Working principle of electric heater

Electric heater is an internationally popular electric heating equipment. Used to heat the flow of liquid, the heating, heat preservation, and heating of the gas medium. When the heating medium heats the cavity by the electric heater under pressure, the fluid thermodynamic principle is uniformly tapered in the working heat element, so that the temperature of the heated medium reaches the user process. However, what kind of working principle is the electric heater, and below explain the working principle of the tubular electric heater.

There are two cases in the working principle of the tubular electric heater:

The first is to heat before the air is treated with water, generally in the case where the temperature is low in winter. It is often referred to as the first heating or preheating. Its purpose is to improve the enthalpy value of the new wind and reduce humidity, increase the humidification indoor heater capacity of outdoor air in the wastewater chamber to improve the percentage of new winds to meet the requirements of health. The heater used in the tubular electric heater is referred to as a preheater, and its position is disposed at the new wind small chamber outlet. The second is to heat after air is treated, commonly referred to as a second heating or reheat. Its purpose is mainly to compensate for the lack of heat in the workshop. The heater used is referred to as a refolder, typically disposed after the water springs flaps. Although the preheater and the heater is used to heat the air, their role is not exactly the same, and the two are irrelevant and replaced, otherwise the air state of the workshop will change.