Technical characteristics of air duct electric heaters

Technical characteristics of air duct electric heaters

The air duct electric heater is mainly used for heating the air in the air duct, with specifications divided into three forms: low temperature, medium temperature, and high temperature. The common structural feature is the use of steel plates to support the electric heating tube to reduce its vibration, and the junction box is equipped with an over temperature control device.

Technical features:

1. It can heat the air to a very high temperature, up to 450 ℃, and the shell temperature is only around 50 ℃.

2. High efficiency: up to 0.9 or above.

3. The heating and cooling rate block can reach 10 ℃/S, with fast and stable adjustment. There will be no phenomenon of controlled air temperature leading or lagging, which will cause temperature control drift and uncertainty, making it very suitable for automatic control.

4. Good mechanical performance: Because its heating element is made of specially made alloy material, it has better mechanical performance and strength than any heating element under the impact of high-pressure air flow. This is more advantageous for systems and accessories that require long-term continuous heating of the air.

5. Durable and long-lasting, with a lifespan of several decades, when not in violation of usage regulations.

6. The air is clean, the volume is small, and it is beneficial to the people.

The air duct type electric heater is mainly used for air heating in the air duct. The specifications are divided into three forms: low temperature, medium temperature, and high temperature. The common structural feature is that steel plates are used to support the electric heating tube to reduce its vibration, and the junction box is equipped with an over temperature control device. In addition to being equipped with over temperature protection in terms of control, a 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. A differential pressure device is added before and after the heater to prevent fan failure. The gas pressure heated by the channel heater should generally not exceed 0.3Kg/cm2. If the above pressure needs to be exceeded, please choose a circulating electric heater; The maximum temperature for gas heating in low-temperature heaters shall not exceed 160 ℃; Medium temperature type does not exceed 260 ℃; High temperature type shall not exceed 500 ℃. Air duct electric heaters are used in industrial air ducts, air conditioning ducts, and various industries to heat the air and increase the temperature of the output air. They are usually inserted through the horizontal opening of the air duct. 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 inside the duct, it is divided into low wind speed, medium wind speed, and high wind speed.

Product features:

1. The electric heating tube adopts an externally wound corrugated stainless steel strip, which increases the heat dissipation area and greatly improves the heat exchange efficiency.

2. The heater is designed reasonably, with low wind resistance, uniform heating, and no dead corners at high or low temperatures.

3. Dual protection, good security performance. A temperature controller and fuse are installed on the heater, which can be used to control the air temperature in the air duct to work under extremely mild and no wind conditions, ensuring that there is no risk.

Product application:

Heating air, used for drying/vulcanizing various substances, heat treatment, reheating and dehumidification, and other similar applications.

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