Air finned heater pressure loss
The Air finned heater is mainly used to heat the required air flow from the initial temperature to the required air temperature, up to 850 ℃. It has been widely used in many scientific research and production laboratories such as aerospace, weapon industry, chemical industry and universities. Especially suitable for automatic temperature control and large flow high temperature combined system and accessory test. The range of air electric heaters is wide: any gas can be heated, and the generated hot air is dry without moisture, non-conductive, non-flammable, non-explosive, non-chemically corrosive, non-polluting, safe and reliable, and the heated space heats up quickly ( Controllable).
In recent years, the power of air heaters has gradually increased, and the energy-saving effect is obvious, some up to 400KW. Air heaters have been gradually and widely used in various occasions. Although the temperature continues to increase, the application of air heaters in certain industries is still increasing. Some users have told us that the heater will produce during the application process. Vibration, resulting in damage to the air heater. We should all know that vibration will increase the wear of the air heater pipes and baffles, resulting in damage to the air heater.
We can change the impact of vibration on the Air finned heater by the following methods:
1. Reducing the flow velocity can be achieved by increasing the distance between the tubes.
2. Increasing the wall thickness is also a measure to improve the vibration of the Air finned heater. This method is basically to change the natural frequency of the air heater pipe, thereby reducing the resonance caused by the vibration. We can also change the diameter of the pipe and other methods To change.
So how to reduce the pressure loss of the Air finned heater itself?
1. The air temperature of the air heater is increased and the design is reasonable.
2. Reduce the pressure loss of the air heater itself. The air that needs to be heated flows through the air heater, resulting in pressure loss. The greater the pressure loss, the greater the energy consumption of the fan. Innovation, from the structural improvement of the air heater itself, to minimize pressure loss.
3. An Air finned heater should be added to the surface of the insulating layer. In the use of Air finned heaters, the insulation is only at the outlet pipe of the electric heater, and the heater surface itself does not have any heat treatment. Comparative data shows that increasing the insulation layer can reduce the energy consumption by 5% to 10%. It is very important to save energy consumption for long-term operation on the surface of the air heater. At the same time, the insulation layer should be installed in the pipeline, and the insulation layer should be installed in the air heater.
