Method for manufacturing spiral-wound reverse osmosis membrane component
A reverse osmosis membrane and roll-type technology, which is applied in the direction of reverse osmosis, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problem of low efficiency of the number of cutting operations, and achieve consumption saving, edge material loss reduction, and production efficiency increased effect
Active Publication Date: 2014-11-26
A O SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO LTD
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Problems solved by technology
Therefore, for the current method of producing reverse osmosis membrane elements, there is still a problem of low efficiency due to the large number of cutting operations.
Method used
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[0028] Exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
[0029] image 3 It is a schematic diagram of applying glue on a reverse osmosis membrane according to an embodiment of the present invention. Such as image 3 As shown, five tapes 31, 32, 33, 34, 35 are coated on the reverse osmosis membrane 30, and one tape 36 intersects with the tapes 31 to 35. The reverse osmosis membrane has been laid on the roll film machine with m...
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Disclosed is a process for manufacturing a spirally wound reverse osmosis membrane element, which can reduce loss of scrap materials and improve the production efficiency. The process comprises: coating on a reverse osmosis membrane (30) N adhesive tapes (31, 32, 33, 34, 35) extending in parallel to the direction of rolling, and an adhesive tape (36) intersecting the N adhesive tapes (31, 32, 33, 34, 35) at an end on one and the same side of the N adhesive tapes (31, 32, 33, 34, 35), N representing a positive integer of not less than 3; rolling the reverse osmosis membrane (30) from the opposite side (38) to the one and the same side so as to form a reverse osmosis membrane bar (40); cutting the reverse osmosis membrane bar (40) to obtain N-1 reverse osmosis membrane bars having both ends provided with the adhesive tapes (31, 32, 33, 34, 35); and manufacturing the reverse osmosis membrane bars having both ends provided with the adhesive tapes (31, 32, 33, 34, 35) into a spirally wound reverse osmosis membrane element.
Description
technical field [0001] The invention relates to a method for manufacturing a spiral-wound reverse osmosis membrane element. Background technique [0002] The spiral-wound reverse osmosis membrane element, also known as the spiral-wound reverse osmosis membrane element, is a common element in water treatment technology. It generally has a cylindrical pressure vessel as the shell, and a central tube with multiple holes inside it. And alternately laminated multi-layer reverse osmosis membranes and guide cloth rolled on the central tube. The central tube is connected with the two ends of the housing through connectors. [0003] figure 1 It is a schematic diagram of the shape of a spiral-wound reverse osmosis membrane element according to the prior art. Such as figure 1 As shown, the shell 11 of the spiral-wound reverse osmosis membrane element (hereinafter referred to as "reverse osmosis membrane element") has a central pipe 12. When in use, raw water enters the shell from o...
Claims
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IPC IPC(8): B01D63/10B01D61/08
CPCB01D63/10B01D61/08B01D63/101
Inventor 王强侯贻直李顺勇
Owner A O SMITH (CHINA) ENVIRONMENTAL PRODUCTS CO LTD