Water purification equipment

Abstract

The utility model relates to the technical field of water purification, in particular to water purification equipment, and aims to solve the problem that the use experience of a user is poor due to the fact that an existing cleaning assembly cannot sterilize a reverse osmosis membrane filter element. The water purification equipment comprises a reverse osmosis membrane filter element and a cleaning assembly, the cleaning assembly is provided with a cleaning module and a sterilization module, and the cleaning module is used for storing a cleaning agent and can convey a cleaning solution to the reverse osmosis membrane filter element so as to remove dirt on the reverse osmosis membrane filter element; the sterilizing module is used for storing a sterilizing agent and can be used for conveying a sterilizing solution to the reverse osmosis membrane filter element so as to sterilize the reverse osmosis membrane filter element. The reverse osmosis membrane filter element can be cleaned through the cleaning agent, dirt attached to the reverse osmosis membrane filter element can be removed, the service life of the reverse osmosis membrane filter element can be prolonged, the reverse osmosis membrane filter element is sterilized through the sterilizing agent, the situation that the water drinking health of a user is affected due to bacterium breeding in the reverse osmosis membrane filter element is avoided, and the water drinking quality of the user is improved. And the use experience of the user is greatly 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, water purification integrated machine gradually becomes the necessary drinking water facilities 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, cleaning the reverse osmosis membrane filter element with a cleaning liquid can remove the dirt on the surface of the reverse osmosis membrane filter element, but since the dirt contains a large number of microorganisms, if the reverse osmosis membrane filter element is not sterilized, it will affect the user's drinking water safety. The existing water purification equipment can only clean the dirt on the reverse osmosis membrane filter element, but cannot sterilize the reverse osmosis membrane filter element after cleaning, resulting in poor user experience. SUMMARY

[0005] The utility model aims to at least solve the above technical problems to some extent, that is, at least solve the problem that the existing cleaning assembly cannot sterilize the reverse osmosis membrane filter element, resulting in poor user experience.

[0006] In a first aspect, the utility model provides a water purification equipment, which comprises a reverse osmosis membrane filter element and a cleaning assembly, the cleaning assembly has a cleaning module and a sterilization module, wherein the cleaning module is used for storing a cleaning agent and can deliver a cleaning liquid to the reverse osmosis membrane filter element to remove the dirt on the reverse osmosis membrane filter element, and the sterilization module is used for storing a sterilizing agent and can deliver a sterilizing liquid to the reverse osmosis membrane filter element to sterilize the reverse osmosis membrane filter element.

[0007] In the preferred technical scheme of the water purification device, the water inlet main path of the water purification device is communicated with the water inlet end of the reverse osmosis membrane filter core, wherein the cleaning assembly has a cleaning inlet, the cleaning module and / or the sterilization module can be communicated with the cleaning inlet, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning module and / or the sterilization module, so as to dissolve the cleaning agent and / or the sterilization agent and form a cleaning liquid and / or a sterilization liquid; and / or the cleaning assembly has a cleaning outlet, the cleaning outlet is communicated with the water inlet main path, the cleaning module and / or the sterilization module can be communicated with the cleaning outlet, the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid and / or the sterilization liquid in the cleaning module and / or the sterilization module enters the reverse osmosis membrane filter core.

[0008] In the preferred technical scheme of the water purification device, the water purification device further comprises a booster pump arranged on the water inlet main path, and the booster pump is located at the upstream end of the cleaning outlet.

[0009] In the preferred technical scheme of the water purification device, the water purification device further comprises a pre-filter unit, and the water outlet end of the pre-filter unit is communicated with the water inlet main path, and the cleaning inlet is located at the downstream end of the pre-filter unit.

[0010] In the preferred technical scheme of the water purification device, the cleaning assembly comprises a cleaning pipeline, a cleaning valve and a cleaning agent storage member arranged on the cleaning pipeline, a sterilization pipeline arranged in parallel with the cleaning pipeline, and a sterilization valve and a sterilization agent storage member arranged on the sterilization pipeline, the first end of the cleaning pipeline and the first end of the sterilization pipeline are communicated and communicated with the cleaning inlet, the second end of the cleaning pipeline and the second end of the sterilization pipeline are communicated and communicated with the cleaning outlet, wherein the cleaning agent storage member is located at the downstream end of the cleaning valve and is used to store an acidic cleaning agent or an alkaline cleaning agent, and the sterilization agent storage member is located at the downstream end of the sterilization valve.

[0011] In the preferred technical scheme of the water purification device, the number of the cleaning pipelines is at least two, and a plurality of the cleaning pipelines are arranged in parallel, and the cleaning valve and the cleaning agent storage member are arranged one by one corresponding to the cleaning pipeline; and / or the number of the sterilization pipelines is at least two, and a plurality of the sterilization pipelines are arranged in parallel, and the sterilization valve and the sterilization agent storage member are arranged one by one corresponding to the sterilization pipeline.

[0012] In the preferred technical solution of the water purifying device, the cleaning assembly further comprises a one-way valve arranged on the cleaning pipeline and / or the sterilization pipeline and located between the cleaning outlet and the cleaning agent storage member and / or the sterilization agent storage member, and the one-way valve is arranged to prevent the water in the water inlet main pipeline from flowing back to the cleaning agent storage member and / or the sterilization agent storage member through the cleaning outlet.

[0013] In the preferred technical solution of the water purifying device, the water purifying device further comprises a pure water outlet pipe, and the pure water end of the reverse osmosis membrane filter core is in communication with the pure water outlet pipe, wherein the water purifying device further comprises a backflow pipe and a backflow valve, the first end of the backflow pipe is in communication with the pure water outlet pipe, the second end of the backflow pipe is in communication with the upstream end of the booster pump of the water purifying device, and the backflow valve is arranged on the backflow pipe and used to control the opening and closing of the backflow pipe.

[0014] In the preferred technical solution of the water purifying device, the water purifying device further comprises a pure water outlet pipe, and the pure water end of the reverse osmosis membrane filter core is in communication with the pure water outlet pipe, wherein the water purifying device further comprises a backflow pipe and a backflow valve, the first end of the backflow pipe is in communication with the pure water outlet pipe, the second end of the backflow pipe is in communication with the upstream end of the booster pump of the water purifying device, and the backflow valve is arranged on the backflow pipe and used to control the opening and closing of the backflow pipe.

[0015] In the preferred technical solution of the water purifying device, the water purifying device further comprises an auxiliary cleaning member arranged to promote the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core so as to make the dirt fall off the reverse osmosis membrane filter core.

[0016] In the preferred technical solution, the cleaning assembly is provided with a cleaning agent storage member and a sterilization agent storage member, the cleaning agent stored in the cleaning agent storage member can be used to clean the reverse osmosis membrane filter core and remove the dirt attached to the reverse osmosis membrane filter core, which helps to prolong the service life of the reverse osmosis membrane filter core, and the sterilization agent stored in the sterilization agent storage member can be used to sterilize the reverse osmosis membrane filter core, which avoids the influence of the bacteria breeding in the reverse osmosis membrane filter core on the drinking water health of the user and greatly improves the user experience.

[0017] Further, the booster pump is arranged at the upstream end of the cleaning outlet, which can avoid the cleaning liquid or the sterilization liquid flowing through the booster pump, thereby avoiding the corrosion of the diaphragm in the booster pump by the cleaning liquid or the sterilization liquid, and helps to prolong the service life of the booster pump.

[0018] Further, by arranging the one-way valve on the cleaning pipeline and / or the sterilization pipeline, when the water purification device is in the normal water production mode, the water in the water inlet main pipeline can be prevented from flowing back into the cleaning agent storage member and / or the sterilization agent storage member, so that the cleaning agent and / or the sterilization agent is prevented from dissolving and entering into the reverse osmosis membrane filter core in the normal water production mode.

[0019] Further, by arranging the cleaning inlet at the downstream end of the pre-filtering unit, the purified water filtered by the pre-filtering unit can enter into the cleaning agent storage member (or the sterilization agent storage member) through the cleaning inlet, and the cleaning agent (or the sterilization agent) is dissolved by the purified water filtered by the pre-filtering unit, so that the solubility of the cleaning agent (or the sterilization agent) and the cleanliness of the cleaning liquid (or the sterilization agent) are improved, and the cleaning effect (or the sterilization effect) of the reverse osmosis membrane filter core is effectively improved.

[0020] Further, by arranging the auxiliary cleaning member, the cleaning liquid is more conducive to physically or chemically reacting with the dirt on the reverse osmosis membrane filter core, so that the dirt on the reverse osmosis membrane filter core is more easily removed, the cleaning efficiency and the cleaning effect of the reverse osmosis membrane filter core are further improved, and the user experience is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0022] Figure 1 is a structural schematic view of an embodiment one of the water purification device of the present application;

[0023] Figure 2 is a structural schematic view of an embodiment two of the water purification device of the present application;

[0024] Figure 3 is a structural schematic view of an embodiment three of the water purification device of the present application;

[0025] Figure 4 is a structural schematic view of an embodiment four of the water purification device of the present application;

[0026] Figure 5 is a flow chart of the control method for the water purification device of the present application;

[0027] Figure 6 is a flow chart of an embodiment of the control method for the water purification device of the present application.

[0028] LIST OF REFERENCE NUMERALS

[0029] 1, water inlet main road; 11, water inlet valve; 12, booster pump; 2, reverse osmosis membrane filter element; 21, waste water outlet pipe; 211, waste water valve; 212, flushing water detection component; 22, drain pipe; 221, drain valve; 23, backflow pipe; 231, backflow valve; 301, cleaning inlet; 302, cleaning outlet; 311, first cleaning pipe; 312, first cleaning valve; 313, first cleaning agent storage component; 321, second cleaning pipe; 322, second cleaning valve; 323, second cleaning agent storage component; 331, sterilization pipe; 332, sterilization valve; 333, sterilization agent storage component; 34, one-way valve; 4, pre-filter unit; 5, pure water outlet pipe; 51, pure water component; 52, water quality detection component. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0031] It should be noted that in the description of the present application, 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, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting" should be understood in a broad sense, 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 present application can be understood according to the specific circumstances.

[0033] Based on the problem that the existing water purification equipment mentioned in the background art has the risk of residual cleaning agent after cleaning by the cleaning assembly, resulting in poor user experience, the present application provides a water purification equipment.

[0034] As Figures 1 to 4 shown, the water purification equipment of the present application comprises a reverse osmosis membrane filter element 2 and a cleaning assembly, the cleaning assembly has a cleaning module and a sterilization module connected in parallel, the cleaning agent module is used for storing cleaning agent and can deliver cleaning liquid to the reverse osmosis membrane filter element 2, so as to remove dirt on the reverse osmosis membrane filter element 2, and the sterilization module is used for storing sterilization agent and can deliver sterilization liquid to the reverse osmosis membrane filter element 2, so as to sterilize the reverse osmosis membrane filter element 2.

[0035] By configuring the cleaning component to include both a cleaning module and a sterilization module, the cleaning module can clean the reverse osmosis membrane filter element 2, removing the dirt attached to it and helping to extend its service life. Since the dirt contains a large number of microorganisms, the sterilization module sterilizes the cleaned reverse osmosis membrane filter element 2, preventing the growth of bacteria inside the filter element 2 from affecting the user's drinking water health and greatly improving the user experience.

[0036] It should be noted that in practical applications, this utility model can first use the cleaning agent in the cleaning agent storage component to clean the reverse osmosis membrane filter element 2. After removing the dirt attached to the reverse osmosis membrane filter element 2, the bactericide in the bactericide storage component 333 can then be used to sterilize the reverse osmosis membrane filter element 2. This can thoroughly sterilize the cleaned reverse osmosis membrane filter element 2 and help regenerate it. Alternatively, the bactericide in the bactericide storage component 333 can be used periodically to sterilize the reverse osmosis membrane filter element 2, and so on. Such flexible adjustments and changes 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.

[0037] It should be noted that, in practical applications, this utility model does not impose any limitations on the way the cleaning module and the sterilization module respectively deliver cleaning liquid and sterilization liquid to the reverse osmosis membrane filter element 2. For example, the cleaning component can be configured to have a cleaning outlet 302, which is connected to the main water inlet 1 of the water purification equipment. Both the cleaning module and the sterilization module can be connected to the cleaning outlet 302. Alternatively, the reverse osmosis membrane filter element 2 can be configured to have two water inlets, and the cleaning component can have a cleaning outlet 302, wherein the main water inlet 1 and the cleaning outlet 302 are respectively connected to the two water inlets, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0038] Preferably, such as Figures 1 to 4 As shown, the water purification equipment of this utility model also includes a main water inlet 1, which is connected to the water inlet end of the reverse osmosis membrane filter element 2. The cleaning component has a cleaning outlet 302, which is connected to the main water inlet 1. Both the cleaning module and the sterilization module can be connected to the cleaning outlet 302.

[0039] It should be noted that in practical applications, this utility model does not limit the specific connection position between the cleaning outlet 302 and the main water inlet 1. For example, the cleaning outlet 302 can be set at the upstream end of the booster pump 12, or it can be set at the downstream end of the booster pump 12, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0040] Preferably, such as Figures 1 to 4 As shown, the water purification equipment of this utility model also includes a booster pump 12 installed on the main water inlet 1, and the booster pump 12 is located at the upstream end of the clean outlet 302.

[0041] Since cleaning solutions are mostly acidic or alkaline, and disinfectants are mostly oxidizing or reducing substances, long-term research by the inventors has revealed that both cleaning solutions and disinfectants can damage the diaphragm inside the booster pump 12, affecting its service life. By positioning the booster pump 12 upstream of the cleaning outlet 302, the flow of cleaning solutions or disinfectants through the booster pump 12 can be prevented, thus avoiding corrosion of the diaphragm inside the booster pump 12 and helping to extend its service life.

[0042] It should be noted that in practical applications, the cleaning component can be configured to have only a cleaning outlet 302, with the cleaning liquid stored directly in the cleaning module and the disinfectant stored in the disinfection module. Alternatively, the cleaning component can also be configured to have a cleaning inlet 301, which is connected to the main water inlet 1. Water from the main water inlet 1 enters the cleaning module to dissolve the stored cleaning agent to form a cleaning liquid, and water from the main water inlet 1 enters the disinfection module to dissolve the stored disinfectant to form a disinfectant. Alternatively, the cleaning inlet 301 can be located on the cleaning module and / or the disinfection module, allowing the user to inject water into the cleaning inlet 301 to dissolve the cleaning agent or disinfectant. Such adjustments and changes to the specific configuration of the cleaning agent storage component and the disinfectant storage component 333 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0043] Preferably, such as Figures 1 to 4 As shown, the cleaning component of this utility model also has a cleaning inlet 301, which is connected to the main water inlet 1. The cleaning module (or sterilization module) can be connected to the cleaning inlet 301. The cleaning inlet 301 is connected to the main water inlet 1 so that the water in the main water inlet 1 can enter the cleaning module (or sterilization module) to dissolve the cleaning agent (or sterilizer) and form a cleaning liquid (or sterilization liquid).

[0044] By configuring the cleaning component with both a cleaning inlet 301 and a cleaning outlet 302, compared to configuring the cleaning component with only a cleaning outlet 302, it is possible to avoid storing a large amount of cleaning fluid or disinfectant inside the cleaning component, which would result in an excessively large cleaning component and further improve the user experience.

[0045] Preferably, such as Figures 1 to 4As shown, the cleaning module comprises a cleaning pipeline, a cleaning valve arranged on the cleaning pipeline, and a cleaning agent storage member, the cleaning agent storage member is located at the downstream end of the cleaning valve and is used to store an acidic cleaning agent or an alkaline cleaning agent, the sterilization module comprises a sterilization pipeline 331, a sterilization valve 332 arranged on the sterilization pipeline 331, and a sterilization agent storage member 333, the sterilization agent storage member 333 is located at the downstream end of the sterilization valve 332 and is used to store a sterilization agent, the first end of the cleaning pipeline and the first end of the sterilization pipeline 331 meet and communicate with the cleaning inlet 301, and the second end of the cleaning pipeline and the second end of the sterilization pipeline 331 meet and communicate with the cleaning outlet 302.

[0046] It should be noted that it is not limited to the first end of the cleaning pipeline and the first end of the sterilization pipeline 331 meeting and communicating with the cleaning inlet 301, and the second end of the cleaning pipeline and the second end of the sterilization pipeline 331 meeting and communicating with the cleaning outlet 302, for example, the cleaning pipeline and the sterilization pipeline 331 can also be arranged as two independent pipelines, 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 first end of the cleaning pipeline and the first end of the sterilization pipeline 331 meet and communicate with the cleaning inlet 301, and the second end of the cleaning pipeline and the second end of the sterilization pipeline 331 meet and communicate with the cleaning outlet 302.

[0047] It should be noted that in actual application, the number of cleaning pipelines can be set to one, or the number of cleaning pipelines can be set to two, the cleaning valve and the cleaning agent storage member are also two and are arranged one by one corresponding to the cleaning pipeline, or the number of cleaning pipelines can be set to multiple, the cleaning valve and the cleaning agent storage member are also multiple and are arranged one by one corresponding to the cleaning pipeline, etc., such adjustment and change of the specific number of cleaning pipelines, cleaning valves and cleaning agent storage members does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0048] Exemplarily, as shown in Figure 1 and Figure 3 The cleaning module comprises a first cleaning pipeline 311, a first cleaning valve 312 arranged on the first cleaning pipeline 311, and a first cleaning agent storage member 313.

[0049] Preferably, the number of cleaning pipelines is at least two and multiple cleaning pipelines are arranged in parallel, the cleaning valve and the cleaning agent storage member are arranged one by one corresponding to the cleaning pipeline, and the cleaning agent storage members on different cleaning pipelines are used to store different types of cleaning agents.

[0050] Through the arrangement, different types of cleaning agents can be stored in the cleaning agent storage members on different cleaning pipelines, so that the reverse osmosis membrane filter element 2 can be cleaned more thoroughly, and the cleaning effect is improved.

[0051] Two cleaning pipelines are taken as examples for introduction.

[0052] As shown in Figure 2 and Figure 4 , the cleaning module comprises a first cleaning pipeline 311, a second cleaning pipeline 321, a first cleaning valve 312 and a first cleaning agent storage member 313 arranged on the first cleaning pipeline 311, and a second cleaning valve 322 and a second cleaning agent storage member 323 arranged on the second cleaning pipeline 321, wherein the first cleaning agent storage member 313 is used for storing an acidic cleaning agent, and the second cleaning agent storage member 323 is used for storing an alkaline cleaning agent.

[0053] It should be noted that the specific type of the acidic cleaning agent is not limited in the utility model, for example, the acidic cleaning agent can be arranged as at least one of malic acid, citric acid, hydrochloric acid and phosphoric acid, of course, the acidic cleaning agent can also be other types of acidic solution, and a person skilled in the art can adjust according to actual needs.

[0054] Preferably, the acidic cleaning agent is malic acid or citric acid, which has good disinfection and bacteriostasis effect while cleaning dirt, and can disinfect and bacteriostasis the reverse osmosis membrane filter element 2.

[0055] It should be noted that the specific type of the alkaline cleaning agent is not limited in the utility model, for example, the alkaline cleaning agent can be arranged as 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 and sodium bisulfite, of course, the second cleaning liquid can also be other types of alkaline solution, and a person skilled in the art can adjust according to actual needs.

[0056] Specifically, when the reverse osmosis membrane filter element 2 is cleaned, the first cleaning valve 312 (or the second cleaning valve 322) is opened, water in the water inlet main pipeline 1 enters the cleaning agent storage member 33 through the cleaning inlet 301, the cleaning agent in the first cleaning agent storage member 313 (or the second cleaning agent storage member 323) is dissolved to form a cleaning liquid, and then the cleaning liquid is delivered to the reverse osmosis membrane filter element 2 through the cleaning outlet 302, so that the reverse osmosis membrane filter element 2 is soaked to make the cleaning liquid act on dirt on the reverse osmosis membrane filter element 2, and the dirt on the reverse osmosis membrane filter element 2 is cleaned.

[0057] It should be noted that when the reverse osmosis membrane filter element 2 is cleaned, the reverse osmosis membrane filter element 2 can be cleaned with an acidic cleaning agent first, and then cleaned with an alkaline cleaning agent, or the reverse osmosis membrane filter element 2 can be cleaned with an alkaline cleaning agent first, and then cleaned with an acidic cleaning agent, and the like. 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.

[0058] The cleaning process of the reverse osmosis membrane filter element 2 will be introduced below by taking the example of first cleaning the reverse osmosis membrane filter element 2 with an acidic cleaning agent, and then cleaning the reverse osmosis membrane filter element 2 with an alkaline cleaning agent.

[0059] As shown in Figure 2 and Figure 4 , open the first cleaning valve 312, and keep the second cleaning valve 322 closed, so that the water in the water inlet main line 1 enters the first cleaning pipe 311, and forms a first cleaning liquid (i.e. an acidic solution) in the first cleaning agent storage member 313, which is then discharged through the cleaning outlet 302 and delivered into the reverse osmosis membrane filter element 2 to soak the reverse osmosis membrane filter element 2 and remove inorganic dirt on the reverse osmosis membrane filter element 2. After cleaning is completed, the liquid in the reverse osmosis membrane filter element 2 is discharged and rinsed, and then the first cleaning valve 312 is closed and the second cleaning valve 322 is opened, so that the water in the water inlet main line 1 enters the second cleaning pipe 321, and forms a second cleaning liquid (i.e. an alkaline solution) in the second cleaning agent storage member 323, which is then discharged through the cleaning outlet 302 and delivered into the reverse osmosis membrane filter element 2 to soak the reverse osmosis membrane filter element 2 and remove organic dirt on the reverse osmosis membrane filter element 2.

[0060] It should be further noted that in actual application, the number of sterilization pipelines 331 can be set to one, or the number of sterilization pipelines 331 can be set to two, the two sterilization pipelines 331 are arranged in parallel, and the sterilization valve 332 and the sterilization agent storage member 333 are arranged one by one corresponding to the sterilization pipeline 331, or the number of sterilization pipelines 331 can be set to multiple, the multiple sterilization pipelines 331 are arranged in parallel, and the sterilization valve 332 and the sterilization agent storage member 333 are arranged one by one corresponding to the sterilization pipeline 331, and the like. Such adjustment and change of the specific number of sterilization pipelines 331 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0061] Preferably, the number of sterilization pipelines 331 is at least two, the multiple sterilization pipelines 331 are arranged in parallel, and the sterilization valve 332 and the sterilization agent storage member 333 are arranged one by one corresponding to the sterilization pipeline 331.

[0062] This setup allows the sterilization component to use different types of sterilizing agents to clean the reverse osmosis membrane filter element 2, thereby improving the sterilization effect on the reverse osmosis membrane filter element 2.

[0063] It should be noted that this utility model does not limit the specific type of bactericide. For example, the bactericide can be at least one of hydrogen peroxide, peracetic acid, copper sulfate, formaldehyde, sodium bisulfite, and sodium hypochlorite, etc. Such adjustments and changes to the specific type of bactericide do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0064] Preferably, the bactericide includes at least one of hydrogen peroxide, peracetic acid, copper sulfate, formaldehyde, sodium bisulfite, and sodium hypochlorite.

[0065] For example, the bactericide is a mixture of hydrogen peroxide and peracetic acid.

[0066] Preferably, such as Figures 1 to 4 As shown, the cleaning assembly also includes a one-way valve 34 disposed on the cleaning line and / or sterilization line 331. The one-way valve 34 is disposed between the cleaning outlet 302 and the cleaning agent storage component and / or sterilization agent storage component 333 and can prevent water downstream of the cleaning agent storage component and / or sterilization agent storage component 333 from flowing back into the cleaning agent storage component and / or sterilization agent storage component 333.

[0067] By setting a one-way valve 34, when the water purification equipment is in normal water production mode, it can prevent water in the main inlet pipe 1 from flowing back through the cleaning outlet 302 into the cleaning agent storage component and / or the disinfectant storage component 333, thereby preventing the cleaning agent and disinfectant from dissolving prematurely. At the same time, when the cleaning module cleans the reverse osmosis membrane filter element 2, the one-way valve 34 on the disinfection pipeline 331 can also prevent the cleaning liquid from flowing back into the disinfectant storage component 333, thereby preventing the disinfectant from dissolving prematurely. When the disinfection module disinfects the reverse osmosis membrane filter element 2, the one-way valve 34 on the cleaning pipeline can also prevent the disinfectant liquid from flowing back into the cleaning agent storage component, thereby preventing the cleaning agent from dissolving prematurely. This helps to improve the storage time of the cleaning agent and disinfectant and avoids affecting the subsequent cleaning or disinfection effect.

[0068] It should be noted that in practical applications, the method is not limited to preventing premature dissolution of the cleaning agent or disinfectant by setting a one-way valve 34. For example, a check valve structure can be set in the cleaning agent storage component 33 to prevent water in the main water inlet 1 from entering the cleaning agent storage component 33 through the cleaning outlet 302, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, it is preferable to prevent premature dissolution of the cleaning agent or disinfectant by setting a one-way valve.

[0069] Preferably, as shown in Figures 1 to 4 The water purification equipment further comprises a pre-filter unit 4, the water outlet end of the pre-filter unit 4 is communicated with the water inlet main path 1, and the cleaning inlet 301 is located at the downstream end of the pre-filter unit 4.

[0070] By such a setting, that is, by setting the cleaning inlet 301 to be located at the downstream end of the pre-filter unit 4, the purified water filtered by the pre-filter unit 4 can enter the cleaning agent storage member 33 (or the sterilizing agent storage member 333) through the cleaning inlet 301, and the cleaning agent (or the sterilizing agent) is dissolved by the purified water filtered by the pre-filter unit 4, so that the solubility of the cleaning agent (or the sterilizing agent) and the cleanliness of the cleaning liquid (or the sterilizing agent) are improved, thereby effectively improving the cleaning effect (or the sterilization effect) of the reverse osmosis membrane filter core 2.

[0071] It should be noted that in actual application, the pre-filter unit 4 can be set as a pre-filter core, or the pre-filter unit 4 can be set as a composite filter core including a pre-filter core and a post-filter core, and the like, and such adjustment and change of the specific type of the pre-filter 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.

[0072] Preferably, the pre-filter unit 4 is a pre-filter core.

[0073] Preferably, as shown in Figures 1 to 4 The water purification equipment 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.

[0074] By such a setting, 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 controlling the water inlet valve 11, so as to avoid diluting the cleaning liquid entering the reverse osmosis membrane filter core 2.

[0075] 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, and the like, and 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 scope 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.

[0076] It should be 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, and the like, and the adjustment and change of the specific arrangement position of the booster pump 12 and the water inlet valve 11 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0077] Preferably, as shown in the drawings, 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. Figures 1 to 4

[0078] 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 arranged at the downstream end of the booster pump 12, so that the water in the water inlet main line 1 can be pumped into the cleaning assembly and delivered into the reverse osmosis membrane filter element 2 through the booster pump 12, thereby improving the cleaning efficiency and cleaning effect.

[0079] Preferably, as shown in the drawings, 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. Figures 1 to 4

[0080] It should be 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, and the like, and the adjustment and change of the specific arrangement position of the booster pump 12 and the water inlet valve 11 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0081] Preferably, the water outlet member 51 is a post-filter.

[0082] Preferably, the water purification device further comprises an auxiliary cleaning member (not shown in the drawings), which is arranged to promote the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter element 2, thereby removing the dirt from the reverse osmosis membrane filter element 2.

[0083] ​​By setting the auxiliary cleaning member, the physical or chemical action of the cleaning liquid on the dirt on the reverse osmosis membrane filter element 2 can be facilitated, thereby facilitating the removal of the dirt from the reverse osmosis membrane filter element 2, further improving the cleaning efficiency and cleaning effect of the reverse osmosis membrane filter element 2, and further improving the user experience.

[0084] It should be noted that in actual application, the specific setting type of the auxiliary cleaning member is not limited in the utility model, as long as the cleaning liquid can act on the dirt on the reverse osmosis membrane filter element 2 to remove the dirt from the reverse osmosis membrane filter element 2.

[0085] In one specific embodiment, the auxiliary cleaning member comprises a heating module, wherein the heating module is arranged on the cleaning circuit.

[0086] By such a setting, the hot cleaning liquid is delivered into the reverse osmosis membrane filter element 2, which can facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter element 2, thereby facilitating the removal of the dirt; in addition, by setting the heating module, the dissolution of the cleaning agent can also be facilitated, thereby improving the dissolution speed and solubility of the cleaning agent, and further improving the user experience.

[0087] It should be noted that the specific setting position of the heating module on the cleaning circuit is not limited in the utility model, for example, the heating module can be arranged on the cleaning pipeline, or the heating module can also be arranged on the circulating pipe, or the heating module can also be arranged outside the cleaning agent storage member 33, and the like, and the adjustment and change of the specific setting position of the heating module do not deviate from the principles and scope of the utility model, and should be included in the protection scope of the utility model.

[0088] In another specific embodiment, the auxiliary cleaning member comprises an ultrasonic module, wherein the ultrasonic module is arranged outside the reverse osmosis membrane filter element 2 and can cause high-frequency low-amplitude vibration of the reverse osmosis membrane filter element 2, thereby facilitating the removal of the dirt on the reverse osmosis membrane filter element 2.

[0089] In another specific embodiment, the auxiliary cleaning member comprises a bubble generator, wherein the bubble generator can generate bubbles, and the bubbles can facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter element 2, thereby facilitating the removal of the dirt.

[0090] In the second aspect, the utility model further provides a control method for a water purification equipment.

[0091] Specifically, as shown in Figure 5 the control method of the utility model comprises the following steps:

[0092] S1: making the cleaning module deliver cleaning liquid to the reverse osmosis membrane filter element 2;

[0093] S2: soaking the cleaning liquid to the reverse osmosis membrane filter core 2 for a first preset time, and discharging the cleaning liquid from the reverse osmosis membrane filter core 2;

[0094] S3: making the sterilization module deliver the sterilization liquid to the reverse osmosis membrane filter core 2;

[0095] S4: soaking the sterilization liquid to the reverse osmosis membrane filter core 2 for a second preset time, and discharging the sterilization liquid from the reverse osmosis membrane filter core 2.

[0096] Through such a setting, the cleaning agent storage member can be first communicated with the water inlet end of the reverse osmosis membrane filter core 2, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core 2 to clean the reverse osmosis membrane filter core 2, and after the cleaning is completed, the sterilization agent storage member 333 is communicated with the water inlet end of the reverse osmosis membrane filter core 2, so that the sterilization liquid enters the reverse osmosis membrane filter core 2 to sterilize the reverse osmosis membrane filter core 2, thereby the reverse osmosis membrane filter core 2 can be more thoroughly sterilized after removing the dirt on the reverse osmosis membrane filter core 2, and the use experience of the user is further improved.

[0097] It should be noted that in actual application, the specific setting determination manner of the first preset time is not limited in the utility model, for example, the first preset time can be determined by the time length input by the user on the control panel, or the first preset time can be determined according to the operation parameter of the water purification equipment, or the first preset time can be set as a fixed time length and implanted into the controller of the water purification equipment, and the first preset time is obtained by obtaining the data implanted in the controller, and the like, and the adjustment and change of the specific setting type of the first preset time do 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, before the cleaning liquid is soaked, the control method of the utility model further comprises the following steps:

[0099] obtaining the operation parameter of the water purification equipment;

[0100] determining the first preset time according to the operation parameter;

[0101] The operation parameter includes at least one of the water inlet water quality of the reverse osmosis membrane filter core 2, the total water production of the reverse osmosis membrane filter core 2, the cumulative operation time length of the water purification equipment, the continuous time length of the pure waste ratio of the reverse osmosis membrane filter core 2 being higher than the set pure waste ratio, the continuous water production time length of the reverse osmosis membrane filter core 2 after the service life of the pre-filter core is reached, the pure water flow rate of the reverse osmosis membrane filter core 2, and the differential pressure before and after the membrane of the reverse osmosis membrane filter core 2.

[0102] By setting the first preset time according to the operating parameters of the water purification device, the degree of contamination of the reverse osmosis membrane filter element 2 can be evaluated according to the operating parameters, and then the cleaning time of the cleaning liquid on the reverse osmosis membrane filter element 2 can be determined according to the degree of contamination. On the one hand, it can avoid the problem of incomplete cleaning due to the too short cleaning time caused by the high degree of contamination of the reverse osmosis membrane filter element 2. On the other hand, it can avoid the problem of energy waste caused by the too long cleaning time due to the low degree of contamination of the reverse osmosis membrane filter element 2.

[0103] It should be noted that in actual application, those skilled in the art can determine the first preset time according to only one of the above-mentioned operating parameters, or can determine the first preset time according to part of the above-mentioned operating parameters, and the like. Such 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.

[0104] Preferably, the step of "determining the first preset time according to the operating parameters" specifically comprises:

[0105] predicting the degree of contamination A of the reverse osmosis membrane filter element 2 according to the first operating parameter;

[0106] determining the degree of blockage B of the reverse osmosis membrane filter element 2 according to the second operating parameter;

[0107] determining the first preset time according to the degree of contamination A and the degree of blockage B.

[0108] Specifically, the step of "determining the first preset time according to the degree of contamination A and the degree of blockage B" specifically comprises:

[0109] comparing the degree of contamination A with a preset degree of contamination A1;

[0110] comparing the degree of blockage B with a preset degree of blockage B1;

[0111] if A

[0112] if A

[0113] if A

[0114] wherein T1

[0115] The first operation parameter can predict the pollution degree of the reverse osmosis membrane filter core 2, the second operation parameter can reflect the pollution degree of the reverse osmosis membrane filter core 2, and the soaking time of the cleaning liquid to the reverse osmosis membrane filter core 2 can be accurately determined according to the pollution degree and the pollution degree, so that the reverse osmosis membrane filter core 2 can be cleaned thoroughly.

[0116] It should be noted that in actual application, the specific setting mode of the second preset time is not limited in the utility model, for example, the second preset time can be determined by the time length input by the user on the control panel, or the second preset time can be determined according to the water quality information of the cleaning liquid when the cleaning liquid is discharged from the reverse osmosis membrane filter core 2, or the second preset time can be set as a fixed time length and implanted into the controller of the water purification equipment, and the second preset time can be obtained by obtaining the data implanted in the controller, and the like, and the adjustment and change of the specific setting type of the second preset time do not deviate from the principles and ranges of the utility model, and should be included in the protection scope of the utility model.

[0117] Preferably, during the process of discharging the cleaning liquid from the reverse osmosis membrane filter core 2, the control method further comprises the following steps:

[0118] Obtaining the water quality information of the cleaning liquid;

[0119] Determining the second preset time according to the water quality information.

[0120] Through such a setting, when the cleaning of the reverse osmosis membrane filter core 2 by the cleaning liquid is completed, the dirt on the reverse osmosis membrane filter core 2 all enters the cleaning liquid and is discharged from the reverse osmosis membrane filter core 2, the amount of dirt falling off from the reverse osmosis membrane filter core 2 can be judged by obtaining the water quality information of the cleaning liquid, and the sterilization time of the sterilizing liquid for sterilizing the reverse osmosis membrane filter core 2 can be determined according to the actual pollution condition of the reverse osmosis membrane filter core 2, so that the reverse osmosis membrane filter core 2 can be sterilized more effectively.

[0121] It should be noted that the water quality information can be set as a TDS value, or the water quality information can be set as turbidity, or the water quality information can include a TDS value and turbidity, and the like, and the adjustment and change of the specific setting type of the water quality information do not deviate from the principles and ranges of the utility model, and should be included in the protection scope of the utility model.

[0122] Preferably, the water quality information includes a turbidity value, and the step of "determining the second preset time according to the water quality information" specifically comprises:

[0123] Determining the second preset time according to the turbidity value of the cleaning liquid.

[0124] It should be noted that, as shown in the figure, a turbidity sensor 63 is arranged on the circulation loop, and the turbidity value of the cleaning liquid in the circulation loop is detected by the turbidity sensor 63. Figures 1 to 4

[0125] It should be noted that, in actual application, the turbidity value can be compared with the preset turbidity, and the second preset time is determined according to the comparison result, or the difference value between the turbidity value and the preset turbidity can be calculated first, and then the difference value is compared with the preset value, and the second preset time is determined according to the comparison result, or the ratio between the turbidity value and the preset turbidity can be calculated first, and then the ratio is compared with the preset value, and the second preset time is determined according to the comparison result, and the like, and such 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.

[0126] Preferably, the step of "determining the second preset time according to the turbidity value" specifically includes:

[0127] calculating the difference value Δ=F-F0;

[0128] comparing the difference value Δ with the first preset value A1 and the second preset value A2 respectively;

[0129] determining the second preset time according to the comparison result;

[0130] wherein 0

[0131] Preferably, the step of "determining the second preset time according to the comparison result" specifically includes:

[0132] if Δ

[0133] if A1≤Δ≤A2, the second preset time is t2;

[0134] if Δ>A2, the second preset time is t3;

[0135] wherein t1

[0136] Preferably, after the cleaning liquid and / or the sterilization liquid is discharged from the reverse osmosis membrane filter core 2, the control method of the present application further includes the following steps:

[0137] water is supplied to the reverse osmosis membrane filter core 2 by the water purification device to flush the reverse osmosis membrane filter core 2;

[0138] the flushing water is discharged from the reverse osmosis membrane filter core 2.

[0139] ​By such an arrangement, after the cleaning liquid is discharged from the reverse osmosis membrane filter core 2, the reverse osmosis membrane filter core 2 is flushed, the cleaning liquid and dirt remaining in the reverse osmosis membrane filter core 2 can be discharged, and the cleaning liquid can be prevented from remaining in the reverse osmosis membrane filter core 2. After the sterilization liquid is discharged from the reverse osmosis membrane filter core 2, the reverse osmosis membrane filter core 2 is flushed, the sterilization liquid remaining in the reverse osmosis membrane filter core 2 can be discharged, and the sterilization liquid can be prevented from remaining in the reverse osmosis membrane filter core 2.

[0140] Preferably, as shown in the drawings, the water purification equipment further comprises a waste water outlet pipe 21 and a waste water valve 211 arranged on the waste water outlet pipe 21. When the reverse osmosis membrane filter core 2 needs to be cleaned or sterilized, the waste water valve 211 can prevent the cleaning liquid or the sterilization liquid in the reverse osmosis membrane filter core 2 from flowing out through the waste water outlet pipe 21. When the reverse osmosis membrane filter core 2 is flushed, the flushing water can be discharged through the waste water outlet pipe 21. Figures 1 to 4

[0141] Preferably, the water purification equipment further comprises an impurity collecting member (not shown in the drawings) arranged on the waste water outlet pipe 21, the impurity collecting member being located at an upstream end of the waste water valve 211 and being used to collect impurities in the cleaning liquid flowing out from the waste water end of the reverse osmosis membrane filter core 2.

[0142] By such an arrangement, after the cleaning liquid finishes cleaning the reverse osmosis membrane filter core 2, when the dirt is discharged from the waste water outlet pipe 21 along with the cleaning liquid, the dirt can be collected by the impurity collecting member, the dirt can be prevented from blocking the waste water valve 211, and the service life of the waste water valve 211 can be prolonged.

[0143] It should be noted that the flushing of the reverse osmosis membrane filter core 2 can be stopped when the flushing time reaches the set time, or the water quality parameter of the flushing water can be obtained, and the flushing of the reverse osmosis membrane filter core 2 can be selectively stopped according to the water quality parameter of the flushing water, and the like. Such 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.

[0144] Preferably, after the water purification equipment starts to flush the reverse osmosis membrane filter core 2, the control method of the present application further comprises the following steps:

[0145] real-time acquisition of an actual water quality parameter of the flushing water;

[0146] selective stopping of the flushing of the reverse osmosis membrane filter core 2 according to the water quality parameter of the flushing water.

[0147] By such an arrangement, whether the reverse osmosis membrane filter core 2 has been completely flushed can be determined according to the actual water quality parameter of the flushing water, which can not only prevent the reverse osmosis membrane filter core 2 from being not completely flushed due to too short flushing time, but also prevent the problem of water waste due to too long flushing time.​

[0148] It should be noted that the actual water quality parameter can be set to the TDS value of the flushing water, or the actual water quality parameter can be set to the pH value of the flushing water, etc. Such flexible adjustment and change does not deviate from the principle and scope of this utility model, and should be included within the protection scope of this utility model.

[0149] Preferably, the actual water quality parameter is the actual TDS value of the flushing water, and a flushing water detection component 212 is provided on the wastewater outlet pipe 21 to detect the actual TDS value of the flushing water.

[0150] Specifically, the step of "selectively stopping the flushing of reverse osmosis membrane filter element 2 based on actual water quality parameters" includes:

[0151] Compare the actual TDS value with the set TDS value;

[0152] If the actual TDS value is greater than or equal to the set TDS value, the rinsing of the reverse osmosis membrane filter element 2 will not be stopped.

[0153] If the actual TDS value is less than the set TDS value, then stop flushing the reverse osmosis membrane filter element 2.

[0154] With this setting, when the actual TDS value is greater than or equal to the set TDS value, it indicates that the quality of the flushing water is still poor, meaning that there is still detergent or disinfectant residue. In this case, the flushing of the reverse osmosis membrane filter element 2 should not be stopped, as the residual detergent or disinfectant in the reverse osmosis membrane filter element 2 can continue to be discharged. When the actual TDS value is less than the set TDS value, it indicates that the quality of the flushing water is good. In this case, the flushing of the reverse osmosis membrane filter element 2 should be stopped in time to avoid wasting water.

[0155] Preferably, such as Figure 6 As shown, after the sterilization module finishes sterilizing the reverse osmosis membrane filter element 2 and the reverse osmosis membrane filter element 2 resumes water production mode, the control method of this utility model further includes the following steps:

[0156] S5: Obtain the current water quality parameters of the pure water end of reverse osmosis membrane filter element 2;

[0157] S6: Based on the current water quality parameters, selectively connect the pure water end of the reverse osmosis membrane filter element 2 to the pure water use component 51.

[0158] With this setup, when cleaning the reverse osmosis membrane filter element 2, a small amount of cleaning agent will permeate to the pure water end of the reverse osmosis membrane filter element 2; when sterilizing the reverse osmosis membrane filter element 2, a small amount of disinfectant will permeate to the pure water end of the reverse osmosis membrane filter element 2. By acquiring the current water quality parameters of the pure water end of the reverse osmosis membrane filter element 2 and determining the water quality information of the pure water end of the reverse osmosis membrane filter element 2 based on the current water quality parameters, the pure water end of the reverse osmosis membrane filter element 2 can be selectively connected to the pure water component 51. On the one hand, when the current water quality is poor, the pure water end of the reverse osmosis membrane filter element 2 is not connected to the pure water component 51, which helps to discharge water containing a small amount of detergent and / or bactericide from the pure water end of the reverse osmosis membrane filter element 2, thereby helping to achieve zero additives and zero chemical pollution. On the other hand, when the current water quality is detected to be good, the pure water end of the reverse osmosis membrane filter element 2 is connected to the pure water component 51 in a timely manner, which can reduce the waste of water resources and further improve the user experience.

[0159] It should be noted that, in practical applications, those skilled in the art can obtain the current water quality parameters by setting up a water quality detection component and obtaining the detection value of the water quality detection component, or by taking water from the pure water outlet pipe 5 and detecting its water quality, etc. Such adjustments and changes to the specific method of obtaining the current water quality parameters do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0160] Preferably, such as Figures 1 to 4 As shown, this utility model also includes a water quality detection component 52, which is used to detect the current water quality parameters in the pure water outlet pipe 5.

[0161] It should be noted that, in practical applications, those skilled in the art can set the current water quality parameter to the current TDS value, or the current pH value, or any other possible form, etc. Such adjustments and changes to the specific setting type of the current water quality parameter do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0162] Preferably, such as Figure 6 As shown, the current water quality parameters include the current TDS value. The specific steps of "selectively connecting the pure water end of the reverse osmosis membrane filter element 2 to the pure water use component 51 according to the current water quality parameters" include:

[0163] S61: Compare the current TDS value with the preset TDS value;

[0164] S62: Based on the comparison results, selectively connect the pure water end of the reverse osmosis membrane filter element 2 to the pure water use component 51.

[0165] Through such a setting, whether the small amount of cleaning agent and bactericide remaining in the reverse osmosis membrane filter core 2 is completely discharged can be more directly judged according to the current TDS value and the preset TDS value, so that whether the pure water end of the reverse osmosis membrane filter core 2 is communicated with the pure water water member 51 can be more accurately judged, and the user's use experience is further improved.

[0166] It should be noted that in actual application, it is not limited to comparing the current TDS value with the preset TDS value, and selectively communicating the pure water end of the reverse osmosis membrane filter core 2 with the pure water water member 51 according to the comparison result, for example, the difference between the current TDS value and the preset TDS value can be calculated first, and the difference is compared with the preset value, and the pure water end of the reverse osmosis membrane filter core 2 is selectively communicated with the pure water water member 51 according to the comparison result, or the ratio between the current TDS value and the preset TDS value can be calculated first, and the ratio is compared with the preset value, and the pure water end of the reverse osmosis membrane filter core 2 is selectively communicated with the pure water water member 51 according to the comparison result, and the like. 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 current TDS value is compared with the preset TDS value, and the pure water end of the reverse osmosis membrane filter core 2 is selectively communicated with the pure water water member 51 according to the comparison result.

[0167] It should be noted that in actual application, the preset TDS value can be obtained by the user inputting information on the control panel of the water purification equipment, or the preset water quality parameter can be implanted on the controller of the water purification equipment in advance, and the preset TDS value is obtained through the information implanted on the controller. And the like. Such adjustment and change of the specific acquisition method of the preset TDS value does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0168] Preferably, the preset TDS value is implanted on the controller of the water purification equipment in advance, and the preset TDS value is obtained through the information implanted on the controller.

[0169] Preferably, as shown in Figure 6 The step of "selectively communicating the pure water end of the reverse osmosis membrane filter core 2 with the pure water water member 51 according to the comparison result" specifically includes:

[0170] S621: If the current TDS value is greater than the preset TDS value, the pure water end of the reverse osmosis membrane filter core 2 is not communicated with the pure water water member 51;

[0171] S622: If the current TDS value is less than or equal to the preset TDS value, the pure water end of the reverse osmosis membrane filter core 2 is communicated with the pure water water member 51.

[0172] Through such a setting, in the case of the current TDS value > the preset TDS value, it indicates that the TDS value of the pure water end of the reverse osmosis membrane filter core 2 is still high, that is, there is still a small amount of cleaning agent or bactericide in the pure water end of the reverse osmosis membrane filter core 2, at this time, the pure water end of the reverse osmosis membrane filter core 2 is not communicated with the pure water water member 51, which can more conveniently discharge the small amount of cleaning agent or bactericide remaining in the pure water end of the reverse osmosis membrane filter core 2, thereby more helping to achieve zero chemical addition, greatly improving the user's use experience; when the current TDS value ≤ the preset TDS value, it indicates that the TDS value of the pure water end of the reverse osmosis membrane filter core 2 is not greater than the preset water quality parameter, at this time, the pure water end of the reverse osmosis membrane filter core 2 is communicated with the pure water water member 51, on the one hand, it can avoid waste of water resources, and at the same time, it is helpful to prolong the service life of the reverse osmosis membrane filter core 2; on the other hand, it can also avoid affecting the normal use of the water purification equipment.

[0173] It should be noted that in the case that the pure water end of the reverse osmosis membrane filter core 2 is not communicated with the pure water water member 51, the pure water end of the reverse osmosis membrane filter core 2 can be set to be communicated with the wastewater outlet pipe 21, so that the water containing a small amount of cleaning agent or bactericide remaining in the pure water end of the reverse osmosis membrane filter core 2 is discharged to the outside of the water purification equipment through the wastewater outlet pipe 21, or the pure water end of the reverse osmosis membrane filter core 2 can also be set to be communicated with the sewer pipe in the user's use scene, so that the water containing a small amount of cleaning agent or bactericide remaining in the pure water end of the reverse osmosis membrane filter core 2 is directly discharged into the sewer pipe, or the pure water end of the reverse osmosis membrane filter core 2 can also be set to be communicated with the upstream end of the booster pump 12, so that the water containing a small amount of cleaning agent or bactericide remaining in the pure water end of the reverse osmosis membrane filter core 2 is delivered to the water inlet end of the reverse osmosis membrane filter core 2 through the booster pump 12, and the cleaning agent or bactericide in the pure water end of the reverse osmosis membrane filter core 2 is discharged after being filtered for multiple times, and the like. Such 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.

[0174] The following two embodiments will be introduced.

[0175] The following two cases will be introduced. Figures 1 to 4

[0176] Case 1:

[0177] As shown in Figure 3 and Figure 4 , the water purification equipment further comprises a drain pipe 22 and a drain valve 221, one end of the drain pipe 22 is communicated with the pure water outlet pipe 5, the other end is communicated with the wastewater outlet pipe 21, and the drain valve 221 is arranged on the drain pipe 22 and is used to control the on-off of the drain pipe 22.

[0178] ​Through the arrangement, after the cleaning of the reverse osmosis membrane filter core 2 is completed, the drain valve 221 is opened first, so that the pure water at the pure water end of the reverse osmosis membrane filter core 2 flows into the waste water outlet pipe 21 through the drain pipe 22, when the pure water containing the cleaning agent is completely drained, the drain valve 221 is closed again, so that the pure water at the pure water end of the reverse osmosis membrane filter core 2 flows into the pure water water member 51 through the pure water outlet pipe 5, thereby avoiding the pure water containing the cleaning agent from entering the pure water water member 51.

[0179] The waste water valve 211 is further arranged on the waste water outlet pipe 21, when the reverse osmosis membrane filter core 2 needs to be cleaned or sterilized, the waste water valve 211 can prevent the cleaning liquid or sterilizing liquid in the reverse osmosis membrane filter core 2 from flowing out through the waste water outlet pipe 21.

[0180] Case 2:

[0181] As shown in Figure 1 and Figure 2 The water purification equipment further comprises a backflow pipe 23 and a backflow valve 231, one end of the backflow pipe 23 is communicated with the pure water outlet pipe 5, the other end of the backflow pipe 23 is communicated with the upstream end of the booster pump 12, 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.

[0182] Through the arrangement, on the one hand, after the cleaning of the reverse osmosis membrane filter core 2 is completed, the pure water containing the cleaning agent at the pure water end of the reverse osmosis membrane filter core 2 can be drained to the upstream end of the booster pump 12, and is further filtered through the reverse osmosis membrane filter core 2, so as to prevent the user from drinking the pure water containing the cleaning agent, on the other hand, when the water purification equipment is in the normal water production mode and does not produce water for a long time, the reverse osmosis membrane filter core 2 will have the case that the TDS value of the first cup of water is increased, and the first cup of water can also flow back to the upstream end of the booster pump 12 through the backflow pipe 23, so as to prevent the user from drinking the water with a high TDS value.

[0183] It should be noted that the cleaning agent or sterilizing agent permeated to the pure water end of the reverse osmosis membrane filter core 2 will not damage the diaphragm of the booster pump 12 due to the low concentration.

[0184] It should be further noted that although the utility model is introduced in the above two cases, this is not restrictive, for example, the other end of the drain pipe 22 can be directly communicated with a sewer pipe or a waste water outlet of the water purification equipment, and the pure water containing the cleaning agent can be directly drained to the sewer pipe or the waste water outlet of the water purification equipment.

[0185] 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.

[0186] Exemplarily, the water purification device is a water purifier.

[0187] So far, the technical scheme 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 schemes 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 and a cleaning assembly, the cleaning assembly comprising a cleaning module and a sterilization module, The cleaning module is used for storing a cleaning agent and capable of delivering a cleaning liquid to the reverse osmosis membrane filter core so as to remove dirt on the reverse osmosis membrane filter core, and the sterilization module is used for storing a sterilization agent and capable of delivering a sterilization liquid to the reverse osmosis membrane filter core so as to sterilize the reverse osmosis membrane filter core.

2. The water purification apparatus according to claim 1, characterized by The water inlet main line of the water purification device is in communication with a water inlet end of the reverse osmosis membrane filter core, wherein The cleaning assembly comprises a cleaning inlet, the cleaning module and / or the sterilization module being capable of being in communication with the cleaning inlet, the cleaning inlet being in communication with the water inlet main line so that water in the water inlet main line enters the cleaning module and / or the sterilization module, thereby dissolving the cleaning agent and / or the sterilization agent and forming a cleaning liquid and / or a sterilization liquid; and / or, the cleaning assembly comprises a cleaning outlet, the cleaning outlet being in communication with the water inlet main line, the cleaning module and / or the sterilization module being capable of being in communication with the cleaning outlet, the cleaning outlet being in communication with the water inlet main line so that the cleaning liquid and / or the sterilization liquid in the cleaning module and / or the sterilization module enters the reverse osmosis membrane filter core.

3. The water purification apparatus according to claim 2, characterized by The water purification device further comprises a booster pump arranged on the water inlet main line, the booster pump being located at an upstream end of the cleaning outlet.

4. The water purification apparatus according to claim 2, characterized by The water purification device further comprises a pre-filter unit, a water outlet end of the pre-filter unit being in communication with the water inlet main line, the cleaning inlet being located at a downstream end of the pre-filter unit.

5. The water purification apparatus according to claim 2, characterized by The cleaning assembly comprises a cleaning pipeline, a cleaning valve and a cleaning agent storage member arranged on the cleaning pipeline, a sterilization pipeline arranged in parallel with the cleaning pipeline, and a sterilization valve and a sterilization agent storage member arranged on the sterilization pipeline, a first end of the cleaning pipeline and a first end of the sterilization pipeline being merged and in communication with the cleaning inlet, a second end of the cleaning pipeline and a second end of the sterilization pipeline being merged and in communication with the cleaning outlet, wherein the cleaning agent storage member is located at a downstream end of the cleaning valve and is used for storing an acidic cleaning agent or an alkaline cleaning agent, and the sterilization agent storage member is located at a downstream end of the sterilization valve.

6. The water purification apparatus according to claim 5, characterized by The number of the cleaning pipelines is at least two, and a plurality of the cleaning pipelines are arranged in parallel, the cleaning valve and the cleaning agent storage member being arranged one-to-one with the cleaning pipelines; and / or, the number of the sterilization pipelines is at least two, and a plurality of the sterilization pipelines are arranged in parallel, the sterilization valve and the sterilization agent storage member being arranged one-to-one with the sterilization pipelines.

7. The water purification apparatus according to claim 5, characterized by The cleaning assembly further comprises a one-way valve arranged on the cleaning pipeline and / or the sterilization pipeline and located between the cleaning outlet and the cleaning agent storage member and / or the sterilization agent storage member, the one-way valve being arranged to prevent water in the water inlet main line from flowing reversely to the cleaning agent storage member and / or the sterilization agent storage member through the cleaning outlet.

8. The water purification apparatus of claim 1, wherein The water purification device further comprises a pure water outlet pipe, a pure water end of the reverse osmosis membrane filter core being in communication with the pure water outlet pipe, wherein The water purification device further comprises a backflow pipe and a backflow valve, a first end of the backflow pipe is communicated with the pure water outlet pipe, a second end of the backflow pipe is communicated with an upstream end of a booster pump of the water purification device, and the backflow valve is arranged on the backflow pipe and is used for controlling the opening and closing of the backflow pipe.

9. The water purification apparatus of claim 1, wherein The water purification device further comprises a pure water outlet pipe, a pure water end of the reverse osmosis membrane filter core is communicated with the pure water outlet pipe, wherein, The water purification device further comprises a drain pipe and a drain valve, a first end of the drain pipe is communicated with the pure water outlet pipe, a second end of the drain pipe is communicated with a wastewater outlet pipe of the water purification device, and the drain valve is arranged on the drain pipe and is used for controlling the opening and closing of the drain pipe.

10. The water purification apparatus of claim 1, wherein The water purification device further comprises an auxiliary cleaning member, the auxiliary cleaning member is arranged to facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core so as to make the dirt fall off from the reverse osmosis membrane filter core. The water purification device further comprises an auxiliary cleaning member, the auxiliary cleaning member is arranged to facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core so as to make the dirt fall off from the reverse osmosis membrane filter core.

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