JPS55101708A - Extraction pressure controlling system for extraction turbine - Google Patents

Extraction pressure controlling system for extraction turbine

Info

Publication number
JPS55101708A
JPS55101708A JP15844878A JP15844878A JPS55101708A JP S55101708 A JPS55101708 A JP S55101708A JP 15844878 A JP15844878 A JP 15844878A JP 15844878 A JP15844878 A JP 15844878A JP S55101708 A JPS55101708 A JP S55101708A
Authority
JP
Japan
Prior art keywords
pressure
extraction
turbine
controlling
range
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
JP15844878A
Other languages
Japanese (ja)
Inventor
Iwao Kawaguchi
Kanemichi Hashiguchi
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 JP15844878A priority Critical patent/JPS55101708A/en
Publication of JPS55101708A publication Critical patent/JPS55101708A/en
Pending legal-status Critical Current

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  • Control Of Turbines (AREA)

Abstract

PURPOSE: To make the bleeding structure of an extraction turbine compact, by controlling the extraction pressure through selection from at least either one of a fixed extraction-pressure controlling range, extraction-pressure increasing variable- pressure operational range or extraction-pressure reducing variable-pressure operational range.
CONSTITUTION: A portion B of steam A, passed through final-stage rotor blades 11 of high-pressure turbine 1, is extracted from bleeding port 8. Here, in case that extraction-pressure controlling valve 4 is fully closed, remaining steam is made to flow directly into extraction-pressure controlling nozzle 12 and then to low-pressure turbine 2. Here, extraction pressure of the turbine is controlled through selection from at least either one of a fixed extraction-pressure controlling range selected to involve the middle section in respect of the quantity of steam introduced into low- pressure turbine, an extraction-pressure increasing variable-pressure operational range selected in the section higher than the upper limit of the said fixed control range, or an extraction-pressure reducing variable-pressure operational range selected in the section lower than the lower limit of the said fixed control range.
COPYRIGHT: (C)1980,JPO&Japio
JP15844878A 1978-12-25 1978-12-25 Extraction pressure controlling system for extraction turbine Pending JPS55101708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15844878A JPS55101708A (en) 1978-12-25 1978-12-25 Extraction pressure controlling system for extraction turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15844878A JPS55101708A (en) 1978-12-25 1978-12-25 Extraction pressure controlling system for extraction turbine

Publications (1)

Publication Number Publication Date
JPS55101708A true JPS55101708A (en) 1980-08-04

Family

ID=15671971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15844878A Pending JPS55101708A (en) 1978-12-25 1978-12-25 Extraction pressure controlling system for extraction turbine

Country Status (1)

Country Link
JP (1) JPS55101708A (en)

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