JPS54104005A - Serging preventive device of centrifugal compressor etc. - Google Patents

Serging preventive device of centrifugal compressor etc.

Info

Publication number
JPS54104005A
JPS54104005A JP1044978A JP1044978A JPS54104005A JP S54104005 A JPS54104005 A JP S54104005A JP 1044978 A JP1044978 A JP 1044978A JP 1044978 A JP1044978 A JP 1044978A JP S54104005 A JPS54104005 A JP S54104005A
Authority
JP
Japan
Prior art keywords
centrifugal compressor
suction
constitution
regulator
line
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
JP1044978A
Other languages
Japanese (ja)
Inventor
Toshio Kikuchi
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 JP1044978A priority Critical patent/JPS54104005A/en
Publication of JPS54104005A publication Critical patent/JPS54104005A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To prevent serging effectively by such a constitution as changing signals, automatically and by steps, produced on the line having a pressure regulator in accordance with change in the suction temperature of a centrifugal compressor, etc.
CONSTITUTION: A suction valve 4 is provided on the suction line 1 of a centrifugal compressor, etc., to be controlled with the output from the selector 5, which selects No. l air signal line 2a for constant wind-pressure control and No.2 air signal line 2b having a pressure regulator 6a to make the setting of the throttle's critical opening of the suction valve 4. In a device with such a constitution, at least one thermal switch 8 is equipped on the suction line 1 as well as another pressure regulator 6b with different setting value from the regulator 6a is provided parallelly to the regulator 6a and further electromagnetic valves 7a, 7b which are controlled so as to open and be shut when it is over and under the actuating temperature of the abovementioned thermal switch 8, respectively, are provided on the output sides of respective regulators.
COPYRIGHT: (C)1979,JPO&Japio
JP1044978A 1978-02-03 1978-02-03 Serging preventive device of centrifugal compressor etc. Pending JPS54104005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1044978A JPS54104005A (en) 1978-02-03 1978-02-03 Serging preventive device of centrifugal compressor etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1044978A JPS54104005A (en) 1978-02-03 1978-02-03 Serging preventive device of centrifugal compressor etc.

Publications (1)

Publication Number Publication Date
JPS54104005A true JPS54104005A (en) 1979-08-15

Family

ID=11750445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1044978A Pending JPS54104005A (en) 1978-02-03 1978-02-03 Serging preventive device of centrifugal compressor etc.

Country Status (1)

Country Link
JP (1) JPS54104005A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160098A (en) * 1983-03-04 1984-09-10 Mitsubishi Heavy Ind Ltd Control of stator blade variable type hydraulic rotary machine
US4594051A (en) * 1984-05-14 1986-06-10 Dresser Industries, Inc. System, apparatus, and method for detecting and controlling surge in a turbo compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160098A (en) * 1983-03-04 1984-09-10 Mitsubishi Heavy Ind Ltd Control of stator blade variable type hydraulic rotary machine
US4594051A (en) * 1984-05-14 1986-06-10 Dresser Industries, Inc. System, apparatus, and method for detecting and controlling surge in a turbo compressor

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