JPS6479502A - Level controller for drain tank of feedwater heater - Google Patents

Level controller for drain tank of feedwater heater

Info

Publication number
JPS6479502A
JPS6479502A JP23459387A JP23459387A JPS6479502A JP S6479502 A JPS6479502 A JP S6479502A JP 23459387 A JP23459387 A JP 23459387A JP 23459387 A JP23459387 A JP 23459387A JP S6479502 A JPS6479502 A JP S6479502A
Authority
JP
Japan
Prior art keywords
water level
level adjusting
adjusting valve
normal water
drain flow
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
JP23459387A
Other languages
Japanese (ja)
Inventor
Hiroshi Tsuji
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP23459387A priority Critical patent/JPS6479502A/en
Publication of JPS6479502A publication Critical patent/JPS6479502A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Non-Electrical Variables (AREA)

Abstract

PURPOSE: To suppress fluctuation of the water level of a high-pressure drain tank, by adding a signal, where a deviation signal between the drain flow command signal of each other water level adjusting valve and its real drain flow command signal is added to the drain flow command signal outputted to each water level adjusting valve, as a control signal to the water level adjusting valve. CONSTITUTION: In case that abnormality occurs in either of normal water level adjusting valves 12a and 12b, for example, in the normal water level adjusting valve 12a and it operates in close direction, a normal water level adjusting valve drain flow signal e1 deceases, the deviation signal f1 of the drain flow of the ordinary water level adjusting valve increases. Accordingly, the drain flow command signal of the normal water level adjusting valve 12b increases by that amount, and that water level adjusting valve 12 is actuated in open direction. That is, the normal water level adjusting valve 12b on normality side works to compensate the operation of the normal water level adjusting valve 12a on abnormality side. Conversely, in case that the normal water level adjusting valve 12a on abnormality side operates in open side, the normal water level adjusting valve 12b on abnormality side operates for compensation in close direction.
JP23459387A 1987-09-18 1987-09-18 Level controller for drain tank of feedwater heater Pending JPS6479502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23459387A JPS6479502A (en) 1987-09-18 1987-09-18 Level controller for drain tank of feedwater heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23459387A JPS6479502A (en) 1987-09-18 1987-09-18 Level controller for drain tank of feedwater heater

Publications (1)

Publication Number Publication Date
JPS6479502A true JPS6479502A (en) 1989-03-24

Family

ID=16973458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23459387A Pending JPS6479502A (en) 1987-09-18 1987-09-18 Level controller for drain tank of feedwater heater

Country Status (1)

Country Link
JP (1) JPS6479502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA009439B1 (en) * 2005-01-19 2007-12-28 Арузе Корп. Gaming machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA009439B1 (en) * 2005-01-19 2007-12-28 Арузе Корп. Gaming machine

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