CN104110813A - Shock-absorption and noise-eliminating device at electricity generating layer ventilation opening - Google Patents
Shock-absorption and noise-eliminating device at electricity generating layer ventilation opening Download PDFInfo
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- CN104110813A CN104110813A CN201410306092.6A CN201410306092A CN104110813A CN 104110813 A CN104110813 A CN 104110813A CN 201410306092 A CN201410306092 A CN 201410306092A CN 104110813 A CN104110813 A CN 104110813A
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- absorbing
- shutter
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Abstract
The invention discloses a shock-absorption and noise-eliminating device at an electricity generating layer ventilation opening. The shock-absorption and noise-eliminating device comprises a shutter located at the electricity generating layer ventilation duct air opening, and is characterized in that shutter blades of the shutter are inclined, the shutter blades and a frame of the shutter are fixedly installed, a noise-eliminating ventilation window is arranged on the inner side of the shutter, fixedly arranged in a ventilation duct and composed of a frame and columnar noise-eliminating fences arranged in a frame area, and the frame and the columnar noise-eliminating fences are all made of surface-galvanized supermicroporous noise absorption plates. The frame and the columnar noise-eliminating fences are respectively made of at least two surface-galvanized supermicroporous noise absorption plates, wherein the position between the at least two surface-galvanized supermicroporous noise absorption plates is filled with a noise insulation layer and/or activated carbon fibers. The shock-absorption and noise-eliminating device has the advantages of being good in noise eliminating effect, light, environmentally friendly, free of secondary pollution, low in cost and easy to popularize; the position between the frame and the ventilation duct is filled with a shock absorption layer, and vibration noise generated by vibration of a wall after the shutter is installed is reduced.
Description
Technical field
The present invention relates to a kind of shock-absorbing and noise-eliminating device, particularly a kind of electric layer ventilating opening shock-absorbing and noise-eliminating device.
Background technology
Can find out by in-site measurement data, noise at electric layer ventilating opening is higher than the other noise of electric layer equipment, when unit operation, the ventilating opening noise of electric layer is up to 84.8dB(A), approach very much 85dB(A) limit value, if to final factory building, meeting up to standard has a great impact when many units are all opened, these vibration noises can work the mischief to the healthy of personnel, if propagate into the external world, also can make periphery receive noise pollution.Add the inner airduct in air grille and air channel along with metope vibrates, increase the vibration noise sending, when generating set work simultaneously, also can produce pernicious gas, necessary ventilation is very important, should meet ventilation, reduce again vibration noise, ventilating duct design silencing apparatus has been proposed to very high requirement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of electric layer ventilating opening shock-absorbing and noise-eliminating device simply effective, economical and practical, easy for installation.
Technical scheme of the present invention is as follows:
A kind of electric layer ventilating opening shock-absorbing and noise-eliminating device, it comprises the shutter that is positioned at electric layer ventilating duct air port place, the blade of described shutter is skewed, and the window frame of described blade and shutter fixed installation, described shutter inner side is provided with noise elimination vent window, described noise elimination vent window is fixedly installed in ventilating duct, and described noise elimination vent window is made up of frame and the column noise elimination fence being arranged in frame region, and described frame and column noise elimination fence are made by the ultramicropore acoustic board of plating zinc on surface.
Described frame and column noise elimination fence are made by the ultramicropore acoustic board of at least 2 layers of plating zinc on surface.
Described zinc-plated ultramicropore acoustic board thickness is more than or equal to 0.5mm.
Described column noise elimination fence at least accounts for 50% of region inner area that frame surrounds.
Between described frame and air channel, be filled with damping bed course.
Described damping bed course comprises the flexible foam filler that between under-filled rubber damper between frame and air channel and frame and air channel, its excess-three face is filled.
The thickness of described rubber damper is 4 ~ 6mm, and the thickness of described flexible foam filler is 4 ~ 6mm.
Between the ultramicropore acoustic board of described 2 layers and above plating zinc on surface, be filled with puigging and/or NACF, described puigging is centrifugally glass-wool.
In described frame and/or column noise elimination fence, be filled with Sound-proof material and/or sound-absorbing net.
The invention has the beneficial effects as follows: except the blade of shutter is skewed guarantee ventilates, by the blade of shutter and its window frame are fixed, can effectively avoid the blade generation noise that trembles with the wind, sound deadening capacity at least reaches 5dB; Noise elimination vent window is set in air channel, noise elimination vent window is made up of frame and column noise elimination fence simultaneously, and this design can strengthen air permeability, frame and column noise elimination fence are made up of the ultramicropore acoustic board of plating zinc on surface, and soundproof effect is good, environmental protection portable, there is no secondary pollution, cost is low, is easy to promote; Frame and column noise elimination fence can be hollow-core construction, adopt the ultramicropore acoustic board of at least 2 layers of plating zinc on surface greatly to improve soundproof effect, also be conducive to vented exhaust with ultramicropore, between the ultramicropore acoustic board of 2 layers and above described plating zinc on surface, be filled with puigging and/or NACF contributes to noise reduction and/or absorption pernicious gas; Column noise elimination fence at least accounts for frame inner region area 50% can ensure better sound insulation; Between frame and air channel, be filled with rubber damper and flexible foam filler, reduce the vibration noise that its vibration transmission is produced that the vibration of shutter back wall is installed.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present invention.
Wherein, 1 shutter, 2 frames, 3 column noise elimination fence, 4 rubber dampers, 5 flexible foam fillers.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, be described in detail below in conjunction with accompanying drawing 1 and specific embodiment.
The present embodiment, comprise the shutter 1 that is positioned at electric layer ventilating duct air port place, the blade of described shutter 1 is skewed, and the window frame of described blade and shutter 1 fixed installation, described shutter 1 inner side is provided with noise elimination vent window, described noise elimination vent window is fixedly installed in ventilating duct, and described noise elimination vent window is made up of frame 2 and the column noise elimination fence 3 being arranged in frame 2 regions, and described frame 2 and column noise elimination fence 3 are made by the ultramicropore acoustic board of plating zinc on surface.
Described frame 2 and column noise elimination fence 3 are made by the ultramicropore acoustic board of at least 2 layers of plating zinc on surface, between the ultramicropore acoustic board of 2 layers and above described plating zinc on surface, are filled with puigging and/or NACF, to guarantee sound insulation the ventilation in the situation that.
Described zinc-plated ultramicropore acoustic board thickness is more than or equal to 0.5mm.
Described column noise elimination fence 3 at least accounts for 50% of region inner area that frame 2 surrounds.
Between described frame 2 and air channel, be filled with damping bed course, the not vibration with the wind of vent window that ensures to eliminate the noise during air-out, reduces frame 2 and air channel due to the vibration noise producing that collides with.
Described damping bed course comprises the flexible foam filler 5 that between under-filled rubber damper 4 between frame 2 and air channel and frame 2 and air channel, its excess-three face is filled, according to the different unlike materials that adopt of vibration trend, the rubber damper 4 that vibration intensity large employing hardness in bottom is larger, its excess-three face adopts the better flexible foam filler 5 of elasticity, piecemeal is filled simultaneously, is convenient to change and install.
The thickness of described rubber damper 4 is 4 ~ 6mm, and the thickness of described flexible foam filler 5 is 4 ~ 6mm.
Between the ultramicropore acoustic board of described 2 layers and above plating zinc on surface, be filled with puigging and/or NACF, described puigging is centrifugally glass-wool, and not only sound insulation can also be adsorbed pernicious gas.
In described frame 2 and/or column noise elimination fence 3, be filled with Sound-proof material and/or sound-absorbing net, take into account sound insulation and sound-absorbing effect.
In the present embodiment, the length of shutter 1 is 1075mm, wide is 575mm, thickness is 100mm, in noise elimination vent window between column noise elimination fence 3, be spaced apart 65 ~ 70mm, the upper of frame 2 in noise elimination vent window is 30mm along width, under it, be 70mm along width, the ultramicropore acoustic board thickness of plating zinc on surface is 1.2mm, adopts the zinc-plated ultramicropore acoustic board of double layer surface.
The above embodiment is only the preferred embodiments of the present invention, and is not the exhaustive of the feasible enforcement of the present invention.For persons skilled in the art, any apparent change of under the prerequisite that does not deviate from the principle of the invention and spirit, it having been done, within all should being contemplated as falling with claim protection domain of the present invention.
Claims (9)
1. an electric layer ventilating opening shock-absorbing and noise-eliminating device, it comprises the shutter (1) that is positioned at electric layer ventilating duct air port place, it is characterized in that: the blade of described shutter (1) is skewed, and the window frame of described blade and shutter (1) fixed installation, described shutter (1) inner side is provided with noise elimination vent window, described noise elimination vent window is fixedly installed in ventilating duct, described noise elimination vent window is made up of frame (2) and the column noise elimination fence (3) that is arranged in frame (2) region, described frame (2) and column noise elimination fence (3) are made by the ultramicropore acoustic board of plating zinc on surface.
2. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 1, is characterized in that: described frame (2) and column noise elimination fence (3) are made by the ultramicropore acoustic board of at least 2 layers of plating zinc on surface.
3. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 1 and 2, is characterized in that: described zinc-plated ultramicropore acoustic board thickness is more than or equal to 0.5mm.
4. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 1 and 2, is characterized in that: described column noise elimination fence (3) at least accounts for 50% of region inner area that frame (2) surrounds.
5. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 1 and 2, is characterized in that: between described frame (2) and air channel, be filled with damping bed course.
6. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 5, is characterized in that: described damping bed course comprises the flexible foam filler (5) that between under-filled rubber damper (4) between frame (2) and air channel and frame (2) and air channel, its excess-three face is filled.
7. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 6, is characterized in that: the thickness of described rubber damper (4) is 4 ~ 6mm, and the thickness of described flexible foam filler (5) is 4 ~ 6mm.
8. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 2, is characterized in that: between the ultramicropore acoustic board of described 2 layers and above plating zinc on surface, be filled with puigging and/or NACF.
9. electric layer ventilating opening shock-absorbing and noise-eliminating device according to claim 1, is characterized in that: in described frame (2) and/or column noise elimination fence (3), be filled with Sound-proof material and/or sound-absorbing net.
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CN201410306092.6A CN104110813A (en) | 2014-07-01 | 2014-07-01 | Shock-absorption and noise-eliminating device at electricity generating layer ventilation opening |
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CN201410306092.6A CN104110813A (en) | 2014-07-01 | 2014-07-01 | Shock-absorption and noise-eliminating device at electricity generating layer ventilation opening |
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CN104110813A true CN104110813A (en) | 2014-10-22 |
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CN201410306092.6A Pending CN104110813A (en) | 2014-07-01 | 2014-07-01 | Shock-absorption and noise-eliminating device at electricity generating layer ventilation opening |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105202738A (en) * | 2015-10-19 | 2015-12-30 | 上海市环境科学研究院 | Building ventilation silencing device |
US10026390B2 (en) * | 2015-06-30 | 2018-07-17 | Nanjing Changrong Acoustic Inc. | Sound absorption plate with unit structure |
CN109383734A (en) * | 2018-11-06 | 2019-02-26 | 无锡德林防务装备股份有限公司 | Return air grid with sound insulation function |
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CN2876612Y (en) * | 2006-01-11 | 2007-03-07 | 北京绿创声学工程股份有限公司 | Silencer for ventilation system of Heating ventilating and air conditioning |
CN201562523U (en) * | 2009-12-16 | 2010-08-25 | 长沙威胜能源产业技术有限公司 | Reactor protecting shell |
CN201730657U (en) * | 2010-02-12 | 2011-02-02 | 张荣初 | Environment-friendly purification muffler |
CN201738759U (en) * | 2010-03-23 | 2011-02-09 | 北京静安天成噪声控制技术责任有限公司 | Beam-cavity resonance sound attenuation window |
GB2477502A (en) * | 2010-02-03 | 2011-08-10 | William David Prince | Passive ventilation device having a three in one filter |
CN203068727U (en) * | 2012-12-05 | 2013-07-17 | 周进坤 | Air-exhausting and noise-eliminating channel |
CN204006567U (en) * | 2014-07-01 | 2014-12-10 | 国家电网公司 | A kind of electric layer ventilating opening shock-absorbing and noise-eliminating device |
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2014
- 2014-07-01 CN CN201410306092.6A patent/CN104110813A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2876612Y (en) * | 2006-01-11 | 2007-03-07 | 北京绿创声学工程股份有限公司 | Silencer for ventilation system of Heating ventilating and air conditioning |
CN201562523U (en) * | 2009-12-16 | 2010-08-25 | 长沙威胜能源产业技术有限公司 | Reactor protecting shell |
GB2477502A (en) * | 2010-02-03 | 2011-08-10 | William David Prince | Passive ventilation device having a three in one filter |
CN201730657U (en) * | 2010-02-12 | 2011-02-02 | 张荣初 | Environment-friendly purification muffler |
CN201738759U (en) * | 2010-03-23 | 2011-02-09 | 北京静安天成噪声控制技术责任有限公司 | Beam-cavity resonance sound attenuation window |
CN203068727U (en) * | 2012-12-05 | 2013-07-17 | 周进坤 | Air-exhausting and noise-eliminating channel |
CN204006567U (en) * | 2014-07-01 | 2014-12-10 | 国家电网公司 | A kind of electric layer ventilating opening shock-absorbing and noise-eliminating device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10026390B2 (en) * | 2015-06-30 | 2018-07-17 | Nanjing Changrong Acoustic Inc. | Sound absorption plate with unit structure |
CN105202738A (en) * | 2015-10-19 | 2015-12-30 | 上海市环境科学研究院 | Building ventilation silencing device |
CN109383734A (en) * | 2018-11-06 | 2019-02-26 | 无锡德林防务装备股份有限公司 | Return air grid with sound insulation function |
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