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Structure and capture efficiency of chevron mist eliminator
- Nov 29, 2018 -

In the chevron mist eliminator, it mainly comprises two major components, namely a plate and a supporting device. The plates are usually made of polymer material or stainless steel. Generally divided into streamlined and polyline type. In the FGD system, there are droplets in the flue gas after the spray washing, and in order to ensure the safe operation of the downstream equipment, these droplets must be removed.


In the structural design of the chevron mist eliminator, an integrated design is particularly adopted. Thus, during use, the flue gas passes through the demister and then enters the net flue gas flue upward. The first stage of the mist eliminator removes larger droplets and the second stage removes the remaining smaller droplets. It is necessary to periodically rinse the defogger during operation.


In the process of defogging, the trapping efficiency of the chevron mist eliminator is often related to the airflow velocity. Normally, it will increase as the gas flow rate increases. This is because the flow rate is high and the centrifugal force acting on the droplets is large, which is favorable for the separation of gas and liquid. At the same time, an increase in the flow rate will cause an increase in system resistance, resulting in an increase in energy consumption.