method and device for use of the remaining sensible and latent heat of a boiler exhaust gas residual heat comprehensive

摘要

The process extracts heat from the exhaust gas of the burner (32) in a mono-dispersed condensate spray heat exchanger (44) for transfer to the hot-water circuit of the boiler (34). The quantity of heat-exchange medium used is more than three times the boiler's hot-water capacity (35). Branches (83,112) of the hot-water circuit pass through a space heater (100) and a continuous-flow tap-water heater (118) to heat-exchange coils (104,156). A branch (110) from the return line to the boiler leads to a mixer (92) ahead of the pump (96) supplying the space heater.