MODULAR WATER HEATING BOILER Russian patent published in 2006 - IPC F24H1/32 

FIELD: water or air heaters.

SUBSTANCE: boiler comprises shielded furnace chamber and convective chamber that receives convective heating surface made of parallel sections, two water jet ejectors, and top, intermediate, and bottom collectors arranged in pairs, and back and front shield. Each of two side shields has a bank of vertical tubes whose top ends are connected with two intermediate collectors, and bottom ends are connected with the horizontal tubes in pair. The horizontal tubes define the bottom shield and alternatively connected to one of the bottom collectors. Two water-jet ejectors are connected with the common inlet for cold water and with one of bottom collectors to generate repeatable forced water circulation. The convective sections are divided into groups by means of spacers between the tubes to define repeatable central gas duct and two side gas ducts.

EFFECT: enhanced efficiency.

7 dwg