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Partition net for improving pollution-proof capacity of roll-type membrane component

A roll-type membrane and module technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve problems such as membrane flux reduction, pollution, separation membrane failure, etc.

Active Publication Date: 2014-02-12
SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the production process, the main reason for the failure of the separation membrane is that the membrane is polluted by impurities in the raw material side fluid, which reduces the membrane flux.

Method used

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  • Partition net for improving pollution-proof capacity of roll-type membrane component
  • Partition net for improving pollution-proof capacity of roll-type membrane component
  • Partition net for improving pollution-proof capacity of roll-type membrane component

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Embodiment Construction

[0022] figure 1 -4 shows the structural schematic diagrams of the partition nets according to the first to third embodiments of the present invention respectively. The use of the spacer of the present invention in the spiral wound membrane module is similar to that of the commonly used spacer at present, but the spacer of the present invention has a requirement for the installation direction, that is, the direction of the flow path of the middle layer of the spacer must be in line with the flow direction of the raw material fluid unanimous.

[0023] figure 1 The shown screen according to the first embodiment of the invention comprises a single flow-disrupting layer arranged between flow-current layers. The downstream layer includes downstream mesh strips 101 arranged in parallel along the flow direction. The spoiler comprises spoiler mesh strips 102,103. The mesh strips 102 or 103 in each baffle layer are parallel to each other and at an angle to the flow direction. Whe...

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Abstract

The invention discloses a partition net with a novel multi-layer structure of a spiral roll-type membrane component. The partition net can improve the pollution-proof capacity of the spiral roll-type membrane component, and reduce the flow resistance of a raw material flowing side of the membrane component. A method for reducing pollutants on the surface of the spiral roll-type membrane component is characterized by comprising the following steps: A, a partition net structure is utilized to divide a raw material fluid in the membrane component into two parts, namely, a membrane surface and a middle layer; B, a partition net grid structure, which is close to a separating membrane side, is used for strengthening the turbulence on the surface of the separating membrane, and the power of the fluid is utilized to enable impurities in the raw material fluid to be unlikely to stay and deposit on the surface of the separating membrane; C, the middle layer of the partition net grid structure is used for reducing the flow resistance along a flowing direction of the raw material fluid, so that impurities, which are involved in the middle layer in the step B, can flow out of the membrane component as soon as possible.

Description

technical field [0001] The invention provides a novel multi-layer structure spacer, which is used to improve the pollution resistance of the spiral wound membrane module and properly reduce the raw material of the membrane module by being involved in the manufacturing process of the spiral wound membrane module. Flow resistance on the flow side. It can be widely used in the technical field of membrane treatment. Background technique [0002] Membrane separation technology has been widely used in many fields such as pharmaceuticals, water treatment and food processing. [0003] Figure 5 The composition of the membrane coil (or membrane element) in the spiral wound membrane module in the prior art is shown. like Figure 5 As shown, the structure of the spiral-wound membrane module is composed of a "double-layer structure" assembly with a porous support material in the middle and membranes on both sides. Three of the edges are sealed and bonded to form a film bag, and the o...

Claims

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Application Information

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IPC IPC(8): B01D63/10
Inventor 傅岚高峰杨松林任春波丁平
Owner SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
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