Detailed explanation of electric tracing belt

　　With the development of science and technology and the progress of society, electric heat tracing, as an efficient, safe and reliable insulation tool, has been widely used in various fields. The electric tracing belt converts electric energy into heat energy, which provides insulation for pipelines, cables, containers and other facilities and prevents freezing, solidification and deterioration caused by low temperature. This paper will introduce the definition, classification, working principle, application field and future development of electric tracing belt in detail.

　　I. Definition of electric tracing belt

　　Electric heat tracing is a kind of heat tracing and insulation system which uses electric energy to transfer heat energy to the heated object, so as to maintain or raise its temperature. It consists of a core belt, a metal wire, an insulating material, a metal shielding net, an outer sheath and the like. The electric tracing belt has the characteristics of safety, reliability and easy installation, and is widely used in industrial and civil fields.

　　Second, the classification of electric tracing belts

　　According to the different heating elements and principles, electric tracing can be divided into two types: self-limiting temperature electric tracing and constant power electric tracing.

　　1. Self-temperature-limiting electric tracing belt

　　Self-temperature-limiting electric heat tracing belt, also known as self-control electric heat tracing belt, is composed of polymer conductive carbon particles and two parallel buses with insulation layers. It can automatically limit the heating temperature and automatically adjust the output power with the temperature of the heated object. Self-temperature-limiting electric tracing tape can be cut at will or extended in a certain length range, and it is allowed to overlap for many times without worrying about overheating and burning at high temperature. This type of electric tracing tape is suitable for preventing pipeline from freezing, maintaining material fluidity and controlling liquid temperature.

　　2. Constant power electric tracing belt

　　Constant power electric heat tracing can be divided into parallel electric heat tracing and series electric heat tracing. It means that the electric tracing belt generates heat with a constant power after being electrified and does not change with the change of environmental temperature. The on-off of the constant power electric tracing belt is controlled by the temperature controller, which can control the temperature of the medium more accurately. This type of electric heat tracing tape is suitable for temperature control, heat tracing, heat preservation and heating of pipelines, equipment and containers.

　　Third, the working principle of electric tracing belt

　　The working principle of electric tracing belt is to transfer heat energy to the heated object through electric energy. When the electric tracing belt is electrified, the internal heating wire will generate heat, which will be transferred to the heated object through heat transfer, thus raising the temperature of the heated object. The working principle of self-limiting temperature electric tracing tape is that the resistivity of polymer conductive carbon particles has a high positive temperature coefficient, and when the temperature rises, the resistivity increases and the output power decreases; When the temperature decreases, the resistivity decreases and the output power increases. The working principle of constant power electric tracing belt is to generate constant heat through constant current, so as to keep the temperature of the heated object.

　　Fourth, the application field of electric tracing belt

　　Electric heat tracing is widely used in many fields such as industry, civil use and special environment. In the industrial field, electric heat tracing belt is mainly used to prevent pipeline from freezing, maintain material fluidity and control liquid temperature. In the civil field, electric tracing belt is mainly used for home heating and water heater insulation. In the field of special environment, electric heat tracing is mainly used for temperature control, heat tracing, heat preservation and heating of pipelines, equipment and containers in petroleum, chemical industry, electric power, metallurgy, light industry, food, refrigeration, construction, agricultural and sideline products production and processing.

　　V. Future development of electric tracing belt

　　With the development of science and technology and the progress of industry, the technology of electric tracing belt is constantly innovating and upgrading. In the future, the electric heat tracing belt will be further improved and optimized to meet more diversified and complicated heat tracing and insulation requirements. For example, by introducing an intelligent control system, the remote monitoring and automatic adjustment of the electric tracing belt can be realized, and the safety and reliability of the system can be improved. At the same time, with the enhancement of environmental awareness, the energy saving and environmental protection performance of the electric tracing belt will be further improved.

　　In a word, as an efficient, safe and reliable thermal insulation tool, electric tracing tape has been widely used in many fields such as industry, civil use and special environment. By understanding the definition, classification, working principle, application field and future development of electric tracing, we can better understand and use electric tracing, and provide more efficient, safe and economical insulation solutions for the production and operation of enterprises.