BOILER WITH FORCED CIRCULATION Russian patent published in 2020 - IPC F24H1/12 

FIELD: heating equipment.

SUBSTANCE: invention relates to heat engineering and can be used in production of direct-flow steam and hot-water boilers to produce heat and steam. Boiler with forced circulation contains furnace chamber and located behind it convective part made of several parallel arranged two-section packets, each section comprises a pair of adjacent collectors interconnected by U-shaped pipes, distributed along height with a gap relative to each other with possibility of arrangement of U-shaped pipes of one section in the gap of the other section, wherein from below and from above each packet is closed by membrane tubes connected to corresponding section collectors, adjacent collectors of adjacent packs arranged on one side are interconnected by external adapters to form single water path communicated with collector of furnace chamber on one side, and on the other side – with supply main line.

EFFECT: technical result is simplification of boiler manufacturing and assembly with increase of its operation efficiency without increase of power.

1 cl, 13 dwg