Plate-type Teflon heater manufacturer: Structure of duct heaters

Plate-type Teflon heater manufacturer: Structure of duct heaters

The duct heater is primarily used to heat the air flowing through the duct. It comes in three performance types: low-temperature, medium-temperature, and high-temperature. From a structural standpoint, these heaters share a common feature: they employ electric heating tubes supported by steel plates, which helps reduce vibrations induced on the heating tubes after the fan stops running. Each junction box is equipped with an overtemperature protection device. Currently, the commonly used low-temperature and medium-temperature models have been widely adopted in various types of air conditioners. The low-temperature model can be directly installed inside the duct, while the medium-temperature model can also be installed. As for the high-temperature model, its structure varies depending on the specific design. A 100-mm-thick insulation material is sandwiched between the outer wall of the duct and the heater’s junction box. On the one hand, this insulation reduces heat loss from the entire duct to the surrounding environment; on the other hand, it also helps lower the temperature inside the junction chamber.

Plate-type Teflon heater manufacturer: Structure of duct heaters

1. The air duct heater uses stainless steel heating tubes as the heating element.

2. Use carbon steel or stainless steel materials for the support structure.

Plate-type Teflon heater manufacturer: Product features of duct heaters

1. The electric heating tube uses an externally wound corrugated stainless steel strip, which increases the heat dissipation area and significantly enhances the heat exchange efficiency.

2. The heater features a rational design, low air resistance, uniform heating, and no hot or cold spots.

3. The heater is equipped with a temperature controller and a fuse, which can prevent overheating of the air in the duct and ensure reliable operation even under no-air conditions.

Applications of the air duct heater series: heating air, drying/curing various materials, heat treatment, reheating and dehumidifying, and other similar applications.

Plate-type Teflon heater manufacturer: Technical features of duct heaters.

1. It can heat air to very high temperatures, reaching up to 450 degrees Celsius, while the casing temperature remains only around 50 degrees Celsius.

2. High efficiency, reaching 0.9 or higher.

3. The heating and cooling rates are both relatively high, with rapid and stable adjustments. There is no lag or lead in the controlled air temperature, preventing fluctuations in temperature control—a feature that makes it exceptionally well-suited for automatic temperature regulation.

4. Its excellent mechanical performance is attributable to the specially formulated alloy material used for its heating element. As a result, under the influence of high-pressure air flow, its mechanical properties and strength are superior to those of other heating elements. This gives it a distinct advantage when conducting experiments involving air-heating systems and their associated components that require prolonged, uninterrupted operation.

5. It is robust and durable, with a service life that can last for decades while still complying with operating procedures.

6. Clean air, compact size.

Plate-type Teflon heater manufacturer: Application fields of duct heaters

Air duct heaters are widely used to raise the temperature of an air flow from its initial level to the desired target temperature, with temperatures reaching up to 850°C. This product has been in use domestically for over a decade and boasts numerous advantages, including a compact structure, small size, light weight, ease of operation, high safety and reliability, long service life, excellent energy-saving performance, broad applicability, and simple maintenance. It has found extensive application in fields such as aerospace, weapons manufacturing, chemical industry, and research and production laboratories at universities and other institutions. The product features a simple structure, small size, light weight, ease of operation, high safety and reliability, and outstanding performance. It is particularly well-suited for testing automatic temperature-control systems, high-flow high-temperature integrated systems, and their associated components.

Air electric heaters have a wide range of applications: they can heat any gas, producing dry, water-free hot air that is non-conductive, non-flammable, non-explosive, chemically non-corrosive, pollution-free, safe and reliable, and capable of rapidly heating (and precisely controlling) the heated space.