Duct Electric Heater
Duct Electric Heater is mainly used for heating air in ducts. The specifications are divided into three types: low temperature, medium temperature, and high temperature. In terms of structure, 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 addition to over-temperature protection, an interlocking device must be installed between the fan and the heater to ensure that the electric heater starts only after the fan starts. A differential pressure device should be added before and after the heater to prevent fan failure. The gas pressure heated by the duct heater generally should not exceed 10Kg/cm2. If the pressure exceeds the above specifications, please choose a circulating electric heater. The maximum heating temperature for low-temperature heaters does not exceed 160°C; for medium-temperature, it does not exceed 360°C; for high-temperature, it does not exceed 850°C.
Application Fields:
Air Electric Heater is mainly used to heat the required air flow from the initial temperature to the required air temperature, up to 850°C. It has been widely used in aerospace, weapon industry, chemical industry, universities, and many other scientific research and production laboratories. It is especially suitable for automatic temperature control and high-flow high-temperature combined systems and accessory tests. The air electric heater has a wide range of applications: it can heat any gas, producing hot air that is dry, non-conductive, non-flammable, non-explosive, non-corrosive, non-polluting, safe, and reliable. The heated space heats up quickly (controllable).
Technical Features
1. It can heat air to a very high temperature, up to 850°C, while the shell temperature is only about 50°C.
2. High efficiency: up to 0.9 or more.
3. Fast heating and cooling rates, up to 10°C/s, with fast and stable adjustment. There is no leading or lagging phenomenon of the controlled air temperature, which makes temperature control drift-free, very suitable for automatic control.
4. Good mechanical performance: because its heating element is made of special alloy material, under the impact of high-pressure air flow, its mechanical performance and strength are better than any other heating element. This is especially advantageous for systems and accessory tests that require continuous air heating for a long time.
5. Durable and long-lasting, with a service life of up to ten years, provided that operating procedures are followed.
6. Clean air and small size.
7. Multiple types of air electric heaters can be designed according to user needs.
IV. Specifications and Models
Single unit power ranges from 2KW to 10000KW series
