Filter membrane flushing method

Abstract

The invention provides a filter membrane flushing method and relates to the technical field of water purification devices. The filter membrane flushing method is used for a water purifier and comprises the steps that TDS1 and TDS2 of a filter membrane are detected, wherein the TDS1 represents the value of total dissolved solids on one side of the filter membrane, and the TDS2 represents the valueof total dissolved solids on the other side of the filter membrane; according to the TDS1 and TDS2, the filter membrane is flushed. By adopting the filter membrane flushing method, TDS values of a water body on two sides of the filter membrane are respectively monitored in working and standby states, it is judged whether the two sides of the filter membrane need flushing or not on the basis, accordingly it is ensured that the output water body conforms to the use standard, and water resources are saved.

Description

technical field [0001] The invention relates to the technical field of water purification equipment, in particular to a filter membrane washing method. Background technique [0002] The existing flushing methods of the water purifier mainly include: the automatic flushing function is activated after the water purifier is powered on; the flushing function is automatically activated after the water purifier completes the water production; the flushing function is automatically activated after the accumulated water production of the water purifier reaches the set time; The water purifier will automatically start the flushing function after the accumulative standby time reaches the set time. The above flushing methods are all subjectively set by humans, and there is no basis for judging the actual need for flushing; the water purifier has reached the flushing time but has not been flushed, resulting in a reduction in the life of the membrane filter element and a decline in water...

AI Technical Summary

Problems solved by technology

The above flushing methods are all subjectively set by humans, and there is no basis for judging the actual need for flushing; the water purifier has reached the flushing time but has not been flushed, resulting in a reduction in the life of the membrane filter element and a decline in water production capacity; the water purifier has not yet flushed Washing is also performed at all times, resulting in waste of water and electricity resources and no reasonable use

[0003] The principle of the reverse osmosis water purifier is to pressurize the tap water through the booster pump to make the tap water pass through the filter membrane, and heavy metal substances such as ions are blocked on the surface of the filter membrane, so that the water coming out of the filter membrane is pure water; When using a water purifier, the concentrated solution and the dilute solution on both sides of the filter membrane will penetrate each other to reach an equilibrium state, resulting in an increase in the TDS value of the pure water at the back end of the filter membrane, so the first cup of water produced by the water purifier fails Meet the drinking standard requirements (TDS ≥ 50mg / L), need to discharge before receiving water, there is a bad experience

[0004] In summary, the existing membrane flushing methods have unreasonable criteria for judging when to flush. On the one hand, water resources are wasted, and on the other hand, the output water often fails to meet the use standards.

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