Boiler water supplementing system capable of saving resources

The utility model relates to the technical field of waste incineration power generation equipment, in particular to a resource-saving boiler water supplementing system which comprises a water inlet pipe connected with a boiler, a preheating mechanism is arranged on the water inlet pipe, the preheating mechanism comprises a heat exchange box arranged on the water inlet pipe, and the water inlet pipe penetrates through the heat exchange box. An air inlet pipe connected with a turbine is arranged at one end of the heat exchange box, and an air outlet pipe is arranged at the other end of the heatexchange box. The preheating mechanism can achieve comprehensive utilization of resources, and therefore the resources are saved. 本实用新型涉及垃圾焚烧发电设备的技术领域，涉及一种节约资源的锅炉补水系统，其包括与锅炉连接的进水管，所述进水管上设置有预热机构，所述预热机构包括设置在所述进水管上的换热箱，所述进水管穿过所述换热箱；所述换热箱的一端设置有与汽轮机连接的进气管，且另外一端上设置有出气管。本实用新型设置的预热机构能够实现资源的综合利用，从而节约资源。