Membrane rolling method capable of rolling two reverse osmosis membrane elements simultaneously

Abstract

The invention discloses a membrane rolling method capable of rolling two reverse osmosis membrane elements simultaneously. The method comprises the following steps that firstly, the inner ends of two reverse osmosis membrane element water collection pipes are arranged to be opposite to each other and connected into a whole through an inner connecting rod, so that a water collection pipe combination is formed; secondly, the water collection pipe combination which is connected into a whole is fixed to a membrane rolling machine, glue application is conducted, overall rolling is conducted, and membranes are obtained, wherein in the glue application process, glue is applied to parts, corresponding to each other, of the two membrane elements separately; thirdly, after overall rolling of the membrane elements is completed, end trimming is conducted on the positions, corresponding to each other, of the two ends of the two reverse osmosis membrane element water collection pipes through an end trimming machine, so that the excessively rolled parts of the two ends of the water collection pipes are removed; finally, after end trimming is completed, the inner connecting rod is taken out, and at the moment the two membrane elements are separated completely. Compared with the prior art, by means of the membrane rolling method capable of rolling two reverse osmosis membrane elements simultaneously through the membrane rolling machine, efficiency is improved, productivity is increased, in addition, operation is convenient and fast to conduct, and the yield is slightly high.

Description

technical field [0001] The invention belongs to the technical field of reverse osmosis membrane element rolling, and in particular relates to a membrane rolling method capable of simultaneously rolling two membrane elements. Background technique [0002] As the core component of water treatment, the reverse osmosis membrane element is the key to realize the deep filtration in the field of water treatment. The reverse osmosis technology has become one of the most widely used and fastest-growing technologies in my country. Due to its high technological content, the reverse osmosis membrane The mature process system and stable quality assurance have been unanimously affirmed inside and outside the industry. It has incomparable technical advantages in schools, hospitals, boiler factories, catering industry, electronics industry, chemical industry, medicine, government agencies and many other fields. [0003] At this stage, reverse osmosis membrane elements are usually composed o...

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Problems solved by technology

[0003] At this stage, reverse osmosis membrane elements are usually composed of the following functional materials: inlet water channel cloth, product water flow channel cloth, reverse osmosis membrane, central tube and sealant. The traditional membrane element rolling process usually uses a membrane rolling machine to For the diaphragm with specified folding size, place the inlet and outlet water cloths according to the specified positions, and use sealing glue to seal the other three ends of the folded diaphragm connected to the water collection pipe (the folded end is placed at the end of the water collection pipe). Rolling to form a membrane bag for collecting produced water. At this time, the rolling of one membrane element has been completed. This membrane element rolling method has a mature process, but its rolling efficiency is low, and only one membrane element can be completed at a time. Rolling, and the previous process needs to cut the size of the inlet and outlet water cloth and the membrane used for a single membrane element in advance

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