FAQ

Overview of the specific performance of closed cooling towers

Author：Trlon Views: Time:2021-03-25

　　Closed cooling tower is a kind of cooling tower, which is very common in industrial activities. Its components include main engine, water tank, circulating water pump and electric control cabinet. The main engine is an important part, consisting of a shell, a fan, a water tank, a water collector, a heat exchanger, a spray pump, and pipeline valves.

　　A. The scope of application of closed cooling towers

　　1. Induction heating and metal smelting equipment, such as: high and intermediate frequency quenching equipment, intermediate frequency power supply and electric furnace, induction heating furnace, holding furnace, etc. cooling.

　　2. Cooling of circulating water in various reactors and condensers in the chemical industry.

　　3. Cooling of large motors, diesel engines, rectifier equipment, electric welding equipment, hydraulic stations and continuous casting equipment, etc.

　　4. Cooling of metal die-casting molds, injection molds and other large molds.

　　5. Cooling of industrial solutions, such as quenching solution, electroplating solution, etc.

　　B, the working process of the closed cooling tower

　　The cooling medium, such as soft water, oil or other liquids, is driven by the main circulating pump to circulate between the heat exchanger and the equipment to be cooled. The spray water is evenly sprayed on the heat exchanger to form a uniform surface on the heat exchanger The cold air enters the tower through the air inlet below the tower body, and flows through the surface of the heat exchanger counter-currently with the spray water. There are two heat exchange methods in this process, namely, the heat transfer between the cold air and the cooling medium and the heat transfer between the cold air and the cooling medium. The spray water evaporates and absorbs heat for heat exchange. After absorbing the heat, the saturated hot humid air is discharged into the atmosphere by the fan, and the rest of the spray water flows into the water tank in the lower part of the tower, and then is transported to the spray system by the water pump. In this way, the cooling medium in the heat exchanger is cooled down.

　　C, the advantages of closed cooling towers

　　1. The cooling medium is fully closed circulation, which can prevent debris from entering the cooling pipeline system and the evaporation loss of the cooling medium.

　　2. Use soft water as the cooling medium, no scaling, no clogging of pipelines, and fewer failures.

　　3. Adopt air cooling and spray water evaporation and heat absorption dual cooling method, high cooling efficiency.

　　4. The device is small in size, occupies a small space, and is convenient to move and place, without the need to build a pool.

　　5. With automatic intelligent control, the cooling mode can be automatically changed according to the requirements of the working conditions, and the operation is simple and reliable.

　　6. Wide range of applications, can directly cool quenching liquid, oils, alcohols and other non-corrosive media to the heat exchanger, without loss of media, and stable composition.

　　Fourth, the characteristics of closed cooling towers

　　1. Real materials

　　All spare parts, especially the main materials and equipment, are strictly selected and made with precision to ensure that the quality is always the best. The continuous and effective quality management system ensures that customers can get professional-quality products and services in the whole process from raw material procurement to installation and commissioning.

　　2. Strong heat dissipation capacity

　　The design meteorological conditions shall be designed in accordance with the requirements of the open cooling tower standard, and the necessary margin shall be considered in the design and equipment selection process. High standards and strict requirements naturally create superior heat dissipation capacity and adapt to stricter meteorological environment and working conditions. Using industry-leading design methods and optimized heat exchange models, high-efficiency, low-resistance heat exchangers and an excellent circulating spray system, the heat exchange efficiency is greatly improved, the floor space is reduced, and the tower weight is reduced.

　　3. Simple operation

　　The speed-regulating motor can be selected according to the needs to realize energy saving, and it can be easily incorporated into the automatic control system and easy to manage.

　　4. Good environmental protection

　　Comprehensive treatment measures make the indicators of vibration, noise, and water floating more in line with environmental protection requirements. It adopts special low-noise fan, motor and reducer, with high efficiency and low noise. The optimized design of the tower steel frame structure is simple, stable and reliable, and the operating vibration is controlled within a very low range. The high-efficiency water collector ensures that the floating water loss can be minimized under the premise of meeting the large air volume, and fully meets the environmental protection requirements.

　　5. Beautiful and durable

　　The structural design is scientific, well-made, small footprint, beautiful appearance, especially suitable for all kinds of modern enterprise buildings. The structural parts are made of high-grade stainless steel or hot-dip galvanized steel, and the appearance is smooth and beautiful, and the warranty is more than 15 years.

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