KR870009229A - 초음파를 이용한 보일러관의 비파괴 검사방법 - Google Patents
초음파를 이용한 보일러관의 비파괴 검사방법 Download PDFInfo
- Publication number
- KR870009229A KR870009229A KR870002695A KR870002695A KR870009229A KR 870009229 A KR870009229 A KR 870009229A KR 870002695 A KR870002695 A KR 870002695A KR 870002695 A KR870002695 A KR 870002695A KR 870009229 A KR870009229 A KR 870009229A
- Authority
- KR
- South Korea
- Prior art keywords
- time
- ultrasonic
- scale
- thickness
- boiler tube
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
- G01B17/025—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness for measuring thickness of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02881—Temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 측정장치의 블록다이어그램
제2도는 결함이 생긴 보일러관에서 반사된 초음파펄스의 파형도
제3도는 산화물스케일의 실재두께와 스케일내에서의 초음파신호 진행시간과의 연관관계를 나타낸 그래프이다.
* 도면의 주요 부분에 대한 부호의 설명
Claims (4)
- 보일러 내부에서 유체를 통과시키는 보일러관의 내벽에 고착된 산화물스케일의 두께를 초음파탐상방식으로 측정함에 있어서, 스케일 내부에서 통과흔 초음파펄스의 진행시간에 따라 산화물스케일의 두께를 비교결정하는데 척도가 되는 기준표를 산출하는 과정과 보일러관내로 초음파 펄스를 전송시키기 위해 초음파빔의 중심선이 보일러간의 내벽에 수직되도록 초음파변환기를 보일러관의 외표면에 지향되게 설치하는 과정, 보일러관내에 최소한 50㎒ 이상의 주파수를 갖는 초음파 펄스를 전송시키기 위해 변환기에 고주파전압을 걸어주는 과정, 초음파펄스가 관과 스케일간의 경계면까지 정송되었다가 반사되어 되돌아올때까지의 진행시간(TOF1)을 측정하는 과정, 제2진행시간(TOF2)과 제1진행시간(TOF1)사이의 시차를 결정해서 이 시차를 스케일의 두께를 각각 결정하는데 척도가 되는 기준표와 비교하는 과정으로 이루어지면서, 상기 기준표는 스케일의 두께가 각각다른 다수개의 샘플용 보일러관에서 일차적으로 초음파펄스의 진행시간을 측정한 다음 물리적 또는 야금방식에 의해 실제의 스케일 두께를 측정하여 펄스진행시간과 스케일 두께와의 상관관계를 나타낸 것으로 된 것을 특징으로 하는 초음파를 이용한 보일러관의 비파괴검사방법.
- 제1항에 있어서, 파지부착방식의 변환기는 보일러관의 외표면에 인위적으로 부착하도록 된 것을 특징으로 하는 초음파를 이용한 보일러관의 비파괴검사방법.
- 제1항에 있어서, 기준표는 스케일두께와 제2진행시간(TOF2) 및 제1진행시간(TOF1) 사이의 시차에 관련된 공식에 의하여 산출하도록 된 것을 특징으로 하는 초음파를 이용한 보일러관의 비파괴검사방법.
- 제1항에 있어서, 기준표는 스케일의 두께와 제2진행시간(TOF2) 및 제1진행시간(TOF1)사이의 시차에 관련된 연관곡선에 의하여 산출하도록 된 것을 특징으로 하는 초음파를 이용한 보일러판의 비파괴검사방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/844,399 US4669310A (en) | 1986-03-26 | 1986-03-26 | High frequency ultrasonic technique for measuring oxide scale on the inner surface of boiler tubes |
US06/844399 | 1986-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870009229A true KR870009229A (ko) | 1987-10-24 |
KR960013685B1 KR960013685B1 (ko) | 1996-10-10 |
Family
ID=25292626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870002695A KR960013685B1 (ko) | 1986-03-26 | 1987-03-24 | 초음파를 이용한 보일러관의 비파괴 검사방법 |
Country Status (10)
Country | Link |
---|---|
US (1) | US4669310A (ko) |
EP (1) | EP0239275B1 (ko) |
JP (1) | JPS62284209A (ko) |
KR (1) | KR960013685B1 (ko) |
BR (1) | BR8701985A (ko) |
CA (1) | CA1267213A (ko) |
DE (1) | DE3781296T2 (ko) |
ES (1) | ES2033828T3 (ko) |
IL (1) | IL81794A0 (ko) |
MX (1) | MX165126B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100497501B1 (ko) * | 2002-11-29 | 2005-07-01 | (주)오리엔트전산 | 초음파를 이용한 자동차 엔진용 피스톤 갤러리의 결함탐지방법 및 이에 사용되는 결함탐지 장치 |
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FR2629586B1 (fr) * | 1988-03-30 | 1992-01-03 | Cezus Co Europ Zirconium | Procede de controle ultrasonore de l'epaisseur de placage d'un tube metallique, dispositif correspondant et application a des tubes en alliage de zr plaque |
US4872345A (en) * | 1988-03-30 | 1989-10-10 | Shell Oil Company | Measuring wall erosion |
JPH0365608A (ja) * | 1989-08-02 | 1991-03-20 | Ishikawajima Harima Heavy Ind Co Ltd | 配管内のスケール厚さ計測方法及び装置 |
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US5349860A (en) * | 1989-11-28 | 1994-09-27 | Nkk Corporation | Apparatus for measuring the thickness of clad material |
JPH0758179B2 (ja) * | 1989-11-28 | 1995-06-21 | 株式会社帝通電子研究所 | クラッド厚さ測定装置 |
US5050108A (en) * | 1989-11-30 | 1991-09-17 | Aptech Engineering, Inc. | Method for extending the useful life of boiler tubes |
US4991440A (en) * | 1990-02-05 | 1991-02-12 | Westinghouse Electric Corp. | Method of ultrasonically measuring thickness and characteristics of zirconium liner coextruded with zirconium tube |
JPH0442011A (ja) * | 1990-06-06 | 1992-02-12 | Jgc Corp | 超音波を用いた薄層の厚さ測定方法 |
US5092176A (en) * | 1990-06-29 | 1992-03-03 | The Babcock & Wilcox Company | Method for determining deposit buildup |
US5691636A (en) * | 1993-08-25 | 1997-11-25 | Andritz Sprout-Bauer, Inc. | Probe assembly mounting for a grinding machine |
US5723791A (en) | 1993-09-28 | 1998-03-03 | Defelsko Corporation | High resolution ultrasonic coating thickness gauge |
US5661241A (en) * | 1995-09-11 | 1997-08-26 | The Babcock & Wilcox Company | Ultrasonic technique for measuring the thickness of cladding on the inside surface of vessels from the outside diameter surface |
FR2754898B1 (fr) * | 1996-10-18 | 2000-08-18 | Comex Technologies | Procede et dispositif pour la mesure de la quantite d'un depot susceptible de s'etre forme dans une canalisation de transport de fluide |
JPH11108902A (ja) * | 1997-09-30 | 1999-04-23 | Mitsubishi Heavy Ind Ltd | 二探触子による管の探傷方法 |
US5970434A (en) * | 1998-01-29 | 1999-10-19 | Southwest Research Institute | Method for determining average wall thickness for pipes and tubes using guided waves |
US6035717A (en) * | 1998-05-12 | 2000-03-14 | Krautkramer Branson, Inc. | Method and apparatus for measuring the thickness of a coated material |
GB9925373D0 (en) | 1999-10-27 | 1999-12-29 | Schlumberger Ltd | Downhole instrumentation and cleaning system |
DE10115328A1 (de) * | 2001-03-28 | 2002-10-10 | Framatome Anp Gmbh | Verfahren zur Ultraschallmessung von Teilschichtdicken dünnwandiger Rohre |
AU2002331478A1 (en) * | 2001-10-02 | 2003-04-14 | Viasense Consulting, Inc. | A real-time system for detecting foreign bodies in food containers using ultrasound |
KR100966543B1 (ko) | 2002-12-24 | 2010-06-29 | 주식회사 포스코 | 유도 초음파를 이용한 배관 내부 침적층 평가 장치 |
US7337655B2 (en) * | 2003-12-05 | 2008-03-04 | Sage Of America, Inc. | Studded boiler tube wall and method of measuring corrosion thereon |
US7286960B2 (en) * | 2004-09-30 | 2007-10-23 | General Electric Company | Systems and methods for monitoring fouling and slagging in heat transfer devices in coal fired power plants |
US20070005270A1 (en) * | 2005-06-24 | 2007-01-04 | National Central University | Method for examining plate steel on concrete |
US20070006656A1 (en) * | 2005-07-11 | 2007-01-11 | General Electric Company | System and method for monitoring deposition within tubes of a heating system |
CA2695423C (en) * | 2007-08-03 | 2016-01-12 | The Mill Steel Co. | Apparatus for determining gauge profile for flat rolled material |
DE102008027228B4 (de) * | 2008-05-29 | 2018-12-13 | Ge Inspection Technologies Gmbh | Verfahren und Vorrichtung zur zerstörungsfreien Ultraschalluntersuchung eines Prüfstücks mit zueinander gewinkelten, ebenen Oberflächen |
US8982337B2 (en) * | 2009-07-31 | 2015-03-17 | The Mill Steel Co. | Apparatus for determining gauge profile for flat rolled material with laser-based lap counter |
DE102009040999B4 (de) * | 2009-09-10 | 2011-09-15 | Airbus Operations Gmbh | System und ein Verfahren zum Detektieren von Ablagerungen in einer Fluidleitung |
EP2724143A1 (en) | 2011-06-21 | 2014-04-30 | Sheverev, Valery A. | Device and method for monitoring interaction between a fluid and a wall |
CN104011529B (zh) * | 2011-12-22 | 2017-08-01 | 索理思科技开曼公司 | 用于检测沉积物的设备和方法 |
AU2012357003B2 (en) * | 2011-12-22 | 2015-02-05 | Solenis Technologies Cayman, L.P. | Method and device for detecting and analyzing deposits |
JP2014010130A (ja) * | 2012-07-03 | 2014-01-20 | Yutaka Hata | 超音波を用いた線状体の外径測定装置 |
GB2512835A (en) * | 2013-04-08 | 2014-10-15 | Permasense Ltd | Ultrasonic detection of a change in a surface of a wall |
US9927231B2 (en) | 2014-07-25 | 2018-03-27 | Integrated Test & Measurement (ITM), LLC | System and methods for detecting, monitoring, and removing deposits on boiler heat exchanger surfaces using vibrational analysis |
CN104101290A (zh) * | 2014-07-25 | 2014-10-15 | 夏艳光 | 一种锅炉垢物在线检测方法 |
US10060688B2 (en) | 2014-07-25 | 2018-08-28 | Integrated Test & Measurement (ITM) | System and methods for detecting, monitoring, and removing deposits on boiler heat exchanger surfaces using vibrational analysis |
US10018113B2 (en) * | 2015-11-11 | 2018-07-10 | General Electric Company | Ultrasonic cleaning system and method |
GB2545044B (en) * | 2016-08-11 | 2018-02-07 | Guided Ultrasonics Ltd | Determining a thickness of a region of wall-or plate-like structure |
CN106918642B (zh) * | 2017-02-28 | 2020-07-28 | 中国大唐集团科学技术研究院有限公司西北分公司 | 锅炉管内氧化皮沉积量测量设备的测量精准度校正方法 |
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-
1986
- 1986-03-26 US US06/844,399 patent/US4669310A/en not_active Expired - Lifetime
-
1987
- 1987-03-05 IL IL81794A patent/IL81794A0/xx unknown
- 1987-03-06 ES ES198787301981T patent/ES2033828T3/es not_active Expired - Lifetime
- 1987-03-06 DE DE8787301981T patent/DE3781296T2/de not_active Expired - Fee Related
- 1987-03-06 EP EP87301981A patent/EP0239275B1/en not_active Expired - Lifetime
- 1987-03-24 KR KR1019870002695A patent/KR960013685B1/ko not_active IP Right Cessation
- 1987-03-25 JP JP62069284A patent/JPS62284209A/ja active Pending
- 1987-03-25 MX MX5716A patent/MX165126B/es unknown
- 1987-03-25 CA CA000532954A patent/CA1267213A/en not_active Expired - Lifetime
- 1987-03-26 BR BR8701985A patent/BR8701985A/pt unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100497501B1 (ko) * | 2002-11-29 | 2005-07-01 | (주)오리엔트전산 | 초음파를 이용한 자동차 엔진용 피스톤 갤러리의 결함탐지방법 및 이에 사용되는 결함탐지 장치 |
Also Published As
Publication number | Publication date |
---|---|
CA1267213A (en) | 1990-03-27 |
EP0239275B1 (en) | 1992-08-26 |
JPS62284209A (ja) | 1987-12-10 |
EP0239275A2 (en) | 1987-09-30 |
MX165126B (es) | 1992-10-28 |
KR960013685B1 (ko) | 1996-10-10 |
EP0239275A3 (en) | 1988-03-30 |
US4669310A (en) | 1987-06-02 |
ES2033828T3 (es) | 1993-04-01 |
IL81794A0 (en) | 1987-10-20 |
DE3781296D1 (de) | 1992-10-01 |
DE3781296T2 (de) | 1993-02-25 |
BR8701985A (pt) | 1988-01-12 |
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