发明名称 |
STEAM-TURBINE POWER PLANT AND STEAM TURBINE |
摘要 |
A steam turbine in which principal components to be exposed to high temperatures are all made of ferritic steel, whereby the temperatures of main steam and reheat steam can be increased to 610 - 660 (.degree.C). The rotor shaft (23 in Fig. 1) of the steam turbine is made of ferritic forged steel whose 100,000-hour creep rupture strength is at least 15 (kg/mm2) at the service temperature of the rotor shaft. Likewise, the casing (18) is made of ferritic cast steel whose 100,000-hour creep rupture strength is at least 10 (kg/mm2). The steam turbine of high thermal efficiency can be applied to a steamturbine power plant.
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申请公布号 |
CA2142924(A1) |
申请公布日期 |
1995.08.23 |
申请号 |
CA19952142924 |
申请日期 |
1995.02.20 |
申请人 |
HITACHI, LTD. |
发明人 |
SHIGA, MASAO;HIRAGA, RYO;ONODA, TAKESHI;SHIMIZU, NOBUO;YAMADA, NORIO;KURIYAMA, MITSUO;HIDAKA, KISHIO;NAKAMURA, SHIGEYOSHI;FUKUI, YUTAKA;FUJITA, TOSHIO |
分类号 |
F01D5/02;B23K35/00;B23K35/30;C21D9/38;C22C38/00;F01D5/14;F01D5/28;F01D5/30;F01D25/00;F01K7/22;(IPC1-7):F01D5/28;F01K7/00;F01D3/02 |
主分类号 |
F01D5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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