Since the limit temperature electric tracing band detail electric heating is to use electric heating equipment converts electrical energy into heat energy, by direct or indirect heat exchange, added by heating equipment by the loss of heat insulation materials, and the temperature control is adopted to achieve tracking and control the temperature of the heating equipment within the medium, to maintain in a reasonable and economic level.

In the past, the steam tracing is always a main way of heat preservation. Its working principle is through the steam heating pipe cooling to supplement on the thermal insulation pipe heat loss. Because of steam heat release is not easy to control, its thermal efficiency is always at a low level. In the 1970 s, the us energy industry are put forward electricity heating scheme to replace the steam tracing. In the late 70 s and early 80 s, many industrial sectors, including energy, has been widely promote the electric heat tracing technology, with electric heating instead of steam heating in an all-round way. Electric heat tracing technology development up to now, has expanded from the traditional constant power heating to conductive plastic as the core of the self-control temperature electric heating.

The working principle of

Electric heating after turning on the power supply (note the end line core shall not be connected), the current core by a thread after conduction of PTC material to another wire core to form a loop. Electricity heating warms the conductive material and its resistance increases then, when the temperature of the core zone rose to a certain value, the degree of resistance to almost breaking current, its temperature no longer increases, meanwhile electric heating to the low temperature heating system heat transfer. Electric heating power is mainly controlled by heat transfer process, with the temperature of the heated system automatically adjust the output power, and the traditional constant power heater is without this feature.

Range of application

Electric heat tracing products can be widely used in petroleum, chemical, electric power, medicine, machinery, food, shipbuilding and other industries of the pipeline, pump body, valve, tank pool and tank volume of thermal insulation, antifreeze and condensation prevention, is the infusion pipe, liquid storage tanks maintain process of medium temperature is the most advanced, the most effective method. Electric heat tracing is not only applicable to various places of steam heating, and can solve the problem of steam tracing is difficult to solve, such as: long-distance pipeline heat tracing, narrow space heating; Random appearance of equipment such as pump heating; No steam heat source or heat tracing of pipeline and equipment in remote areas; Plastic and nonmetal pipeline heat tracing, etc.