Closed Circuit Cooling Tower places a tubular heat exchanger in the tower to ensure the cooling effect through heat exchange of circulating air, spray water and circulating water. Because it is a closed design, it can ensure that the water quality is not polluted, which protects the efficient operation of the main equipment and improves its service life.
Closed circuit cooling towers can be divided into counterflow closed cooling towers, crossflow closed cooling towers, mixed flow closed cooling towers according to the air inlet direction.
The tubular heat exchanger is an important component of the closed cooling tower. It is made of stainless steel and has high corrosion resistance, long service life, high thermal efficiency, light weight, and recyclability.
The fin cooler is the main component to realize the dry cooling mode operation of the cooling tower. It has a high heat exchange rate, saves water and energy, and can effectively avoid the generation of "white fog" in cold seasons.
The closed circulating water system does not come into contact with the external environment, which can avoid water evaporation and concentration, and reduce the formation of scale and algae. At the same time, the completely closed circulation of the cooling medium can effectively prevent impurities from entering the cooling pipeline, avoid evaporation loss of the cooling medium, and improve cooling efficiency.
Choosing soft water as the cooling medium avoids pipeline blockage caused by scaling in the cooling system, reduces the failure rate, and improves the reliability and durability of the system.
The circulating water system can not only improve cooling efficiency, but also reduce the waste of water resources and reduce sewage discharge. In addition, the automated intelligent control system can automatically change the cooling mode according to the actual working environment, improving operation accuracy.
Customized design according to the actual needs of customers.
The dual cooling methods of air cooling and spray water evaporation and heat absorption ensure that the system can still maintain good cooling performance in high temperature environments. In addition, automatic temperature monitoring and over-pressure protection devices can prevent system failure and damage caused by overheating or excessive pressure of the equipment.
Adopts frequency conversion control and heat recovery technology. Frequency conversion control can dynamically adjust cooling power to adapt to different cooling needs and avoid energy waste. Heat recovery can recycle the heat generated during equipment operation and reduce energy consumption.
The cooling water of the closed cooling tower is transported from the water tank to the tower body through a water pump, flows down the tower body surface, and meets the dry air blown by the upper blower, resulting in heat transfer and material transfer between the water and the air. At this time, the heat in the water is transferred to the air, and as the water evaporates, a stream of water vapor is formed. The blower beats the water vapor into the gas collector, and then introduces it to other links for processing. Through this transfer method, the temperature of the water continues to drop, and finally returns to the water tank for recirculation.
| Type |
Cooling capacity |
External dimensions |
Net weight |
Running weight |
| NWN-1000-Z7-S | 175 | 4650×2250×3910 | 4000 | 6500 |
| NWN-1150-Z7-S | 200 | 6200×2250×4020 | 4800 | 8500 |
| NWN-1300-Z7-S | 1225 | 6200×2250×4020 | 5000 | 8800 |
| NWN-1450-Z7-S | 250 | 6250×2500×4280 | 5400 | 9700 |
| NWN-1750-Z7-S | 300 | 6250×3000×4380 | 6100 | 11200 |
*The output will vary according to different materials, feed particle size and other factors
Company: IDM Metallurgy Trading Co., Ltd.
Group Address: Tangshan City, Hebei Province, China
Whatsapp: +86-15036707993
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