Liquid preliminary distribution device with gas distribution function

Abstract

The present invention provides a liquid pre-distributor having gas distributing function. The ring material gas-liquid phase separating room is formed by the combination of an adding an air seal ring 2, a liquid collector 3 and a liquid collecting base ring 4 by utilizing of the evenly distribution of the symmetrically two-dimensional guide two rows blade gas distributor. The upper of the room is set with a square or circle hole as an outlet after separation of the gas and liquid, air entering in the symmetrically two-dimensional guide two rows blade gas distributor, enters the top filling layer after being evenly distributed, and liquid flows to the lower gas-liquid distributor by the guide hole on the bottom of the liquid collecting base of the separating room. The invention has a lower towering space, economic equipment investment, lower mounting requirement, wide operation range, strong applicability. The distributor is used in two-phase feeding or flashing feeding device of the filling tower of each specification under the course of gas-liquid mass transfer, separating, heat transfer operation in the industrial production.

Description

technical field [0001] The invention belongs to the technical field of distributors, in particular to a liquid pre-distributor with gas distribution function. Background technique [0002] The gas distribution in the packed tower, especially the large-diameter packed tower, is actually very important. The uneven distribution of gas not only leads to the decrease of the mass transfer efficiency of the packing, but also produces the "Matthew effect" due to its bias flow, which in turn causes the liquid bias flow that originally flows uniformly in the opposite direction. Sufficient attention should be paid to the design of material and gas distribution devices. The gas phase distribution device is to make the gas phase enter the tower initially to achieve stability and uniformity under different conditions. Gas distributors mainly include tube type, row tube type, gap type, double row blade type, double tangential circulation type and so on. [0003] In the liquid feeding de...

AI Technical Summary

Problems solved by technology

It is aimed at the large liquid flow rate, the liquid flowing down from the gas-liquid distributor directly falls on the liquid surface of the liquid receiving plate, and the kinetic energy is large, so that the liquid level on the liquid receiving plate fluctuates greatly, thus causing the groove plate liquid distributor The liquid flow rate of the upper spray holes fluctuates greatly, is uneven, and is greatly different from the design value, resulting in uneven liquid distribution and low mass transfer efficiency, so that it can be improved and solved

However, for the mixed feed process containing gas, if this patent is used, the rising gas can only be distributed in the annular range along the periphery of the tower wall, while there is no gas in the center of the tower, the gas distribution is uneven, and due to the rising area of ​​the annular gas Small resulting in very high ascending gas velocity, the formation of entrainment of mist and the decrease of mass transfer efficiency in the packed tower

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