RADIATION-CONVECTION HEAT EXCHANGER Russian patent published in 2007 - IPC F23L15/04 

FIELD: heat power engineering.

SUBSTANCE: heat exchanger comprises conical housing provided with branch pipes for supplying and discharging heating fluid and fluid to be heated. The wall of the housing is provided with the passage L-shaped in cross-section and made of a conical spiral. The inner side of the housing is formed by two belt surfaces shaped into conical spirals whose generatrices are parallel to the generatrices of two adjacent heat exchanging spiral surfaces belonging to the L-shaped passage. The heat exchanger is additionally provided with the inner section that is mounted coaxially to the housing and made of finned hollow twisting core shaped into overturned truncated cone, branch pipe for supplying fluid to be heated into its space, and shaped branch pipe that is in communication with the L-shaped passage of the outer heat exchanging section through fittings. The shaped branch pipe is provided with inner spiral fining. The outer spiral fining of the core and shaped branch pipe is made to mate the screw surfaces of the inner shape of the conical housing. The core of the inner section bears on the impeller-shaped structure provided with the impeller load-bearing members whose ends are secured to the walls of the branch pipe for supplying heating fluid to the heat exchanger.

EFFECT: enhanced efficiency.

1 cl, 2 dwg