Description
Attemperation is used for controlling the degree of superheat in a Heat Recovery Steam Generator (HRSG) or a boiler. Water is injected into the steam pipe using a series of spring loaded atomizing nozzles. Attemperators are installed between the superheater stages in order to protect any secondary superheater pipes from damage owing to excessive heat, called “inter-stage”. Another attemperator is often placed after the boiler / HRSG to regulate the output temperature of the boiler / HRSG or to ensure that the temperature upstream the turbine does not rise too quickly. The BVT-DLB has a welded flow profiling liner for superior evaporation and performance.
Key features
- Very high reliability due to being able to handle thermal cycling
- Flow profiling liner as standard
- Designed to handle large spray water flow
- Nozzles resistant to flashing
- Water atomization pressure is maintained at each nozzle at any flow condition
- Even distribution of spray water in the steam pipe
- Negligable pressure drop in the steam line
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