Application and advantages of electric air heater

- Sep 07, 2020-

Application and advantages of electric air heater


Air electric heater is the international popular high quality long life electric heating equipment. It is used for heating, heat preservation and heating of flowing liquid and gas medium by electric air heater. When the heating medium of the electric air heater passes through the heating chamber of the electric heater under the pressure, the huge heat generated in the operation of the electric heating element is uniformly carried away by the principle of fluid thermodynamics, so that the temperature of the heated medium can meet the technological requirements of the user. Its working principle is that the fluid explosion-proof electric heater is a kind of electric energy consumption converted into heat energy, and the air electric heater is used to heat the materials to be heated. In the work, the low-temperature fluid medium enters into its input port under the pressure through the pipeline, along the specific heat exchange channel inside the air electric heating vessel, uses the path designed by the fluid thermodynamics principle of the air electric heater to take away the high-temperature heat energy generated by the electric heating element inside the air heater during the work, so that the temperature of the heating medium of the air electric heater increases, and the electric heater The high temperature medium required by the process is obtained at the outlet. The internal control system of the electric heater automatically adjusts the output power of the electric heater according to the temperature sensor signal of the output port, so that the medium temperature at the output port is uniform; When the heating element of the electric air heater is over temperature, the independent overheating protection device of the heating element of the electric air heater immediately cuts off the heating power supply, so as to avoid coking, deterioration and carbonization caused by the overheating of the heating material, and in serious cases, the heating element of the electric air heater will be burnt out, thus effectively extending the service life of the electric heater.

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Application scope the typical applications of fluid explosion-proof electric heater are as follows:


1. Application of electric air heater in chemical industry, heating of chemical materials, drying of some powder under certain pressure, chemical process and spray drying.


2. Hydrocarbon heating, including crude oil, heavy oil, fuel oil, heat transfer oil, lubricating oil, paraffin, etc


3. Process water, superheated steam, molten salt, nitrogen (air) gas, water gas and other fluids that need to be heated.


4. Due to the advanced explosion-proof structure, the equipment can be widely used in chemical industry, military industry, oil, natural gas, offshore platform, ships, mining areas and other places


Compared with the general heater, the advantages of electric air heater are obvious


1. The field operation box and equipment in the electric air heater are assembled into an integral skid and installed in zone 2. Explosion proof * electric heater: indoor or outdoor installation, non corrosive


2. Zone 2 explosion-proof area air heater function features 1, small size, high power: the air heater mainly uses bundle type tubular electric heating elements.


3. The electric air heater has the advantages of fast thermal response, high temperature control precision and high comprehensive thermal efficiency. The heating temperature of the electric air heater must be high: the maximum working temperature of the heater can reach 850 ℃.


4. The outlet temperature of the medium in the electric air heater is uniform and the temperature control precision is high.


5. Wide application range and strong adaptability: the electric air heater can be used in explosion-proof or ordinary occasions. The explosion-proof grade of the electric air heater can reach D Ⅱ B and C, and the pressure resistance can reach 20 MPa.


6. Long service life and high reliability: the electric air heater is made of special electric heating materials, with low surface power load and multiple protection, which greatly increases the safety and service life of the air heater.


7. Fully automatic control: according to the requirements, through the circuit design of the air heater, it is convenient to realize the automatic control of the outlet temperature, flow, pressure and other parameters of the electric air heater, and can be connected with the computer.


8. The energy-saving effect of the electric air heater is remarkable. Almost 100% of the heat generated by electric energy is transferred to the heating medium of the electric air heater.