Zhenghang fan silencer, silencer
The fan is a general mechanical equipment with a wide range of uses. The production of various industries such as electric power, mining, machinery, metallurgy, and chemical industry is inseparable from the fan. The noise generated by fans during operation often affects the health of workers and disturbs the environment. In particular, the aerodynamic noise radiated by the air inlets and outlets of fans adjacent to living areas is a major factor in environmental pollution and a public nuisance. It is one of the main targets of noise pollution control in my country's industrial sector in recent years.
Industrial fans are continuously operating equipment. The noise standard stipulated by the International Organization for Standardization for this type of equipment is decibels. my country’s new standard is the same. This is also the basis for industrial enterprises to continuously meet the noise standards. However, without adopting noise reduction measures, the air inlet and outlet of the fan will be exposed to the environment. The noise emitted can reach ~ decibels, which greatly exceeds the compliance requirements.
This series of fan mufflers is of impedance acoustic flow type. Our factory determines how much sound attenuation is needed in which spectrum range based on the near-characteristic data obtained from actual testing of on-site noise sources of various types of wind turbines in power plants as the main basis for designing the sound-absorbing sheet structure and fluid channels. At the same time, it uses Narrow rectangular channels faced with larger sound-absorbing material to enhance absorption. We know that when the noise source of a fan reaches its maximum noise level, it often has more than one spectrum value, and different spectrum bands have different requirements for their noise reduction. To this end, the fan muffler adopts a resistive structure that muffles high- and medium-frequency noise and an anti-static structure that muffles medium- and low-frequency noise. At the same time, two types of high-frequency and low-frequency mufflers are used in the resistive channel. The sound zone is used to widen the silencing frequency band to the maximum extent to achieve good silencing effect.
When the user installs this product as required, its ultimate noise level will not exceed ~ decibels.
The fan muffler introduced in this description
is suitable for all types of centrifugal and axial flow fans. In addition, our factory also designs and produces gas turbines, Roots blowers, air compressors and diesel engine exhausts, etc. Mufflers for similar purposes, users are welcome to inquire and purchase.
Fan silencer
Mainly suitable for reducing the intake and exhaust noise of Roots series and axial flow series fans. It can also be used to reduce the noise of exhaust pipes and other high-pressure fans, with less noise reduction and less pressure loss. At.
Zhenghang fan silencer