Title:
COMBINED CYCLE PLANT, METHOD FOR CONTROLLING SAME, AND DEVICE FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2015/141458
Kind Code:
A1
Abstract:
A first steam turbine (31) and second steam turbine (32) of a combined cycle plant are connected by a reheat steam line (42) via a reheat section (26) of an exhaust heat recovery boiler (20). The reheat steam line (42) and a condenser (36) are connected by a second bypass line (52). A control device (100) has: a determination unit (111) that determines whether or not the flow rate of first steam flowing into the first steam turbine (31) has become a stipulated flow rate; a command output unit (112) that, when the flow rate of the first steam flowing into the first steam turbine has been determined to have become the stipulated flow rate, outputs a closing command indicating moving to a closed state to a regulator valve (71) that is in an open state and is provided to the second bypass line (52); and a threshold alteration unit (114) that, imparting a positive correlation with respect to the temperature of the first steam, alters the threshold for the determination unit determining whether or not the stipulated flow rate has been reached.
Inventors:
MURAKAMI MASAYUKI (JP)
Application Number:
PCT/JP2015/056182
Publication Date:
September 24, 2015
Filing Date:
March 03, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01K23/10; F01D19/00; F01K7/24; F01K13/02
Foreign References:
| JP2013015043A | 2013-01-24 | |||
| JPH0211807A | 1990-01-16 | |||
| JPS6198908A | 1986-05-17 | |||
| JP2013015044A | 2013-01-24 | |||
| JPH06221112A | 1994-08-09 | |||
| JP2013104411A | 2013-05-30 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
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