System and method for detecting leakage of high-temperature gas in high-temperature high-pressure guide pipe of airplane
A high-temperature, high-pressure, and high-temperature gas technology, applied in the field of high-temperature gas leakage detection systems, can solve problems such as false alarms on the insulation layer, complicated lines, and difficulty in judging leakage, and achieve the effects of ensuring flight safety, improving dispatch rates, and high reliability
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[0021] according to figure 1 As shown, the aircraft high-temperature gas conduit leakage detection system and method of the present invention are composed of two axial thermistor detection lines 1 , a wire mounting frame 2 , a diversion hole 3 and a temperature trigger 4 . The thermistor detection line 1 is divided into several detection units by using the lead mounting frame 2 . Each measuring unit is composed of a section of axial wire of line AB and a section of axial wire of line CD, and a circumferential thermistor detection loop connected in series between the sections. Each measuring unit is responsible for monitoring an area.
[0022] The thermal thermistor wire in the measurement unit has a high temperature coefficient of resistance. According to the relationship between resistance and temperature, it is divided into a positive temperature system thermistor and a negative temperature coefficient thermistor. The resistance of the former increases sharply with the incr...
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