Reverse osmosis equipment is a membrane separation technology that utilizes the function of selective (semi permeable) membranes as the driving force for pressure. When the pressure added to the system is greater than the osmotic pressure of the influent solution, water molecules continuously penetrate the membrane and flow into the central pipe through the production water channel. At one end, impurities such as ions, organic matter, bacteria, viruses, etc. in the effluent are intercepted on the inlet side of the membrane, and then flow out at the concentrated water outlet to achieve the purpose of separation and purification. Reverse osmosis equipment includes single-stage reverse osmosis and multi-stage reverse osmosis, among which single-stage reverse osmosis equipment and two-stage reverse osmosis equipment are the most commonly used. The use of two-stage reverse osmosis equipment is very extensive. Today, the editor will introduce to you the reasons for tripping faults in the use of two-stage reverse osmosis equipment. Let's understand together.

The phenomenon of repeated start stop is generally not related to soft start. The most likely cause is that the low-pressure protection switch at the inlet of the high-pressure pump or the high-pressure protection switch at the outlet of the high-pressure pump is not set properly, resulting in pressure exceeding the set value.

In general, if the set value is exceeded, the system will shut down and the alarm indicator light will light up to indicate the adjustment of system pressure, but it will not restart.

If there is no PLC directly connecting the high and low voltage switches to the circuit of the AC contactor, there will be a phenomenon of repeated start stop.

Reverse osmosis equipment should be regularly inspected and cleaned during long-term use to reduce the occurrence of problems.

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