陈彦伟.民用飞机引气过热探测告警温度设计和验证[J].民用飞机设计与研究,2019,(3):67-70
民用飞机引气过热探测告警温度设计和验证
  
DOI:10.19416/j.cnki.1674-9804.2019.03.012
中文关键词:引气  探测  告警温度  验证
英文关键词:bleed air  detection  alarm set-point  verification
基金项目:
作者单位
陈彦伟 上海飞机设计研究院上海 201210 
中文摘要:民用飞机引气过热探测系统用于探测高温引气泄漏,防止持续泄漏的高温引气对周围的结构和设备造成损坏。探测器告警温度根据探测器周围的最高环境温度设置,根据不同的探测需求,系统可以设置不同的告警温度。系统在方案设计阶段,探测器告警温度是根据理论计算的最高环境温度设置。采用试验的方法,通过测试飞机引气过热探测器的环境温度,建立新的计算方法,修正探测器的理论最高环境温度,用于验证系统告警温度设置的合理性。
英文摘要:The bleed air overheat detection system for civil aircraft was used to detect the leakage of bleed air duct and prevent continuous leakage of high temperature bleed air exhaust on the structure and equipment. The alarm set-point is usually set according to maximum ambient temperature around sensor. But the different alarm set-points can also be set according to the detection requirement. During the stage of system design, the alarm set-point was set according to the theoretical calculation of ambient temperature. In this paper a new calculation method is established by testing the ambient temperature and correcting the sensor’s theoretical maximum ambient temperature so as to verify the rationality of the alarm set-point.
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