Water purification equipment

Abstract

The utility model relates to the technical field of water purification, particularly provides water purification equipment, and aims to solve the problem that the use experience of a user is poor as a cleaning mode of the conventional water purification equipment cannot be started according to the pollution degree of a reverse osmosis membrane filter element. The water purification equipment comprises a reverse osmosis membrane filter element, a water inlet main path, a cleaning assembly and a flow velocity detection component, the cleaning assembly can convey cleaning liquid to the reverse osmosis membrane filter element to clean the reverse osmosis membrane filter element, the flow velocity detection component is used for detecting the flow velocity of pure water at the pure water end of the reverse osmosis membrane filter element, and the flow velocity detection component is in communication connection with the cleaning assembly. By arranging the flow velocity detection component, the reverse osmosis membrane filter element cleaning device can judge the pollution degree of the reverse osmosis membrane filter element according to the detection data of the flow velocity detection component, clean the reverse osmosis membrane filter element according to the pollution degree of the reverse osmosis membrane filter element, and judge the regeneration condition of the reverse osmosis membrane filter element according to the detection data of the flow velocity detection component; the intelligent control of the water purification equipment is improved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, provide a water purification equipment specifically. BACKGROUND

[0002] With the improvement of people's living standards, people's demand for drinking water is also getting higher and higher. Water purification equipment such as water purifier and water purification integrated machine gradually becomes an essential drinking water facility in people's daily life.

[0003] After a long time of use of the water purification equipment, dirt in the water will adhere to the reverse osmosis membrane filter element, affecting the water production rate of the water purification equipment, thereby affecting the service life of the reverse osmosis membrane filter element. After the water purification equipment is used for a period of time, cleaning the reverse osmosis membrane filter element with a cleaning agent can remove the dirt adhering to the surface of the reverse osmosis membrane filter element, thereby prolonging the service life of the reverse osmosis membrane filter element.

[0004] In the prior art, when the running time of the water purification equipment reaches the set time or when the water production reaches the preset water amount, the user controls the self-cleaning key to start the cleaning mode, so that the cleaning agent cleans the reverse osmosis membrane filter element. However, since the water purification equipment is used in different water quality areas, the pollution degree of the reverse osmosis membrane filter element is different, and the cleaning mode cannot be started according to the pollution degree of the reverse osmosis membrane filter element, resulting in poor user experience. SUMMARY

[0005] The utility model aims to at least solve the above technical problems to at least solve the problem that the existing water purification equipment cannot start the cleaning mode according to the pollution degree of the reverse osmosis membrane filter element, resulting in poor user experience.

[0006] The utility model provides a water purification equipment, which comprises a reverse osmosis membrane filter element, a water inlet main path in communication with a water inlet end of the reverse osmosis membrane filter element, a cleaning assembly capable of delivering cleaning liquid to the reverse osmosis membrane filter element for cleaning, and a flow rate detection member for detecting the pure water flow rate of a pure water end of the reverse osmosis membrane filter element, wherein the flow rate detection member is in communication connection with the cleaning assembly.

[0007] In the preferred technical scheme of the water purification equipment, the cleaning assembly comprises a first cleaning module and a second cleaning module, wherein the flow rate detection member is in communication connection with the first cleaning module, so as to selectively cause the first cleaning module to clean the reverse osmosis membrane filter core according to the detection data of the flow rate detection member; the flow rate detection member is also in communication connection with the second cleaning module, so as to selectively cause the second cleaning module to clean the reverse osmosis membrane filter core according to the detection data of the flow rate detection member after the first cleaning module cleans the reverse osmosis membrane filter core.

[0008] In the preferred technical scheme of the water purification equipment, the cleaning assembly has a cleaning inlet and a cleaning outlet, wherein the cleaning inlet is in communication with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form the cleaning liquid; and / or the cleaning assembly has a cleaning outlet, which is in communication with the water inlet main path, so that the cleaning liquid in the cleaning agent storage member enters the reverse osmosis membrane filter core through the water inlet main path.

[0009] In the preferred technical scheme of the water purification equipment, the first cleaning module comprises a first cleaning pipe, a first cleaning valve arranged on the first cleaning pipe, and a first cleaning agent storage member, the second cleaning module comprises a second cleaning pipe, a second cleaning valve arranged on the second cleaning pipe, and a second cleaning module, the first ends of the first cleaning pipe and the second cleaning pipe meet and are in communication with the cleaning inlet, the second ends of the first cleaning pipe and the second cleaning pipe meet and are in communication with the cleaning outlet, the first cleaning agent storage member is located at the downstream end of the first cleaning valve, and the second cleaning agent storage member is located at the downstream end of the second cleaning valve, wherein the flow rate detection member is in communication connection with the first cleaning valve and the second cleaning valve.

[0010] In the preferred technical scheme of the water purification equipment, the water purification equipment further comprises a pure water outlet pipe and a pure water water member, the pure water water member is in communication with the pure water end of the reverse osmosis membrane filter core through the pure water outlet pipe, wherein the flow rate detection member is arranged on the pure water outlet pipe; or the flow rate detection member is arranged at the downstream end of the pure water water member.

[0011] In the preferred technical scheme of the water purification equipment, the water purification equipment further comprises a backflow pipe and a backflow valve, the first end of the backflow pipe can be in communication with the pure water end of the reverse osmosis membrane filter core, the second end of the backflow pipe is in communication with the water inlet main path, and the backflow valve is arranged on the backflow pipe and is used to control the opening and closing of the backflow pipe, wherein the flow rate detection member is arranged on the pure water outlet pipe and is located at the upstream end of the backflow pipe.

[0012] In the preferred technical scheme of the water purification equipment, the water purification equipment further comprises a waste water outlet pipe, a drain pipe, and a drain valve arranged on the drain pipe, the waste water outlet pipe is communicated with the waste water end of the reverse osmosis membrane filter core, one end of the drain pipe is communicated with the pure water outlet pipe, and the other end of the drain pipe is communicated with the waste water outlet pipe, and the flow rate detection component is arranged on the pure water outlet pipe and located at the upstream end of the drain pipe.

[0013] In the preferred technical scheme of the water purification equipment, the water purification equipment further comprises a circulation pipe, a first end of the circulation pipe is communicated with the waste water end of the reverse osmosis membrane filter core, and a second end of the circulation pipe is communicated with the cleaning assembly, so that the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core, and the waste water end of the reverse osmosis membrane filter core are sequentially communicated to form a cleaning loop, and the water purification equipment is arranged to be capable of driving the cleaning liquid to circulate in the cleaning loop.

[0014] In the preferred technical scheme of the water purification equipment, the water purification equipment further comprises a circulation pump and a booster pump, the cleaning outlet of the cleaning assembly is communicated with the water inlet main circuit and located at the downstream end of the booster pump, and the circulation pump is arranged on the cleaning loop and used to drive the cleaning liquid to circulate in the cleaning loop.

[0015] In the preferred technical scheme of the water purification equipment, the flow rate detection component is a flow meter, and / or the water purification equipment further comprises a waste water outlet pipe and a waste water valve arranged on the waste water outlet pipe, and the flow rate detection component is communicatively connected with the waste water valve.

[0016] In the case of adopting the preferred technical scheme, by arranging the flow rate detection component, on the one hand, in the normal water production mode, the pure water flow rate during water production can be detected by the flow rate detection component, so that the pollution degree of the reverse osmosis membrane filter core can be judged, when the pollution of the reverse osmosis membrane filter core is relatively serious, the reverse osmosis membrane filter core can be cleaned in time according to the pollution blocking condition of the reverse osmosis membrane filter core, the intelligent control of the water purification equipment is improved, and on the other hand, after the cleaning assembly is used to clean the reverse osmosis membrane filter core, the water purification equipment is restored to the water production mode, the regeneration condition of the reverse osmosis membrane filter core is judged through the detection data of the flow rate detection component, so that the user can determine to continue cleaning, replace the filter core, or normally use according to the regeneration condition of the reverse osmosis membrane filter core, and the use experience of the user is greatly improved.

[0017] Further, by arranging the flow rate detection member in communication connection with the first cleaning module and the second cleaning module, after the reverse osmosis membrane filter core is cleaned by the first cleaning module, the second cleaning module can be selectively used to clean the reverse osmosis membrane filter core according to the detection data of the flow rate detection member, so that the regeneration degree of the reverse osmosis membrane filter core can be determined according to the detection data of the flow rate detection member after the reverse osmosis membrane filter core is cleaned by the first cleaning module, and then it is determined whether the second cleaning module needs to be used to clean the reverse osmosis membrane filter core according to the regeneration degree. On the one hand, when the regeneration degree of the reverse osmosis membrane filter core is high, the second cleaning module is not used to clean the reverse osmosis membrane filter core, thereby saving cleaning time. On the other hand, when the regeneration degree of the reverse osmosis membrane filter core is low, the second cleaning module is used to clean the reverse osmosis membrane filter core, thereby improving the cleaning effect of the reverse osmosis membrane filter core.

[0018] Still further, by arranging the backflow pipe and the backflow valve, after the cleaning assembly completes cleaning of the reverse osmosis membrane filter core, water at the pure water end of the reverse osmosis membrane filter core can be transported to the water inlet main line through the backflow pipe, and then the small amount of cleaning agent remaining at the pure water end of the reverse osmosis membrane filter core can be discharged through multiple filtrations of the reverse osmosis membrane filter core, thereby helping to achieve zero addition and zero chemical pollution, greatly improving the user experience. By arranging the flow rate detection member on the pure water outlet pipe and at the upstream end of the backflow pipe, the regeneration condition of the reverse osmosis membrane filter core can be determined by detecting the flow rate while discharging the remaining cleaning agent, thereby saving time and reducing water resource waste, further improving the user experience.

[0019] Still further, by arranging the backflow pipe and the backflow valve, after the cleaning assembly completes cleaning of the reverse osmosis membrane filter core, water at the pure water end of the reverse osmosis membrane filter core can be transported to the water inlet main line through the backflow pipe, and then the small amount of cleaning agent remaining at the pure water end of the reverse osmosis membrane filter core can be discharged through multiple filtrations of the reverse osmosis membrane filter core, thereby helping to achieve zero addition and zero chemical pollution, greatly improving the user experience. By arranging the flow rate detection member on the pure water outlet pipe and at the upstream end of the backflow pipe, the regeneration condition of the reverse osmosis membrane filter core can be determined by detecting the flow rate while discharging the remaining cleaning agent, thereby saving time and reducing water resource waste, further improving the user experience.

[0020] Still further, by arranging the backflow pipe and the backflow valve, after the cleaning assembly completes cleaning of the reverse osmosis membrane filter core, water at the pure water end of the reverse osmosis membrane filter core can be transported to the water inlet main line through the backflow pipe, and then the small amount of cleaning agent remaining at the pure water end of the reverse osmosis membrane filter core can be discharged through multiple filtrations of the reverse osmosis membrane filter core, thereby helping to achieve zero addition and zero chemical pollution, greatly improving the user experience. By arranging the flow rate detection member on the pure water outlet pipe and at the upstream end of the backflow pipe, the regeneration condition of the reverse osmosis membrane filter core can be determined by detecting the flow rate while discharging the remaining cleaning agent, thereby saving time and reducing water resource waste, further improving the user experience.

[0021] Further, compared with the form of driving the circulation flow of the liquid in the cleaning circuit by the booster pump, the form of setting the circulating pump to drive the circulation flow of the liquid in the cleaning circuit can avoid the cleaning liquid from entering the booster pump to damage the diaphragm of the booster pump, thereby avoiding affecting the service life of the booster pump, and by setting the cleaning outlet at the downstream end of the booster pump, the cleaning liquid can be prevented from flowing through the booster pump to damage the diaphragm of the booster pump, and since the cost of the circulating pump is much lower than that of the booster pump, the cost of the water purification equipment can be greatly saved, and the user experience is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0023] Figure 1 is a structural schematic view of an embodiment one of a cleaning mode of the water purification equipment of the present application;

[0024] Figure 2 is a structural schematic view of an embodiment two of a cleaning mode of the water purification equipment of the present application;

[0025] Figure 3 is a structural schematic view of an embodiment three of a cleaning mode of the water purification equipment of the present application;

[0026] Figure 4 is a structural schematic view of an embodiment four of a cleaning mode of the water purification equipment of the present application;

[0027] Figure 5 is a structural schematic view of an embodiment five of a cleaning mode of the water purification equipment of the present application;

[0028] Figure 6 is a structural schematic view of an embodiment six of a cleaning mode of the water purification equipment of the present application;

[0029] Figure 7 is a structural schematic view of an embodiment seven of a cleaning mode of the water purification equipment of the present application;

[0030] Figure 8 is a structural schematic view of an embodiment one of another cleaning mode of the present application;

[0031] Figure 9 is a structural schematic view of an embodiment two of another cleaning mode of the present application;

[0032] Figure 10 is a structural schematic view of an embodiment three of another cleaning mode of the present application;

[0033] Figure 11Is another cleaning mode embodiment four of the utility model's structure schematic diagram.

[0034] List of reference signs:

[0035] 1, water inlet main road;11, water inlet valve;12, booster pump;2, reverse osmosis membrane filter core;21, waste water outlet pipe;211, waste water valve;22, drain pipe;221, drain valve;23, backflow pipe;231, backflow valve;301, cleaning inlet;302, cleaning outlet;31, cleaning pipeline;311, first cleaning pipe;312, second cleaning pipe;32, cleaning valve;321, first cleaning valve;322, second cleaning valve;33, cleaning agent storage component;331, first cleaning agent storage component;332, second cleaning agent storage component;341, first check valve;342, second check valve;35, manifold;4, pre-filter unit;5, pure water outlet pipe;51, pure water component;52, flow rate detection component;61, circulation pipe;62, circulating pump;7, reversing valve. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0037] It should be noted that in the description of the utility model, the terms "upper", "lower", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] As Figures 1 to 11The utility model discloses a water purification equipment, including reverse osmosis membrane filter core 2, water inlet main road 1, cleaning assembly and flow rate detection component 52, wherein, water inlet main road 1 is linked with the water inlet end of reverse osmosis membrane filter core 2, and the cleaning assembly can deliver cleaning fluid to reverse osmosis membrane filter core 2 to clean reverse osmosis membrane filter core 2, and the flow rate detection component 52 is used to detect the pure water flow rate of the pure water end of reverse osmosis membrane filter core 2, wherein, the flow rate detection component 52 is connected with the cleaning assembly.

[0040] Through the setting, on the one hand, in the normal water production mode, the pure water flow rate during water production can be detected by the flow rate detection component 52, so that the pollution degree of the reverse osmosis membrane filter core 2 can be judged, when the pollution of the reverse osmosis membrane filter core 2 is more serious, the reverse osmosis membrane filter core 2 can be cleaned in time according to the pollution condition of the reverse osmosis membrane filter core 2, the intelligent control of the water purification equipment is improved, on the other hand, when the cleaning assembly is used to clean the reverse osmosis membrane filter core 2 (or after cleaning is completed), the water purification equipment is restored to the water production mode, and the regeneration condition of the reverse osmosis membrane filter core 2 is judged through the detection data of the flow rate detection component 52, so that the user can determine whether to continue cleaning, replace the filter core or use normally according to the regeneration condition of the reverse osmosis membrane filter core 2, and the use experience of the user is greatly improved.

[0041] It should be noted that the utility model does not make any limitation on the specific connection mode of the communication connection between the flow rate detection component 52 and the cleaning assembly, for example, the flow rate detection component 52 and the cleaning assembly can be arranged to be both in communication connection with the controller of the water purification equipment, or the flow rate detection component 52 and the cleaning assembly can be arranged to be both in communication connection with the mobile device of the user, and the like, and such flexible adjustment and change do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0042] Preferably, the water purification equipment of the utility model further comprises a controller, and the flow rate detection component 52 and the cleaning assembly are arranged to be both in communication connection with the controller of the water purification equipment.

[0043] It should be noted that in actual application, the cleaning assembly can be arranged to only include the first cleaning module, and the flow rate detection component 52 is in communication connection with the first cleaning module, or the cleaning assembly can be arranged to include the first cleaning module and the second cleaning module, and the flow rate detection component 52 is in communication connection with the first cleaning module and the second cleaning module, and the like, and such adjustment and change of the specific setting type of the cleaning assembly do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0044] Preferably, the cleaning assembly comprises a first cleaning module and a second cleaning module, wherein the flow rate detection member 52 is communicatively connected with the first cleaning module so as to selectively cause the first cleaning module to clean the reverse osmosis membrane filter core 2 according to the detection data of the flow rate detection member 52, and the flow rate detection member 52 is also communicatively connected with the second cleaning module so as to selectively cause the second cleaning module to clean the reverse osmosis membrane filter core 2 according to the detection data of the flow rate detection member 52 after the first cleaning module cleans the reverse osmosis membrane filter core 2.

[0045] Through such a setting, by setting the flow rate detection member 52 to be communicatively connected with the first cleaning module, the pollution degree of the reverse osmosis membrane filter core 2 can be judged according to the detection data of the flow rate detection member 52, and then it is determined whether the first cleaning module needs to be used to clean the reverse osmosis membrane filter core 2, and by setting the flow rate detection member 52 to be communicatively connected with the second cleaning module, the regeneration degree of the reverse osmosis membrane filter core 2 can be judged according to the detection data of the flow rate detection member 52 after the first cleaning module cleans the reverse osmosis membrane filter core 2, and then it is determined whether the second cleaning module needs to be used to clean the reverse osmosis membrane filter core 2, on the one hand, when the regeneration degree of the reverse osmosis membrane filter core 2 is high, the second cleaning module is not caused to clean the reverse osmosis membrane filter core 2, thereby saving cleaning time, and on the other hand, when the regeneration degree of the reverse osmosis membrane filter core 2 is low, the second cleaning module is caused to clean the reverse osmosis membrane filter core 2, thereby being able to improve the cleaning effect of the reverse osmosis membrane filter core 2.

[0046] It should be noted that in actual application, the specific setting type of the cleaning assembly is not limited by the present application, for example, the cleaning assembly can be set to have only the cleaning outlet 302, that is, a large amount of cleaning liquid is directly stored in the cleaning agent storage member 33, when it is needed to clean the reverse osmosis membrane filter core 2, the cleaning agent stored in the cleaning agent storage member 33 flows out from the cleaning outlet 302 and is delivered into the reverse osmosis membrane filter core 2, or the cleaning assembly can also be set to comprise the cleaning pipeline 31 and the cleaning agent storage member 33 arranged on the cleaning pipeline 31, the two ends of the cleaning pipeline 31 form the cleaning inlet 301 and the cleaning outlet 302 respectively, water is injected into the cleaning inlet 301 so as to form cleaning liquid in the cleaning agent storage member 33, and the like, and such adjustment and change of the specific setting type of the cleaning assembly does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0047] Preferably, as Figures 1 to 11As shown, the cleaning component also has a cleaning inlet 301, which is connected to the main water inlet 1 so that water in the main water inlet 1 enters the cleaning agent storage component 33 to form cleaning liquid. The cleaning outlet 302 is connected to the main water inlet 1 so that the cleaning liquid in the cleaning agent storage component 33 enters the reverse osmosis membrane filter element 2 through the main water inlet 1.

[0048] With this configuration, compared to setting the cleaning component to have only a cleaning outlet 302, setting the cleaning component to have both a cleaning inlet 301 and a cleaning outlet 302 allows the cleaning component to inject water into the cleaning inlet 301 to form cleaning fluid during cleaning. This avoids storing a large amount of cleaning fluid in the cleaning agent storage component 33, which would result in an excessively large cleaning component and further improves the user experience.

[0049] It should be noted that this utility model does not limit the specific connection method of the cleaning component to the reverse osmosis membrane filter element 2. For example, the cleaning outlet 302 of the cleaning component can be connected to the main water inlet 1 so that the cleaning outlet 302 is connected to the water inlet end of the reverse osmosis membrane filter element 2 via the main water inlet 1. Alternatively, the reverse osmosis membrane filter element 2 can be configured to have a first water inlet and a second water inlet, with the main water inlet 1 connected to the first water inlet and the cleaning outlet 302 connected to the second water inlet, etc. Such adjustments and changes to the specific connection method between the cleaning outlet 302 and the water inlet end of the reverse osmosis membrane filter element 2 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0050] Preferably, such as Figures 1 to 11 As shown, the cleaning outlet 302 is connected to the main water inlet 1 so that the cleaning liquid in the cleaning agent storage component 33 enters the reverse osmosis membrane filter element 2 through the main water inlet 1.

[0051] With this setup, there is no need to modify the reverse osmosis membrane filter element 2; it can be directly applied to the existing reverse osmosis membrane filter element 2, thereby further reducing the cost of the water purification equipment.

[0052] It should be noted that, in practical applications, this application does not impose any restrictions on the specific structural form of the cleaning component, as long as it has a cleaning inlet 301 and a cleaning outlet 302 and can deliver cleaning liquid to the reverse osmosis membrane filter element 2.

[0053] The cleaning component of this utility model is described below with reference to the following two embodiments.

[0054] Example 1:

[0055] like Figure 1 , Figure 3 , Figure 4 , Figure 6 andFigure 8 As shown, the cleaning assembly only includes a first cleaning module, the first cleaning module includes a cleaning pipeline 31 and a cleaning valve 32 and a cleaning agent storage member 33 arranged in sequence on the cleaning pipeline 31, the cleaning agent storage member 33 is located at the downstream end of the cleaning valve 32 and is used to store acidic cleaning agent or alkaline cleaning agent, wherein the flow rate detection member 52 is in communication connection with the cleaning valve 32.

[0056] In the process of water production of the water purification equipment, the flow rate of pure water at the pure water end of the reverse osmosis membrane filter core 2 is detected by the flow rate detection member 52, and then the pollution blocking condition of the reverse osmosis membrane filter core 2 is judged, when the flow rate detected by the flow rate detection member 52 is lower than the preset value, the signal is transmitted to the cleaning valve 32 and the cleaning valve 32 is started to make the water in the water inlet main pipeline 1 flow into the cleaning agent storage member 33, so that the cleaning agent stored in the cleaning agent storage member 33 is dissolved and forms a cleaning liquid, the cleaning liquid is transported into the reverse osmosis membrane filter core 2 to soak the reverse osmosis membrane filter core 2, and remove the dirt on the reverse osmosis membrane filter core 2.

[0057] After the cleaning assembly completes the cleaning of the reverse osmosis membrane filter core 2, the water purification equipment is restored to the water production mode, and the flow rate of pure water at the pure water end of the reverse osmosis membrane filter core 2 is detected by the flow rate detection member 52 to judge the regeneration degree of the reverse osmosis membrane filter core 2, so that the user can timely master the regeneration condition of the reverse osmosis membrane filter core 2, if the regeneration condition is good, the reverse osmosis membrane filter core 2 can be used normally, and if the regeneration condition is poor, it is necessary to replace the filter core.

[0058] It should be noted that in actual application, those skilled in the art can store cleaning agent in the cleaning agent storage member 33 according to actual application requirements, for example, acidic cleaning agent can be stored in the cleaning agent storage member 33, or alkaline cleaning agent can also be stored in the cleaning agent storage member 33, etc., such adjustment and change of the type of cleaning agent in the cleaning agent storage member 33 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0059] Example 2:

[0060] As Figure 2 , Figure 4 , Figure 7 , Figure 9 to 11As shown, the cleaning assembly includes a first cleaning module and a second cleaning module arranged in parallel, the first cleaning module includes a first cleaning pipe 311, a first cleaning valve 321 arranged on the first cleaning pipe 311, and a first cleaning agent storage member 331, the second cleaning module includes a second cleaning pipe 312, a second cleaning valve 322 arranged on the second cleaning pipe 312, and a second cleaning agent storage member 332, the first ends of the first cleaning pipe 311 and the second cleaning pipe 312 are communicated with the cleaning inlet 301, the second ends of the first cleaning pipe 311 and the second cleaning pipe 312 are communicated with the cleaning outlet 302, the first cleaning agent storage member 331 is located at the downstream end of the first cleaning valve 321, and the second cleaning agent storage member 332 is located at the downstream end of the second cleaning valve 322, wherein the flow rate detection member 52 is in communication connection with the first cleaning valve 321 and the second cleaning valve 322.

[0061] It should be noted that in actual application, the cleaning assembly is not limited to be arranged as the first cleaning module and the second cleaning module arranged in parallel, for example, the cleaning assembly can also be arranged as the first cleaning module, the second cleaning module, and the third cleaning module arranged in parallel, and the like, and the adjustment and change of the specific arrangement number of the cleaning modules arranged in parallel do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0062] It should be further noted that when the reverse osmosis membrane filter core 2 is cleaned, the reverse osmosis membrane filter core 2 can be first cleaned by using an acidic cleaning agent, and then cleaned by using an alkaline cleaning agent, or the reverse osmosis membrane filter core 2 can be first cleaned by using an alkaline cleaning agent, and then cleaned by using an acidic cleaning agent, and the like, and the flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0063] Hereinafter, the cleaning process of the reverse osmosis membrane filter core 2 will be introduced by taking the example that the reverse osmosis membrane filter core 2 is first cleaned by using an acidic cleaning agent, and then cleaned by using an alkaline cleaning agent.

[0064] Specifically, the first cleaning agent storage member 331 is used for storing the acidic cleaning agent, and the second cleaning agent storage member 332 is used for storing the alkaline cleaning agent.

[0065] In the process of water production of the water purification device, the pure water flow rate of the reverse osmosis membrane filter core 2 is detected by the flow rate detection component 52, and then the pollution blocking condition of the reverse osmosis membrane filter core 2 is judged; when the pure water flow rate detected by the flow rate detection component 52 is lower than a preset value, a signal is transmitted to the first cleaning valve 321, and the first cleaning valve 321 is started to make the water in the water inlet main line 1 flow into the first cleaning agent storage component 331, so that the acidic cleaning agent stored in the first cleaning agent storage component 331 is dissolved to form an acidic cleaning liquid, and the acidic cleaning liquid is transported into the reverse osmosis membrane filter core 2 to soak the reverse osmosis membrane filter core 2, and remove the dirt on the reverse osmosis membrane filter core 2.

[0066] When the acidic cleaning agent completes cleaning the reverse osmosis membrane filter core 2, the water purification device is restored to the water production mode, the pure water flow rate of the reverse osmosis membrane filter core 2 is detected by the flow rate detection component 52, and then the regeneration condition of the reverse osmosis membrane filter core 2 is judged; according to the regeneration condition, it is judged whether the alkaline cleaning agent needs to be used to continue cleaning the reverse osmosis membrane filter core 2; for example, if the pure water flow rate detected by the flow rate detection component 52 is higher than the set value, it indicates that the regeneration degree of the reverse osmosis membrane filter core 2 is relatively high, and the reverse osmosis membrane filter core 2 does not need to be continuously cleaned by the alkaline cleaning agent; if the pure water flow rate detected by the flow rate detection component 52 is lower than the set value, it indicates that the regeneration degree of the reverse osmosis membrane filter core 2 is still relatively low, and the reverse osmosis membrane filter core 2 still needs to be cleaned by the alkaline cleaning agent; at this time, a signal is transmitted to the second cleaning valve 322 and the second cleaning valve 322 is started, the water in the water inlet main line 1 flows into the second cleaning agent storage component 332, the alkaline cleaning agent stored in the second cleaning agent storage component 332 is dissolved to form an alkaline cleaning liquid, and the alkaline cleaning liquid is transported into the reverse osmosis membrane filter core 2 to soak the reverse osmosis membrane filter core 2 with the alkaline cleaning liquid, and remove the organic dirt on the reverse osmosis membrane filter core 2.

[0067] It should be noted that although the utility model is introduced by taking the example of first using the acidic cleaning agent to clean the reverse osmosis membrane filter core 2 and then using the alkaline cleaning agent to clean the reverse osmosis membrane filter core 2, this is not restrictive, and the cleaning mode of first using the alkaline cleaning agent to clean the reverse osmosis membrane filter core 2 and then using the acidic cleaning agent to clean the reverse osmosis membrane filter core 2 does not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0068] It should be noted that the utility model does not limit the specific type of the acidic cleaning agent, for example, the acidic cleaning agent can be at least one of malic acid, citric acid, hydrochloric acid and phosphoric acid, and of course the acidic cleaning agent can also be other types of acidic solution, and those skilled in the art can adjust according to actual needs.

[0069] Preferably, the acidic cleaning agent is malic acid or citric acid, which has good disinfection and sterilization effect while cleaning dirt, and can disinfect and sterilize the reverse osmosis membrane filter element 2.

[0070] It should be further explained that the specific type of the alkaline cleaning agent is not limited in the utility model, for example, the alkaline cleaning agent can be at least one of dishwashing powder, soda, baking soda, sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, sodium citrate, ethylenediaminetetraacetic acid tetrasodium, sodium dodecyl sulfate, sodium disulfite, sodium bisulfite, and of course the alkaline cleaning agent can also be other types of alkaline solution, which can be adjusted according to actual needs by those skilled in the art.

[0071] It should be further explained that the form of the cleaning agent in the first cleaning agent storage member 331 and the second cleaning agent storage member 332 is not limited in the utility model, for example, the cleaning agent in the first cleaning agent storage member 331 and the second cleaning agent storage member 332 can be both set as solid or liquid cleaning agent, etc., and the adjustment and change of the specific form of the cleaning agent stored in the first cleaning agent storage member 331 and the second cleaning agent storage member 332 do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0072] Preferably, the cleaning agent stored in the first cleaning agent storage member 331 and the second cleaning agent storage member 332 is in solid form.

[0073] Further preferably, in order to accelerate the dissolution of the cleaning agent, the cleaning agent is in granular or powder form.

[0074] It should be further explained that in actual application, those skilled in the art can set a check structure in the cleaning agent storage member 33 to prevent the water in the water inlet main line 1 from entering the cleaning agent storage member 33 through the cleaning outlet 302, or a one-way valve 34 can be set on the cleaning pipeline 31 to prevent the water in the water inlet main line 1 from entering the cleaning agent storage member 33 through the cleaning outlet 302, or a control valve can also be set on the cleaning pipeline 31 to prevent the water in the water inlet main line 1 from entering the cleaning agent storage member 33 through the cleaning outlet 302, etc., and such flexible adjustment and change do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0075] Preferably, as shown in Figures 1 to 11 The first one-way valve 341 is located at the downstream end of the cleaning agent storage member 33 and can prevent the water in the water inlet main line 1 from entering the cleaning agent storage member 33 through the cleaning outlet 302.

[0076] By setting the first one-way valve 341, when the water purification equipment is in the normal water production mode, the water in the water inlet main line 1 can be prevented from flowing back into the cleaning agent storage member 33, so that the cleaning agent is prevented from being dissolved and entering the reverse osmosis membrane filter core 2 in the normal water production mode. At the same time, since the cost of the one-way valve 341 is obviously lower than that of the control valve, compared with the form of setting the control valve on the cleaning pipeline 31, the one-way valve 341 is set to prevent the water in the water inlet main line 1 from entering the cleaning agent storage member 33 through the cleaning outlet 302, which can further save the cost of the water purification equipment.

[0077] Preferably, the water purification equipment further comprises a pure water outlet pipe 5 and a pure water water member 51, the pure water water member 51 is in communication with the pure water end of the reverse osmosis membrane filter core 2 through the pure water outlet pipe 5, and the pure water water member 51 is used to output the water at the pure water end of the reverse osmosis membrane filter core 2 for the user to drink.

[0078] It should be noted that in actual application, those skilled in the art can directly set the pure water water member 51 as a water outlet member (such as a faucet or a water outlet nozzle), and the filtered pure water flows out of the faucet or the water outlet nozzle for the user to use, or the pure water water member 51 can be set as a post-filter core, the filtered pure water flows into the post-filter core to improve the taste for the user to use, or the pure water water member 51 can be set as a pure water tank, the filtered pure water after the reverse osmosis membrane filter core 2 flows into the pure water tank for storage for the user to use, and the like. Such adjustment and change of the specific setting type of the pure water water member 51 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0079] Preferably, the pure water water member 51 is a post-filter core.

[0080] It should be noted that the present application does not make any limitation on the specific setting position of the flow rate detection member 52, as long as the pure water flow rate at the pure water end of the reverse osmosis membrane filter core 2 can be detected.

[0081] In one specific embodiment, as shown in Figures 1 to 2 , Figures 4 to 11 , the flow rate detection member 52 is arranged on the pure water outlet pipe 5.

[0082] In another specific embodiment, as shown in Figure 3 , the flow rate detection member 52 is arranged at the downstream end of the pure water water member 51.

[0083] Preferably, the flow rate detection member 52 is arranged on the pure water outlet pipe 5.

[0084] Preferably, as shown in Figure 4 , Figure 5 and Figure 10As shown, the water purification device further comprises a backflow pipe 23 and a backflow valve 231, a first end of the backflow pipe 23 is capable of communicating with the pure water end of the reverse osmosis membrane filter core 2, a second end of the backflow pipe 23 communicates with the water inlet main line 1, and the backflow valve 231 is arranged on the backflow pipe 23 and is used for controlling the opening and closing of the backflow pipe 23, wherein the flow rate detection member 52 is arranged on the pure water outlet pipe 5 and is located at the upstream end of the backflow pipe 23.

[0085] By arranging the backflow pipe 23 and the backflow valve 231, when the cleaning assembly finishes cleaning the reverse osmosis membrane filter core 2, the water in the pure water end of the reverse osmosis membrane filter core 2 can be transported to the water inlet main line 1 through the backflow pipe, and then filtered multiple times by the reverse osmosis membrane filter core 2, so as to discharge the small amount of cleaning agent remaining in the pure water end of the reverse osmosis membrane filter core 2, which helps to realize zero addition and zero chemical pollution, greatly improves the user experience, and by arranging the flow rate detection member 52 on the pure water outlet pipe 5 and at the upstream end of the backflow pipe 23, the regeneration condition of the reverse osmosis membrane filter core 2 can be judged by detecting the flow rate while discharging the remaining cleaning agent, which not only saves time but also reduces water resource waste, further improving the user experience.

[0086] It should be noted that by arranging the backflow pipe 23 and the backflow valve 231, the water with high TDS in the pure water end of the reverse osmosis membrane filter core 2 can also be transported to the water inlet main line 1 when the water purification device does not produce water for a long time, thereby solving the problem of "high TDS value of the first cup of water".

[0087] It should be further noted that it is not limited to discharging the water containing a small amount of cleaning agent remaining in the pure water end of the reverse osmosis membrane filter core 2 by arranging the backflow pipe 23 and the backflow valve 231, for example, the water containing a small amount of cleaning agent remaining in the pure water end of the reverse osmosis membrane filter core 2 can also be discharged to the outside of the water purification device by arranging a drain pipe.

[0088] Specifically, as shown in Figure 6 , Figure 7 and Figure 11 , the water purification device further comprises a waste water outlet pipe 21, a drain pipe 22 and a drain valve 221 arranged on the drain pipe 22, the waste water outlet pipe 21 communicates with the waste water end of the reverse osmosis membrane filter core 2, one end of the drain pipe 22 communicates with the pure water outlet pipe 5, and the other end of the drain pipe 22 communicates with the waste water outlet pipe 21, wherein the flow rate detection member 52 is arranged on the pure water outlet pipe 5 and is located at the upstream end of the drain pipe 22.

[0089] By setting the drain pipe 22 and the drain valve 221, when the cleaning of the reverse osmosis membrane filter core 2 by the cleaning assembly is completed, the water at the pure water end of the reverse osmosis membrane filter core 2 can be transported to the waste water outlet pipe 21 through the backflow pipe, so as to discharge the water containing a small amount of cleaning agent, which helps to realize zero addition and zero chemical pollution. By setting the flow rate detection member 52 on the pure water outlet pipe 5 and at the upstream end of the drain pipe 22, the regeneration condition of the reverse osmosis membrane filter core 2 can be judged by detecting the flow rate while discharging the residual cleaning agent, which can save time and reduce water resource waste, and further improves the user experience.

[0090] It should be noted that the other end of the drain pipe 22 is not limited to be communicated with the waste water outlet pipe 21, for example, the other end of the drain pipe 22 can be directly communicated with the drain port of the water purification equipment, or the other end of the drain pipe 22 can be communicated with the sewer pipe in the user's use scene, etc. Such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the other end of the drain pipe 22 is communicated with the waste water outlet pipe 21.

[0091] It should be noted that when the reverse osmosis membrane filter core 2 is cleaned, it is not limited to being cleaned by the cleaning mode of soaking the reverse osmosis membrane filter core 2 in the cleaning liquid, for example, a circulation pipe can be provided, so that the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core 2 and the waste water end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, and the cleaning liquid is driven to circulate in the cleaning loop, so as to clean the reverse osmosis membrane filter core 2 by multiple flushing cleaning mode, etc. Such adjustment and change of the specific cleaning mode of the cleaning liquid for cleaning the reverse osmosis membrane filter core 2 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0092] Preferably, as shown in Figures 8 to 11 The water purification equipment of the present application further comprises a circulation pipe 61, the first end of the circulation pipe 61 is communicated with the waste water end of the reverse osmosis membrane filter core 2, and the second end of the circulation pipe 61 is communicated with the cleaning assembly, so that the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core 2 and the waste water end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, and the water purification equipment is set to drive the cleaning liquid to circulate in the cleaning loop.

[0093] By setting the circulation pipe 61, the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core 2 and the waste water end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, when the reverse osmosis membrane filter core 2 is cleaned, the cleaning liquid can be circulated in the cleaning loop to flush the reverse osmosis membrane filter core 2 multiple times, which is more helpful to clean the dirt on the reverse osmosis membrane filter core 2, and improves the cleaning effect and efficiency.

[0094] It should be noted that the utility model does not make any limitation to the specific driving mode of driving the cleaning liquid to circulate in the cleaning circuit, for example, a circulating pump can be arranged on the cleaning circuit to drive the cleaning liquid to circulate in the cleaning circuit, or a booster pump can be arranged on the water inlet main line 1 between the cleaning outlet 302 and the reverse osmosis membrane filter core 2 to drive the cleaning liquid to circulate in the cleaning circuit, and the like, and such adjustment and change of the specific driving mode of driving the cleaning liquid to circulate in the cleaning circuit of the water purification equipment does not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0095] Preferably, as shown in the utility model, the water purification equipment further comprises a circulating pump 62 and a booster pump 12, the cleaning outlet 302 is communicated with the water inlet main line 1 and located at the downstream end of the booster pump 12, and the circulating pump 62 is arranged on the cleaning circuit and used to drive the cleaning liquid to circulate in the cleaning circuit. Figures 8 to 11

[0096] Through such arrangement, compared with the form of driving the liquid in the cleaning circuit to circulate by the booster pump 12, the form of driving the liquid in the cleaning circuit to circulate by arranging the circulating pump 62 can avoid the cleaning liquid entering the booster pump 12 to damage the diaphragm of the booster pump 12, so as to avoid affecting the service life of the booster pump 12, and by arranging the cleaning outlet 302 at the downstream end of the booster pump 12, the cleaning liquid can be prevented from flowing through the booster pump 12 to damage the diaphragm of the booster pump 12, and since the cost of the circulating pump 62 is much lower than that of the booster pump 12, the cost of the water purification equipment can be greatly saved, and the user's use experience is further improved.

[0097] It should be noted that the utility model does not make any limitation to the specific driving mode of driving the cleaning liquid to circulate in the cleaning circuit, for example, a circulating pump can be arranged on the cleaning circuit to drive the cleaning liquid to circulate in the cleaning circuit, or a booster pump can be arranged on the water inlet main line 1 between the cleaning outlet 302 and the reverse osmosis membrane filter core 2 to drive the cleaning liquid to circulate in the cleaning circuit, and the like, and such adjustment and change of the specific driving mode of driving the cleaning liquid to circulate in the cleaning circuit of the water purification equipment does not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0098] Preferably, as shown in the utility model, the water purification equipment further comprises a circulating pump 62 and a booster pump 12, the cleaning outlet 302 is communicated with the water inlet main line 1 and located at the downstream end of the booster pump 12, and the circulating pump 62 is arranged on the cleaning circuit and used to drive the cleaning liquid to circulate in the cleaning circuit. Figure 8

[0099] Preferably, as shown in the utility model, the water purification equipment further comprises a circulating pump 62 and a booster pump 12, the cleaning outlet 302 is communicated with the water inlet main line 1 and located at the downstream end of the booster pump 12, and the circulating pump 62 is arranged on the cleaning circuit and used to drive the cleaning liquid to circulate in the cleaning circuit. Figure 9 to 11 ​​As shown, for the case that the cleaning assembly comprises the first cleaning module and the second cleaning module, the second ends of the first cleaning pipe 311 and the second cleaning pipe 321 meet and communicate with the collecting pipe 35, the end of the collecting pipe 35 forms the cleaning outlet 302, and the circulating pump 62 is arranged on the collecting pipe 35.

[0100] Preferably, as Figures 8 to 11 As shown, the water purification equipment further comprises a second check valve 342, which is arranged between the cleaning outlet 302 and the circulating pump 62 and can resist the water pressure in the water inlet main line 1.

[0101] When the water purification equipment is in the normal water production mode, the water pressure in the water inlet main line 1 is large, and in order to reduce cost and increase efficiency, a low-cost water pump that is not pressure-resistant is selected as the circulating pump 62. By arranging the second check valve 342, the water pressure in the water inlet main line 1 can be resisted, the water in the water inlet main line 1 can be prevented from entering the circulating pump 62, and the problem of water leakage of the circulating pump 62 caused by the excessively high water pressure in the water inlet main line 1 can be prevented.

[0102] It should be noted that, in actual application, the specific setting type of the flow rate detection member 52 is not limited in the present application, for example, the flow rate detection member 52 can be set as a flow meter, or the flow rate detection member 52 can be set as a flow rate tester, or the flow rate detection member 52 can be set as a flow sensor and a timer, the flow rate of the pure water is calculated by detecting the water flow passing through in a unit time, any other member capable of detecting the flow rate of the pure water does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0103] Preferably, the flow rate detection member 52 is a flow meter.

[0104] It should be noted that, in actual application, the specific connection mode of the first end of the circulating pipe 61 and the waste water end of the reverse osmosis membrane filter core 2 is not limited in the present application, for example, the first end of the circulating pipe 61 can be directly connected with the waste water outlet pipe 21, or the first end of the circulating pipe 61 can be connected with the waste water end of the reverse osmosis membrane filter core 2 through the waste water outlet pipe 21, and the like, and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0105] Preferably, the first end of the circulating pipe 61 is connected with the waste water end of the reverse osmosis membrane filter core 2 through the waste water outlet pipe 21, and the liquid in the cleaning loop can also be discharged through the waste water outlet pipe 21.

[0106] With this setup, the cleaning components, the inlet of the reverse osmosis membrane filter element 2, and the wastewater outlet of the reverse osmosis membrane filter element 2 can be connected in sequence to form a cleaning circuit, which facilitates the cleaning of the reverse osmosis membrane filter element 2. After cleaning is completed, the cleaning liquid in the cleaning circuit can be discharged through the wastewater outlet pipe 21, thus eliminating the need for additional drainage pipes.

[0107] The following describes the specific ways in which the first end of the circulation pipe 61 is connected to the wastewater end of the reverse osmosis membrane filter element 2 through the wastewater outlet pipe 21, using the following two scenarios as examples.

[0108] Scenario 1:

[0109] like Figures 8 to 11 As shown, the wastewater outlet pipe 21 is connected to the wastewater end of the reverse osmosis membrane filter element 2, and the first end of the circulation pipe 61 is connected to the wastewater outlet pipe 21.

[0110] By setting up a wastewater outlet pipe 21, during normal water production, the wastewater produced by the reverse osmosis membrane filter element 2 flows out through the wastewater outlet pipe 21. When the reverse osmosis membrane filter element 2 is cleaned, the cleaning wastewater can also flow out through the wastewater outlet pipe 21. The cleaning wastewater in the reverse osmosis membrane filter element 2 can be discharged without adding additional drainage components to the water purification equipment, thus reducing the cost of the water purification equipment. Setting the circulation pipe 61 to be connected to the wastewater outlet pipe 21 can simplify the pipeline connection of the water purification equipment.

[0111] It should be noted that, in practical applications, those skilled in the art can set the first end of the circulation pipe 61 to be located upstream of the wastewater valve 211, or they can set the first end of the circulation pipe 61 to be located downstream of the wastewater valve 211, etc. Such adjustments and changes to the specific positions of the first end of the circulation pipe 61 and the wastewater valve 211 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0112] Preferably, such as Figures 8 to 11 As shown, the water purification equipment also includes a wastewater valve 211 installed on the wastewater outlet pipe 21, and the first end of the circulation pipe 61 is located at the upstream end of the wastewater valve 211.

[0113] With this configuration, when the cleaning component cleans the reverse osmosis membrane filter element 2, it can prevent the dirt removed from the cleaning component from entering the wastewater valve 211 and causing the wastewater valve 211 to become clogged, thereby extending the service life of the wastewater valve 211.

[0114] It should be noted that in actual application, the wastewater valve 211 can be set to a type with a shut-off function, when it is necessary to clean the reverse osmosis membrane filter core 2, the opening and closing of the wastewater outlet pipe 21 is controlled by adjusting the wastewater valve 211 to prevent the water in the reverse osmosis membrane filter core 2 from flowing out through the wastewater outlet pipe 21, or a shut-off valve can be arranged on the wastewater outlet pipe 21, when it is necessary to clean the reverse osmosis membrane filter core 2, the water in the reverse osmosis membrane filter core 2 is prevented from flowing out through the wastewater outlet pipe 21 by closing the shut-off valve, and the like, and such adjustment and change of the specific setting type of the wastewater valve 211 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0115] Preferably, the water purification device further comprises a shut-off valve (not shown in the figure) arranged on the wastewater outlet pipe 21 and used to control the opening and closing of the wastewater outlet pipe 21.

[0116] Case 2:

[0117] The wastewater end of the reverse osmosis membrane filter core 2 can selectively communicate with the first end of the wastewater outlet pipe 21 or the circulation pipe 61.

[0118] Through such a setting, when the water purification device is in a normal water production mode, the wastewater end of the reverse osmosis membrane filter core 2 is communicated with the wastewater outlet pipe 21, and the filtered wastewater flows out through the wastewater outlet pipe 21, and when the water purification device is in a cleaning mode, the wastewater end of the reverse osmosis membrane filter core 2 is communicated with the first end of the circulation pipe 61, so that the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core 2 and the wastewater end of the reverse osmosis membrane filter core 2 are sequentially communicated to form a cleaning loop, thereby achieving convenient switching between the water production mode and the cleaning mode, and further improving the user experience.

[0119] It should be noted that in actual application, the present application does not make any limitation on the specific communication mode of the wastewater end of the reverse osmosis membrane filter core 2 selectively communicating with the first end of the wastewater outlet pipe 21 or the circulation pipe 61, for example, a reversing valve 7 can be arranged, wherein the first interface of the reversing valve 7 is communicated with the wastewater end of the reverse osmosis membrane filter core 2, the second interface of the reversing valve 7 is communicated with the wastewater outlet pipe 21, and the third interface of the reversing valve 7 is communicated with the first end of the circulation pipe 61, or a three-way pipe can be arranged, the first end of the three-way pipe is communicated with the wastewater end of the reverse osmosis membrane filter core 2, the second end and the third end of the three-way pipe are respectively communicated with the wastewater outlet pipe 21 or the first end of the circulation pipe 61, and first and second valves are respectively arranged on the wastewater outlet pipe 21 and the circulation pipe 61 to enable the wastewater end of the reverse osmosis membrane filter core 2 to selectively communicate with the first end of the wastewater outlet pipe 21 or the circulation pipe 61, and the like, and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0120] Preferably, as shown in Figure 10 The water purification device further comprises a reversing valve 7, wherein a first interface of the reversing valve 7 is in communication with the wastewater end of the reverse osmosis membrane filter core 2, a second interface of the reversing valve 7 is in communication with the wastewater outlet pipe 21, a third interface of the reversing valve 7 is in communication with the first end of the circulation pipe 61, and the first interface of the reversing valve 7 can selectively communicate with the second interface or the third interface.

[0121] Through such an arrangement, the pipeline connection can be further simplified, and the simplicity of the water purification device is improved.

[0122] It should be noted that, in actual application, the wastewater valve 211 can be arranged as a fixed wastewater ratio, or the wastewater valve 211 can be arranged as a wastewater proportional valve, and the like. Such adjustment and change of the specific arrangement type of the wastewater valve 211 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0123] Preferably, the wastewater valve 211 is a wastewater proportional valve, and the flow rate detection member 52 is in communication connection with the wastewater proportional valve.

[0124] Through such an arrangement, the wastewater gear of the wastewater proportional valve can be adjusted according to the detection data of the flow rate detection member 52, so as to select a suitable wastewater gear according to the degree of pollution blocking of the reverse osmosis membrane filter core 2, and the use experience of the user is further improved.

[0125] Preferably, as shown in Figures 1 to 11 The water purification device of the present application further comprises a pre-filtering unit 4, the water outlet end of the pre-filtering unit 4 is in communication with the water inlet main path 1, and the cleaning inlet 301 is located at the downstream end of the pre-filtering unit 4.

[0126] Through such an arrangement, that is, by arranging the cleaning inlet 301 to be located at the downstream end of the pre-filtering unit 4, the purified water filtered by the pre-filtering unit 4 can enter the cleaning agent storage member 33 through the cleaning inlet 301, and the purified water filtered by the pre-filtering unit 4 is used to dissolve the cleaning agent, so as to improve the solubility of the cleaning agent and the cleanliness of the cleaning liquid, thereby effectively improving the cleaning effect of the reverse osmosis membrane filter core 2.

[0127] It should be noted that, in actual application, the pre-filtering unit 4 can be arranged as a pre-filtering filter core, or the pre-filtering unit 4 can be arranged as a composite filter core including a pre-filtering filter core and a post-filtering filter core, and the like. Such adjustment and change of the specific type of the pre-filtering unit 4 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0128] Preferably, the pre-filtering unit 4 is a pre-filtering filter core.

[0129] Preferably, as shown in Figures 1 to 11 The water purification device further comprises a water inlet valve 11 arranged on the water inlet main path 1, the cleaning inlet 301 is located at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is located at the downstream end of the water inlet valve 11.

[0130] Through such an arrangement, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water in the water inlet main path 1 can be prevented from directly entering the reverse osmosis membrane filter core 2 by operating the water inlet valve 11, so as to avoid diluting the cleaning liquid entering the reverse osmosis membrane filter core 2.

[0131] It should be noted that in actual application, the cleaning inlet 301 is not limited to being arranged at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is not limited to being arranged at the downstream end of the water inlet valve 11. For example, the cleaning inlet 301 and the cleaning outlet 302 can both be arranged at the upstream end of the water inlet valve 11, or the cleaning inlet 301 and the cleaning outlet 302 can both be arranged at the downstream end of the water inlet valve 11. Such adjustment and change of the relative positions of the cleaning assembly and the water inlet valve 11 do not deviate from the principles and ranges of the present application, and should be included in the protection scope of the present application. Of course, preferably, the cleaning inlet 301 is arranged at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is arranged at the downstream end of the water inlet valve 11.

[0132] It should be further noted that in actual application, the booster pump 12 can be arranged at the upstream end of the water inlet valve 11, or the booster pump 12 can be arranged at the downstream end of the water inlet valve 11. Such adjustment and change of the specific arrangement positions of the booster pump 12 and the water inlet valve 11 do not deviate from the principles and ranges of the present application, and should be included in the protection scope of the present application.

[0133] Preferably, as shown in Figures 1 to 11 The booster pump 12 is arranged at the upstream end of the water inlet valve 11, and the cleaning inlet 301 is arranged between the booster pump 12 and the water inlet valve 11.

[0134] By arranging the booster pump 12 at the upstream end of the water inlet valve 11 and arranging the cleaning inlet 301 between the booster pump 12 and the water inlet valve 11, the cleaning inlet 301 can be located at the downstream end of the booster pump 12, so that the water in the water inlet main path 1 can be conveniently pumped into the cleaning assembly and delivered into the reverse osmosis membrane filter core 2 by the booster pump 12, thereby improving the cleaning efficiency and cleaning effect.

[0135] It should be noted that in actual application, the water purification device can be set as a water purifier, or can also be set as a water and drink integrated machine, or can also be set as any other possible type, etc., and such adjustment and change of the specific setting type of the water purification device does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0136] Exemplarily, the water purification device is a water purifier.

[0137] So far, the technical solution of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical solutions after such changes or replacements will fall within the protection scope of the present application.

Claims

1. A water purification apparatus, characterized by comprising: The water purification device comprises: a reverse osmosis membrane filter core; a water inlet main line in communication with a water inlet end of the reverse osmosis membrane filter core; a cleaning assembly capable of delivering cleaning liquid to the reverse osmosis membrane filter core to clean the reverse osmosis membrane filter core; and a flow rate detection member for detecting a pure water flow rate of a pure water end of the reverse osmosis membrane filter core, wherein the flow rate detection member is in communication connection with the cleaning assembly.

2. The water purification apparatus according to claim 1, characterized by The cleaning assembly comprises a first cleaning module and a second cleaning module, wherein the flow rate detection member is in communication connection with the first cleaning module, so as to selectively cause the first cleaning module to clean the reverse osmosis membrane filter core according to detection data of the flow rate detection member; the flow rate detection member is also in communication connection with the second cleaning module, so as to selectively cause the second cleaning module to clean the reverse osmosis membrane filter core according to detection data of the flow rate detection member after the first cleaning module cleans the reverse osmosis membrane filter core.

3. The water purification apparatus according to claim 2, characterized by The cleaning assembly has a cleaning inlet and a cleaning outlet, wherein the cleaning inlet is in communication with the water inlet main line, so that water in the water inlet main line enters the cleaning agent storage member through the cleaning inlet to form the cleaning liquid; and / or, the cleaning assembly has a cleaning outlet in communication with the water inlet main line, so that the cleaning liquid in the cleaning agent storage member enters the reverse osmosis membrane filter core through the water inlet main line.

4. The water purification apparatus according to claim 3, characterized by The first cleaning module comprises a first cleaning pipe, a first cleaning valve arranged on the first cleaning pipe, and a first cleaning agent storage member, and the second cleaning module comprises a second cleaning pipe, a second cleaning valve arranged on the second cleaning pipe, and a second cleaning agent storage member, a first end of the first cleaning pipe and the second cleaning pipe converges and is in communication with the cleaning inlet, a second end of the first cleaning pipe and the second cleaning pipe converges and is in communication with the cleaning outlet, the first cleaning agent storage member is located at a downstream end of the first cleaning valve, and the second cleaning agent storage member is located at a downstream end of the second cleaning valve, wherein the flow rate detection member is in communication connection with the first cleaning valve and the second cleaning valve.

5. The water purification apparatus according to claim 1, characterized by The water purification device further comprises a pure water outlet pipe and a pure water water member, the pure water water member is in communication with the pure water end of the reverse osmosis membrane filter core through the pure water outlet pipe, wherein the flow rate detection member is arranged on the pure water outlet pipe; or the flow rate detection member is arranged at a downstream end of the pure water water member.

6. The water purification apparatus according to claim 5, characterized by The water purification device further comprises a backflow pipe and a backflow valve, a first end of the backflow pipe is capable of being in communication with the pure water end of the reverse osmosis membrane filter core, a second end of the backflow pipe is in communication with the water inlet main line, and the backflow valve is arranged on the backflow pipe and is used for controlling opening and closing of the backflow pipe, wherein the flow rate detection member is arranged on the pure water outlet pipe and located at an upstream end of the backflow pipe.

7. The water purification apparatus according to claim 5, wherein The water purification device further comprises a waste water outlet pipe, a drain pipe, and a drain valve arranged on the drain pipe, the waste water outlet pipe is communicated with the waste water end of the reverse osmosis membrane filter core, one end of the drain pipe is communicated with the pure water outlet pipe, the other end of the drain pipe is communicated with the waste water outlet pipe, The flow rate detection component is arranged on the pure water outlet pipe and located at the upstream end of the drain pipe.

8. The water purification apparatus according to any one of claims 1 to 7, characterized by The water purification device further comprises a circulation pipe, a first end of the circulation pipe is communicated with the waste water end of the reverse osmosis membrane filter core, a second end of the circulation pipe is communicated with the cleaning assembly, so that the cleaning assembly, the water inlet end of the reverse osmosis membrane filter core, and the waste water end of the reverse osmosis membrane filter core are sequentially communicated to form a cleaning loop, and the water purification device is arranged to be capable of driving the cleaning liquid to circulate in the cleaning loop.

9. The water purification apparatus according to claim 8, characterized by The water purification device further comprises a circulation pump and a booster pump, the cleaning outlet of the cleaning assembly is communicated with the water inlet main circuit and located at the downstream end of the booster pump, and the circulation pump is arranged on the cleaning loop and used to drive the cleaning liquid to circulate in the cleaning loop.

10. The water purification apparatus of claim 1, wherein The flow rate detection component is a flow meter; And / or, the water purification device further comprises a waste water outlet pipe and a waste water valve arranged on the waste water outlet pipe, and the flow rate detection component is communicatively connected with the waste water valve.

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