Water purifier with double TDS probes
A water purifier and water inlet technology, which is applied in the field of water purifiers with dual TDS probes, can solve problems such as excessive waste water and unfavorable resource utilization.
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Embodiment 1
[0043] Embodiment one: see figure 1 . A mechanical drinking water faucet is added to the waste water return system, the pure water outlet end of the first reverse osmosis filter element 11a is connected to the drinking water faucet end, and the second one-way valve 15b and the first high pressure switch 16a are sequentially added to the pipeline; the first The wastewater outlet of the reverse osmosis filter element 11a is divided into two routes, one of which is directly connected to the existing kitchen faucet of the user’s home, and the third check valve 15c and the second high-pressure switch 16b are sequentially added to the pipeline; the other is the wastewater return pipeline, and the wastewater It can be returned to before the booster pump 12 through the first flow limiting valve 14a, and there is a branch on the waste water return line which is the first waste water direct discharge line Q1, which is used for waste water direct discharge when necessary. There is a fir...
Embodiment 2
[0048] Embodiment two: see figure 2 . In this embodiment, on the basis of Embodiment 1, a large flux pre-filter 17a is added to the front end of the booster pump 12. The type of the pre-filter 17a can be different forms of PP, different forms of activated carbon, ultrafiltration, nanofiltration As well as the composite filter elements of the above materials, etc., all adopt large-flux specifications, and the front outlet water flow rate is ≥8L / min, ensuring that the kitchen water is not limited, which is equivalent to tap water. The first TDS probe 19a is before the waste water return pipeline, before the pre-filter element 17a or after the pre-filter element 17a.
[0049] The user turns on the drinking water faucet: the first high-pressure switch 16a detects a pressure change, starts the booster pump 12, and starts water production; the tap water is coarsely filtered by the large-flux pre-filter 17a and flows into the first reverse osmosis filter 11a, and then divided into ...
Embodiment 3
[0053] Embodiment three: see image 3 . In this embodiment, on the basis of Embodiment 1, a rear filter element 17b is added before the second check valve 15b and the first high pressure switch 16a on the pure water outlet pipe of the first reverse osmosis filter element 11a, and the type of the rear filter element 17b Activated carbon can be in different forms. The second TDS probe 19b can be behind the first reverse osmosis filter element 11a, before or after the rear filter element 17b, the second one-way valve 15b and the first high pressure switch 16a.
[0054] The user turns on the drinking water faucet: the first high-pressure switch 16a detects a pressure change, starts the booster pump 12, and starts water production; after the tap water flows into the first reverse osmosis filter element 11a, it is divided into one path of pure water and one path of waste water, and the pure water passes through the rear filter element After 17b, it is discharged from the drinking ...
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