Air heater is an electric heating device mainly used to heat gas flow. The heating element of the air heater is a stainless steel electric heating tube, and multiple baffles (guide plates) are installed inside the heater cavity to guide the flow of gas and prolong the residence time of gas in the cavity, so as to fully heat the gas, evenly heat the gas, and improve the heat exchange efficiency. The heating element of the air heater, stainless steel heating tube, is made by inserting electric heating wire into seamless steel pipe, filling the gap with magnesium oxide powder with good thermal conductivity and insulation properties, and then shrinking the tube. When current passes through a high-temperature resistance wire, the heat generated diffuses towards the surface of the heating tube through crystalline magnesium oxide powder, and is then transferred to the heated air to achieve the purpose of heating.
Characteristics of explosion-proof heater
To better utilize the function of pipeline heaters, it is necessary to be familiar with these precautions.
Pipeline electric heater is an energy-saving device that heats materials in advance. It is installed before the material equipment to directly heat the materials and circulate them at high temperatures, ultimately achieving the goal of energy conservation. It is widely used in the preheating of fuel oils such as heavy oil, asphalt, and clean oil.
Explosion proof heater manufacturer
The pipeline heater consists of two parts: the main body and the control system. The heating element adopts stainless steel pipe as the protective sleeve, high-temperature resistance alloy wire, crystalline magnesium oxide powder, and is formed by compression process. The control part adopts advanced digital circuits, integrated circuit triggers, high back pressure thyristors, and other components to form an adjustable temperature measurement and constant temperature system, ensuring the normal operation of the electric heater.
There are two modes of pipeline heaters: one is to use the flange type tubular electric heating element inside the pipeline heater to be inserted backwards into the reaction kettle jacket of the pipeline heater to heat the thermal oil, and transfer the thermal energy in the pipeline heater to the chemical raw materials in the reaction kettle inside the pipeline heater. Another way is to directly insert tubular electric heating elements into the reaction kettle of the pipeline heater or evenly distribute electric heating tubes around the wall of the pipeline heater. This mode is called the internal heating type of pipeline heater. The internal heating type of pipeline heater has fast heating and high efficiency.

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