Duct Electric HeaterDuct electric heaters are mainly used for heating air in air ducts. They are available in three types: low temperature, medium temperature, and high temperature. Structurally, 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 terms of control, in addition to over-temperature protection, an interlock device is installed between the fan and the heater to ensure that the electric heater starts only after the fan starts. A differential pressure device is added before and after the heater to prevent fan failure. The gas pressure heated by the duct heater generally should not exceed 0.3 Kg/cm2. If it needs to exceed this pressure, please choose a circulating electric heater. The maximum gas heating temperature for low-temperature heaters does not exceed 160°C; for medium-temperature, it does not exceed 260°C; for high-temperature, it does not exceed 500°C.
Duct electric heaters are used in industrial air ducts, air conditioning ducts, and various industries to heat air, thereby increasing the output air temperature. They are generally inserted through a lateral opening in the duct. They are classified by operating temperature into low, medium, and high temperature; and by air velocity in the duct into low, medium, and high velocity.
Duct Electric Heater is used in industrial air ducts, air conditioning ducts, and various industries to heat air, thereby increasing the output air temperature. They are generally inserted through a lateral opening in the duct. They are classified by operating temperature into low, medium, and high temperature; and by air velocity in the duct into low, medium, and high velocity.
Applications:
Used in industrial and mining enterprises, laboratories, research institutions, etc., for drying, baking, wax melting, and sterilization.
Product Features:
Galvanized sheet or mirror stainless steel work chamber, double-layer tempered glass door, safe and convenient to use, novel and beautiful design. Equipped with a microcomputer PID temperature controller with temperature control protection and digital display, with timing function, accurate and reliable temperature control. The air inlet is freely openable and closable. The hot air circulation system consists of a low-noise imported fan and a suitable air duct, ensuring uniform temperature in the work chamber. Independent over-temperature alarm system automatically interrupts when the limit temperature is exceeded, ensuring safe operation without accidents.
Technical Features:
1. Can heat air to very high temperatures, up to 450°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 rapid and stable adjustment. There is no lead or lag in the controlled air temperature, preventing temperature control drift, making it very suitable for automatic control.
4. Good mechanical performance: because the heating element is made of special alloy material, it has better mechanical performance and strength than any other heating element under the impact of high-pressure air flow, which is particularly advantageous for systems and accessory tests that require continuous air heating over long periods.
5. Durable and long-lasting: with strict adherence to operating procedures, the service life can reach over ten years.
6. Clean air, environmentally friendly.
7. According to the actual needs of users, design solutions can be provided, and multiple types of duct heaters can be customized.
