What is the function of Attemperator in boiler?
An attemperator is a part of the 4-stage superheater in the boiler system of the thermal power plant. The attemperator receives the over-heated steam and makes the steam with proper temperature by adjusting the control valve of the cold steam.
How does an Attemperator work?
Principle of Operation Fig. 6952 and Fig. 6953 Attemperator Desuperheaters reduce steam temperature by bringing superheated steam into direct contact with water. The steam is cooled through the evaporation of the water.
What is an Attemperator valve?
Attemperator Desuperheaters reduce the steam temperature by combining the superheated steam with water. The steam is cooled through the evaporation of the water. The flow control of water is critical to ensure the correct temperature and pressure are achieved.
What is a superheater in boiler?
Superheaters and reheaters are specially designed to increase the temperature of the saturated steam and to help control the steam outlet temperature. They are simple single-phase heat exchangers with steam flowing inside and the flue gas passing outside, generally in the cross flow.
What is the function of desuperheater in a boiler?
Most desuperheater applications reduce the temperature of steam generated by high pressure/high temperature boilers to levels required in process operations. The primary function of a desuperheater is to lower the temperature of superheated steam or other vapors.
What is difference between economizer and superheater?
Since the super heater steam has a lot of energy the super heater is used for reduce the temperature of the steam, the economizer helps in minimizing the conservation of energy and re-heater is used for increasing the thermal efficiency of the boilers.
What is FD fan in boiler?
A forced-draft (FD) fan is a type of pressurized fan that gives off positive pressure within a system. It is mainly used in industries that employ boiler systems in order to promote boiler efficiency, but it has a wide range of applications.
What is PRS pressure?
Pressure reducing stations (PRS) is the arrangement of certain valves which is used to provide the desired steam pressure at user’s end.
What is the function of superheater and economizer in boiler?