Energy-saving device for recovering uniformly and utilizing dispersely multiple residue heat resource

The utility model discloses an energy saving device which recycles collectively and reuses dispersedly a plurality of afterheat resources. The utility model is characterized in that the energy saving device comprises a total heat flue which recycles collectively the remaining heat from a plurality of heat consuming device; a remaining heat recycling heat exchanger arranged on the exit end of the total heat flue; a cool flue arranged on the exit end of a remaining heat recycling heat exchanger; and a remaining heat reusing and heat exchanging circulation part which is connected with the remaining heat recycling heat exchanger through a circulating water tube by the circulation way. The utility model can recycle a plurality of remaining heat sources and redistributes the remaining heat collected in accord with the need easily and quickly. Equipments and devices in the utility model are simplified, and the operation and management is convenient. Moreover, the energy saving device works in the status without low temperature corrosion, which extends the service life and reduces the maintenance cost.