FIELD: instrument making.
SUBSTANCE: heat exchanger is intended for heat transfer from a primary coolant to a secondary liquid coolant inside a body, in the upper part of which one or several burners may be arranged with previous mixing of fuel, at the same time the upper part of the body arranged in the form of an upper perforated element is a wall of a combustion chamber, which is directly cooled by the secondary coolant. Tubes that execute heat exchange are arranged with a four-tab cross section, which is simultaneously in parallel transferred and rotated around the main axis of the heat exchanger and are installed in the upper and lower perforated elements like spikes diverging from each other.
EFFECT: development of a heat exchanger making it possible to manufacture compact boilers, increased reliability and safety of operation.
9 cl, 6 dwg
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RU2173437C2 |
