WATER HEATING BOILER Russian patent published in 2006 - IPC F24H1/00 F24H1/12 

FIELD: water heating equipment, particularly heat-and-power engineering.

SUBSTANCE: water heating boiler comprises furnace with side screens made of pipes, lower and upper screens made of pipes, as well as lower and upper horizontal manifolds. Each side screen includes primary and secondary screens. Lower manifold is composed of two lower pipelines having rear ends connected with each other by the first connection pipe. Upper manifold is composed of two upper pipelines having front ends connected with each other by the second connection pipe. The primary side screen is made as a number of straight pipes, which connect each pair of lower and upper pipelines arranged along boiler side. The secondary screen is made as a number of curved pipes installed from the primary screen outside and connecting each pair of lower and upper pipes extending along boiler side. Diameter ratio between secondary screen pipes, primary screen pipes, lower manifold pipes and upper manifold pipes is 1:(2.1÷2.5):(4.7÷5.2):(6.6÷7.0).

EFFECT: reduced metal consumption, increased economy and reliability.

14 cl, 1 dwg