A drop-shaped grid-type structured packing

Abstract

The present invention discloses a waterdrop-shaped grid type structured packing, which comprises at least a layer of a packing zone comprising a plurality of horizontally-placed waterdrop-shaped special-shaped pipes connected in parallel, wherein the plurality of the horizontally-placed waterdrop-shaped special-shaped pipes connected in parallel form a plurality of parallel channels with collection sections, laryngeal orifices and dispersion sections, the cross section of the waterdrop-shaped special-shaped pipe is the waterdrop shape, the top portion and the lower portion of the waterdrop-shaped special-shaped pipe are the arc shapes, the radius of the arc on the top portion is larger than the radius of the arc on the lower portion, and the outer periphery of the waterdrop-shaped special-shaped pipe is provided with a plurality of parallel and projecting bosses. Compared with the existing structured packing, the waterdrop-shaped grid type structured packing of the present invention has advantages of high mass transfer efficiency, simple structure, small size, fouling resistance, low pressure drop and less liquid foam entrainment. In addition, the waterdrop-shaped grid type structured packing of the present invention is suitable for the gas-liquid two-phase mass transfer and reaction processes, especially for the dust removal and desulfurization treatment of flue gas and process exhaust gas, and can be widely used in the fields of petrochemical industry, environmental protection and the like.

Description

technical field [0001] The invention relates to a drop-shaped grid-type structured packing, which is suitable for dust removal and gas-liquid two-phase mass transfer and reaction process, especially for dust removal and desulfurization treatment of flue gas and process tail gas, and can be widely used in petrochemical, environmental protection and other fields. Background technique [0002] As a traditional gas and liquid mass transfer equipment, the packed tower has developed greatly in recent years. Due to the continuous improvement of the packing structure, the packed tower has replaced the traditional plate tower in many production processes. At present, the packing used in the packed tower in the gas and liquid mass transfer equipment is mainly divided into two categories: random packing and structured packing. Random packing is a granular body with a certain geometric shape and size, which is generally piled up in the tower in a random manner, also known as random pack...

AI Technical Summary

Problems solved by technology

The above-mentioned first kind of packing uses concave-convex units near the corrugated surface of the packing to achieve a certain degree of gas-liquid contraction and expansion movement, but the manufacturing process of the packing is complicated, the packing strength is poor, and the interfacial resistance of the packing layer cannot be eliminated; the second packing is the same as ordinary The structure of the structured packing is basically the same, and only the local deformation of the packing is used to generate the local turbulence of the gas and liquid at the peaks and valleys of the packing, which has no substantial effect on improving the packing efficiency.

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