專利名稱：第1級(jí)高壓渦輪葉片葉型的制作方法
背景技術(shù)：
本發(fā)明是按照與能源部簽定的No.DE-FC21-95MC31176合同，在政府的支持下完成的。
本發(fā)明涉及燃?xì)廨啓C(jī)級(jí)的渦輪葉片，尤其涉及第1級(jí)渦輪葉片的翼面輪廓。
近年來，先進(jìn)的燃?xì)廨啓C(jī)趨向于提高燃燒溫度并努力改進(jìn)渦輪各個(gè)零部件的冷卻條件。在受讓人的一個(gè)特定的燃?xì)廨啓C(jī)設(shè)計(jì)中，正在開發(fā)一種采用蒸汽和空氣聯(lián)合冷卻，聯(lián)合循環(huán)效率達(dá)到60％的大功率燃?xì)廨啓C(jī)。人們將會(huì)認(rèn)識(shí)到這種渦輪葉片的設(shè)計(jì)和制造，尤其是該渦輪的第1級(jí)渦輪的葉片的設(shè)計(jì)和制造需要最優(yōu)化的氣動(dòng)力學(xué)效率以及葉片的氣動(dòng)力學(xué)負(fù)荷及機(jī)械負(fù)荷。另外，高壓渦輪的幾個(gè)級(jí)之間的互相影響也是一個(gè)因素。
發(fā)明概述按照本發(fā)明的一個(gè)實(shí)施例，為一個(gè)渦輪級(jí)，最好為第一級(jí)渦輪提供一種獨(dú)特的渦輪葉片翼面輪廓，它可以由一些點(diǎn)的獨(dú)特的軌跡來限定以按照負(fù)荷需求達(dá)到所需的效率，因此而改進(jìn)渦輪的性能。要知道，由表1的X、Y、Z坐標(biāo)給出的名義輪廓線限定了這些點(diǎn)的獨(dú)特的軌跡。表1中給出的坐標(biāo)是相對(duì)冷態(tài)的，即相對(duì)于這些葉片的幾個(gè)斷面的室溫輪廓。每一個(gè)所確定的斷面與相鄰的斷面平滑地連接以形成完整的翼面形狀。還要知道，隨著在使用中葉片溫度升高，該輪廓將隨溫度和應(yīng)力的變化而變化。這樣，冷態(tài)或室溫下的輪廓是由X，Y，Z坐標(biāo)所給出，以便制造、加工。因?yàn)榧庸ず蟮娜~片翼面形狀可能與下表中給出的名義翼面輪廓有所不同，在沿名義輪廓的垂直于任何表面位置的方向上離名義輪廓±0.100英寸的距離，它包含任何涂層工藝，限定了這種設(shè)計(jì)的輪廓包絡(luò)面。
還應(yīng)知道，該翼面可按幾何比例放大或縮小，以應(yīng)用于其他類似的渦輪設(shè)計(jì)。因此，以下給出的名義翼面輪廓的X，Y，Z坐標(biāo)是同一常數(shù)或數(shù)字的函數(shù)。也即表中所給出的X，Y，Z坐標(biāo)值可被乘以或除以同一常數(shù)或數(shù)字而得到按比例放大的或縮小的葉片翼面輪廓模式，而同時(shí)保持翼面斷面形狀。
在本發(fā)明的一個(gè)優(yōu)選實(shí)施例中，提供一種渦輪葉片，其葉片翼面為一個(gè)沿垂直于任何葉片表面位置方向處于±0.100英寸內(nèi)的包絡(luò)面，其中該葉片翼面的不含涂層的名義輪廓實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。
在本發(fā)明的一個(gè)優(yōu)選實(shí)施例中，提供一種渦輪葉片，其葉片翼面形狀為一個(gè)沿垂直于任何翼面表面位置方向處于±0.100英寸內(nèi)的包絡(luò)面，其中該翼面的不含涂層的名義輪廓實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。
在本發(fā)明的另一個(gè)優(yōu)選實(shí)施例中，提供一種渦輪葉片，其不含涂層的名義翼面形狀為實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。X，Y和Z值作為同一常數(shù)或數(shù)字的函數(shù)被改變比例，以產(chǎn)生按比例放大或縮小的葉片翼面。
在本發(fā)明的另一個(gè)優(yōu)選實(shí)施例中，提供一種包括一個(gè)具有若干葉片的渦輪葉輪的渦輪，每個(gè)所述葉片的翼面形狀為沿垂直于任何葉片翼面表面位置方向處于±0.100英寸內(nèi)的包絡(luò)面，其中該翼面的不含涂層的名義輪廓實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。
在本發(fā)明的另一個(gè)優(yōu)選實(shí)施例中，提供一種包括一個(gè)具有若干葉片的渦輪葉輪的渦輪，每個(gè)所述葉片的不含涂層的名義翼面輪廓為實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。X，Y，和Z值作為同一常數(shù)和數(shù)字的函數(shù)被改變比例，以產(chǎn)生按比例放大和縮小的葉片。
附圖簡(jiǎn)述

圖1是一個(gè)渦輪葉片的側(cè)視圖，它包括按照本發(fā)明而制造的一個(gè)翼面、根部和燕尾部分；圖2是一個(gè)透視圖；圖3是沿徑向方向向內(nèi)看的葉片放大端視圖；圖4是該葉片的透視圖；圖5是該葉片的軸向視圖；圖6是圖5中所示葉片的放大圖；圖7是該葉片的翼面輪廓的示意圖；圖8是具有采用這些葉片的1級(jí)渦輪葉輪的渦輪示意圖。
本發(fā)明的詳細(xì)說明現(xiàn)在參看附圖，尤其圖1和圖2，它們表示了一個(gè)按照本發(fā)明制造的渦輪葉片，包括安裝在平臺(tái)12上的翼面10，而這個(gè)平臺(tái)座則由根部14所支撐。根部14的徑向內(nèi)端支撐一個(gè)將該葉片連接到渦輪葉輪上(圖中未顯出)的燕尾榫16。葉片10、平臺(tái)12、和燕尾榫16集中地稱為一個(gè)葉片，總的標(biāo)以17。翼面10具有復(fù)合曲率，分別具有負(fù)壓側(cè)18和壓力側(cè)20。象通常那樣，燕尾部分16與渦輪葉輪上的燕尾形槽相匹配，并且若干葉片，最好是60片葉片圍繞葉輪和渦輪轉(zhuǎn)子軸線沿圓周間隔排列。另外，在葉柄14的軸向的前后側(cè)形成葉輪間隙密封件22，即角形翼。最好，該葉片與冷卻通道，最好為蒸汽冷卻通道整體鑄造，這些通道(未示)，通向包括翼面10的葉片的內(nèi)部。
現(xiàn)在參看圖2，圖中表示了在表1中給出的X，Y，Z值笛卡兒坐標(biāo)系。該笛卡兒坐標(biāo)系具有互正交的X，Y，Z軸，Z軸垂直于包含X和Y值的平面延伸。Z距離以翼面徑向最內(nèi)端的氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)。Z軸平行于渦輪轉(zhuǎn)子中心線，即轉(zhuǎn)軸。在確定了在垂直于X，Y平面的Z方向上的選定位置處的X，Y坐標(biāo)值以后，翼面10的輪廓線就可以確定了。把X，Y值用平滑、連續(xù)的弧線連接起來，在每個(gè)距離Z處的每個(gè)輪廓斷面就能確定了。在每?jī)蓚€(gè)距離Z之間的各個(gè)表面位置處的表面輪廓互相平滑連接以形成該翼面。表1中給出的數(shù)值是以英寸為單位，并代表了在環(huán)境溫度時(shí)、非運(yùn)轉(zhuǎn)條件或非熱態(tài)下的翼面輪廓，并且是不含有涂層的翼面。符號(hào)通常指定Z值為正值，而X和Y坐標(biāo)值為正值和負(fù)值，如同通常在笛卡兒坐標(biāo)系中所使用的。
雖然表1中的值是四位數(shù)，但是按制造的局限來看，適于成形翼面的實(shí)際有效數(shù)值只要三位數(shù)即足夠了。另外，在翼面的實(shí)際輪廓中還必須考慮通常的制造公差以及葉片表面的涂層。因此，表1中所給出的值是適用于葉片的名義翼面的。因此要知道，要把±制造公差，即正，負(fù)值及冷卻厚度加到表1中給出的X，Y數(shù)值上。因此，沿翼面輪廓垂直于任何表面位置的方向上的±0.100英寸的距離限定了該渦輪特定的葉片設(shè)計(jì)的翼面輪廓的包絡(luò)面。
表1中給出的坐標(biāo)值提供了優(yōu)選的名義輪廓包絡(luò)面。
表1XY Z2.4772 -2.3232 0.0002.3662 -2.3123 0.0002.2985 -2.2170.0002.2384 -2.1157 0.0002.176-2.0160.0002.1121 -1.9172 0.0002.0466 -1.8193 0.0001.9795 -1.7226 0.0001.9106 -1.6272 0.0001.8398 -1.5333 0.0001.767-1.4408 0.0001.6922 -1.3499 0.0001.6154 -1.2607 0.0001.5366 -1.1733 0.0001.4556 -1.0879 0.0001.3726 -1.0045 0.0001.2874 -0.9233 0.0001.2001 -0.8444 0.0001.1106 -0.7680.0001.0188 -0.6943 0.0000.9248 -0.6234 0.0000.8286 -0.5557 0.0000.7301 -0.4913 0.0000.6294 -0.4303 0.0000.5266 -0.3731 0.0000.4216 -0.3199 0.0000.3147 -0.2709 0.0000.2057 -0.2263 0.0000.095-0.1864 0.000-0.0173 -0.1514 0.000-0.1312 -0.1216 0.000-0.2463 -0.0972 0.000-0.3625 -0.0784 0.000-0.4794 -0.0652 0.000-0.5969 -0.0576 0.000-0.7145 -0.0553 0.000-0.8322 -0.0579 0.000-0.9497 -0.0648 0.000-1.0669 -0.0755 0.000-1.1838 -0.0888 0.000
XY Z-1.3006 -0.1029 0.000-1.4176 -0.1161 0.000-1.5348 -0.1263 0.000-1.6525 -0.1293 0.000-1.7697 -0.1202 0.000-1.8842 -0.0937 0.000-1.9916 -0.0461 0.000-2.0868 0.02280.000-2.166 0.10960.000-2.224 0.21170.000-2.2539 0.32510.000-2.255 0.44260.000-2.2343 0.55830.000-2.1995 0.67070.000-2.1547 0.77950.000-2.1016 0.88450.000-2.0418 0.98590.000-1.9768 1.08390.000-1.907 1.17870.000-1.8329 1.27010.000-1.7546 1.35790.000-1.6723 1.44210.000-1.586 1.52220.000-1.4959 1.59780.000-1.402 1.66870.000-1.3044 1.73450.000-1.2033 1.79460.000-1.0987 1.84860.000-0.9909 1.89580.000-0.8802 1.93570.000-0.7669 1.96730.000-0.6514 1.98990.000-0.5344 2.00270.000-0.4168 2.00540.000-0.2994 1.99780.000-0.1832 1.97970.000-0.069 1.95110.0000.0422 1.91280.0000.1499 1.86540.0000.2535 1.80960.0000.3527 1.74630.0000.4474 1.67640.0000.5378 1.60110.0000.6241 1.52110.0000.7066 1.43720.0000.7854 1.34980.000
X Y Z0.86061.2593 0.0000.93261.1662 0.0001.00161.0708 0.0001.06780.9735 0.0001.13170.8747 0.0001.19360.7746 0.0001.25350.6733 0.0001.31170.571 0.0001.36830.4678 0.0001.42340.3638 0.0001.47720.2591 0.0001.52990.1539 0.0001.58150.0481 0.0001.6323-0.05810.0001.6822-0.16460.0001.7314-0.27160.0001.78 -0.37880.0001.8279-0.48630.0001.8753-0.594 0.0001.9222-0.702 0.0001.9686-0.81010.0002.0148-0.91840.0002.0605-1.02680.0002.1059-1.13540.0002.1511-1.24410.0002.1959-1.35290.0002.2405-1.46180.0002.2849-1.57080.0002.3291-1.67990.0002.3731-1.789 0.0002.4167-1.89830.0002.4594-2.008 0.0002.5035-2.11710.0002.5379-2.22870.0002.4691-2.32430.5002.3569-2.312 0.5002.2897-2.21470.5002.2299-2.11160.5002.168 -2.00990.5002.1047-1.909 0.5002.0402-1.80890.5001.9741-1.70980.5001.9064-1.61190.5001.8368-1.51520.5001.7654-1.41990.5001.6921-1.32610.500
X Y Z1.6168-1.23380.5001.5395-1.14310.5001.4602-1.05430.5001.3789-0.96730.5001.2954-0.88240.5001.2097-0.79970.5001.1217-0.71940.5001.0315-0.64170.5000.9389-0.56680.5000.8439-0.495 0.5000.7465-0.42650.5000.6467-0.36150.5000.5444-0.30050.5000.4398-0.24360.5000.3328-0.19140.5000.2235-0.144 0.5000.1122-0.10170.500-0.001-0.06480.500-0.116-0.03370.500-0.2324 -0.00880.500-0.35 0.0099 0.500-0.4685 0.0222 0.500-0.5874 0.0281 0.500-0.7065 0.028 0.500-0.8254 0.0222 0.500-0.9440.0112 0.500-1.062-0.00460.500-1.1796 -0.02360.500-1.2968 -0.04440.500-1.4141 -0.06540.500-1.5317 -0.08380.500-1.6502 -0.09560.500-1.7692 -0.09490.500-1.8864 -0.07450.500-1.9962 -0.02910.500-2.0930.0398 0.500-2.1748 0.1261 0.500-2.2333 0.2294 0.500-2.2605 0.345 0.500-2.26 0.4639 0.500-2.2401 0.5812 0.500-2.2074 0.6957 0.500-2.1647 0.8068 0.500-2.1138 0.9145 0.500-2.0564 1.0188 0.500-1.9934 1.1199 0.500
X Y Z-1.9253 1.2175 0.500-1.8524 1.3117 0.500-1.7751 1.4023 0.500-1.6935 1.4891 0.500-1.6078 1.5717 0.500-1.5179 1.6499 0.500-1.4241 1.7232 0.500-1.3263 1.7912 0.500-1.2248 1.8533 0.500-1.1196 1.9091 0.500-1.011 1.9581 0.500-0.8994 1.9994 0.500-0.7849 2.0323 0.500-0.6682 2.0559 0.500-0.5499 2.0694 0.500-0.4309 2.0726 0.500-0.3121 2.0652 0.500-0.1945 2.047 0.500-0.079 2.018 0.5000.0335 1.9789 0.5000.1423 1.9306 0.5000.2468 1.8736 0.5000.3468 1.8089 0.5000.4422 1.7376 0.5000.5332 1.6608 0.5000.621.5793 0.5000.7029 1.4938 0.5000.7819 1.4048 0.5000.8574 1.3126 0.5000.9296 1.2179 0.5000.9988 1.121 0.5001.0652 1.0222 0.5001.1294 0.9218 0.5001.1914 0.8201 0.5001.2514 0.7173 0.5001.3097 0.6134 0.5001.3663 0.5086 0.5001.4214 0.4031 0.5001.4752 0.2968 0.5001.5278 0.1899 0.5001.5793 0.0826 0.5001.63-0.02520.5001.6797 -0.13340.5001.7287 -0.242 0.5001.777 -0.35080.5001.8246 -0.46 0.500
XY Z1.8717 -0.5694 0.5001.9183 -0.6790.5001.9644 -0.7888 0.5002.0101 -0.8988 0.5002.0555 -1.0089 0.5002.1005 -1.1191 0.5002.1452 -1.2295 0.5002.1897 -1.34 0.5002.2339 -1.4506 0.5002.278-1.5612 0.5002.3218 -1.6719 0.5002.3656 -1.7827 0.5002.4089 -1.8937 0.5002.4512 -2.0050.5002.4952 -2.1156 0.5002.5298 -2.2286 0.5002.4611 -2.3256 1.0002.3479 -2.3119 1.0002.2812 -2.2124 1.0002.2219 -2.1074 1.0002.1607 -2.0036 1.0002.0985 -1.9004 1.0002.0352 -1.7979 1.0001.9706 -1.6962 1.0001.9044 -1.5955 1.0001.8365 -1.4959 1.0001.7668 -1.3975 1.0001.6954 -1.3005 1.0001.622-1.2049 1.0001.5467 -1.1108 1.0001.4694 -1.0184 1.0001.39 -0.9277 1.0001.3083 -0.8391 1.0001.2244 -0.7526 1.0001.1381 -0.6685 1.0001.0493 -0.5871 1.0000.9579 -0.5085 1.0000.864-0.4331.0000.7674 -0.3611.0000.6681 -0.2927 1.0000.566-0.2286 1.0000.4613 -0.1691.0000.3539 -0.1144 1.0000.244-0.0651.0000.1317 -0.0212 1.0000.0173 0.01651.000
X Y Z-0.0991 0.04781.000-0.2171 0.07231.000-0.3363 0.08991.000-0.4563 0.10041.000-0.5768 0.104 1.000-0.6972 0.10111.000-0.8174 0.09211.000-0.9370.07741.000-1.0559 0.05771.000-1.1741 0.03441.000-1.2919 0.00891.000-1.4095 -0.0172 1.000-1.5276 -0.0416 1.000-1.6466 -0.0605 1.000-1.7668 -0.0678 1.000-1.8864 -0.0548 1.000-1.9991 -0.0133 1.000-2.0986 0.05431.000-2.1829 0.14021.000-2.2409 0.24521.000-2.2673 0.36251.000-2.2684 0.48291.000-2.2515 0.60211.000-2.2215 0.71881.000-2.1812 0.83231.000-2.1323 0.94241.000-2.0764 1.04921.000-2.0145 1.15251.000-1.9471.25241.000-1.8745 1.34861.000-1.7973 1.44111.000-1.7157 1.52981.000-1.6298 1.61431.000-1.5396 1.69431.000-1.4454 1.76941.000-1.3472 1.83921.000-1.2451 1.90321.000-1.1393 1.96091.000-1.0301 2.01181.000-0.9177 2.05511.000-0.8023 2.09 1.000-0.6846 2.11551.000-0.5651 2.131 1.000-0.4447 2.13591.000-0.3244 2.13 1.000-0.2052 2.11271.000
XY Z-0.0881 2.0843 1.0000.0259 2.0455 1.0000.1361 1.9968 1.0000.2419 1.9391 1.0000.3428 1.8733 1.0000.4391.8007 1.0000.5305 1.7224 1.0000.6177 1.6392 1.0000.7008 1.5519 1.0000.7799 1.461 1.0000.8553 1.367 1.0000.9275 1.2705 1.0000.9965 1.1717 1.0001.0629 1.0712 1.0001.1269 0.9691 1.0001.1888 0.8656 1.0001.2487 0.7611 1.0001.3068 0.6555 1.0001.3632 0.549 1.0001.4182 0.4418 1.0001.4718 0.3338 1.0001.5243 0.2253 1.0001.5757 0.1164 1.0001.6262 0.0069 1.0001.6759 -0.10291.0001.7247 -0.213 1.0001.7729 -0.32351.0001.8203 -0.43431.0001.8672 -0.54531.0001.9136 -0.65651.0001.9595 -0.768 1.0002.0051 -0.87951.0002.0502 -0.99131.0002.095-1.10321.0002.1395 -1.21521.0002.1837 -1.32731.0002.2276 -1.43951.0002.2714 -1.55181.0002.315-1.66411.0002.3585 -1.77651.0002.4015 -1.88911.0002.4436 -2.002 1.0002.4874 -2.11431.0002.522-2.22881.0002.4524 -2.32631.5002.338-2.31081.500
XY Z2.2721 -2.20891.5002.2132 -2.102 1.5002.1527 -1.99611.5002.0913 -1.89071.5002.0287 -1.78591.5001.9646 -1.682 1.5001.899-1.57911.5001.8318 -1.47731.5001.7629 -1.37661.5001.6923 -1.27711.5001.6197 -1.179 1.5001.5453 -1.08231.5001.4688 -0.98721.5001.3903 -0.89381.5001.3097 -0.80221.5001.2267 -0.71271.5001.1414 -0.62551.5001.0535 -0.54091.5000.9631 -0.459 1.5000.8699 -0.38011.5000.7741 -0.30461.5000.6755 -0.23281.5000.574-0.165 1.5000.4698 -0.10161.5000.3626 -0.04321.5000.2528 0.0098 1.5000.1402 0.057 1.5000.0253 0.0979 1.500-0.0919 0.1319 1.500-0.211 0.1585 1.500-0.3315 0.1773 1.500-0.453 0.188 1.500-0.575 0.1907 1.500-0.6969 0.1857 1.500-0.8183 0.1736 1.500-0.9388 0.1547 1.500-1.0583 0.1298 1.500-1.1767 0.1005 1.500-1.2945 0.0685 1.500-1.412 0.0355 1.500-1.5299 0.0041 1.500-1.6491 -0.02161.500-1.7703 -0.03471.500-1.8918 -0.02591.500-2.007 0.0132 1.500-2.1091 0.0796 1.500
XY Z-2.1948 0.16611.500-2.2526 0.27291.500-2.2773 0.39211.500-2.2781 0.514 1.500-2.2618 0.63491.500-2.2329 0.75341.500-2.1938 0.86891.500-2.1462 0.98131.500-2.0916 1.09041.500-2.0309 1.19621.500-1.9645 1.29861.500-1.8929 1.39741.500-1.8166 1.49261.500-1.7357 1.58391.500-1.6502 1.67091.500-1.5603 1.75341.500-1.466 1.83081.500-1.3676 1.903 1.500-1.2652 1.96931.500-1.1589 2.02921.500-1.049 2.08221.500-0.9357 2.12731.500-0.8193 2.16381.500-0.7003 2.19081.500-0.5795 2.20731.500-0.4576 2.21291.500-0.3358 2.20711.500-0.215 2.18971.500-0.0966 2.16061.5000.0187 2.12061.5000.1299 2.07051.5000.2364 2.01111.5000.3379 1.94341.5000.4344 1.86871.5000.5261 1.78821.5000.6133 1.70291.5000.6963 1.61351.5000.7752 1.52041.5000.8504 1.42431.5000.9222 1.32571.5000.9911.22491.5001.0571 1.12231.5001.1208 1.01831.5001.1824 0.91291.5001.2421 0.80651.5001.3 0.69911.500
XY Z1.3563 0.59091.5001.4112 0.48191.5001.4648 0.37221.5001.5172 0.262 1.5001.5686 0.15141.5001.6191 0.04031.5001.6688 -0.0711 1.5001.7178 -0.1829 1.5001.766-0.2951.5001.8136 -0.4074 1.5001.8606 -0.52 1.5001.9071 -0.6328 1.5001.9531 -0.7458 1.5001.9987 -0.8591.5002.0439 -0.9723 1.5002.0887 -1.0858 1.5002.1331 -1.1995 1.5002.1773 -1.3132 1.5002.2212 -1.4271 1.5002.2648 -1.5411.5002.3082 -1.6551 1.5002.3515 -1.7692 1.5002.3941 -1.8835 1.5002.4359 -1.9982 1.5002.4794 -2.1122 1.5002.5139 -2.2283 1.5002.4439 -2.3271 2.0002.3286 -2.3098 2.0002.2633 -2.2059 2.0002.2048 -2.0972 2.0002.1445 -1.9895 2.0002.0836 -1.8822 2.0002.0215 -1.7756 2.0001.958-1.6698 2.0001.8928 -1.5652.0001.8261 -1.4612 2.0001.7577 -1.3584 2.0001.6876 -1.2569 2.0001.6156 -1.1567 2.0001.5418 -1.0578 2.0001.4659 -0.9605 2.0001.388-0.8648 2.0001.308-0.7708 2.0001.2258 -0.6788 2.0001.1412 -0.5892.0001.0542 -0.5015 2.000
XY Z0.9646 -0.41662.0000.8725 -0.33452.0000.7776 -0.25562.0000.6799 -0.18022.0000.5794 -0.10862.0000.4759 -0.04152.0000.3694 0.0208 2.0000.2599 0.0777 2.0000.1476 0.1288 2.0000.0325 0.1732 2.000-0.0852 0.2104 2.000-0.205 0.2397 2.000-0.3266 0.2605 2.000-0.4494 0.2724 2.000-0.5728 0.2751 2.000-0.696 0.2689 2.000-0.8185 0.2542 2.000-0.9398 0.2317 2.000-1.0597 0.2024 2.000-1.1782 0.1679 2.000-1.2957 0.1302 2.000-1.4127 0.0912 2.000-1.5303 0.0537 2.000-1.6495 0.022 2.000-1.7714 0.0032 2.000-1.8945 0.0071 2.000-2.0123 0.0424 2.000-2.1173 0.1068 2.000-2.2054 0.1927 2.000-2.2627 0.3014 2.000-2.2866 0.4221 2.000-2.2873 0.5454 2.000-2.2717 0.6678 2.000-2.2438 0.7879 2.000-2.2058 0.9053 2.000-2.1596 1.0197 2.000-2.1062 1.131 2.000-2.0467 1.239 2.000-1.9814 1.3437 2.000-1.9108 1.445 2.000-1.8353 1.5425 2.000-1.755 1.6362 2.000-1.671.7257 2.000-1.5805 1.8105 2.000-1.4864 1.8904 2.000-1.3879 1.9647 2.000
X Y Z-1.2852 2.03312.000-1.1785 2.095 2.000-1.0679 2.14972.000-0.9537 2.19642.000-0.8363 2.23422.000-0.7161 2.26212.000-0.5939 2.27922.000-0.4707 2.285 2.000-0.3475 2.279 2.000-0.2255 2.26092.000-0.1059 2.23072.0000.01032.18932.0000.12232.13762.0000.22942.07642.0000.33122.00672.0000.42781.92992.0000.51951.84732.0000.60661.76 2.0000.68941.66842.0000.76811.57342.0000.843 1.47532.0000.91451.37482.0000.983 1.27222.0001.04891.16782.0001.11231.062 2.0001.17370.95492.0001.23330.84682.0001.291 0.73782.0001.34720.62792.0001.402 0.51742.0001.45560.40622.0001.50810.29452.0001.55960.18232.0001.61020.06982.0001.66 -0.0431 2.0001.7091-0.1563 2.0001.7575-0.2698 2.0001.8053-0.3836 2.0001.8525-0.4976 2.0001.8992-0.6119 2.0001.9454-0.7263 2.0001.9911-0.8409 2.0002.0365-0.9557 2.0002.0814-1.0706 2.0002.126 -1.1857 2.0002.1702-1.3009 2.000
XYZ2.2141 -1.4162 2.0002.2577 -1.5317 2.0002.301-1.6472 2.0002.3441 -1.7629 2.0002.3867 -1.8787 2.0002.4283 -1.9948 2.0002.4715 -2.1104 2.0002.5062 -2.228 2.0002.4361 -2.3278 2.5002.3199 -2.3093 2.5002.255-2.2037 2.5002.1966 -2.0937 2.5002.1366 -1.9845 2.5002.0759 -1.8757 2.5002.0141 -1.7675 2.5001.951-1.6601 2.5001.8864 -1.5536 2.5001.8202 -1.4481 2.5001.7523 -1.3436 2.5001.6827 -1.2403 2.5001.6112 -1.1382 2.5001.5379 -1.0375 2.5001.4627 -0.9382 2.5001.3855 -0.8404 2.5001.3062 -0.7443 2.5001.2248 -0.652.5001.1411 -0.5577 2.5001.055-0.4677 2.5000.9664 -0.3801 2.5000.8752 -0.2952 2.5000.7814 -0.2132 2.5000.6849 -0.1345 2.5000.5854 -0.0595 2.5000.4829 0.0113 2.5000.3772 0.0772 2.5000.2684 0.1379 2.5000.1565 0.1926 2.5000.0415 0.2406 2.500-0.0763 0.2812.500-0.1967 0.3132.500-0.3191 0.3361 2.500-0.4429 0.3496 2.500-0.5674 0.3532.500-0.6918 0.3464 2.500-0.8153 0.3304 2.500-0.9374 0.3056 2.500
X Y Z-1.0577 0.27332.500-1.1763 0.23522.500-1.2937 0.19342.500-1.4104 0.14992.500-1.5276 0.10772.500-1.6466 0.07072.500-1.7686 0.04612.500-1.8929 0.04362.500-2.0135 0.07322.500-2.1217 0.13442.500-2.2128 0.21872.500-2.2707 0.32832.500-2.2949 0.45022.500-2.2960.57472.500-2.2814 0.69842.500-2.2548 0.82 2.500-2.2183 0.93912.500-2.1734 1.05532.500-2.1213 1.16842.500-2.0629 1.27852.500-1.9987 1.38522.500-1.9291 1.48862.500-1.8543 1.58822.500-1.7746 1.68392.500-1.6901 1.77542.500-1.6008 1.86232.500-1.5069 1.94422.500-1.4084 2.02042.500-1.3055 2.09052.500-1.1982 2.15392.500-1.0872.21 2.500-0.9722.25782.500-0.8536 2.29652.500-0.7324 2.32492.500-0.6092.34222.500-0.4846 2.34772.500-0.3602 2.34112.500-0.2372 2.322 2.500-0.1167 2.29062.5000.00022.24772.5000.11282.19432.5000.22022.13132.5000.32212.05972.5000.41881.98112.5000.51041.89672.5000.59741.80762.500
X Y Z0.68 1.71432.5000.75851.61762.5000.83321.51792.5000.90451.41572.5000.97281.31152.5001.03831.20562.5001.10161.09832.5001.16290.98982.5001.22230.88032.5001.28 0.76992.5001.33630.65872.5001.39110.54682.5001.44470.43442.5001.49720.32142.5001.54890.208 2.5001.59970.09432.5001.6497-0.0198 2.5001.699 -0.1342 2.5001.7476-0.2489 2.5001.7956-0.3639 2.5001.843 -0.4791 2.5001.8899-0.5945 2.5001.9364-0.7101 2.5001.9824-0.8259 2.5002.0279-0.9419 2.5002.0731-1.0582.5002.1178-1.1743 2.5002.1622-1.2907 2.5002.2062-1.4072 2.5002.2499-1.5239 2.5002.2933-1.0407 2.5002.3363-1.7576 2.5002.3791-1.8746 2.5002.4207-1.9921 2.5002.4637-2.1092.5002.4986-2.2278 2.5002.4279-2.3285 3.0002.311 -2.3093.0002.2463-2.2022 3.0002.1878-2.0911 3.0002.1279-1.9807 3.0002.0673-1.8707 3.0002.0058-1.7613 3.0001.943 -1.6526 3.0001.8788-1.5447 3.0001.813 -1.4377 3.000
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X Y Z0.42850.26376.0000.32920.34316.0000.22620.41776.0000.11960.48696.0000.009 0.54976.000-0.1053 0.60536.000-0.2232 0.65286.000-0.3444 0.69136.000-0.4682 0.72 6.000-0.5941 0.738 6.000-0.7210.74526.000-0.8481 0.742 6.000-0.9745 0.72926.000-1.0998 0.70736.000-1.2234 0.67776.000-1.3454 0.64186.000-1.4659 0.60126.000-1.5854 0.55786.000-1.7049 0.51436.000-1.8255 0.47426.000-1.9486 0.44246.000-2.0749 0.42976.000-2.1983 0.45646.000-2.2983 0.53326.000-2.3517 0.647 6.000-2.3629 0.77356.000-2.3563 0.90046.000-2.3376 1.02626.000-2.3099 1.15036.000-2.2746 1.27246.000-2.2321 1.39226.000-2.1829 1.50956.000-2.1276 1.62396.000-2.0661 1.73526.000-1.9985 1.84296.000-1.9248 1.94656.000-1.8448 2.04536.000-1.7584 2.13866.000-1.6656 2.22556.000-1.5664 2.305 6.000-1.4612 2.37636.000-1.35 2.438 6.000-1.2336 2.48886.000-1.1125 2.52766.000-0.9882.55336.000-0.8615 2.56556.000
XY Z-0.7345 2.56386.000-0.6083 2.54826.000-0.4844 2.51986.000-0.3638 2.47976.000-0.2473 2.42886.000-0.1356 2.36816.000-0.0288 2.29926.0000.0731 2.22326.0000.1702 2.14116.0000.2626 2.05386.0000.3507 1.96216.0000.4351.86696.0000.5157 1.76876.0000.5933 1.66796.0000.6678 1.56496.0000.7395 1.45996.0000.8086 1.35326.0000.8755 1.245 6.0000.9404 1.13566.0001.0035 1.02536.0001.0650.914 6.0001.1250.80186.0001.1836 0.689 6.0001.2410.57556.0001.2972 0.46156.0001.3525 0.347 6.0001.4068 0.232 6.0001.4604 0.11676.0001.5133 0.00116.0001.5655 -0.1149 6.0001.617-0.2311 6.0001.6681 -0.3476 6.0001.7186 -0.4643 6.0001.7688 -0.5811 6.0001.8185 -0.6981 6.0001.8679 -0.8153 6.0001.917-0.9326 6.0001.9658 -1.05 6.0002.0144 -1.1675 6.0002.0627 -1.2852 6.0002.1108 -1.4029 6.0002.1588 -1.5206 6.0002.2066 -1.6384 6.0002.2542 -1.7563 6.0002.3017 -1.8743 6.0002.3483 -1.9926 6.000
X Y Z2.3961-2.11046.0002.4364-2.23036.0002.3687-2.33556.5002.25 -2.31866.5002.1819-2.21246.5002.1196-2.102 6.5002.0564-1.992 6.5001.9932-1.88216.5001.9297-1.77236.5001.8658-1.66286.5001.8013-1.55356.5001.7362-1.44486.5001.6702-1.33656.5001.6033-1.22876.5001.5355-1.12166.5001.4666-1.01516.5001.3965-0.90946.5001.3252-0.80456.5001.2526-0.70066.5001.1786-0.59766.5001.1029-0.49586.5001.0256-0.39546.5000.9463-0.29646.5000.865 -0.199 6.5000.7815-0.10366.5000.6958-0.01016.5000.60760.081 6.5000.51670.1694 6.5000.42280.2547 6.5000.32580.3363 6.5000.22540.4138 6.5000.12150.4865 6.5000.014 0.5537 6.500-0.0972 0.6147 6.500-0.2120.6685 6.500-0.3302 0.7141 6.500-0.4516 0.7508 6.500-0.5755 0.7775 6.500-0.7013 0.7938 6.500-0.8279 0.7996 6.500-0.9546 0.7953 6.500-1.0806 0.7812 6.500-1.2053 0.7583 6.500-1.3284 0.7278 6.500-1.4498 0.6911 6.500-1.5697 0.6497 6.500
X Y Z-1.6889 0.60666.500-1.8085 0.56446.500-1.9295 0.52646.500-2.0538 0.50216.500-2.1796 0.51 6.500-2.2886 0.57216.500-2.3525 0.67996.500-2.3661 0.80566.500-2.3589 0.93226.500-2.3404 1.05766.500-2.3126 1.18136.500-2.2768 1.303 6.500-2.2343 1.42246.500-2.1856 1.53956.500-2.1311.654 6.500-2.0705 1.76546.500-2.0039 1.87336.500-1.9313 1.97726.500-1.8523 2.07646.500-1.7672.17026.500-1.6752.25746.500-1.5764 2.33716.500-1.4712 2.40796.500-1.3599 2.46866.500-1.2429 2.51736.500-1.1212 2.55266.500-0.9962 2.57386.500-0.8697 2.58096.500-0.7431 2.57376.500-0.6182 2.55236.500-0.4962 2.518 6.500-0.3779 2.47246.500-0.2642.41676.500-0.1548 2.35226.500-0.0505 2.28026.5000.04912.20176.5000.14432.118 6.5000.23532.02966.5000.32231.93746.5000.40581.842 6.5000.486 1.74376.5000.56321.64316.5000.63751.54036.5000.70911.43576.5000.77841.32956.5000.84551.22196.500
XY Z0.9106 1.11316.5000.9741 1.00336.5001.0361 0.89276.5001.0967 0.78136.5001.1560.66926.5001.2141 0.55656.5001.2712 0.44326.5001.3274 0.32956.5001.3827 0.21546.5001.4373 0.10096.5001.4912 -0.0138 6.5001.5444 -0.1289 6.5001.5971 -0.2443 6.5001.6492 -0.3599 6.5001.7008 -0.4758 6.5001.7518 -0.5918 6.5001.8025 -0.7081 6.5001.8527 -0.8245 6.5001.9026 -0.9411 6.5001.9522 -1.0578 6.5002.0016 -1.1746 6.5002.0508 -1.2915 6.5002.0999 -1.4085 6.5002.1488 -1.5256.5002.1976 -1.6426.5002.2459 -1.7598 6.5002.2932 -1.8776.5002.3396 -1.9954 6.5002.3882 -2.1126 6.5002.4288 -2.2319 6.500還應(yīng)知道，表1中所公開的翼面可按幾何比例放大或縮小以用于其他類似的渦輪設(shè)計(jì)。因此，在表1中所給出的坐標(biāo)值可以按比例放大或縮小而使得翼面斷面形狀保持不變。表1中的坐標(biāo)的按比例改變的模型用X，Y，Z值乘以或除以同一常數(shù)或數(shù)字來表達(dá)。
現(xiàn)在參看圖8，表示了一個(gè)渦輪，其中可采用被限定的渦輪葉片翼面。在所顯示的渦輪中，渦輪轉(zhuǎn)子，標(biāo)號(hào)為40，包括安裝了葉片的轉(zhuǎn)子葉輪42，而這葉片與定子葉片柵一起，形成了轉(zhuǎn)子的各個(gè)級(jí)。尤其是，第1級(jí)46包括一個(gè)第1級(jí)轉(zhuǎn)子葉輪44，在它上面的葉片17具有翼面10，葉片17與第1級(jí)定子葉片48對(duì)置。還應(yīng)知道若干翼面10是在第1級(jí)葉輪44的圓周上間隔排列的，因此在這情況下，在第1級(jí)葉輪44上安裝了60個(gè)葉片。
雖然已結(jié)合目前認(rèn)為是最實(shí)際和優(yōu)選的實(shí)施例說明了本發(fā)明，應(yīng)該認(rèn)識(shí)到，本發(fā)明并不限制于所公開的實(shí)施例，而相反，本發(fā)明要覆蓋在所附權(quán)利要求書的精神與范圍內(nèi)所包含的各種改進(jìn)和等同的結(jié)構(gòu)。
權(quán)利要求
1.一種具有葉片翼面(10)的渦輪葉片(17)，該翼面(10)為一個(gè)沿垂直于任何翼面表面位置方向處在離該表面±0.100英寸內(nèi)的包絡(luò)面，其中翼面(10)具有一個(gè)不含涂層的名義輪廓該名義輪廓，實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。
2.一個(gè)具有不含涂層的名義翼面輪廓(10)的渦輪葉片(17)，該翼面輪廓(10)實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于渦輪中心線的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。X，Y和Z值可作為相一常數(shù)或數(shù)字的函數(shù)被改變比例，以產(chǎn)生按比例放大或縮小的葉片翼面。
3.一種包括一個(gè)具有若干葉片(17)的渦輪葉輪(44)的渦輪，每個(gè)所述葉片的翼面(10)為沿垂直于任何葉片翼面表面位置方向處于±0.100英寸內(nèi)的包絡(luò)面，其中翼面(10)的不含涂層的名義輪廓實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。
4.一種渦輪，這個(gè)葉輪(44)包括一個(gè)具有若干葉片(17)的渦輪葉輪(44)的渦輪，每個(gè)所述葉片的不含涂層的名義翼面輪廓(10)實(shí)際上符合表1所給出的僅取小數(shù)點(diǎn)后三位的X，Y，Z笛卡兒坐標(biāo)值，其中Z是離一個(gè)垂直于從渦輪中心線出發(fā)的半徑并且包含X，Y值的平面的垂直距離，而Z值則是以在該翼面的徑向最內(nèi)端空氣動(dòng)力學(xué)斷面處的X，Y平面上的零點(diǎn)為其始點(diǎn)，X，Y是確定在每個(gè)距離Z處的翼面輪廓的坐標(biāo)，在這些Z距離處的輪廓互相平滑地連接起來以構(gòu)成完整的翼面形狀。X，Y，Z值可作為同一常數(shù)或數(shù)字的函數(shù)被改變比例，以產(chǎn)生按比例放大或縮小的葉片翼面。
全文摘要
第1級(jí)葉片(10)具有實(shí)際上符合表1中給出的X，Y，Z笛卡兒坐標(biāo)值的翼面輪廓，其中Z是離垂直于渦輪中心線的一個(gè)半徑并且包含X和Y值的一個(gè)平面的垂直距離，而Z值則以在該翼面的徑向最內(nèi)端的氣動(dòng)力學(xué)斷面的X，Y平面上的零點(diǎn)為其始點(diǎn)，以及X，Y是在每個(gè)距離Z處確定該翼面輪廓的坐標(biāo)值。X，Y，和Z值可作為同一常數(shù)和數(shù)字的函數(shù)被改變比例，以產(chǎn)生按比例放大或縮小的葉片翼面斷面。
文檔編號(hào)F01D5/14GK1630768SQ02817094
公開日2005年6月22日 申請(qǐng)日期2002年7月9日 優(yōu)先權(quán)日2001年7月11日
發(fā)明者R·R·拜, T·D·哈耶斯, P·F·諾爾頓, J·C·謝菲爾, A·C·-P·亞卡拉 申請(qǐng)人:通用電氣公司