Heating principle of pipe heater

The pipeline heater is divided into two modes: one is to use the flange type tubular electric heating element inside the pipeline heater to heat the heat transfer oil in the jacket of the reactor in the pipeline heater, and transfer the heat energy in the pipeline heater to the chemical raw materials in the reactor inside the pipeline heater.
Another way is to directly insert the tubular electric heating elements in the pipe heater into the reactor in the pipe heater or evenly distribute the electric heating tubes around the wall of the pipe heater. This mode is called internal heating of pipe heater. The internal heating type of pipe heater has the advantages of fast temperature rising and high efficiency.
Another mode of pipe heater is far infrared electric heating device. That is to say, the electric heater in the internal system of the pipeline heater wraps the bottom of the reaction tank and the middle and lower parts of the pipeline heater for heating. The far-infrared electric heating device of the pipeline heater has large heating area of the internal system of the pipeline heater, the temperature rise of the pipeline heater is stable and fast, the heat release of the pipeline heater is uniform, the temperature control of the pipeline heater is convenient, the pipeline heater can be controlled in upper, middle and lower sections, the temperature of the reactor wall of the pipeline heater is easy to control, and the pipeline heater has no side effect on the fuel in the reactor The pipe heater runs without noise and pollution. The service life of the pipe heater is long (more than 30000 hours). The energy saving of the pipe heater is significant (more than 28%).
The pipeline heater is a new generation of reactor heater in the internal system of pipeline heater. The pipeline heater uses electric heating method combined with far infrared technology to evenly distribute heat to the reactor in the pipeline heater. Compared with the original heat transfer oil and steam heating, the production cost of the pipeline heater is reduced by more than 30%; The temperature control system of the pipeline heater uses the silicon controlled in the pipeline heater as the main component, with a computer interface. The pipeline heater uses the computer to analyze and control the temperature difference, which makes the operator of the pipeline heater more relaxed. The far-infrared in the pipeline heater promotes blood circulation, which is beneficial and harmless to the human body. Under the environment of energy saving, emission reduction and environmental protection, the development prospect of pipeline heater is also expanding. Many large chemical units at home and abroad are replacing heat transfer oil and steam heating with far-infrared heating.
The pipeline heater is also a kind of radiation type heater with high efficiency, environmental protection and energy saving. After the pipeline heater is powered on, it can form a very strong broad-spectrum directional radiation in the vertical space of the pipeline heater. The pipeline heater effectively converts the electric energy into the far-infrared radiation energy of the pipeline heater. The pipeline heater directly transfers it to the dried material, and the pipeline heater quickly converts it into molecular heat movement, and the pipeline heater is powered on The heater is dried from the inside to the outside, and the pipe heater achieves the purpose of fast drying and shaping, and achieves the remarkable energy saving effect of the pipe heater. The silicon carbide far-infrared electric heating plate of the pipeline heater uses the silicon carbide plate coated with metal oxide, i.e. far-infrared coating of the pipeline heater, as the radiation element. The heating wire is installed in the element hole (or groove) of the pipeline heater, and thick insulating, fire-resistant and heat-insulating materials are placed at the bottom of the element of the pipeline heater, and then the metal shell of the pipeline heater is installed to install the pipe The terminal of the heater can be electrified. The thermal conductivity of the heater at room temperature is 390.7 mpa-1 000 ℃, and the volume expansion strength of the heater at room temperature is 10.0.75k/2-1 000 ℃.
When the far infrared ray in the pipe heater radiates to an object, the absorption, reflection and transmission of the pipe heater can occur. The material heated and dried by the pipe heater absorbs far-infrared radiation energy at the same time in the inner part of the pipe heater and the surface molecules of the pipe heater at a certain depth. The pipe heater produces self heating effect, which makes the solvent or water molecules in the pipe heater evaporate, and the heating of the pipe heater is uniform, so as to avoid the deformation and qualitative change of the pipe heater due to different degrees of thermal expansion To keep the material appearance, physical and mechanical properties, fastness and color of the pipe heater in good condition. Pipe heaters are widely used in automobile, textile, printing and dyeing, dyestuff, papermaking, bicycle, refrigerator, washing machine, chemical fiber, ceramic, electrostatic spraying, grain, food, pharmaceutical, chemical, tobacco and other industries to achieve the purpose of ultra fast drying of pipe heaters. The pipe heater has the advantages of good radiation effect, remarkable power saving, convenient use and maintenance. The heating of the pipe heater is also especially suitable for large drying rooms, ovens and running water drying channels of leather machinery.

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