The system provides hot water through the combination of air source heat pump and gas boiler,aiming to provide hotel group users with domestic hot water above 50℃.The air source heat pump is the main heat source,and the gas boiler is the auxiliary heat source for peak regulation,which is used to ensure enough water supply temperature during the peak water consumption period of hotel group users or in cold weather.The heat source,water pump and electric reg-ulating valve in the system are controlled by PLC,so as to realize the continuous and stable operation of the dual heat source coupling heating system and meet the actual heating demand.The results show that the dual heat source coupling system is more economical than the simple use of gas boiler,and is suitable for popularization and application in cold ar-eas in the north.
PLChot water supplyair source heat pumpdouble heat source