PROVIDING SYSTEM FOR DISTRICT HEATING USING BIG TEMPERATURE DIFFERENCE

摘要

PURPOSE: A large temperature differential district heating system is provided to use an absorption heat pump, and recover medium-temperature water or steam through the regenerator and evaporator of the heat pump, thereby allowing a supplier to enlarge temperature difference between the supply and recovery of a heat source in order to reduce flow rate. CONSTITUTION: A large temperature differential district heating system includes a district heating heat source pipeline(2), an absorption heat pump(10), and a circulating pipeline(4). The absorption heat pump has an evaporator(12), an absorber(14), a regenerator(16), and a condenser(18) in order to raise the temperature of circulating water using the district heating heat source pipeline. The circulating pipeline circulates the circulating water passing through the absorption heat pump. A heat source is recovered through the regenerator and the evaporator of the absorption heat pump. The circulating water is heated through the absorber and the condenser of the absorption heat pump.