Spiral-wound automotive permeable membrane module and preparation method thereof

Abstract

The invention discloses a spiral-wound automotive permeable membrane module and a preparation method thereof. The spiral-wound automotive permeable membrane module is characterized by comprising a plurality of leaf membrane bags; each leaf membrane bag comprises two membranes and a permeable gas flow channel screen; the front sides of the two membranes are opposite; the permeable gas flow channel screen is arranged between the two membranes; three sides of each membrane bag are sealed with an adhesive; and an opening on the fourth side of the membrane bag is formed on a pored central collection pipe; the permeable gas flow channel screen at the opening is fixed on a central pipe; a plurality of membrane bags are overlaid; meanwhile, inlet gas flow channel screens with the same sizes are inserted among the membrane bags; the membrane bags are closely wound around the central pipe in a certain direction and take the shape of a column; after a plastic film seals and fixes the membrane module, the membrane module is dried for 12 hours at a temperature of 40 to 50 DEG C and then are taken out; two ends of the membrane module are cut smoothly on a cutting machine, and the membrane module is placed on a special frame for standby application. The membrane module processed is placed into a pressure-resisting cylindrical container designed specially, the container is provided with an air inlet and two air outlets, the bottom end of the container and the central pipe of the membrane module are sealed to prevent feed gas from entering into the central pipe, a permeable gas outlet is connected with the central pipe to discharge gas passing through a membrane. The system forms a whole membrane module with the advantages of compact equipment, high packing density, good gas distribution and exchange effect, small occupied area, low raw material cost and the like; moreover, the membrane module can be used in series or in parallel, greatly improves the processing ability, is easy to be integrated with other separation equipment, and has s good application prospect in a big industry.

Description

technical field [0001] The invention belongs to the technical field of membrane separation equipment, and in particular relates to a spiral coil for recovering organic vapor volatilized into the air by using the dissolution-diffusion principle, which rolls an organic vapor separation membrane and a channel spacer around a central tube. Type separation membrane module and preparation method thereof. Background technique [0002] Gas membrane separation technology originated in the 1950s and mainly studied the technical principles of membrane separation. Since the 1980s, with the continuous emergence of processing technology and new materials, the industrial application of gas membrane separation technology has been vigorously developed. In the early days, membrane separation technology was mainly used for hydrogen recovery from tail gas in petroleum refineries and petrochemical industries. In recent years, with the research and development of high-performance membrane materia...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a spiral-wound gas permeation membrane module and its preparation method to solve the problems of bulky equipment and low separation efficiency of the existing organic vapor recovery device, and also devote itself to filling the domestic gas permeation membrane module production Whitespace

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