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. 20, 1993
Filed:
Jun. 18, 1991
Applicant:
Inventors:
Takashi Tsukino, Nagasaki, JP;
Tadashi Gengo, Nagasaki, JP;
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
122 / ; 12223512 ; 12223523 ; 165145 ;
Abstract
In a furnace wall heat-transfer pipe unit in a spiral wound-type boiler, for distributing gas-liquid double layer fluids from lower part spiral pipes to upper vertical pipes, a horizontal pipe is interposed between the spiral pipes and the vertical pipes and extends in a horizontal plane around the furnace wall. The gas-liquid double-layer fluids flow into the vertical pipes via the horizontal pipe extending around the furnace wall from the lower part spiral pipes. Uniform layers of the fluid flow into each vertical pipe so as to minimize an imbalance of fluid temperature at the outlet of the furnace.