MAPNA Boiler Engineering and Manufacturing Company, a subsidiary of the engineering and energy giant MAPNA Group, has designed and manufactured vent silencers for thermal power plants.
Experts and engineers at the company have succeeded in making various types of silencers for use in steam units, heat recovery boilers class-E and Class-F as well as industrial boilers, ILNA reported.
The venting of high pressure steam to atmosphere during plant operations often leads to unacceptably high noise levels. This noise can be generated due to the high velocity flow through the valve and turbulence created around any obstacle in the line that suddenly restricts or changes the direction of flow such as valve or an orifice.
Vent silencers reduce the noise generated by the expansion of gas or steam from elevated pressures to atmospheric pressure. These absorptive silencers are used to suppress noise generated by high velocity gas streams such as steam vents, safety relief valve outlets, system blowdown and purge outlets.
Each vent silencer is designed to attenuate the noise level to the required sound pressure level criteria at a given distance from the silencer.
The vent silencers manufactured by MAPNA comply with international standards and are to be installed at several thermal power plants across Iran.
MAPNA Group is a conglomerate of Iranian companies involved in the development and execution of thermal and renewable power, oil and gas, railroads and other industrial projects as well as manufacturing equipment.
MAPNA Boiler and Equipment Engineering and Manufacturing Company is specialized in design, supply, manufacturing, installation and commissioning of different types of heat recovery steam generators, water tube boilers as well as other related equipment and accessories in the fields of power, oil and gas, and petrochemical plants in domestic and foreign markets.
