Design method of universal industrial reverse osmosis membrane element product

Abstract

The invention relates to a design method of a universal industrial reverse osmosis membrane element product. The method comprises the following steps: according to a predetermined membrane element rolling diameter, a predetermined total length, a predetermined page number, a predetermined outer diameter of a center rod and a predetermined size of an exposed end of the center rod, calculating the cutting widths of the membrane, the water inlet separation net and the water production guide cloth of the membrane element through relational expressions; calculating the winding turns of the membraneaccording to the rolling diameter, the outer diameter of the center rod, the page number and the thicknesses of the membrane, the water inlet separation net and the water production guide cloth; andfinally calculating the cutting lengths of the membrane, the water inlet separation net and the water production guide cloth according to relational expressions, conducting cutting according to the calculated cutting sizes, and performing rolling and curing to form a membrane element product. The invention provides a standardized design method suitable for designing of membrane elements with various boundary dimensions. According to the design method provided by the invention, waste of materials is avoided, design cost is reduced, design efficiency is improved, a product meeting requirements can be designed according to the design method provided by the invention even under the condition of insufficient experience, and industrial operation of membrane element product design is realized.

Description

technical field [0001] The invention relates to the technical field of reverse osmosis membrane element rolling, in particular to a design method for a general-purpose industrial reverse osmosis membrane element product. Background technique [0002] As one of the core components of water treatment, reverse osmosis membrane elements are the key influencing factors to achieve deep filtration in the field of water treatment. Reverse osmosis technology has become one of the most widely used and fastest-growing technologies in my country. At present, reverse osmosis membrane elements are mainly It is composed of the following functional materials: water inlet screen, water production guide cloth, RO diaphragm, center rod and sealing glue. Although the composition and structure of functional materials of reverse osmosis membrane elements are roughly the same, due to the large number of specifications and models of membrane element products, there are differences in the design of t...

AI Technical Summary

Problems solved by technology

When designing membrane element products of each specification, it is necessary to tailor the size of the corresponding functional material according to its size design. When determining the size of each functional material, it is cut completely based on experience and estimation. If the cutting amount is rich, it will easily cause damage. Material waste and insufficient cutting can easily cause membrane products to be scrapped. This design method based on experience increases the difficulty of membrane element product design for R&D personnel, and also greatly increases the design and development cost of industrial membrane elements.

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