Method and system for gas initiated natural circulation vertical heat recovery steam generator
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United States of America Patent
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May 29, 2018
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N/A
app pub date -
Apr 22, 2015
filing date -
Apr 22, 2015
priority date (Note) -
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Abstract
The present disclosure is directed to a method and a system employing a gas introduced into the system as a startup operation for a natural circulation vertical heat recovery steam generator (HRSG) to initiate natural circulation of a fluid within the system. More specifically, the present disclosure is directed to a method and a system employing a gas introduced into an outlet header of an evaporator, into an outlet header of an evaporator and into one or more risers near the outlet header of the evaporator, or into one or more risers near the outlet header of the evaporator, to initiate natural circulation of a fluid in a desired system direction from the evaporator directly into a steam drum.
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