JPS552921A - Method and device to detect damage in radiator pipe - Google Patents

Method and device to detect damage in radiator pipe

Info

Publication number
JPS552921A
JPS552921A JP7549378A JP7549378A JPS552921A JP S552921 A JPS552921 A JP S552921A JP 7549378 A JP7549378 A JP 7549378A JP 7549378 A JP7549378 A JP 7549378A JP S552921 A JPS552921 A JP S552921A
Authority
JP
Japan
Prior art keywords
radiator pipe
valve
pressure
bomb
balloon
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
JP7549378A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamazaki
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP7549378A priority Critical patent/JPS552921A/en
Publication of JPS552921A publication Critical patent/JPS552921A/en
Pending legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: To detect the presence or absence of cracks, by inserting a balloon which can shrink or distend on the exaust side of a radiator pipe, applying, and let alone, pressure in the radiator pipe by closing air and fuel valves and after a while measuring the rate of pressure drop.
CONSTITUTION: Fuel valve 6 and air valve 4 of radiator pipe 1, which is to be tested, are closed. Cover 8 of exhaust gas duct 7 is opened, and balloon 9 is inserted in the exhaust side of radiator pipe 1. Three-direction cock 19 is switched to the side of bomb 17. Next, valve 21 is opened, and the compressed inert gas in bomb 17 is injected into balloon 9. Then, valve 20 is opened and the inert gas in bomb 16 is injected into radiator pipe 1 via pipes 12 and 10. This pressure is read by pressure gauge 14 and read valve 20 is closed. Then, the situation is left in this way. After a while, the relation between the reading of pressure gauge 14 and the time is checked. This is plotted for P1 and P2 in a graph. When there is not crack in radiator pipe 1, the rate of pressure drop is small as shown by P1. But when there is a crack or cracks, the pressure drops sharply as shown by P2.
COPYRIGHT: (C)1980,JPO&Japio
JP7549378A 1978-06-23 1978-06-23 Method and device to detect damage in radiator pipe Pending JPS552921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7549378A JPS552921A (en) 1978-06-23 1978-06-23 Method and device to detect damage in radiator pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7549378A JPS552921A (en) 1978-06-23 1978-06-23 Method and device to detect damage in radiator pipe

Publications (1)

Publication Number Publication Date
JPS552921A true JPS552921A (en) 1980-01-10

Family

ID=13577848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7549378A Pending JPS552921A (en) 1978-06-23 1978-06-23 Method and device to detect damage in radiator pipe

Country Status (1)

Country Link
JP (1) JPS552921A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175935A (en) * 1981-04-23 1982-10-29 Tlv Co Ltd Air leakage measurement and its device
JPS6157831U (en) * 1984-09-21 1986-04-18
JPS6375564U (en) * 1986-11-05 1988-05-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175935A (en) * 1981-04-23 1982-10-29 Tlv Co Ltd Air leakage measurement and its device
JPS6157831U (en) * 1984-09-21 1986-04-18
JPS6375564U (en) * 1986-11-05 1988-05-19

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