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Water- and Energy-Saving Cooling Tower
Meets Level 2 energy efficiency as specified in GB/T 7190.1-2018, with a specific power consumption of ≤0.030 kW/(m³/h) (combined energy consumption of fan and pump).
Category：
Water-saving and energy-efficient cooling tower
Keywords：
Water Saving Cooling Tower
Water- and Energy-Saving Cooling Tower Details
Basic Performance Parameters
Energy efficiency rating
Meets Level 2 energy efficiency as specified in GB/T 7190.1-2018, with a specific power consumption of ≤0.030 kW/(m³/h) (combined energy consumption of fan and pump).
Compared with conventional cooling towers (with a specific power consumption exceeding 0.035 kW/(m³/h)), the energy-saving rate is ≥14%.
Water drift rate and makeup water volume
The drift rate of water‑saving open‑type cooling towers is ≤0.001%¹, while that of closed‑type towers is even lower, at 0.005%.
Make-up water volume: For closed-loop cooling towers, it is 0.1–0.2‰ of the circulating water flow, achieving a water-saving rate of over 50%.
Structural Design Parameters
Parameter Category |
Technical indicators |
Fan configuration |
High-efficiency axial flow fan (efficiency > 75%), with motor energy efficiency meeting the Level 2 standard of GB 18613-2020. |
Heat exchanger |
Copper-tube, aluminum-fin design (increases heat exchange efficiency in closed‑type towers by a factor of three and reduces reliance on spray water) |
Tower material |
Fiberglass-reinforced plastic (HBLG3 series), galvanized steel, or hot-dip galvanized carbon steel (corrosion-resistant) |
Operating Modes and Water-Saving Strategies
Multi-mode switching
Adiabatic mode: Air is pre-cooled through a wet pad, with supplemental misting in summer, reducing operating energy consumption by 40%.
Dry-air mode: During the transitional season, rely solely on natural air cooling and shut down the spray system.
Intelligent Control
Real-time monitoring of ambient temperature and humidity, with automatic selection of the cooling mode (e.g., high-efficiency spray cooling is activated when the wet-bulb temperature reaches or exceeds 28°C).
Comparison of Energy Consumption and Water-Saving Metrics
Parameter |
Water- and Energy-Saving Cooling Tower |
Traditional cooling tower |
Power consumption ratio |
≤0.030 kW/(m³/h) |
>0.035 kW/(m³/h) |
Water drift rate |
≤0.001% (open type) |
0.01–0.02% |
Annual replenishment volume |
300 m³/h tower water savings ≥ 100 m³/year |
A tower of the same scale consumes 200 m³ of water per year or more. |
Typical Model Specifications
Energy-saving cross-flow type (HBLG3 series)
Flow range: 800–4,000 m³/h, per-unit treatment capacity.
Noise: ≤65 dB(A) (measured 1 meter from the tower), equipped with a low-speed fan.
Adiabatic Closed-Circuit Cooling Tower
Water-saving rate: Annual comprehensive water savings ≥ 50%, with a 30% reduction in overall energy consumption.
Cooling temperature difference: cold-side delta ≤ 3°C (under extreme operating conditions).
Equipment Schematic Diagram
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