HOT WATER PREPARATION PLANT Russian patent published in 1997 - IPC

FIELD: industrial and domestic hot water supply systems. SUBSTANCE: plant includes electric pumping unit, jet-type heat generator, control panel, pipe lines with shut-off fittings and expansion tank. Besides that, it is additionally provided with cascade of jet-type heat generators connected in series: with water-jet elevator at inlet and with inter-tube space of heat exchanger at outlet; provision is made for partial extraction of heated water after each stage of cascade effected by waterjet elevator. Inter-tube space of heat exchanger is connected at inlet with outlet of preheated water cascade; outlet of inter-tube space of heat exchanger is connected with suction end of pump of electric pumping plant and expansion tank; tube space of heat exchanger is connected at inlet with cold water supply pipe line and with consumer line at outlet through regulating device. EFFECT: enhanced reliability. 2 cl, 1 dwg