BRANCH TUBE STOP VALVE UNIT FOR FUEL SLURRY SUPPLY TUBE OF PRESSURIZED FLUIDIZED-BED BOILER

摘要

PROBLEM TO BE SOLVED: To eliminate the residue fuel slurry at the position of a branch tube connected to a slurry supply tube. ;SOLUTION: The branch tube stop valve unit for a fuel slurry supply tube of a pressurized fluidized-bed boiler comprises a slurry passage hole 33 connected at both ends to a slurry supply tube 14 to the boiler opened at a valve housing 32, a valve disc 37 rotatably provided in the housing 32 opposed to the hole 33, and a branch passage 34 communicated with or shut OFF from the hole 33 by the valve disc 37 and opened at the housing 32 and connected with branch tubes 17, 18, 19 at the end, wherein the slurry does not retain between the hole 33 and the valve disc 37.;COPYRIGHT: (C)1997,JPO