Energy saving measures of air duct heater

The energy-saving device used to preheat materials can safely realize the direct heating of materials in front of the material equipment and the function of circulating heating under high temperature to achieve the purpose of energy saving. The air duct electric heater is composed of several tubular electric heating elements, simplified characters, heat conducting plates, etc. the tubular electric heating element places the high-temperature and high resistance wire harness in the metal pipe, and densely fills the gap with crystalline magnesium oxide powder with good insulation performance and conductivity. It is a tubular electric heating element and heating tube equipped with a guide device, which can make the heat of the conductive gas and liquid uniform during circulation.

One is to use the flange type tubular electric heating element in the pipe heater to insert the reaction tank sleeve of the pipe heater into the heat conducting oil for heating, and transfer the heat energy of the pipe heater to the reaction kettle in the reactor. Another method is to insert the tubular electric heating element of the pipe heater directly into the reaction kettle of the heater, or to evenly distribute the heat conducting pipe on the wall of the pipe heater. This is the internal heating type of tubular heater. The tubular heating furnace has fast heating and high efficiency.

In order to meet the application requirements of many large-scale units, the power of air type electric heaters is also increasing, some reaching more than 400KW. The more electricity the equipment uses, the more energy it consumes, and the same is true of air electric heating body. The increase of electricity will increase the power consumption and increase the operating cost. Therefore, for air type electric heaters, energy-saving measures are essential.

To achieve this goal as much as possible, the air temperature and air volume of the electric heater must be designed reasonably. Therefore, the power of gas-fired electric furnace depends on the calculation of air volume and temperature rise. If the air and temperature rise meet the requirements, it is not necessary to design excessive air volume and temperature rise. Not only waste, but also make the electric energy of the heater excessively consumed, and the energy consumption increases.