What is a flash evaporator? How does it work? What does the internal structure look like?

2015-09-23View Original

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What is a flash evaporator? How does it work? What does the internal structure look like?

Reply #22015-09-23

This involves heating under pressure, and then suddenly reducing the pressure below the saturation pressure of the gas-liquid phase, which facilitates rapid separation of the gas and liquid phases. There’s no particularly special structure; it just has a control valve on its inlet pipeline. Some inlets may be designed for tangential feeding, with swirl to ensure better separation; after feeding, chevron baffles may be used to facilitate gas-liquid separation, and an appropriate absorbent may also be added to the gas phase after separation.

Reply #32015-09-24

Part of the fluid boils and evaporates into gas through a pressure reducing valve; the gas and liquid are then separated for reuse

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