JPS59107996U - pump control device - Google Patents

pump control device

Info

Publication number
JPS59107996U
JPS59107996U JP166283U JP166283U JPS59107996U JP S59107996 U JPS59107996 U JP S59107996U JP 166283 U JP166283 U JP 166283U JP 166283 U JP166283 U JP 166283U JP S59107996 U JPS59107996 U JP S59107996U
Authority
JP
Japan
Prior art keywords
control device
pump control
pump
cavitation
suppresses
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
JP166283U
Other languages
Japanese (ja)
Inventor
正幸 菊池
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 JP166283U priority Critical patent/JPS59107996U/en
Publication of JPS59107996U publication Critical patent/JPS59107996U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control By Computers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はポンプ性能曲線及び流量と必要ＮＦＳＨの関係
線図、第２図は制御装置の概略図、第３図は本制御装置
の演算処理ロジック図である。 １・・・給水ポンプ、２・・・給水調節弁、３・・・切
替え器、４・・・アナログメモリ、５・・・加算器。FIG. 1 is a pump performance curve and a relationship diagram between flow rate and required NFSH, FIG. 2 is a schematic diagram of the control device, and FIG. 3 is a calculation processing logic diagram of the control device. 1... Water supply pump, 2... Water supply control valve, 3... Switching device, 4... Analog memory, 5... Adder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ポンプＮＰＳＨをポンプ吸込流体の状態量を検出して計
！する事により、キャビテーションの発生を抑制、防止
する事を特徴とした、ポンプ制御装置。Measure the pump NPSH by detecting the state quantity of the pump suction fluid! A pump control device that suppresses and prevents the occurrence of cavitation.
JP166283U 1983-01-12 1983-01-12 pump control device Pending JPS59107996U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP166283U JPS59107996U (en) 1983-01-12 1983-01-12 pump control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP166283U JPS59107996U (en) 1983-01-12 1983-01-12 pump control device

Publications (1)

Publication Number Publication Date
JPS59107996U true JPS59107996U (en) 1984-07-20

Family

ID=30133373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP166283U Pending JPS59107996U (en) 1983-01-12 1983-01-12 pump control device

Country Status (1)

Country Link
JP (1) JPS59107996U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103496A (en) * 1985-10-30 1987-05-13 Toshiba Corp Condensate booster pump rotation speed control device
WO2005080798A1 (en) * 2004-02-23 2005-09-01 Mitsubishi Heavy Industries, Ltd. Water supply pump system
JP2010121890A (en) * 2008-11-20 2010-06-03 Hitachi Ltd Tank water level control system
JP2013108446A (en) * 2011-11-22 2013-06-06 Kawasaki Heavy Ind Ltd Pump control method and control device therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103496A (en) * 1985-10-30 1987-05-13 Toshiba Corp Condensate booster pump rotation speed control device
WO2005080798A1 (en) * 2004-02-23 2005-09-01 Mitsubishi Heavy Industries, Ltd. Water supply pump system
JP2010121890A (en) * 2008-11-20 2010-06-03 Hitachi Ltd Tank water level control system
JP2013108446A (en) * 2011-11-22 2013-06-06 Kawasaki Heavy Ind Ltd Pump control method and control device therefor

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