FIELD: heat supply systems.
SUBSTANCE: heater comprises section made of tubular heat exchanger for heating agent and finings. The section is provided with front, bottom, and top low-temperature sectional shields-circuits and back convective circuits with fining and swirlers. The tubular heat exchanger is provided with vertical plate provided with front and top sectional shields-circuits and back convective circuits. The swirlers are mounted inside the intersection junctions. The section is made of pig iron, steel, aluminum and their alloys, and sectional shields-circuits are made of sheet aluminum or nonmetallic material.
EFFECT: enhanced efficiency.
3 cl, 3 dwg
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