Title:
CONTROL DEVICE FOR ONCE-THROUGH BOILER, POWER GENERATION PLANT, AND CONTROL METHOD FOR ONCE-THROUGH BOILER
Document Type and Number:
WIPO Patent Application WO/2021/029312
Kind Code:
A1
Abstract:
The present disclosure relates to a control device for a once-through boiler, which can adjust the steam temperature from a furnace water cooling wall by a plurality of superheaters and a plurality of sprays. The control device performs control such that the temperature reduction amount of the steam by at least some of the plurality of sprays becomes a target temperature reduction amount. A bias value, which is set on the basis of the deviation between a detection value of the steam temperature and a target steam temperature on the upstream side of a spray position of the spray of which the temperature reduction amount in a steam flow path is controlled with respect to a basic target temperature reduction amount, is added to the target temperature reduction amount.
Inventors:
BABA TOSHIHIRO (JP)
DOMOTO KAZUHIRO (JP)
SANDA HISASHI (JP)
DOMOTO KAZUHIRO (JP)
SANDA HISASHI (JP)
Application Number:
PCT/JP2020/030137
Publication Date:
February 18, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
MITSUBISHI POWER LTD (JP)
International Classes:
F22G5/12
Foreign References:
| JP2006125760A | 2006-05-18 | |||
| JPS5840032B2 | 1983-09-02 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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