BOILER PLANT WITH A CYLINDRICAL BOILER AND A WATER-HEATER, A WATER-TUBE COUNTERCURRENT CYLINDRICAL BOILER WITH A CONVECTIVE BEAM, A RING-SHAPED SECTIONAL FINNED COLLECTOR Russian patent published in 2005 - IPC

FIELD: heat power engineering.

SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

20 cl, 27 dwg