Safety production is the basis of the survival and development of heating enterprises. According to the operation characteristics and technological characteristics of the heating system

this paper uses JHA method to identify the hazard sources in the three key links of the heating system

namely

the heat source（boiler room）

the heat exchange station and the operating nodes of the heating network. The causes and possible consequences of the hazards are analyzed

and the systematic hazards in the heating industry are discussed. The way to identify the risk source is to reduce the risk of safety accidents in heating enterprises. Through identification

the possible hazard sources in each operation link of heating system are determined

the code and name of each hazard source are defined

the possible accidents and injuries caused by each hazard source are pointed out

which provides guidance for the identification of hazard sources in heating enterprises.