Dari Electric recommends
Concept and principle of duct heater and gas heater:
Mainly used for heating air in ducts, specifications are divided into low temperature, medium temperature, and high temperature types. Structurally, they share the common feature of using steel plates to support the electric heating tubes to reduce vibration. The junction box is equipped with an over-temperature control device. In terms of control, besides over-temperature protection, an interlock device is installed between the fan and the heater to ensure that the electric heater starts only after the fan starts. A differential pressure device is added before and after the heater to prevent fan failure. The gas pressure heated by the channel heater should generally not exceed 0.3Kg/cm2. If it needs to exceed the above pressure, please choose a circulating electric heater. The maximum heating temperature for low-temperature heaters does not exceed 160°C; for medium-temperature types, it does not exceed 260°C; for high-temperature types, it does not exceed 500°C.
Duct electric heaters are used in industrial ducts, air conditioning ducts, and various industries to increase the output air temperature by heating the air. They are generally inserted horizontally into the duct opening. According to the working temperature of the duct, they are divided into low temperature, medium temperature, and high temperature; according to the air velocity in the duct, they are divided into low wind speed, medium wind speed, and high wind speed.
Note: The above information and technical parameters are compiled and released by Yangzhou Dari Electric Co., Ltd.
