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在冰风洞内开展了结冰条件下涡轴发动机进气支板的热滑油防冰系统的防冰性能试验研究。试验设计加工了滑油电加热系统,采用可编程逻辑控制器(PLC)监控滑油的温度和流量。在冰风洞中采用全尺寸模型开展滑油防冰性能试验,所开展的涡轴发动机支板热滑油防冰试验参数包括:来流温度为-10,-5℃,来流速度为40m/s,液态水含量为0.5,1.0g/m3,过冷水滴平均体积直径为20μm。试验开展了不同结冰气候条件下、不同滑油通道位置滑油防冰进气支板防冰效果的研究,记录了支板表面温度的变化和结冰情况。试验同时得到了支板防冰能力不足时支板表面的结冰冰型和结冰环境下发动机支板热滑油防冰的特点。
Experimental study on anti-icing performance of hot oil anti-icing system with turboshaft air intake support under icing condition was carried out in ice-cooled tunnel. Test design and processing of oil heating system, the use of programmable logic controller (PLC) to monitor the temperature and flow of oil. Full-size model was used to test the anti-icing properties of ice in the ice-wind tunnel. Parameters of anti-icing test of the hot lubricating oil on the turbine shaft of the turbine shaft were as follows: the incoming flow temperature was -10 and -5 ℃, the incoming flow rate was 40 m / s, liquid water content of 0.5, 1.0g / m3, supercooled water droplets average volume diameter of 20μm. Experiments were carried out to study the anti-icing effect of the ice-supporting air-inlet supports at different oil passage locations under different icing conditions. The changes of the surface temperature and icing conditions were recorded. At the same time, the ice icing on the surface of the support plate and the anti-ice of the hot oil of the engine support plate in the icing environment were obtained when the ice-proofing ability of the support plate was insufficient.