Classification of resistance heater-tubular heater
The coaxial heater is the most typical structure of the resistance heater, with the most product categories and the most widely used one. Its application fields include catering equipment, laundry equipment, heating equipment and refrigeration equipment.
The sensor's casing is made of corrosion-resistant stainless steel to ensure that the device can be used continuously and stably. The material of the resistance wire is densely filled between the shell and the resistance wire with FeCrAl or NiCr alloy magnesium oxide powder, which has the function of insulation and resonance. The lead rod connects the resistance wire and the external circuit. ,,, Has good high temperature resistance, mechanical properties and welding performance.
In actual use, duct heaters need to be bent to meet application requirements. Conduit heaters can be divided into two types: air use and liquid use. For catheter heaters used in liquids, the shell of the tube needs to be surface-coated to prevent scale, and a fuse must be installed to ensure the safety of the device.