SYSTEM FOR RECOVERING HEAT IN A CHP-PLANT

摘要

A system for recovering heat from a combined heat and power plant comprising an internal combustion engine (1) and a heating circuit (60) for heating liquid (L) to circulate, said system comprising: - an exhaust heat exchanger (2) is provided for recovering heat from exhaust gases (10) of the engine (1), - a cooling liquid heat exchanger (3) is provided for re- covering heat from a cooling liquid circuit (30) of the engine (1), - a lubrication oil heat exchanger (4) is provided for re- covering heat from a lubrication oil circuit (40) of the engine (1), - said exhaust heat exchanger (2), cooling liquid heat exchanger (3) and lubrication oil heat exchanger (4) are connected in the heating circuit (60) having also a district heating heat exchanger (5) for providing heat to a district heating consumer network (50), - the cooling liquid heat exchanger (3) and the lubrication oil heat exchanger (4) are connected in a channel (601) parallel to a channel (602) wherein the exhaust heat exchanger (2) is connected, so that the heating liquid (L) flow after the district heating heat exchanger (5) can be divided in said parallel channels (601, 602).