Mine-used explosion-proof electric heating unit

ProductIntroduction:

　　The Coal Mine Explosion-Proof Electric Heating Unit is specifically designed for winter wellbore insulation in mines. Tailored to the mine's vulnerability to freezing at the wellhead during winter, it features a furnace and supporting facilities. This unit ensures the wellbore temperature remains above 2℃ even in extreme cold. It is primarily suitable for power supply systems with a frequency of 50HZ and rated working voltage of 380V/660V. The unit is designed to maintain the wellbore temperature above 2℃ during winter. Additionally, it is equipped with a video monitoring system, alarm interlock system, mobile APP, and wellhead mixing air device. This heating unit boasts excellent features such as environmental protection, energy conservation, zero emissions, unattended operation, maintenance-free, full automation, and remote monitoring.

2. Key Features:

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

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

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

4) Convenience: Easy installation and transportation, user-friendly operation and usage, intuitive human-machine interface, visual video monitoring system, and a mobile app for real-time access.

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

6) High Protection: Rainproof, Snowproof, Dustproof

7) Cost & Construction Time Savings: No need to build houses

3. Application Environment:

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

2) Environmental Humidity: Relative Humidity: ≤95%

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

4. Application Technology:

1) Precise Energy Saving: Utilizes precise energy-saving control software, aiming for a mixed air temperature setpoint (2℃) for control, automatically adjusts heating power, precisely controls heating power, achieving excellent energy-saving effects.

2) Numerical Simulation: Utilizing CFD flow simulation technology, we conduct numerical simulations on the internal flow characteristics of specific engineering schemes for mine shafts, main air ducts, auxiliary air ducts, etc., as well as multi-compressor coupling air supply schemes. This analysis helps us understand the internal temperature field and distribution of the pipeline flow field within the hot air furnace. It is used for designing and verifying the parallel compressor coupling air supply scheme, ensuring that the explosion-proof hot air units can 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 and heating group interlock protection, and automatic disconnection of faulty heating group circuit protection.