Mounting method for large-diameter packed tower internals

Abstract

The invention discloses a mounting method for large-diameter packed tower internals. The mounting method comprises the following steps of: (1) mounting a barrel body, namely horizontally putting a hollow barrel section on a welded roller carrier, and mounting rounding dies for rounding, lifting and turning over the barrel section close to an upper opening and a lower opening outside the barrel; (2) mounting internal supporting pieces, namely accurately drawing mounting position lines of the respective internals on the inner wall of the barrel, and then welding the internal supporting pieces; (3) mounting a collector, namely hoisting a collector bottom ring to the opening of the barrel body through a crane, moving the collector bottom ring to a mounting position thereof, welding the whole collector bottom ring to the wall of the barrel after gradually welding and positioning the collector bottom ring one point by one point, and horizontally and fixedly arranging collector blade branch blocks on the bottom ring; (4) mounting packing, hoisting the barrel body to keep the barrel body upright, hoisting the packing into the barrel to be fixedly mounted in a supported manner, wherein the barrel section is required to be hoisted and then horizontally arranged on the roller carrier before scattered packing is mounted, arranging a packing mounting frame in the barrel, and then putting the scattered packing into the barrel one by one until all pieces of packing are mounted; and (5) mounting a distributor, hoisting the barrel section to keep the barrel section upright again, and hoisting the whole distributor into the barrel to keep the distributor in right place.

Description

technical field [0001] The invention relates to a method for installing internal parts of a packed tower with a diameter of more than 4.9 m, and belongs to the technical field of packed tower manufacture. Background technique [0002] The core machine of the air separation equipment—the structured packing in the structured packing rectification tower is divided into two types: whole block and block, and each plate is a whole piece of structured packing. When the diameter is greater than 1.3 meters, vertical packing is generally used. Assembled; and the structured packing composed of blocks for each plate requires horizontal assembly (due to the vertical assembly of the block packing, the packing will not be squeezed in the diameter direction of the tower body, and the packing tower will be shaken after horizontal transportation, which will make the tower The sub-block packing inside moves to sink, and there is a unilateral penetration gap between the upper packing and the to...

AI Technical Summary

Problems solved by technology

[0002] The core machine of the air separation equipment—the structured packing in the structured packing rectification tower is divided into two types: whole block and block, and each plate is a whole piece of structured packing. When the diameter is greater than 1.3 meters, vertical packing is generally used. Assembled; and the structured packing composed of blocks for each plate requires horizontal assembly (due to the vertical assembly of the block packing, the packing will not be squeezed in the diameter direction of the tower body, and the packing tower will be shaken after horizontal transportation, which will make the tower The sub-block packing inside moves to sink, and there is a unilateral penetration gap between the upper packing and the tower body. When the packed tower is installed vertically and used, it will cause the gas and liquid participating in the rectification in the packed tower to short-circuit respectively and lose the rectification function)

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