The Acoustic Emission Signal Acquisition Assembly for Leak Detection of Closure Plug in Heavy Water Reactor

摘要

This is the acoustic emission of non-destructive testing device designed to check for the presence or absence of leakage of heavy water reactor nuclear power plant fuel pipe plug relates to an inspection apparatus using the configuration of the present invention is to provided an apparatus for checking the leakage of the fuel tube stopper is carried in heavy water reactor nuclear power plant, the fuel pipe of the leak testing apparatus is in contact with the stopper surface of the fuel tube stopper, hwangdongpan piezoelectric acoustic sensor coupled to 501 502 and a high frequency acoustic sensor microphone 503; contains the hwangdongpan processing is terminated in the same dimension as the terminal end 500 of the fuel pipe plug to be measured is fastened to the unit 505, the middle-stage jaws (505a) characterized in that there is in the grip portion 506 is fastened to the coupling head (508) of the heat exchanger of the nuclear fuel machined end portion 505. ; In accordance with the subject innovation, the use of a device for coupling an acoustic signal generated in the fuel pipe and the fuel heat exchanger and out stopper when applying the acoustic signal collection device designed in this leak test of the fuel cap of the tube reactor By it is possible to conveniently check the entire fuel pipe quickly in the test speed and it is possible to improve the precision it is possible to measure the internal and external acoustic signals at the same time of the fuel tube stopper.