DE29814561U1 - Water purification device with waste water recovery function - Google Patents

Description

Water purification device with wastewater recovery function

The present invention relates generally to the field of water purification devices, and more particularly to a water purification device having a waste water recovery function.

Fig. 3 shows a conventional water purification device which supplies both pure water and mineral water for drinking purposes and comprises two treatment processes. In the first process, tap water is passed through a coarse filter 20, a pump 21 and an upstream activated carbon filter 22 and a check valve 221 to a spiral membrane layer of a UF membrane 23 (ultrafine filter membrane) to remove impurities and microorganisms. The purified water containing minerals is discharged via a tap 30. In the second process, a part of the purified water containing minerals is passed through a high pressure switch 24 and a reverse osmosis waste water shut-off tap 241 into a reverse osmosis filter membrane 26 to filter out harmful minerals and mineral ions to obtain soft and ultrapure water, which is stored drop by drop in a pressure tank 29 via a check valve 291. Another high pressure tap 292 is provided to connect the pressure tank 29 to a downstream activated carbon filter 28 to remove odorous substances from the water before the water is directed to the tap 30. The waste water is discharged from the device after processing via a discharge device 27 and a waste water flush tap 271. After a certain period of time, however, the filter materials become very dirty and the water must flow through the dirty filter materials.

It is therefore the object of the present invention to eliminate the disadvantages of the above-mentioned prior art and to provide an improved water purification device with waste water recovery function.

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This object is achieved according to the invention by a water purification device, which has the features specified in the claim.

Further features and advantages of the present invention will become apparent upon reading the following description of preferred embodiments, which refers to the accompanying drawings, in which:

Fig. 1 is a perspective view of a preferred embodiment of the present invention;

Fig. 2 is a schematic view of the arrangement of the water purification device according to the present invention; and

Fig. 3 shows the already mentioned schematic view of the arrangement of a water purification device of the prior art.

As shown in Figs. 1 and 2, the present invention comprises a coarse filter 10, a mechanical flow meter 33, a low pressure faucet 30, a water inlet solenoid valve 31, a high pressure pump 21, a microcomputer tap water quality data acquisition display device
15, an activated carbon filter 12, a fine filter 32, two RO (reverse osmosis) filter membranes 231, 232 and a check valve 371, 372 connected to a pure water outlet downstream of the reverse osmosis filter membranes 231, 232. The tap water A is passed through the above-mentioned components in sequence, with the purified water from the pure water outlet being passed through a high-pressure faucet 36 and a pressure gauge into a pressure tank 29. At this point, a microcomputer pure water quality data acquisition display 16 displays the purity data of the purified water. The purified water then passes through a downstream activated carbon filter 28 and a tap 55 to flow out as pure water B for drinking purposes.

In the water purification device using reverse osmosis filter membranes 231, 232 and the downstream activated carbon filter 28, the mechanical flow meter 33 which can calculate the total flow rate and

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can add up, instead of the above-mentioned filter core between the coarse filter 10 and the water inlet solenoid valve 31. The entire water purification device forms a cyclic path for achieving resource reuse, by means of the fine filter 32 and the microcomputer tap water quality data acquisition display device 15 arranged in front of the activated carbon filter 12 to display the purity of the tap water A, in combination with the waste water treated by the reverse osmosis filter membranes 231, 232 and discharged via a take-out device 27 and a waste water flushing solenoid valve 271 or first through a check valve 373 and a cation-anion filter 34 and a check valve 374 to prevent reverse flow before connection to an outlet where the tap water A enters the coarse filter 10.

Further, as shown in Fig. 2, the tap water A is passed through the coarse filter 10, the mechanical flow meter 33, the low pressure faucet 33, the water inlet solenoid valve 31, the high pressure pump 21, the activated carbon filter 12, the fine filter 32 and the two reverse osmosis filter membranes 231, 232 to become purified water. When the water is passed through the check valves 371, 372 to be discharged as pure water for drinking, the water purity can be displayed by the microcomputer pure water quality data acquisition display device 16. The purified water is then passed through the downstream activated carbon filter 28 to flow out of the tap 55 for drinking as pure water B. The microcomputer pure water quality data acquisition display device 16 and the microcomputer tap water quality data acquisition display device 15 are assembled together, but their detection circuits are arranged in different circuits. By appropriate pressure testing, the reverse osmosis filter membrane removal rate (%) is displayed by data, thereby indicating the purity of the tap water and the purified water on a basis for determining the replacement of the reverse osmosis filter membranes.

At the same time, the purified water can be passed through a magnetic wave generator 50 to flow out of the tap 55 as pure water C.

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This pure water C is magnetized water, which can change the wavelength and frequency of water to improve blood circulation and metabolism, strengthen the immune system, reduce blood lipids, remove toxic substances from the body, balance fatty acids in the body, and the like.

Further, a waste water connection valve 39 may be provided at the inlet of the pipeline where the tap water A enters the water purification system. When the water supply is interrupted for a long period of time, the waste water which has been stored for washing purposes may be supplied to the water purification system via the waste water connection valve 39 to be purified and become pure water for drinking purposes.

Claims (1)

-5- Claim for protection Water purification device with wastewater recovery function,
marked by a coarse filter (10), a mechanical flow meter (33), a low pressure tap (30), a water inlet solenoid valve (31), a high pressure pump (21), an activated carbon filter (12), a fine filter (32), water quality data acquisition display devices (15, 16) for tap water and purified water, two reverse osmosis filter membranes (231, 232), check valves (371, 372), a downstream activated carbon filter (28), a removal device (55), a waste water flushing solenoid valve (271), a cation-anion filter (34), a magnetic wave generator (50) and a waste water connection valve (39), wherein the two reverse osmosis filter membranes (231, 232) are connected in series; the mechanical flow meter (33) is arranged between the coarse filter (10) and the low pressure tap (30) to calculate and add up the total amount of flow used; the microcomputer tap water quality data acquisition Display device (15) is installed between the high pressure pump (21) and the line of the activated carbon filter (12); the microcomputer pure water quality data acquisition display device (16) is installed between the two reverse osmosis filter membranes (231, 232) and the line of the downstream activated carbon filter (28); the cation-anion filter (34) is mounted behind the line of the extraction device (55) and the check valves (271, 272); the magnetic wave generator (50) is mounted behind the line of the downstream activated carbon filter (28); and the waste water connection valve (39) is installed at the inlet of the water purification system line.