Air duct heater for heating the factory

Short Description:

This air duct heater is specially designed for factory space heating scenarios, which can quickly heat the flowing air passing through the duct to meet the production, operation and personnel comfort temperature requirements in large factory areas. It can be matched with the existing factory ventilation duct system, and is suitable for auxiliary heating of production workshops, warehouse areas, large assembly plants and other factory spaces.

E-mail: kevin@yanyanjx.com

Product Detail

Product Tags

Product Introduction

Working principle

Start condition: The blower is started, and air flow is generated in the air duct. Then open the heating part.

Heating process: The control system compares the set target temperature with the actual temperature feedback from the temperature sensor, and controls the solid-state relay to output the corresponding power to the electric heating tube through PID calculation.

Heat exchange: Cold air is forced to flow through the surface of the electrically heated electric heating tube by the fan, and undergoes sufficient heat exchange, resulting in an increase in temperature.

Accurate temperature control: The PID controller continuously compares and fine tunes, ensuring that the exhaust temperature remains stable within the set required range with minimal fluctuations.

Security protection: In case of abnormal situations such as temperature exceeding the limit and etc., the protection system will immediately cut off the power and sound an alarm.

Technical Parameters

Rated Power	10-1000 KW
Rated Voltage	220-380 V AC
Applicable Duct Size	100mm (width) × 300mm (height)
Maximum Air Flow	2000-5000m³/h
Outlet Temperature Range	0 - 85 °C (adjustable)
Heating Element Type	Tubular heater
Protection Grade	IP44

Technical Date Sheet

Product details display

Composed of electric heating elements, centrifugal fan, air duct system, control system, and safety protection

1. Electric heating element: core heating component, common materials: stainless steel, nickel chromium alloy, power density is usually 1-5 W/cm ².

2. Centrifugal fan: drives air flow, with an air volume range of 500~50000 m ³/h, selected according to the volume of the drying room.

3. Air duct system: Insulated air ducts (material: stainless steel plate+aluminum silicate cotton, temperature resistant to 0-400 ° C) to ensure efficient heat transfer.

4. Control system: contactor control cabinet/solid-state control cabinet/thyristor control cabinet, supporting multi-stage temperature control and alarm protection (over temperature, lack of air, overcurrent).

5. Safety protection: Overheating protection switch, explosion-proof design (Ex d IIB T4, suitable for flammable environments).

Core function

Preheating air: In winter or low temperature environments, heat the inhaled cold air to the initial temperature required by the process.

Process heating: providing heat for the constant temperature and humidity environment of the paint spraying room, or providing high-temperature hot air for the baking room/curing furnace, to quickly cure paints, powder coatings, etc.

Product Features

Compact modular structure, easy to install and integrate with existing factory air duct systems
Intelligent temperature control system, can automatically adjust heating power according to set temperature, energy saving and consumption reduction
Equipped with multiple safety protection functions, including over-temperature protection, over-current protection, open circuit protection, etc., to ensure stable and safe operation
Uniform heating, small air flow resistance, will not affect the normal ventilation effect of the original duct system
Suitable for long-term continuous operation in industrial environments, with strong environmental adaptability

Installation Steps

Step 1: Confirm the installation position and size of the air duct, cut out the installation opening matching the heater size at the reserved position
Step 2: Push the main body of the duct heater into the installation opening, adjust the position to make it fit closely with the duct, and fix it with bolts or sealing gaskets

Step 3: Connect the power line and control line according to the electrical wiring diagram provided by the product, confirm that the grounding protection is connected correctly

Step 4: Seal the gap between the heater and the duct with high temperature resistant sealing material to prevent air leakage

Step 5: Conduct power-on test before formal operation, check whether the heating function is normal and whether the protection device acts sensitively