HOT-WATER BOILER Russian patent published in 1995 - IPC

FIELD: heat engineering. SUBSTANCE: hot-water boiler has furnace 2 in the body in the form of water jacket 1. Burner 4 is installed on furnace wall 3. The boiler uses bottom plate 7, fire grate 8. Installed in fire ducts 5 are longitudinal ribs 9 made with fold flanges 10 at the level of inlet sections 11 of ducts 5. The bottom plate is positioned in furnace 2 between burner 4 and fire grate 8, it is made detachable. Water jacket 1 is furnished with shoulders 12 facing ducts 5 forming a knuckle with fold flanges 10 of ribs 9. Fire grate 8 may be built up of central and peripheral parts 13 and 14, the first of them being detachable, and the other is water cooled. Wall 15 of furnace 2 is detachable. EFFECT: enhanced efficiency. 3 cl, 2 dwg