RECUPERATIVE AIR HEATER OF REVOLVING TYPE Russian patent published in 2014 - IPC F23L15/04 

FIELD: ventilation.

SUBSTANCE: air heater includes a housing of cylindrical shape with air inlet and outlet branch pipes, a combustion chamber in the form of a cylindrical shell with a heat exchanger made of tubes installed in headers and located parallel to combustion chamber surface, and a stack. Transverse partitions are installed between the housing and the combustion chamber, an inlet header is connected to the combustion chamber, and an outlet header is located on the opposite side and connected to the stack; turbulisers made in the form of bent bands are installed in heat exchanger tubes, and the outlet header is equipped with a condensate drain branch pipe located inside a condensate warm-up branch pipe connected to an outlet air duct branch pipe with heated air.

EFFECT: improving heating efficiency of heat carrier and operating reliability of an air heater under ambient air low temperature application conditions.

2 cl, 3 dwg