A gasifier with high heat exchange efficiency

Abstract

The utility model discloses a kind of gasifiers of high efficiency heat exchange, it is related to gasifier technical field, comprising: shell, heat exchange cavity is provided in shell, water inlet and water outlet are provided on shell, shunt pipe, gas collecting pipe and several heat exchange pipes are provided in heat exchange cavity, the outside of heat exchange pipe is provided with several fins, the extension direction of fin is identical with the axial direction of heat exchange pipe, the inside of heat exchange pipe is provided with thread, thread spirally extends from one end of heat exchange pipe to the other end of heat exchange pipe;The utility model uses, because the outside of heat exchange pipe is provided with several fins, and thread is provided in heat exchange pipe, the heat exchange area of low-temperature medium is increased, and heat exchange effect is improved;And the outside of heat exchange pipe is sleeved with outer tube, it is counterflow sandwich between outer tube and heat exchange pipe, counterflow sandwich and heat exchange cavity are through, and the direction of high-temperature liquid into counterflow sandwich is opposite with the direction of low-temperature medium into heat exchange pipe, so that high-temperature liquid and low-temperature medium form counterflow heat exchange, and improve heat exchange efficiency.

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