Waterway system for improving flux of RO (Reverse Osmosis) water purifier

Abstract

The utility model discloses a waterway system for improving RO water purifier flux, which comprises a reverse osmosis filter element, the reverse osmosis filter element is provided with a water inlet end, a water outlet end and a waste water end, the waste water end of the reverse osmosis filter element is connected with a waste water pipe, the waste water pipe is provided with a waste water valve, and the reverse osmosis filter element is provided with a water inlet and a water outlet. The waste water valve is used for intermittently opening the waste water end according to set time. The waste water valve is closed in the water taking process, only pure water is generated and no waste water is discharged in the operation process, the flux of the reverse osmosis filter element can be improved, and for the booster pump, the conveyed water quantity is smaller than that in normal operation, so that the operation pressure of the booster pump can be improved, and the service life of the booster pump is prolonged. And the flow of the pure water is increased by increasing the pressure, so that the flux in the water taking process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification systems, in particular to a water channel system for improving the flux of an RO water purifier. Background Art

[0002] The flow rate of a reverse osmosis water purifier is one of its important performance characteristics and user concerns. Water purifiers with high flow rate have better user experience and are more popular with consumers.

[0003] Currently, most of the high-flux reverse osmosis water purifiers on the market are achieved by using high-flux reverse osmosis membranes and high-flux booster pumps. There are existing methods to increase the flux of reverse osmosis water purifiers:

[0004] 1: Single reverse osmosis membrane, by increasing the membrane area to achieve a higher flux;

[0005] 2: Increase the number of reverse osmosis membranes;

[0006] 3: Equipped with a large-volume booster pump;

[0007] The above method has corresponding disadvantages:

[0008] 1: The roll area of ​​a single membrane has an industrial upper limit. If the roll area of ​​the membrane is to be increased, the cost of the process and filter bottle will increase significantly;

[0009] 2: Increasing the number of reverse osmosis filter elements will increase the size of the machine;

[0010] 3: Large flow pumps are accompanied by high noise.

[0011] Due to the limitations of membrane flux, industrial film rolling conditions and machine volume, using this method to further increase flux will lead to a sharp increase in costs. The method of increasing machine flux by using large-flux membranes and pumps has reached a bottleneck.

[0012] Therefore, it is essential to design a new water system to improve the flux of RO water purifier. Summary of the Invention

[0013] In view of the above problems of the existing RO water purifier flux, the present invention aims to provide a water system for improving the flux of the RO water purifier, controlling cost, noise and machine volume, and improving the flux of the reverse osmosis water purifier.

[0014] The specific technical solutions are as follows:

[0015] A water system for improving the flux of an RO water purifier includes: a reverse osmosis filter element, wherein the reverse osmosis filter element has a water inlet end, a water outlet end, and a wastewater end; a wastewater pipe is connected to the wastewater end of the reverse osmosis filter element; a wastewater valve is installed on the wastewater pipe; the wastewater valve is used to intermittently open the wastewater end according to a set time.

[0016] The water system for improving the flux of the RO water purifier further includes a controller, which is connected to the wastewater valve signal.

[0017] The water system for improving the flux of the RO water purifier further includes a booster pump, wherein the booster pump and the reverse osmosis filter element are sequentially connected in series.

[0018] The water system for improving the flux of the RO water purifier further includes: a pre-filter element, wherein the pre-filter element, the booster pump and the reverse osmosis filter element are connected in series in sequence.

[0019] The water system for improving the flux of the RO water purifier further includes: a post-filter element, and the pre-filter element, the booster pump, the reverse osmosis filter element and the post-filter element are connected in series in sequence.

[0020] The water system for improving the flux of the RO water purifier further includes a heating module, and the water outlet end of the post-filter element is connected to the water inlet end of the heating module through a first pipe.

[0021] In the above-mentioned water system for improving the flux of the RO water purifier, the water outlet of the heating module is connected to a hot water pipeline, and the hot water pipeline has a hot water outlet.

[0022] In the above-mentioned water system for improving the flux of the RO water purifier, the first pipeline is connected to a normal temperature water pipeline, and the normal temperature water pipeline has a normal temperature water outlet.

[0023] In the above-mentioned water system for improving the flux of the RO water purifier, both the hot water outlet and the normal temperature water outlet are provided with an opening and closing valve.

[0024] In the above-mentioned water system for improving the flux of the RO water purifier, the water inlet end of the pre-filter is connected to the water inlet pipeline.

[0025] Compared with the prior art, the above technical solution has the following positive effects:

[0026] The utility model closes the wastewater valve during the water intake process, and only pure water is produced without wastewater discharge during operation, which can improve the flux of the reverse osmosis filter element. For the booster pump, the amount of water delivered is smaller than that in normal operation, so the operating pressure of the booster pump will increase. The increase in pressure will increase the flow rate of pure water and thus improve the flux during the water intake process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a water system for improving the flux of an RO water purifier according to the present invention;

[0028] In the attached figure: 1. Reverse osmosis filter element; 2. Wastewater pipe; 3. Wastewater valve; 4. Booster pump; 5. Pre-filter element; 6. Post-filter element; 7. Heating module; 8. First pipeline; 9. Hot water pipeline; 10. Normal temperature water pipeline; 11. Opening and closing valve; 12. Water inlet pipeline; 13. Return pipeline. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0030] like Figure 1 As shown, a water system for improving the flux of an RO water purifier in a preferred embodiment is shown, comprising: a reverse osmosis filter element 1, the reverse osmosis filter element 1 having an inlet end, a water outlet end and a wastewater end, a wastewater pipe 2 connected to the wastewater end of the reverse osmosis filter element 1, a wastewater valve 3 installed on the wastewater pipe 2, and the wastewater valve 3 is used to intermittently open the wastewater end according to a set time.

[0031] Furthermore, as a preferred embodiment, the water system for improving the flux of the RO water purifier further includes a controller (not shown in the figure), which is connected to the wastewater valve signal and controls the opening and closing of the wastewater valve.

[0032] Furthermore, as a preferred embodiment, the water system for improving the flux of the RO water purifier further includes: a booster pump 4, and the booster pump 4 and the reverse osmosis filter element 1 are connected in series in sequence.

[0033] The utility model closes the wastewater valve during the water intake process, and only pure water is produced without wastewater discharge during operation, which can improve the flux of the reverse osmosis filter element. For the booster pump, the amount of water delivered is smaller than that in normal operation, so the operating pressure of the booster pump will increase. The increase in pressure will increase the flow rate of pure water and thus improve the flux during the water intake process.

[0034] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0035] The present invention also has the following implementation methods based on the above:

[0036] In further embodiments of the present invention, please continue to refer to Figure 1 As shown, the water system for improving the flux of the RO water purifier further includes: a pre-filter element 5, the pre-filter element 5, the booster pump 4 and the reverse osmosis filter element 1 are connected in series in sequence.

[0037] In a further embodiment of the present invention, the water system for improving the flux of the RO water purifier further includes: a post-filter element 6, a pre-filter element 5, a booster pump 4, a reverse osmosis filter element 1 and a post-filter element 6 connected in series in sequence.

[0038] In a further embodiment of the present invention, the water system for improving the flux of the RO water purifier further includes: a heating module 7 , and the water outlet end of the post-filter 6 is connected to the water inlet end of the heating module 7 through a first pipe 8 .

[0039] In a further embodiment of the present invention, the water outlet of the heating module 7 is connected to a hot water pipe 9 , and the hot water pipe 9 has a hot water outlet.

[0040] In a further embodiment of the present invention, a normal temperature water pipeline 10 is connected to the first pipeline 8, and the normal temperature water pipeline 10 has a normal temperature water outlet.

[0041] In a further embodiment of the present invention, an opening and closing valve 11 is provided at both the hot water outlet and the normal temperature water outlet.

[0042] In a further embodiment of the present invention, the water inlet end of the pre-filter element 5 is connected to the water inlet pipeline 12 .

[0043] During the user's water collection process: Existing machines produce pure water and simultaneously discharge wastewater during the water collection process. In the present invention, the wastewater valve 5 is closed during the water collection process, and only pure water is produced during operation without wastewater discharge. For the booster pump 7, the amount of water delivered is smaller than in normal operation, so the operating pressure of the booster pump 7 increases. This increased pressure increases the flow rate of pure water, thereby improving the flux during the water collection process.

[0044] After the user has finished drawing water: Conventional machines flush the system with pure water after a period of time to remove any remaining concentrated water. With the new system, after the user has finished drawing water, the concentrated water valve is opened and the system is flushed with tap water for a period of time to remove all the concentrated water in the system. The system is then flushed with pure water again to remove all the remaining concentrated water.

[0045] The RO water purifier does not discharge wastewater during the water production process, or discharges very little wastewater (the pure water to waste ratio is greater than 9:1). When the water purifier stops producing water, open the wastewater valve and flush the system with tap water for a period of time. After the tap water flushing is completed, use pure water backflow to flush the system to solve the problem of too high TDS in the first cup of water.

[0046] This utility model is designed for home use scenarios. It uses different operating modes at different times to increase the water purifier's throughput while the user is using it, thereby improving the consumer experience. For example, an existing 1000-gallon RO water purifier can provide 1200 gallons of pure water flow during the user's water collection process after using the operating mode of this invention, thereby improving the user experience.

[0047] Preferably, the water outlet of the heating module 7 is connected to the water inlet of the reverse osmosis filter element 1 through a return line 13 .

[0048] Preferably, the water outlet of the heating module 7 is connected to the water inlet of the pre-filter 5 through a return line 13 .

[0049] The hot water discharged from the water outlet of the heating module 7 is mixed with the room temperature water at the water inlet of the reverse osmosis filter element 1 through the return pipe 13 to form mixed water, and the mixed water flows through the reverse osmosis filter element 1.

[0050] The utility model returns the water at the water outlet of the heating module 7 to the front of the water inlet of the reverse osmosis filter element 1 to increase the temperature of the water inlet of the reverse osmosis filter element 1, thereby increasing the flux of the reverse osmosis filter element 1.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A water system for improving the flux of RO water purifier, characterized in that: include: A reverse osmosis filter element, wherein the reverse osmosis filter element has a water inlet end, a water outlet end, and a wastewater end. The wastewater end of the reverse osmosis filter element is connected to a wastewater pipe, and a wastewater valve is installed on the wastewater pipe. The wastewater valve is used to intermittently open the wastewater end according to a set time; The wastewater valve is closed during the water intake process, and only pure water is produced during operation without wastewater discharge; After the water intake is completed, the wastewater valve is opened, the water system is flushed, and all the wastewater is discharged.

2. The waterway system for improving the flux of RO water purifier according to claim 1, characterized in that: Also includes: A controller is connected to the wastewater valve signal.

3. The waterway system for improving the flux of RO water purifier according to claim 1, characterized in that: Also includes: A booster pump is provided, wherein the booster pump and the reverse osmosis filter element are sequentially connected in series.

4. The waterway system for improving the flux of RO water purifier according to claim 3, characterized in that: Also includes: A pre-filter element, the pre-filter element, the booster pump and the reverse osmosis filter element are sequentially connected in series.

5. The water system for improving the flux of RO water purifier according to claim 4, characterized in that: Also includes: The post-filter element, the pre-filter element, the booster pump, the reverse osmosis filter element and the post-filter element are sequentially connected in series.

6. The waterway system for improving the flux of RO water purifier according to claim 5, characterized in that: Also includes: The heating module, the water outlet end of the post-filter element and the water inlet end of the heating module are connected through a first pipeline.

7. The water system for improving the flux of RO water purifier according to claim 6, characterized in that: The water outlet end of the heating module is connected to a hot water pipeline, and the hot water pipeline is provided with a hot water outlet.

8. The waterway system for improving the flux of RO water purifier according to claim 7, characterized in that: The first pipeline is connected to a normal temperature water pipeline, and the normal temperature water pipeline has a normal temperature water outlet.

9. The waterway system for improving the flux of RO water purifier according to claim 8, characterized in that: The hot water outlet and the normal temperature water outlet are both provided with opening and closing valves.

10. The water system for improving the flux of RO water purifier according to claim 4, characterized in that: The water inlet end of the pre-filter is connected to the water inlet pipeline.

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