Liquid collecting and gas distributing device for large-scale flue gas desulfurization tower

Abstract

The invention provides a liquid collecting and gas distributing device for a large-scale flue gas desulfurization tower. The device consists of a cross section-variable base plate gas raising pipe, a grid beam type gas raising pipe, a double-layer type liquid baffling hood, an inclined channel type main beam with a function of guiding liquid flow, an extracting hopper, an extracting pipe and a plane expansion joint. The device has an all-welded structure for preventing liquid from escaping, the liquid falling, the liquid drop sputtering and the zero escaping of liquid fog and the lower pressure drop can be realized due to the double-layer type liquid baffling hood, the aperture ratio of the device can be increased and the convenient corrosion prevention can be carried out due to the grid beam type gas raising pipe, the impacting foaming can be reduced and the lateral line extraction quantity can be guaranteed due to the deep extracting hopper and inclined channel; a detachable sealed liquid leakage device can be completely eradicated due to the plane expansion joint, and the thermal deformation caused by high temperature can be skillfully absorbed; and the gas distributing evenness can be guaranteed due to the gas raising pipes which are geometrically and evenly distributed. The device can be widely used for the desulfurization tower in the steel mill, the electric power plant and the like, and the large-scale packed tower in the industries of oil refining, petrifaction, chemical industry and the like.

Description

technical field [0001] The invention belongs to tower internals in chemical packing towers, in particular to a liquid collecting and gas distributing device of a large-scale flue gas desulfurization tower. Background technique [0002] With the rapid development of large steel mills, large power plants, large oil refineries, large ethylene, large chemical fertilizers and other large enterprises, large tower technology has also been developed accordingly, new packing, new trays, new gas-liquid distributors and new liquid collectors Tower internal components such as gas distribution devices also emerge in endlessly. [0003] When the large-scale flue gas desulfurization tower is stopped, the escape of desulfurization agent is a technical problem that is difficult to solve for a long time in the desulfurization process or equipment. The air riser, the desulfurizer enters the air riser in the form of liquid droplets and mist. The traditional liquid collection tray is not effec...

AI Technical Summary

Problems solved by technology

The traditional liquid collection tray is not effective in preventing the above-mentioned escape phenomenon of desulfurization agent caused by sputtering, so the above-mentioned escape of desulfurization agent and similar phenomena are the main technologies that need to be solved urgently in the existing large-scale flue gas desulfurization towers or other large-scale packed towers one of the problems

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