Low temperature type can be directly installed on the air duct, while medium temperature and high temperature types have different structures

Low temperature type can be directly installed on the air duct, while medium temperature and high temperature types have different structures

Three methods of using steel plates to support the electric heating tube are used to reduce the vibration of the electric heating tube when the fan stops, and an over temperature control device is also installed in the junction box. In terms of control, in addition to installing over temperature protection, intermodal equipment is also installed between the fan and heater to ensure that a pressure difference device is added before and after the electric heater is started by the fan to prevent fan failure.

The low-temperature type can be directly installed on the air duct, while the medium temperature and high-temperature types have 100mm thick insulation material sandwiched from the outer wall of the channel to the heater junction box due to their different structures, mainly to reduce the external heat dissipation of the entire channel and the temperature inside the wiring chamber. Generally speaking, the gas pressure heated by the channel heater should not exceed 0.3kg/cm2. If you need to exceed the above pressure, please choose a circulating electric heater; The gas heating temperature of the low-temperature heater shall not exceed 160 ℃; Medium temperature not exceeding 260 ℃; High temperature does not exceed 500 ℃.

In terms of use, industrial air ducts use duct electric heaters, and air conditioning ducts and air from various industries are heated by air to increase the output temperature of the air. Generally, the duct is horizontally opened. According to the working temperature of the air duct, it is divided into low temperature, medium temperature, and high temperature; According to the wind speed of the air duct, it is divided into low wind speed, medium wind speed, and high wind speed. The three methods used in industrial production for duct heaters are: high-temperature heating, medium temperature heating, and low-temperature heating, mainly heated by the air in the duct; The control part adopts advanced digital circuits, integrated circuit triggers, high back voltage thyristors, etc. to form an adjustable temperature measurement and constant temperature system, ensuring the normal operation of the electric heater.

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