Forming method for film shell pipe bundle in module

Abstract

The invention discloses a forming method for a film shell pipe bundle in a module. The forming method comprises the steps of S1, material inspection and storage, S2, material receiving, S3, making ofa fixing tool, S4, cutting blanking of film shell pipes, S5, spot welding of a pipe support, S6, fixing of the film shell pipes to a frame, S7, full-length welding of the pipe support and the film shell pipes, S8, spot welding of a flange, S9, full-length welding of the film shell pipes and the flange, S10, forming of an upper hole and a lower hole in the two ends of each film shell pipe, S11, welding of upper vertical branch pipes and lower vertical branch pipes to the upper holes and the lower holes correspondingly, S12, forming of connecting holes in headers, S13, welding of the headers andthe upper vertical branch pipes, S15, taking-off of connecting bolts between the pipe support and the frame, S16, weld joint 100% nondestructive examination of the welded film shell pipe bundle, andS17, cleaning and pressure testing of the film shell pipe bundle. Through the forming method, the film shell pipe bundle of higher precision can be formed.

Description

technical field [0001] The invention relates to a forming method, in particular to a forming method of a membrane shell tube bundle in a module. Background technique [0002] Membrane tube bundles can be used for oil and gas separation in the petroleum industry, and membrane tube bundles include several membrane tube bundles, each membrane tube bundle includes several longitudinal membrane tubes in rows, and the two ends of the longitudinal membrane tubes Flanges are provided, and vertical branch pipes are welded at both ends of each membrane shell tube, and the upper end of the vertical branch pipe is welded on a horizontal header. The lower part of the membrane shell tube is welded with a tube support, and a beam is arranged above the tube bundle of each layer of membrane shell tubes to facilitate the placement and support of the tube support of the membrane shell tube bundle on the upper layer. The method will be to cut and blank the single membrane shell tube first, the...

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Problems solved by technology

The lower part of the membrane shell tube is welded with a tube support, and a beam is arranged above the tube bundle of each layer of membrane shell tubes to facilitate the placement and support of the tube support of the membrane shell tube bundle on the upper layer. The method will be to cut and blank the single membrane shell tube first, then drill holes, weld the pipe support and weld the vertical branch pipe, and finally weld the header pipe and the vertical branch pipe. However, this forming method will have the following disadvantages: 1. The membrane shell tubes are arranged in rows, and the flatness is difficult to ensure; and each membrane shell tube is drilled and then arranged, it is difficult to ensure that the opening of the membrane shell tubes is vertically upward, so it is difficult to ensure that the vertical branch pipes are connected to each other Parallel, in this way, the above-mentioned error will be enlarged on the parallelism of the vertical branch pipe, and finally it is difficult to weld with the header; 2. It is also difficult to guarantee the perpendicularity between the flanges at both ends of the membrane shell tube and the membrane shell tube

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