KR930017268A - Remote Vortex and Ultrasonic Inspection System of Turbine Generator Support Ring - Google Patents

Remote Vortex and Ultrasonic Inspection System of Turbine Generator Support Ring Download PDF

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KR930017268A
KR930017268A KR1019920012744A KR920012744A KR930017268A KR 930017268 A KR930017268 A KR 930017268A KR 1019920012744 A KR1019920012744 A KR 1019920012744A KR 920012744 A KR920012744 A KR 920012744A KR 930017268 A KR930017268 A KR 930017268A
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carriage
bracket
cylindrical object
longitudinal axis
cylindrical
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플랭클린 데일리 죠오지
크라포드 무어 칼스
피셔 마크윌리엄
알렌 바우워 제임스
와렌 알포드 제임스
에드워드 놀. 2세 존
조셉 메탈라 미첼
스티븐 우첼 그레이
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디. 씨. 에이블스
웨스팅하우스 일렉트릭 코오포레이숀
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Publication of KR930017268A publication Critical patent/KR930017268A/en

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    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/902—Arrangements for scanning by moving the sensors
    • 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
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/223—Supports, positioning or alignment in fixed situation
    • 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
    • G01N2291/02827—Elastic parameters, strength or force
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Electrochemistry (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

본 발명은 터빈 발전기 지지링의 원격와류 및 초음과 검사장치에 관한 것이다. 발전기 지지링과 같은 커다란 실린더를 검사하는 컴퓨텀 제어용 주사기 장치는 지지링 장치를 수행하는데 필요로 하는 테스트센서에 와류 및 초음파를 동시에 송출하는 저틈새 주사기의 특징이 있다. 상기 주사기는 컴퓨터에 기본을 둔 유닛에 의해 제어되고 지지링위의 센서를 정확히 위치시키는 위치 인코더를 갖는다. 한번의 통과로 검사를 실행하였는데 상기 주사기는 축위길이를 따라 선행적으로 움직일 수 있을 뿐만 아니라 상기 지지링의 전체 원주주위를 회전할 수 있다. 소정데이타 획득 및 표시기능은 센서에서 얻어진 정보에 의해 자동화된 데이타 수집 및 주사표시를 허용한다. 지지링이 발전기 고정자내에 위치할 때 지지링은 검사될 수 있는데, 따라서 많은 시간과 높력을 적약할 수 있고, 또는 회전자와 제거된다.The present invention relates to a remote vortex and ultrasonic inspection device of the turbine generator support ring. Computing control syringe devices for inspecting large cylinders, such as generator support rings, feature a narrow-gap syringe that simultaneously delivers vortex and ultrasound to the test sensor required to perform the support ring device. The syringe has a position encoder that is controlled by a computer based unit and accurately positions the sensor on the support ring. In one pass the test was carried out where the syringe could not only move proactively along the axial length but also rotate the entire circumference of the support ring. Predetermined data acquisition and display functions allow automated data collection and scanning display by information obtained from the sensor. When the support ring is located in the generator stator, the support ring can be inspected, thus saving a lot of time and power, or being removed from the rotor.

Description

터빈발전기 지지링의 원격와류 및 초음파 검사장치Remote Vortex and Ultrasonic Inspection System of Turbine Generator Support Ring

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 지지링 검사장치의 전체적인 개략도, 제2도는 본 발명의 지지링 주사기 조립체의 사시도, 제3도는 제2도에 도시된 내부 캐리지 조립체의 상세도, 제4도는 제2도에 도시된 와류/초음파 변환기 홀더 조립체의 상세도, 제5도는 본 발명의 초음파 변환기 블록조립체의 상세도.1 is an overall schematic view of the support ring inspection apparatus of the present invention, FIG. 2 is a perspective view of the support ring syringe assembly of the present invention, FIG. 3 is a detailed view of the inner carriage assembly shown in FIG. 2, and FIG. 4 is shown in FIG. Detailed view of the vortex / ultrasonic transducer holder assembly shown, FIG. 5 is a detailed view of the ultrasonic transducer block assembly of the present invention.

Claims (10)

외부직경표면과 내부직경표면을 가지는 발전기 회전자 지지링을 검사하는 장치에 있어서, 상기 외부직경표면, 내부직경표면 및 원통형 물체의 몸체에서 흠집을 동시에 감지하는 센서수단과, 상기 원통형 물체에 상기 센서수단을 운반하고, 원통형 물체의 원주면 상에서 그것의 길이를 따라 축방향으로 위치할 수 있는 주사기 수단과, 상기 원통형 물체상의 상기 주사기 수단의 위치를 판별하는 위치검출수단과; 원격지로부터 검사장치의 동작을 제어하는 수단을 특징으로 하는 검사장치.An apparatus for inspecting a generator rotor support ring having an outer diameter surface and an inner diameter surface, the apparatus comprising: sensor means for simultaneously detecting scratches on the outer diameter surface, the inner diameter surface and the body of a cylindrical object, and the sensor on the cylindrical object Syringe means for carrying the means, the syringe means being axially positioned along its length on the circumferential surface of the cylindrical object, and position detecting means for determining the position of the syringe means on the cylindrical object; Means for controlling the operation of the inspection apparatus from a remote location. 제1항에 있어서, 상기 센서수단은 상기 외부직경 표면에서 흠집을 검출하는 와류탐침과, 상기 내부직경표면 및 상기 원통형 물체의 몸체에서 흠집을 검출하는 초음파 변환기를 포함하는 것을 특징으로 하는 검사장치.The inspection apparatus according to claim 1, wherein the sensor means includes a vortex probe for detecting a scratch on the outer diameter surface, and an ultrasonic transducer for detecting a scratch on the inner diameter surface and the body of the cylindrical object. 제1항 또는 제2항에 있어서, 상기 주사기 수단은 세로축과 상기 원통형 물체의 원주면상에서 원주방향으로 제1캐리지를 회전시키는 수단을 가지는 상기 제1캐리지와, 상기 제1캐리지에 부착되며 제1캐리지의 세로축에 따라 제2캐리지에 이동시키는 수단을 포함하는 상기 제2캐리지를 포함하는 것을 특징으로 하는 검사장치.3. The first carriage as claimed in claim 1 or 2, wherein the syringe means is attached to the first carriage and has a first carriage having means for rotating the first carriage in a circumferential direction on a longitudinal axis and the circumferential surface of the cylindrical object. And said second carriage comprising means for moving to a second carriage along a longitudinal axis of the carriage. 제3항에 있어서, 상기 제1캐리지를 회전시키는 수단은 상기 원통형 물체의 원주면에 고착될 수 있는 구동체인과, 상기 제1캐리지에 결합된 원주형 구동장치를 포함하며, 상기 원주형 구동장치는 상기 제1캐리지에 고착된 제1구동모터를 구비하고, 상기 제1구동모터는 자신에 작동가능하게 부착된 스프로켓을 가지며, 상기 스프로켓은 상기 제1구동모터가 동작될 때 상기 원통형 물체의 원주면상에서 원주방향을 따라 상기 제1캐리지가 회전되도록 상기 구동체인에 맞물려 있는 것을 포함하는 것을 특징으로 하는 검사장치.4. The circumferential drive device according to claim 3, wherein the means for rotating the first carriage includes a drive chain capable of being fixed to the circumferential surface of the cylindrical object, and a circumferential drive device coupled to the first carriage. Has a first drive motor fixed to the first carriage, the first drive motor has a sprocket operably attached to the sprocket, wherein the sprocket is a circle of the cylindrical object when the first drive motor is operated; And an engagement with the drive chain such that the first carriage is rotated in a circumferential direction on a main surface thereof. 제3항에 있어서, 상기 제1캐리지는 자신과 관련이 있으며 자신의 세로축을 따라 배향된 한쌍의 U자형 채널을 포함하며; 상기 제2캐리지를 이동시키는 수단은 상기 U자형 채널과 미끄럼 접촉하는 브래킷과, 상기 제1캐리지의 세로축을 따라 배치된 선형구동체인과, 상기 선형구동체인에 고착된 일부분과 상기 제2캐리지에 고착된 다른 부분을 가지는 체인 클램프와, 상기 제1캐리지의 세로축을 따라 선형구동체인을 구동하고 그것에 의해 제2캐리지가 제1캐리지의 세로축을 따라 이동하도록 하는 수단을 구비하는 것을 특징으로 하는 검사장치.4. The apparatus of claim 3, wherein the first carriage comprises a pair of U-shaped channels associated with it and oriented along its longitudinal axis; The means for moving the second carriage includes a bracket in sliding contact with the U-shaped channel, a linear drive chain disposed along the longitudinal axis of the first carriage, a portion fixed to the linear drive chain, and fixed to the second carriage. And a chain clamp having a different portion, and means for driving the linear drive chain along the longitudinal axis of the first carriage and thereby causing the second carriage to move along the longitudinal axis of the first carriage. 제5항에 있어서, 상기 제2캐리지는 자신위에 상기 센서 수단을 장착되게 하는 수단을 포함하고, 상기 장착수단은; 상기 제1캐리지의 세로축에 수직하는 축에 대해 피봇할 수 있도록 제2캐리지에 연결되고 상기 원통형 물체의 표면에 상기 센서수단이 접촉되는 피봇암 조립체와, 상기 피봇암 조립체에 제거 가능하도록 부착된 제1브래킷과, 상기 제1브래킷에 고착되며, 상기 제1브래킷에 대해 피봇할 수 있을 정도로 자신위에 장착된 상기 센서수단을 상기 원통혈 물체에 대하여 지지 유지되는 것을 특징으로 하는 검사장치.6. The apparatus of claim 5, wherein the second carriage comprises means for mounting the sensor means thereon; A pivot arm assembly connected to the second carriage so as to pivot about an axis perpendicular to the longitudinal axis of the first carriage and having the sensor means in contact with the surface of the cylindrical object, and detachably attached to the pivot arm assembly; And a bracket and the sensor means fixed to the first bracket so as to be pivotable with respect to the first bracket and held against the cylindrical blood object. 제6항에 있어서, 상기 센서수단은 외부직경표면에 있는 흠집을 검출하는 와류 탐침과, 내부직경표면 및 원통형 물체의 몸체에 있는 흠집을 검출하는 초음파 변환기를 구비하는 것을 특징으로 하는 검사장치.7. An inspection apparatus according to claim 6, wherein the sensor means comprises a vortex probe for detecting a scratch on the outer diameter surface, and an ultrasonic transducer for detecting a scratch on the inner diameter surface and the body of the cylindrical object. 제1항 내지 제7항중 어느 한 항에 있어서, 상기 검사장치는; 상기 원통형 물체의 원주면에 고착될 수 있는 구동체인과; 상기 제1캐리지에 결합된 원주형 구동장치에 있어서, 상기 원주형 구동장치는 제1캐리지에 고착된 제1구동모터를 구비하고, 상기 제1구동모터는 자신에 동작가능하도록 부착되고 상기 구동체인에 회전가능하게 맞물려 상기 제1구동모터가 작동될 때, 상기 제1캐리지가 원통형 물체의 원주면상에 원주방향을 따라 회전되도록 하는 스프로켓을 가지며, 상기 제1캐리지의 양쪽에 제공되고 상기 제1캐리지의 세로축을 따라 배향된 한쌍의 U자형 채널과; 상기 제1캐리지의 세로축을 따라 배치된 선형구동체인과; 상기 선형구동체인에 고착된 일부분과 상기 제2캐리지에 고착된 다른 부분을 가지는 체인 클램프와; 상기 제1캐리지의 세로축을 따라 선형구동체인을 구동하도록 상기 제2캐리지가 상기 제1캐리지의 세로축을 따라 이동되게 하는 제2구동모터를 더 구비하며, 상기 제2캐리지는 상기 U자형 채널에 미끄럼 접촉되는 상기 브래킷을 가지며, 상기 원통형 물체에 상기 주사기수단의 위치를 판별하는 상기 위치검출수단은 상기 원주형 구동장치에 동작가능하게 결합된 원주형 위치 귀환변환기와 상기 선형구동모터와 동작가능하게 관련된 선형 위치 귀환 변환기를 구비하며, 원주형 및 선형 위치 귀환 변환기에서 인가되는 신호를 상기 주사기 수단의 상기 제1및 제2캐리지의 위치를 판별하는 제어수단에 제공하는 것을 특징으로 하는 검출장치.The test apparatus according to any one of claims 1 to 7, wherein the inspection apparatus; A drive chain which can be fixed to the circumferential surface of the cylindrical object; The cylindrical drive device coupled to the first carriage, wherein the cylindrical drive device includes a first drive motor fixed to the first carriage, and the first drive motor is operably attached to the first drive motor. Has a sprocket for rotatably engaging the first drive motor so that the first carriage rotates in the circumferential direction on the circumferential surface of the cylindrical object, provided on both sides of the first carriage and A pair of U-shaped channels oriented along the longitudinal axis of; A linear drive chain disposed along the longitudinal axis of the first carriage; A chain clamp having a portion fixed to the linear drive chain and another portion fixed to the second carriage; And a second drive motor for moving the second carriage along the longitudinal axis of the first carriage to drive the linear drive chain along the longitudinal axis of the first carriage, wherein the second carriage is slid in the U-shaped channel. The position detecting means having the bracket in contact and determining the position of the syringe means on the cylindrical object is operably associated with the linear drive motor and a cylindrical position feedback transducer operatively coupled to the cylindrical drive. And a linear position feedback transducer, and providing a signal applied by the cylindrical and linear position feedback transducers to the control means for discriminating the positions of the first and second carriages of the syringe means. 제8항에 있어서, 상기 센서홀더는 제1브래킷에 제거 가능하게 부착되고 상기 제1캐리지의 세로축에 대해 수직축상에 있는 상기 제1브래킷에 대해 피봇할 수 있는 U브래킷과, 상기 와류탐침을 지지하며 압축스프링에 의해 상기 U브래킷에 부착되는 제1장착블록과, 상기 U브래킷에 고착되고 상기 U브래킷에 대해 수직으로 피봇할수 있으며 상기 초음파 변환기를 지지하는 제2장착 블록을 포함하는 것을 특징으로 하는 검사장치.The U bracket according to claim 8, wherein the sensor holder is removably attached to the first bracket and pivots about the first bracket on the vertical axis of the first carriage and the vortex probe. And a first mounting block attached to the U bracket by a compression spring, and a second mounting block fixed to the U bracket and pivotable relative to the U bracket and supporting the ultrasonic transducer. Inspection device. 제9항에 있어서, 상기 검사장치는 상기 초음파 변환기를 사용하여 원통형 물체에 접촉매질을 운반하는 수단을 더 구비하는데, 상기 수단은 상기 제2장착블럭이 접촉매질 공급원으로부터 접촉매질을 운반하는 제2수단을 포함하는 것을 특징으로 하는 검사장치.10. The apparatus of claim 9, wherein the inspection apparatus further comprises means for conveying the contact medium to the cylindrical object using the ultrasonic transducer, wherein the second mounting block carries a second contact medium from the contact medium source. An inspection apparatus comprising a means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920012744A 1992-01-28 1992-07-16 Remote Vortex and Ultrasonic Inspection System of Turbine Generator Support Ring KR930017268A (en)

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