info@noorstar.pk
0092-333-9972495
24/7 Customer Support
0092-333-9972495
Contact us for Enquiry
info@noorstar.pk
24/7 Customer Support
Contact us for Enquiry
Attemperation is the primary technique used for controlling the degree of superheat in a boiler or a Heat Recovery Steam generator (HRSG). This is achieved through a controlled injection of water into the superheated steam. Attemperators are typically installed between superheater stages in order to regulate the output temperature of the boiler/HRSG, as well as protect any secondary superheater pipes from damage owing to excessive heat. The temperature controller for this attemperator (called inter-stage) bases its temperature regulation on input from a temperature transmitter placed on the boiler/HRSG output. A secondary attemperator (called final stage) is often placed after the inter stage temperature transmitter in order to prevent thermal damages to the steam turbine during start-up. The final stage attemperator ensures that the steam temperature upstream the turbine does not rise too fast.
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