Ducted (Explosion-Proof) Hot Air Unit

ProductIntroduction:

　　The ducted (explosion-proof) hot air unit is primarily designed for winter wellbore insulation in mines. Tailored to the mine's winter wellhead freezing tendency, it features a furnace and supporting facilities. This unit ensures the wellbore temperature remains above 2℃ during severe winters. It is mainly suitable for AC 50HZ power systems with rated working voltages of 380V/660V. The explosion-proof hot air furnace produced by Hsi Te Electrical is aimed at maintaining wellbore temperatures above 2℃ in winter. The equipment is also equipped with a video monitoring system, alarm interlock system, mobile APP, and wellhead air mixing unit. This heating unit boasts excellent features like environmental protection, energy saving, no emissions, unattended operation, maintenance-free, full automation, and remote monitoring, and has been widely applied in many northern mines.

2. Key Features:

1) Energy-saving: Direct air heating with minimal heat exchange, achieving over 95% heating efficiency. The system's power regulator can adjust the heating power in real-time according to external temperature changes. The wellhead mixing fan can increase the mixing efficiency of cold and hot air by about 20%, shortening the heating time under the same heating power.

2) Environmental Protection: Clean energy, pollution-free, zero emissions, no waste gas or waste residue.

3) Safety: Hardware interlock, software interlock, alarm system, temperature, CO, gas sensors, central control system, video monitoring system, mobile APP, high-strength, high-temperature-resistant industrial flame-retardant materials, reliable and safe.

4) Convenience: Easy installation and transportation, simple operation and usage, user-friendly interface, visual video surveillance system, and always-accessible mobile app.

5) Maintenance-Free: Maintenance-free for 3 years.

6) High protection: Rainproof, Snowproof, Dustproof

7) Cost and Construction Time Savings: No need to build a house

3. Application Environment:

1) Environmental Temperature: Maximum: +30°C, Minimum: -40°C

2) Environmental Humidity: Relative Humidity: ≤95%

3) Application: Suitable for well shaft heating within a distance of 20 meters from the mine shaft mouth, explosion-proof grade ExdⅡCT1-6Gb.

4. Application Technology:

1) Precision Energy-Saving: Utilizes precision energy-saving control software, aiming for a mixed air temperature set point (2℃) as the control target, automatically adjusts heating power, and precisely controls the heating power for excellent energy-saving effects.

2) Numerical Simulation: Utilizing CFD flow simulation technology, we perform numerical simulations on specific engineering solutions for internal flow characteristics in mines, main airways, auxiliary airways, and multi-unit coupled air supply schemes. This analysis yields the internal temperature field and flow field distribution patterns within the hot air furnace, facilitating the design and validation of parallel unit coupled air supply schemes. Ensuring that explosion-proof hot air units operate normally and efficiently on-site.

3) Safety Interlock: Full-featured safety interlock protection including fan and heating group interlock protection, furnace over-temperature protection with heating group interlock, and automatic disconnection of fault heating group circuit protection.

5. Product Specifications: