Explosion-proof electric heater

Abstract

The invention provides an explosion-proof electric heater. The explosion-proof electric heater is characterized in that a heating cavity is formed in a container body; a first circular clamping groove of which the radius is matched with that of the container body is formed in the inner side of a container cover; the open end of the container body is clamped in the first circular clamping groove; a second circular clamping groove of which the radius is matched with that of an explosion-proof junction box is formed in the inner side of an explosion-proof cover; the open end of the explosion-proof junction box is clamped in the second circular clamping groove; one end of each sleeve is in seal connection with the container cover; the other end of each sleeve penetrates through the bottom of the explosion-proof junction box and extends into the an explosion-proof cavity; each sleeve is in seal connection with the explosion-proof junction box; a plurality of electric heating elements are arranged in the heating cavity; the quantity of the electric heating elements is consistent with that of the sleeves; and one end of each electric heating element penetrates through the corresponding sleeve, extends into the explosion-proof cavity, and is connected with a corresponding power interface through a corresponding wire. The explosion-proof electric heater provided by the invention is good in sealing property and heating effect, high in heating speed, and stable in heating temperature.

Description

technical field [0001] The invention relates to the technical field of electric heaters, in particular to an explosion-proof electric heater. Background technique [0002] The function of the existing explosion-proof electric heater is to heat fluid media such as hydrogen and oil. Its basic structure is: the container system has an inlet and an outlet, and the outside is covered with thermal insulation materials. The upper end is fixed with an explosion-proof chamber through a set of sleeves. The electric heating device penetrates into the container body from the explosion-proof chamber through the casing. When working, the electric heating device is energized to heat the fluid entering the container body, and then output from the outlet. The explosion-proof electric heater in the prior art has poor sealing performance. As the use time increases, the explosion-proof sealing surface gradually corrodes, and finally water seeps into the explosion-proof chamber, making it unabl...

AI Technical Summary

Problems solved by technology

The explosion-proof electric heater in the prior art has poor sealing performance. As the use time increases, the explosion-proof sealing surface gradually corrodes, and finally water seeps into the explosion-proof chamber, making it unable to meet the explosion-proof requirements. In severe cases, electrical sparks will be generated, damaging The entire electric control system causes losses, and the existing explosion-proof electric heater has poor heating effect on the fluid, and the heating temperature is unstable

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