DIRECT LINK CONTROL SYSTEM AMONG A PLURALITY OF HEAT SOURCES OF DISTRICT HEATING

摘要

PURPOSE: A direct link control system among a plurality of heat sources of district heating is provided to prevent the overflow of a heat storage tank and the evaporation of the water of a supply pipe due to difference in available heat of the heat storage tank by head pressure difference of the heat storage tank between heat sources. CONSTITUTION: A direct link control system among a plurality of heat sources of district heating comprises a supply pipe(DH SL), a return pipe(DH RL), a user facility, a first heat source facility(A), and a second heat source facility(B). The user facility receives heating water through the supply pipe and performs heating through heat exchange. The user facility discharges the water cooled by heat exchange to the return pipe. One end of the supply pipe is connected to the upper part of the first heat source facility. The first heat source facility pressurizes the water of a first heat accumulating tank(ST1) before accumulating/radiating heat.