Power distribution room noise control technology and power distribution room noise reduction scheme, Shenzhen Quilter noise reduction Engineering Ltd. specializes in noise reduction, a governance targets
Radiation distribution room to the outside of equivalent sound matching "Industrial Enterprises noise control design" type region 6 GBJ87-1985 noise limits, i.e. between the circadian ≤60dB (A); equivalent sound level outside the room between It meets the noise limit of Class 1 area in "Acoustic Environmental Quality Standard" GB3096-2008, that is, ≤55dB(A) between daytime and ≤45dB(A) at night. Combined with the actual working conditions, the low-frequency noise mainly for the power distribution room has the characteristics of strong diffraction and long propagation distance .
Second, noise control measures
2.1 Distribution room sound insulation
(1) absorbing the acoustic treatment, in the distribution room paved wall mounting type absorber, but also can directly reduce the impact of noise in the engine room outside the room environment, this design can not only minimize the energy density of the acoustic room [Reducing 60% or more] , the noise value in the room can be directly reduced by 3 to 5 dB(A) or more. In particular, the design of the shaped sound absorber makes the sound absorber function optimal by increasing the sound absorption coefficient and the sound absorption area and the repeated action on the noise.
( 2 ) The door connecting the passages is a sound insulation door with a 50 mm thick sound absorbing layer and a 50 mm thick microperforated hollow layer.
(3) The room cooling fan is installed, the need to install the muffler.
( 4 ) Install sound insulation window or air ventilating louver in the equipment room , and install stainless steel mesh outside the louver to prevent foreign matter from inhaling.
2.2 Sound barriers block the transmission of low frequency noise
Because the low frequency noise of the power distribution room is strong, the propagation distance is long and the distance attenuation is low. When the soundproofing measures can not achieve noise reduction objectives, a logical location to install noise barriers between the sound source and the sound receiving point. In this way, the noise problem can be completely solved and the noise reduction target can be achieved.
2.3 equipment shock absorption
Because the power distribution equipment will produce structural sound transmission, and it is more low frequency. Therefore, if necessary, it is necessary to install a rubber shock absorber, a spring shock absorber and other shock absorbing devices to do the vibration isolation treatment. This can improve the noise management effect.
Noise control design scheme distribution room noise needs survey site, according to the actual conditions and requirements, such as: installation location, the type of the sound source, the noise level and frequency of environmental / environmental requirements, ventilation requirements, noise reduction goals To carry out targeted technical design.
Shenzhen Quilter noise reduction Engineering Co., Ltd. is specialized in the distribution room noise control and power distribution room noise reduction, product development, design, acoustic solutions and is committed to construction machinery and equipment as one of the engineering and technology companies, professional noise and vibration comprehensive management and research, to address the noise of machinery and equipment for different types of machinery and equipment and the engine room noise control, to provide users with on-site noise surveys, analysis, provide mechanical equipment noise system solutions and construction services.
Main business:
Industry: noise control of mechanical equipment, noise reduction, noise reduction , noise reduction of medical equipment, noise reduction, noise reduction of workshops, sound insulation and noise reduction, noise reduction of fan room, noise reduction of air compressor room , equipment production line noise reduction and other production equipment noise and environmental noise control in the plant area, sound insulation, shock absorption, noise reduction and other comprehensive noise control projects. All kinds of sound insulation doors, sound insulation windows, sound insulation rooms, sound insulation covers, sound insulation screens and other sound insulation projects.
Civil use: Noise reduction in residential quarters and residential houses , noise control in pump house, noise control in air conditioning systems, noise control in generator rooms, noise control in power distribution rooms, noise control in transformer rooms, noise control between machinery and equipment , hotel, office and office space Sound denoising , conference centers, concert halls, stadiums, theaters and other functional buildings.
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