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For use with the study of closed cooling tower with respect to foreign later. The 1980s, Tongji University, Harbin Institute of Technology and other universities of the transfer process fluid coolers theoretical analysis, and fluid coolers used in central air conditioning units, air-source heat pump for the relevant research and experimentation. Today, the closed cooling tower has been recognized by everyone, and is widely used in various industries. Here are a few common closed cooling tower related applications allow readers to better understand the power of the tower closed.
Chemical Industry
Chemical industry, fluid coolers can be used to replace open cooling tower system to improve cooling water utilization, reduce water treatment costs, reduce fouling resistance, prompting equipment clean run, ultimately reducing equipment downtime cleaning, maintenance times, to ensure the production continuous and efficient. Meanwhile, the closed cooling tower can also add cold water to replace the water-cooled heat exchanger tower system, reduce floor space, while reducing operating costs.
Calcium carbide industry
Power plants, gas turbine end of the lack of regular use of water-cooled or air-cooled condensing and cooling system, high costs, high operating costs, low thermal cycle efficiency, high back pressure, and in the summer peak time condensing and cooling tasks difficult to complete, causing generators security risks. Use the turbine end of the joint closed cooling tower and cooling system over the cold island, or replace the use of closed water-cooled condensing steam turbine end of the exhaust steam condensing system, lack of access to less than the cooling system or air-cooling system steam temperature back pressure, thus effectively improving the performance of the steam turbine power generation, while the closed cooling tower (condenser) adjustable cooling mode, the fan spray of water, depending on the frequency and the flexibility and power demand season, and thus more energy efficient.
Air conditioning cooling equipment
Central air conditioning, water-cooled semi-centralized system in general by recuperative heat exchanger and a number of open-cold water towers, cooling tower fouling heavier fluid is dirty, large water consumption, high operating costs, the use of closed cooling towers, replace some or all open cooling towers, both to improve the efficiency of heat transfer equipment, but also reduce the cooling water consumption, but also run cleaner.
Ships and offshore drilling platforms
Ships and offshore drilling platforms, most are water-cooled refrigeration heat exchangers using seawater to cool the drill bit tell the temperature, or for the production of oil distillation after cooling cooling or evaporation of seawater after the first condensing downplayed cooling, or as a marine power systems, power generation systems, air conditioning systems, cooling systems. Due to the unique seawater strongly alkaline, caustic, mixed debris, microorganisms more serious cause cooling system corrosion, low heat transfer performance, often malfunction, maintenance and life cycle is short, live dirty and so on. Conforming flow fluid coolers, substantial reduction in the weight and floor space, reducing the weight of the hull, thereby reducing the power of the thermal power of the hull, while the closed loop to provide a cleaner during operation, to reduce the amount of water both corrosion and can also reduce the cost of water treatment and biological treatment.
Petrochemical industry
Petrochemical industry, often need to deal with oil fractionation and distillation, distillation column at the bottom of the sub-reheaters Want directly into superheated steam, resulting in extended periods of time at a high temperature, high load, which not only significantly reduce equipment life, but also the heat transfer efficiency is low, the use of closed cooling tower, cooling of superheated steam treatment so as to achieve saturation and then passed through the reheater, can significantly improve the heat transfer device system (heat transfer per unit area increased by 1 left and right), while reducing equipment high temperature load, reduce scaling, cleaning and maintenance times, extended equipment life.
Not only that, closed cooling tower has also been widely used in induction heating and metal smelting equipment, such as: high, intermediate frequency quenching equipment, frequency power supply and electric furnace, induction heating furnace, holding furnace, such as cooling. And cooling large motors, diesel engines, rectifier equipment, welding equipment, hydraulic station, and continuous casting equipment and the like.