Self-cleaning water purification system and water purifier

Abstract

The utility model discloses a self-cleaning water purification system and a water purifier wherein the self-cleaning water purification system comprises: a filter module, the filter module comprises a first filter element, the first filter element is a reverse osmosis filter element, and the first filter element is used for desalting and filtering a water source to be filtered; the gas-liquid treatment module is used for carrying out gas-liquid mixing treatment on the to-be-filtered water source and the to-be-mixed gas so as to generate microbubble water; the switch module comprises a plurality of switches, and the plurality of switches are used for guiding the flowing direction of the water source to be filtered and the microbubble water; the control module is used for controlling the switch module, so that the microbubble water flows to the first filter element to clean the surface of the reverse osmosis membrane of the first filter element. Therefore, by cleaning the first filter element, the effluent quality and flow of the self-cleaning water purification system can be improved, so that the service life of the filter element is prolonged, the replacement cost of the filter element is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a self-cleaning water purification system and a water purifier. Background Art

[0002] As people's living standards continue to improve, water purifiers have gradually become a must-have in modern families. In the water purification market, reverse osmosis water purifiers have occupied a dominant position with their excellent filtering performance. Its core filtering component is the reverse osmosis filter element, which can effectively remove organic matter, grease, bacteria and ionic substances in the water to ensure the purity and safety of household water. However, these filtered substances will gradually accumulate at the concentrated water end of the reverse osmosis membrane to form sediments. Over time, these sediments will seriously affect the performance of the water purifier, including reducing the water flow rate and damaging the water quality. When faced with this problem, traditional household water purifiers often choose to directly replace the reverse osmosis filter element, which undoubtedly increases the cost of use. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first purpose of the utility model is to provide a self-cleaning water purification system, which can improve the water quality and flow rate of the self-cleaning water purification system by cleaning the first filter element, thereby increasing the service life of the filter element and reducing the replacement cost of the filter element, thereby improving the user experience.

[0004] The second purpose of the utility model is to provide a water purifier.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the utility model proposes a self-cleaning water purification system, wherein the system includes: a filtration module, the filtration module includes a first filter element, the first filter element is a reverse osmosis filter element, and the first filter element is used to desalinate and filter the water source to be filtered; a gas-liquid processing module, the gas-liquid processing module is used to perform gas-liquid mixing treatment on the water source to be filtered and the gas to be mixed to generate microbubble water; a switch module, the switch module includes a plurality of switches, and the plurality of switches are used to guide the flow direction of the water source to be filtered and the microbubble water; a control module, the control module is used to control the switch module so that the microbubble water flows to the first filter element to clean the reverse osmosis membrane surface of the first filter element.

[0006] According to the self-cleaning water purification system proposed in the example of the utility model, by cleaning the first filter element, the water quality and flow rate of the self-cleaning water purification system can be improved, thereby increasing the service life of the filter element and reducing the replacement cost of the filter element, thereby improving the user experience.

[0007] In addition, the self-cleaning water purification system according to the utility model may also include the following additional technical features:

[0008] In some examples, the gas-liquid processing module includes an ejector, a gas-liquid mixer and a first bubbler, the water inlet end of the ejector is connected to the water outlet of the water source to be filtered, the air inlet end of the ejector is connected to the air inlet of the gas to be mixed, the output end of the ejector is connected to the input end of the gas-liquid mixer, the output end of the gas-liquid mixer is connected to the input end of the first bubbler, and the output end of the first bubbler is connected to the water inlet of the first filter element.

[0009] In some examples, the switch module includes a first switch and a second switch, the first switch is arranged between the water inlet end of the ejector and the water outlet of the water source to be filtered, and the second switch is arranged between the output end of the gas-liquid mixer and the input end of the first bubbler, and the control module is used to: control the first switch and the second switch to be turned on to guide the water source to be filtered and the gas to be mixed through the ejector and the gas-liquid mixer to mix to form a gas-liquid mixture, and guide the gas-liquid mixture to the first bubbler to generate microbubble water and then flow to the first filter element.

[0010] In some examples, the system also includes a drinking water outlet and a bubble water outlet, and the control module is also used to: control the switch module to guide the water source to be filtered through the filtration module to flow to the drinking water outlet, or guide the water source to be filtered through the filtration module and the gas-liquid treatment module to flow to the bubble water outlet.

[0011] In some examples, the filtration module also includes a second filter element, which is a front and rear composite filter element, the first water inlet of the second filter element is connected to the water outlet of the water source to be filtered, the first water outlet of the second filter element is connected to the water inlet end of the ejector through the first switch, the second water inlet of the second filter element is connected to the filtered water outlet of the first filter element, and the second water outlet of the second filter element is connected to the drinking water outlet.

[0012] In some examples, the system further includes a pressure reducing valve and a booster pump, wherein the pressure reducing valve is disposed between the first switch and the water inlet end of the ejector, and the booster pump is disposed between the output end of the ejector and the input end of the gas-liquid mixer.

[0013] In some examples, the gas-liquid processing module also includes a second bubbler, and the switch module also includes a third switch. The third switch is connected in series with the second bubbler and is arranged between the output end of the gas-liquid mixer and the bubble water outlet. The control module is also used to: control the first switch and the third switch to be turned on, and the second switch to be turned off, so as to guide the water source to be filtered through the second filter element and then mix with the gas to be mixed to form a gas-liquid mixture, and guide the gas-liquid mixture to the second bubbler to generate micro-bubble water and then flow to the bubble water outlet.

[0014] In some examples, the switch module also includes a fourth switch, a fifth switch and a sixth switch, the fourth switch is arranged between the first water outlet of the second filter element and the boost pump, the fifth switch is arranged between the boost pump and the water inlet of the first filter element, and the sixth switch is arranged between the second water outlet of the second filter element and the drinking water outlet, and the control module is also used to: control the fourth switch, the fifth switch and the sixth switch to be turned on, and the first switch and the second switch to be turned off, so as to guide the water source to be filtered to flow to the drinking water outlet after being filtered through the pre-filter element of the second filter element, the first filter element and the post-filter element of the second filter element.

[0015] In some examples, the system also includes a first one-way valve and a second one-way valve, the input end of the first one-way valve is connected to the air inlet of the gas to be mixed, the output end of the first one-way valve is connected to the air inlet end of the ejector, the input end of the second one-way valve is connected to the second water outlet of the second filter element, and the output end of the second one-way valve is connected to the sixth switch.

[0016] In some examples, the first filter element further includes a wastewater outlet, and the switch module further includes a seventh switch, wherein the seventh switch is disposed at the wastewater outlet of the first filter element and is used to discharge the wastewater generated by filtration of the first filter element.

[0017] In some examples, the switch module further includes a high-voltage switch, and the control module is further used to control the high-voltage switch to turn on so as to power on the self-cleaning water purification system.

[0018] In order to achieve the above-mentioned purpose, a second embodiment of the present invention provides a water purifier, including the self-cleaning water purification system of the aforementioned embodiment of the present invention.

[0019] According to the water purifier of the embodiment of the utility model, by adopting the self-cleaning water purification system of the above embodiment of the utility model to clean the first filter element, the water quality and flow rate of the self-cleaning water purification system can be improved, thereby increasing the service life of the filter element and reducing the replacement cost of the filter element, thereby improving the user experience.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a block diagram of a self-cleaning water purification system according to an embodiment of the utility model;

[0022] Figure 2 It is a waterway structure diagram of a self-cleaning system according to a specific embodiment of the utility model;

[0023] Figure 3 It is a block diagram of a water purifier according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] Ejector 11, gas-liquid mixer 12, first bubbler 13, first filter element 14, first switch 15, second switch 16, second bubbler 17, third switch 18, second filter element 19, pressure reducing valve 21, booster pump 22, fourth switch 23, fifth switch 24, sixth switch 25, first check valve 26, second check valve 27, high pressure switch 28, seventh switch 29. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The self-cleaning water purification system and water purifier according to the embodiment of the utility model will be described below with reference to the accompanying drawings.

[0028] Figure 1 It is a block diagram of a self-cleaning water purification system according to an embodiment of the utility model.

[0029] Specifically, in some embodiments of the present invention, Figure 1 As shown, the self-cleaning water purification system 100 includes a filtering module 10 , a gas-liquid processing module 20 , a switch module 30 and a control module 40 .

[0030] The filtration module 10 includes a first filter element, which is a reverse osmosis filter element, and the first filter element is used to perform desalination filtration on the water source to be filtered; the gas-liquid processing module 20 is used to perform gas-liquid mixing processing on the water source to be filtered and the gas to be mixed to generate microbubble water; the switch module 30 includes a plurality of switches, and the plurality of switches are used to guide the flow direction of the water source to be filtered and the microbubble water; the control module 40 is used to control the switch module so that the microbubble water flows to the first filter element to clean the reverse osmosis membrane surface of the first filter element. The plurality of switches may be one switch, two switches or five switches, and the present invention may not specifically limit the number of the plurality of switches, that is, the plurality of switches are at least one switch.

[0031] Further, in some embodiments of the present invention, Figure 2 As shown, the gas-liquid processing module includes an ejector 11, a gas-liquid mixer 12 and a first bubbler 13. The water inlet end of the ejector 11 is connected to the water outlet of the water source to be filtered, the air inlet end of the ejector 11 is connected to the air inlet of the gas to be mixed, the output end of the ejector 11 is connected to the input end of the gas-liquid mixer 12, the output end of the gas-liquid mixer 12 is connected to the input end of the first bubbler 13, and the output end of the first bubbler 13 is connected to the water inlet of the first filter element 14.

[0032] Specifically, in this embodiment, the gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, and the water source to be filtered flows into the ejector 11 through the water inlet end of the ejector 11. The gas to be mixed and the water source to be filtered are preliminarily mixed in the ejector 11 and then flow out through the output end of the ejector 11, and flow into the gas-liquid mixer 12 through the input end of the gas-liquid mixer 12. After being fully mixed in the gas-liquid mixer 12, a gas-liquid mixture is formed, and the gas-liquid mixture flows out through the output end of the gas-liquid mixer 12, and flows into the first bubbler 13 through the input end of the first bubbler 13. Microbubble water is generated under the treatment of the first bubbler 13, and then flows out through the output end of the first bubbler 13, and flows into the first filter element 14 through the water inlet of the first filter element 14, so that organic matter, grease, colloid and other pollutants attached to the surface of the filter membrane of the first filter element 14 can be cleaned by microbubble water to improve the filtering capacity of the first filter element 14. Among them, the water source to be filtered can be tap water.

[0033] Furthermore, in some embodiments of the present invention, the switch module includes a first switch 15 and a second switch 16. The first switch 15 is arranged between the water inlet end of the ejector 11 and the water outlet of the water source to be filtered, and the second switch 16 is arranged between the output end of the gas-liquid mixer 12 and the input end of the first bubbler 13. The control module is used to: control the first switch 15 and the second switch 16 to open, so as to guide the water source to be filtered and the gas to be mixed through the ejector 11 and the gas-liquid mixer 12 to mix to form a gas-liquid mixture, and guide the gas-liquid mixture to the first bubbler 13 to generate micro-bubble water and then flow to the first filter element 14.

[0034] Specifically, in this embodiment, in the cleaning mode, the control module controls the first switch 15 and the second switch 16 to be turned on, the gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, the water source to be filtered flows into the water inlet of the ejector 11 after passing through the first switch 15, the gas to be mixed and the water source to be filtered are preliminarily mixed in the ejector 11 and then flow out through the output end of the ejector 11, and flow into the gas-liquid mixer 12 through the input end of the gas-liquid mixer 12, and form a gas-liquid mixture after being fully mixed in the gas-liquid mixer 12, and the gas-liquid mixture flows into the input end of the first bubbler 13 after passing through the second switch 16, and micro-bubble water is generated under the treatment of the first bubbler 13, and then output through the output end of the first bubbler 13, and flow into the first filter element 14 through the water inlet of the first filter element 14, so that organic matter, grease, colloid and other pollutants attached to the surface of the filter membrane of the first filter element 14 can be cleaned by micro-bubble water to improve the filtering capacity of the first filter element 14.

[0035] Furthermore, in some embodiments of the present invention, the system also includes a drinking water outlet and a bubble water outlet, and the control module is also used to: control the switch module to guide the water source to be filtered to flow to the drinking water outlet after being filtered by the filter module, or to guide the water source to be filtered to flow to the bubble water outlet after passing through the filter module and the gas-liquid treatment module.

[0036] Specifically, in this embodiment, in the drinking water outlet mode, the water outlet of the water source to be filtered is connected to the water inlet of the first filter element 14, the control module controls the first switch 15 and the second switch 16 to be closed, and the water source to be filtered flows into the first filter element 14 through the water inlet of the first filter element 14, and organic matter, colloids, bacteria and most ionic substances in the water source to be filtered are removed, and the filtered water source flows to the drinking water outlet through the filtered water outlet of the first filter element 14.

[0037] In the bubble water outlet mode, the gas-liquid processing module further includes a second bubbler 17, and the switch module further includes a third switch 18. The third switch 18 is connected in series with the second bubbler 17 and is arranged between the output end of the gas-liquid mixer 12 and the bubble water outlet. The control module controls the first switch 15 and the third switch 18 to be turned on, and the second switch 16 to be turned off. The gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, and the water source to be filtered flows into the water inlet of the ejector 11 after passing through the first switch 15. The gas to be mixed is discharged from the ejector 11 through the air inlet end of the ejector 11. The liquid body and the water source to be filtered are preliminarily mixed in the ejector 11 and then flow out through the output end of the ejector 11, and flow into the gas-liquid mixer 12 through the input end of the gas-liquid mixer 12. After being fully mixed in the gas-liquid mixer 12, a gas-liquid mixture is formed. The gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the second bubbler 17 through the second switch 16. Micro-bubble water is generated under the processing of the second bubbler 17, and then flows to the bubble water outlet through the output end of the second bubbler 17.

[0038] Furthermore, in some embodiments of the present invention, the filtration module also includes a second filter element 19, which is a front and rear composite filter element. The first water inlet of the second filter element 19 is connected to the water outlet of the water source to be filtered, the first water outlet of the second filter element 19 is connected to the water inlet end of the ejector 11 through the first switch 15, the second water inlet of the second filter element 19 is connected to the filtered water outlet of the first filter element 14, and the second water outlet of the second filter element 19 is connected to the drinking water outlet.

[0039] Specifically, in this embodiment, the water source to be filtered flows into the second filter element 19 through the first water inlet of the second filter element 19, and flows out from the first water outlet of the second filter element 19 under the filtering action of the second filter element 19, and flows to the water inlet end of the ejector 11 through the first switch 15.

[0040] The filtered water flowing out of the filtered water outlet of the first filter element 14 flows into the second filter element 19 through the second water inlet of the second filter element 19, flows out from the second water outlet of the second filter element 19 under the filtering action of the second filter element 19, and then flows to the drinking water outlet.

[0041] Furthermore, in some embodiments of the present invention, the system also includes a pressure reducing valve 21 and a booster pump 22, the pressure reducing valve 21 is arranged between the first switch 15 and the water inlet end of the ejector 11, and the booster pump 22 is arranged between the output end of the ejector 11 and the input end of the gas-liquid mixer 12.

[0042] Specifically, in this embodiment, in the cleaning mode, the control module is used to control the first switch 15 and the second switch 16 to be turned on, the gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, the water source to be filtered flows into the second filter element 19 through the first water inlet of the second filter element 19, and flows out from the first water outlet of the second filter element 19 under the filtering action of the second filter element 19, and then flows into the pressure reducing valve 21 through the first switch 15, and flows into the water inlet of the ejector 11 with a relatively low pressure water flow under the control of the pressure reducing valve 21, the gas to be mixed and the water source filtered by the second filter element 19 are preliminarily mixed in the ejector 11, and then flow out through the output end of the ejector 11, and through the gas The input end of the liquid mixer 12 flows to the booster pump 22, and flows into the gas-liquid mixer 12 under the action of the booster pump 22. After being fully mixed in the gas-liquid mixer 12, a gas-liquid mixture is formed. The gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the first bubbler 13 through the second switch 16. Micro-bubble water is generated under the treatment of the first bubbler 13, and then output through the output end of the first bubbler 13, and flows into the first filter element 14 through the water inlet of the first filter element 14, so that organic matter, grease, colloid and other pollutants attached to the surface of the filter membrane of the first filter element 14 can be cleaned by micro-bubble water to improve the filtering capacity of the first filter element 14.

[0043] Furthermore, in some embodiments of the utility model, the gas-liquid processing module also includes a second bubbler 17, and the switch module also includes a third switch 18. The third switch 18 is connected in series with the second bubbler 17 and is arranged between the output end of the gas-liquid mixer 12 and the bubble water outlet. The control module is also used to: control the first switch 15 and the third switch 18 to be turned on, and the second switch 16 to be turned off, so as to guide the water source to be filtered through the second filter element 19 and then mix with the gas to be mixed to form a gas-liquid mixture, and guide the gas-liquid mixture to the second bubbler 17 to generate micro-bubble water and then flow to the bubble water outlet.

[0044] Specifically, in this embodiment, in the bubble water outlet mode, the gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, the water source to be filtered flows into the second filter element 19 through the first water inlet of the second filter element 19, and flows out from the first water outlet of the second filter element 19 under the filtering action of the second filter element 19, and then flows into the ejector 11 through the first switch 15, the gas to be mixed and the water source filtered by the second filter element 19 are preliminarily mixed in the ejector 11 and then flow out through the output end of the ejector 11, and flow into the gas-liquid mixer 12 through the input end of the gas-liquid mixer 12, and form a gas-liquid mixture after being fully mixed in the gas-liquid mixer 12, and the gas-liquid mixture flows into the input end of the second bubbler 17 after passing through the third switch 18, and generates micro-bubble water under the processing of the second bubbler 17, and then flows to the bubble water outlet through the output end of the second bubbler 17.

[0045] Optionally, in this embodiment, in the bubble water outlet mode, the gas to be mixed enters the ejector 11 through the air inlet end of the ejector 11, the water source to be filtered flows into the second filter element 19 through the first water inlet of the second filter element 19, and flows out from the first water outlet of the second filter element 19 under the filtering action of the second filter element 19, and then flows into the pressure reducing valve 21 through the first switch 15, and flows into the water inlet of the ejector 11 with a relatively low pressure water flow under the control of the pressure reducing valve 21, and the gas to be mixed and the water source filtered by the second filter element 19 are discharged in the ejector 11. After preliminary mixing in 11, it flows out through the output end of the ejector 11, and flows to the booster pump 22 through the input end of the gas-liquid mixer 12, and flows into the gas-liquid mixer 12 under the action of the booster pump 22. After being fully mixed in the gas-liquid mixer 12, a gas-liquid mixture is formed, and the gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the second bubbler 17 through the second switch 16. Micro-bubble water is generated under the processing of the second bubbler 17, and then flows to the bubble water outlet through the output end of the second bubbler 17.

[0046] Furthermore, in some embodiments of the present invention, the switch module also includes a fourth switch 23, a fifth switch 24 and a sixth switch 25, the fourth switch 23 is arranged between the first water outlet of the second filter element 19 and the boost pump 22, the fifth switch 24 is arranged between the boost pump 22 and the water inlet of the first filter element 14, and the sixth switch 25 is arranged between the second water outlet of the second filter element 19 and the drinking water outlet. The control module is also used to: control the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned on, and the first switch 15 and the second switch 16 to be turned off, so as to guide the water source to be filtered to flow to the drinking water outlet after being filtered through the pre-filter element of the second filter element 19, the first filter element 14 and the post-filter element of the second filter element 19.

[0047] Specifically, in this embodiment, the second filter element is a front and rear composite filter element, and the front and rear composite filter element includes a pre-filter element and a post-filter element that are independent of each other. In the drinking water outlet mode, the control module controls the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned on, and the first switch 15 and the second switch 16 are turned off. The water source to be filtered flows into the pre-filter element through the water inlet of the pre-filter element, flows out from the water outlet of the pre-filter element under the filtering action of the pre-filter element, and flows to the booster pump 22 through the fourth switch 23. Under the boosting action of the booster pump 22, it flows to the water inlet of the first filter element 14 through the fifth switch 24, flows from the filtered water outlet of the first filter element 14 to the water inlet of the post-filter element under the filtration of the first filter element 14, flows out from the water outlet of the post-filter element under the filtering action of the post-filter element, and then flows to the drinking water outlet through the sixth switch 25.

[0048] Optionally, in this embodiment, in the drinking water outlet mode, the control module controls the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned on, and the first switch 15, the second switch 16 and the third switch 18 to be turned off, and the water source to be filtered flows into the pre-filter through the water inlet of the pre-filter, flows out from the water outlet of the pre-filter under the filtering action of the pre-filter, and flows to the boost pump 22 through the fourth switch 23, flows to the water inlet of the first filter element 14 through the fifth switch 24 under the boosting action of the boost pump 22, flows from the filtered water outlet of the first filter element 14 to the water inlet of the post-filter under the filtration of the first filter element 14, flows out from the water outlet of the post-filter under the filtering action of the post-filter, and then flows to the drinking water outlet through the sixth switch 25.

[0049] Furthermore, in some embodiments of the present invention, the system also includes a first one-way valve 26 and a second one-way valve 27, the input end of the first one-way valve 26 is connected to the air inlet of the gas to be mixed, the output end of the first one-way valve 26 is connected to the air inlet end of the ejector 11, the input end of the second one-way valve 27 is connected to the second water outlet of the second filter element 19, and the output end of the second one-way valve 27 is connected to the sixth switch 25.

[0050] Specifically, in this embodiment, the setting of the first one-way valve 26 can ensure the flow direction of the gas to be mixed, that is, the gas to be mixed can only enter the first one-way valve 26 through the input end of the first one-way valve 26, and enter the air inlet end of the ejector 11 through the output end of the first one-way valve 26. The setting of the second one-way valve 27 is used to ensure the flow direction of the filtered water source, that is, the filtered water source flowing out of the second water outlet of the second filter element 19 can only flow into the second one-way valve 27 from the input end of the second one-way valve 27, and flow to the sixth switch 25 through the output end of the second one-way valve 27.

[0051] Furthermore, in some embodiments of the present invention, it is characterized in that the first filter element 14 also includes a wastewater outlet, and the switch module also includes a seventh switch 29, and the seventh switch 29 is arranged at the wastewater outlet of the first filter element 14, and is used to discharge the wastewater generated by filtering the first filter element 14.

[0052] Specifically, in this embodiment, the control module controls the first switch 15, the second switch 16 and the seventh switch 29 to be turned on, and the third switch 18, the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned off, the gas to be mixed enters the first one-way valve 26 through the input end of the first one-way valve 26, and enters the air inlet end of the ejector 11 through the output end of the first one-way valve 26, the water source to be filtered flows into the second filter element 19 through the first water inlet of the second filter element 19, and flows out from the first water outlet of the second filter element 19 under the filtering action of the second filter element 19, and then flows into the pressure reducing valve 21 through the first switch 15, and flows into the water inlet of the ejector 11 with a relatively low pressure water flow under the control of the pressure reducing valve 21, and the gas to be mixed and the water source filtered by the second filter element 19 are preliminarily mixed in the ejector 11 and then pass through the ejector 11 1, and flows to the booster pump 22 through the input end of the gas-liquid mixer 12, flows into the gas-liquid mixer 12 under the action of the booster pump 22, and forms a gas-liquid mixture after being fully mixed in the gas-liquid mixer 12. The gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the first bubbler 13 through the second switch 16, generates micro-bubble water under the treatment of the first bubbler 13, and then outputs through the output end of the first bubbler 13, and flows into the first filter element 14 through the water inlet of the first filter element 14, so that the organic matter, grease, colloid and other pollutants attached to the filter membrane surface of the first filter element 14 can be cleaned by the micro-bubble water to improve the filtering capacity of the first filter element 14, and the wastewater generated after cleaning flows out from the wastewater outlet of the first filter element 14, and is discharged after passing through the seventh switch 29. Among them, the wastewater can be concentrated water.

[0053] Furthermore, in some embodiments of the present invention, the switch module further includes a high-voltage switch 28, and the control module is further used to control the high-voltage switch 28 to turn on, so as to power on the self-cleaning water purification system.

[0054] In summary, in a specific embodiment of the present utility model, in the cleaning mode, the control module controls the first switch 15, the second switch 16 and the seventh switch 29 to be turned on, and the third switch 18, the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned off, the gas to be mixed enters the first one-way valve 26 through the input end of the first one-way valve 26, and enters the air inlet end of the ejector 11 through the output end of the first one-way valve 26, the water source to be filtered flows into the pre-filter through the water inlet of the pre-filter, and flows out from the water outlet of the pre-filter under the filtering action of the pre-filter, and then flows into the pressure reducing valve 21 through the first switch 15, and flows into the water inlet of the ejector 11 with a relatively low-pressure water flow under the control of the pressure reducing valve 21, and the gas to be mixed and the water source filtered by the pre-filter are preliminarily mixed in the ejector 11 and then pass through the ejector The liquid flows out from the output end of the gas-liquid mixer 11, and flows to the booster pump 22 through the input end of the gas-liquid mixer 12, flows into the gas-liquid mixer 12 under the action of the boosting of the booster pump 22, and forms a gas-liquid mixture after being fully mixed in the gas-liquid mixer 12. The gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the first bubbler 13 through the second switch 16, generates micro-bubble water under the treatment of the first bubbler 13, and then is output through the output end of the first bubbler 13, and flows into the first filter element 14 through the water inlet of the first filter element 14, so that the organic matter, grease, colloid and other pollutants attached to the surface of the filter membrane of the first filter element 14 can be cleaned by the micro-bubble water to improve the filtering capacity of the first filter element 14, and the wastewater generated after cleaning flows out from the wastewater outlet of the first filter element 14, and is discharged after passing through the seventh switch 29.

[0055] In the bubble water mode, the control module controls the first switch 15, the second switch 16 and the third switch 18 to be turned on, and the fourth switch 23, the fifth switch 24, the sixth switch 25 and the seventh switch 29 to be turned off, the gas to be mixed enters the first one-way valve 26 through the input end of the first one-way valve 26, and flows into the air inlet end of the ejector 11 through the output end of the first one-way valve 26, the water source to be filtered flows into the pre-filter through the water inlet of the pre-filter, and flows out from the water outlet of the pre-filter under the filtering action of the pre-filter, and then flows into the pressure reducing valve 21 through the first switch 15, and flows into the pressure reducing valve 21 under the control of the pressure reducing valve 21 with a relatively low pressure water flow. At the water inlet of the ejector 11, the gas to be mixed and the water source filtered by the second filter element 19 are preliminarily mixed in the ejector 11 and then flow out through the output end of the ejector 11, and flow to the booster pump 22 through the input end of the gas-liquid mixer 12, and flow into the gas-liquid mixer 12 under the action of the booster pump 22, and form a gas-liquid mixture after being fully mixed in the gas-liquid mixer 12. The gas-liquid mixture flows out through the output end of the gas-liquid mixing module, and then flows into the input end of the second bubbler 17 through the third switch 18, and micro-bubble water is generated under the processing of the second bubbler 17, and then flows to the bubble water outlet through the output end of the second bubbler 17.

[0056] In the drinking water outlet mode, the control module controls the fourth switch 23, the fifth switch 24 and the sixth switch 25 to be turned on, and the first switch 15, the second switch 16, the third switch 18 and the seventh switch 29 to be turned off, and the water source to be filtered flows into the pre-filter through the water inlet of the pre-filter, and flows out from the water outlet of the pre-filter under the filtering action of the pre-filter, and then flows to the booster pump 22 through the fourth switch 23, and flows to the water inlet of the first filter element 14 through the fifth switch 24 under the boosting action of the booster pump 22, and flows from the filtered water outlet of the first filter element 14 to the water inlet of the post-filter under the filtering action of the first filter element 14, and flows from the water outlet of the post-filter to the input end of the second one-way valve 27 under the filtering action of the post-filter, and then flows from the output end of the second one-way valve 27 through the sixth switch 25 to the drinking water outlet, and a high-pressure switch 28 is also provided between the second one-way valve 27 and the sixth switch 25 for powering on the self-cleaning water purification.

[0057] In summary, according to the self-cleaning water purification system of the embodiment of the utility model, by cleaning the first filter element, the water quality and flow rate of the self-cleaning water purification system can be improved, thereby increasing the service life of the filter element and reducing the replacement cost of the filter element, thereby improving the user experience.

[0058] Figure 3 It is a block diagram of a water purifier according to an embodiment of the utility model.

[0059] Specifically, Figure 3 As shown, the water purifier 1000 includes the self-cleaning water purification system 100 of the above embodiment of the utility model.

[0060] According to the water purifier of the embodiment of the utility model, by adopting the self-cleaning water purification system of the above embodiment of the utility model to clean the first filter element, the water quality and flow rate of the self-cleaning water purification system can be improved, thereby increasing the service life of the filter element and reducing the replacement cost of the filter element, thereby improving the user experience.

[0061] In addition, other structures and functions of the water purifier of the embodiment of the utility model are known to those skilled in the art and will not be described in detail here to reduce redundancy.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A self-cleaning water purification system, characterized in that: The system comprises: A filtration module, wherein the filtration module comprises a first filter element, wherein the first filter element is a reverse osmosis filter element, and the first filter element is used for desalination filtration of a water source to be filtered; A gas-liquid processing module, the gas-liquid processing module is used to perform gas-liquid mixing processing on the water source to be filtered and the gas to be mixed to generate micro bubble water; A switch module, the switch module comprising a plurality of switches, the plurality of switches being used to guide the flow direction of the water source to be filtered and the microbubble water; A control module is used to control the switch module so that the micro-bubble water flows to the first filter element to clean the reverse osmosis membrane surface of the first filter element.

2. The self-cleaning water purification system according to claim 1, characterized in that: The gas-liquid processing module includes an ejector, a gas-liquid mixer and a first bubbler, the water inlet end of the ejector is connected to the water outlet of the water source to be filtered, the air inlet end of the ejector is connected to the air inlet of the gas to be mixed, the output end of the ejector is connected to the input end of the gas-liquid mixer, the output end of the gas-liquid mixer is connected to the input end of the first bubbler, and the output end of the first bubbler is connected to the water inlet of the first filter element.

3. The self-cleaning water purification system according to claim 2, characterized in that: The switch module includes a first switch and a second switch, wherein the first switch is arranged between the water inlet end of the ejector and the water outlet of the water source to be filtered, and the second switch is arranged between the output end of the gas-liquid mixer and the input end of the first bubbler. The control module is used for: The first switch and the second switch are controlled to be turned on to guide the water source to be filtered and the gas to be mixed to pass through the ejector and the gas-liquid mixer to mix to form a gas-liquid mixture, and the gas-liquid mixture is guided to the first bubbler to generate microbubble water and then flow to the first filter element.

4. The self-cleaning water purification system according to claim 3, characterized in that: The system also includes a drinking water outlet and a bubble water outlet, and the control module is also used to: control the switch module to guide the water source to be filtered to flow to the drinking water outlet after being filtered by the filter module, or to guide the water source to be filtered to flow to the bubble water outlet after passing through the filter module and the gas-liquid treatment module.

5. The self-cleaning water purification system according to claim 4, characterized in that: The filtration module also includes a second filter element, which is a front and rear composite filter element. The first water inlet of the second filter element is connected to the water outlet of the water source to be filtered, the first water outlet of the second filter element is connected to the water inlet end of the ejector through the first switch, the second water inlet of the second filter element is connected to the filtered water outlet of the first filter element, and the second water outlet of the second filter element is connected to the drinking water outlet.

6. The self-cleaning water purification system according to claim 5, characterized in that: The system further comprises a pressure reducing valve and a booster pump, wherein the pressure reducing valve is arranged between the first switch and the water inlet end of the ejector, and the booster pump is arranged between the output end of the ejector and the input end of the gas-liquid mixer.

7. The self-cleaning water purification system according to claim 5, characterized in that: The gas-liquid processing module further includes a second bubbler, the switch module further includes a third switch, the third switch is connected in series with the second bubbler and is arranged between the output end of the gas-liquid mixer and the bubble water outlet, and the control module is further used for: The first switch and the third switch are controlled to be turned on, and the second switch is controlled to be turned off, so as to guide the water source to be filtered through the second filter element and then be mixed with the gas to be mixed to form a gas-liquid mixture, and guide the gas-liquid mixture to the second bubbler to generate micro-bubble water and then flow to the bubble water outlet.

8. The self-cleaning water purification system according to claim 6, characterized in that: The switch module further includes a fourth switch, a fifth switch and a sixth switch, wherein the fourth switch is arranged between the first water outlet of the second filter element and the booster pump, the fifth switch is arranged between the booster pump and the water inlet of the first filter element, and the sixth switch is arranged between the second water outlet of the second filter element and the drinking water outlet. The control module is further used for: The fourth switch, the fifth switch and the sixth switch are controlled to be turned on, and the first switch and the second switch are controlled to be turned off, so as to guide the water source to be filtered through the pre-filter element of the second filter element, the first filter element and the post-filter element of the second filter element and then flow to the drinking water outlet.

9. The self-cleaning water purification system according to claim 8, characterized in that: The system also includes a first one-way valve and a second one-way valve, the input end of the first one-way valve is connected to the air inlet of the gas to be mixed, the output end of the first one-way valve is connected to the air inlet end of the ejector, the input end of the second one-way valve is connected to the second water outlet of the second filter element, and the output end of the second one-way valve is connected to the sixth switch.

10. The self-cleaning water purification system according to claim 8, characterized in that: The first filter element further includes a wastewater outlet, and the switch module further includes a seventh switch. The seventh switch is disposed at the wastewater outlet of the first filter element and is used to guide the wastewater generated by filtration of the first filter element.

11. The self-cleaning water purification system according to any one of claims 1 to 10, characterized in that: The switch module further includes a high-voltage switch, and the control module is further used for: The high-voltage switch is controlled to be turned on to power on the self-cleaning water purification system.

12. A water purifier, characterized in that: A self-cleaning water purification system comprising any one of claims 1-11.

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