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Square Cooling Tower
Common specifications: 50 m³/h (DFNL-50) to 1,050 m³/h (DFNL-1050). 6. A single unit can deliver up to 300 m³/h (LXR-300L/SB model) or more than 1,000 m³/h when configured in a multi-unit system.
Category：
Rectangular cooling tower
Keywords：
Square Cooling Tower
Square Cooling Tower Details
Flow and Circulation Parameters
Single-loop water flow rate (key parameter)
Common specifications: 50 m³/h (DFNL-50) to 1,050 m³/h (DFNL-1050). 6. A single unit can deliver up to 300 m³/h (LXR-300L/SB model) or 1,000 m³/h, with the option to combine multiple units for even higher capacities.
Combination model
Pipeline diameter range: DN150–DN400 (suitable for varying flow requirements)
Water pressure requirements: 36 kPa (for the 100T model) to 38 kPa (for the 300T model)
Temperature and Operating Condition Design
Standard Operating Conditions
Industrial tower: Inlet water temperature 42°C → outlet water temperature 32°C (temperature drop of 10°C), wet-bulb temperature 28°C.
Civil tower: Inlet water at 37°C → outlet water at 32°C (temperature drop of 5°C), suitable for low‑load applications such as air conditioning.
Extreme operating conditions: Supports an inlet water temperature of 60°C (requires special design).
Environmental Matching
The design reference wet-bulb temperature is generally ≤28°C and should be adjusted according to the local climate.
Structure and Dimensional Parameters
External dimensions
Small tower (100T): 1980×3200×3700 mm (length × width × height)
Large tower (300T): 3250×5450×5000 mm, with a maximum height of 3600 mm.
Modular Configuration: Multiple towers can be connected in parallel to scale up to 1,050 m³/h (Model DFNL-1050).
Fans and motors
Fan diameter: 1500 mm (100 T) to 2700 mm (300 T) 38
Motor power: 1.5 kW (DFNL-50) to 30 kW (DFNL-1050)
Blade Design: Airfoil‑shaped hollow fiberglass blades, operating at low speeds (energy‑saving and noise‑reducing).
Performance and Noise Reduction
Heat transfer efficiency
Filler type: Special inclined trapezoidal corrugated filler for cooling towers, featuring low airflow resistance and excellent heat-transfer performance.
Air-to-water ratio: To be calculated based on the cooling water flow rate and ambient conditions (unit: kg air/kg water).
Noise reduction technology
Noise Control: High-efficiency noise reduction devices are installed at the inlet and outlet, achieving up to 5 dB(A) of noise reduction for the same equipment specification.
Operating Noise: Low-noise models are suitable for urban environments (such as the LXR series).
Material and Weight
Tower material
Fiberglass shell: corrosion-resistant and lightweight, ideal for long-term outdoor operation.
Water distribution system: ABS multi-layer low-pressure nozzles ensure uniform water distribution and prevent clogging.
Weight parameter
Unladen weight: 860 kg (100 t) to 2,450 kg (300 t)
Operating weight: 2,260 kg (100 t) to 5,250 kg (300 t)
Key Considerations for Selection
Key Parameter Priority
Cooling water flow rate > Temperature drop requirement > Ambient wet-bulb temperature > Noise limits
Parallel connection requirements: Multi-tower configurations must provide reserved interfaces (e.g., the DFNL series supports modular combinations).
Type Selection
Counterflow type: high heat exchange efficiency, suitable for industrial high-temperature water cooling (e.g., the FN steel‑structure series).
Cross-flow type: Compact structure, suitable for space-constrained applications (e.g., LXR-300L/SB model).
Equipment Diagram
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