Title:
STEAM TURBINE PLANT
Document Type and Number:
WIPO Patent Application WO/2018/151259
Kind Code:
A1
Abstract:
A steam turbine plant (10) is provided with a high-pressure gland portion (23), a low-pressure gland portion (43), a gland regulator line (110) and a rotor drive steam supply line (120). The high-pressure gland portion (23) seals a gap at an end portion of a high-pressure turbine rotor by supplying gland steam (Sg) into the gap. The low-pressure gland portion (43) seals a gap at an end portion of a low-pressure turbine rotor by supplying gland steam (Sg) into the gap. The gland regulator line (110) guides the gland steam (Sg) from the high-pressure gland portion (23) to the low-pressure gland portion (43). The rotor drive steam supply line (120) branches from the gland regulator line (110) and supplies part of the gland steam (Sg) to a main steam flow passage inside a low-pressure casing.
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Inventors:
NISHIKAWA TOYOHARU (JP)
TABATA SOICHIRO (JP)
TAKAHASHI TADASHI (JP)
TABATA SOICHIRO (JP)
TAKAHASHI TADASHI (JP)
Application Number:
PCT/JP2018/005510
Publication Date:
August 23, 2018
Filing Date:
February 16, 2018
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D25/24; F01D11/04; F01K7/18; F16J15/447
Foreign References:
| JPS4854302A | 1973-07-31 | |||
| JP2015145645A | 2015-08-13 | |||
| JP2013053569A | 2013-03-21 | |||
| JP2004143962A | 2004-05-20 | |||
| JPH0171102U | 1989-05-12 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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