Engineering Tunnel Cooling Low-Temperature Air-Cooled Unit

During tunnel excavation, high-temperature surrounding rock can expose workers and equipment to extreme heat, adversely affecting health and work efficiency. Traditional tunnel cooling methods rely on ventilation, where fresh air from the tunnel entrance is directly delivered to the excavation face to reduce temperatures. However, in long tunnels, air transported over long distances in high-temperature environments is heated by the surrounding rock, reaching temperatures nearly identical to the original tunnel temperature before arriving at the work area, resulting in minimal cooling effect. Efficiently and economically reducing high temperatures in deep, long tunnels during construction to improve the working environment is an urgent issue. Therefore, it is necessary to install a movable, customized low-temperature air-cooled unit in the tunnel to provide localized cooling in the work area, effectively lowering temperatures and creating a cooler environment for construction personnel.

Unit Advantages

1.Compressor refrigeration, high cooling capacity, adjustable temperature range 5°C to 30°C ±3°C (adjusted based on actual working conditions),

3. Rapid cooling, high air volume, ventilation, dehumidification, dust prevention, and heatstroke prevention advantages. Improves mining efficiency, saves electricity, reduces costs, quick installation, and easy maintenance.

4. Integrated unit design for easy mobility.

5. All components are original, brand-new products from the factory, using stable and reliable brands with low failure rates. Our company strictly prohibits the use of second-hand or refurbished refrigeration compressors.

Working Principle

Select a location in the tunnel to place the low-temperature air-cooled unit. Extract air from the tunnel, cool it to serve as a cold source, and then use a fan to deliver the cold air to the mining work area for effective cooling, reducing the temperature to the desired ideal level.

Features of the Tunnel Cooling Low-Temperature Air-Cooled Unit.

1. Scientifically designed, meticulously manufactured, with an attractive appearance, excellent performance, and reliable quality.

2. Equipped with a centrifugal fan for high air volume, long-distance air delivery, and low noise.

3. The unit includes eight protection functions: high-pressure protection, low-pressure protection, phase sequence protection, phase loss protection, overheating protection, overload protection, freeze protection, and air deficiency protection.

4. The unit control uses a human-machine interface microcomputer system, optionally with a touch screen, and includes an R485 communication port for remote control.R485 communication port, enabling remote control of the unit;

6. Uses national standard refrigerants. Our company independently develops mixed refrigerants that can be selected based on different usage environments.

Our Services

1.All our equipment comes with a one-year warranty and lifetime maintenance (excluding human factors and consumables).

2.Upon receiving a written equipment repair request, we respond within 36 hours for repairs within Guangdong Province and 72 hours for repairs outside Guangdong Province..

3.Goods are transported via road logistics directly to the user's location. For urgent needs, dedicated vehicles can be arranged.

Unit Technical Parameters

Note: 1. Inlet air dry bulb temperature 23°C, wet bulb temperature 17°C: the dry bulb temperature of 23 ℃, wet bulb temperature 17 ℃.

2. Condenser inlet water temperature 30°C, condenser outlet water temperature 35°C. Cooling water temperature into 30 、Cooling water temperature for 35.

2. The above parameters are subject to change without prior notice. The above parameters are subject to change without prior notice.