JPS55142993A - Volume control for centrifugal compressor - Google Patents

Volume control for centrifugal compressor

Info

Publication number
JPS55142993A
JPS55142993A JP4960479A JP4960479A JPS55142993A JP S55142993 A JPS55142993 A JP S55142993A JP 4960479 A JP4960479 A JP 4960479A JP 4960479 A JP4960479 A JP 4960479A JP S55142993 A JPS55142993 A JP S55142993A
Authority
JP
Japan
Prior art keywords
regulating valve
power
flow rate
suction
compressor
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
JP4960479A
Other languages
Japanese (ja)
Inventor
Takeshi Iyoki
Takumi Mizokawa
Takaharu Goto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP4960479A priority Critical patent/JPS55142993A/en
Publication of JPS55142993A publication Critical patent/JPS55142993A/en
Pending legal-status Critical Current

Links

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  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

PURPOSE: To reduce power for a centrifugal compressor to a great extent by regulating the capacity of the centrifugal compressor by means of the operation of a bypass regulating valve above a bypass pipe from a suction regulating valve and a discharge side to a suction side or a discharge regulating valve on the discharge side.
CONSTITUTION: In cases where the flow rate passing through the compressor body is greater than the flow rate F1 determined by the minimum opening degree of a suction regulating valve, as in the case of the conventional control, or than the flow rate F2 determined by the minimum opening degree of the suction regulating valve 5, as in the case of the control under this invention, it is within the controllable range of the suction regulating valve 5 and therefore coincides with the amount of delivery. In cases where the flow rate is smaller than F1 or F2, however, it is within the controllable range of the bypass regulating valve 4 and becomes constant regardless of the amount of delivery. When replacing the amount passing through the compressor with a power from a relation between the amount passing through the compressor and the power, the power in the control under this invention can be lowered down to the broken line shown in the diagram, as compared with the full line, also as shown in the same diagram, in the case of the conventional control method. Thus, the power can be reduced to a great extent.
COPYRIGHT: (C)1980,JPO&Japio
JP4960479A 1979-04-20 1979-04-20 Volume control for centrifugal compressor Pending JPS55142993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4960479A JPS55142993A (en) 1979-04-20 1979-04-20 Volume control for centrifugal compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4960479A JPS55142993A (en) 1979-04-20 1979-04-20 Volume control for centrifugal compressor

Publications (1)

Publication Number Publication Date
JPS55142993A true JPS55142993A (en) 1980-11-07

Family

ID=12835830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4960479A Pending JPS55142993A (en) 1979-04-20 1979-04-20 Volume control for centrifugal compressor

Country Status (1)

Country Link
JP (1) JPS55142993A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183896A (en) * 1982-04-21 1983-10-27 Toshiba Corp Surge control device for compressor
JPH02123299A (en) * 1988-10-31 1990-05-10 Ishikawajima Harima Heavy Ind Co Ltd Controller for centrifugal compressor
WO2005021976A1 (en) * 2003-08-28 2005-03-10 Mitsubishi Heavy Industries, Ltd. Control device for compressor
EP1659294A2 (en) * 2004-11-17 2006-05-24 Mitsubishi Heavy Industries, Ltd. Compressor control unit and gas turbine power plant including this unit
WO2011074421A1 (en) * 2009-12-18 2011-06-23 三菱重工業株式会社 Device and method for controlling compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143010A (en) * 1977-05-20 1978-12-13 Hitachi Ltd Automatic operation control device for turbo compressor
JPS53143009A (en) * 1977-05-20 1978-12-13 Hitachi Ltd Automatic operation control device for turbo compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143010A (en) * 1977-05-20 1978-12-13 Hitachi Ltd Automatic operation control device for turbo compressor
JPS53143009A (en) * 1977-05-20 1978-12-13 Hitachi Ltd Automatic operation control device for turbo compressor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183896A (en) * 1982-04-21 1983-10-27 Toshiba Corp Surge control device for compressor
JPH02123299A (en) * 1988-10-31 1990-05-10 Ishikawajima Harima Heavy Ind Co Ltd Controller for centrifugal compressor
WO2005021976A1 (en) * 2003-08-28 2005-03-10 Mitsubishi Heavy Industries, Ltd. Control device for compressor
EP1662147A1 (en) * 2003-08-28 2006-05-31 Mitsubishi Heavy Industries, Ltd. Control device for compressor
US7556473B2 (en) 2003-08-28 2009-07-07 Mitsubishi Heavy Industries, Ltd. Control unit for compressor
EP1662147A4 (en) * 2003-08-28 2011-08-24 Mitsubishi Heavy Ind Ltd Control unit for compressor
EP1659294A2 (en) * 2004-11-17 2006-05-24 Mitsubishi Heavy Industries, Ltd. Compressor control unit and gas turbine power plant including this unit
EP1659294A3 (en) * 2004-11-17 2012-10-31 Mitsubishi Heavy Industries Compressor Corporation Compressor control unit and gas turbine power plant including this unit
WO2011074421A1 (en) * 2009-12-18 2011-06-23 三菱重工業株式会社 Device and method for controlling compressor
JP2011127519A (en) * 2009-12-18 2011-06-30 Mitsubishi Heavy Ind Ltd Control device and control method of compressor

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