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The installation and removal of reverse osmosis membrane components

Sep 22, 2017

Reverse osmosis membrane installation and removal of the fact that there are pay attention to the installation and dismantling properly, may cause irreparable damage, the following membrane installation and removal of some of the precautions.

1, membrane components installed before the preparation ① flushing system piping: If the system is new, in the installation

Reverse osmosis membrane before the need to fully flush the system piping, in order to avoid debris, solvents, or residual chlorine and other contact with the membrane element. ② Clean the pressure vessel: Before installing the membrane element, clean the inside of the pressure vessel to prevent dirt or debris from depositing on the outer surface of the membrane element. It is recommended to use 25% glycerol solution in a sponge ball and use the appropriate tool to scrub back and forth inside the membrane shell to clean the inner wall of the membrane. In the cleaning process, please be careful not to allow the tool to scratch the inner surface of the membrane shell.

2. Please install the membrane element in its corresponding pressure vessel. ① usually membrane elements placed in 1% concentration of sodium bisulfite solution stored, the first application of pure water rinse.

  ② As shown in Fig. 1, there is a thick water seal on the water supply side of the membrane element. Note that the mounting direction of the sealing ring is upward. Concentrated water ring function is to ensure that all the raw water flow to the membrane element does not occur side by side. The flow rate of the raw water itself will seal the seal of the thick water seal to the inner wall of the pressure vessel. If the installation of the seal in the opposite direction, the raw water can not be closed, causing part of the raw water to the outside of the membrane element, the membrane surface flow rate decreased, resulting in scaling, thereby shortening the service life of the film. ③ Make sure that the O-ring is installed in the connection fitting position. Installation should pay attention to O-ring and connector surface without scratches or attachments. Be careful not to twist the O-ring. If the connector leaks, raw water will enter into the production of water, will lead to water quality decline. When installed on a manifold, the surface of the O-ring and the manifold is wet with pure water, distilled water or glycerin for easy installation

If the machine is normal in all aspects of the film that is completed.