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首页> 外文期刊>American Journal of Chemical Engineering >Effect of Bottom Baffles and Air Inlet Position on Mass Transfer Performance of a Water-Sparged Aerocyclone
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Effect of Bottom Baffles and Air Inlet Position on Mass Transfer Performance of a Water-Sparged Aerocyclone

机译：底部挡板和进气口位置对水喷射旋流器传质性能的影响

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摘要

Water-sparged Aerocyclone (WSA) is a new type of gas-liquid mass transfer equipment with a coupling field of liquid jet with gas cyclone, which can be widely used in wastewater treatment process. To further optimize the structural design of WSA, the effect of bottom baffles and air inlet position on mass transfer performance of WSA was comparatively studied by air stripping of ammonia from wastewater. The results indicated that the separation space configuration of a WSA affects its mass transfer performances. Under the same condition, the axial air inlet position has no effect on mass transfer performance, but moving air inlet position downward could reduce the gas pressure drop in WSA by about 10%, which was probably caused by abating the friction loss between the gas cyclone and the wall. In case of high air inlet velocity and low liquid flow rate, the bottom baffles in the WSA could intensify the mixing effect between gas and liquid phases, thereby improving the mass transfer performance, and the effect is more pronounced with the increase of air inlet velocity. The results could be used as a guide for the design of WSA with excellent mass transfer performance.
机译：喷水旋流器（WSA）是一种新型的气液传质设备，具有液体射流与气旋的耦合场，可广泛用于废水处理过程。为了进一步优化WSA的结构设计，通过空气汽提废水中的氨气，比较研究了底部挡板和进气口位置对WSA传质性能的影响。结果表明，WSA的分离空间配置会影响其传质性能。在相同条件下，轴向进气口位置对传质性能没有影响，但向下移动进气口位置可将WSA中的气压降降低约10％，这可能是由于减弱了旋风分离器之间的摩擦损失造成的和墙。在进气速度高，液体流速低的情况下，WSA的底部挡板可以增强气相和液相之间的混合效果，从而改善传质性能，并且随着进气速度的增加，效果更加明显。 。该结果可作为具有优良传质性能的WSA设计的指导。

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