A staggered tube heat exchanger with self-cleaning function

Abstract

This utility model relates to the field of heat exchanger technology, specifically to a staggered-tube heat exchanger with self-cleaning function, comprising a heat exchanger body and a shock tank. The inner wall of the heat exchanger body is fixedly fitted with staggered heat exchange tubes. This utility model, by incorporating an electric actuator, a central tube, a soot blowing pipe, a first nozzle, and a second nozzle, enables the air discharged from the first and second nozzles during the operation of the heat exchanger body to blow away dust adhering to the outer wall of the staggered heat exchange tubes. By replacing traditional steam with pulsed shock waves, the blowing force is more concentrated, more targeted, and has better penetration, resulting in better ash removal. Because air is used instead of steam, costs are significantly reduced. Furthermore, since steam is no longer used, the moisture content in the flue gas is not increased, which has no negative impact on boiler operation and does not damage the heating surface, allowing the staggered heat exchange tubes to perform heat exchange normally.

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