The air duct heater is mainly used for heating the air in the air duct. The specifications are divided into three types: low temperature, medium temperature and high temperature. The common thing in the structure is that the steel plate is used to support the electric heating tube to reduce the vibration of the electric heating tube. Equipped with over-temperature control device. In addition to over-temperature protection in terms of control, 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 must be added before and after the heater to prevent the fan In case of failure, the gas pressure heated by the duct heater should generally not exceed 0.3Kg/cm2. If you need to exceed the above pressure, please use a circulating duct heater; the maximum temperature of the low temperature heater gas heating does not exceed 160℃; medium temperature Type does not exceed 260℃; high temperature type does not exceed 500℃.
2. Application areas:
The duct 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 many scientific research and production laboratories such as aerospace, weapons industry, chemical industry and universities. It is especially suitable for the test of automatic temperature control and large flow high temperature combined system and accessories. The electric air heater has a wide range of use: it can heat any gas, and the hot air produced is dry and moisture-free, non-conductive, non-combustible, non-explosive, non-chemically corrosive, non-polluting, safe and reliable, and the heated space heats up quickly ( Controllable).
3. Technical features:
1. It can heat the air to a very high temperature, up to 450℃, and the shell temperature is only about 50℃. 2. High efficiency: up to 0.9 or more. 3. The heating and cooling rate block can reach 10℃/S, and the adjustment is fast and stable. There will be no leading and lagging phenomenon of the controlled air temperature to make the temperature control drift indefinite, which is very suitable for automatic control. 4. Good mechanical properties: Because its heating element is a special alloy material, it has better mechanical properties and strength than any heating element under the impact of high-pressure air flow. This is suitable for those who need to continuously heat the air for a long time. System and accessory tests are more advantageous. 5. Durable, with a life span of more than ten years under strict compliance with the operating procedures. 6. Clean air is good for environmental protection. 7. According to the actual needs of users, provide design solutions and customize multiple types of air duct heaters.
The power of a single duct heater ranges from 2KW to 2000KW.