Title:
BOILER COMBUSTION CONTROL SYSTEM AND BOILER COMBUSTION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/212224
Kind Code:
A1
Abstract:
Disclosed is a boiler combustion control system that outputs a fuel correction coefficient for correcting a load demand amount after feedback correction. This system comprises: a fuel correction coefficient computation unit that calculates a fuel correction coefficient on the basis of a ratio between load demand amounts before and after feedback correction, and an initial value and a fine adjustment function that define an initial value of a relationship between the load demand amount and a fuel supply amount; and a reference curve correction unit that outputs a reference curve correction coefficient for correcting the initial value and the fine adjustment function. The reference curve correction unit includes: a deviation determination unit that calculates the deviation between a measured main steam pressure and a setting main steam pressure; a period determination unit that acquires a period related to the fluctuation of the deviation; an amplitude determination unit that acquires amplitude; a reference curve correction coefficient output unit that calculates and outputs the reference curve correction coefficient on the basis of a reference curve correction function; and a reference curve correction determination unit that corrects the reference curve correction function in cases where the combination of the period and the amplitude satisfies a predetermined condition.
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Inventors:
OKAMURA YUJI (JP)
MASUHARA KAZUKI (JP)
TANIGUCHI KAZUNORI (JP)
YAMASHITA TORU (JP)
KASHIMA NOBUHIRO (JP)
NISHIYAMA HIROAKI (JP)
SUTOH KENICHIRO (JP)
MASUHARA KAZUKI (JP)
TANIGUCHI KAZUNORI (JP)
YAMASHITA TORU (JP)
KASHIMA NOBUHIRO (JP)
NISHIYAMA HIROAKI (JP)
SUTOH KENICHIRO (JP)
Application Number:
PCT/JP2018/018877
Publication Date:
November 22, 2018
Filing Date:
May 16, 2018
Export Citation:
Assignee:
NYK TRADING CORP (JP)
IDEMITSU KOSAN CO (JP)
NIPPON YUSEN KK (JP)
IDEMITSU KOSAN CO (JP)
NIPPON YUSEN KK (JP)
International Classes:
F22B35/00
Foreign References:
| JP2006200875A | 2006-08-03 | |||
| JP2013155898A | 2013-08-15 | |||
| JP2013164195A | 2013-08-22 | |||
| JP2013181701A | 2013-09-12 | |||
| JP2014126305A | 2014-07-07 | |||
| JP2008008522A | 2008-01-17 | |||
| JP2002023806A | 2002-01-25 | |||
| JPS54152767A | 1979-12-01 |
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
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