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:
Apr. 07, 2015
Filed:
Oct. 05, 2009
Shinya Hamasaki, Nagasaki, JP;
Toshimi Ohtsuka, Nagasaki, JP;
Yoshinori Koyama, Nagasaki, JP;
Katsuhiko Yokohama, Nagasaki, JP;
Yasunari Shibata, Nagasaki, JP;
Jun Kasai, Nagasaki, JP;
Shinya Hamasaki, Nagasaki, JP;
Toshimi Ohtsuka, Nagasaki, JP;
Yoshinori Koyama, Nagasaki, JP;
Katsuhiko Yokohama, Nagasaki, JP;
Yasunari Shibata, Nagasaki, JP;
Jun Kasai, Nagasaki, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-Shi, JP;
Joban Joint Power Co., Ltd., Tokyo, JP;
Hokkaido Electric Power Company, Incorporated, Sapporo, JP;
Tohoku Electric Power Co., Inc., Sendai, JP;
The Tokyo Electric Power Company, Incorporated, Tokyo, JP;
Chubu Electric Power Co. Inc., Nagoya-Shi, JP;
Hokuriku Electric Power Company, Toyama-Shi, JP;
The Kansai Electric Power Co., Inc., Osaka, JP;
The Chugoku Electric Power Co., Inc., Hiroshima-Shi, JP;
Shikoku Electric Power Co., Inc., Takamatsu-Shi, JP;
Kyushu Electric Power Co., Inc., Fukuoka-Shi, JP;
Electric Power Development Co., Ltd., Tokyo, JP;
Central Research Institute of Electric Power Industry, Tokyo, JP;
Abstract
A leading end located in a two-stage entrained-flow bed coal gasifier has a double-walled structure including an outer cylinder and an inner cylinder, and cooling water for cooling the leading end is supplied through an interior of the inner cylinder to cool the leading end and is then returned to a base end through a space formed between the outer cylinder and the inner cylinder. The space formed between the outer cylinder and the inner cylinder has a smaller channel area than the interior of the inner cylinder, and a swirling flow along a guide formed on an outer circumferential surface of the inner cylinder and a substantially linear flow in a longitudinal direction of the outer cylinder and the inner cylinder are applied to the cooling water returned to the base end through the space formed between the outer cylinder and the inner cylinder.