A double-diaphragm cross-flow filtration flat-panel membrane module
A cross-flow filtration, flat membrane technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problems of large error in the test results of a single membrane, small effective area of the membrane, poor sealing, etc. To achieve the effect of simple and convenient installation and replacement, quick and easy replacement, and improved filtration efficiency
Active Publication Date: 2016-08-24
JIANGSU JIUMO HIGH TECH CO LTD
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Problems solved by technology
[0004] The present invention aims to solve the problems existing in the above-mentioned prior art, and provides a double-diaphragm cross-flow filtration flat-panel membrane module to solve the problem of low membrane surface velocity, large errors in test results of single-piece membranes, and small effective area of membranes in traditional flat-panel membrane modules. , poor sealing and other technical shortcomings
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[0043] The feed liquid to be concentrated enters the raw material liquid inlet 5 under the pressure of the circulating pump, a part of the feed liquid enters the upper partition plate 2, and another part of the feed liquid enters the lower partition plate 1, and then passes through the feed liquid channel 10 in the partition plate, from the four A feeding hole 11 enters the cross-flow channel 7. Driven by the shear stress of the cross-flow filtration and the pressure of the circulating pump, the clear liquid enters the permeate diversion groove 18 through the membrane pores, and flows into the permeate collection groove 8 towards the periphery. The retentate is collected in the retentate channel 16 from the four retentate holes 17 at the other end of the cross-flow channel 7 and flows out of the partition plate. The membrane tank 9 of the upper partition plate 2 and the lower partition plate 1 has a symmetrical structure, and the feed liquid channels are connected in parallel....
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The invention discloses a double-membrane cross-flow filtration flat membrane module, which comprises a support plate, a permeate diversion groove is arranged inside the support plate, the support plate is provided with a plurality of permeate channels, and the permeate channels are connected with the permeate diversion channels The spacer plate is provided with a cavity, the support plate is arranged in the cavity, the upper and lower surfaces of the support plate and the spacer plate are formed with cross-flow channels, and the side of the support plate and the spacer plate form a permeate flow collection groove, The permeate flow collecting groove is connected to the permeate diversion groove; the partition plate is provided with a raw material liquid inlet, a feed liquid channel, a permeate liquid channel and a retentate liquid channel, the feed liquid channel is connected to the raw material liquid inlet, and the feed liquid channel passes through the feed The hole communicates with one end of the cross-flow channel, the retentate channel communicates with the other end of the cross-flow channel through the retentate hole, and the permeate channel communicates with the permeate-collecting groove through the permeate outlet. The invention has the advantages of simple structure, compact design, quick and easy replacement of membranes, and parallel connection of two membranes, thereby increasing the effective area of the membranes.
Description
technical field [0001] The invention relates to a liquid concentration and separation experimental device, in particular to a compact double-membrane cross-flow filtration flat membrane module, which can be equipped with all types of flat membranes for microfiltration, ultrafiltration, nanofiltration or reverse osmosis. Background technique [0002] With the advancement of science and technology and the improvement of industrialization level, membrane separation technology has increasingly shown its important role and bright prospects in daily life. As a new separation technology, membrane separation technology has been widely used in the fields of gas separation, material separation and water treatment, among which the water treatment field has the largest demand for membrane products. Most of the existing technologies use hollow fiber membrane filter modules to concentrate and separate materials. Compared with the hollow fiber membrane, the flat membrane has the character...
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IPC IPC(8): B01D63/08
Inventor 丁晓斌孙雪飞赵祥强
Owner JIANGSU JIUMO HIGH TECH CO LTD