| 摘要 |
Apparatus and method for using a heated waste gas stream to evaporate a volatile component such as water or a solvent from a liquid solution comprises a flue to feed the gas stream from the source of heated gas; a container having an inner chamber to hold the liquid for evaporation of the volatile compound and an outer chamber connected to the flue which forms a gas channel substantially surrounding the inner chamber through which at least a portion of the gas stream flows to supply heat to the inner chamber and evaporate the volatile component of the liquid solution; an inlet to feed the liquid solution into the inner chamber; upper and lower liquid level sensors to control the quantity of liquid solution fed into the inner chamber to establish a liquid level therein; a sparger for agitating the liquid solution in the inner chamber; a sump below the container and connected to the flue to receive any condensate from the gas stream and any liquid leaking from the inner chamber; an outlet to combine, vent and discharge the evaporated volatile component from the inner chamber and the gas stream from the outer chamber; and an outlet for removing the liquid from the inner chamber. The sump includes a dam to prevent the condensate and leaking liquid from flowing back through the flue to the source of the gas stream and a discharge outlet to allow draining when the received condensate and leaking liquid exceed a predetermined amount.
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