Design method of a general-purpose industrial reverse osmosis membrane element product

A reverse osmosis membrane and design method technology, which is applied in reverse osmosis, semipermeable membrane separation, chemical instruments and methods, etc., can solve the problems of increasing the design and development cost of industrial membrane elements, increasing the difficulty of membrane element product design, and scrapping membrane products. , to achieve the effect of realizing industrialized operations, avoiding insufficient cutting size, and reducing design costs

Active Publication Date: 2022-03-04
ZHEJIANG JINMO ENVIRONMENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • Design method of a general-purpose industrial reverse osmosis membrane element product
  • Design method of a general-purpose industrial reverse osmosis membrane element product
  • Design method of a general-purpose industrial reverse osmosis membrane element product

Examples

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Embodiment 1

[0034] Example 1: In this example, the BW-8040 membrane element is designed as an example. Firstly, it is determined that the roll diameter of the designed membrane element is M=190mm, the shortening dimension Y=20mm, the total length of the membrane element Z=1016mm, and the number of pages J= On page 22, the outer diameter of the central rod H=38mm; then calculate the cutting width A of the diaphragm, the cutting width B of the water inlet screen, and the cutting width C of the water-producing guide cloth according to the formula (1); determine the selection according to the process requirements The diaphragm thickness U 1 =0.13mm, the thickness of the water inlet screen U 2 =0.8636mm, the thickness of water-producing guide cloth U 3 = 0.254mm, according to the formula (2), calculate the number of turns of the diaphragm in the winding process P = 2.46 circles; then calculate the cutting length of the diaphragm according to the formula (3) and formula (4) D = 1788mm, advance...

Embodiment 2

[0035] Embodiment 2: This embodiment takes the RW-4040 membrane element as an example to design, first determine the roll diameter of the designed membrane element M = 90mm, the shortening dimension Y = 30mm, the total length of the membrane element Z = 1016mm, the number of pages J = Page 6, the outer diameter of the central rod H=20mm; then calculate the cutting width A of the diaphragm, the cutting width B of the water inlet screen, and the cutting width C of the water-producing guide cloth according to the formula (1); determine the selection according to the process requirements The diaphragm thickness U 1 =0.13mm, the thickness of the water inlet screen U 2 =0.762mm, the thickness of water-producing guide cloth U 3 = 0.254mm, according to the formula (2), calculate the number of turns of the diaphragm during the winding process P = 4.4 circles; then calculate the cutting length of the diaphragm according to the formula (3) and formula (4) D = 1564mm, The cutting length...

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Abstract

The invention relates to a design method of a general-purpose industrial reverse osmosis membrane element product. According to the predetermined coil diameter, total length, number of sheets, outer diameter of the central rod, and the size of the exposed end of the central rod, the membrane element is calculated by a relational formula. The cutting width of the diaphragm, water inlet screen, and water production guide cloth, and then calculate the diaphragm according to the roll diameter, the outer diameter of the center rod, the number of pages, and the thickness of the diaphragm, water inlet screen, and water production guide cloth. The number of winding circles, and finally calculate the cutting length of the diaphragm, water inlet screen, and water production guide cloth according to the relational formula, and then roll and solidify to form a membrane element product after cutting according to the cut size calculated above. The present invention provides a standardized design method applicable to the design of membrane elements of various dimensions, which avoids the waste of materials, reduces the design cost, and improves the design efficiency. Even if the experience is insufficient, the design method provided by the present invention can also Products that meet the requirements can be designed, and the industrialized operation of membrane element product design has been 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/06B01D67/00B01D61/02C02F1/44
CPCB01D63/061B01D67/00B01D61/025C02F1/441
Inventor 许以农李泽东
Owner ZHEJIANG JINMO ENVIRONMENT TECH CO LTD
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