JPS6475907A - Method for measuring gap between heat transfer pipe and its supporting member - Google Patents

Method for measuring gap between heat transfer pipe and its supporting member

Info

Publication number
JPS6475907A
JPS6475907A JP23240887A JP23240887A JPS6475907A JP S6475907 A JPS6475907 A JP S6475907A JP 23240887 A JP23240887 A JP 23240887A JP 23240887 A JP23240887 A JP 23240887A JP S6475907 A JPS6475907 A JP S6475907A
Authority
JP
Japan
Prior art keywords
heat transfer
transfer pipe
wave
probe
ultrasonic wave
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.)
Granted
Application number
JP23240887A
Other languages
Japanese (ja)
Other versions
JP2511065B2 (en
Inventor
Seiichi Wakayama
Shoji Suyama
Koji Enami
Yoichi Iwahashi
Mitsuyoshi Matsumoto
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP23240887A priority Critical patent/JP2511065B2/en
Publication of JPS6475907A publication Critical patent/JPS6475907A/en
Application granted granted Critical
Publication of JP2511065B2 publication Critical patent/JP2511065B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

PURPOSE:To make it possible to ensure the measurement of a gap even if a heat transfer pipe has a thin wall, by a constitution wherein an ultrasonic wave probe that is inserted into the heat transfer pipe is positioned at a point that is offset from the central axis of the pipe, and an ultrasonic wave is inputted into the inner surface of the heat transfer pipe at an angle at which the ultrasonic wave that is orthogonal to the supporting surface of a supporting member in parallel with the central axis is transmitted. CONSTITUTION:An ultrasonic wave probe 4 is inserted into a heat transfer pipe 7 so that the probe is offset from the central axis of the pipe. When an ultrasonic wave 6 is transmitted from the probe 4, the sound wave 6 is obliquely inputted into the inner surface of the heat transfer pipe 7 owing to the offset position. A reflected wave 6a advances in the different direction from the probe 4. A part 6b of the ultrasonic wave 6 is refracted at the inner surface 7a, propagated through the material of the heat transfer pipe 7 and obliquely inputted into an outer surface 7b. The wave is propagated between the inner and outer surfaces 7a and 7b in a zigzag pattern. The wave is received with the probe 4 and selected. A part 6c of the reflected wave 6b is transmitted through the outer surface 7b, propagated so that the light crosses a supporting surface 8a of a supporting member 8 and undergoes regular reflection at the supporting surface 8a. The wave is propagated along the incident path in the reverse direction and received in the probe 4 as the reflected wave from the member 8.
JP23240887A 1987-09-18 1987-09-18 Method for measuring gap between heat transfer tube and its supporting member Expired - Lifetime JP2511065B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23240887A JP2511065B2 (en) 1987-09-18 1987-09-18 Method for measuring gap between heat transfer tube and its supporting member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23240887A JP2511065B2 (en) 1987-09-18 1987-09-18 Method for measuring gap between heat transfer tube and its supporting member

Publications (2)

Publication Number Publication Date
JPS6475907A true JPS6475907A (en) 1989-03-22
JP2511065B2 JP2511065B2 (en) 1996-06-26

Family

ID=16938778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23240887A Expired - Lifetime JP2511065B2 (en) 1987-09-18 1987-09-18 Method for measuring gap between heat transfer tube and its supporting member

Country Status (1)

Country Link
JP (1) JP2511065B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021930A (en) * 2010-07-16 2012-02-02 Chubu Electric Power Co Inc Thickness measuring method
JP2014048183A (en) * 2012-08-31 2014-03-17 Mitsubishi Heavy Ind Ltd Gap measuring device, method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021930A (en) * 2010-07-16 2012-02-02 Chubu Electric Power Co Inc Thickness measuring method
JP2014048183A (en) * 2012-08-31 2014-03-17 Mitsubishi Heavy Ind Ltd Gap measuring device, method, and program

Also Published As

Publication number Publication date
JP2511065B2 (en) 1996-06-26

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