Coiled pipe heater is one of the main heat exchangers in chemical works. Replacing coil is related to the definition of the mold diameter and the elimination of the winding stress.
盘管式加热器是化工厂的主要换热设备之一，其盘管的更换主要涉及胎具直径的确定和弯曲应力的消除。
2
Particularly noteworthy is the special design of the coil inside the heater, ensuring thermal expansion with low stress.
另一个值得注意的是此种特殊设计可以确保消除炉内膨胀应力。
3
The paper introduces a coating with high temperature resistance and insulating property for surface insulation process of electric heatercoil of heating coil in automobile cigar lighter.