HEATING BOILER Russian patent published in 1998 - IPC

FIELD: heating systems. SUBSTANCE: boiler is provided with horizontal cylindrical shell 2 with branch pipes 3 whose outer diameter is equal to 0.15-0.25 of outer diameter of shell 2 and outer diameter of shell 2 is equal to 0.70-0.95 of outer diameter of casing 1. Branch pipes 3 are mounted in vertical rows; distance rows is equal to 1.0-1.5 of outer diameter of branch pipes 3 proper; subsequent rows are located opposite spaces between branch pipes 3 of previous row at similar distance indicated above. Cavities of branch pipes 3 are connected with jacket in lower and upper parts of boiler. EFFECT: enhanced efficiency. 2 cl, 2 dwg