LOW TEMPERATURE TYPE HYDROGEN BURNING TURBINE

摘要

PROBLEM TO BE SOLVED: To aim at a reduction in cost upon making the whole constitution compact in size as well as to make improvement in cycle efficiency by bleeding a part of exhaust of a third turbine and installing means cooling a first turbine, in a topping bleed cycle of a hydrogen burning turbine plant. ;SOLUTION: In this hydrogen burning turbine plant equipped with a topping bleed cycle, compressed gas by a compressor 1 is burned and heated in a combustor 2, thereby driving a first turbine 3. At the time, excessive water vapor produced is heated of feedwater in two regenerative heat exchangers 4 and 5, and then the one part is drawn in the compressor 1 again, while the rest has driven a second turbine 6, then it drives a third turbine 8 by way of a steam condenser 7, a feedwater heater 9, both these regenerative heat exchangers 5 and 5. In this case, a newly branch route 16 feeding the first turbine 3 with exhaust of the third turbine 8 is installed there, and every part of the first turbine 3 is cooled by a part of the exhaust, whereby such cooling that has held a drop of efficiency down to the minimum is made achievable.;COPYRIGHT: (C)1998,JPO