Electric heating aluminum oxide ceramics heat pipe hot-blast stove

Abstract

Disclosed is an electrothermal alumina ceramic heat tube hot-blast stove; the electric heating tube of the hot-blast stove is an electrothermal alumina ceramic heating plate component inserted on the concave bottom plate of the inner bottom of the heating tube; the heating tube is mounted in the tube plate insertion hole through a clamp ring; when the heating tube is electrified, the electrothermal alumina ceramic heating plate generates heat rapidly to gasify the working fluid and conveys the gasified latent heat to the upper wing plate heating tube; the condensed latent heating air is released under the airflow flushing of a fan; the condensed working fluid returns to the lower part through the gravity for heat absorbing and gasification again; the process cycles and reciprocates; the electrothermal alumina ceramic heat tube hot-blast stove has the advantages of being not influenced by the voltage, high thermal efficiency, long service life and being an electric heating hot-blast stove in the new generation.

Description

technical field [0001] The invention relates to an electrically heated heating air hot-blast stove, in particular to a hot-blast stove using electrothermal alumina ceramic heat pipes. Background technique [0002] Existing electric heating hot blast stoves use bare tubes or electric heating wire tubes around the fins to heat the air in the air duct, the heat exchange efficiency is only 60-70%, and the service life is short; the inventor's built-in cylindrical electric heating wire The high-frequency welded fin heat pipe hot blast stove (patent number ZL200420007866.7) has high heat exchange efficiency, but there is also high-temperature oxidation of the electric heating wire, which affects the service life of the heat pipe, and because the gap between the cylindrical electric heating wire tube and the inner tube wall of the heat pipe Small, easy to dry out the working medium, affecting long-term use. Contents of the invention [0003] In order to solve the defects of the ...

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Problems solved by technology

[0002] Existing electric heating hot blast stoves use bare tubes or electric heating wire tubes around the fins to heat the air in the air duct, the heat exchange efficiency is only 60-70%, and the service life is short; the inventor's built-in cylindrical electric heating wire The high-frequency welded fin heat pipe hot blast stove (patent number ZL200420007866.7) has high heat exchange efficiency, but there is also high-temperature oxidation of the electric heating wire, which affects the service life of the heat pipe. Small, prone to drying up of working fluid, affecting long-term use

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