Novel airflow preheating device

Abstract

The invention discloses a novel airflow preheating device, which comprises a heating pipe and a stream guidance pipe, wherein the upper end of an opening at the lower end of the stream guidance pipe is sealed, both the upper end and the lower end of the heating pipe are opened; the stream guidance pipe is nested in the heating pipe; a spiral stream guidance blade is arranged on the outer wall of the stream guidance pipe; an airflow hole is formed in the wall of the lower end of the stream guidance pipe; a ventilation pipe is arranged inside the stream guidance pipe; the ventilation pipe is a hollow pipe which is provided with openings at both ends; the outer diameter of the ventilation pipe is less than the inner diameter of the stream guidance pipe, so that an airflow space is formed between the outer wall of the ventilation pipe and the inner wall of the stream guidance pipe; the maximum outer diameter of the spiral stream guidance blade on the outer wall of the stream guidance pipe is less than or equal to the inner diameter of the heating pipe; the ventilation pipe is supplied with air from lower end; an airflow enters the region between the inner wall of the stream guidance pipe and the outer wall of the ventilation pipe from the top end of the ventilation pipe, then enters a space formed between the outer wall of the stream guidance pipe and the inner wall of the heating pipe through the airflow hole in the wall of the stream guidance pipe and the airflow, guided by the spiral stream guidance blade, flows out from the top end of the stream guidance pipe from bottom to top. The airflow preheating device disclosed by the invention, by virtue of an optimized airflow passage, can avoid easy heating of the outer wall of an electronic cigarette.

Description

technical field [0001] The invention belongs to the technical field of electronic cigarettes, and in particular relates to a novel airflow preheating device. Background technique [0002] In today's society, e-cigarettes have gradually developed as a substitute for traditional cigarettes; e-cigarettes generally use e-liquid as a raw material to atomize and generate smoke, which cannot replace traditional cigarettes in terms of taste; If it cannot be fully smoked, it will produce too many harmful substances. Cigarettes can be fumigated and distilled through the heating device, which can reduce the generation of harmful substances and achieve the effect of smoking real cigarettes. [0003] In the prior art, fumigated cigarettes include an airflow preheating device to heat the incoming airflow for the next step of introducing the hot airflow into the cigarette for distillation. However, due to the unreasonable design of the airflow channel in the existing airflow preheating d...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a new type of airflow preheating device, which aims to solve the problem that the airflow passage of the airflow preheating device in the prior art is unreasonable, resulting in overheating of the outer wall of the electronic cigarette

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