HEAT PIPE-AND-FIRE TUBE BOILER Russian patent published in 2006 - IPC F22B7/12 

FIELD: heat-and-power engineering; production of heat pipe-and-fire tube boilers.

SUBSTANCE: the invention is intended for a heating of water and may be used in heat power engineering. The boiler includes a body with covers and connecting pipes for water and the flue gases gas withdrawal, the first run of gases located in the body and made in the form of a fire tube with a gaseous chamber connected to the fire tubes of the second run by a means of a pipe plate, the second gaseous chamber with a pipe plate located on opposite ends of the fire tubes, and the third run of gases made in the form of a rectangular gas flue with mounted in it with the help of supplied with covers and connecting pipes for water feeding and withdrawal pipe grates perpendicularly to the gases movement direction tubes with rectangular, ring-shaped or spiral ribs. The fire tube is located asymmetrically to the boiler body. In the second gaseous chamber in the area of the fire tubes with a clearance to the tube plate and in parallel to it there is a rectangular septum, and the third run of gases is formed by a cover of the body on the side of the second gaseous chamber by the tube plates and the septum. The invention ensures reduction of overall dimensions and metal consumption of the boiler, an increase of intensity and reliability of its operation at simplification of its design and the method of manufacture.

EFFECT: the invention ensures reduction of overall dimensions and metal consumption of the boiler, an increase of intensity and reliability of its operation at simplification of its design and the method of manufacture.

6 cl, 4 dwg