JPS6475803A - Method of operating gas turbing exhaust after burning boiler - Google Patents

Method of operating gas turbing exhaust after burning boiler

Info

Publication number
JPS6475803A
JPS6475803A JP23094087A JP23094087A JPS6475803A JP S6475803 A JPS6475803 A JP S6475803A JP 23094087 A JP23094087 A JP 23094087A JP 23094087 A JP23094087 A JP 23094087A JP S6475803 A JPS6475803 A JP S6475803A
Authority
JP
Japan
Prior art keywords
combustion
exhaust
draft fan
forced draft
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23094087A
Other languages
Japanese (ja)
Inventor
Sadao Minagawa
Teru Nagano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP23094087A priority Critical patent/JPS6475803A/en
Publication of JPS6475803A publication Critical patent/JPS6475803A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable atmospheric air to be supplied by a method wherein a shutoff pressure of a forced draft fan is selected higher than a draft on the boiler side during the re-combustion of exhaust gas and following the starting of the forced draft fan immediately after the stoppage of a gas turbine, an outlet damper is opened immediately to minimize air for combustion while eliminating the back flow thereof in the gas turbine on the side of the forced draft fan. CONSTITUTION: For example, in the selection of a forced draft fan, a boiler draft is 400 mmAq and a shutoff pressure 500 mmAq during the re-combustion of an exhaust. Once the forced draft fan is started, there is no reversion of an exhaust gas in a gas turbine even when an outlet damper is opened. In the combustion in the atmospheric air, the boiler draft comes down to 280 mmAq from the re-combustion of the exhaust as the amount and temperature of air supplied to a boiler lower to secure air in the atmospheric combustion. After checking to see that about 10 sec. is given to the completion of the starting of the forced draft fan and a timer 11 is set to 12 sec.
JP23094087A 1987-09-17 1987-09-17 Method of operating gas turbing exhaust after burning boiler Pending JPS6475803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23094087A JPS6475803A (en) 1987-09-17 1987-09-17 Method of operating gas turbing exhaust after burning boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23094087A JPS6475803A (en) 1987-09-17 1987-09-17 Method of operating gas turbing exhaust after burning boiler

Publications (1)

Publication Number Publication Date
JPS6475803A true JPS6475803A (en) 1989-03-22

Family

ID=16915688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23094087A Pending JPS6475803A (en) 1987-09-17 1987-09-17 Method of operating gas turbing exhaust after burning boiler

Country Status (1)

Country Link
JP (1) JPS6475803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007232262A (en) * 2006-02-28 2007-09-13 Hitachi Ltd Cogeneration plant and its operating method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007232262A (en) * 2006-02-28 2007-09-13 Hitachi Ltd Cogeneration plant and its operating method

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