What factors can cause cooler fouling
Source: http://le-signal.com/ Time: 2017-02-04
In the long-term, everyone may encounter the phenomenon of scaling. Because the environment and place of use of the cooler are different, the situation of scaling is also different, but there are some common places. the elements of:
(1) Fluid flow rate: In an oil cooler, the effect of flow rate on dirt should be considered at the same time as its effect on dirt deposition and dirt erosion. For various types of dirt, the increase in erosion rate caused by the increased flow velocity is more important than dirt deposition The rate is more significant, so the growth rate of fouling decreases with increasing flow velocity.
(2) The temperature of the heat transfer wall: Temperature has an important role in chemical reaction scaling and salt crystallization, and an increase in the temperature of the fluid generally leads to an increase in the rate of chemical reaction and crystallization. Has an impact, resulting in increased dirt growth.
(3) Heat exchange surface material and surface quality: For commonly used carbon steel and stainless steel, it is susceptible to corrosion, so it will scale and rust; choose a material with better corrosion resistance to reduce the generation of dirt. The surface of the material also affects the generation of dirt. The larger the surface roughness, the easier it is to scale, so the selection and use of the material is very important.
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