【摘要】 本文探讨以氮膜冷却取代气膜冷却。热物性分析表明:氮膜冷却效果高于空气膜的3.4％,氮介质通道内的粘性流动损失比空气质损失小3％,重要的是氮膜对高温涡轮叶片具有惰性防护作用,增强其抗氧化抗腐蚀抗烧蚀能力。更多还原

【Abstract】 The paper argnes that fesebility cooling with nitrogen ins tead of air. According the analysis of Objects beaten quality: the effect of nitrogen Cooling is betten than that of air by3. 4 percent but the loss of Shieky flowing through passaye it less then the airs by 3 percent . Above all nitrogen Can inertia Protect the turbine blades with high tempreture. So increase the ability of fighting the Oxidation,the corrode and the heatem.更多还原