Reverse osmosis water purification system, control method and water purification equipment

Abstract

The invention discloses a reverse osmosis water purification system, a control method and water purification equipment. The water purification system comprises a water inlet pipeline, a booster pump, a first reverse osmosis filter element, a second reverse osmosis filter element, a bypass pipeline, a wastewater pipeline, a water outlet pipeline, a backflushing pipeline, a first valve, a second valve, a third valve, a fourth valve and a fifth valve. The booster pump is arranged on the water inlet pipeline; the water inlet side of the first reverse osmosis filter element is communicated with the water inlet pipeline; the water inlet side of the second reverse osmosis filter element is communicated with the water inlet side of the first reverse osmosis filter element. After the water purification equipment is restarted, a user can directly drink water when the water purification equipment just starts to produce water, drinking is not affected even if the water purification equipment is shut down for a long time, and the water use experience of the user is improved. Meanwhile, a large number of inorganic salt ions and other substances attached to the reverse osmosis membrane of the second reverse osmosis filter element can be washed down in the backwashing process and discharged through a wastewater pipeline, and the filtering effect and speed of the reverse osmosis membrane are improved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a reverse osmosis water purification system, a control method, and water purification equipment. Background technique [0002] Reverse osmosis (Reverse Osmosis, RO) is a water treatment technology commonly used at present, and is widely used in various water purifiers and other water purification equipment. Molecules will pass through the reverse osmosis membrane, while inorganic salt ions, bacteria, viruses, organic matter and colloids are intercepted by the reverse osmosis membrane, so as to realize the purification of raw water and obtain relatively pure drinking water. [0003] When the reverse osmosis water purification equipment is not in use for a long time, some inorganic salt ions and small molecular weight substances on the raw water side of the reverse osmosis membrane will gradually pass through the reverse osmosis membrane, so that the total dissolved solids ...

AI Technical Summary

Problems solved by technology

This has led to the re-use of reverse osmosis water purification equipment. When the water was first produced, the TDS concentration of the effluent was high and the water quality was poor, which affected the user's water experience; A large amount of inorganic salt ions and other substances are attached to the surface, which reduces the filtration effect and speed of the reverse osmosis membrane

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