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 influenced by the problems of high cost, complicated pipeline connection and the like of the conventional water purification equipment. The water purification equipment comprises a reverse osmosis membrane filter element, a water inlet main path, a first cleaning module and a second cleaning module, a first connector of the first cleaning module is communicated with the water inlet main path, a second connector of the first cleaning module is communicated with the wastewater end of the reverse osmosis membrane filter element, and a cleaning inlet of the second cleaning module is communicated with the wastewater end of the reverse osmosis membrane filter element. A cleaning outlet of the second cleaning module is communicated with a water inlet end of the reverse osmosis membrane filter element. According to the water purifier, the first cleaning module and / or the second cleaning module can directly form a cleaning loop with the water inlet end and the wastewater end of the reverse osmosis membrane filter element, pipeline connection is simplified, the cost and the size of the water purifier are reduced, the reverse osmosis membrane filter element can be circularly cleaned, the storage effect of a cleaning agent, the water consumption and the cleaning efficiency can be taken into consideration, and the cleaning efficiency is improved. And the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, specifically provide a water purification equipment. 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 purification machine and pipeline machine gradually becomes an essential drinking water facility in people's daily life.

[0003] After a long time of use, the 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 a period of use of the water purification equipment, 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 to some extent, thereby prolonging the service life of the reverse osmosis membrane filter element.

[0004] The existing water purification equipment usually has a cleaning module connected in parallel to the water inlet main line, i.e., the water inlet end and the water outlet end of the cleaning module are both connected to the water inlet main line. In order to improve the cleaning effect of the cleaning liquid on the reverse osmosis membrane filter element, a circulating pipe is usually additionally provided to connect the water inlet end of the reverse osmosis membrane filter element, the wastewater end of the reverse osmosis membrane filter element, and the cleaning module in sequence to form a cleaning loop, so that the cleaning liquid can clean the reverse osmosis membrane filter element in a circulating manner. This results in a large number of valves (devices with on-off function, such as solenoid valves, mechanical valves, etc.) and pipelines in the water purification equipment, high cost, complex pipeline connection in the water purification equipment, and poor user experience. SUMMARY

[0005] The utility model aims to at least solve the above technical problems to some extent, i.e., to at least solve the problem of high cost, complex pipeline connection, and poor user experience of the existing water purification equipment to some extent.

[0006] In a first aspect, the utility model provides a kind of water purification equipment, which comprises: reverse osmosis membrane filter element;Water inlet main road, which is communicated with the water inlet end of the reverse osmosis membrane filter element and is used to supply water to the reverse osmosis membrane filter element;First cleaning module, which has first cavity, first interface and second interface, the first cavity is used to store first cleaning agent, the first interface is communicated with the water inlet main road, so that the water in the water inlet main road enters the first cavity through the first interface, and the first cleaning agent forms first cleaning liquid, the second interface is communicated with the waste water end of the reverse osmosis membrane filter element, so that the water outlet from the waste water end of the reverse osmosis membrane filter element enters the second cavity, and the second cleaning agent forms second cleaning liquid, the second cleaning module can also prevent the water in the water inlet main road from entering the second cavity, and the cleaning outlet is communicated with the water inlet end of the reverse osmosis membrane filter element, so that the second cleaning module, the water inlet end of the reverse osmosis membrane filter element and the waste water end of the reverse osmosis membrane filter element are sequentially communicated to form a second cleaning circuit;Wherein, the water purification equipment is arranged to drive the liquid circulation flow in the first cleaning circuit and / or the second cleaning circuit.

[0007] In the preferred technical solutions of the above water purification equipment, the water purification equipment further comprises a pump body, wherein: the pump body can deliver the first cleaning liquid in the first cavity to the reverse osmosis membrane filter element through the first interface; or, the pump body can deliver the first cleaning liquid in the first cavity to the reverse osmosis membrane filter element through the second interface.

[0008] In the preferred technical solutions of the above water purification equipment, the pump body is a booster pump arranged on the water inlet main road, which can drive the first cleaning liquid to be delivered to the reverse osmosis membrane filter element through the first interface, and can also drive the liquid circulation flow in the first cleaning circuit and / or the second cleaning circuit.

[0009] In the preferred technical solutions of the above water purification equipment, the booster pump at least includes a first voltage gear and a second voltage gear, and has a gear adjustment module for adjusting the voltage gear of the booster pump to the second voltage gear when the water purification equipment is in a cleaning mode, wherein the voltage value of the second voltage gear is lower than that of the first voltage gear.

[0010] In the preferred technical scheme of the water purification device, the first interface is connected with the cleaning outlet and communicates with the water inlet main line through a first connecting pipe, and / or the second interface is connected with the cleaning inlet and communicates with the wastewater end of the reverse osmosis membrane filter core through a second connecting pipe, wherein the pump body is a circulating pump arranged on the first connecting pipe and / or the second connecting pipe, the circulating pump can drive the first cleaning liquid to be delivered into the reverse osmosis membrane filter core through the first interface, and the circulating pump can also drive the liquid in the first cleaning loop and / or the second cleaning loop to circulate and flow.

[0011] In the preferred technical scheme of the water purification device, the first cleaning module comprises a first cleaning pipe and a first cleaning agent storage member arranged on the first cleaning pipe, the first cleaning agent storage member forms the first cavity, and two ends of the first cleaning pipe form the first interface and the second interface, respectively; or the first cleaning module comprises a first cleaning pipe, a first cleaning agent storage member and a first cleaning valve arranged on the first cleaning pipe, the first cleaning agent storage member forms the first cavity, two ends of the first cleaning pipe form the first interface and the second interface, respectively, and the first cleaning valve is used to control the opening and closing of the first cleaning pipe.

[0012] In the preferred technical scheme of the water purification device, the second cleaning module comprises a second cleaning pipe, a one-way valve, a second cleaning agent storage member and a second cleaning valve arranged on the second cleaning pipe, the second cleaning agent storage member forms the second cavity, two ends of the second cleaning pipe form the cleaning inlet and the cleaning outlet, respectively, the second cleaning valve is located between the cleaning inlet and the second cleaning agent storage member and is used to control the opening and closing of the second cleaning pipe, and the one-way valve is located between the cleaning outlet and the second cleaning agent storage member and can prevent the water in the water inlet main line from flowing reversely into the second cavity; or the second cleaning module comprises a second cleaning pipe, a second cleaning agent storage member and a second cleaning valve arranged on the second cleaning pipe, the second cleaning agent storage member forms the second cavity, two ends of the second cleaning pipe form the cleaning inlet and the cleaning outlet, respectively, the second cleaning valve is located between the cleaning inlet and the second cleaning agent storage member and is used to control the opening and closing of the second cleaning pipe, and the second cleaning agent storage member is provided with a non-return structure to prevent the water in the water inlet main line from flowing reversely into the second cavity.

[0013] In the preferred technical scheme of the water purification device, the water purification device further comprises a water inlet valve arranged on the water inlet main path, and a first interface of the first cleaning module is in communication with a downstream end of the water inlet valve; and / or, the water purification device further comprises a pre-filter unit, a water outlet end of the pre-filter unit is in communication with the water inlet main path, and the first interface of the first cleaning module is located at a downstream end of the pre-filter unit; and / or, the first cleaning module and / or the second cleaning module is arranged to allow water at a wastewater end of the reverse osmosis membrane filter core to flow to a water inlet end of the reverse osmosis membrane filter core; and / or, the water purification device further comprises a dirt collection member for collecting dirt in the first cleaning loop and / or the second cleaning loop; and / or, the first cleaning module and / or the second cleaning module is arranged to collect dirt in the first cleaning loop and / or the second cleaning loop.

[0014] In the preferred technical scheme of the water purification device, the water purification device further comprises a flow control member for adjusting the water flow from the wastewater end of the reverse osmosis membrane filter core to the water inlet end of the reverse osmosis membrane filter core through the first cleaning module and / or the second cleaning module.

[0015] In the preferred technical scheme of the water purification device, the water purification device further comprises a backflow pipe and a backflow valve, a first end of the backflow pipe is in communication with a pure water outlet pipe of the water purification device, a second end of the backflow pipe is in communication with the water inlet end of the reverse osmosis membrane filter core, and the backflow valve is arranged on the backflow pipe and is used to control the opening and closing of the backflow pipe; or, the water purification device further comprises a drain pipe and a drain valve, one end of the drain pipe is in communication with the pure water end of the reverse osmosis membrane filter core, the other end of the drain pipe is in communication with a wastewater outlet pipe of the water purification device, and the drain valve is arranged on the drain pipe and is used to control the opening and closing of the drain pipe.

[0016] In the case of adopting the above preferred technical scheme, by arranging the first cleaning module, the water inlet end of the reverse osmosis membrane filter core and the wastewater end of the reverse osmosis membrane filter core are sequentially communicated to form a first cleaning loop, thereby improving the cleaning effect on the reverse osmosis membrane filter core. When the first cleaning module is used to clean the reverse osmosis membrane filter core, the water in the water inlet main circuit can directly enter the first cavity to dissolve the first cleaning agent, so that the water purification equipment is more water-saving, the cleaning agent is dissolved faster, and the cleaning efficiency is higher. By arranging the second cleaning module, the water in the water inlet main circuit can be prevented from entering the second cavity, thereby preventing the second cleaning agent from being dissolved too early, improving the storage time of the second cleaning agent, and avoiding caking. At the same time, the second cleaning module, the water inlet end of the reverse osmosis membrane filter core and the wastewater end of the reverse osmosis membrane filter core are sequentially communicated to form a second cleaning loop, thereby improving the cleaning effect on the reverse osmosis membrane filter core. Since a circulating pipe is not required, the pipeline connection is simplified, the pipeline connection points are reduced, and the risk of water leakage is reduced. By arranging the first cleaning module and the second cleaning module, the appropriate cleaning agent dissolution method can be selected according to the type and characteristics of the cleaning agent, so that the water purification equipment can balance the storage effect of the cleaning agent, the water consumption during cleaning and the cleaning efficiency, and the user experience is improved.

[0017] Further, compared with the form of conveying the first cleaning liquid in the first cavity to the reverse osmosis membrane filter core through the second interface, the form of conveying the first cleaning liquid in the first cavity to the reverse osmosis membrane filter core through the first interface has the advantages that, on the one hand, the first cleaning liquid is conveyed from the water inlet end of the reverse osmosis membrane filter core to the reverse osmosis membrane filter core through the first interface, so that the first cleaning liquid can more smoothly and easily enter the reverse osmosis membrane filter core. On the other hand, the flow direction of the first cleaning liquid to the reverse osmosis membrane filter core is consistent with the direction of the second cleaning liquid to the reverse osmosis membrane filter core, so that the pump body does not need to have a bidirectional working mode, the requirement for the pump body is reduced, and the cost of the water purification equipment is reduced.

[0018] Further, by arranging the pump body as a booster pump, the booster pump provided in the water purification equipment can realize the circulation of the liquid in the first cleaning loop and the second cleaning loop, and a circulating pump does not need to be additionally arranged, so that the water purification equipment has a smaller size and a lower cost, and the user experience is further improved. By arranging the booster pump to have a first voltage gear and a second voltage gear, when the water purification equipment is in a cleaning mode, the booster pump can operate at a lower voltage gear, so that the water pressure of the cleaning liquid during circulation is lower. On the one hand, the cleaning liquid can be prevented from penetrating into the pure water end of the reverse osmosis membrane filter core, and the chemical residue is reduced. On the other hand, the damage of the cleaning liquid to the diaphragm in the booster pump is also reduced.

[0019] Further, after the first cleaning module and / or the second cleaning module finishes cleaning the reverse osmosis membrane filter core, and when the water purification device is in the flushing mode, the water at the waste water end of the reverse osmosis membrane filter core can be transported to the water inlet end of the reverse osmosis membrane filter core through the first cleaning module or the second cleaning module, so as to facilitate the circulation flushing of the reverse osmosis membrane filter core and improve the flushing effect.

[0020] Further, by arranging the flow control member, the water flow from the waste water end of the reverse osmosis membrane filter core to the water inlet end of the reverse osmosis membrane filter core can be controlled, the water amount of the waste water filtered through the reverse osmosis membrane filter core and then returned to the water inlet end of the reverse osmosis membrane filter core can be adjusted when the water purification device is in the normal water production mode, and the waste water recovery rate is controlled, on the one hand, the waste of water resources caused by the too low waste water recovery rate can be avoided, and on the other hand, the service life of the reverse osmosis membrane filter core caused by the too high waste water recovery rate can be avoided.

[0021] Further, by arranging the dirt collecting member, the dirt in the cleaning circuit can be collected by the dirt collecting member when the reverse osmosis membrane filter core is cleaned or when the reverse osmosis membrane filter core is subjected to the circulation flushing, and the secondary pollution of the reverse osmosis membrane filter core caused by the dirt cleaned (or flushed) can be prevented. 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 the present application;

[0024] Figure 2 is a structural schematic view of an embodiment two of the present application;

[0025] Figure 3 is a structural schematic view of an embodiment three of the present application;

[0026] Figure 4 is a structural schematic view of an embodiment four of the present application;

[0027] Figure 5 is a structural schematic view of an embodiment five of the present application;

[0028] Figure 6 is a structural schematic view of an embodiment six of the present application.

[0029] LIST OF REFERENCE NUMERALS

[0030] 1. Main water inlet pipe; 11. Inlet valve; 12. Booster pump; 2. Reverse osmosis membrane filter element; 21. Wastewater outlet pipe; 211. Wastewater valve; 22. Drain pipe; 221. Drain valve; 23. Return pipe; 231. Return valve; 3101. First interface; 3102. Second interface; 311. First cleaning pipe; 312. First cleaning valve; 313. First detergent storage component; 3130. First cavity; 3201. Cleaning inlet; 3202. Cleaning outlet; 321. Second cleaning pipe; 322. Second cleaning valve; 323. Second detergent storage component; 3230. Second cavity; 324. Check valve; 4. Pre-filter unit; 5. Pure water outlet pipe; 51. Pure water usage component; 6. Circulation pump; 7. Flow control component; 8. Dirt collection component; 91. First connecting pipe; 92. Second connecting pipe. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figures 1 to 6 As shown, the water purification equipment of this utility model includes a reverse osmosis membrane filter element 2, a main water inlet 1, a first cleaning module and a second cleaning module. The main water inlet 1 is connected to the water inlet end of the reverse osmosis membrane filter element 2 and is used to supply water to the reverse osmosis membrane filter element 2.

[0035] The first cleaning module has a first cavity 3130 for storing a first cleaning agent, a first interface 3101 in communication with the water inlet main line 1 so that the water in the water inlet main line 1 enters the first cavity 3130 through the first interface 3101 and the first cleaning agent forms a first cleaning liquid, and a second interface 3102 in communication with the wastewater end of the reverse osmosis membrane filter core 2 so that the first cleaning module, 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 first cleaning loop.

[0036] The second cleaning module has a second cavity 3230 for storing a second cleaning agent, a cleaning inlet 3201 in communication with the wastewater end of the reverse osmosis membrane filter core 2 so that the water flowing out of the wastewater end of the reverse osmosis membrane filter core 2 enters the second cavity 3230 through the cleaning inlet 3201 and the second cleaning agent forms a second cleaning liquid, and the second cleaning module can also prevent the water in the water inlet main line 1 from flowing back to the second cavity 3230, and a cleaning outlet 3202 in communication with the water inlet end of the reverse osmosis membrane filter core 2 so that the second cleaning module, 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 second cleaning loop.

[0037] The water purification device is configured to drive the liquid in the first cleaning loop and / or the second cleaning loop to circulate and flow.

[0038] By such a configuration, that is, by communicating the first interface 3101 of the first cleaning module with the water inlet main line 1 and communicating the second interface 3102 of the first cleaning module with the wastewater end of the reverse osmosis membrane filter core 2, the first cleaning module, the water inlet end of the reverse osmosis membrane filter core 2, and the wastewater end of the reverse osmosis membrane filter core 2 can be directly sequentially communicated to form the first cleaning loop, by configuring the cleaning inlet 3201 of the second cleaning module to be in communication with the wastewater end of the reverse osmosis membrane filter core 2 and configuring the cleaning outlet 3202 of the second cleaning module to be in communication with the water inlet end of the reverse osmosis membrane filter core 2, the second cleaning module, the water inlet end of the reverse osmosis membrane filter core 2, and the wastewater end of the reverse osmosis membrane filter core 2 can be directly sequentially communicated to form the second cleaning loop, when the reverse osmosis membrane filter core 2 is cleaned, the cleaning liquid can circulate and flow in the first cleaning loop or the second cleaning loop, thereby effectively improving the cleaning effect of the reverse osmosis membrane filter core 2, and without the need to additionally provide a pipeline to form a cleaning loop, thereby simplifying the pipeline connection, reducing the pipeline connection points, reducing the risk of water leakage, and at the same time, reducing the volume of the water purification device, saving the installation space of the water purification device, and improving the user experience.

[0039] It needs to be explained that the inventor has found through long-term research and experiments that some cleaning agents are prone to clumping due to moisture during storage, affecting cleaning effect, while some cleaning agents are not prone to clumping during storage. If both types of cleaning agents are set to be dissolved by water in the main water inlet, although the cleaning agent dissolves faster and saves water, it will cause the cleaning agent prone to clumping to clump due to moisture during storage. If both types of cleaning agents are set to be dissolved by water flowing out of the waste water end of the reverse osmosis membrane filter element, although it can prevent the cleaning agent from clumping due to moisture, the cleaning agent dissolves slowly and wastes more water, making it impossible to select the appropriate cleaning agent dissolving method according to the characteristics of the cleaning agent.

[0040] For example, the first interface 3101 of the first cleaning module is in communication with the main water inlet 1, which can make the water in the main water inlet 1 directly enter the second cavity 3230, so that the cleaning agent dissolves faster and saves water. However, when the water purification equipment is in normal water production mode, a small amount of water may enter the first cavity 3130 through the first interface 3101, which may cause part of the first cleaning agent to dissolve prematurely, resulting in clumping of the cleaning agent due to moisture. The cleaning inlet 3201 of the second cleaning module is set in communication with the waste water end of the reverse osmosis membrane filter element 2, and the cleaning outlet 3202 of the second cleaning module is set in communication with the water inlet end of the reverse osmosis membrane filter element 2. Although this can prevent water in the main water inlet 1 from flowing back into the second cavity 3230 and dissolving the cleaning agent prematurely, it uses water flowing out of the waste water end of the reverse osmosis membrane filter element 2 to dissolve the cleaning agent, which causes part of the water to flow out of the waste water outlet pipe 21, resulting in water waste and slow dissolving of the cleaning agent.

[0041] By setting the first cleaning module and the second cleaning module, the appropriate cleaning agent dissolving method can be adopted according to the type and characteristics of the cleaning agent (for example, the cleaning agent not prone to clumping can be stored in the first cavity 3130, and the cleaning agent prone to clumping can be stored in the second cavity 3230), so that the water purification equipment can consider the preservation effect of the cleaning agent, the water consumption of the water purification equipment, and the cleaning efficiency during cleaning when in cleaning mode, improving the user's experience.

[0042] It should be noted that in actual application, the first cleaning module can be set as an integrated structure with the first cavity 3130 therein, two ends of the first cavity 3130 forming the first interface 3101 and the second interface 3102 respectively, or the first cleaning module can be set as comprising the first cleaning pipe 311 and the first cleaning agent storage member 313 arranged on the first cleaning pipe 311, the first cavity 3130 being formed in the first cleaning agent storage member 313, the first end of the first cleaning pipe 311 forming the first interface 3101, and the second end of the first cleaning pipe 311 forming the second interface 3102, and the like, and such adjustment and change of the specific setting type of the first cleaning module does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0043] The following will introduce the specific embodiments of the first cleaning module of the present application in combination with the following cases.

[0044] Case 1:

[0045] Preferably, as shown in Figure 3 the first cleaning module comprises the first cleaning pipe 311 and the first cleaning agent storage member 313 arranged on the first cleaning pipe 311, the first cavity 3130 being formed in the first cleaning agent storage member 313, and two ends of the first cleaning pipe 311 forming the first interface 3101 and the second interface 3102 respectively, wherein the first interface 3101 communicates with the water inlet main path 1, and the second interface 3102 communicates with the wastewater end of the reverse osmosis membrane filter core 2.

[0046] Through such a setting, the first cleaning module can be reasonably arranged by means of the first cleaning pipe 311, which is more helpful to save the space inside the water purification equipment.

[0047] When the water purification equipment is in the normal water production mode, no cleaning agent is stored in the first cleaning agent storage member 313, when the water purification equipment is in the cleaning mode and the first cleaning module cleans the reverse osmosis membrane filter core 2, the user puts the first cleaning agent into the first cavity 3130, or the first cleaning agent storage member 313 is arranged to be capable of putting the first cleaning agent into the first cavity 3130, and water enters the first cavity 3130 through the water inlet main path 1 to dissolve the first cleaning agent to form the first cleaning liquid.

[0048] By setting the first cleaning module as only comprising the first cleaning pipe 311 and the first cleaning agent storage member 313 arranged on the first cleaning pipe 311, since the one-way valve 324 and the control valve do not need to be arranged on the first cleaning pipe 311, the cost of the water purification equipment can be further reduced, the volume of the water purification equipment can be further reduced, and the user's use experience can be improved.

[0049] Case 2:

[0050] As Figure 1 and Figure 2 , Figures 4 to 6 As shown in the first cleaning module includes a first cleaning pipe 311 and the first cleaning pipe 311 on the first cleaning agent storage member 313 and the first cleaning valve 312, the first cleaning agent storage member 313 in the first cavity 3130 is formed, the two ends of the first cleaning pipe 311 are formed first interface 3101 and second interface 3102, the first cleaning valve 312 is used for controlling the first cleaning pipe 311 on-off.

[0051] It should be noted that the utility model is not limited to the specific setting position of the first cleaning agent storage member 313 and the first cleaning valve 312 on the first cleaning pipe 311, for example, the first cleaning valve 312 can be arranged between the first cleaning agent storage member 313 and the first interface 3101, or the first cleaning valve 312 can be arranged between the first cleaning agent storage member 313 and the second interface 3102, and the like, and the 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.

[0052] Preferably, the first cleaning valve 312 is arranged between the first cleaning agent storage member 313 and the first interface 3101.

[0053] It should be noted that the first cleaning agent can not be stored in the first cavity 3130 first, when the water purification equipment is in the normal water production mode, the water inlet valve 11 is opened, the water in the water inlet main line 1 enters the reverse osmosis membrane filter element 2, which is convenient for filtering water and does not cause the first cleaning agent to be dissolved in advance, when the water purification equipment is in the cleaning mode and the first cleaning module cleans the reverse osmosis membrane filter element 2, the first cleaning valve 312 is opened, the first cleaning agent is put into the first cavity 3130, the water inlet valve 11 is opened, so that the water in the water inlet valve 11 enters the first cavity 3130 to dissolve the first cleaning agent to form the first cleaning liquid.

[0054] Alternatively, the first cleaning agent can be first stored in the first storage cavity 3130, when the water purification device is in the normal water production mode, the first cleaning valve 312 remains closed, because part of air is sealed in the first cleaning pipe 311, the water in the water inlet main line 1 generally will not enter the first storage cavity 3130, and because the first cleaning pipe 311 is in the disconnected state, even if a small amount of water from the water inlet main line 1 enters the first storage cavity 3130 and dissolves part of the first cleaning agent, the first cleaning liquid will not flow back to the water inlet main line 1, that is, will not affect the normal water production of the water purification device; when the water purification device is in the cleaning mode and the first cleaning module cleans the reverse osmosis membrane filter core 2, the first cleaning valve 312 is opened, and the water in the water inlet main line 1 enters the first storage cavity 3130 to dissolve the first cleaning agent to form the first cleaning liquid.

[0055] In this way, the one-way valve does not need to be arranged on the first cleaning pipe 311, further reducing the cost of the water purification device and reducing the volume of the water purification device.

[0056] It should be noted that although the specific structure of the first cleaning module is introduced in the above two cases, this is not restrictive, any other possible form does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0057] It should be noted that in actual application, the second cleaning module can be set as an integrated structure, which has a second storage cavity 3230, and the two ends of the second storage cavity 3230 form a cleaning inlet 3201 and a cleaning outlet 3202, respectively, or the second cleaning module can be set as a second cleaning pipe 321, a second cleaning agent storage member 323 and a second cleaning valve 322 arranged on the second cleaning pipe 321, the second storage cavity 3230 is formed in the second cleaning agent storage member 323, the two ends of the second cleaning pipe 321 form a cleaning inlet 3201 and a cleaning outlet 3202, respectively, and the second cleaning valve 322 is used to control the opening and closing of the second cleaning pipe 321, and the like. The adjustment and change of the specific setting type of the second cleaning module do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0058] Preferably, as Figures 1 to 6As shown, the second cleaning module comprises a second cleaning pipe 321, a one-way valve 324, a second cleaning agent storage member 323 and a second cleaning valve 322 arranged in sequence on the second cleaning pipe 321, a second cavity 3230 is formed in the second cleaning agent storage member 323, two ends of the second cleaning pipe 321 form a cleaning inlet 3201 and a cleaning outlet 3202 respectively, the second cleaning valve 322 is located between the cleaning inlet 3201 and the second cleaning agent storage member 323 and is used for controlling the opening and closing of the second cleaning pipe 321, and the one-way valve 324 is arranged between the second cleaning agent storage member 323 and the cleaning outlet 3202 and can prevent the water in the water inlet main path 1 from flowing back to the second cleaning agent storage member 323.

[0059] When the water purification equipment is in the normal water production mode, the second cleaning agent is stored in the second cavity 3230, the second cleaning valve 322 is closed, and the one-way valve 324 can prevent the water in the water inlet main path 1 from flowing back to the second cleaning agent storage member 323, thereby preventing the second cleaning agent in the second cavity 3230 from being dissolved too early.

[0060] When the water purification equipment is in the cleaning mode and the second cleaning module is used to clean the reverse osmosis membrane filter core 2, the second cleaning valve 322 is opened, the water in the water inlet main path 1 enters the reverse osmosis membrane filter core 2, the water in the reverse osmosis membrane filter core 2 flows from the waste water end of the reverse osmosis membrane filter core 2 to the second cavity 3230 through the cleaning inlet 3201, the second cleaning agent is dissolved to form a second cleaning liquid, the second cleaning liquid flows to the reverse osmosis membrane filter core 2 through the one-way valve 324 and the cleaning outlet 3202, and the reverse osmosis membrane filter core 2 is conveniently cleaned.

[0061] It should be noted that the second cleaning module is not limited to being arranged to comprise the second cleaning pipe 321, the one-way valve 324, the second cleaning agent storage member 323 and the second cleaning valve 322, for example, the second cleaning module can also be arranged to comprise the second cleaning pipe 321, the second cleaning agent storage member 323 and the second cleaning valve 322, a backflow prevention structure is arranged on the second cleaning agent storage member 323 to prevent the water in the water inlet main path 1 from flowing back to the reverse osmosis membrane filter core 2, and the like, and adjustment and change of the specific arrangement type of the second cleaning module 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 second cleaning module is arranged to comprise the second cleaning pipe 321, the one-way valve 324, the second cleaning agent storage member 323 and the second cleaning valve 322.

[0062] It should be further noted that in actual application, the specific delivery mode of the first cleaning liquid in the first cavity 3130 to the reverse osmosis membrane filter core 2 is not limited by the person skilled in the art, as long as the first cleaning liquid in the first cavity 3130 can be delivered to the reverse osmosis membrane filter core 2.

[0063] In one specific embodiment, the water purification device comprises a pump body configured to deliver the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the first interface 3101.

[0064] In another specific embodiment, the water purification device comprises a pump body configured to deliver the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the second interface 3102.

[0065] Preferably, the pump body is configured to deliver the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the first interface 3101.

[0066] By such a configuration, compared with the configuration of delivering the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the second interface 3102, the configuration of delivering the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the first interface 3101, on the one hand, the first cleaning liquid is delivered to the reverse osmosis membrane filter cartridge 2 through the first interface 3101 from the water inlet end of the reverse osmosis membrane filter cartridge 2, so that the first cleaning liquid more smoothly and easily enters the reverse osmosis membrane filter cartridge 2, on the other hand, the flow direction of the first cleaning liquid flowing to the reverse osmosis membrane filter cartridge 2 is consistent with the direction of the second cleaning liquid flowing to the reverse osmosis membrane filter cartridge 2, so that the pump body does not need to have a bidirectional working mode, the requirement for the pump body is reduced, and thus the cost of the water purification device is reduced.

[0067] It should be noted that in actual application, the specific setting type and setting position of the pump body are not limited in the utility model, as long as the pump body can deliver the first cleaning liquid in the first container cavity 3130 to the reverse osmosis membrane filter cartridge 2 through the water inlet main path 1.

[0068] The following will be described in detail in combination with the following embodiments.

[0069] Embodiment 1:

[0070] As shown in Figures 1 to 3 the pump body is a booster pump 12 arranged on the water inlet main path 1, the booster pump 12 can drive the first cleaning liquid in the first container cavity 3130 to be delivered to the reverse osmosis membrane filter cartridge 2 through the first interface 3101, and the booster pump 12 can also drive the liquid in the first cleaning loop and / or the second cleaning loop to circulate.

[0071] By setting the pump body as the booster pump 12, the booster pump 12 of the water purification device can realize the circulation of the liquid in the first cleaning loop and the second cleaning loop, and a circulating pump 6 does not need to be additionally arranged, so that the volume of the water purification device is smaller, the cost is also lower, and the use experience of the user is further improved.

[0072] It should be noted that in actual application, the booster pump 12 can be provided with only one voltage gear by the person skilled in the art, or the booster pump 12 can be provided with at least two voltage gears, and the booster pump 12 has a gear adjusting module for adjusting the voltage gear of the booster pump 12 to the second voltage gear when the water purification equipment is in the cleaning mode, wherein the voltage value of the second voltage gear is lower than that of the first voltage gear, and the like, and such adjustment and change of the specific type of the booster pump 12 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0073] Preferably, the booster pump 12 comprises at least a first voltage gear and a second voltage gear, and the booster pump 12 has a gear adjusting module for adjusting the voltage gear of the booster pump 12 to the second voltage gear when the water purification equipment is in the cleaning mode, wherein the voltage value of the second voltage gear is lower than that of the first voltage gear.

[0074] Through such a setting, when the water purification equipment is in the cleaning mode, the booster pump 12 can be operated at a lower voltage gear, so that the water pressure of the cleaning liquid in the circulation process is lower, on the one hand, the penetration of the cleaning liquid to the pure water end of the reverse osmosis membrane filter core 2 is reduced, and the chemical residue is reduced, on the other hand, the damage of the cleaning liquid to the diaphragm in the booster pump 12 is also reduced.

[0075] It should be noted that the gear adjusting module can be arranged on the shell of the water purification equipment, and when the water purification equipment executes the cleaning mode, the user adjusts the gear of the booster pump 12 by controlling the gear adjusting module, or the gear adjusting module can be communicatively connected with the controller of the water purification equipment to realize the automatic adjustment of the voltage gear of the booster pump 12, 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.

[0076] Exemplarily, the gear adjusting module is communicatively connected with the controller of the water purification equipment to realize the automatic adjustment of the voltage gear of the booster pump 12.

[0077] It should be noted that in actual application, the cleaning outlet 3202 of the second cleaning module can be arranged in communication with the water inlet main line 1, the cleaning outlet 3202 is in communication with the water inlet end of the reverse osmosis membrane filter core 2 through the water inlet main line 1, or the reverse osmosis membrane filter core 2 can be arranged to have two water inlets, one of which is in communication with the water inlet main line 1, and the other is in communication with the cleaning outlet 3202, or the cleaning outlet 3202 can be arranged to converge with the first interface 3101 and in communication with the water inlet main line 1 through the first connecting pipe 91, 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.

[0078] Preferably, as shown in the drawings, Figures 1 to 6 The water purification equipment further comprises a first connecting pipe 91, and the first interface 3101 of the first cleaning module converges with the cleaning outlet 3202 of the second cleaning module and is in communication with the water inlet main line 1 through the first connecting pipe 91.

[0079] It should be noted that the present application does not make any limitation on the specific communication mode of the second interface 3102 of the first cleaning module, the cleaning inlet 3201 of the second cleaning module and the wastewater end of the reverse osmosis membrane filter core 2, for example, the second interface 3102 of the first cleaning module and the cleaning inlet 3201 of the second cleaning module can be arranged to be in communication with the wastewater end of the reverse osmosis membrane filter core 2 respectively, or the second interface 3102 of the first cleaning module and the cleaning inlet 3201 of the second cleaning module can converge and be in communication with the wastewater end of the reverse osmosis membrane filter core 2 through the second connecting pipe 92, 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.

[0080] Preferably, as shown in the drawings, Figures 1 to 6 The water purification equipment further comprises a second connecting pipe 92, and the second interface 3102 of the first cleaning module converges with the cleaning inlet 3201 of the second cleaning module and is in communication with the wastewater end of the reverse osmosis membrane filter core 2 through the second connecting pipe 92.

[0081] By arranging the first connecting pipe 91 and the second connecting pipe 92, the pipe connection inside the water purification equipment can be simplified, the connection points can be reduced, and the risk of water leakage can be reduced.

[0082] It should be noted that in actual application, the second connecting pipe 92 can be directly communicated with the waste water end of the reverse osmosis membrane filter core 2, or the second connecting pipe 92 can be communicated with the waste water outlet pipe 21, or the reverse osmosis membrane filter core 2 can be provided with two waste water outlets, and the second connecting pipe 92 and the waste water outlet pipe 21 are respectively communicated with the two waste water outlets, 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.

[0083] Preferably, as shown in Figures 1 to 3 The water purification device further comprises a waste water outlet pipe 21 and a waste water valve 211 arranged on the waste water outlet pipe 21, and the second connecting pipe 92 is communicated with the waste water outlet pipe 21 and located at the upstream end of the waste water valve 211.

[0084] By such an arrangement, the second connecting pipe 92 is arranged at the upstream end of the waste water valve 211, which can avoid the dirt cleaned from the reverse osmosis membrane filter core 2 from entering the waste water valve 211 to block the waste water valve 211, prolong the service life of the waste water valve 211, and further improve the user experience.

[0085] Embodiment 2:

[0086] As shown in Figure 4 The first interface 3101 of the first cleaning module is communicated with the cleaning outlet 3202 of the second cleaning module and communicated with the water inlet main line 1 through the first connecting pipe 91, and the pump body is a circulating pump 6 arranged on the first connecting pipe 91.

[0087] Embodiment 3:

[0088] As shown in Figure 5 The second interface 3102 of the first cleaning module is communicated with the cleaning inlet 3201 of the second cleaning module and communicated with the waste water end of the reverse osmosis membrane filter core 2 through the second connecting pipe 92, and the pump body is a circulating pump 6 arranged on the second connecting pipe 92.

[0089] Compared with the form of arranging the pump body as the booster pump 12 in embodiment 1, the liquid in the first cleaning circuit and the second cleaning circuit is driven to circulate and flow by arranging the circulating pump 6 in embodiment 2 and embodiment 3, which can avoid using the booster pump 12 to drive the cleaning liquid to circulate and flow in the cleaning circuit, on the one hand, which can reduce the damage of the cleaning liquid to the diaphragm in the booster pump 12, thereby prolonging the service life of the booster pump 12; on the other hand, compared with the form of using the booster pump 12 to drive the cleaning liquid to circulate and flow in the cleaning circuit, since there is no high pressure, the cleaning liquid can be reduced to penetrate into the pure water end of the reverse osmosis membrane filter core 2, which not only can reduce the chemical residue, but also can reduce the damage to the membrane of the reverse osmosis membrane filter core 2.

[0090] It should be noted that although the utility model is above the three kinds of embodiment to the specific setting type and the specific setting position of the pump body of the utility model are introduced, this is not restrictive, for example, the pump body can also be arranged on the first cleaning circuit and the second cleaning circuit respectively to realize the circulation of liquid, and the like, and the flexible adjustment and change do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0091] Preferably, as shown in the utility model, the water purification equipment further comprises a water inlet valve 11 arranged on the water inlet main circuit 1, and the first interface 3101 of the first cleaning module is in communication with the downstream end of the water inlet valve 11. Figures 1 to 6

[0092] By arranging the water inlet valve 11, when the water purification equipment is in the normal water production mode, the water inlet valve 11 can be used to control the on-off of the water inlet main circuit 1, so that the water production and the water stop can be conveniently switched, and when the water purification equipment is in the cleaning mode, the water inlet valve 11 can be opened to make the water enter the first cavity 3130 or the second cavity 3230 to dissolve the cleaning agent to form the cleaning liquid.

[0093] Preferably, as shown in the utility model, the water purification equipment 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 circuit 1, and the first interface 3101 of the first cleaning module is located at the downstream end of the pre-filtering unit 4. Figures 1 to 6

[0094] By such an arrangement, that is, by arranging the first interface 3101 of the first cleaning module at the downstream end of the pre-filtering unit 4, the cleaning agent can be dissolved by using the purified water filtered by the pre-filtering unit 4, so that the solubility of the cleaning agent and the cleanliness of the cleaning liquid can be improved, thereby effectively improving the cleaning effect of the reverse osmosis membrane filter core 2.

[0095] 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, and the adjustment and change of the specific type of the pre-filtering unit 4 do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0096] Preferably, the pre-filtering unit 4 is a pre-filtering filter core.

[0097] Preferably, as shown in the utility model, the water purification equipment further comprises a pure water outlet pipe 5 and a pure water water member 51, and the pure water end of the reverse osmosis membrane filter core 2 is in communication with the pure water water member 51 through the pure water outlet pipe 5. Figures 1 to 6

[0098] ​​​It should be noted that in actual application, the pure water water member 51 can be directly set 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 use by the user, or the pure water water member 51 can be set as a post-filter, and the filtered pure water flows into the post-filter to improve the taste for use by the user, or the pure water water member 51 can be set as a pure water tank, and the filtered pure water flows into the pure water tank for storage for use by the user, and the like, and 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.

[0099] Preferably, the pure water water member 51 is a post-filter.

[0100] It should be noted that when the reverse osmosis membrane filter core 2 is cleaned, a small amount of cleaning agent will penetrate through the membrane of the reverse osmosis membrane filter core 2 to the pure water end, and therefore, after cleaning is completed, a small amount of cleaning agent will be left in the pure water end of the reverse osmosis membrane filter core 2, and the remaining cleaning agent needs to be discharged before being used by the user.

[0101] The following will be introduced in combination with the following two cases.

[0102] Case 1:

[0103] As shown in Figure 1 , Figures 3 to 6 , the water purification equipment further comprises a backflow pipe 23 and a backflow valve 231, the first end of the backflow pipe 23 is in communication with the pure water outlet pipe 5 of the water purification equipment, the second end of the backflow pipe 23 is in communication with the water inlet end of the reverse osmosis membrane filter core 2, and the backflow valve 231 is arranged on the backflow pipe 23 and is used to control the opening and closing of the backflow pipe 23.

[0104] Through such a setting, on the one hand, the pure water containing a small amount of cleaning agent in the pure water end of the reverse osmosis membrane filter core 2 can be discharged into the water inlet main line 1 after cleaning of the reverse osmosis membrane filter core 2 is completed, and the remaining small amount of cleaning agent is further filtered by the reverse osmosis membrane filter core 2 to be discharged from the water purification equipment, which helps to realize zero addition and zero chemical pollution, and on the other hand, when the water purification equipment is in a normal water production mode and does not produce water for a long time, the reverse osmosis membrane filter core 2 will have a situation that the TDS value of the first cup of water is increased, and the first cup of water can also be backflowed to the water inlet end of the reverse osmosis membrane filter core 2 through the backflow pipe 23 to solve the problem that the TDS value of the first cup of water is high.

[0105] It should be noted that the second end of the backflow pipe 23 can be directly communicated with the water inlet of the reverse osmosis membrane filter core 2, or the second end of the backflow pipe 23 can be arranged to be communicated with the water inlet main line 1 and located at the upstream end of the booster pump 12, 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.

[0106] Preferably, the second end of the backflow pipe 23 is communicated with the water inlet main line 1 and located at the upstream end of the booster pump 12.

[0107] Case 2:

[0108] As shown in Figure 2 The water purification device further comprises a drain pipe 22 and a drain valve 221, the first end of the drain pipe 22 is communicated with the pure water outlet pipe 5 of the water purification device, the second end of the drain pipe 22 is communicated with the wastewater outlet pipe 21 of the water purification device, and the drain valve 221 is arranged on the drain pipe 22 and used to control the opening and closing of the drain pipe 22.

[0109] Through such an arrangement, after the cleaning of the reverse osmosis membrane filter core 2 is completed, the drain valve 221 is first opened, so that the water at the pure water end of the reverse osmosis membrane filter core 2 flows into the wastewater outlet pipe 21 through the drain pipe 22, and when the pure water containing the cleaning agent is completely discharged, the drain valve 221 is closed, so that the 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 the residual cleaning agent can be discharged from the water purification device, which helps to realize zero addition and zero chemical pollution, and further improves the user experience.

[0110] It should be noted that it is not limited to arranging the first end of the drain pipe 22 to be communicated with the pure water outlet pipe 5, for example, the first end of the drain pipe 22 can be directly communicated with the pure water end of the reverse osmosis membrane filter core 2, 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. Of course, preferably, the first end of the drain pipe 22 is communicated with the pure water outlet pipe 5.

[0111] It should be further noted that although the present application is introduced in the above two cases, this is not limiting, for example, the other end of the drain pipe 22 can be directly communicated with a sewer pipe or a wastewater outlet of the water purification device, and the pure water containing the cleaning agent can be directly discharged to the sewer pipe or the wastewater outlet of the water purification device.

[0112] It should be noted that in actual application, the type of the cleaning agent in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 is not limited, for example, the cleaning agent can be set as an acidic cleaning agent, or the cleaning agent can be set as an alkaline cleaning agent, or the cleaning agent can be set as an oxidizing cleaning agent, and the like, and the adjustment and change of the type of the cleaning agent do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0113] Preferably, 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.

[0114] It should be noted that the specific type of the acidic cleaning agent is not limited, for example, the acidic cleaning agent can be set as at least one of malic acid, citric acid, hydrochloric acid, and phosphoric acid, and of course the acidic cleaning agent can be other types of cleaning agents, and a person skilled in the art can adjust according to actual needs.

[0115] It should be further noted that the specific type of the alkaline cleaning agent is not limited, for example, the alkaline cleaning agent can be set 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, and of course the alkaline cleaning agent can be other types of cleaning agents, and a person skilled in the art can adjust according to actual needs.

[0116] Preferably, the first cleaning module and / or the second cleaning module are set to allow the water at the wastewater end of the reverse osmosis membrane filter core 2 to flow to the water inlet end of the reverse osmosis membrane filter core 2.

[0117] Through such a setting, when the first cleaning module or the second cleaning module completes cleaning of the reverse osmosis membrane filter core 2, the first cleaning module or the second cleaning module serves as a passage to allow the water at the wastewater end of the reverse osmosis membrane filter core 2 to flow to the water inlet end of the reverse osmosis membrane filter core 2, and when the water purification equipment is in a flushing mode, the reverse osmosis membrane filter core 2 can be circularly flushed to improve the flushing effect.

[0118] Preferably, as shown in Figure 6 the water purification equipment of the present application further comprises a flow control member 7, wherein the flow control member 7 is used to adjust the water flow from the wastewater end of the reverse osmosis membrane filter core 2 to the water inlet main line 1.

[0119] By setting the flow control component 7, the water flow rate from the wastewater end of the reverse osmosis membrane filter element 2 to the water inlet end of the reverse osmosis membrane filter element 2 can be controlled. When the water purification equipment is in normal water production mode, the amount of wastewater that has been filtered by the reverse osmosis membrane filter element 2 and flows back to the water inlet end of the reverse osmosis membrane filter element 2 can be adjusted to control the wastewater recovery rate. On the one hand, this can avoid the waste of water resources due to the low wastewater recovery rate, and on the other hand, it can also avoid the service life of the reverse osmosis membrane filter element 2 due to the high wastewater recovery rate.

[0120] It should be noted that the flow control component 7 can be set to a wastewater ratio, or it can be set to a proportional valve, or it can be set to a water-blocking block with a water passage hole, etc. Such adjustments and changes to the specific setting type of the flow regulating component 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.

[0121] Preferably, the flow control component 7 is the wastewater ratio.

[0122] It should be noted that the flow control component 7 can be installed on the first cleaning pipe 311 or the second cleaning pipe 321, or it can be installed on the first connecting pipe 91 or the second connecting pipe 92.

[0123] Preferably, the flow control component 7 is disposed on the first connecting pipe 91 or the second connecting pipe 92.

[0124] Preferably, such as Figure 6 As shown, the water purification device of this utility model also includes a dirt collection component 8, which is used to collect dirt in the cleaning circuit.

[0125] By setting up the dirt collection component 8, when cleaning the reverse osmosis membrane filter element 2 or when circulating and rinsing the reverse osmosis membrane filter element 2, the dirt in the cleaning circuit can be collected by the dirt collection component 8, preventing the dirt that is cleaned (or rinsed) from causing secondary pollution to the reverse osmosis membrane filter element 2.

[0126] Specifically, the dirt collection component 8 is installed on the second connecting pipe 92.

[0127] It should be noted that the method is not limited to collecting dirt in the cleaning circuit by setting up a dirt collection component 8. For example, the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323 can be configured to store cleaning agent when they are in the first working state and collect dirt in the cleaning circuit when they are in the second working state. Alternatively, a filter screen can be set on the cleaning circuit to collect dirt in the cleaning circuit, 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.

[0128] Preferably, the first cleaning module and / or the second cleaning module is / are configured to store the cleaning agent when it / they is / are in the first working state and to collect the dirt in the cleaning loop when it / they is / are in the second working state.

[0129] By such a configuration, the dirt can be collected by the first cleaning module and / or the second cleaning module without the need of additionally configuring the impurity collecting member, thereby further reducing the cost of the water purification device.

[0130] Specifically, a filter screen can be configured in the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323, which is capable of intercepting the dirt and collecting the dirt into the first cavity 3130 and / or the second cavity 3230.

[0131] It should be noted that, in actual applications, the water purification device can be configured as a water purifier, or can be configured as a water-drink integrated machine, or can be configured as any other possible type, etc., and such adjustment and change of the specific configuration 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.

[0132] Exemplarily, the water purification device is a water purifier.

[0133] The working process of the water purification device will be described in detail below in combination with the following cases.

[0134] Case 1:

[0135] The water purification device is in a normal water production mode:

[0136] As shown in Figs. Figure 1 , Figure 2 , Figure 4 and Figure 5 , the first cleaning valve 312 and the second cleaning valve 322 are closed, the water inlet valve 11, the booster pump 12 and the waste water valve 211 are opened, the water in the water inlet main loop 1 is transported into the reverse osmosis membrane filter cartridge 2 under the action of the booster pump 12, the pure water filtered by the reverse osmosis membrane filter cartridge 2 flows into the pure water water-using member 51 through the pure water outlet pipe 5 for the user to drink, and the waste water generated by the filtration is discharged through the waste water outlet pipe 21.

[0137] Case 2:

[0138] The water purification device is in a cleaning mode and the first cleaning module is configured to clean the reverse osmosis membrane filter cartridge 2:

[0139] Close the second cleaning valve 322, open the water inlet valve 11 and the first cleaning valve 312, and the water in the water inlet main line 1 flows into the first cavity 3130 through the first interface 3101 of the first cleaning pipe 311, and dissolves the first cleaning agent in the first cavity 3130 to form the first cleaning liquid. Close the water inlet valve 11, open the booster pump 12 (or start the circulating pump 6), and switch the booster pump 12 to the second voltage gear. The booster pump 12 (or the circulating pump 6) drives the first cleaning liquid in the first cavity 3130 to flow into the water inlet main line 1 through the first interface 3101, and then into the reverse osmosis membrane filter element 2, and makes the first cleaning liquid circulate in the first cleaning circuit, so that the first cleaning liquid cleans the dirt in the reverse osmosis membrane filter element 2. During the cleaning process, the first cleaning agent storage member 313 or the dirt collection member 8 collects the dirt in the first cleaning circuit to avoid secondary pollution of the dirt to the reverse osmosis membrane filter element 2. After the cleaning is completed, open the waste water valve 211 to discharge the cleaning waste water in the reverse osmosis membrane filter element 2 from the waste water outlet pipe 21.

[0140] Case 3:

[0141] The water purification equipment is in the cleaning mode and the second cleaning module cleans the reverse osmosis membrane filter element 2:

[0142] As shown in Figures 1 to 6 , close the first cleaning valve 312, open the water inlet valve 11 and the second cleaning valve 322, and the water in the water inlet main line 1 enters the reverse osmosis membrane filter element 2, and flows into the second cavity 3230 from the first end of the second cleaning pipe 321 at the waste water end of the reverse osmosis membrane filter element 2, dissolves the second cleaning agent in the second cavity 3230 to form the second cleaning liquid, and under the action of the booster pump 12 (or the circulating pump 6), the second cleaning liquid is transported to the water inlet end of the reverse osmosis membrane filter element 2 through the second end of the second cleaning pipe 321, and circulates in the second cleaning circuit, so that the second cleaning liquid cleans the dirt in the reverse osmosis membrane filter element 2. During the cleaning process, the second cleaning agent storage member 323 or the dirt collection member 8 collects the dirt in the second cleaning circuit to avoid secondary pollution of the dirt to the reverse osmosis membrane filter element 2. After the cleaning is completed, open the waste water valve 211 to discharge the cleaning waste water in the reverse osmosis membrane filter element 2 from the waste water outlet pipe 21.

[0143] It should be noted that in this case, the reverse osmosis membrane filter element 2 is not in the water production mode, and the water entering the reverse osmosis membrane filter element 2 from the water inlet end of the reverse osmosis membrane filter element 2 directly flows out from the waste water end of the reverse osmosis membrane filter element 2, so the water flowing out from the waste water end of the reverse osmosis membrane filter element 2 is not waste water produced by filtration.

[0144] Case 4:

[0145] After the cleaning is completed, a small amount of residual cleaning agent is discharged:

[0146] As Figure 1 , Figures 3 to 6 shown, open the water inlet valve 11 and the booster pump 12, make the reverse osmosis membrane filter core 2 normal water production, the water in the water inlet main road 1 enters into the reverse osmosis membrane filter core 2, the waste water generated by filtration is discharged through the waste water outlet pipe 21, the pure water generated by filtration flows to the water inlet end of the reverse osmosis membrane filter core 2 through the backflow pipe 23, and a small amount of cleaning agent remaining in the pure water end of the reverse osmosis membrane filter core 2 is discharged after multiple filtrations, which helps to realize zero pollution and zero chemical addition.

[0147] Of course, the remaining small amount of cleaning agent can also be discharged through the drain pipe 22, as Figure 2 shown, open the water inlet valve 11 and the booster pump 12, make the reverse osmosis membrane filter core 2 normal water production, the water in the water inlet main road 1 enters into the reverse osmosis membrane filter core 2, the waste water generated by filtration is discharged through the waste water outlet pipe 21, the pure water generated by filtration flows out through the drain pipe 22, which helps to realize zero pollution and zero chemical addition.

[0148] Case 5:

[0149] The water purification equipment is in the flushing mode:

[0150] When the first cleaning module finishes cleaning the reverse osmosis membrane filter core 2, open the first cleaning valve 312 and the water inlet valve 11, and under the action of the booster pump 12 (or the circulating pump 6), make the water at the waste water end of the reverse osmosis membrane filter core 2 be transported to the water inlet end of the reverse osmosis membrane filter core 2 through the first cleaning pipe 311, to realize the circulating flushing.

[0151] Of course, when the water purification equipment is in the flushing mode, the second cleaning valve 322 and the water inlet valve 11 can also be opened after the second cleaning module finishes cleaning the reverse osmosis membrane filter core 2, and under the action of the booster pump 12 (or the circulating pump 6), the water at the waste water end of the reverse osmosis membrane filter core 2 is transported to the water inlet end of the reverse osmosis membrane filter core 2 through the second cleaning pipe 321, to realize the circulating flushing.

[0152] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A water purification apparatus, characterized by comprising: The water purification device comprises: a reverse osmosis membrane filter core (2); a water inlet main line (1) in communication with a water inlet end of the reverse osmosis membrane filter core (2) and used for supplying water to the reverse osmosis membrane filter core (2); a first cleaning module having a first cavity (3130) for storing a first cleaning agent, a first interface (3101) in communication with the water inlet main line (1) so that water in the water inlet main line (1) enters the first cavity (3130) through the first interface (3101) and forms a first cleaning solution with the first cleaning agent, and a second interface (3102) in communication with a waste water end of the reverse osmosis membrane filter core (2) so that the first cleaning module, 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 first cleaning loop; and a second cleaning module having a second cavity (3230), a cleaning inlet (3201) in communication with the waste water end of the reverse osmosis membrane filter core (2) so that water flowing out of the waste water end of the reverse osmosis membrane filter core (2) enters the second cavity (3230) and forms a second cleaning solution with the second cleaning agent, and a cleaning outlet (3202) in communication with the water inlet end of the reverse osmosis membrane filter core (2) so that the second cleaning module, 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 second cleaning loop; wherein the water purification device is configured to drive the liquid in the first cleaning loop and / or the second cleaning loop to circulate and flow.

2. The water purification apparatus according to claim 1, characterized by The water purification device further comprises a pump body, wherein: the pump body is capable of delivering the first cleaning solution in the first cavity (3130) to the reverse osmosis membrane filter core (2) through the first interface (3101); alternatively, the pump body is capable of delivering the first cleaning solution in the first cavity (3130) to the reverse osmosis membrane filter core (2) through the second interface (3102).

3. The water purification apparatus according to claim 2, characterized by The pump body is a booster pump (12) arranged on the water inlet main line (1), the booster pump (12) is capable of driving the first cleaning solution to be delivered to the reverse osmosis membrane filter core (2) through the first interface (3101), and the booster pump (12) is also capable of driving the liquid in the first cleaning loop and / or the second cleaning loop to circulate and flow.

4. The water purification apparatus according to claim 3, characterized by The booster pump comprises at least a first voltage gear and a second voltage gear, and has a gear adjusting module for adjusting the voltage gear of the booster pump to the second voltage gear when the water purification device is in a cleaning mode, wherein the voltage value of the second voltage gear is lower than the voltage value of the first voltage gear.

5. The water purification apparatus according to claim 2, characterized by The first interface (3101) is connected with the cleaning outlet (3202) and communicates with the water inlet main line (1) through a first connecting pipe (91), And / or, the second interface (3102) is connected with the cleaning inlet (3201) and communicates with the wastewater end of the reverse osmosis membrane filter element (2) through a second connecting pipe (92), Wherein, the pump body is a circulating pump (6) arranged on the first connecting pipe (91) and / or the second connecting pipe (92), the circulating pump (6) can drive the first cleaning liquid to be delivered into the reverse osmosis membrane filter element (2) through the first interface (3101), and the circulating pump (6) can also drive the liquid in the first cleaning circuit and / or the second cleaning circuit to circulate and flow.

6. The water purification apparatus according to claim 1, characterized by The first cleaning module comprises a first cleaning pipe (311) and a first cleaning agent storage member (313) arranged on the first cleaning pipe (311), the first cleaning agent storage member (313) forms the first cavity (3130) therein, and two ends of the first cleaning pipe (311) form the first interface (3101) and the second interface (3102), respectively. Alternatively, the first cleaning module comprises a first cleaning pipe (311), a first cleaning agent storage member (313) and a first cleaning valve (312) arranged on the first cleaning pipe (311), the first cleaning agent storage member (313) forms the first cavity (3130) therein, two ends of the first cleaning pipe (311) form the first interface (3101) and the second interface (3102), respectively, and the first cleaning valve (312) is used to control the opening and closing of the first cleaning pipe (311).

7. The water purification apparatus of claim 1, wherein The second cleaning module comprises a second cleaning pipe (321), a one-way valve (324), a second cleaning agent storage member (323) and a second cleaning valve (322) arranged on the second cleaning pipe (321), the second cleaning agent storage member (323) forms the second cavity (3230) therein, two ends of the second cleaning pipe (321) form the cleaning inlet (3201) and the cleaning outlet (3202), respectively, the second cleaning valve (322) is located between the cleaning inlet (3201) and the second cleaning agent storage member (323) and is used to control the opening and closing of the second cleaning pipe (321), and the one-way valve (324) is located between the cleaning outlet (3202) and the second cleaning agent storage member (323) and can prevent the water in the water inlet main line (1) from flowing back to the second cavity (3230); Alternatively, the second cleaning module comprises a second cleaning pipe (321), and a second cleaning agent storage member (323) and a second cleaning valve (322) arranged on the second cleaning pipe (321), the second cleaning agent storage member (323) forms the second cavity (3230) therein, two ends of the second cleaning pipe (321) form the cleaning inlet (3201) and the cleaning outlet (3202) respectively, the second cleaning valve (322) is located between the cleaning inlet (3201) and the second cleaning agent storage member (323) and is used for controlling the opening and closing of the second cleaning pipe (321), and the second cleaning agent storage member (323) is provided with a check structure to prevent water in the water inlet main path (1) from flowing back to the second cavity (3230).

8. The water purification apparatus of claim 1, wherein The water purification equipment further comprises a water inlet valve (11) arranged on the water inlet main path (1), and the first interface (3101) of the first cleaning module is in communication with a downstream end of the water inlet valve (11); And / or, the water purification equipment further comprises a pre-filter unit (4), and a water outlet end of the pre-filter unit (4) is in communication with the water inlet main path (1), and the first interface (3101) of the first cleaning module is located at a downstream end of the pre-filter unit (4); And / or, the first cleaning module and / or the second cleaning module is arranged to allow water at a wastewater end of the reverse osmosis membrane filter core (2) to flow to a water inlet end of the reverse osmosis membrane filter core (2); And / or, the water purification equipment further comprises a dirt collection member (8) for collecting dirt in the first cleaning loop and / or the second cleaning loop; And / or, the first cleaning module and / or the second cleaning module is arranged to collect dirt in the first cleaning loop and / or the second cleaning loop.

9. The water purification apparatus according to claim 8, characterized by The water purification equipment further comprises a flow control member (7) for adjusting the water flow from the wastewater end of the reverse osmosis membrane filter core (2) to the water inlet end of the reverse osmosis membrane filter core (2) through the first cleaning module and / or the second cleaning module.

10. The water purification apparatus according to any one of claims 1 to 9, characterized by, The water purification equipment further comprises a backflow pipe (23) and a backflow valve (231), a first end of the backflow pipe (23) is in communication with a pure water outlet pipe (5) of the water purification equipment, a second end of the backflow pipe (23) is in communication with the water inlet end of the reverse osmosis membrane filter core (2), 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); Alternatively, the water purification equipment further comprises a drain pipe (22) and a drain valve (221), one end of the drain pipe (22) is in communication with the pure water end of the reverse osmosis membrane filter core (2), the other end of the drain pipe (22) is in communication with a wastewater outlet pipe (21) of the water purification equipment, and the drain valve (221) is arranged on the drain pipe (22) and is used for controlling the opening and closing of the drain pipe (22).

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