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 due to the problems of high cost, complicated pipeline connection and the like of the conventional water purification equipment. The water purification equipment comprises the reverse osmosis membrane filter element, the water inlet main path and the cleaning assembly, the cleaning agent storage component is used for storing the cleaning agent, the cleaning inlet is communicated with the wastewater end of the reverse osmosis membrane filter element, and the cleaning outlet is communicated with the water inlet end of the reverse osmosis membrane filter element, so that a cleaning loop is formed; and the water purification equipment can drive liquid in the cleaning loop to circularly flow. The cleaning inlet can be directly communicated with the wastewater end of the reverse osmosis membrane filter element, the cleaning outlet is communicated with the water inlet end of the reverse osmosis membrane filter element, parts such as valves and pipelines are reduced, pipeline connection is simplified, the cost of the water purification equipment is reduced, the reverse osmosis membrane filter element can be circularly cleaned, and the water purification efficiency is improved. The reverse osmosis membrane filter element can be circularly washed, so that the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and specifically provides a water purification device. Background Technology

[0002] As people's living standards improve, their demand for drinking water is also increasing. Water systems such as water purifiers and water dispensers are gradually becoming essential drinking water facilities in people's daily lives.

[0003] After prolonged use, dirt and grime can accumulate inside the reverse osmosis membrane filter element, affecting the water production rate and thus the lifespan of the filter element. Cleaning the reverse osmosis membrane filter element with a detergent after a period of use can remove this dirt and grime, extending its lifespan.

[0004] However, existing water purification equipment typically sets up the cleaning module in parallel on the main inlet line, meaning that both the inlet and outlet of the cleaning module are connected to the main inlet line. To improve the cleaning effect of the cleaning solution on the reverse osmosis membrane filter, a separate circulation pipe is usually installed to connect the inlet of the reverse osmosis membrane filter, the wastewater end of the reverse osmosis membrane filter, and the cleaning module in sequence to form a cleaning loop. This allows the cleaning solution to circulate and clean the reverse osmosis membrane filter. Consequently, the water purification equipment has a large number of valves (devices with switching functions, such as solenoid valves and mechanical valves) and pipes, resulting in higher costs and complex pipe connections within the water purification equipment, which affects the user experience. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems to at least a certain extent, namely, to solve the problem that the high cost and complex pipeline connection of existing water purification equipment affect the user experience.

[0006] In a first aspect, the present invention provides a water purification device, comprising: a reverse osmosis membrane filter element; a main inlet channel connected to the inlet end of the reverse osmosis membrane filter element and used to supply water to the reverse osmosis membrane filter element; and a cleaning component having a cleaning agent storage component, a cleaning inlet, and a cleaning outlet. The cleaning agent storage component is used to store cleaning agent. The cleaning inlet is connected to the wastewater end of the reverse osmosis membrane filter element so that water from the wastewater end of the reverse osmosis membrane filter element enters the cleaning agent storage component through the cleaning inlet to dissolve the cleaning agent and form a cleaning liquid. The cleaning outlet is connected to the inlet end of the reverse osmosis membrane filter element. The inlet end of the reverse osmosis membrane filter element, the wastewater end of the reverse osmosis membrane filter element, and the cleaning component are sequentially connected to form a cleaning circuit. The water purification device can drive the cleaning liquid to circulate within the cleaning circuit to clean the reverse osmosis membrane filter element.

[0007] In the preferred embodiment of the above-mentioned water purification equipment, the cleaning component includes a first cleaning module, which includes a first cleaning pipe, a first cleaning agent storage component disposed on the first cleaning pipe, and a first cleaning valve. The water inlet end of the first cleaning pipe forms the cleaning inlet, and the water outlet end of the first cleaning pipe forms the cleaning outlet. The first cleaning valve is located between the cleaning outlet and the first cleaning agent storage component. Alternatively, the cleaning component includes a first cleaning module and a second cleaning module, the water inlets of both the first cleaning module and the second cleaning module being able to communicate with the cleaning inlet, and the water outlet ends of both the first cleaning module and the second cleaning module being able to communicate with the cleaning outlet.

[0008] In the preferred technical solution for the water purification equipment described above, the first cleaning module includes a first cleaning pipe, a first cleaning valve disposed on the first cleaning pipe, and a first cleaning agent storage component. The second cleaning module includes a second cleaning pipe, a second cleaning valve disposed on the second cleaning pipe, and a second cleaning agent storage component. The first end of the first cleaning pipe and the first end of the second cleaning pipe meet and are connected to the cleaning inlet through a first connecting pipe. The second end of the first cleaning pipe and the second end of the second cleaning pipe meet and are connected to the cleaning outlet through a second connecting pipe. The first cleaning valve is located between the cleaning inlet and the first cleaning agent storage component, and the second cleaning valve is located between the cleaning inlet and the second cleaning agent storage component.

[0009] In the preferred technical solution for the water purification equipment described above, the water purification equipment further includes a circulation pump, which is installed on the first connecting pipe or the second connecting pipe and is used to drive the liquid circulation flow in the cleaning circuit; or, the cleaning outlet is connected to the main water inlet, and the booster pump of the water purification equipment is located at the downstream end of the cleaning outlet, and the booster pump is capable of driving the liquid circulation flow in the cleaning circuit.

[0010] In the preferred technical solution for the water purification equipment described above, the cleaning component further includes a one-way valve, which is disposed downstream of the first cleaning agent storage component and / or the second cleaning agent storage component; and / or, the booster pump includes at least a first voltage level and a second voltage level, the booster pump has a level adjustment module, the level adjustment module being used to adjust the voltage level of the booster pump to the second voltage level when the water purification equipment is in cleaning mode, wherein the voltage value of the second voltage level is lower than the voltage value of the first voltage level.

[0011] In the preferred technical solution for the water purification equipment described above, the first cleaning module includes a first cleaning pipe and a first cleaning agent storage component disposed on the first cleaning pipe; the second cleaning module includes a second cleaning pipe, a second cleaning valve disposed on the second cleaning pipe, and a second cleaning agent storage component; the cleaning assembly further includes a third connecting pipe and a first cleaning valve disposed on the third connecting pipe; the first end of the third connecting pipe intersects with the inlet end of the second cleaning pipe and is connected to the cleaning inlet through the first connecting pipe; the second end of the third connecting pipe intersects with the outlet end of the second cleaning pipe and is connected to the inlet end of the first cleaning pipe; and the outlet end of the first cleaning pipe forms the cleaning outlet.

[0012] In the preferred technical solution for the water purification equipment described above, the water purification equipment further includes a circulation pump, which is installed on the first cleaning pipe or the first connecting pipe and is used to drive the liquid circulation flow in the cleaning circuit; or, the cleaning outlet is connected to the main water inlet, and the booster pump of the water purification equipment is located at the downstream end of the cleaning outlet, and the booster pump is capable of driving the liquid circulation flow in the cleaning circuit.

[0013] In the preferred technical solution for the water purification equipment described above, the cleaning component further includes a one-way valve, which is disposed downstream of the first cleaning agent storage component and / or the second cleaning agent storage component; and / or, the booster pump includes at least a first voltage level and a second voltage level, the booster pump has a level adjustment module, the level adjustment module being used to adjust the voltage level of the booster pump to the second voltage level when the water purification equipment is in cleaning mode, wherein the voltage value of the second voltage level is lower than the voltage value of the first voltage level.

[0014] In the preferred embodiment of the above-mentioned water purification equipment, the water purification equipment further includes an auxiliary cleaning component, which is configured to promote the interaction between the cleaning liquid and the dirt on the reverse osmosis membrane filter element, thereby removing the dirt from the reverse osmosis membrane filter element; and / or, the water purification equipment further includes a pre-filtration unit, the outlet of which is connected to the first end of the main inlet channel, and the cleaning outlet of the cleaning component is located downstream of the pre-filtration unit; and / or, the water purification equipment further includes a flow control component, which is used for... The water purification device is configured to regulate the water flow rate from the cleaning inlet to the cleaning outlet; and / or, the water purification device further includes a dirt collection component for collecting dirt within the cleaning circuit; and / or, the cleaning agent storage component is configured to store cleaning agent when in a first operating state and collect dirt within the cleaning circuit when in a second operating state; and / or, the water purification device further includes a pure water outlet pipe and a pure water user component, wherein the pure water end of the reverse osmosis membrane filter element is connected to the pure water user component via the pure water outlet pipe.

[0015] In the preferred embodiment of the above-mentioned water purification equipment, the water purification equipment further includes a return pipe and a return valve. One end of the return pipe is connected to the pure water end of the reverse osmosis membrane filter element, and the other end of the return pipe is connected to the main water inlet. The return valve is installed on the return pipe and is used to control the opening and closing of the return pipe. Alternatively, the water purification equipment further includes a drain pipe and a drain valve. One end of the drain pipe is connected to the pure water outlet pipe, and the other end of the drain pipe is connected to the wastewater outlet pipe of the water purification equipment. The drain valve is installed on the drain pipe and is used to control the opening and closing of the drain pipe.

[0016] When the above-mentioned preferred technical solution is adopted, the cleaning inlet of the cleaning component can be directly connected to the wastewater end of the reverse osmosis membrane filter element, and the cleaning outlet can be connected to the inlet end of the reverse osmosis membrane filter element. This facilitates the sequential connection of the inlet end of the reverse osmosis membrane filter element, the wastewater end of the reverse osmosis membrane filter element, and the cleaning component to form a cleaning loop. On the one hand, when the water purification equipment is in cleaning mode, the cleaning liquid circulates within the cleaning loop, thereby repeatedly flushing the reverse osmosis membrane filter element and improving its cleaning effect. On the other hand, after cleaning is completed and the water purification equipment is in flushing mode, the water from the wastewater end of the reverse osmosis membrane filter element can be transported to the inlet end of the reverse osmosis membrane filter element through the cleaning component, facilitating the circulating flushing of the reverse osmosis membrane filter element and improving the flushing effect. At the same time, since no separate circulation pipe is required, the cost of the water purification equipment can be reduced, the internal piping connection of the water purification equipment can be simplified, and the user experience can be improved.

[0017] Furthermore, by using a circulation pump to drive the liquid circulation within the cleaning circuit, it is possible to avoid using a booster pump to drive the cleaning solution to circulate within the cleaning circuit. On the one hand, this avoids damage to the diaphragm within the booster pump, thereby extending the booster pump's service life. On the other hand, compared to using a booster pump to drive the cleaning solution to circulate within the cleaning circuit, the absence of high pressure reduces the amount of cleaning solution permeating to the pure water end of the reverse osmosis membrane filter element. This not only reduces chemical residues but also minimizes damage to the membrane of the reverse osmosis membrane filter element.

[0018] Furthermore, using a booster pump to drive the liquid circulation within the cleaning circuit eliminates the need for a separate circulation pump, thereby further reducing the cost of the water purification equipment, simplifying the piping connections, and reducing the size of the equipment. When the water purification equipment is in cleaning mode, the booster pump can operate at a lower voltage level, resulting in lower water pressure during the circulation process. This prevents the cleaning solution from seeping into the pure water end of the reverse osmosis membrane filter, reducing chemical residues, and also prevents the cleaning solution from damaging the diaphragm inside the booster pump.

[0019] Furthermore, by setting up flow control components, the water flow rate from the wastewater end of the reverse osmosis membrane filter to the inlet end can be controlled. When the water purification equipment is in normal water production mode, the amount of wastewater returning to the inlet end of the reverse osmosis membrane filter after filtration can be adjusted to control the wastewater recovery rate. On the one hand, this avoids water waste due to a low wastewater recovery rate; on the other hand, it avoids affecting the service life of the reverse osmosis membrane filter due to a high wastewater recovery rate. By setting up dirt collection components, dirt in the cleaning circuit can be collected during cleaning or cyclic rinsing of the reverse osmosis membrane filter, preventing secondary pollution of the reverse osmosis membrane filter by the cleaned (or rinsed) dirt. By setting up auxiliary cleaning components, it is easier for the cleaning liquid to react physically or chemically with the dirt on the reverse osmosis membrane filter, thereby helping to remove dirt from the reverse osmosis membrane filter and further improving the cleaning efficiency and effect of the reverse osmosis membrane filter, thus enhancing the user experience.

[0020] Furthermore, by setting up a return pipe and return valve (or drain pipe and drain valve), the pure water containing detergent at the pure water end of the reverse osmosis membrane filter can be discharged to the upstream end of the booster pump after the reverse osmosis membrane filter is cleaned. This removes the small amount of residual detergent from the water purification equipment, helping to achieve zero additives and zero chemical pollution. At the same time, when the water purification equipment is in normal water production mode and does not produce water for a long time, it can also avoid the situation of "the TDS value of the first cup of water increasing". Attached Figure Description

[0021] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model;

[0024] Figure 3 This is a structural schematic diagram of Embodiment 3 of this utility model;

[0025] Figure 4 This is a structural schematic diagram of Embodiment 4 of this utility model;

[0026] Figure 5 This is a structural schematic diagram of Embodiment 5 of this utility model;

[0027] Figure 6 This is a structural schematic diagram of Embodiment Six of this utility model;

[0028] Figure 7 This is a structural schematic diagram of Embodiment Seven of this utility model;

[0029] Figure 8 This is a structural schematic diagram of Embodiment 8 of this utility model;

[0030] Figure 9 This is a structural schematic diagram of Embodiment Nine of this utility model;

[0031] Figure 10 This is a structural schematic diagram of Embodiment 10 of this utility model;

[0032] Figure 11 This is a structural schematic diagram of Embodiment Eleven of this utility model;

[0033] Figure 12 This is a structural schematic diagram of Embodiment Twelve of this utility model;

[0034] Figure 13 This is a schematic diagram of one structure of the composite cleaning agent filter element of this utility model;

[0035] Figure 14 This is another structural schematic diagram of the composite cleaning agent filter element of this utility model;

[0036] Figure 15 This is another structural schematic diagram of the composite cleaning agent filter element of this utility model.

[0037] List of reference numerals in the attached diagram:

[0038] 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; 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. First check valve; 332. Second check valve; 34. 35. First connecting pipe; 36. Second connecting pipe; 37. Third connecting pipe; 38. Composite cleaning agent filter element; 39. Housing; 30. First chamber; 31. Second chamber; 32. First liquid inlet; 33. First liquid outlet; 34. Second liquid inlet; 35. Second liquid outlet; 36. First cleaning agent; 37. Second cleaning agent; 4. Pre-filter unit; 5. Pure water outlet pipe; 6. Pure water supply component; 7. Circulation pump; 8. Flow control component; 9. Dirt collection component; 10. Protective component. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In order to improve the cleaning effect of the reverse osmosis membrane filter, existing water purification equipment mentioned in the background technology needs to set up a separate circulation pipe to connect the water inlet and wastewater ends of the reverse osmosis membrane filter in sequence to form a cleaning loop. This results in high cost of water purification equipment and complex internal piping connections, which in turn leads to a poor user experience. This utility model provides a water purification device.

[0043] like Figures 1 to 12 As shown, the water purification equipment of this utility model includes a main water inlet 1, a reverse osmosis membrane filter element 2, and a cleaning component. 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.

[0044] The cleaning component has a cleaning agent storage component, a cleaning inlet 301, and a cleaning outlet 302. The cleaning agent storage component is used to store cleaning agent. The cleaning inlet 301 is connected to the wastewater end of the reverse osmosis membrane filter element 2 so that water from the wastewater end of the reverse osmosis membrane filter element enters the cleaning agent storage component through the cleaning inlet to dissolve the cleaning agent and form a cleaning solution. The cleaning outlet 302 is connected to the water inlet end of the reverse osmosis membrane filter element 2. The water inlet end of the reverse osmosis membrane filter element 2, the wastewater end of the reverse osmosis membrane filter element 2, and the cleaning component are connected in sequence to form a cleaning circuit. The water purification equipment can drive the cleaning solution to circulate in the cleaning circuit to clean the reverse osmosis membrane filter element 2.

[0045] This setup allows the cleaning inlet 301 of the cleaning component to be directly connected to the wastewater end of the reverse osmosis membrane filter element 2, and the cleaning outlet 302 to be connected to the inlet end of the reverse osmosis membrane filter element 2. This facilitates the sequential connection of the inlet end, wastewater end, and cleaning component of the reverse osmosis membrane filter element 2 to form a cleaning loop. On one hand, when the water purification equipment is in cleaning mode, the cleaning solution circulates within the cleaning loop, repeatedly flushing the reverse osmosis membrane filter element 2 and improving its cleaning effect. On the other hand, after cleaning, when the water purification equipment is in flushing mode, the water from the wastewater end of the reverse osmosis membrane filter element 2 can be transported through the cleaning component to the inlet end of the reverse osmosis membrane filter element 2, facilitating its cyclic flushing and improving the flushing effect. Furthermore, since no additional circulation pipe is required, the cost of the water purification equipment is reduced, the internal piping connections are simplified, and the user experience is enhanced.

[0046] Specifically, when the water purification equipment is in cleaning mode, the water in the main inlet 1 enters the reverse osmosis membrane filter element 2 through the inlet end of the reverse osmosis membrane filter element 2, and then the water at the wastewater end of the reverse osmosis membrane filter element 2 enters the cleaning component through the cleaning inlet 301 to form cleaning liquid, and then flows into the reverse osmosis membrane filter element 2 through the cleaning outlet 302. The water purification equipment drives the cleaning liquid to circulate in the cleaning circuit to clean the reverse osmosis membrane filter element 2.

[0047] It should be noted that, in practical applications, those skilled in the art can configure the cleaning inlet 301 to be connected to the wastewater outlet pipe 21 of the water purification equipment, or the cleaning inlet 301 can be directly connected to the wastewater outlet of the reverse osmosis membrane filter element 2, or the reverse osmosis membrane filter element 2 can be configured to have two wastewater outlets, one of which is connected to the wastewater outlet pipe 21 and the other is connected to the cleaning inlet 301, etc. Such adjustments and changes to the specific connection method of the cleaning inlet 301 and the wastewater end of the reverse osmosis membrane filter element 2 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.

[0048] Preferably, the water purification equipment also includes a wastewater outlet pipe 21 and a wastewater valve 211 installed on the wastewater outlet pipe 21, with the clean inlet 301 connected to the upstream end of the wastewater valve 211.

[0049] With this configuration, when cleaning the reverse osmosis membrane filter element 2, the dirt cleaned from the reverse osmosis membrane filter element 2 can be prevented from flowing into the wastewater valve 211 and clogging it, thereby extending the service life of the wastewater valve 211.

[0050] In one specific embodiment, such as Figure 1 and Figure 2 As shown, the cleaning assembly includes only a first cleaning module, wherein the first cleaning module includes a first cleaning pipe 311, a first cleaning valve 312 and a first cleaning agent storage component 313 disposed on the first cleaning pipe 311, the water inlet end of the first cleaning pipe 311 forms a cleaning inlet 301, the water outlet end of the first cleaning pipe 311 forms a cleaning outlet 302, and the first cleaning valve 312 is located between the cleaning inlet 301 and the first cleaning agent storage component 313.

[0051] In another specific embodiment, such as Figures 3 to 12 As shown, the cleaning components include a first cleaning module and a second cleaning module. The water inlet of both the first and second cleaning modules can be connected to the cleaning inlet 301, and the water outlet of both the first and second cleaning modules can be connected to the cleaning outlet 302.

[0052] Preferably, the cleaning component is configured to include a first cleaning module and a second cleaning module, wherein the water inlet of both the first and second cleaning modules can be connected to the cleaning inlet 301, and the water outlet of both the first and second cleaning modules can be connected to the cleaning outlet 302.

[0053] By configuring the cleaning components to include a first cleaning module and a second cleaning module, it is possible to use different types of cleaning agents to clean the reverse osmosis membrane filter element 2. This makes it easier to select the appropriate cleaning agent based on the type of dirt on the reverse osmosis membrane filter element 2, thereby improving the cleaning effect of the reverse osmosis membrane filter element 2 and further enhancing the user experience.

[0054] It should be noted that, in practical applications, this utility model does not impose any restrictions on the connection method between the first cleaning module and the second cleaning module, as long as the water inlet of both the first cleaning module and the second cleaning module can be connected to the cleaning inlet 301, and the water outlet of both the first cleaning module and the second cleaning module can be connected to the cleaning outlet 302.

[0055] The following two embodiments will be described in detail.

[0056] Example 1:

[0057] like Figures 3 to 8 As shown, the first cleaning module includes a first cleaning pipe 311, a first cleaning valve 312 disposed on the first cleaning pipe 311, and a first cleaning agent storage component 313. The second cleaning module includes a second cleaning pipe 321, a second cleaning valve 322 disposed on the second cleaning pipe 321, and a second cleaning agent storage component 323. The first end of the first cleaning pipe 311 and the first end of the second cleaning pipe 321 meet and are connected to the cleaning inlet 301 through a first connecting pipe 34. The second end of the first cleaning pipe 311 and the second end of the second cleaning pipe 321 meet and are connected to the cleaning outlet 302 through a second connecting pipe 35. The first cleaning valve 312 is located between the cleaning inlet 301 and the first cleaning agent storage component 313, and the second cleaning valve 322 is located between the cleaning inlet 301 and the second cleaning agent storage component 323.

[0058] When the first cleaning module needs to clean the reverse osmosis membrane filter element 2, the first cleaning valve 312 is opened and the second cleaning valve 322 is closed, so that the water entering from the cleaning inlet 301 flows into the first cleaning agent storage component 313, dissolving the cleaning agent in the first cleaning agent storage component 313 to form a cleaning liquid, and then the cleaning liquid is circulated in the cleaning circuit, thereby repeatedly flushing the reverse osmosis membrane filter element 2 and improving the cleaning effect.

[0059] When the second cleaning module needs to clean the reverse osmosis membrane filter element 2, the first cleaning valve 312 is closed and the second cleaning valve 322 is opened, so that the water entering from the cleaning inlet 301 flows into the second cleaning agent storage component 323, dissolves the cleaning agent in the second cleaning agent storage component 323 to form a cleaning liquid, and then makes the cleaning liquid circulate in the cleaning circuit, thereby repeatedly flushing the reverse osmosis membrane filter element 2.

[0060] It should be noted that, in practical applications, this utility model does not limit the specific driving method for the liquid circulation within the cleaning circuit of the water purification equipment. For example, a circulation pump 6 can be set up to drive the liquid circulation within the cleaning circuit, or the booster pump 12 of the water purification equipment can be used to drive the liquid circulation within the cleaning circuit, etc. Such adjustments and changes to the specific driving method for the liquid circulation within the cleaning circuit of the water purification equipment 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.

[0061] The following two scenarios will be discussed in detail.

[0062] Scenario 1:

[0063] like Figures 5 to 8 As shown, the water purification equipment also includes a circulation pump 6, which is installed on the cleaning circuit and is used to drive the cleaning liquid to circulate within the cleaning circuit.

[0064] By using a circulation pump 6 to drive the liquid circulation within the cleaning circuit, the use of a booster pump 12 to drive the cleaning fluid circulation within the cleaning circuit can be avoided. On the one hand, this avoids damage to the diaphragm within the booster pump 12, thereby extending the service life of the booster pump 12. On the other hand, compared to using a booster pump 12 to drive the cleaning fluid circulation within the cleaning circuit, the absence of high pressure reduces the amount of cleaning fluid penetrating to the pure water end of the reverse osmosis membrane filter element 2. This not only reduces chemical residues but also minimizes damage to the membrane of the reverse osmosis membrane filter element 2.

[0065] It should be noted that this utility model does not impose any restrictions on the specific location of the circulating pump 6 in the cleaning circuit, as long as it can drive the cleaning fluid to circulate within the cleaning circuit.

[0066] In one specific embodiment, such as Figure 5 and Figure 6 As shown, the circulation pump 6 is mounted on the first connecting pipe 34 and is used to drive the liquid circulation flow within the cleaning circuit.

[0067] like Figure 5 and Figure 6 As shown, the water purification equipment also includes a protective component 9, which is disposed between the circulation pump 6 and the cleaning inlet 301 and can withstand the water pressure at the wastewater end of the reverse osmosis membrane filter element 2.

[0068] Specifically, the protective component 9 located between the circulating pump 6 and the cleaning inlet 301 is a pressure reducing valve.

[0069] In another possible embodiment, such as Figure 7 and Figure 8As shown, the circulation pump 6 is mounted on the second connecting pipe 35 and is used to drive the liquid circulation flow within the cleaning circuit.

[0070] like Figures 7 to 8 As shown, the water purification equipment also includes a protective component 9, which is disposed between the circulation pump 6 and the clean outlet 302 and can withstand the water pressure in the main water inlet 1.

[0071] It should be noted that when the water purification equipment is in normal water production mode, the water pressure in the main inlet pipe 1 and the wastewater outlet pipe 21 is relatively high due to the pressurization effect of the booster pump 12. In order to reduce costs and increase efficiency, the circulation pump 6 is usually set as a water pump that cannot withstand high pressure. By setting the protective component 9, the problem of water leakage caused by high pressure in the circulation pump 6 can be avoided.

[0072] It should be noted that the protective component 9 set between the circulating pump 6 and the cleaning outlet 302 can be a one-way valve, a pressure reducing valve, etc. Such adjustments and changes to the specific setting type of the protective component 9 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0073] Preferably, the protective component 9 disposed between the circulating pump 6 and the cleaning outlet 302 is a one-way valve.

[0074] It should also be noted that although the present invention describes the specific installation position of the circulation pump 6 using the above two embodiments, this is not restrictive. For example, the circulation pump 6 can also be installed on the main water inlet 1 between the cleaning outlet 302 and the reverse osmosis membrane filter element 2, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be included within the protection scope of the present invention.

[0075] It should be noted that, in practical applications, this utility model does not impose any limitations on the specific connection method between the cleaning outlet 302 and the inlet end of the reverse osmosis membrane filter element 2. For example, the cleaning outlet 302 can be set to be connected to the main inlet 1, and the cleaning liquid can be transported to the reverse osmosis membrane filter element 2 through the main inlet 1. Alternatively, the reverse osmosis membrane filter element 2 can be set to have two inlets, with the main inlet 1 connected to one of the inlets and the cleaning outlet 302 connected to the other inlet, etc. 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.

[0076] Preferably, the clean outlet 302 is connected to the main water inlet 1, wherein the clean outlet 302 is located at the downstream end of the booster pump 12.

[0077] By setting the cleaning outlet 302 to be located downstream of the booster pump 12, the cleaning liquid can be prevented from flowing through the booster pump 12, thereby preventing the cleaning liquid from damaging the diaphragm inside the reverse osmosis membrane filter element 2 and extending the service life of the booster pump 12.

[0078] Scenario 2:

[0079] like Figure 3 and Figure 4 As shown, the cleaning outlet 302 is connected to the main water inlet 1, and the booster pump 12 of the water purification equipment is located at the downstream end of the cleaning outlet 302. The booster pump 12 can drive the liquid circulation flow in the cleaning circuit.

[0080] By using a booster pump 12 to drive the liquid circulation in the cleaning circuit, it is possible to avoid the need for a separate circulation pump 6, thereby further reducing the cost of the water purification equipment, further simplifying the piping connections within the water purification equipment, and also reducing the size of the water purification equipment.

[0081] Preferably, the booster pump 12 includes at least a first voltage level and a second voltage level. The booster pump 12 has a level adjustment module, which is used to adjust the voltage level of the booster pump 12 to the second voltage level when the water purification equipment is in the cleaning mode. The voltage value of the second voltage level is lower than the voltage value of the first voltage level.

[0082] With this setting, when the water purifier is in cleaning mode, the booster pump 12 can operate at a lower voltage level, resulting in lower water pressure during the circulation of the cleaning solution. On the one hand, this prevents the cleaning solution from seeping into the pure water end of the reverse osmosis membrane filter element 2, reducing chemical residues. On the other hand, it also prevents the cleaning solution from damaging the diaphragm inside the booster pump 12.

[0083] It should be noted that the gear adjustment module can be installed on the outer casing of the water purifier. When the water purifier is in cleaning mode, the user can adjust the gear of the booster pump 12 by operating the gear adjustment module. Alternatively, the gear adjustment module can be connected to the controller of the water purifier to realize the automatic adjustment of the voltage level of the booster pump 12, etc. Such flexible adjustment and change do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0084] For example, the speed adjustment module is connected to the controller of the water purification equipment to realize the automatic adjustment of the voltage speed of the booster pump 12.

[0085] Preferably, such as Figures 1 to 8As shown, the water purification device of this utility model also includes a one-way valve. The one-way valve is located at the downstream end of the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323. The one-way valve can prevent water in the main water inlet 1 from flowing back into the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323 through the cleaning outlet 302.

[0086] By setting a one-way valve, water in the main water inlet 1 can be prevented from flowing back through the cleaning outlet 302 into the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323, thereby preventing the cleaning agent from dissolving.

[0087] It should be noted that, in practical applications, this utility model does not limit the specific location of the check valve. For example, the check valve can be simultaneously located downstream of the first detergent storage component 313 and the second detergent storage component 323, or the check valve can be located downstream of either the first detergent storage component 313 or the second detergent storage component 323, etc. Such adjustments and changes to the specific location of the check valve do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0088] Preferably, such as Figures 5 to 8 As shown, the first check valve 331 and the second check valve 332 are respectively disposed on the first cleaning pipe 311 and the second cleaning pipe 321.

[0089] Preferably, such as Figure 3 and Figure 4 As shown, the first check valve 331 is installed on the first cleaning pipe 311, and the second check valve 332 is installed on the second connecting pipe 35.

[0090] Example 2:

[0091] like Figure 9 and Figure 10 As shown, the first cleaning module includes a first cleaning pipe 311 and a first cleaning agent storage component 313 disposed on the first cleaning pipe 311. The second cleaning module includes a second cleaning pipe 321, a second cleaning valve 322 disposed on the second cleaning pipe 321, and a second cleaning agent storage component 323. The cleaning assembly also includes a third connecting pipe 36 and a first cleaning valve 312 disposed on the third connecting pipe 36. The first end of the third connecting pipe 36 intersects with the water inlet end of the second cleaning pipe 321 and is connected to the cleaning inlet 301 through the first connecting pipe 34. The second end of the third connecting pipe 36 intersects with the water outlet end of the second cleaning pipe 321 and is connected to the water inlet end of the first cleaning pipe 311. The water outlet end of the first cleaning pipe 311 forms a cleaning outlet 302.

[0092] When the water purification equipment is in cleaning mode, the first cleaning module is used to clean the reverse osmosis membrane filter element 2. That is, the first cleaning valve 312 is opened and the second cleaning valve 322 is closed, so that the water entering from the cleaning inlet 301 flows into the first cleaning agent storage component 313, dissolving the cleaning agent in the first cleaning agent storage component 313 to form a cleaning liquid. The cleaning liquid is then circulated in the cleaning circuit, thereby repeatedly flushing the reverse osmosis membrane filter element 2 and improving the cleaning effect.

[0093] When the second cleaning module needs to clean the reverse osmosis membrane filter element 2, the first cleaning valve 312 is closed and the second cleaning valve 322 is opened, so that the water entering from the cleaning inlet 301 flows into the second cleaning agent storage component 323, dissolving the cleaning agent in the second cleaning agent storage component 323 to form a cleaning solution. The cleaning solution then flows through the first cleaning agent storage component 313 to the water inlet end of the reverse osmosis membrane filter element 2, thereby circulating the cleaning solution in the cleaning circuit and repeatedly flushing the reverse osmosis membrane filter element 2.

[0094] It should be noted that, in practical applications, this utility model does not limit the specific driving method for the liquid circulation flow within the cleaning circuit of the water purification equipment. For example, a circulation pump 6 can be installed on the first cleaning pipe 311 to drive the liquid circulation flow within the cleaning circuit; alternatively, a booster pump 12 of the water purification equipment can also drive the liquid circulation flow within the cleaning circuit, and so on. Such adjustments and changes to the specific driving method for the liquid circulation flow within the cleaning circuit of the water purification equipment do not deviate from the principles and scope of this utility model and should all be included within the protection scope of this utility model.

[0095] In one specific embodiment, such as Figure 9 and Figure 10 As shown, the water purification equipment also includes a circulation pump 6, which is installed on the first cleaning pipe 311 and is used to drive the liquid circulation flow in the cleaning circuit.

[0096] By using a circulation pump 6 to drive the liquid circulation within the cleaning circuit, it is possible to avoid using a booster pump 12 to drive the cleaning solution to circulate within the cleaning circuit. On the one hand, this avoids damage to the diaphragm within the booster pump 12, thereby extending the service life of the booster pump 12. On the other hand, compared to using a booster pump 12 to drive the cleaning solution to circulate within the cleaning circuit, the absence of high pressure reduces the amount of cleaning solution permeating to the pure water end of the reverse osmosis membrane filter element 2. This not only reduces chemical residues but also minimizes damage to the membrane of the reverse osmosis membrane filter element 2.

[0097] In another specific embodiment, such as Figure 11 and Figure 12As shown, the cleaning outlet 302 is connected to the main water inlet 1, and the booster pump 12 of the water purification equipment is located at the downstream end of the cleaning outlet 302. The booster pump 12 can drive the liquid circulation flow in the cleaning circuit.

[0098] By using a booster pump 12 to drive the liquid circulation in the cleaning circuit, it is possible to avoid the need for a separate circulation pump 6, thereby further reducing the cost of the water purification equipment, further simplifying the piping connections within the water purification equipment, and also reducing the size of the water purification equipment.

[0099] Preferably, the booster pump 12 includes at least a first voltage level and a second voltage level. The booster pump 12 has a level adjustment module, which is used to adjust the voltage level of the booster pump 12 to the second voltage level when the water purification equipment is in the cleaning mode. The voltage value of the second voltage level is lower than the voltage value of the first voltage level.

[0100] With this setting, when the water purifier is in cleaning mode, the booster pump 12 can operate at a lower voltage level, resulting in lower water pressure during the circulation of the cleaning solution. On the one hand, this prevents the cleaning solution from seeping into the pure water end of the reverse osmosis membrane filter element 2, reducing chemical residues. On the other hand, it also prevents the cleaning solution from damaging the diaphragm inside the booster pump 12.

[0101] It should be noted that the gear adjustment module can be installed on the outer casing of the water purifier. When the water purifier is in cleaning mode, the user can adjust the gear of the booster pump 12 by operating the gear adjustment module. Alternatively, the gear adjustment module can be connected to the controller of the water purifier to realize the automatic adjustment of the voltage level of the booster pump 12, etc. Such flexible adjustment and change do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0102] For example, the speed adjustment module is connected to the controller of the water purification equipment to realize the automatic adjustment of the voltage speed of the booster pump 12.

[0103] Preferably, such as Figures 9 to 11 As shown, the water purification device of this utility model also includes a one-way valve. The one-way valve is located at the downstream end of the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323. The one-way valve can prevent water in the main water inlet 1 from flowing back into the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323 through the cleaning outlet 302.

[0104] By setting a one-way valve, water in the main water inlet 1 can be prevented from flowing back through the cleaning outlet 302 into the first cleaning agent storage component 313 and / or the second cleaning agent storage component 323, thereby preventing the cleaning agent from dissolving.

[0105] Specifically, such as Figures 9 to 12 As shown, the first check valve 331 is located at the downstream end of the first detergent storage component 313, and the second check valve 332 is located at the downstream end of the second detergent storage component 323.

[0106] It should be noted that the first one-way valve 331 can be set on the first cleaning pipe 311 and the second cleaning valve 332 can be set on the second cleaning pipe 321. Alternatively, the first one-way valve 331 can be set on the first cleaning pipe 311 and the second one-way valve 332 can be set on the second connecting pipe 35. Or, the first one-way valve 331 can be set on the second connecting pipe 35 and the second one-way valve 332 can be set on the second cleaning pipe 321, and so on. Such adjustments and changes to the specific positions of the first one-way valve 331 and the second one-way valve 332 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.

[0107] like Figure 9 As shown, the first check valve 331 can also resist the water pressure in the main water inlet 1, preventing the circulating pump 6 from leaking due to high pressure.

[0108] It should be noted that although the present invention is described using the above two embodiments to illustrate the cleaning component, this is not restrictive. Any other possible forms do not depart from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0109] It should be noted that, in practical applications, this utility model does not impose any limitations on the type of cleaning agent in the first cleaning agent storage component 313 and the second cleaning agent storage component 323. For example, the cleaning agent can be set to an acidic cleaning agent, or it can be set to an alkaline cleaning agent, or it can be set to an oxidizing cleaning agent, etc. Such adjustments and changes to the type of cleaning agent do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0110] Preferably, the first cleaning agent storage component 313 is used to store acidic cleaning agents, and the second cleaning agent storage component 323 is used to store alkaline cleaning agents.

[0111] It should be noted that this utility model does not limit the specific type of acidic cleaning agent. For example, the acidic cleaning agent can be set to 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 cleaning agents. Those skilled in the art can make adjustments according to actual needs.

[0112] It should also be noted that this utility model does not limit the specific type of alkaline cleaning agent. For example, the alkaline cleaning agent can be set to at least one of dishwashing powder, baking soda, sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, sodium citrate, tetrasodium ethylenediaminetetraacetate, sodium dodecyl sulfate, sodium disulfite, and sodium bisulfite. Of course, the alkaline cleaning agent can also be other types of alkaline cleaning agents, and those skilled in the art can make adjustments according to actual needs.

[0113] It should be noted that the first cleaning agent storage component 313 is not limited to being configured to store acidic cleaning agents, and the second cleaning agent storage component 323 is configured to store alkaline cleaning agents. For example, the first cleaning agent storage component 313 can also be configured to store alkaline cleaning agents, and the second cleaning agent storage component 323 can be configured to store acidic cleaning agents, 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.

[0114] Preferably, the first cleaning agent storage component 313 is used to store acidic cleaning agents, and the second cleaning agent storage component 323 is used to store alkaline cleaning agents.

[0115] It should be noted that the reverse osmosis membrane filter element 2 can be cleaned first using the cleaning agent in the first cleaning agent storage component 313, and then the cleaning agent in the second cleaning agent storage component 323 can be used to clean the reverse osmosis membrane filter element 2. Alternatively, the cleaning agent in the second cleaning agent storage component 323 can be used first to clean the reverse osmosis membrane filter element 2, and then the cleaning agent in the first cleaning agent storage component 313 can be used to clean the reverse osmosis membrane filter element 2, and so on. Such adjustments and changes to the cleaning order of the first cleaning agent storage component 313 and the second cleaning agent storage component 323 for cleaning the reverse osmosis membrane filter element 2 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.

[0116] It should be noted that in practical applications, the first detergent storage component 313 and the second detergent storage component 323 can be set as two independent modules, or the first detergent storage component 313 and the second detergent storage component 323 can be set as a composite detergent filter element, etc. Such adjustments and changes to the specific structural types of the first detergent storage component 313 and the second detergent storage component 323 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.

[0117] Preferably, the first detergent storage component 313 and the second detergent storage component 323 are composite detergent filter cartridges.

[0118] Specifically, such as Figures 13 to 15As shown, the composite cleaning agent filter element includes a housing 371 and a first cleaning agent 3751 and a second cleaning agent 3752 disposed within the housing 371. The housing 371 is provided with a first liquid inlet 3731, a first liquid outlet 3732, a second liquid inlet 3741, and a second liquid outlet 3742. The housing 371 is provided with a first chamber 3721 and a second chamber 3722. The first liquid inlet 3731 and the first liquid outlet 3732 are both connected to the first chamber 3721, and the second liquid inlet 3741 and the second liquid outlet 3742 are both connected to the second chamber 3722. The first cleaning agent 3751 is disposed within the first chamber 3721, and the second cleaning agent 3752 is disposed within the second chamber 3722.

[0119] It should be noted that this utility model does not impose any limitation on the relative positions of the first chamber 3721 and the second chamber 3722 within the housing 371, as long as the first chamber 3721 and the second chamber 3722 that are independent of each other can be formed within the housing 371.

[0120] In one specific embodiment, such as Figure 13 As shown, both the first chamber 3721 and the second chamber 3722 are annular, and the first chamber 3721 is located outside the second chamber 3722.

[0121] In another specific embodiment, such as Figure 14 As shown, the first chamber 3721 and the second chamber 3722 are spaced apart in the horizontal direction.

[0122] In another possible embodiment, such as Figure 15 As shown, the first chamber 3721 and the second chamber 3722 are arranged at intervals along the vertical direction.

[0123] It should also be noted that, in order to further save costs, the cleaning component can also be connected to the water circuit of the water purification equipment as a detachable unit.

[0124] Preferably, such as Figures 1 to 12 As shown, the water purification equipment of this utility model also includes a flow control component 7, wherein the flow control component 7 is used to regulate the water flow from the cleaning inlet 301 to the cleaning outlet 302.

[0125] 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.

[0126] 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.

[0127] Preferably, the flow control component 7 is a wastewater ratio.

[0128] Preferably, such as Figures 1 to 12 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.

[0129] 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.

[0130] 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.

[0131] Preferably, the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323 are configured to store cleaning agent when in a first working state and to collect dirt in the cleaning circuit when in a second working state.

[0132] With this configuration, dirt can be collected by the first detergent storage component 313 and / or the second detergent storage component 323, eliminating the need for additional impurity collection components and further reducing the cost of the water purification equipment.

[0133] Preferably, the water purification device of this utility model further includes an auxiliary cleaning component, which is configured to promote the interaction between the cleaning liquid and the dirt on the reverse osmosis membrane filter element 2, thereby removing the dirt from the reverse osmosis membrane filter element 2.

[0134] By setting up auxiliary cleaning components, it is easier for the cleaning solution to react physically or chemically with the dirt on the reverse osmosis membrane filter element 2, thereby making it easier to remove 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 enhancing the user experience.

[0135] It should be noted that, in practical applications, this utility model does not impose any restrictions on the specific type of auxiliary cleaning components, as long as they can promote the interaction between the cleaning liquid and the dirt on the reverse osmosis membrane filter element 2, thereby removing the dirt from the reverse osmosis membrane filter element 2.

[0136] In one specific embodiment, the auxiliary cleaning component includes a heating module, wherein the heating module is disposed on the cleaning circuit.

[0137] This setup allows hot cleaning fluid to be delivered into the reverse osmosis membrane filter element 2, promoting the interaction between the cleaning fluid and the dirt on the reverse osmosis membrane filter element 2, thereby aiding in the removal of dirt. In addition, the heating module also helps dissolve the cleaning agent, thereby increasing the dissolution rate and solubility of the cleaning agent, further enhancing the user experience.

[0138] It should be noted that this utility model does not limit the specific location of the heating module in the cleaning circuit. For example, the heating module can be set on the cleaning pipeline, or on the circulation pipe, or it can be set outside the cleaning agent storage component, etc. Such adjustments and changes to the specific location of the heating module do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0139] In another specific embodiment, the auxiliary cleaning component includes an ultrasonic module, wherein the ultrasonic module is disposed outside the reverse osmosis membrane filter element 2 and is capable of causing the reverse osmosis membrane filter element 2 to vibrate at high frequency and low amplitude, which helps to remove dirt from the reverse osmosis membrane filter element 2.

[0140] In another specific embodiment, the auxiliary cleaning component includes a bubble generator, which is capable of generating bubbles that promote the interaction of the cleaning fluid with the dirt on the reverse osmosis membrane filter element 2, thereby aiding in the removal of dirt.

[0141] Preferably, such as Figures 1 to 12 As shown, the water purification equipment of this utility model also includes a pre-filter unit 4. The outlet end of the pre-filter unit 4 is connected to the main water inlet 1, and the clean outlet 302 is located at the downstream end of the pre-filter unit 4.

[0142] With this configuration, by placing the cleaning inlet 301 downstream of the pre-filter unit 4, the purified water filtered by the pre-filter unit 4 can enter the reverse osmosis membrane filter element 2 through the main inlet pipe 1, and then be transported to the first cleaning agent storage component 313 or the second cleaning agent storage component 323 through the wastewater outlet pipe 21. The purified water filtered by the pre-filter unit 4 is used to dissolve the cleaning agent, thereby improving the solubility of the cleaning agent and the cleanliness of the cleaning solution, thus effectively improving the cleaning effect of the reverse osmosis membrane filter element 2.

[0143] It should be noted that, in practical applications, those skilled in the art can set the pre-filter unit 4 as a pre-filter cartridge, or they can set the pre-filter unit 4 as a composite cartridge including a pre-filter cartridge and a post-filter cartridge, etc. Such adjustments and changes to the specific type of the pre-filter unit 4 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.

[0144] Preferably, the pre-filter unit 4 is a pre-filter cartridge.

[0145] Preferably, such as Figures 1 to 12 As shown, the water purification equipment of this utility model also includes a pure water outlet pipe 5 and a pure water user component 51. The pure water end of the reverse osmosis membrane filter element 2 is connected to the pure water user component 51 through the pure water outlet pipe 5.

[0146] It should be noted that, in practical applications, those skilled in the art can directly configure the pure water component 51 as a water outlet component (such as a faucet or spout), with the filtered pure water flowing out from the faucet or spout for user use. Alternatively, the pure water component 51 can be configured as a post-filter, with the filtered pure water flowing into the post-filter to improve the taste for user use. Or, the pure water component 51 can be configured as a pure water tank, with the pure water filtered by the reverse osmosis membrane filter 2 flowing into the pure water tank for storage for user use, and so on. Such adjustments and changes to the specific configuration of the pure water component 51 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.

[0147] Preferably, the pure water component 51 is a post-filter.

[0148] It should be noted that when cleaning the reverse osmosis membrane filter element 2, a small amount of cleaning agent will permeate through the membrane of the reverse osmosis membrane filter element 2 to the pure water end. Therefore, after cleaning, there will be a small amount of cleaning agent residue on the pure water end of the reverse osmosis membrane filter element 2. The residual cleaning agent needs to be discharged before it is used by the user.

[0149] The following two scenarios will be discussed in detail.

[0150] Scenario 1:

[0151] like Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 11 As shown, the water purification equipment also includes a return pipe 23 and a return valve 231. One end of the return pipe 23 is connected to the pure water outlet pipe 5, and the other end of the return pipe 23 is connected to the upstream end of the booster pump 12. The return valve 231 is installed on the return pipe 23 and is used to control the opening and closing of the return pipe 23.

[0152] With this setup, on the one hand, after cleaning the reverse osmosis membrane filter 2, the pure water containing detergent from the pure water end of the reverse osmosis membrane filter 2 can be discharged to the upstream end of the booster pump 12 for further filtration through the reverse osmosis membrane filter 2, thus removing any remaining small amount of detergent from the water purification equipment. This helps achieve zero additives and zero chemical pollution. On the other hand, when the water purification equipment is in normal water production mode and does not produce water for a long time, the reverse osmosis membrane filter 2 may experience an increase in the TDS value of the first cup of water. The "first cup of water" can also be returned to the upstream end of the booster pump 12 through the return pipe 23 to prevent users from drinking water with a high TDS value.

[0153] Scenario 2:

[0154] like Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 and Figure 12 As shown, the water purification equipment also includes a drain pipe 22 and a drain valve 221. One end of the drain pipe 22 is connected to the pure water outlet pipe 5, and the other end is connected to the wastewater outlet pipe 21. The drain valve 221 is installed on the drain pipe 22 and is used to control the opening and closing of the drain pipe 22.

[0155] With this setup, after cleaning the reverse osmosis membrane filter element 2, first open the drain valve 221 to allow the water from the pure water end of the reverse osmosis membrane filter element 2 to flow into the wastewater outlet pipe 21 through the drain pipe 22. After the pure water containing the cleaning agent is completely discharged, close the drain valve 221 to allow the water from the pure water end of the reverse osmosis membrane filter element 2 to flow into the pure water water component 51 through the pure water outlet pipe 5. This allows residual cleaning agent to be discharged from the water purification equipment, helping to achieve zero additives and zero chemical pollution, and further improving the user experience.

[0156] It should also be noted that although this utility model is described in the above two cases, it is not restrictive. For example, the other end of the drain pipe 22 can be directly connected to the drain pipe or the wastewater outlet of the water purification equipment, and the pure water containing detergent can be directly discharged to the drain pipe or the wastewater outlet of the water purification equipment.

[0157] Preferably, such as Figures 1 to 12 As shown, the water purification equipment of this utility model also includes an inlet valve 11 installed on the main inlet water line 1, which is used to control the opening and closing of the main inlet water line 1.

[0158] It should be noted that, in practical applications, those skilled in the art can configure the water purification equipment as a water purifier, or as an integrated water purifier and drinking water machine, or as any other possible type, etc. Such adjustments and changes to the specific configuration type of the water purification equipment do not deviate from the principles and scope of this utility model and should all be included within the protection scope of this utility model.

[0159] For example, the water purification device is a water purifier.

[0160] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this 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 path (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); and a cleaning assembly having a cleaning agent storage member used for storing a cleaning agent, a cleaning inlet (301) in communication with a wastewater end of the reverse osmosis membrane filter core (2) so that water at the wastewater end of the reverse osmosis membrane filter core (2) enters the cleaning agent storage member through the cleaning inlet (301) to dissolve the cleaning agent to form a cleaning liquid, and a cleaning outlet (302) in communication with the water inlet end of the reverse osmosis membrane filter core (2), the water inlet end of the reverse osmosis membrane filter core (2), the wastewater end of the reverse osmosis membrane filter core (2), and the cleaning assembly being sequentially in communication to form a cleaning loop, wherein the water purification device is capable of driving the cleaning liquid to circulate in the cleaning loop to clean the reverse osmosis membrane filter core (2).

2. The water purification apparatus according to claim 1, characterized by The cleaning assembly comprises a first cleaning module, the first cleaning module comprising a first cleaning pipe (311), a first cleaning agent storage member (313) arranged on the first cleaning pipe (311), and a first cleaning valve (312), a water inlet end of the first cleaning pipe (311) forming the cleaning inlet (301), a water outlet end of the first cleaning pipe (311) forming the cleaning outlet (302), and the first cleaning valve (312) being located between the cleaning outlet (302) and the first cleaning agent storage member (313). Alternatively, the cleaning assembly comprises a first cleaning module and a second cleaning module, a water inlet end of the first cleaning module and a water inlet end of the second cleaning module being capable of being in communication with the cleaning inlet (301), and a water outlet end of the first cleaning module and a water outlet end of the second cleaning module being capable of being in communication with the cleaning outlet (302).

3. The water purification apparatus according to claim 2, characterized by The first cleaning module comprises a first cleaning pipe (311), a first cleaning valve (312) arranged on the first cleaning pipe (311), and a first cleaning agent storage member (313), the second cleaning module comprises a second cleaning pipe (321), a second cleaning valve (322) arranged on the second cleaning pipe (321), and a second cleaning agent storage member (323), a first end of the first cleaning pipe (311) and a first end of the second cleaning pipe (321) being in communication with the cleaning inlet (301) through a first connecting pipe (34), and a second end of the first cleaning pipe (311) and a second end of the second cleaning pipe (321) being in communication with the cleaning outlet (302) through a second connecting pipe (35), the first cleaning valve (312) being located between the cleaning inlet (301) and the first cleaning agent storage member (313), and the second cleaning valve (322) being located between the cleaning inlet (301) and the second cleaning agent storage member (323).

4. The water purification apparatus according to claim 3, characterized by The water purification device further comprises a circulating pump (6) arranged on the first connecting pipe (34) or the second connecting pipe (35) and used for driving the liquid in the cleaning circuit to circulate and flow. Alternatively, the cleaning outlet (302) is communicated with the water inlet main circuit (1), and a booster pump (12) of the water purification device is located at a downstream end of the cleaning outlet (302), and the booster pump (12) can drive the liquid in the cleaning circuit to circulate and flow.

5. The water purification apparatus according to claim 4, characterized by The cleaning assembly further comprises a one-way valve arranged at a downstream end of the first cleaning agent storage member (313) and / or the second cleaning agent storage member (323). And / or, the booster pump (12) at least comprises a first voltage gear and a second voltage gear, and the booster pump (12) has a gear adjusting module used for adjusting the voltage gear of the booster pump (12) to the second voltage gear when the water purification device is in the cleaning mode, wherein the voltage value of the second voltage gear is lower than the voltage value of the first voltage gear.

6. The water purification apparatus according to claim 2, wherein 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 second cleaning module comprises a second cleaning pipe (321), a second cleaning valve (322) and a second cleaning agent storage member (323) arranged on the second cleaning pipe (321), and the cleaning assembly further comprises a third connecting pipe (36) and a first cleaning valve (312) arranged on the third connecting pipe (36), a first end of the third connecting pipe (36) is connected with a water inlet end of the second cleaning pipe (321) and communicated with the cleaning inlet (301) through the first connecting pipe (34), a second end of the third connecting pipe (36) is connected with a water outlet end of the second cleaning pipe (321) and communicated with a water inlet end of the first cleaning pipe (311), and a water outlet end of the first cleaning pipe (311) forms the cleaning outlet (302).

7. The water purification apparatus according to claim 6, characterized by The water purification device further comprises a circulating pump (6) arranged on the first cleaning pipe (311) or the first connecting pipe (34) and used for driving the liquid in the cleaning circuit to circulate and flow. Alternatively, the cleaning outlet (302) is communicated with the water inlet main circuit (1), and a booster pump (12) of the water purification device is located at a downstream end of the cleaning outlet (302), and the booster pump (12) can drive the liquid in the cleaning circuit to circulate and flow.

8. The water purification apparatus according to claim 7, characterized by The cleaning assembly further comprises a one-way valve arranged at a downstream end of the first cleaning agent storage member (313) and / or the second cleaning agent storage member (323). And / or, the booster pump (12) comprises at least a first voltage gear and a second voltage gear, 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 device is in the cleaning mode, wherein the voltage value of the second voltage gear is lower than the voltage value of the first voltage gear.

9. The water purification apparatus of claim 1, wherein The water purification device further comprises an auxiliary cleaning member arranged to facilitate the action of the cleaning liquid on the dirt on the reverse osmosis membrane filter core (2) so as to remove the dirt from the reverse osmosis membrane filter core (2); And / or, the water purification device further comprises a pre-filter unit (4), the water outlet end of the pre-filter unit (4) is in communication with the first end of the water inlet main path (1), and the cleaning outlet (302) of the cleaning assembly is located at the downstream end of the pre-filter unit (4); And / or, the water purification device further comprises a flow control member (7) for adjusting the water flow from the cleaning inlet (301) to the cleaning outlet (302); And / or, the water purification device further comprises a dirt collection member (8) for collecting the dirt in the cleaning circuit; And / or, the cleaning agent storage member is arranged to store the cleaning agent when it is in a first working state and to collect the dirt in the cleaning circuit when it is in a second working state; And / or, the water purification device further comprises a pure water outlet pipe (5) and a pure water water member (51), 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).

10. The water purification apparatus according to any one of claims 1 to 9, characterized by, The water purification device further comprises a backflow pipe (23) and a backflow valve (231), one end of the backflow pipe (23) is in communication with the pure water end of the reverse osmosis membrane filter core (2), the other end of the backflow pipe (23) is in communication with the water inlet main path (1), and the backflow valve (231) is arranged on the backflow pipe (23) and used to control the opening and closing of the backflow pipe (23); Or, the water purification device 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 outlet pipe (5), the other end of the drain pipe (22) is in communication 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).

Images