[發明專利]低壓蒸汽透平的低壓末端葉片無效
| 申請號： | 90102415.5 | 申請日： | 1990-04-27 |
| 公開（公告）號： | CN1046780A | 公開（公告）日： | 1990-11-07 |
| 發明（設計）人： | 阿朔克·T·帕泰爾 | 申請（專利權）人： | 西屋電氣公司 |
| 主分類號： | F01D5/14 | 分類號： | F01D5/14 |
| 代理公司： | 中國國際貿易促進委員會專利代理部 | 代理人： | 鄭中軍 |
| 地址： | 美國賓夕*** | 國省代碼： | 暫無信息 |
| 權利要求書： | 查看更多 | 說明書： | 查看更多 |
| 摘要： | |||
| 搜索關鍵詞： | 低壓 蒸汽 透平 末端 葉片 | ||
1、蒸汽透平的葉片，其特征在于，葉片的形狀是由下面的尺寸確定的：
位置?????????(英寸，自根部起)???0.000?????2.0010????5.0000?????8.0000??????11.0000
寬???????????(英寸)????????????4.25000???3.98599???3.59000????3.19487?????2.80004
弦???????????″????????????4.27696???4.06846???3.80152????3.57532?????3.38230
安裝角???????(度)??????????????5.99407???11.14957??18.87216???26.44029????34.00799
最大厚度?????(英寸)????????????0.49309???0.49336???0.47970?????0.44171????0.36554
最大厚度/弦????????????????????0.11528???0.12127???0.12619?????0.12354????0.10807
出口角???????(度)??????????????37.00990??37.01522??36.77622????36.01430???34.88362
進口金屬角???(度)??????????????44.17650??47.84891???51.44978???55.15249???61.38140
進口傾角?????(度)??????????????11.40081??16.53943???22.84699???25.47453???25.91233
出口金屬角???(度)??????????????36.81575??36.88426???36.67086???35.98107???34.85368
出口傾角?????(度)??????????????-.36321???-.26176????-.21057????-.06632????-.05841
背弧彎曲???????????????????????0.01252???0.00007????0.00007????0.00006????0.00072
面積?????????(平方英寸)????????1.59755???1.46661????1.24542????1.02627????0.75902
位置?????????(英寸，自根部起)??13.0000???15.0000????17.0000?????20.0000????23.5000
寬???????????(英寸)????????????2.53499???2.27502????2.02001????1.63994????1.22000
弦???????????(英寸)????????????3.27467???3.18522????3.11362????3.02030????2.98616
安裝角???????(度)??????????????39.25621??44.50158???49.74360???57.49909???66.50863
最大厚度?????(英寸)????????????0.30734???0.27120????0.25398????0.23791????0.19786
最大厚度/弦????????????????????0.09385???0.08514????0.08157????0.07877????0.06626
出口角???????(度)??????????????33.54951??31.98439???30.03656???26.06724???20.73475
進口金屬角???(度)??????????????68.72656??84.54536???101.66240??131.52230??156.12210
進口傾角?????(度)??????????????24.68350??22.48244???21.19228???17.00538???12.38879
出口金屬角???(度)??????????????33.53928??31.97012???30.03510???26.05414???20.72697
出口傾角?????(度)??????????????-.02031???-.01361????-.00290????-.00751????-.01513
背弧彎曲???????????????????????0.00007???0.00746????0.00002????0.00920????0.00020
面積?????????(平方英寸)????????0.64368???0.54398????0.49239????0.44678????0.38695
位置?????????(厘米，自根部起)??0.000??????5.083?????12.700??????20.320?????27.940
寬???????????(厘米)???????????10.795?????10.124?????9.119??????8.115??????7.112
弦???????????″???????????????????10.863?????10.334?????9.656??????9.081??????8.591
安裝角???????(度)?????????????5.994???????11.150????18.872?????26.440?????34.008
最大厚度?????(厘米)???????????1.252???????1.253?????1.218??????1.122??????0.928
最大厚度/弦???????????????????0.115???????0.121?????0.126??????0.124??????0.108
出口角???????(度)?????????????37.010??????37.015????36.776?????36.014?????34.884
進口金屬角???(度)?????????????44.177??????47.849?????51.450????55.152?????61.381
進口傾角?????(度)?????????????11.401??????16.539?????22.847????25.475?????25.912
出口金屬角???(度)?????????????36.816??????36.884?????36.671????35.981?????34.854
出口傾角?????(度)?????????????-0.363??????-0.262?????-0.211????-0.066?????-0.058
背弧彎曲??????????????????????0.013???????0.000??????0.000?????0.000??????0.001
面積 (厘米2) 10.307 9.462 8.035 6.621 4.897
位置?????????(厘米，自根部起)??33.020??????38.100????43.180?????50.800?????59.690
寬???????????(厘米)???????????6.439???????5.779??????5.131?????4.165??????3.099
弦???????????(厘米)???????????8.318???????8.090??????7.909?????7.672??????7.585
安裝角???????(度)?????????????39.256??????44.502?????49.744????57.499?????66.509
最大厚度?????(厘米)???????????0.781???????0.689??????0.645?????0.604??????0.503
最大厚度/弦???????????????????0.094???????0.085??????0.082?????0.079??????0.066
出口角???????(度)?????????????33.550??????31.984?????30.037????26.067?????20.735
進口金屬角???(度)?????????????68.727??????84.545?????101.662???131.522????156.122
進口傾角?????(度)?????????????24.684??????22.482?????21.192????17.005?????12.389
出口金屬角???(度)?????????????33.539??????31.970?????30.035????26.054?????20.727
出口傾角?????(度)?????????????-0.020??????-0.014?????-0.003????-0.008?????-0.015
背弧彎曲??????????????????????0.000???????0.007?????0.000??????0.009??????0.000
面積 (厘米2) 4.153 3.510 3.177 2.882 2.496
2、按照權利要求1所述的蒸汽透平葉片，其特征在于，多個葉片安排為葉片列的形式，其特點如下：
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