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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||122/406ST ; 60/39182 ; 60/646 ; 122/448B|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 4|
A coupling controller opens a dump valve at the outlet of a heat recovery steam generator when such generator is to be coupled to another generator being in operation with a steam turbine on a common header. The controller gradually permits pressure build-up until the pressure at the outlet of the new generator matches the pressure behind the header. The controller also responds to critical conditions in the superheater as well as in the high pressure drum of the generator in the operation.
Apparatus for starting a steam boiler and for coupling a steam output thereof through a throttle valve and a header to a steam feed line at an operative pressure and temperature comprising: means for draining through a bypass line steam from said steam output before said throttle valve with said throttle valve being closed initially; with said draining means including a controlled drain valve and control means controlling said drain valve in a first mode for admitting a derivation flow at predetermined minimal constant flow level in said bypass line as t...