PROBLEM TO BE SOLVED: To reliably detect leakage even at a small flow rate, which corresponds to a defect of a pipe at the initial stage, by using a linear sensor without requiring an expensive device.SOLUTION: A piping structure 10 included by an aircraft includes: a pipe 11 through which bleed air at higher temperature than the temperature of a surrounding atmosphere flows; a cover 13 which covers an outer peripheral part of the pipe 11 and which defines a plurality of vent holes 14 allowing the bleed air leaking from the pipe 11 to flow out; and a linear sensor 31 which passes through a position corresponding to each of the plurality of vent holes 14 and which responds to the temperature or concentration of air outside the cover 13. The sensor 31 includes ranges R1, R2, R3 located above the positions corresponding to the vent holes 14.SELECTED DRAWING: Figure 3
【課題】高価な装置を必要とせず、線状のセンサを用いていながら、配管の初期段階の欠陥に対応する小流量のリークをも確実に検知すること。【解決手段】航空機が備える配管構造10は、周囲の雰囲気の温度よりも高い温度の抽気が流れる配管11と、配管11の外周部を覆い、配管11からリークした抽気を流出させる複数の通気孔14を規定するカバー13と、複数の通気孔14の各々に対応する位置を通り、カバー13の外側の気体の温度または濃度に感応する線状のセンサ31と、を備えている。センサ31は、通気孔14に対応する位置から上方へと立ち上がる範囲R1,R2,R3を含む。【選択図】図3
PIPING STRUCTURE AND AIRCRAFT
配管構造および航空機
2016-08-22
Patent
Electronic Resource
Japanese
AIR CONDITIONING PIPING STRUCTURE FOR AIRCRAFT AND AIR CONDITIONING SYSTEM
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