Title:
BOILER, COMBINED CYCLE PLANT, AND BOILER OPERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/047399
Kind Code:
A1
Abstract:
The purpose of the present invention is to maintain the intake pressure of a water supply pump at an operable pressure. A boiler (1) is provided with: condensate pumps (a condensate pump (18) and an auxiliary condensate pump (19)); a branch line (31) that causes water supplied by the condensate pumps to branch; a drum (a low-pressure drum (11)) that is connected to one direction (a low-pressure branch line (31a)) into which the branch line (31) branches; and a water supply pump (20) that is connected to the other direction (a high-pressure branch line (31b)) into which the branching line (31) branches and that pumps water to an evaporator (a high-pressure evaporator (16)). The boiler (1) is additionally provided with a pressure-applying means that guides a part of the water in the drum to the water supply pump (20) side when the intake pressure of the inlet side of the water supply pump (20) becomes lower than a predetermined pressure.
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Inventors:
TAGUCHI JUN (JP)
Application Number:
PCT/JP2015/074959
Publication Date:
March 31, 2016
Filing Date:
September 02, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F22B1/18; F22D5/36
Foreign References:
| JPS61213401A | 1986-09-22 | |||
| JP2012140910A | 2012-07-26 | |||
| JPH0510501A | 1993-01-19 | |||
| JP2014005955A | 2014-01-16 | |||
| JP2012117517A | 2012-06-21 | |||
| US20140216365A1 | 2014-08-07 | |||
| JPH0399101A | 1991-04-24 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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