In-tower liquid distribution device for small rectifying tower

Abstract

An in-tower liquid distribution device for a small rectifying tower is composed of an upper distributor and a lower distributor, the upper distributor is arranged under a feeding pipe and composed of a hammer-shaped cap and a cone, the cap is fixedly connected with the cone through a connecting support block, the cone is fixed in the middle in the tower through a support block at the bottom, the support block is welded to the inner wall of the tower through a left supporting strip and a right supporting strip, and the lower distributor is arranged over a filler fixing piece at the bottom in the tower. The in-tower liquid distribution device is characterized in that a feeding device is designed in a split mode, a good liquid mixing function is achieved, the shielding area is small, the resistance is low, and installation is easy.

Description

technical field [0001] The invention relates to a liquid distribution device in a small rectification tower, which belongs to the field of small rectification towers. Background technique [0002] In recent years, more and more rare gas extraction and isotope separation have been developed in the field of rectification towers, which makes the application and development of high-efficiency packing continue to progress, and the research and development of small and ultra-small rectification tower internals are also continuously carried out. Conventional The feeding device has a certain liquid mixing function, but its shielding area is large, the height space occupied by the tower is large, and the resistance is large; it is extremely difficult to install in a rectification tower with a small diameter in a small tower with this structure, and the liquid distribution device and the lower The packing is independent of each other, and needs to be welded separately during assembly....

AI Technical Summary

Problems solved by technology

[0002] In recent years, more and more rare gas extraction and isotope separation have been developed in the field of rectification towers, which makes the application and development of high-efficiency packing continue to progress, and the research and development of small and ultra-small rectification tower internals are also continuously carried out. Conventional The feeding device has a certain liquid mixing function, but its shielding area is large, the height space occupied by the tower is large, and the resistance is large; it is extremely difficult to install in a rectification tower with a small diameter in a small tower with this structure, and the liquid distribution device and the lower The packing is independent of each other, and needs to be welded separately during assembly. The tower body section of this structure is generally above the connecting pipe, far away from the position of the welding internal parts, and for the ultra-small diameter rectification tower among the small diameters, the two Welding can only be done by arc welding, and there are likely to be welding bumps and spatters in the tower. The cleanliness of the tower is not guaranteed. The structure of the liquid distribution device is simple, and there is only one circle of liquid distribution. Limited, packing efficiency is difficult to improve; this design can only be applied in small-diameter rectification towers in small towers, and cannot be used in slightly larger-diameter rectification towers

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