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电动活门在飞机环控系统中有重要的作用,飞机环控系统配套用活门在出厂检验、可靠性试验及活门的性能鉴定中都需要进行性能测试。结合西门子S7-200CPU224、EM235等模拟量扩展模块,压力温度变送器、气动薄膜阀、电动调节阀和加热器等硬件建立的基于PLc的电动活门试验平台,可以实现不同温度、压力下同时对两台活门试验件开闭活门时间及电机电流的检测,自动化程度高,可靠性高,且避免了现场噪声对人体的危害。
Electric valve in the aircraft loop control system has an important role in supporting the use of the aircraft loop control valve in the factory inspection, reliability testing and valve performance appraisal in the need for performance testing. Combined with Siemens S7-200CPU224, EM235 and other analog expansion modules, pressure and temperature transmitters, pneumatic valves, electric valves and heaters and other hardware-based PLc-based electric valve test platform can be achieved at different temperatures and pressures simultaneously Two valve test valve opening and closing valve time and motor current detection, high degree of automation, high reliability, and to avoid the on-site noise on the human body hazards.