JPS5445410A - Exhaust internal pressure abnormal rise protecting apparatus in gas turbine - Google Patents

Exhaust internal pressure abnormal rise protecting apparatus in gas turbine

Info

Publication number
JPS5445410A
JPS5445410A JP11057077A JP11057077A JPS5445410A JP S5445410 A JPS5445410 A JP S5445410A JP 11057077 A JP11057077 A JP 11057077A JP 11057077 A JP11057077 A JP 11057077A JP S5445410 A JPS5445410 A JP S5445410A
Authority
JP
Japan
Prior art keywords
internal pressure
duct
gas turbine
relief damper
pressure
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
JP11057077A
Other languages
Japanese (ja)
Inventor
Takeyoshi Sakamoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11057077A priority Critical patent/JPS5445410A/en
Publication of JPS5445410A publication Critical patent/JPS5445410A/en
Pending legal-status Critical Current

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  • Control Of Turbines (AREA)

Abstract

PURPOSE: To prevent a big accident due to erroneous operation of dampers in such a way that at the same time as a pressure detector is installed for detecting the internal pressure in an exhaust duct, a relief damper is provided.
CONSTITUTION: In concurrence of installing a relief damper 23 and a differential pressure switch 22 between an exhaust duct 7 and a bypass stack 9 with separately installing a pressure switch 21, pressure is detected in the exhaust duct 7, an interlock is assembled such as to stop fuel control signal 20 by duct internal pressure abnormal signal 29 and a gas turbine by duct internal pressure height alarm 27. By said constitution, though abnormality of dampers 8, 10 actuates so as to stop the turbine, the turbine continues to make rotation, the internal pressure rises in the duct 7, the differential pressure switch 22 gives signal 30 running through an arithmetic operator 16 and relief damper opening signal 26 actuates an actuator 24, which opens a relief damper 23, to discharge gas turbine exhaust out to the atmosphere. This prevents the system from an accident
COPYRIGHT: (C)1979,JPO&Japio
JP11057077A 1977-09-16 1977-09-16 Exhaust internal pressure abnormal rise protecting apparatus in gas turbine Pending JPS5445410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11057077A JPS5445410A (en) 1977-09-16 1977-09-16 Exhaust internal pressure abnormal rise protecting apparatus in gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11057077A JPS5445410A (en) 1977-09-16 1977-09-16 Exhaust internal pressure abnormal rise protecting apparatus in gas turbine

Publications (1)

Publication Number Publication Date
JPS5445410A true JPS5445410A (en) 1979-04-10

Family

ID=14539172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11057077A Pending JPS5445410A (en) 1977-09-16 1977-09-16 Exhaust internal pressure abnormal rise protecting apparatus in gas turbine

Country Status (1)

Country Link
JP (1) JPS5445410A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350628A (en) * 1986-08-21 1988-03-03 Takuma Co Ltd Controlling method for generated steam quantity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350628A (en) * 1986-08-21 1988-03-03 Takuma Co Ltd Controlling method for generated steam quantity

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