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Vent Silencers are used to bring down the exceptionally high noises which are created at the industrial sites when gases such as steam, natural gas, air, nitrogen, oxygen etc are blown off from high pressure to atmospheric pressure. A vent silencer which is also known as a blow off silencer is a piece of equipment used to lessen unnecessary noise produced by gas or steam current in a pipeline discharging in a straight line into the environment. This sound can be generated due to the high speed flow all the way through the valve and turbulence created in the order of any obstacle in the line that all of a sudden controls or changes the direction of flow such as valve or an orifice. Each vent silencer is planned to soothe the noise intensity to the required sound pressure level criterion at a given remoteness from the silencer. This is the basis that vent and blow down silencers are hardly ever a catalogue selection. The particulars given here can be considered as a guideline. In any steam or gas venting or any blow off system, the primary discharge of noise vigor occurs at the open stack outlet. The blow off silencer is installed either within the heap or at the stack outlet to interrupt this noise before it breaks away from into the atmosphere. Functions Vent Silencers are used in industrial processing, oil processing, gas processing, chemical processing, steam boilers and heat recovery systems. The primary requirement for a vent silencer is its capacity to handle with full consistency the rapid discharge of large amounts of steam from elevated pressure to atmosphere and eliminating high levels of noise produced at the vent for steam at extensive range of pressure and temperature conditions. Applications Industrial Vent Silencers are available in a wide range from the leading manufacturers worldwide. These products are applied in chemical processing, oil processing, gas processing, steam boilers, heat recovery systems and other industrial processing where noise is generated. General Features The silencers are made from concentric annular auditory cylinders together with strong steel covering with flat end or dipped end at one end. These may be found in long filament glass wool packing with prime layered external finish. These are available in side inlet and inline outlet or inline inlet and outlet. These are used in combination with systems that operate a pressure relief regulator. The structural plan of a typical Vent Silencer is given the same detailed attention as its acoustic devise. The exterior case is made of flawless pipe in smaller sizes and constantly welded rolled plate in bigger diameter silencers. Mounted vertically or horizontally, cradle or pad type supports are offered for trouble-free installation. These may be obtained as packed or unpacked diffuser types according to their duty necessities. How it works As the liquid goes into the diffuser, it passes through the annular space between the auditory packing due to which the sound energy is absorbed. The flow passage goes straight through the annular auditory cylinders which assures minimum pressure fall. A weather cover for shelter from rain is offered as a voluntary item. Thomas Smith is the author of this article on Engine Silencers. Thomas Smith is the author of this article on Combination Silencers.
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