STEAM GENERATING DEVICE OF BOILER Russian patent published in 1999 - IPC

FIELD: stationary and transportable boiler plants with various heat transfer agents. SUBSTANCE: steam generating device of boiler includes bundle of coaxial pipes with external lifting 2 and internal discharging 11 pipes with dummy extremities. Each pipe is split and parts of pipes 2 and 11 are matched by means of annular groove 8 in extremity of pipe 2 and by means of coupling 6 put on internal protrusion 5 of external pipe 2. Lower extremity of internal pipe 11 is joined with thread 12 to chamber 7 collecting slime that is conjugated with annular groove to lower extremity of external pipe 2. Steam and water mixture is rising with heating in conduit between parts of internal 11 and external 2 pipes, passes through holes 17 of coupling 6 and between part 10 and 1 of pipes and goes to drum. After separation of steam water flows through internal pipe 11 and its holes 13 and runs out into space between parts of pipes 11 and 2 and slime precipitates in space 18 of collecting chamber. EFFECT: increased technological effectiveness of maintenance , repair and manufacture. 1 dwg