Introduction to the installation method of FRP membrane shell
The specific steps for the installation of the FRP membrane shell:
1. Carefully check the engineering drawings of the installed membrane shell, and clarify the key dimensions and technical requirements;
2. Design and manufacture the bracket according to the engineering drawings and system capacity. The design of the bracket should not only consider the support of the membrane shell, but also ensure the support structure of the piping and pipe network;
3. Check whether the membrane casing to be installed is intact, focusing on checking the inner surface of the membrane casing and the sealing surface of the original/concentrated nozzle;
4. Install the membrane casing on the positioned saddle, ensure that there is enough space for installing and unloading the membrane elements at both ends of the membrane casing, and align the original/concentrated water outlet at the end of the membrane casing;
Note: The installation of the membrane casing should avoid stress concentration as much as possible. With the raw/concentrated water end fixed, the membrane shell should be centered on the bracket.
5. Install the strap, pass the strap bolt through the mounting hole of the bracket, use a wrench to screw the bolt into the nut of the strap, and the torque can reach 3~5N.m, so that the strap can firmly fix the membrane shell on the saddle up, and at the same time give enough expansion space for the membrane shell;
Note: Please do not install the strapping bolts too tightly to avoid damage to the shell; be sure to leave enough expansion space for the membrane shell to limit the expansion of the membrane shell and damage the membrane shell; the straps provided by Kaineng Huayu are only used when the membrane shell is running Protect and fix the membrane shell, and cannot bear various loads that may occur during transportation.
6. Connect the piping of the original/concentrated water outlet of the membrane shell;
7. Assemble the end cap;
8. Load the membrane element;
9. Install a thrust ring at the concentrated water end;
10. close the membrane shell;
11. Connect the clean water outlet pipeline;
12. Inspection, including but not limited to checking the fixed position of the membrane casing, the sealing condition of the membrane casing and the connection of the pipeline;
13. Pressurize and start the system.
The above are the installation steps and precautions of the FRP membrane shell. The membrane shell is equipped with a reverse osmosis membrane, which is used for advanced treatment of raw water, such as seawater desalination. Correct use of FRP membrane shells can help improve water production efficiency and ensure stable water quality.
