Water production system

Abstract

The present disclosure provides a water production system comprising: a water supply line configured to supply water to be treated; the first reverse osmosis device is provided with a first water production inlet end and a first water production end, and the first water production inlet end is selectively communicated with the water supply pipeline; the degassing device is configured to remove gas contained in water, and a water inlet of the degassing device is selectively communicated with the first water producing and producing end; the first water tank is selectively communicated with the water outlet of the degassing device; the second reverse osmosis device is provided with a second water production inlet end and a second water production end, and the second water production inlet end is selectively communicated with the water supply pipeline and the first water tank; and the second water tank is selectively communicated with the first water producing and water producing end and the second water producing and water producing end. The water production system provided by the utility model can realize at least one of the following targets: adjusting the pH value in a manner of replacing dosing, and realizing uninterrupted water production.

Description

Technical Field

[0001] The present disclosure relates to the field of water treatment technology, and in particular to a water production system. Background Art

[0002] RO membrane uses ultra-low pressure reverse osmosis technology to purify tap water. Combined with a carefully designed filtration and adsorption system, it can effectively remove various bacteria, viruses, impurities, odors, pesticide residues, heavy metal ions and other substances that are harmful to health in the water. It can also remove carcinogens and pathogens such as chloroform and oxygen that cannot be removed by conventional means.

[0003] However, the reverse osmosis pure water machine in the related technology needs to adjust the pH value by adding drugs, and the user needs to manage the drugs, which poses certain safety risks of hazardous chemicals; and when the equipment fails or requires maintenance, it must be shut down, making it difficult to produce water uninterruptedly. Utility Model Content

[0004] The present disclosure aims to provide a water production system to achieve at least one of the following objectives: adjusting the pH value by replacing the addition of chemicals to achieve uninterrupted water production.

[0005] The present disclosure provides a water production system, comprising:

[0006] a water supply line configured to supply water to be treated;

[0007] a first reverse osmosis device having a first water production inlet and a first water production end, wherein the first water production inlet is selectively connected to the water supply pipeline;

[0008] a degassing device configured to remove gas contained in water, wherein the water inlet of the degassing device is selectively connected to the first water production end;

[0009] a first water tank selectively connected to the water outlet of the degassing device;

[0010] A second reverse osmosis device has a second water production inlet end and a second water production end, wherein the second water production inlet end is selectively connected to the water supply pipeline and the first water tank; and

[0011] The second water tank is selectively connected to the first water production end and the second water production end.

[0012] In some embodiments, the water production system has a first operating mode. In the first operating mode, the first water production inlet is connected to the water supply pipeline, the water inlet of the degassing device is connected to the first water production end, the first water tank is connected to the water outlet of the degassing device, the second water tank is disconnected from the first water production end, the second water production inlet is disconnected from the water supply pipeline, the second water production inlet is connected to the first water tank, and the second water tank is connected to the second water production end.

[0013] In some embodiments, the water production system further has at least one of a second operating mode, a third operating mode, and a fourth operating mode, wherein:

[0014] In the second operating mode, the first water production inlet is connected to the water supply pipeline, the water inlet of the degassing device is disconnected from the first water production end, the second water tank is connected to the first water production end, the second water production inlet is disconnected from the water supply pipeline, and the second water tank is disconnected from the second water production end;

[0015] In the third operating mode, the first water production inlet is disconnected from the water supply pipeline, the water inlet of the degassing device is disconnected from the first water production end, the second water tank is disconnected from the first water production end, the second water production inlet is connected to the water supply pipeline, and the second water tank is connected to the second water production end;

[0016] In the fourth operating mode, the first water production inlet is connected to the water supply pipeline, the water inlet of the degassing device is disconnected from the first water production end, the second water tank is connected to the first water production end, the second water production inlet is connected to the water supply pipeline, and the second water tank is connected to the second water production end.

[0017] In some embodiments, further comprising:

[0018] a first water inlet valve, disposed between the water supply pipeline and the first water production inlet end, and configured to control whether the water supply pipeline and the first water production inlet end are connected; and / or

[0019] A first water production valve is provided between the first water production end and the water inlet of the degassing device, and is configured to control whether the first water production end and the water inlet of the degassing device are connected; and / or

[0020] A first water production bypass valve is provided between the first water production end and the second water tank, and is configured to control whether the first water production end and the second water tank are in communication; and / or

[0021] A second water inlet valve is provided between the water supply pipeline and the second water inlet end, and is configured to control whether the water supply pipeline and the second water inlet end are connected; and / or

[0022] The second water production valve is provided between the second water production and control end and the second water tank, and is configured to control whether the second water production and control end is in communication with the second water tank.

[0023] In some embodiments,

[0024] The first water tank is provided with a first water level detection device, which is configured to detect the water level of the first water tank, so as to determine whether the first water production end is connected with the water supply pipeline and whether the first water production end is connected with the first water tank according to the water level of the first water tank; and / or

[0025] The second water tank is provided with a second water level detection device, which is configured to detect the water level of the second water tank to determine whether the second water production end is connected with the water supply pipeline and whether the second water production end is connected with the second water tank according to the water level of the second water tank.

[0026] In some embodiments,

[0027] The water production system further includes a cleaning pipeline and / or a drainage pipeline, wherein the cleaning pipeline is configured to supply a cleaning liquid required for cleaning the first reverse osmosis device and / or the second reverse osmosis device, and the drainage pipeline is configured to discharge waste liquid, wherein the waste liquid includes at least one of the following: concentrated water produced by the first reverse osmosis device, concentrated water produced by the second reverse osmosis device, the cleaning liquid after cleaning the first reverse osmosis device, and the cleaning liquid after cleaning the second reverse osmosis device;

[0028] The first reverse osmosis device has a first cleaning water inlet and a first wastewater discharge end, the first cleaning water inlet is selectively connected to the cleaning pipeline, and the discharge pipeline is selectively connected to the first wastewater discharge end;

[0029] The second reverse osmosis device has a second cleaning water inlet and a second wastewater discharge end. The second cleaning water inlet is selectively connected to the cleaning pipeline, and the discharge pipeline is selectively connected to the second wastewater discharge end.

[0030] In some embodiments, the water production system has a fifth operating mode. In the fifth operating mode, the first water production inlet is disconnected from the water supply pipeline, the water inlet of the degassing device is disconnected from the first water production end, the second water tank is disconnected from the first water production end, the second water production inlet is disconnected from the water supply pipeline, the second water tank is disconnected from the second water production end, the cleaning pipeline is connected to the first cleaning water inlet, the first wastewater drainage end is connected to the drainage pipeline, the cleaning pipeline is connected to the second cleaning water inlet, and the second wastewater drainage end is connected to the drainage pipeline.

[0031] In some embodiments, at least one of the following is further included:

[0032] a first cleaning valve, disposed between the cleaning pipeline and the first cleaning water inlet, configured to control whether the cleaning pipeline and the first cleaning water inlet are connected; and / or

[0033] a first wastewater valve, disposed between the first wastewater drain end and the drain pipe, and configured to control whether the first wastewater drain end and the drain pipe are connected; and / or

[0034] a second cleaning valve, disposed between the cleaning pipeline and the second cleaning water inlet, configured to control whether the cleaning pipeline and the second cleaning water inlet are connected; and / or

[0035] The second wastewater valve is provided between the second wastewater drainage end and the drainage pipeline, and is configured to control whether the second wastewater drainage end is connected to the drainage pipeline.

[0036] In some embodiments, the method further includes at least one filter disposed in the water supply line.

[0037] In some embodiments, a filter bypass line is further included, and the filter bypass line includes at least one bypass branch corresponding to at least one of the filters and arranged in parallel.

[0038] In the water production system provided herein, the first and second reverse osmosis units are used to remove the vast majority of inorganic salts and nearly all organic matter, microorganisms, and other substances from the water, thereby reducing water conductivity, improving water purity, and ensuring water quality. The degassing unit is used to remove gases such as carbon dioxide from the water.

[0039] The first reverse osmosis device can be selectively connected to the water supply pipeline, the degassing device, the first water tank and the second water tank 50, and the second reverse osmosis device can be selectively connected to the water supply pipeline and the second water tank. By changing the connection relationship between the reverse osmosis device, the degassing device and the water tank, different water production modes can be formed.

[0040] By connecting the degassing device to the first reverse osmosis device and the second reverse osmosis device respectively, the pH value of the water can be increased instead of adding chemicals. Under the premise of ensuring the water permeability and desalination rate of the second reverse osmosis device, the safety risks can be reduced.

[0041] When any one of the first reverse osmosis device and the second reverse osmosis device fails or requires maintenance, uninterrupted water production can be achieved by connecting the other one of the two reverse osmosis devices to the first water tank or the second water tank.

[0042] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0044] Figure 1 Schematic diagram of the structure of the water production system of some embodiments of the present disclosure.

[0045] In the accompanying drawings, the reference numerals represent:

[0046] 10. First reverse osmosis device; 11. First safety filter; 12. First water inlet valve; 13. First water production valve; 14. First water production bypass valve; 15. First wastewater valve; 16. First cleaning valve; 17. First flushing valve; 18. First high-pressure pump;

[0047] 20. Degassing device; 21. Carbon removal device; 22. Gas regulating valve;

[0048] 30. First water tank;

[0049] 40. Second reverse osmosis device; 41. Second safety filter; 42. Second water inlet valve; 43. Second water production valve; 45. Second wastewater valve; 46. Second cleaning valve; 47. Second flushing valve; 48. Second high-pressure pump;

[0050] 50. Second water tank;

[0051] 60. Water supply pipeline; 61. Filter bypass pipeline; 62. First bypass pipeline; 63. Second bypass pipeline;

[0052] 70. Soft water tank;

[0053] 81. Quartz sand filter; 82. First activated carbon filter; 83. Second activated carbon filter;

[0054] 90. Cleaning pipeline; 91. Drain pipeline; 92. System drain valve; 93. Cleaning drain valve. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0056] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, these techniques, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, rather than as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0057] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0058] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0059] refer to Figure 1An embodiment of the present disclosure provides a water production system, including a water supply pipeline 60, a first reverse osmosis device 10, a degassing device 20, a first water tank 30, a second reverse osmosis device 40 and a second water tank 50.

[0060] The water supply line 60 is configured to supply water to be treated. The first reverse osmosis device 10 has a first water production inlet and a first water production end, the first water production inlet being selectively connected to the water supply line 60. The degassing device 20 is configured to remove gas contained in water, the water inlet of the degassing device 20 being selectively connected to the first water production end. The first water tank 30 is selectively connected to the water outlet of the degassing device 20. The second reverse osmosis device 40 has a second water production inlet and a second water production end, the second water production inlet being selectively connected to the water supply line 60 and the first water tank 30. The second water tank 50 is selectively connected to the first water production end and the second water production end.

[0061] The first reverse osmosis device 10 and the second reverse osmosis device 40 may each include one or more reverse osmosis membrane shells, such as Figure 1 In the illustrated embodiment, the first reverse osmosis unit 10 includes three reverse osmosis membrane shells, and the second reverse osmosis unit 40 includes two reverse osmosis membrane shells. Optionally, the water production system further includes a first safety filter 11 and a first high-pressure pump 18, with the first safety filter 11, the first high-pressure pump 18, and the reverse osmosis membrane shells of the first reverse osmosis unit 10 arranged sequentially along the direction of water flow. Optionally, the water production system further includes a second safety filter 41, the second high-pressure pump 48, and the reverse osmosis membrane shells of the second safety filter 41, the second high-pressure pump 48, and the second reverse osmosis unit 40 arranged sequentially along the direction of water flow.

[0062] Optionally, the water production system includes a carbon removal device 21 and a gas regulating valve 22 which are correspondingly arranged in the degassing device 20 .

[0063] In the water production system provided by the embodiments of the present disclosure, the first reverse osmosis unit 10 and the second reverse osmosis unit 40 are used to remove the vast majority of inorganic salts and nearly all organic matter, microorganisms, etc. from the water, thereby reducing the water's conductivity, improving its purity, and ensuring the quality of the produced water. The degassing unit 20 is used to remove gases such as carbon dioxide from the water.

[0064] The first reverse osmosis device 10 can be selectively connected to the water supply pipeline 60, the degassing device 20, the first water tank 30 and the second water tank 50, and the second reverse osmosis device 40 can be selectively connected to the water supply pipeline 60 and the second water tank 50. By changing the connection relationship between the reverse osmosis device, the degassing device and the water tank, different water production modes can be formed.

[0065] By connecting the degassing device 20 to the first reverse osmosis device 10 and the second reverse osmosis device 40 respectively, the pH value of the water can be increased instead of adding chemicals, and safety hazards can be reduced while ensuring the water permeability and desalination rate of the second reverse osmosis device 40.

[0066] When any one of the first reverse osmosis device 10 and the second reverse osmosis device 40 fails or requires maintenance, uninterrupted water production can be achieved by connecting the other one of the two reverse osmosis devices to the first water tank 30 or the second water tank 50.

[0067] In some embodiments, the water production system further includes at least one filter disposed in the water supply pipeline 60 .

[0068] Optionally, the at least one filter includes a quartz sand filter 81 , a first activated carbon filter 82 , and a second activated carbon filter 83 , which are sequentially arranged along the water flow direction of the water supply pipe 60 .

[0069] At least one filter is located upstream of the first reverse osmosis device 10 and the second reverse osmosis device 40 along the water flow direction, and can serve as a pre-treatment device to remove suspended matter and fine particles in the water.

[0070] Optionally, the water production system further includes a soft water tank 70 , which is selectively connected to the water supply pipeline 60 and is disposed upstream of at least one filter along the water flow direction, and is configured to provide softened water to the water supply pipeline 60 .

[0071] In some embodiments, the water production system further includes a filter bypass pipeline 61 , and the filter bypass pipeline 61 includes at least one bypass branch corresponding to and arranged in parallel with at least one filter.

[0072] In this embodiment, by controlling the on / off state of at least one bypass branch of the filter bypass pipeline, the corresponding filter can be enabled or disabled, thereby flexibly adjusting the number and type of filters used in the water production system according to water quality requirements.

[0073] The following combination Figure 1 The following further describes the operating modes that can be achieved by the water production systems of some embodiments of the present disclosure.

[0074] In some embodiments, the water production system has a first operating mode. In the first operating mode, the first water production inlet is connected to the water supply pipeline 60, the water inlet of the degassing device 20 is connected to the first water production end, the first water tank 30 is connected to the water outlet of the degassing device 20, the second water tank 50 is disconnected from the first water production end, the second water production inlet is disconnected from the water supply pipeline 60, the second water production inlet is connected to the first water tank 30, and the second water tank 50 is connected to the second water production end.

[0075] In the first operating mode, the first reverse osmosis device 10, the degassing device 20 and the second reverse osmosis device 40 all participate in water treatment. The water treatment process is as follows: the water flows through the water supply pipeline 60, the first reverse osmosis device 10, and the degassing device 20 in sequence and enters the first water tank 30. The water after the carbon dioxide is removed by the degassing device 20 can further pass through the second reverse osmosis device 40 and enter the second water tank 50.

[0076] In the first operating mode, water undergoes reverse osmosis treatment, pH adjustment and reverse osmosis treatment again, resulting in higher water quality.

[0077] In some embodiments, the water production system further has at least one of a second operating mode, a third operating mode, and a fourth operating mode, wherein, in the second operating mode, the first water production inlet end is connected to the water supply pipeline 60, the water inlet of the degassing device 20 is disconnected from the first water production end, the second water tank 50 is connected to the first water production end, the second water production inlet end is disconnected from the water supply pipeline 60, and the second water tank 50 is disconnected from the second water production end; in the third operating mode, the first water production inlet end is disconnected from the water supply pipeline 60, the degassing device 20 is disconnected from the first water production end. The water inlet of the device 20 is disconnected from the first water production end, the second water tank 50 is disconnected from the first water production end, the second water production inlet is connected to the water supply pipeline 60, and the second water tank 50 is connected to the second water production end; in the fourth operating mode, the first water production inlet is connected to the water supply pipeline 60, the water inlet of the degassing device 20 is disconnected from the first water production end, the second water tank 50 is connected to the first water production end, the second water production inlet is connected to the water supply pipeline 60, and the second water tank 50 is connected to the second water production end.

[0078] In the second operating mode, the first reverse osmosis device 10 participates in water treatment, the degassing device 20 and the second reverse osmosis device 40 do not participate in water treatment, and the water treatment process is as follows: water flows through the water supply pipeline 60 and the first reverse osmosis device 10 in sequence and enters the second water tank 50.

[0079] In the third operating mode, the first reverse osmosis device 10 and the degassing device 20 do not participate in water treatment, and the second reverse osmosis device 40 participates in water treatment. The water treatment process is as follows: water flows through the water supply pipeline 60 and the second reverse osmosis device 40 in sequence and enters the second water tank 50.

[0080] In the fourth operating mode, the first reverse osmosis device 10 and the second reverse osmosis device 40 participate in water treatment, and the degassing device 20 does not participate in water treatment. The water treatment process is as follows: after passing through the water supply pipeline 60, the water flow is divided into two paths, passing through the first reverse osmosis device 10 and the second reverse osmosis device 40 respectively and entering the second water tank 50.

[0081] The water production system can switch operating modes based on water production demand, maintenance requirements for corresponding devices in the system, and fault conditions. For example, if the second reverse osmosis unit 40 fails or requires maintenance, the water production system can be placed in the second operating mode, while still producing water through the first reverse osmosis unit 10. If the first reverse osmosis unit 10 fails or requires maintenance, the water production system can be placed in the third operating mode, while still producing water through the second reverse osmosis unit 40.

[0082] In some embodiments, the water production device further includes at least one of the following: a first water inlet valve 12 , a first water production valve 13 , a first water production bypass valve 14 , a second water inlet valve 42 , and a second water production valve 43 .

[0083] The first water inlet valve 12 is disposed between the water supply line 60 and the first water production inlet, and is configured to control whether the water supply line 60 and the first water production inlet are connected. The first water production valve 13 is disposed between the first water production end and the water inlet of the degassing device 20, and is configured to control whether the first water production end and the water inlet of the degassing device 20 are connected. The first water production bypass valve 14 is disposed between the first water production end and the second water tank 50, and is configured to control whether the first water production end and the second water tank 50 are connected. The second water inlet valve 42 is disposed between the water supply line 60 and the second water production inlet, and is configured to control whether the water supply line 60 and the second water production inlet are connected. The second water production valve 43 is disposed between the second water production end and the second water tank 50, and is configured to control whether the second water production end and the second water tank 50 are connected.

[0084] Optionally, the water production system also includes a first bypass pipeline 62 and a second bypass pipeline 63, the two ends of the first bypass pipeline 62 are respectively connected to the first water production end and the second water tank, the first water production bypass valve 14 is arranged on the first bypass pipeline 62, the two ends of the second bypass pipeline 63 are respectively connected to the water supply pipeline 60 and the second water production inlet end, and the second water inlet valve 42 is arranged on the second bypass pipeline 63.

[0085] In some embodiments, the first water tank 30 is provided with a first water level detection device, which is configured to detect the water level of the first water tank 30, so as to determine whether the first water inlet end is connected to the water supply pipeline 60 and whether the first water production end is connected to the first water tank 30 according to the water level of the first water tank 30, and / or, the second water tank 50 is provided with a second water level detection device, which is configured to detect the water level of the second water tank 50, so as to determine whether the second water inlet end is connected to the water supply pipeline 60 and whether the second water production end is connected to the second water tank 50 according to the water level of the second water tank 50.

[0086] This embodiment can realize the linkage between the water level of the first water tank 30 and whether the first reverse osmosis device 10 produces water, and the water level of the second water tank 50 and whether the second reverse osmosis device 40 produces water, thereby realizing uninterrupted water production. When the water level of the first water tank 30 is lower than the first set value, the first water production inlet end is connected to the water supply pipeline 60, and the first water production end is connected to the first water tank 30, so that the first reverse osmosis device 10 produces water to the first water tank 30. When the water level of the first water tank 30 is higher than the second set value, the first water production inlet end is disconnected from the water supply pipeline 60, and the first water production end is disconnected from the first water tank 30, so that the first reverse osmosis device 10 stops producing water. When the water level of the second water tank 50 is lower than the third set value, the second water production inlet end is connected to the water supply pipeline 60, and the second water production end is connected to the second water tank 50, so that the second reverse osmosis device 40 produces water to the second water tank 50. When the water level of the second water tank 50 is lower than the fourth set value, the second water production inlet end is disconnected from the water supply pipeline 60, and the second water production end is disconnected from the second water tank 50, so that the second reverse osmosis device 40 stops producing water.

[0087] In some embodiments, the water production system further includes a cleaning pipeline 90 and / or a drain pipeline 91. The cleaning pipeline 90 is configured to supply cleaning fluid required for cleaning the first reverse osmosis device 10 and / or the second reverse osmosis device 40. The drain pipeline 91 is configured to discharge waste fluid, which includes at least one of the following: concentrated water produced by the first reverse osmosis device 10, concentrated water produced by the second reverse osmosis device 40, cleaning fluid after cleaning the first reverse osmosis device 10, and cleaning fluid after cleaning the second reverse osmosis device 40. The first reverse osmosis device 10 has a first cleaning water inlet and a first wastewater outlet, the first cleaning water inlet selectively communicating with the cleaning pipeline 90, and the drain pipeline 91 selectively communicating with the first wastewater outlet. The second reverse osmosis device 40 has a second cleaning water inlet and a second wastewater outlet, the second cleaning water inlet selectively communicating with the cleaning pipeline 90, and the drain pipeline 91 selectively communicating with the second wastewater outlet.

[0088] Optionally, the drainage pipeline 91 has a first drainage branch and a second drainage branch, and the water production system also includes a system drain valve 92 arranged on the first drainage branch and a cleaning drain valve 93 arranged on the second drainage branch, wherein the system drain valve 92 is configured to discharge the concentrated water produced by the first reverse osmosis device 10 and / or the second reverse osmosis device 40, and the cleaning drain valve 93 is configured to discharge the cleaning liquid after cleaning the first reverse osmosis device 10 and / or the second reverse osmosis device 40.

[0089] The cleaning fluid can be delivered to at least one of the first reverse osmosis device 10 and the second reverse osmosis device 40 through the cleaning pipeline 90 , thereby removing dirt on the reverse osmosis membrane surfaces of the first reverse osmosis device 10 and the second reverse osmosis device 40 and preventing clogging of the membrane elements.

[0090] In some embodiments, the water production system has a fifth operating mode. In the fifth operating mode, the first water production inlet end is disconnected from the water supply pipeline 60, the water inlet of the degassing device 20 is disconnected from the first water production end, the second water tank 50 is disconnected from the first water production end, the second water production inlet end is disconnected from the water supply pipeline 60, the second water tank 50 is disconnected from the second water production end, the cleaning pipeline 90 is connected to the first cleaning water inlet end, the first wastewater drainage end is connected to the drainage pipeline 91, the cleaning pipeline 90 is connected to the second cleaning water inlet end, and the second wastewater drainage end is connected to the drainage pipeline 91.

[0091] In the fifth operating mode, the first and second reverse osmosis devices 10 and 40 can be cleaned together. The cleaning process is as follows: Cleaning fluid flows through cleaning pipeline 90 into the first and second reverse osmosis devices 10 and 40, respectively. After cleaning the first and second reverse osmosis devices 10 and 40, the cleaning fluid flows into drain pipeline 91 and is discharged therefrom.

[0092] In some embodiments, the water production system further includes at least one of the following: a first purge valve 16 , a first wastewater valve 15 , a second purge valve 46 , and a second wastewater valve 45 .

[0093] The first purge valve 16 is disposed between the purge line 90 and the first purge water inlet, and is configured to control whether the purge line 90 and the first purge water inlet are connected. The first wastewater valve 15 is disposed between the first wastewater drain and the drain line 91, and is configured to control whether the first wastewater drain and the drain line 91 are connected. The second purge valve 46 is disposed between the purge line 90 and the second purge water inlet, and is configured to control whether the purge line 90 and the second purge water inlet are connected. The second wastewater valve 45 is disposed between the second wastewater drain and the drain line 91, and is configured to control whether the second wastewater drain and the drain line 91 are connected.

[0094] Optionally, the water production system further includes a first flush valve 17 and a second flush valve 47 , wherein the first flush valve 17 is arranged in parallel with the first wastewater valve 15 , and the second flush valve 47 is arranged in parallel with the second wastewater valve 45 .

[0095] The working status of each valve in each operating mode mentioned above can be seen in Table 1.

[0096] Table 1 Working status of each valve in different operation modes of the water system

[0097]

[0098] In Table 1, “○” indicates that the corresponding valve is in the open state; “■” indicates that the corresponding valve is in the closed state; and “☆” indicates that the corresponding valve is in the automatic adjustment state, that is, in the current mode, it can be automatically opened or closed according to the actual working conditions of the water production system.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. A water production system, characterized in that: include: a water supply line (60) configured to supply water to be treated; A first reverse osmosis device (10) having a first water production inlet end and a first water production end, wherein the first water production inlet end is selectively connected to the water supply pipeline (60); A degassing device (20) is configured to remove gas contained in water, and a water inlet of the degassing device (20) is selectively connected to the first water production end; a first water tank (30) selectively connected to the water outlet of the degassing device (20); a second reverse osmosis device (40) having a second water production inlet and a second water production end, wherein the second water production inlet is selectively connected to the water supply pipeline (60) and the first water tank (30); and The second water tank (50) is selectively connected to the first water production end and the second water production end.

2. The water production system according to claim 1, characterized in that: The water production system has a first operating mode. In the first operating mode, the first water production inlet is connected to the water supply pipeline (60), the water inlet of the degassing device (20) is connected to the first water production end, the first water tank (30) is connected to the water outlet of the degassing device (20), the second water tank (50) is disconnected from the first water production end, the second water production inlet is disconnected from the water supply pipeline (60), the second water production inlet is connected to the first water tank (30), and the second water tank (50) is connected to the second water production end.

3. The water production system according to claim 1, characterized in that: The water production system also has at least one of a second operation mode, a third operation mode and a fourth operation mode, wherein: In the second operating mode, the first water production inlet is connected to the water supply pipeline (60), the water inlet of the degassing device (20) is disconnected from the first water production end, the second water tank (50) is connected to the first water production end, the second water production inlet is disconnected from the water supply pipeline (60), and the second water tank (50) is disconnected from the second water production end; In the third operating mode, the first water production inlet is disconnected from the water supply pipeline (60), the water inlet of the degassing device (20) is disconnected from the first water production end, the second water tank (50) is disconnected from the first water production end, the second water production inlet is connected to the water supply pipeline (60), and the second water tank (50) is connected to the second water production end; In the fourth operating mode, the first water production inlet is connected to the water supply pipeline (60), the water inlet of the degassing device (20) is disconnected from the first water production end, the second water tank (50) is connected to the first water production end, the second water production inlet is connected to the water supply pipeline (60), and the second water tank (50) is connected to the second water production end.

4. The water production system according to claim 1, characterized in that: Also includes: a first water inlet valve (12), disposed between the water supply pipeline (60) and the first water production inlet end, configured to control whether the water supply pipeline (60) and the first water production inlet end are in communication; and / or a first water production valve (13), disposed between the first water production end and the water inlet of the degassing device (20), and configured to control whether the first water production end and the water inlet of the degassing device (20) are in communication; and / or a first water production bypass valve (14), disposed between the first water production end and the second water tank (50), configured to control whether the first water production end and the second water tank (50) are in communication; and / or a second water inlet valve (42), disposed between the water supply pipeline (60) and the second water production inlet end, and configured to control whether the water supply pipeline (60) and the second water production inlet end are in communication; and / or The second water production valve (43) is provided between the second water production end and the second water tank (50), and is configured to control whether the second water production end and the second water tank (50) are in communication.

5. The water production system according to any one of claims 1 to 4, characterized in that: The first water tank (30) is provided with a first water level detection device, the first water level detection device being configured to detect the water level of the first water tank (30), so as to determine whether the first water production inlet end is in communication with the water supply pipeline (60) and whether the first water production end is in communication with the first water tank (30) according to the water level of the first water tank (30); and / or The second water tank (50) is provided with a second water level detection device, which is configured to detect the water level of the second water tank (50) so as to determine whether the second water production inlet end is connected to the water supply pipeline (60) and whether the second water production end is connected to the second water tank (50) based on the water level of the second water tank (50).

6. The water production system according to any one of claims 1 to 4, characterized in that: The water production system further comprises a cleaning pipeline (90) and / or a drainage pipeline (91), wherein the cleaning pipeline (90) is configured to supply a cleaning liquid required for cleaning the first reverse osmosis device (10) and / or the second reverse osmosis device (40), and the drainage pipeline (91) is configured to discharge waste liquid, wherein the waste liquid comprises at least one of the following: concentrated water produced by the first reverse osmosis device (10), concentrated water produced by the second reverse osmosis device (40), the cleaning liquid after cleaning the first reverse osmosis device (10), and the cleaning liquid after cleaning the second reverse osmosis device (40); The first reverse osmosis device (10) has a first cleaning water inlet and a first wastewater discharge end, the first cleaning water inlet is selectively connected to the cleaning pipeline (90), and the discharge pipeline (91) is selectively connected to the first wastewater discharge end; The second reverse osmosis device (40) has a second cleaning water inlet and a second wastewater discharge. The second cleaning water inlet is selectively connected to the cleaning pipeline (90), and the discharge pipeline (91) is selectively connected to the second wastewater discharge.

7. The water production system according to claim 6, characterized in that: The water production system has a fifth operating mode. In the fifth operating mode, the first water production inlet is disconnected from the water supply pipeline (60), the water inlet of the degassing device (20) is disconnected from the first water production end, the second water tank (50) is disconnected from the first water production end, the second water production inlet is disconnected from the water supply pipeline (60), the second water tank (50) is disconnected from the second water production end, the cleaning pipeline (90) is connected to the first cleaning water inlet, the first wastewater drainage end is connected to the drainage pipeline (91), the cleaning pipeline (90) is connected to the second cleaning water inlet, and the second wastewater drainage end is connected to the drainage pipeline (91).

8. The water production system according to claim 6, characterized in that: Also includes: a first cleaning valve (16), disposed between the cleaning pipeline (90) and the first cleaning water inlet, configured to control whether the cleaning pipeline (90) and the first cleaning water inlet are connected; and / or a first wastewater valve (15), disposed between the first wastewater drain end and the drain pipe (91), configured to control whether the first wastewater drain end is in communication with the drain pipe (91); and / or a second cleaning valve (46), disposed between the cleaning pipeline (90) and the second cleaning water inlet, configured to control whether the cleaning pipeline (90) and the second cleaning water inlet are connected; and / or The second wastewater valve (45) is provided between the second wastewater drainage end and the drainage pipeline (91), and is configured to control whether the second wastewater drainage end is in communication with the drainage pipeline (91).

9. The water production system according to any one of claims 1 to 4, characterized in that: It also includes at least one filter arranged on the water supply pipeline (60).

10. The water production system according to claim 9, characterized in that: It also includes a filter bypass pipeline (61), wherein the filter bypass pipeline (61) includes at least one bypass branch corresponding to at least one of the filters and arranged in parallel.

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