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:
Mar. 26, 2013
Filed:
Jun. 19, 2008
Tomoyuki Mikuriya, Kanagawa, JP;
Toshiaki Yoshioka, Kanagawa, JP;
Ryoichi Kawabata, Kanagawa, JP;
Eiji Watanabe, Kanagawa, JP;
Nobuhiro Onda, Kanagawa, JP;
Takeo Nikkuni, Kanagawa, JP;
Shuhei Wakamatsu, Kanagawa, JP;
Susumu Mochida, Kanagawa, JP;
Tadahiro Araake, Kanagawa, JP;
Hiroyuki Nakamura, Kanagawa, JP;
Tomoyuki Mikuriya, Kanagawa, JP;
Toshiaki Yoshioka, Kanagawa, JP;
Ryoichi Kawabata, Kanagawa, JP;
Eiji Watanabe, Kanagawa, JP;
Nobuhiro Onda, Kanagawa, JP;
Takeo Nikkuni, Kanagawa, JP;
Shuhei Wakamatsu, Kanagawa, JP;
Susumu Mochida, Kanagawa, JP;
Tadahiro Araake, Kanagawa, JP;
Hiroyuki Nakamura, Kanagawa, JP;
Chiyoda Corporation, Yokohama-Shi, JP;
Nippon Furnace Co., Ltd., Yokohama-Shi, JP;
Abstract
A combustion air supply apparatusof alternating heat exchange type supplies combustion air and discharges combustion exhaust gas at a flow velocity of 80 to 200 m/sec. A burner assemblyis configured in such a manner that low-caloric fuel gas is pre-heated with heat of pre-combusting high-caloric fuel gas before the low-caloric fuel gas reaches a mixing starting space CA in the combustion chamber where the pre-combusting high-caloric fuel gas and the low-caloric fuel gas come to burn together in a full scale in the mixing starting space CA. When an air amount of the combustion air supplied through the high-temperature air supply ports of the plurality of fuel gas combustion apparatuses is defined as Qand an air amount of the pre-combustion air to be mixed with the high-caloric fuel gas, supplied from the fuel gas combustion apparatuses, is defined as Q, a total air amount (Q+Q) is 1.02 to 1.10 times more than a theoretical air amount QS required for combustion, and a ratio of Q/(Q+Q) is 0.011 to 0.047.