[发明专利]透平动叶

摘要

本发明公开一种设于蒸汽透平低压末级的透平动叶,在透平动叶中,从叶根部到叶顶侧,其叶片断面形状扭转形成;其中,上述动叶的水平面的叶片断面处于2轴方向,设一方的轴向为X轴,与该X轴直交的另一方的轴向为Y轴,此时,上述透平动叶的从叶根部到规定高度的叶片断面形成在分别按表1、表4、表7、表10、表13、表16、表18规定叶片断面形状的连续各点±0.3mm的范围内。这样,不在叶片中间部使用连接构件即可连接相邻叶片。

主权项

1、一种透平动叶，从叶根部到叶顶侧，其叶片断面形状扭转形成；其特征在于：上述动叶的水平面的叶片断面处于2轴方向，设一方的轴向为X轴，与该X轴直交的另一方的轴向为Y轴，此时，与上述透平动叶的叶根部的叶片断面对应的特定座标为背侧No.XY153.99-24.71250.02-17.17345.14-10.18439.48-3.82533.071.81625.976.52718.2910.21810.1512.7491.7314.0610-6.7913.8711-15.1612.2812-23.159.3213-30.515.0214-37.09-0.4115-42.73Ÿ-6.7916-47.73-13.7017-52.03-21.05腹侧No.XY152.62-25.77247.80-20.24342.25-15.44436.20-11.29529.78-7.73623.07-4.77716.11-2.4588.95-0.8391.66-0.0310-5.68-0.1211-12.95-1.0912-20.07-2.8713-26.93-5.4814-33.39-8.9515-39.49-13.0416-45.16-17.6917-50.35-22.87与上述透平动叶的距叶根部106mm的高度处的叶片断面对应的上述特定座标为背侧No.XY148.84-14.22245.04-7.24339.98-1.13433.934.03527.178.18619.8311.20712.1013.0084.1613.309-3.6912.1910-11.299.8911-18.466.4912-25.092.1213-31.11-3.0514-36.37-8.9915-41.17-15.3216-45.44-22.0117-49.16-29.01腹侧No.XY147.62-15.33242.70-10.44336.97-6.55430.70-3.59524.12-1.42617.340.03710.460.7783.530.839-3.360.1110-10.12-1.4211-16.65-3.7312-22.87-6.7813-28.72-10.5014-34.16-14.7915-39.16-19.5916-43.72-24.8017-47.82-30.39与上述透平动叶的距叶根部215mm的高度处的叶片断面对应的上述特定座标为背侧No.XY144.68-3.59239.781.83334.016.30427.559.70520.5811.89613.3312.8276.0312.598-1.0610.879-7.798.0210-14.024.2311-19.83-0.2112-25.17-5.1913-29.98-10.6814-34.41-16.4815-38.43-22.5716-42.01-28.9417-45.13-35.54腹侧No.XY143.82-4.91238.27-1.43332.231.10425.852.57519.333.17612.783.1376.282.348-0.070.759-6.25-1.4110-12.15-4.2511-17.68-7.7512-22.83-11.8013-27.66-16.2214-32.18-20.9515-36.40-25.9616-40.29-31.2317-43.84-36.73与上述透平动叶的距叶根部340mm的高度处的叶片断面对应的上述特定座标为背侧No.XY137.6913.97231.6416.22325.2116.73418.7616.27512.4414.9166.3712.7070.559.868-4.926.429-9.962.3710-14.57-2.1711-18.80-7.0712-22.72-12.2113-26.37-17.5514-29.70-23.1015-32.68-28.8416-35.38-34.7217-37.79-40.72腹侧No.XY137.8012.45231.7912.04325.8511.01420.029.47514.347.4868.795.1173.422.398-1.69-0.809-6.66-4.2210-11.36-8.0011-15.71-12.1612-19.74-16.6513-23.50-21.3514-27.08-26.2115-30.43-31.2216-33.57-36.3617-36.49-41.64与上述透平动叶的距叶根部470mm的高度处的叶片断面对应的上述特定座标为背侧No.XY126.2525.52220.9924.07316.0421.69411.4218.7057.0715.2963.0011.547-0.827.518-4.373.249-7.72-1.210-10.76-5.8611-13.58-10.6612-16.24-15.5513-18.73-20.5414-21.05-25.6115-23.20-30.7516-25.17-35.9717-26.96-41.26腹侧No.XY127.1224.37223.2820.71319.2417.22415.1213.81511.0610.3467.136.7173.352.928-0.27-1.039-3.72-5.1510-7.04-9.3711-10.18-13.7312-13.16-18.2113-15.96-22.8014-18.60-27.4915-21.12-32.2516-23.50-37.0817-25.76-41.97与上述透平动叶的距叶根部589mm的高度处的叶片断面对应的上述特定座标为背侧No.XY117.3029.70213.5826.72310.4523.1347.6419.2855.0415.2862.6311.1770.366.988-1.792.739-3.90-1.5510-5.95-5.8511-7.93-10.1812-9.86-14.5413-11.72-18.9314-13.51-23.3415-15.24-27.7816-16.90-32.2517-18.49-36.74腹侧No.XY118.4428.95216.8624.50314.4820.42411.8016.5359.1212.6566.528.7174.004.7281.550.689-0.81-3.4110-3.09-7.5411-5.31-11.7112-7.47-15.9013-9.59-20.1314-11.64-24.3815-13.64-28.6516-15.57-32.9617-17.44-37.30与上述透平动叶的距叶根部660.4mm的高度处的叶片断面对应的上述特定座标为背侧No.XY115.2930.21212.0627.2039.3923.6847.1819.8655.2315.8963.3711.8971.487.908-0.333.889-2.14-0.1510-3.94-4.1911-5.71-8.2312-7.44-12.2913-9.14-16.3714-10.80-20.4615-12.44-24.5616-14.02-28.6817-15.55-32.82腹侧No.XY116.3829.26215.3325.01313.5321.03411.3917.2259.1713.4566.999.6674.885.8382.772.0090.71-1.8510-1.29-5.7411-3.27-9.6412-5.22-13.5513-7.16-17.4714-9.07-21.4115-10.94-25.3616-12.76-29.3317-14.54-33.33上述透平动叶的上述从叶根部到规定高度的叶片断面形成在分别按上述特定座标规定叶片断面形状的连续各点的±0.3mm的范围内。