专利名称:用于压缩机的翼片形状的制作方法
技术领域:
本发明涉及用于燃气涡轮机转子叶片的翼片。特别地,本发明涉及 用于压缩机的不同级的压缩机翼片型面。特别地,本发明涉及用于压缩 机不同级的进口导向轮叶、转子、或者定子的压缩机翼片型面。
背景技术:
在燃气涡轮机中,在燃气涡轮机的流动路径段的每个级应该满足许 多系统要求以满足设计目标。这些设计目标包括,但不限于,总体改善 的效率和翼片负荷能力。例如,且决不作为对本发明的限制,压縮机定 子的叶片应该达到特定级的热和机械方面的运行要求。此外,例如,且 决不作为对本发明的限制,压缩机转子的叶片应该达到特定级的热和机 械方面的运4于要求。
发明内容
依照本发明的一个示范性的方面,制造制品具有大致依照表l中列
出的笛卡儿坐标值X、 Y和Z的标称型面。其中X和Y为英寸距离,当 通过平滑连续弧线将它们连接时,其在每个英寸距离Z处限定翼片型面 段。在所述Z距离处的型面段彼此平滑地连接以形成完整的翼片形状。
依照本发明的另一示范性的方面,提供了一种包括压缩机轮的压缩 机。该压缩机轮具有多个制造制品。每个制造制品包括具有翼片形状的 翼片。翼片包括大致依照表1中列出的笛卡儿坐标值X、 Y和Z的标称 型面,其中X和Y为英寸距离,当通过平滑连续弧线将它们连接时, 其在每个英寸距离Z处限定翼片型面段。在所述Z距离处的型面段彼此 平滑地连接以形成完整的翼片形状。
依照本发明的示范性的又一方面,提供了 一种包括具有多个制造制 品的压缩机轮的压缩机。每个制造制品包括具有大致依照表1中列出的 笛卡儿坐标值X、 Y和Z的未涂敷的标称翼片型面的翼片,其中X和Y 为英寸距离,当通过平滑连续弧线将它们连接时,其在每个英寸距离Z 处限定翼片型面段。在所述Z距离处的型面段彼此平滑地连接以形成完
整的翼片形状。
图1为通过燃气涡轮机的多级的压缩机流动路径的示意性示范图且
示出了依照本发明的实施例的示范性翼片;
图2和3分別为依照本发明的实施例的转子叶片的透视示范图,其 示出了转子叶片翼片连同其平台和大致或者接近轴向进入的榫接部连 接;
图4和5为分别以从翼片的压力侧和吸力侧的大致周向方向观察的
图2的转子叶片和相关平台及榫接部连接的侧视图6为大致沿图5中的线6-6截取的转子叶片翼片的截面图7为依照本发明示范性的实施例的转子叶片的透视图,其上添加
了坐标系;和
图8为依照本发明示范性的实施例的定子叶片的透^L图,其上添加 了坐标系。
具体实施例方式
现在参见附图,图1示出了包括多个压缩机级的燃气涡轮机压缩机 2的轴向压缩机流动路径1。压缩才几级在图中顺序标记。压缩机流动路 径可包括任何数量的转子级和定子级,例如18。然而,转子和定子级的 精确数量是工程设计的选择。如本发明所实施的,能够在燃烧室中提供 任何数量的转子级和定子级。17个转子级仅是一个示范性的涡轮机设 计。18个转子级并不意味以任何方式限制本发明。
压缩机转子叶片将动能传递给空气流且因此获得流经压缩机的所 希望的压力上升。紧接在转子翼片后面的是定子翼片级。转子翼片和定 子翼片都使得空气流转向,(在各自的翼片参考系中)减緩空气流速度, 且产生空气流的静压力的上升。在本发明的其他所希望的方面中,翼片 的构造(连同其与周围的翼片的相互作用)及其周向表面对于级空气流 效率而言提供了改善的空气力学、从级到级的平滑层流、减小的热应 力、改善的级的相互关系以有效地使得从空气流在级间流通、以及减小 的机械应力。典型地,多排转子/定子级叠置在轴向流动压缩机中以达到 希望的排出-进入的压力比。转子翼片和定子翼片能够借助合适的接附构
造从而固定到转子轮或者定子壳体上,例如通常已知的"4艮部"、"基
部,,或者"榫接部,,(参见图2-5)。
压缩机2的级在图1中示范性地图示。压缩机2的级包括多个周向 间隔的安装在转子轮51上的转子叶片22和多个周向间隔的接附到静态 压缩机壳体59上的定子叶片23。每个转子轮接附到后驱动轴58上,其 连接到发动机的涡轮机段上。转子叶片和定子叶片位于压缩机的流动路 径1中。如本发明实施的,流经压缩才几流动路径1的空气流的方向由箭 头60所示(参见图1 )。压缩机2的所述级仅作为本发明范围内的压缩 机2的级的示范。所示的和所述的压缩才几2的级并不意"木以任何方式限 制本发明。
转子叶片22安装在形成后驱动轴58的一部分的转子轮51上。如 图2-6图示的,每个转子叶片22设置有平台61和大致轴向或者接近轴 向进入的榫接部62,其用于与转子轮51上的互补形状的配合榫接部(未 示出的)连接。然而,如本发明实施的,轴向进入的榫接部可以设置有 翼片型面部分。如图2-6中图示的,每个转子叶片22包括转子叶片翼片 63。这样,在翼片的总体形状中从平台61的中点处的翼片根部64到转 子叶片末端65的任何截面处,每个转子叶片22具有转子叶片翼片型面 (airfoil profile) 66 (参见图6 )。
为了限定转子叶片翼片的翼片形状,提供了空间中独特的点的集合 或者轨迹。该独特的点的集合或者轨迹满足级的要求,从而使得所述级 能够制造。独特的点轨迹也满足希望的对于级效率和减小的热和机械应 力的要求。点的轨迹借助使压缩机能够以有效、安全和平稳的方式运行 的空气动力负荷和机械负荷之间的迭代得到。
如本发明实施的,该轨迹限定转子叶片翼片型面,且可包括相对于 发动机的旋转轴线的点集合。例如,能够提供点集合以限定转子叶片翼 片型面。
在下表中给出的笛卡儿坐标系X、 Y和Z数值限定出转子叶片翼片 在沿其长度的不同位置处的型面。如本发明实施的,发现该翼片能够作 为第3级翼片转子叶片得到应用。X、 Y和Z坐标的坐标值以英寸列出, 尽管当这些数值适当地转换时可以使用其它的尺寸单位。这些值不包括 平台的圆角区。笛卡儿坐标系具有正交相关的X、 Y和Z轴线。如用于 转子的图7和用于定子的图8中图示,X轴线平行于压缩机叶片的榫接
部轴线,其与发动机中心线成一角度。正的x坐标值为轴向向后,例如
朝向压缩机的排气端。正的Y坐标值定向成垂直于榫接部轴线。正的Z 坐标值对于转子叶片定向为径向向外朝翼片的末端,该末端朝向压缩机 l 、 口 、 口 口口 、、 -
如图5中图示,仅用于参考目的,穿过沿叠置轴线的翼片和平台的 交叉处建立点-0。在翼片的示范性的实施例中,点-0定义为参考段,其 中上表的Z坐标为0.000英寸,其为离开发动机或者转子中心线的设定
的事先确定的距离。
通过在垂直于X、 Y平面的Z方向上的选定位置处定义X和Y坐 标值,能够确定在沿翼片长度的每个Z距离处转子叶片翼片的型面段, 例如但不限于图6中的型面段66。通过用平滑连续弧线连接X和Y值, 能够固定在每个距离Z处的每个型面段66。在距离Z之间的不同表面 位置的翼片型面通过平滑地彼此连接相邻的型面^殳66来决定,从而形 成翼片型面。这些数值代表在周围环境中的、未运行的、或者非热条件 下的翼片型面并且用于未涂敷的翼片。
表格数值产生且显示到3个小数位以便确定翼片的型面。存在典型 的制造公差以及涂层,这在实际翼片型面中需要考虑。因此,对于型面 给定的邀:值是对于标称翼片(nominal akfoil)而言的。因此可以理解, +/-典型制造公差例如+/-值以及任何涂层厚度可添加到X和Y值中。因 此,在垂直于沿翼片型面的任何表面位置的方向上的大约+/-0.160英寸
的距离限定出用于转子叶片翼片结构和压缩机的翼片型面包络线。换句 话说,如本发明实施的,在垂直于沿翼片型面的任何表面位置的方向上 大约+/-0.160英寸的距离限定出在标称的冷的或者室温的实际翼片表面 上的测量点和在相同温度下这些点的理想位置的变化范围。如本发明实 施的,转子叶片翼片结构对此变化范围是稳定的,而不损害机械和空气 动力功能。
下表l中给出的坐标值提供了用于示范性的第3级翼片转子叶片的 标称的型面包络线。
表1
X丄OC Y-1X)C Z丄OC
2.6680.2550..122
2.6680.2470.,122
2.6660.2360.122
2.6590.2250.122
2.6470,2150,,122
2.6260.2090■ 122
2.5990.2020,]22
2.5650.1930.,122
2.5240.1820.122
2.4760.1690.122
2.4190.1540.122
2.3510.1360.122
2.2730.1160.122
2.1850.0930.122
2遷0.0670.122
1.9770.0390.122
1.8570.0070.122
1.733-0.0250.122
1.603-0.0590.122
1.467-0.0940.122
1.327-0.130.122
1.181-O掘0.122
1.03-0.2010.122
0.873-0.2360.122
0.716-0.2670.122
0.558-0.2960.122
0.399-0.320.122
0.24-0.3410.122
0.081-0.3560.122
-0.08-0.3670.122
-0.241-0.3730.122
-0.403-0.3740.122
-0.565-0.3670.122
-0.726-0.3550.122
-0.887-0.3360.122
-1.042-0.3 U0.m
-1.191-0.2810.122
-1.333-0.2470.122
X-LOC Y-LOC Z^LOC
-1.467-0.210,.122
-1.595-0.1690.,122
-1.716-0.1250,,122
-1.831-0.080.122
-1.939-0.0310,.122
-2.0360.0160.,122
-2.1220.0620.122
-2.1980.1050.,m
-2.2670.1480.122
-2.3250.1890.m
-2.3680.2210.122
-2.4010.250.122
-2.4240.2730.122
-2.4390.2920.122
-2.4450.3050.122
-2,4460.3130.122
-2.4460.3170.122
-2.4450.3190.122
-2.4450.3210.122
-2,4440.3210.122
-2.4430.3230.122
-2.4410.3260.122
-2.4340.3310.122
-2.4210.3350.122
-2.3980.3380.122
-2.3680.3380.122
-2.3270.3360.122
-2.2750.3310.122
-2.2090.3230.122
-2.1330.3130.122
-2.0510.3020.122
-1.9590.2910.122
-1.8570.2790.122
-1.7450.2670.122
-1.6270.2570.122
-1.5040.2470.122
-1.3760.2390.122
-1.2430.2320.122
X-U)C Y曙LOC Z丄OC
-1.1040.2270.122
-0.960.2250,,122
-0.8110.2240.■ 122
-0.6570.2250.122
-0.5030.2260,.122
-0.3490.2290.122
-0.1950.2320.122
-0.040.2350.122
0 1140.2380.122
0.2680.2410.122
0.4220.2440.122
0.5760.2460.122
0.730.2480.122
0.8850.2490.122
1.0390.250.122
1.1880.2510.122
1.3320.2520.122
1.470.2530.122
1.6040.2550.122
1.7330.2570.122
1.8560.260.122
1.9740.2630.122
2.0820.2670.122
2.180.270.122
2.2670.2730.122
2.3440.2760.122
2.4110.2790.122
2.4670.2810.122
2.5150.2820.122
2.5560.2840.122
2.5890.2850.122
2.6160.2860.122
2.6370.2860,122
2.6510.280.122
2.6610.2710.122
2.6660.2620.122
X丄OC Y丄oc :乙-LOC
2.6340.2521.755
2.6340.2441.755
2.6320.2341.755
2.6250.2231.755
2.6120.2141.755
2.5910.2091.755
2.5650.2031.755
2.5310.1941.755
2.4910.1851.755
2.4430.1731.755
2.3870.1591.755
2.320.1431.755
2.2430.1241.755
2.1560.1041,755
2.0580.0811.755
1.9510.055.755
1.8330.0281.755
1.71-0.0011.755
1.581-0.0311.755
1.448-0.0621.755
1.309-0.0931.755
1.165-0.1241.755
1.016-0.1541.755
0.861-0.1831.755
0.706-0.211.755
0.55-0.2331.755
0.395-0.2531.755
0.238-0.2691.755
0.081-0.281.755
-0.076-0.2881.755
-0.234-0.2911.755
-0.392-0.291.755
-0.551-0.2831.755
-0.71-0.2711.755
-0.869-0.2541.755
-1.022-0.2331.755
-1.169-0.2091.755
-1.311-0.1821.755
,LOC Y-IX)C Z"U)C
-1.446-0.1521.755
-1.575-0.121.755
-1.698-0.0851.755
-1.815-0.0481.755
-1.926-0.0091.755
-2.0250.0291.755
-2.1140.0661.755
-2.1920.1011.755
-2.2640.1361.755
-2.3250.1691.755
-2.370.1971.755
-2.4060.221.755
-2.4310.241.755
-2,4470.2581.755
-2.4540.2691.755
-2.4570.2771.755
-2.4570.2811.755
-2.4570.2841.755
-2.4560.2851.755
-2.4560.2861.755
-2.4550.2881.755
-2.4530.2911.755
-2.4470.2971.755
-2.4350.3021.755
-2.4130.3081.755
-2.3830.3131.755
-2.3420.3161.755
-2.2910.3171.755
-2.2240.3181.755
-2.1480.3171.755
-2.0660.3151.755
-1.9740.3131.755
-1.8720.311.755
-1.7590.3061.755
-1.6420.3031.755
-1.5190.3011.755
-1.3910.2991.755
-1.2580.2981.755
:丄ocY-LOC :Z-LOC
-1.120.2981.755
-0.9770.2981.755
-0.8290.2981.755
-0.6750.2991.755
-0.5220.2991.755
-0.3680.2991.755
-0.2150.2991.755
-0.0610.2991.755
0麓0.2981.755
0.2450.2971.755
0.3990.2951.755
0.5520.2921.755
0.7060.291.755
0.8590.2871.755
1.0120.2831.755
1.1610.281.755
1.3040.2781.755
1.4420.2761.755
1.5750.2741,755
1.7030.2741.755
1.8260.2741.755
1.9430.2741.755
2.0510.2751.755
2.1480.2761.755
2.2350.2781.755
2.3110.2791.755
2.3780.2791.755
2.4340.281.755
2.4820.2811.755
2.5230.2821.755
2.5560.2821.755
2,5820.2831.755
2.6030.2831.755
2.6170.2781.755
2.6270.2691.755
2.6320,261.755x丄ocY-LOCZ-LOCX-LOCY-LOC :Z-LOCX-LOCY-LOCZ-LOC
2.6160.1753.389-1.466-o細3.389-1.1350.3653.389
2.6160.1683.389-1.595-o麓3.389-0.9920.3583.389
2.6130.1583.389-1.7170.0373.389-0.8440.3513.389
2.6050.1473.389-1.8330.0773.389-0.690.3443.389
2.5910.143.389-1.9430.1183.389-0.5370.3373.389
2.570.1353.389-2.0420.1583.389-0.3840.333.389
2.5440.133.389-2.130.1973.389-0.230.3223.389
2.510.1233.389-2.2080.2343.389-0.0770.3143.389
2.4690.1143.389-2.2790.2713.3890.0760.3063.389
2.4210.1043.389-2.3390.3053.3890.2290.2973.389
2.3640.0923.389-2.3850.3333.3890.3830.2883.389
2.2970.0773.389-2.420.3573.3890.5360.2793.389
2.2190.0613.389-2.4450.3773.3890.6890.2693.389
2.1310.0443.389-2.4620.3953.3890.8420.263.389
2.0330.0243.389-2.4690.4063.3890.9950.2513.389
1.9240.0023.389-2.4720.4143.3891.1430.2423.389
1.805-0.0223.389-2.4720.4183.3891.2860.2353.389
1.681-0.0463.389-2.4720.423.3891.4240.2283.389
1.552-0.0713.389-2.4710.4213.3891.5570.2223.389
1.417-0.0973.389-2.4710.4223.3891.6850.2183.389
1.277-0.1223.389-2.470.4243.389l細0.2143.389
1.132-0.1463.389-2.4680.4273.3891.9250.2113.389
0.982-0.169'3.389-2.4610.4323.3892.0330.2093.389
0.826-0.193.389-2.4490.4373.3892.130.2083.389
0.67-0.2083.389-2.4260.4413.3892.2170.2083.389
0.514-0.2233.389-2.3960.4433.3892.2940.2073.389
0.359-0.2333.389-2.3550.4433.3892.360.2063.389
0.203-0.2393.389-2.3040.4423.3892.4170.2063.389
0.046-0.2413.389-2.2370.4383.3892.4650.2053.389
-0.11-0.2383.389-2.1610.4333.3892.5050.2053.389
-0.266-0.2323.389-2.0790.4273.3892.5380.2053.389
-0.423-0.2213.389-1.9870.423.3892.5650.2053.389
-0.579-0.2063.389-1.8850.4123.3892.5850.2053.389
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:-LOC Y-LOC Z-LOC
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0.175-0.54216.457
0.309-0.63316.457
0.443-0.72316.457
0.577-0.81316.457
0.711-0.90316.457
0.846-0.99216.457
0.977-1.07716.457
1.104-1.15816.457
1.227-1.23616.457
1.346-1.30916.457
1.461-1.37816.457
1.573-1.44316.457
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2.187-1.76116.457
2.226-1.77816.457
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还可以理解的是,上表l中披露的示范性的翼片可以几何地按比例 增加或者减小以便在其他类似压缩机设计中使用。因此,表l中列出的 坐标值可以按比例增加或者减小,使得翼片型面形状保持不变。表l中
坐标的比例缩放型式可以由表1中的X、 Y和Z坐标值乘以或者除以常 数来表示。
虽然在此描述了不同的实施例,但是从本说明书中可以理解的是, 本领域的技术人员可获得在本发明的范围内的不同元件的组合、改变或 者改进。
部件列表
轴向压缩才几流动路;g: 1 燃气涡轮机压缩机2 周向间隔的转子叶片22 转子轮51
周向间隔的定子叶片23 静态的压缩机壳体59 后驱动轴58 空气流方向箭头60 平台61
轴向进入的榫接部62 转子叶片翼片63 转子叶片翼片型面66 翼片根部64 转子叶片末端65 型面段6权利要求
1.一种制造制品,该物品具有大致依照表1中列出的笛卡儿坐标值X、Y和Z的标称型面,其中X和Y为英寸距离,当通过平滑连续弧线将它们连接时,X和Y在每个英寸距离Z处限定翼片型面段,所述型面段在所述Z距离处彼此平滑地连接以形成完整的翼片形状(22,23)。
2. 根据权利要求1所述的制造制品,其特征在于,该物品包括翼 片(22, 23)。
3. 根据权利要求2所述的制造制品,其特征在于,所述物品形状 位于沿垂直于任何物品表面位置的方向上土0.160英寸内的包络线中。
4. #4居权利要求1所述的制造制品,其特征在于,该物品包括转 子(22 )。
5. —种包括具有多个制造制品的压缩机轮的压缩机,每个所述的 制造制品包括具有翼片形状的翼片,所述翼片具有大致依照表l中列出 的笛卡儿坐标值X、 Y和Z的标称型面,其中X和Y为英寸距离,当通 过平滑连续孤线将它们连接时,X和Y在每个英寸距离Z处限定翼片型 面段,所述型面段在所述Z距离处;&此平滑地连接以形成完整的翼片形 状(22, 23 )。
6. 根据权利要求5所述的压缩机,其特征在于,该制造制品包括 转子(22 )。
7. —种包括具有多个制造制品的压缩机轮(51)的压缩机(2), 每个所述的制造制品包括具有大致依照表1中列出的笛卡儿坐标值X、 Y和Z的未涂敷的标称翼片型面的翼片,其中X和Y为英寸距离,当 通过平滑连续弧线将它们连接时,X和Y在每个英寸距离Z处限定翼片 型面段,所述型面段在所述Z距离处彼此平滑地连接以形成完整的翼片 形状(22, 23),所述X和Y距离可以作为相同常数或者数的函数按 比例缩放,以提供按比例增加或者按比例减小的转子叶片翼片(22, 23)。
8. 根据权利要求7所述的压缩机(2),其特征在于,该制造制品 包括转子(22 )。
9. 根据权利要求7所述的压缩机(2),其特征在于,所述的翼片 形状位于沿垂直于任何翼片表面位置的方向土0.160英寸内的包络线中。
全文摘要
本发明涉及用于压缩机的翼片形状,其中提供了一种制造制品,其具有大致依照表1中列出的笛卡儿坐标值X、Y和Z的标称型面。其中X和Y为英寸距离,当通过平滑连续弧线将它们连接时,X和Y在每个英寸距离Z处限定翼片型面段。在所述Z距离处的型面段彼此平滑地连接以形成完整的翼片形状。
文档编号F04D29/38GK101169130SQ20071018145
公开日2008年4月30日 申请日期2007年10月25日 优先权日2006年10月25日
发明者D·科伦布斯, P·金 申请人:通用电气公司