduction device as claimed in claim 1, it is characterised in that described fan body sound insulation jacket includes:
Support, is arranged in fan body；
Flexible sound insulation jacket, is divided into polylith to be arranged in described fan body according to blower fan overall dimensions.
7. blower fan sound insulation and noise reduction device as claimed in claim 1, it is characterised in that described acoustical duct includes:
Puigging, is wrapped on air channel；
Flexible decorative cloth, wraps described puigging, and and has fixing connecting portion between described puigging to decorate described puigging.
8. blower fan sound insulation and noise reduction device as claimed in claim 7, it is characterized in that, connected by peg between described puigging and flexible decorative cloth, described peg implants air channel and fan body surface, described puigging and flexible decorative cloth, is connected to form described fixing connecting portion by stator and described peg are fixing.
9. the blower fan sound insulation and noise reduction device as described in claim 4 or 6 or 7, it is characterised in that described puigging includes the Damping material layer, sound-absorbing material layer and the sound insulating material layer that arrange from the inside to the outside.
10. blower fan sound insulation and noise reduction device as claimed in claim 9, it is characterised in that described puigging also includes adhesive linkage, is arranged on the surface of described Damping material layer described attractive material layer dorsad.
11. blower fan sound insulation and noise reduction device as claimed in claim 1, it is characterised in that the opening that also includes being opened on device and coordinate described opening to connect the door to open or to close described opening.
12. blower fan sound insulation and noise reduction device as claimed in claim 11, it is characterised in that described door includes:
Metal grill framework, is connected on described opening one side and this side is rotatable relatively；
Insulation material layer, is arranged on described metal grill framework；
Flexible decorative cloth, wraps described metal grill framework and described insulation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192383.6A CN105736478B (en) | 2016-03-30 | 2016-03-30 | Blower sound insulation and noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192383.6A CN105736478B (en) | 2016-03-30 | 2016-03-30 | Blower sound insulation and noise reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736478A true CN105736478A (en) | 2016-07-06 |
| CN105736478B CN105736478B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610192383.6A Active CN105736478B (en) | 2016-03-30 | 2016-03-30 | Blower sound insulation and noise reduction device |
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| CN (1) | CN105736478B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401527A (en) * | 2017-08-23 | 2017-11-28 | 苏州岸肯电子科技有限公司 | A kind of blower fan silencing device |
| CN114526267A (en) * | 2020-11-23 | 2022-05-24 | 广东美的白色家电技术创新中心有限公司 | Fan and range hood |
| CN114658158A (en) * | 2022-03-30 | 2022-06-24 | 河南远航隔音材料科技有限公司 | Sound insulation structure of ceiling air conditioning unit and construction method |
| CN115111455A (en) * | 2022-06-21 | 2022-09-27 | 中国船舶重工集团公司第七0三研究所无锡分部 | Modular baffling type silencer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06117399A (en) * | 1992-10-05 | 1994-04-26 | Hitachi Ltd | Muffler device for air jetting blower |
| CN202040956U (en) * | 2011-04-13 | 2011-11-16 | 宁波惠康实业有限公司 | Noise damping device in air duct of central air conditioner |
| CN202519612U (en) * | 2012-03-30 | 2012-11-07 | 厦门厦工重工有限公司 | Low-noise sweeping dual-purpose vehicle |
| CN203442408U (en) * | 2013-07-22 | 2014-02-19 | 北京恒静禾声环保有限公司 | Damping and sound-insulating compound device for draught fan pipeline of power plant |
| CN203476739U (en) * | 2013-04-09 | 2014-03-12 | 湖南腾邦重工设备有限公司 | Low-noise mining pneumatic draught fan |
| CN203606136U (en) * | 2013-12-19 | 2014-05-21 | 中国重汽集团济南动力有限公司 | Coupling sound insulation protection device |
| CN204186653U (en) * | 2014-10-14 | 2015-03-04 | 江苏纪浩环保设备有限公司 | There is the baffling Wet-type dust-removal fan of heat radiation silencer |
| CN204226288U (en) * | 2014-09-23 | 2015-03-25 | 江苏大唐国际吕四港发电有限责任公司 | A kind of for oxidation fan cooling denoising device |
| CN104712565A (en) * | 2014-10-14 | 2015-06-17 | 江苏纪浩环保设备有限公司 | Baffling wet dust-removing fan |
| CN205639097U (en) * | 2016-03-30 | 2016-10-12 | 王刚 | Device of making an uproar falls in fan sound insulation |
-
2016
- 2016-03-30 CN CN201610192383.6A patent/CN105736478B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06117399A (en) * | 1992-10-05 | 1994-04-26 | Hitachi Ltd | Muffler device for air jetting blower |
| CN202040956U (en) * | 2011-04-13 | 2011-11-16 | 宁波惠康实业有限公司 | Noise damping device in air duct of central air conditioner |
| CN202519612U (en) * | 2012-03-30 | 2012-11-07 | 厦门厦工重工有限公司 | Low-noise sweeping dual-purpose vehicle |
| CN203476739U (en) * | 2013-04-09 | 2014-03-12 | 湖南腾邦重工设备有限公司 | Low-noise mining pneumatic draught fan |
| CN203442408U (en) * | 2013-07-22 | 2014-02-19 | 北京恒静禾声环保有限公司 | Damping and sound-insulating compound device for draught fan pipeline of power plant |
| CN203606136U (en) * | 2013-12-19 | 2014-05-21 | 中国重汽集团济南动力有限公司 | Coupling sound insulation protection device |
| CN204226288U (en) * | 2014-09-23 | 2015-03-25 | 江苏大唐国际吕四港发电有限责任公司 | A kind of for oxidation fan cooling denoising device |
| CN204186653U (en) * | 2014-10-14 | 2015-03-04 | 江苏纪浩环保设备有限公司 | There is the baffling Wet-type dust-removal fan of heat radiation silencer |
| CN104712565A (en) * | 2014-10-14 | 2015-06-17 | 江苏纪浩环保设备有限公司 | Baffling wet dust-removing fan |
| CN205639097U (en) * | 2016-03-30 | 2016-10-12 | 王刚 | Device of making an uproar falls in fan sound insulation |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401527A (en) * | 2017-08-23 | 2017-11-28 | 苏州岸肯电子科技有限公司 | A kind of blower fan silencing device |
| CN107401527B (en) * | 2017-08-23 | 2023-12-26 | 苏州岸肯电子科技有限公司 | Fan silencing device |
| CN114526267A (en) * | 2020-11-23 | 2022-05-24 | 广东美的白色家电技术创新中心有限公司 | Fan and range hood |
| CN114526267B (en) * | 2020-11-23 | 2024-01-30 | 广东美的白色家电技术创新中心有限公司 | Fan and range hood |
| CN114658158A (en) * | 2022-03-30 | 2022-06-24 | 河南远航隔音材料科技有限公司 | Sound insulation structure of ceiling air conditioning unit and construction method |
| CN115111455A (en) * | 2022-06-21 | 2022-09-27 | 中国船舶重工集团公司第七0三研究所无锡分部 | Modular baffling type silencer |
| CN115111455B (en) * | 2022-06-21 | 2023-08-11 | 中国船舶重工集团公司第七0三研究所无锡分部 | Modularized baffling type silencer |
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| CN105736478B (en) | 2019-02-26 |
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Effective date of registration: 20230223 Address after: Room 1002-A, 10th Floor, Building B, No.1 Zhongke Innovation Plaza, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province, 215000 Patentee after: Jiangsu kunsheng Environmental Technology Co.,Ltd. Address before: 025400 group 20, North Shali street, dongxicheng District, Balinzuo banner, Chifeng City, Inner Mongolia Autonomous Region Patentee before: Wang Gang Patentee before: Jiang Yanchao Patentee before: Wang Qiang |