HEAT STEAM GENERATOR Russian patent published in 2005 - IPC

FIELD: heat power engineering.

SUBSTANCE: invention can be used when necessity arises to get several types of heat carrier simultaneously, namely, hot water, steam and steam-gas-air mixture, at increased pressure relative to pressure of gas and air at inlet of device. Proposed heat steam generator has housing with combustion chamber with gas and air supply branch pipes, mixing chamber with Laval nozzle and rarefying chamber in converging part of de Laval nozzle changing into cylindrical head, all installed in housing coaxially and in series to each other. Water boiler and recuperator with feed water supply and heat carrier outlet branch pipes interconnected by hot water line are arranged in ring space between housing and combustion and rarefying chambers, in series. Manifolds to feed water and collect heat cattier are installed on outer perimeter of housing. According to invention, wall of combustion chamber and housing at outlet of water boiler form ring supersonic nozzle, and air supply branch pipes communicate with ambient atmosphere. Gas supply branch pipe communicates with network gas line. Holes for injection of steam into rarefying chamber are made in form of shaped nozzles pointed to side of nozzle outlet. Water is delivered to cylindrical head of rarefying chamber through nozzle holes.

EFFECT: enlarged operating capabilities.

5 cl, 2 dwg