[특허]Method and apparatus for detecting and locating defects in a component of a turbine

Method and apparatus for detecting and locating defects in a component of a turbine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01H-013/00 G01M-013/00 G01N-029/12
출원번호	US-0198882 (1994-02-17)
우선권정보	DE-4127395 (1991-08-19)
발명자 / 주소	Zrner Walter (Baiersdorf DEX)
출원인 / 주소	Siemens Aktiengesellschaft (Munich DEX 03)
인용정보	피인용 횟수 : 68 인용 특허 : 0

초록 ▼

In a method for the early detection and location of a change in a component of a turbine, in particular in a turbine blade, in the event of a deviation from a standard value in at least one measured value determined during operation of the turbine, an acoustic spectrum generated by the component is measured in the interior of the turbine and compared with a reference spectrum. In order to increase the intensity of signals in the acoustic spectrum, the components of the turbine, preferably runner blades, are excited from outside to acoustic emission (resonance test). An apparatus has a number of sensors for recording operating parameters of the turbine. The sensors are connected to a device for measured value conditioning. In order to detect and locate changes, an acoustic measurement probe which can be inserted from the outside into the interior of the turbine, is connected to the device.

대표청구항 ▼

A method for detecting and locating defects in a component of a turbine, which comprises: determining at least one measured value during operation of a turbine; comparing the at least one measured value to a standard for detecting a defect; and when a deviation from the standard value in the at least one measured value is determined during operation of the turbine, inserting a probe into the interior of the turbine; and measuring a first acoustic spectrum generated by a component of the turbine with the probe and comparing the first acoustic spectrum with a first reference spectrum to locate the defect.

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Method and apparatus for detecting and locating defects in a component of a turbine 원문보기

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Method and apparatus for detecting and locating defects in a component of a turbine 원문보기

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