JPS55109706A - Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected - Google Patents

Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected

Info

Publication number
JPS55109706A
JPS55109706A JP1606179A JP1606179A JPS55109706A JP S55109706 A JPS55109706 A JP S55109706A JP 1606179 A JP1606179 A JP 1606179A JP 1606179 A JP1606179 A JP 1606179A JP S55109706 A JPS55109706 A JP S55109706A
Authority
JP
Japan
Prior art keywords
deaerator
load
condensate
pressure
valve
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.)
Granted
Application number
JP1606179A
Other languages
Japanese (ja)
Other versions
JPS6134042B2 (en
Inventor
Masayoshi Mitsufuji
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 JP1606179A priority Critical patent/JPS55109706A/en
Publication of JPS55109706A publication Critical patent/JPS55109706A/en
Publication of JPS6134042B2 publication Critical patent/JPS6134042B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent decreasing in the effective net pressure head of a feed water pump, by interrupting supply of condensate to an deaerator after disconnection of load through provision of a condensate shut-off valve, and lowering the saturation pressure of fluid at the inlet of feed water pump through provision of a deaerator by-pass line.
CONSTITUTION: At the time when the load is disconnected, pressure drop in deaerator 1 is prevented by fully closing condensate shut-off valve 9 and thereby interrupting supply of condensate to deaerator 1. Subsequently, when on-off valve 11 is opened gradually and cold water is mixed into the inlet fluid of feed water pump 5, saturation pressure of the inlet fluid is lowered so that decreasing in the effective net pressure head can be prevented. Therefore, installation height of deaeartor 1 can be reduced as compared with that of the conventional arrangements.
COPYRIGHT: (C)1980,JPO&Japio
JP1606179A 1979-02-16 1979-02-16 Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected Granted JPS55109706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1606179A JPS55109706A (en) 1979-02-16 1979-02-16 Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1606179A JPS55109706A (en) 1979-02-16 1979-02-16 Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected

Publications (2)

Publication Number Publication Date
JPS55109706A true JPS55109706A (en) 1980-08-23
JPS6134042B2 JPS6134042B2 (en) 1986-08-05

Family

ID=11906051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1606179A Granted JPS55109706A (en) 1979-02-16 1979-02-16 Apparatus for preventing decreasing of pressure in deaerator at the time when load is disconnected

Country Status (1)

Country Link
JP (1) JPS55109706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189205A (en) * 1983-04-11 1984-10-26 株式会社日立製作所 Method and device for controlling flow rate of feedwater
JPH03206305A (en) * 1989-05-15 1991-09-09 Westinghouse Electric Corp <We> Composite cycle power plant and operating method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189205A (en) * 1983-04-11 1984-10-26 株式会社日立製作所 Method and device for controlling flow rate of feedwater
JPH03206305A (en) * 1989-05-15 1991-09-09 Westinghouse Electric Corp <We> Composite cycle power plant and operating method thereof

Also Published As

Publication number Publication date
JPS6134042B2 (en) 1986-08-05

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