Differences and Selection Standards of Industrial Electric Heating Elements in Different Scenarios

Industrial electric heating elements cover diverse varieties such tubular heating tubes, finned heating tubes, single-head heating tubes and cast metal heaters, which can be used for totally different industrial circumstances. Many organizations do not have a clear grasp of the relevant bounds of various heating elements, resulting in blind selection, mismatched equipment parameters, low heating efficiency and frequent malfunctions. Different heating elements have different performance and scenario adaption criteria, and the precise temperature control support of thermocouples can accurately match the most suitable heating solution for industrial production.

Flange type heating tubes are representative of immersion heating tubes, generally utilized for water tanks, boilers and oil tanks and other liquid heating scenarios. Suitable for static and low-flow liquid heating, broad heating area and homogenous heat dispersion. The structure is easy to disassemble and maintain, and the cost performance is outstanding. Matching with ordinary K type thermocouple, can accomplish stable liquid constant temperature control, is the majority choice for industrial liquid heating. And the different materials are selected according to the degree of liquid corrosion and scaling degree, according to diverse water quality and oil quality environment.

The finned heating tubes are intended for air heating and hot air circulation devices. The fin structure increases the heat dissipation area and overcomes the problem of low heat exchange efficiency of air media. It is commonly used in ovens, drying cabinets and hot air heating systems. The surface load is minimal and the heat dissipation is uniform. This can avoid the local high temperature of air heating . It matches with multi point layout thermocouple temperature monitoring system, can realize the uniform temperature heating in the equipment cavity, and assure the uniformity of drying and curing effect of materials.

Single head heating tubes are only for accurate embedded heating such as molds and hot runners. They have small diameter, excellent precision and rapid heat conduction, suitable for the restricted installation space of molds. The dimensional accuracy is rigorously controlled and the heat conduction efficiency is great when matched with thermal grease. Combined with high-sensitivity integrated thermocouples, it can achieve micron-level exact temperature control for molds, fulfill the high-precision processing needs of plastic molding and die-casting products, and significantly reduce the failure rate of products.

Cast aluminum and cast copper heaters are generally used for external heating and heat preservation of pipes and cylindrical equipment. They have strong thermal conductivity and homogeneous overall heating, therefore avoiding the local temperature variation of equipment. They are applicable for the fluid pipeline heat preservation and low temperature heating situations. It can be matched with inlet and outlet thermocouple monitoring, and it can dynamically regulate the heating power according to the fluid flow and temperature changes, and achieve energy-saving and efficient heating effect.

Different heating elements have their own performance benefits and features of situation adaption. Blind universal application will result in waste of resources, and unreliable operation of equipments. According to the equipment structure, heating medium, temperature accuracy requirements and working environment, the professional selection of heating element types and corresponding thermocouple temperature control systems can maximize the equipment operation efficiency. Tailored scenario-based heating solutions assist organizations to control refined thermal production.