Reverse osmosis membrane tube system

Abstract

The invention relates to a reverse osmosis membrane tube system, which comprises a plurality of branched membrane tubes. Each branched membrane tube comprises a membrane shell and a plurality of reverse osmosis membrane pieces filled in the membrane shell; and the each branched membrane tube also comprises a raw water inlet, a fresh water outlet and a concentrated water outlet. The reverse osmosis membrane tube system is characterized in that raw water flows in from the raw water inlet of one of the plurality of branched membrane tubes, and the concentrated water outlets of the plurality of branched membrane tubes are sequentially communicated in series. A hot water reverse osmosis membrane adopted in the system can tolerate hot water; because the hot water of between 70 and 85 DEG C can sterilize bacteria (namely pasteurization) in the aspect of bacteria control, the hot water reverse osmosis membrane applied in a water treatment system with bacteria control requirement such as treatment technology for bottled water and pharmaceutical water can play a role in disinfection and sterilization; and meanwhile, the anti-mixing design during designing avoids bringing the substances such as cleaning solution or bacteria and the like into a pipeline to flow out along with the effluent to pollute the effluent quality, and meets the sanitation requirement of bacteria control and the safety requirement of mixing prevention.

Description

technical field [0001] The invention relates to a reverse osmosis membrane tube system. Background technique [0002] Reverse osmosis is to use sufficient pressure to make the solvent in the solution, generally water, pass through the reverse osmosis membrane, that is, a semi-permeable membrane, and separate it. The direction is opposite to the direction of osmosis. Separate, purify and concentrate the solution. The use of reverse osmosis technology can effectively remove impurities such as dissolved salts, colloids, bacteria, viruses, bacterial endotoxins and most organic substances in water. The main separation object of the reverse osmosis membrane is the range of ions in the solution. It does not need chemicals and can effectively remove the salt in the water. The salt removal rate of the system is generally above 98%. Therefore, reverse osmosis is the most advanced, energy-saving and environmentally friendly desalination method, and has become the mainstream pre-desal...

AI Technical Summary

Problems solved by technology

[0006] The reverse osmosis membrane tube device and system in the prior art have the following disadvantages: the connection form of the raw water inlet pipe and each branch membrane tube is in parallel, and there are many branch tubes. When in use, due to the blockage of each membrane tube in the parallel connection different, resulting in uneven distribution of flow in the branch pipes, so the flow velocity is different, eventually resulting in the generation of bacteria in the pipes, which does not meet the hygienic requirements; the membrane pipes are installed horizontally, and there may be fluid accumulation in the membrane pipes; because the reverse osmosis membrane can intercept All ions, therefore, when cleaning the reverse osmosis membrane tube, the effective components of the cleaning solution can only enter and clean the raw water cavity / concentrated water cavity, and cannot enter and clean the fresh water cavity through the reverse osmosis membrane. After long-term use, the fresh water Bacteria growing in the cavity cannot be removed, which will eventually affect the quality of the effluent water; anti-mixing is not considered, and there is no anti-mixing design for the inlet / outlet of the treatment liquid

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