Login| Sign Up| Help| Contact|

Patent Searching and Data


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.

Inventors:
OKAMURA YUJI (JP)
MASUHARA KAZUKI (JP)
TANIGUCHI KAZUNORI (JP)
YAMASHITA TORU (JP)
KASHIMA NOBUHIRO (JP)
NISHIYAMA HIROAKI (JP)
SUTOH KENICHIRO (JP)
Application Number:
JP2018/018877
Publication Date:
November 22, 2018
Filing Date:
May 16, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NYK TRADING CORP (Postcode1056134, JP)
IDEMITSU KOSAN CO (JP)
NIPPON YUSEN KK (Postcode1000005, JP)
International Classes:
F22B35/00
Foreign References:
JP2006200875A2006-08-03
JP2013155898A2013-08-15
JP2013164195A2013-08-22
JP2013181701A2013-09-12
JP2014126305A2014-07-07
JP2008008522A2008-01-17
JP2002023806A2002-01-25
JPS54152767A1979-12-01
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (Postcode1600022, JP)
Download PDF: