Anti-corrosion insulating safe liquid heating tube

Abstract

The invention discloses an anti-corrosion insulating safe liquid heating tube, and the heating tube sequentially comprises a ceramic tube, a heating film, an insulating layer and a housing from the inside to the outside. The interior of the ceramic tube is provided with heated liquid. The ceramic tube is provided with a main body part located at the center, and end parts located at two sides. The heating film wraps the external surface of the main body part of the ceramic tube, and the insulating layer wraps the external surface of the heating film. The housing is disposed at the inner sides of the end parts of the ceramic tube. The outer side of one end part of the housing is also connected with a lead outgoing tube, and is also connected with a connector. The heating film is welded with a lead, and the lead is led out of the lead outgoing tube and is connected with a power system and an external control system. The liquid heating tube is also provided with a temperature sensor. The tube is uniform and stable in heating, is stable and reliable in layer distribution, is long in service life, prevents the overheating of the surface of the heating tube from causing the repeated operation of a thermal protector and damaging a product, and can effectively avoid the defects that a common liquid heating tube is not resistant to corrosion and dry burning causes the damages.

Description

technical field [0001] The invention belongs to the field of electric heaters, in particular to a corrosion-resistant insulated safe liquid heating pipe, which is especially suitable for heating corrosive liquids. Background technique [0002] Usually, the surface of the heating film is coated with a layer of insulating material and then sintered on the outer surface of the stainless steel pipe for heating domestic water and drinking water. However, if the heated liquid is a highly corrosive liquid, the stainless steel pipe will be corroded and damaged quickly, and the high temperature generated during the heating process will accelerate this process. [0003] In addition, the heater must not be overheated, as this would lead to potentially serious damage not only to the device or appliance itself on which the heater is provided, but also to the user of the appliance. Usually, in the liquid heating tube, a resettable overheating protector is set. When there is no liquid in ...

AI Technical Summary

Problems solved by technology

However, the bimetal strip usually reacts slowly, and the action deviation is large. Often, the surface temperature is very high when the action is performed. In addition, the overheating protector will automatically resume and restart heating after the action. Repeated heating will cause damage to other components.

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