Title:
STEAM UTILIZING PLANT, METHOD FOR RUNNING THE PLANT, STEAM FEEDING APPARATUS, AND STEAM FEEDING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/086897
Kind Code:
A1
Abstract:
Disclosed is a thermal power plant comprising a boiler as a steam generating device, a high-pressure turbine, a low-pressure turbine, a condenser, a low-pressure water heater and a steam heat pump device. The steam generated in the boiler is fed to the high-pressure turbine and the low-pressure turbine, and is condensed by the condenser. The feed water discharged from the condenser is heated by the low-pressure water heater with the steam bled from the low-pressure turbine. This fed water is heated by the steam heat pump device disposed downstream, and is fed to the boiler. The steam heat pump device includes a plurality of compressors, and condensers disposed for the individual compressors and having heat transfer tubes therein. The steam bled from the low-pressure turbine is sequentially fed to and compressed by the individual compressors so that the temperature of the steam rises. The steam discharged from the upstream condenser is partially condensed in the condenser with the feed water flowing in the heat transfer tube, and is guided into the downstream compressor. The feed water flowing in the heat transfer tube is heated with the steam.
Inventors:
TAKAHASHI FUMIO (JP)
NAMBA KOJI (JP)
HATAMIYA SHIGEO (JP)
SHIBATA TAKANORI (JP)
NAKANO SUSUMU (JP)
NISHIDA KOJI (JP)
NAMBA KOJI (JP)
HATAMIYA SHIGEO (JP)
SHIBATA TAKANORI (JP)
NAKANO SUSUMU (JP)
NISHIDA KOJI (JP)
Application Number:
PCT/JP2009/000354
Publication Date:
August 05, 2010
Filing Date:
January 30, 2009
Export Citation:
Assignee:
HITACHI LTD (JP)
TAKAHASHI FUMIO (JP)
NAMBA KOJI (JP)
HATAMIYA SHIGEO (JP)
SHIBATA TAKANORI (JP)
NAKANO SUSUMU (JP)
NISHIDA KOJI (JP)
TAKAHASHI FUMIO (JP)
NAMBA KOJI (JP)
HATAMIYA SHIGEO (JP)
SHIBATA TAKANORI (JP)
NAKANO SUSUMU (JP)
NISHIDA KOJI (JP)
International Classes:
F01K7/34; F01K7/38; F01K7/40; F01K7/44; F22D1/32; F22D1/34
Foreign References:
| JPH11173110A | 1999-06-29 | |||
| DE1043348B | 1958-11-13 | |||
| US3842605A | 1974-10-22 | |||
| JPH11173109A | 1999-06-29 | |||
| JPS6350611A | 1988-03-03 | |||
| JPH01123001U | 1989-08-22 |
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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