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申请/专利权人：西屋电气公司

申请日：1990-04-27

公开（公告）日：1990-11-07

公开（公告）号：CN1046780A

专利技术分类：..型式或结构（特殊材料的选用，防止侵蚀或腐蚀的措施入F01D5/28）[2006.01]

专利摘要：为电力蒸汽透平的替换低压末端叶片，它与原有设备的末端叶法相比，在长度上延长，使叶片效率更高，为改善流动特性和减少流动损失，在叶片后缘相应延伸了平的面。用叶片中的质量分布来调谐叶片，从而避免自然谐波频率与透平转速频率或谐波一致。为方便安装，对叶片根部做了修改。

专利权项：1、蒸汽透平的叶片，其特征在于，叶片的形状是由下面的尺寸确定的：位置英寸，自根部起0.0002.00105.00008.000011.0000宽英寸4.250003.985993.590003.194872.80004弦″4.276964.068463.801523.575323.38230安装角度5.9940711.1495718.8721626.4402934.00799最大厚度英寸0.493090.493360.479700.441710.36554最大厚度弦0.115280.121270.126190.123540.10807出口角度37.0099037.0152236.7762236.0143034.88362进口金属角度44.1765047.8489151.4497855.1524961.38140进口倾角度11.4008116.5394322.8469925.4745325.91233出口金属角度36.8157536.8842636.6708635.9810734.85368出口倾角度-.36321-.26176-.21057-.06632-.05841背弧弯曲0.012520.000070.000070.000060.00072面积平方英寸1.597551.466611.245421.026270.75902位置英寸，自根部起13.000015.000017.000020.000023.5000宽英寸2.534992.275022.020011.639941.22000弦英寸3.274673.185223.113623.020302.98616安装角度39.2562144.5015849.7436057.4990966.50863最大厚度英寸0.307340.271200.253980.237910.19786最大厚度弦0.093850.085140.081570.078770.06626出口角度33.5495131.9843930.0365626.0672420.73475进口金属角度68.7265684.54536101.66240131.52230156.12210进口倾角度24.6835022.4824421.1922817.0053812.38879出口金属角度33.5392831.9701230.0351026.0541420.72697出口倾角度-.02031-.01361-.00290-.00751-.01513背弧弯曲0.000070.007460.000020.009200.00020面积平方英寸0.643680.543980.492390.446780.38695位置厘米，自根部起0.0005.08312.70020.32027.940宽厘米10.79510.1249.1198.1157.112弦″10.86310.3349.6569.0818.591安装角度5.99411.15018.87226.44034.008最大厚度厘米1.2521.2531.2181.1220.928最大厚度弦0.1150.1210.1260.1240.108出口角度37.01037.01536.77636.01434.884进口金属角度44.17747.84951.45055.15261.381进口倾角度11.40116.53922.84725.47525.912出口金属角度36.81636.88436.67135.98134.854出口倾角度-0.363-0.262-0.211-0.066-0.058背弧弯曲0.0130.0000.0000.0000.001面积厘米210.3079.4628.0356.6214.897位置厘米，自根部起33.02038.10043.18050.80059.690宽厘米6.4395.7795.1314.1653.099弦厘米8.3188.0907.9097.6727.585安装角度39.25644.50249.74457.49966.509最大厚度厘米0.7810.6890.6450.6040.503最大厚度弦0.0940.0850.0820.0790.066出口角度33.55031.98430.03726.06720.735进口金属角度68.72784.545101.662131.522156.122进口倾角度24.68422.48221.19217.00512.389出口金属角度33.53931.97030.03526.05420.727出口倾角度-0.020-0.014-0.003-0.008-0.015背弧弯曲0.0000.0070.0000.0090.000面积厘米24.1533.5103.1772.8822.496

百度查询： 西屋电气公司 低压蒸汽透平的低压末端叶片