JPS5214476A - Abnormality detecting method of chemical plant, etc. - Google Patents

Abnormality detecting method of chemical plant, etc.

Info

Publication number
JPS5214476A
JPS5214476A JP50090079A JP9007975A JPS5214476A JP S5214476 A JPS5214476 A JP S5214476A JP 50090079 A JP50090079 A JP 50090079A JP 9007975 A JP9007975 A JP 9007975A JP S5214476 A JPS5214476 A JP S5214476A
Authority
JP
Japan
Prior art keywords
detecting method
abnormality detecting
chemical plant
interrupt
detect
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
JP50090079A
Other languages
Japanese (ja)
Inventor
Shigeo Shiono
Ko Suzuki
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 JP50090079A priority Critical patent/JPS5214476A/en
Publication of JPS5214476A publication Critical patent/JPS5214476A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To detect an abnormality occurred part such as a crack applying packing or the like to a certain trouble detecting section to interrupt elastic vibrations.
COPYRIGHT: (C)1977,JPO&Japio
JP50090079A 1975-07-25 1975-07-25 Abnormality detecting method of chemical plant, etc. Pending JPS5214476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50090079A JPS5214476A (en) 1975-07-25 1975-07-25 Abnormality detecting method of chemical plant, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50090079A JPS5214476A (en) 1975-07-25 1975-07-25 Abnormality detecting method of chemical plant, etc.

Publications (1)

Publication Number Publication Date
JPS5214476A true JPS5214476A (en) 1977-02-03

Family

ID=13988504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50090079A Pending JPS5214476A (en) 1975-07-25 1975-07-25 Abnormality detecting method of chemical plant, etc.

Country Status (1)

Country Link
JP (1) JPS5214476A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615929A (en) * 1979-07-13 1981-02-16 Mitsubishi Electric Corp Method and device for restoring electrode in electospark machining device
US4448062A (en) * 1981-10-22 1984-05-15 Conoco Inc. Method and apparatus for erosion detection and location in hydrocarbon production systems and the like
US5083462A (en) * 1988-08-11 1992-01-28 Skf Industrial Trading & Development Co. Process and device for detecting defects in moving parts having a central rotating shaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615929A (en) * 1979-07-13 1981-02-16 Mitsubishi Electric Corp Method and device for restoring electrode in electospark machining device
US4448062A (en) * 1981-10-22 1984-05-15 Conoco Inc. Method and apparatus for erosion detection and location in hydrocarbon production systems and the like
US5083462A (en) * 1988-08-11 1992-01-28 Skf Industrial Trading & Development Co. Process and device for detecting defects in moving parts having a central rotating shaft

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