NEWS CENTER
Oasis Iceberg
13
2024
-
07
The difference between closed cooling tower and open cooling tower is whether it is equipped with heat exchange coil?
Many people left a message to Xiaozhou saying that the difference between closed cooling tower and open cooling tower is whether it is equipped with heat exchange coils?
Many people left a message to Xiaozhou saying that the difference between closed cooling tower and open cooling tower is whether it is equipped with heat exchange coils?
Xiaozhou tells you from a professional point of view that the difference between the two is not only whether it is equipped with heat exchange coils, but also different working principles, different cooling methods, different cooling media, different energy-saving effects, and different maintenance.
Cooling principle is different
The closed cooling tower is a fully enclosed cycle, and the internal circulating medium is completely isolated from the air. The circulating medium has no evaporation, no consumption, stable composition, no scaling and no blockage.
The open cooling tower circulating water is directly in contact with the air, the evaporation capacity is large, and the loss is large, easy to scale, easy to block.
Different cooling methods
The closed cooling tower adopts the combined cooling mode of air cooling and water cooling.
The open cooling tower is only air-cooled.
Different cooling media
Closed cooling tower can be directly cooling water, oil, alcohol, quenching water, brine and chemical liquid and other media, media without loss, stable composition.
In principle, the open cooling tower can only cool water.
Different cooling temperature
Closed cooling towers can cool high-temperature media.
In principle, the open cooling tower can only cool water below 65 degrees.
Different cooling effect
The closed cooling tower is a double-circulation system with excellent cooling effect and stable circulating medium composition.
However, the open cooling tower has only a single cooling, and the cooling effect is poor. The circulating water is in direct contact with the air, and it will inevitably fall into impurities and the composition is unstable.
Different energy saving effect
Closed cooling tower fully closed cycle, no evaporation of internal circulating water, no consumption, external circulating water floating rate is very low, intelligent control, saving a lot of water, manpower, electricity and so on.
The evaporation rate, consumption rate and floating water rate of the circulating water of the open cooling tower are very high.
Different degree of protection for cooled equipment
Closed cooling tower fluid closed cycle, will not be contaminated, evaporation, concentration, etc., no need to add medicine, so the protection of the associated equipment, does not affect the service life of the associated equipment.
Because the fluid is in direct contact with the air, the open cooling tower is evaporated and concentrated, and the liquid medicine is often added, and water needs to be replenished frequently, which affects the normal use of the associated equipment and affects the service life of the associated equipment.
Different degree of maintenance and repair
Closed cooling tower without frequent downtime maintenance, safe and stable operation, suitable for continuous operation of the system,
The open cooling tower requires frequent downtime for maintenance and repair, which is not suitable for continuous operation of the system.
Use different performance
Closed cooling tower circulation medium closed circulation, no direct sun, so will not produce algae, salt crystallization, no need to remove salt, in addition to dry, to ensure the high performance operation of the system.
The circulating medium of the open cooling tower is directly exposed to the sun, resulting in algae and salt crystallization, which affects the performance of the system.
Different environmental protection
The closed cooling tower supports dry operation and does not produce a large number of bacteria. It can be used in occasions with air purification needs and is also suitable for arid areas with water shortage. Energy saving and environmental protection.
Open cooling tower can not be dry operation. The scope of application is small and the environmental protection is poor.
Security is different.
When the circulating medium is a volatile and irritating fluid, the closed cooling tower will not pollute the environment because it is a closed circulating system.
If an open cooling tower is used, the circulating medium needs to be in direct contact with the air, which will create potential safety hazards.
Different prices
Closed cooling tower due to high technical requirements, meticulous production process, the use of high-quality materials, so the price is more expensive than the open cooling tower, but the cost of later operation and maintenance is much lower than the open cooling tower. The service life is also much longer than the open cooling tower.
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