Himech Acoustics Engineering Tiruchirappalli, Tamil Nadu

The suction silencer is used to reduce the suction noise of the compressor/ blower. It is constructed in circular shape. The fluid passes through the annular space of the acoustic packing where the sound energy is absorbed. The straight flow path through annular acoustic cylinder ensures minimum pressure drop The following data are required to design suction silencer. Flow rate Temperature Inlet size Allowable pressure drop Silenced noise level requirements

Every industry makes use of safety valves to protect systems against over pressure when these safety valves are opened to vent steam, gas or vapor it is often accompanied by excessive noise levels. Noise level as high as 150 to 160dB (A) are not audible/unacceptable. It will affect the hearing level of employees and complaints may also be received from surrounding residential areas or factories. Himech Acoustics safety valve silencer will reduce such noise to environmentally acceptable levels. [Such as 85dB (A)] as specified by Indian pollution control boards. The following process values are required to make the appropriate selection. Medium Capacity Medium temperature Pressure before the valve and after the valve Sound level required Connection size

The fan silencer is used to reduce the suction and discharge noise of the fan. It is an absorptive type silencer and is very effective for high frequency noise attenuation. Consequently fan silencers shall be supplied in rectangular shape.The internal of fan silencer is constructed with series of rectangular baffle with aerodynamic design to offer minimum pressure drop. The following data are required to design fan silencer. Application Flow rate Temperature Fan inlet / outlet size (Depending on application) Allowable pressure drop Silenced noise level requirements

The exhaust silencer is used to reduce the exhaust noise of the engine and turbine. The engine silencer is a combination of absorptive and reactive type silencer to attenuate high and low frequency noise. The gas turbine exhaust silencer will be absorptive type silencer. The exhaust silencer will be similar to that of vent silencer. It is generally offered in circular shape. For the design of the exhaust silencer the following information are needed Type of Fluid (Gas (or) Steam) Mass flow (Preferable in pounds per hour or kg per hour) Temperature and pressure upstream of the control or relief valve Line connection to the vent silencer Silenced noise level requirements

We are offering Industrial enclosure can reduce reverberation and reflected noise in industrial environments. Our design will take into consideration of verification’s, access openings, doors and vision panels. We provide simple and cost effective solutions which are suitable for a variety of industrial applications. Enclosures use the modular system. The modular acoustic panels can be dismantled and re-assembled to another location without affecting the acoustic performance. Typical Acoustic Enclosure: Compressor enclosures Diesel and gas generator enclosures Acoustic enclosures for fans / blowers Acoustic enclosures for boiler feed pump

  The discharge silencer is used to reduce the discharge noise of the compressor / blower when discharging fluid into process. It is constructed in circular shape. The fluid passes through the annular acoustic packing where the sound energy is absorbed. The straight flow path through annular acoustic cylinder ensures minimum pressure drop. The following data are required to design discharge silencer. Flow rate Temperature Inlet size Allowable pressure drop Silenced noise level requirements  

Blow off silencer is a type of vent silencer. The blow down of highly compressed vapor or gas into the open air sets kinetic energy free in the form of high amplitude pressure fluctuations. The result is an extremely high sound pressure level which must be reduced. Such emission can be very effectively be limited with blow-off silencers. For the design of the silencer the following information is needed Type of fluid (Gas or Steam) Temperature and Pressure upstream (before) valve Permissible sound pressure level at Emission point (in defined distance) E.g.85 dB(A) in 1m distance Diameter of inlet nozzle