FLUE BOILER Russian patent published in 2005 - IPC

FIELD: generation of hot water; heat power engineering.

SUBSTANCE: proposed boiler includes horizontal cylindrical shell with flame tube located inside it and surrounded with water jacket. Arranged longitudinal in water jacket are rows of fire tubes forming smoke uptake by means of swivel chambers. Secured at ends of fire tube are tube sheets for flame tubes. Central portion of tube sheets is made in form of compensator having form of circular projection embracing the projecting end of fire tube over circumference. Last row of flame tubes may be made in form of smoke uptake located in passage behind body. Rear wall of rear swivel chamber is just water-cooled wall. Stagnant zones of boiler are connected with water jacket by means of pipes increasing the velocity of water motion.

EFFECT: enhanced reliability and economical efficiency.

6 cl, 6 dwg