Combustion furnace controller

(19)

(11)

EP 2 273 195 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.05.2014 Bulletin 2014/19

(43)	Date of publication A2:
	12.01.2011 Bulletin 2011/02

(21)	Application number: 10251059.1

(22)	Date of filing: 08.06.2010

(51)

International Patent Classification (IPC):

F23N 5/24^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
	Designated Extension States:
	BA ME RS

(30)

Priority:

09.06.2009 JP 2009138117

(71)	Applicants:
	Azbil Corporation Chiyoda-ku Tokyo 100-6419 (JP) Chugai Ro Co., Ltd. Osaka 541-0046 (JP)

(72)	Inventors:
	Yamada, Akira Tokyo 100-6419 (JP) Kadoya, Satoshi Tokyo 100-6419 (JP) Kumazawa, Yuuichi Tokyo 100-6419 (JP) Morikawa, Katsumi Tokyo 100-6419 (JP) Shirono, Hiroshi Osaka 541-0046 (JP) Zouta, Akio Osaka 541-0046 (JP)

(74)	Representative: Tomlinson, Kerry John
	Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)

(54)	Combustion furnace controller

(57) There is provided a combustion furnace controller. The controller includes: a common control module (14) configured to control an overall operation of a combustion furnace (10) by verifying the state of a first interlock for a safe operation of the combustion furnace and then generating common control signals required for the safe operation of the combustion furnace; and combustion zone control modules (15) each provided for a corresponding one of combustion zones (A,B,C) of the combustion furnace and being configured to control an operation of one or more burners (11) provided in the corresponding combustion zone by verifying the state of a second interlock for a combustion environment in the corresponding combustion zone and a corresponding one of the common control signals, wherein the combustion zone control modules and the common control module are provided in a hierarchical manner.

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