STEAM GENERATOR Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: furnace chamber 1 of steam generator is separated by pipes 5,6 into a set of sections 3,4 of different width. The width of the first of alternate sections 4 counted from walls of furnace chamber 1 is lesser than the width of the adjacent sections 3. The sections 4 are provided with dummy bottom 8 made of a fire resistance material and inclined at the natural cone angle of the material. The inserts between pipes 5,6 define with gas-dispensing grate 2 and the top part of furnace chamber 1 the bottom and top ports respectively, the total area of the first ports being equal or more than the area of the cross- section of sections 4 having dummy bottom 8. EFFECT: enhanced efficiency. 4 dwg