FIELD: heat power engineering.
SUBSTANCE: heating boiler comprises housing made of a jacket, which is provided with heat agent and with supplying and return pipes that embrace the furnace having fire bars, and labyrinth chimney. The top section of the chimney is made of economizer separated with the baffle and provided with circulation pipe connected with the boiler. The housing is provided with charging, discharging, and access ports, ash dump, and pressurizing system. The return pipe is connected with the bottom section of the economizer and with the bottom section of the boiler through the gate. The circulation pipe connects the top section of the economizer with the bottom section of the boiler. The supplying pipe is connected with the top section of the boiler and with the top section of the economizer through the gate.
EFFECT: improved design.
5 cl, 3 dwg
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