HEAT EXCHANGER Russian patent published in 1998 - IPC

FIELD: heat-power engineering; waste-heat boilers. SUBSTANCE: heat exchange members of heat exchanger have at least two breaks over contour at pitch h varying from section to section. Outer heat exchange members of all sections are located on outer surface of housing and inner members are located inside limiting cylindrical ferrule which is made integral for all sections; it forms circular passage together with housing which is brought in communication with supply branch pipe; at inlet of circular passage, above branch pipe, separating device made in form of truncated cone is located; lesser base of this cone is connected with cylindrical ferrule and larger base is mounted at clearance relative to inner surface of housing and is additionally rounded-off inside. Supply branch pipe is mounted tangentially at acute angle of α to vertical axis of heat exchanger, dust removal branch pipe being additionally fitted in its lower portion. Fins are additionally provided at inlet and outlet of circular passage; fins provided at inlet are located above separating device at acute angle and those provided at outlet are parallel to axis of heat exchanger. EFFECT: compact and low-cost construction at high efficiency of heat exchange. 2 cl, 5 dwg