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Introduction to Open-Circuit Cooling Towers
Open-circuit cooling towers, also commonly referred to as opened cycle cooling towers or simply open cooling towers, are heat rejection devices that play a pivotal role in various industries. These towers facilitate the transfer of waste heat from warm water streams into the atmosphere, thereby significantly reducing the temperature of the water for reuse or discharge. The process involves the evaporation of a small portion of the water, which absorbs latent heat from the remaining water, enabling effective cooling. Open-circuit cooling towers are a vital component in maintaining the efficiency and stability of industrial processes worldwide.
1.Compact Structure
There are no cooling coils inside the tower, so structure is compact, installation area is less.
2. Cheaper
The purchasing cost of equipment is much cheaper than steel type, but should notice the operating costs(water consumption, power consumption and etc).
3. High quality FRP
Ageing resistance, do not fade, anti-corrosion.
| Technical Parameters of FRP Round Open type | |||||||||
| Model | Flow Rate (m³/h) |
Fan | Air flow (cmm) |
Water Pressure (K pa) |
Net weight (kg) |
Operating weight (kg) |
Dimension | ||
| Motor Power (kw) |
Diameter (mm) |
D max | H | ||||||
| DBNL-10 | 7.8 | 0.18 | φ600 | 85 | 13 | 46 | 190 | φ945 | 1530 |
| DBNL-15 | 11.7 | 0.37 | φ600 | 140 | 13 | 54 | 290 | φ1195 | 1415 |
| DBNL-20 | 15.6 | 0.55 | φ730 | 160 | 14 | 67 | 300 | φ1195 | 1590 |
| DBNL-25 | 19.5 | 0.75 | φ730 | 200 | 16 | 98 | 500 | φ1400 | 1820 |
| DBNL-30 | 23.4 | 0.75 | φ730 | 230 | 16 | 116 | 530 | φ1650 | 1705 |
| DBNL-40 | 31.2 | 1.5 | φ890 | 280 | 16 | 130 | 530 | φ1650 | 1775 |
| DBNL-50 | 39.2 | 1.5 | φ890 | 330 | 17 | 190 | 975 | φ1830 | 1835 |
| DBNL-60 | 46.8 | 1.5 | φ1150 | 420 | 17 | 240 | 1250 | φ2145 | 1955 |
| DBNL-80 | 62.6 | 1.5 | φ1150 | 450 | 18 | 260 | 1280 | φ2145 | 2035 |
| DBNL-100 | 78.1 | 2.2 | φ1410 | 700 | 21 | 500 | 1690 | φ2900 | 2370 |
| DBNL-125 | 97.5 | 2.2 | φ1410 | 830 | 23 | 540 | 1640 | φ2900 | 2555 |
| DBNL-150 | 117 | 2.2 | φ1410 | 950 | 23 | 580 | 1680 | φ2900 | 2555 |
| DBNL-175 | 136.8 | 4 | φ1750 | 1150 | 30 | 860 | 1960 | φ3110 | 2850 |
| DBNL-200 | 156.2 | 4 | φ1750 | 1250 | 30 | 880 | 1980 | φ3110 | 2850 |
| DBNL-225 | 175.5 | 5.5 | φ2050 | 1500 | 33 | 1050 | 2770 | φ4120 | 3580 |
| DBNL-250 | 195.1 | 5.5 | φ2050 | 1750 | 33 | 1080 | 2800 | φ4120 | 3580 |
| DBNL-300 | 234 | 7.5 | φ2350 | 2000 | 34 | 1760 | 3930 | φ4730 | 3680 |
| DBNL-350 | 273.2 | 7.5 | φ2350 | 2200 | 34 | 1800 | 3790 | φ4730 | 3680 |
| DBNL-400 | 312.1 | 11 | φ2745 | 2400 | 36 | 2840 | 5740 | φ5600 | 3840 |
| DBNL-500 | 392.4 | 15 | φ2745 | 2600 | 36 | 2900 | 5800 | φ5600 | 3840 |
| DBNL-600 | 468 | 15 | φ3400 | 3750 | 42 | 3950 | 9350 | φ6600 | 4470 |
| DBNL-700 | 547.2 | 18.5 | φ3400 | 3750 | 42 | 4050 | 9450 | φ6600 | 4470 |
| DBNL-800 | 626.4 | 22 | φ3700 | 5000 | 45 | 4700 | 11900 | φ7600 | 4720 |
| DBNL-1000 | 781.2 | 22 | φ3700 | 5400 | 45 | 4900 | 12100 | φ7600 | 4720 |
Operating Principle
The core principle behind open-circuit cooling towers lies in the evaporative heat rejection process. Warm water is distributed over a specialized fill material within the tower's enclosed structure, creating a vast surface area for air-water interaction. As air flows through the tower, it comes into direct contact with the water droplets or film, causing evaporation. This evaporation requires energy, which is extracted from the water itself, thereby cooling it. The heated and moisture-laden air is then discharged into the atmosphere, while the cooled water collects in a basin beneath the fill and is recirculated or discharged as needed.
Advantages of Open-Circuit Cooling Towers
Efficient Cooling: Open-circuit cooling towers offer highly efficient cooling due to the evaporative process. The direct contact between air and water allows for maximum heat transfer, resulting in a significant reduction in water temperature. This efficiency is crucial in maintaining the optimal operating conditions of various industrial systems.
Energy-Saving and Environmentally Friendly: Compared to other cooling methods that rely on electricity or fossil fuels, open-circuit cooling towers utilize natural evaporation and convection, making them energy-efficient. Additionally, they reduce greenhouse gas emissions and minimize the use of cooling agents that may have environmental impacts.
Low Maintenance: The simplicity of open-circuit cooling towers' design contributes to their low maintenance requirements. Regular cleaning of the fill material, water basin, and nozzles ensures optimal performance. The absence of complex mechanical systems further simplifies maintenance procedures.
Flexibility and Adaptability: Open-circuit cooling towers can be tailored to suit various cooling demands. By adjusting the water flow rate, airflow, and nozzle configuration, operators can optimize the cooling efficiency to match specific requirements. This adaptability makes them suitable for a wide range of industrial applications.
Our Vision and Mission
Our vision is to create a world where efficient thermal management is not just an option but a necessity, driving sustainability and reducing environmental impact across the globe. We achieve this through our mission to design, manufacture, and deploy cutting-edge cooling solutions that combine state-of-the-art technology with environmental consciousness. We strive for excellence in every aspect of our operations, from R&D to customer service, ensuring that our clients receive nothing short of the best.
Customized Solutions for Diverse Industries
Recognizing that no two industries have identical cooling requirements, we offer a wide range of customized cooling tower solutions. From power generation plants and manufacturing facilities to data centers and commercial buildings, our products are designed to meet the specific demands of each application. Whether it's reducing water consumption, minimizing noise pollution, or optimizing energy efficiency, we have a solution that fits perfectly.
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