The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
Jul. 03, 1997
Ryoichi Tanaka, Tokyo, JP;
Mamoru Matsuo, Zama, JP;
Nippon Furnace Kogyo Kaisha, Ltd., Kanagawa-ken, JP;
Abstract
A combustion method in an industrial combustion system is provided, in which a low temperature combustion air to be fed to a combustion zone of the combustion system is preheated through a high-cycle regenerative combustion system. The high-cycle regenerative combustion system includes a pair of regenerators of honeycomb structure having a plurality of fluid passages defined by honeycomb walls thereof. Either of the combustion air and an exhaust gas generated in the combustion zone is adapted to selectively flow through the fluid passages, and the high-cycle regenerative combustion system has a switching cycle time set to be 60 seconds at the longest, so that the regenerator is alternately in heat-transferable contact with the combustion air flow and the exhaust gas flow to perform heat exchange therebetween. The regenerator has a temperature efficiency greater than 0.7 and the combustion air flow is preheated by the exhaust gas through the regenerator in the high temperature efficiency, whereby the combustion air is continuously preheated up to a temperature range above 800.degree. C. The high temperature air flow is continuously introduced into the combustion zone and a combustion fuel is fed to the air flow, so that a combustion reaction is generated and maintained in the combustion zone by the preheated air flow and the combustion fuel.