JPS56167888A - Controller for water feed pump - Google Patents

Controller for water feed pump

Info

Publication number
JPS56167888A
JPS56167888A JP6962480A JP6962480A JPS56167888A JP S56167888 A JPS56167888 A JP S56167888A JP 6962480 A JP6962480 A JP 6962480A JP 6962480 A JP6962480 A JP 6962480A JP S56167888 A JPS56167888 A JP S56167888A
Authority
JP
Japan
Prior art keywords
water feed
feed rate
pump
behind
pressure difference
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
JP6962480A
Other languages
Japanese (ja)
Inventor
Hideo Hatakeyama
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
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6962480A priority Critical patent/JPS56167888A/en
Publication of JPS56167888A publication Critical patent/JPS56167888A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To minimize a power loss by a method wherein when a water feed rate command exceeds a pump limit, the pump speed is controlled to be higher than required for ensuring a predetermined pressure difference between the before and behind of a regulator valve.
CONSTITUTION: When the value of a water feed rate command signal 8 exceeds that of a pump limit signal 9, the valve of a signal 11 representing the pressure difference between the before and behind of the regulator valve is added with the value of the water feed rate command signal 8, thereby obtaining a pump speed control signal 12. By this pump speed control signal 12, the pump speed is controlled to be higher than required for ensuring the pressure difference between the before and behind of the regulator valve at the predetermined level, so that excessive flow of water by the pump can be prevented and the water feed rate corresponding to the water feed rate command can be ensured. In this construction, since there is no need to maintain the pressure difference between the before and behind of the regulator valve constantly for preparation of an abrupt increase of the water feed rate, the power loss can be much decreased.
COPYRIGHT: (C)1981,JPO&Japio
JP6962480A 1980-05-27 1980-05-27 Controller for water feed pump Pending JPS56167888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6962480A JPS56167888A (en) 1980-05-27 1980-05-27 Controller for water feed pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6962480A JPS56167888A (en) 1980-05-27 1980-05-27 Controller for water feed pump

Publications (1)

Publication Number Publication Date
JPS56167888A true JPS56167888A (en) 1981-12-23

Family

ID=13408201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6962480A Pending JPS56167888A (en) 1980-05-27 1980-05-27 Controller for water feed pump

Country Status (1)

Country Link
JP (1) JPS56167888A (en)

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