The air duct electric heater is mainly used for air heating in the air duct. The specifications are divided into three types: low temperature, medium temperature and high temperature. The common feature in the structure is the use of steel plates to support the electric heating pipe to reduce the vibration of the electric heating pipe. Equipped with over temperature control device. In addition, in addition to over-temperature protection, an intermodal device is also installed between the "fan" and the "heater" to ensure that the electric heater must be started after the fan is started, and a differential pressure device is added before and after the heater. to prevent fan failure. The duct heater supports the electric heating pipe with steel plate to reduce the vibration of the electric heating pipe when the fan is stopped. Over-temperature control devices are installed in the terminal strip. The low temperature type can be directly installed on the air duct. Because the structure of the medium temperature type and the high temperature type is different, a 100 mm thick insulation material is provided from the outer wall of the channel to the heater wiring, which reduces the external heat dissipation of the entire channel on the one hand. On the other hand, the temperature in the wiring compartment is also reduced.
The air duct type electric heater is used for heating the air in industrial air ducts, air conditioning air ducts and various industries to increase the temperature of the output air. It is generally inserted in the horizontal opening of the air duct. According to the working temperature of the air duct, it is divided into low temperature, medium and high temperature; according to the wind speed in the air duct, it is divided into low wind speed, medium wind speed and high wind speed.
The air duct electric heater is generally used for auxiliary heating of the air supply in the air duct when the central air-conditioning unit is heating, making up for the lack of heating caused by the low ambient temperature, improving the operating efficiency, reducing the workload of the host, and prolonging the use of the host. life. This product can also be used for other types of air heating and drying purposes.