COMBUSTION CONTROL METHOD AND DEVICE OF OXYGEN COMBUSTION BOILER

Title:

COMBUSTION CONTROL METHOD AND DEVICE OF OXYGEN COMBUSTION BOILER

Document Type and Number:

WIPO Patent Application WO/2007/061106

Kind Code:

A1

Abstract:

Combustion control method and device of an oxygen combustion boiler capable of controlling combustion constantly and easily by easily being applied to an existing air combustion boiler. Oxygen in a set amount corresponding to a boiler load instruction (35) is supplied to a boiler body (4), a boiler collected heat quantity is measured from the inlet temperature of feed water supplied to the boiler body (4) and the outlet temperature of steam, and the re-circulated flow rate of combustion exhaust gas (14a) is controlled so that a collected heat quantity (41) by the boiler body (4) is equal to a target collected heat quantity (42), whereby an oxygen concentration in the whole gas introduced to the boiler body (4) is regulated.

Inventors:

YAMADA TOSHIHIKO (JP)
FUJIMORI TOSHIRO (JP)
TAKANO SHINICHI (JP)

Application Number:

PCT/JP2006/323652

Publication Date:

May 31, 2007

Filing Date:

November 28, 2006

Export Citation:

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Assignee:

ELECTRIC POWER DEV CO (JP)
ISHIKAWAJIMA HARIMA HEAVY IND (JP)
YAMADA TOSHIHIKO (JP)
FUJIMORI TOSHIRO (JP)
TAKANO SHINICHI (JP)

International Classes:

F22B35/00; F23C99/00; F23N5/00

Foreign References:

JPH07318016A	1995-12-08
JP2001235103A	2001-08-31
JPH1194205A	1999-04-09
JPH08338602A	1996-12-24
JP2003090511A	2003-03-28
JPH05231609A	1993-09-07
EP1435485A1	2004-07-07
JPH10110904A	1998-04-28
JPS62276322A	1987-12-01

Other References: