High pressure heater internal leakage fault diagnosis device based on acoustic emission detection
A technology of fault diagnosis device and high-pressure heater, which is applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum degree for liquid tightness measurement, etc., can solve problems such as high detection technology requirements, achieve high sensitivity, Improve security and real-time performance, simple structure effect
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[0020] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
[0021] Such as figure 1 with figure 2 As shown, the high-pressure heater internal leakage fault diagnosis device based on acoustic emission detection of the present invention includes a main control unit 8, a signal processing unit 5 and two acoustic emission sensors 4 fixed on the high-pressure heater shell 2, and the acoustic emission sensor 4 It is used to collect the acoustic emission signal when the internal leakage of the high-pressure heater occurs, convert the acoustic emission signal into an electrical signal, and then transmit it to the main control unit 8 through the signal processing unit 5, and the main control unit 8 is used to perform spectrum analysis on the above electrical signal Analysis and leak location analysis. Two acoustic emission sensors 4 can locate the leak of the high-pressure heater, and simultaneously mon...
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