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Composition and advantages of spray heat exchanger
May 31, 2020

The spray heat exchanger is a type of tube heat exchanger. It is a row of heat exchange tubes fixed on a steel frame. The hot fluid flows in the tube. The cooling water is evenly poured from the upper spray device, so it is also called Spray cooler. The outside of the tube of the spray heat exchanger is a layer of liquid film with a high degree of turbulence, and the heat supply coefficient outside the tube is much larger than that of the immersion type.

In addition, most of the spray heat exchangers are placed in the air circulation, and the evaporation of the cooling water also takes away part of the heat, which can play a role in reducing the temperature of the cooling water and increasing the driving force for heat transfer. Compared with the immersion heat exchanger, the heat transfer effect of the spray heat exchanger is greatly improved.

A

The advantages of spray heat exchangers are:

◆Simple structure and low cost;

◆It can reduce the temperature of cooling water and increase the driving force of heat transfer;

◆Can withstand high pressure;

◆Easy to overhaul and clean, low water quality requirements.

The disadvantages of spray heat exchangers are:

◆The uneven cooling water spray will affect the heat transfer effect;

◆Can only be installed outdoors.

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