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 a booster pump is easy to break down after a reverse osmosis membrane filter element is cleaned by using a cleaning agent in the conventional water purification equipment. In order to achieve the purpose, the water purification equipment comprises a raw water inlet pipe, a booster pump, a reverse osmosis membrane filter element and a cleaning assembly, the raw water inlet pipe is communicated with the water inlet end of the reverse osmosis membrane filter element, the booster pump is arranged on the raw water inlet pipe, and a cleaning agent storage component is used for storing a cleaning agent; the cleaning assembly and the raw water inlet pipe are arranged in parallel so as to form a cleaning agent solution, the cleaning agent assembly can allow the cleaning agent solution to flow into the reverse osmosis membrane filter element through the cleaning outlet, and the cleaning outlet is located at the downstream end of the booster pump. According to the booster pump, the cleaning agent solution does not flow through the booster pump, so that the cleaning agent solution is prevented from damaging a diaphragm in the booster pump, the service life of the booster pump is prevented from being influenced, and the use experience of a user is greatly 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 purifier, net drinking integrated machine gradually becomes the necessary drinking water facilities 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 using the water purification equipment for a period of time, cleaning the reverse osmosis membrane filter element with cleaning agent can effectively remove the dirt adhered to the surface of the reverse osmosis membrane filter element, prolonging the service life of the reverse osmosis membrane filter element.

[0004] But the existing water purification equipment after cleaning the reverse osmosis membrane filter element, although the water production rate of the water purification equipment is improved, but it is easy to appear the problem of booster pump failure, and because the cost of booster pump is higher, replacing the booster pump will further increase the cost of water purification equipment, greatly affecting the user's experience. SUMMARY

[0005] The utility model aims at at least in a certain extent solves the above-mentioned technical problem, that is, at least in a certain extent solves the problem that the existing water purification equipment is prone to booster pump failure after cleaning the reverse osmosis membrane filter element with cleaning agent, resulting in poor user experience.

[0006] In the first aspect, the utility model provides a kind of water purification equipment, the water purification equipment includes raw water inlet pipe, booster pump, reverse osmosis membrane filter element and cleaning component, the raw water inlet pipe is communicated with the water inlet end of the reverse osmosis membrane filter element, the booster pump is set on the raw water inlet pipe, the cleaning component has cleaning inlet, cleaning outlet and cleaning agent storage component, the cleaning agent storage component is used to store cleaning agent, the cleaning component is set in parallel with the raw water inlet pipe so that the water in the raw water inlet pipe enters the cleaning agent storage component by the cleaning inlet to form cleaning agent solution, the cleaning agent component can allow cleaning agent solution to flow into the reverse osmosis membrane filter element by cleaning outlet, wherein, the cleaning outlet is located at the downstream end of the booster pump.

[0007] In the preferred technical scheme of the water purifying device, the cleaning assembly comprises a first cleaning pipe, a first cleaning valve and a first cleaning agent storage member arranged on the first cleaning pipe, two ends of the first cleaning pipe form the cleaning inlet and the cleaning outlet respectively, and the first cleaning agent storage member is arranged at a downstream end of the first cleaning valve and used for storing an acidic cleaning agent; or the cleaning assembly comprises a first cleaning pipe, a first cleaning valve and a first cleaning agent storage member arranged on the first cleaning pipe, a second cleaning pipe, and a second cleaning valve and a second cleaning agent storage member arranged on the second cleaning pipe, the first cleaning pipe and the second cleaning pipe are arranged in parallel and one end of the first cleaning pipe and the second cleaning pipe forms the cleaning inlet, the other end forms the cleaning outlet, the first cleaning agent storage member is arranged at a downstream end of the first cleaning valve and used for storing an acidic cleaning agent, and the second cleaning agent storage member is arranged at a downstream end of the second cleaning valve and used for storing an alkaline cleaning agent.

[0008] In the preferred technical scheme of the water purifying device, a one-way valve is arranged on the first cleaning pipe and / or the second cleaning pipe, the one-way valve is arranged at a downstream end of the first cleaning agent storage member and / or the second cleaning agent storage member, and the one-way valve can prevent water in the raw water inlet pipe from entering the first cleaning agent storage member and / or the second cleaning agent storage member through the cleaning outlet.

[0009] In the preferred technical scheme of the water purifying device, the water purifying device further comprises a water inlet valve arranged on the raw water inlet pipe, the cleaning inlet is arranged at an upstream end of the water inlet valve, and the cleaning outlet is arranged at a downstream end of the water inlet valve.

[0010] In the preferred technical scheme of the water purifying device, the booster pump is arranged at an upstream end of the water inlet valve, and the cleaning inlet is arranged between the booster pump and the water inlet valve.

[0011] In the preferred technical scheme of the water purifying device, the water purifying device further comprises a pre-filter unit, a water outlet end of the pre-filter unit is communicated with the raw water inlet pipe, and the cleaning inlet is arranged at a downstream end of the pre-filter unit.

[0012] In the preferred technical scheme of the water purifying device, the water purifying device further comprises a heating member, wherein the heating member is arranged on the first cleaning pipe and / or the second cleaning pipe and at an upstream end of the first cleaning agent storage member and / or the second cleaning agent storage member; or the heating member is arranged outside the first cleaning agent storage member and / or the second cleaning agent storage member.

[0013] In the preferred technical solution of the water purification device, the cleaning assembly further comprises a filtering member arranged between the first cleaning agent storage member and / or the second cleaning agent storage member and the reverse osmosis membrane filter core and capable of preventing solid cleaning agent in the first cleaning agent storage member and / or the second cleaning agent storage member from entering the reverse osmosis membrane filter core.

[0014] In the preferred technical solution of the water purification device, the water purification device further comprises a waste water outlet pipe and a waste water valve arranged on the waste water outlet pipe, the waste water outlet pipe being in communication with a waste water port of the reverse osmosis membrane filter core; or the water purification device further comprises a pure water outlet pipe and a pure water water-using member, a pure water end of the reverse osmosis membrane filter core being in communication with the pure water water-using member through the pure water outlet pipe.

[0015] In the preferred technical solution of the water purification device, the water purification device further comprises a drain pipe and a drain valve, one end of the drain pipe being in communication with the pure water outlet pipe, the other end of the drain pipe being in communication with the waste water outlet pipe, the drain valve being arranged on the drain pipe and used for controlling the opening and closing of the drain pipe; or the water purification device comprises a backflow pipe and a backflow valve, one end of the backflow pipe being in communication with the pure water outlet pipe, the other end of the backflow pipe being in communication with an upstream end of the booster pump, the backflow valve being arranged on the backflow pipe and used for controlling the opening and closing of the backflow pipe.

[0016] In the case of adopting the preferred technical solution, by arranging the cleaning assembly in parallel with the raw water inlet pipe, water in the raw water inlet pipe can enter the cleaning agent storage member through the cleaning inlet, so as to facilitate the formation of a cleaning agent solution, and by arranging the cleaning outlet at the downstream end of the booster pump, the cleaning agent solution can be directly delivered into the reverse osmosis membrane filter core through the cleaning outlet without flowing through the booster pump, so as to avoid damaging the diaphragm in the booster pump by the cleaning agent solution, thereby avoiding affecting the service life of the booster pump and greatly improving the user experience.

[0017] Further, by arranging the cleaning assembly to have the first cleaning agent storage member and the second cleaning agent storage member, both acidic cleaning agent and alkaline cleaning agent can be used to clean the reverse osmosis membrane filter core, so as to remove different types of dirt (such as inorganic dirt and organic dirt) on the reverse osmosis membrane filter core and improve the cleaning effect of the reverse osmosis membrane filter core.

[0018] Still further, by arranging the cleaning inlet at the downstream end of the pre-filtering unit, the purified water filtered by the pre-filtering unit can enter the cleaning agent storage member through the cleaning inlet, and the cleaning agent can be dissolved by the purified water, so as to improve the solubility of the cleaning agent and the cleanliness of the cleaning agent solution, thereby further improving the cleaning effect of the reverse osmosis membrane filter core.

[0019] Further, by setting the heating member, the temperature of the cleaning agent solution can be increased, on the one hand, the dissolution rate and solubility of the cleaning agent can be accelerated, the dissolution efficiency of the cleaning agent can be improved, and the concentration of the cleaning agent can be ensured, thereby greatly improving the cleaning efficiency, on the other hand, it is also helpful to remove the dirt attached to the reverse osmosis membrane filter core, and improve the cleaning effect.

[0020] Further, by setting the filtering member, the cleaning agent solution can be filtered, and the undissolved cleaning agent solids or agglomerated cleaning agent can be intercepted, thereby preventing the cleaning agent solids or agglomerated cleaning agent from entering the reverse osmosis membrane filter core and piercing the membrane sheet of the reverse osmosis membrane filter core, and further improving the cleaning effect.

[0021] Further, by setting the drain pipe, the pure water containing a small amount of cleaning agent that penetrates to the pure water end of the reverse osmosis membrane filter core during the cleaning process can be discharged into the wastewater outlet pipe, or by setting the reflux pipe, the pure water containing a small amount of cleaning agent that penetrates to the pure water end of the reverse osmosis membrane filter core during the cleaning process can be transported to the upstream end of the booster pump, thereby avoiding the flow of pure water containing cleaning agent into the pure water water member, and more thoroughly discharging the cleaning agent, thereby more helping to achieve zero addition and zero pollution during the regeneration of the reverse osmosis membrane filter core, and further improving the user's experience. 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 water purification equipment of the present application;

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

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

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

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

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

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

[0030] Figure 8 is a structural schematic view of an embodiment eight of the water purification equipment of the utility model;

[0031] Figure 9 is a structural schematic view of an embodiment nine of the water purification equipment of the utility model;

[0032] Figure 10 is a structural schematic view of an embodiment ten of the water purification equipment of the utility model.

[0033] List of reference signs:

[0034] 1, raw water inlet pipe; 11, water inlet valve; 12, booster pump; 2, reverse osmosis membrane filter core; 21, waste water outlet pipe; 211, waste water valve; 22, drain pipe; 221, drain valve; 23, backflow pipe; 231, backflow valve; 301, cleaning inlet; 302, cleaning outlet; 311, first cleaning pipe; 312, first cleaning valve; 313, first cleaning agent storage member; 314, first one-way valve; 321, second cleaning pipe; 322, second cleaning valve; 323, second cleaning agent storage member; 324, second one-way valve; 4, pre-filter unit; 5, pure water outlet pipe; 51, pure water water member; 52, water quality detection member; 6, heating member; 7, filtering member. DETAILED DESCRIPTION

[0035] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0036] It should be noted that in the description of the utility model, the terms "upper", "lower", "inner", "outer" and the like indicating the direction or positional relationship of the terms are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] Based on the problem that the booster pump is prone to failure after the existing water purification equipment mentioned in the background art uses the cleaning agent to clean the reverse osmosis membrane filter element, which seriously affects the user experience, the inventor has found through long-term research that when the reverse osmosis membrane filter element is cleaned, the cleaning agent will enter the booster pump, and since the cleaning agent is mostly acidic or alkaline cleaning agent, the acid or alkaline substance entering the booster pump will damage the diaphragm inside the booster pump, resulting in the problem of booster pump failure after the reverse osmosis membrane filter element is cleaned. Therefore, the present application provides a water purification equipment.

[0039] Specifically, please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic view of embodiment one of the water purification equipment of the present application, Figure 2 is a structural schematic view of embodiment two of the water purification equipment of the present application.

[0040] As shown in Figure 1 and Figure 2 , the water purification equipment of the present application comprises a raw water inlet pipe 1, a booster pump 12, a reverse osmosis membrane filter element 2 and a cleaning assembly. The raw water inlet pipe 1 is in communication with the water inlet end of the reverse osmosis membrane filter element 2, and the booster pump 12 is arranged on the raw water inlet pipe 1.

[0041] The cleaning assembly has a cleaning inlet 301, a cleaning outlet 302 and a cleaning agent storage member. The cleaning assembly is arranged in parallel with the raw water inlet pipe 1 so that the water in the raw water inlet pipe 1 enters the cleaning agent storage member through the cleaning inlet 301 to form a cleaning agent solution. The cleaning assembly can allow the cleaning agent solution to flow into the reverse osmosis membrane filter element 2 through the cleaning outlet 302, wherein the cleaning outlet 302 is located at the downstream end of the booster pump 12.

[0042] By such a setting, i.e. by arranging the cleaning assembly in parallel with the raw water inlet pipe 1, the water in the raw water inlet pipe 1 can enter the cleaning agent storage member through the cleaning inlet 301 to facilitate the formation of a cleaning agent solution. By arranging the cleaning outlet 302 at the downstream end of the booster pump 12, the cleaning agent solution can not flow through the booster pump 12, but be directly delivered to the reverse osmosis membrane filter element 2 through the cleaning outlet 302, thereby avoiding damage to the diaphragm inside the booster pump 12, further avoiding affecting the service life of the booster pump 12, and greatly improving the user experience.

[0043] It should be noted that in actual application, the present application does not make any limitation on the specific setting form of the cleaning assembly, as long as it can be arranged in parallel with the raw water inlet pipe 1 so that the raw water inlet pipe 1 enters the cleaning agent storage member to form a cleaning agent solution, and can allow the cleaning agent solution to flow into the reverse osmosis membrane filter element 2 to clean the reverse osmosis membrane filter element 2.

[0044] The following describes the cleaning assembly of the present application in combination with Figure 1 and Figure 2 two embodiments.

[0045] Embodiment 1:

[0046] As shown in FIG. 1, the cleaning assembly comprises a first cleaning pipe 311, a first cleaning valve 312 and a first cleaning agent storage member 313 arranged on the first cleaning pipe 311, both ends of the first cleaning pipe 311 form a cleaning inlet 301 and a cleaning outlet 302 respectively, and the first cleaning agent storage member 313 is located at the downstream end of the first cleaning valve 312 and is used to store acidic cleaning agent or alkaline cleaning agent. Figure 1 When the cleaning assembly cleans the reverse osmosis membrane filter core 2, the first cleaning valve 312 is opened, the water in the raw water inlet pipe 1 enters the first cleaning agent storage member 313 through the cleaning inlet 301 and dissolves the cleaning agent stored in the first cleaning agent storage member 313 to form a cleaning agent solution, the cleaning agent solution is then discharged through the cleaning outlet 302 and transported into the reverse osmosis membrane filter core 2, and then the reverse osmosis membrane filter core 2 is soaked with the cleaning agent solution to remove dirt on the reverse osmosis membrane filter core 2.

[0047] It should be noted that in actual application, the person skilled in the art can store cleaning agent in the first cleaning agent storage member 313 according to actual application needs, for example, acidic cleaning agent can be stored in the first cleaning agent storage member 313, or alkaline cleaning agent can also be stored in the first cleaning agent storage member 313, etc., and such adjustment and change of the type of cleaning agent in the first cleaning agent storage member 313 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0048] Embodiment 2:

[0049] As shown in FIG. 2, the cleaning assembly comprises a first cleaning pipe 311, a first cleaning valve 312 and a first cleaning agent storage member 313 arranged on the first cleaning pipe 311, a second cleaning pipe 321, and a second cleaning valve 322 and a second cleaning agent storage member 323 arranged on the second cleaning pipe 321, the first cleaning pipe 311 and the second cleaning pipe 321 are arranged in parallel and one end forms a cleaning inlet 301 and the other end forms a cleaning outlet 302, the first cleaning agent storage member 313 is located at the downstream end of the first cleaning valve 312 and is used to store acidic cleaning agent, and the second cleaning agent storage member 323 is located at the downstream end of the second cleaning valve 322 and is used to store alkaline cleaning agent.

[0050] Figure 2

[0051] ​​It should be noted that when cleaning the reverse osmosis membrane filter element 2, an acidic cleaning agent can be used first, followed by an alkaline cleaning agent. Alternatively, an alkaline cleaning agent can be used first, followed by an acidic cleaning agent, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of this utility model and should be included within the protection scope of this utility model.

[0052] The following example illustrates the cleaning process of reverse osmosis membrane filter element 2, which involves first cleaning it with an acidic cleaning agent and then with an alkaline cleaning agent.

[0053] like Figure 2 As shown, the first cleaning valve 312 is opened, allowing water from the raw water inlet pipe 1 to enter the first cleaning pipe 311, forming a first cleaning agent solution (i.e., an acidic solution) in the first cleaning agent storage component 313. This solution is then discharged through the cleaning outlet 302 and transported to the reverse osmosis membrane filter element 2. The reverse osmosis membrane filter element 2 is then soaked in the first cleaning agent solution to remove inorganic dirt from it. After soaking, the liquid in the reverse osmosis membrane filter element 2 is drained and rinsed. Then, the first cleaning valve 312 is closed and the second cleaning valve 322 is opened, allowing water from the raw water inlet pipe 1 to enter the second cleaning pipe 321, forming a second cleaning agent solution (i.e., an alkaline solution) in the second cleaning agent storage component 323. This solution is then discharged through the cleaning outlet 302 and transported to the reverse osmosis membrane filter element 2. The reverse osmosis membrane filter element 2 is then soaked in the second cleaning agent solution to remove organic dirt from it.

[0054] 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 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 solutions. Those skilled in the art can make adjustments according to actual needs.

[0055] Preferably, the acidic cleaning agent is malic acid or citric acid, which not only cleans dirt but also has a good disinfection and antibacterial effect, and can disinfect and inhibit bacteria in the reverse osmosis membrane filter element.

[0056] 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 substances, and those skilled in the art can make adjustments according to actual needs.

[0057] It should be noted that in actual application, the skilled in the art can set a check structure in the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323 to prevent the water in the raw water inlet pipe 1 from entering the first cleaning agent storage member and / or the second cleaning agent storage member 323 through the cleaning outlet 302, or a one-way valve can be set on the first cleaning pipe 311 and the second cleaning pipe 321 to prevent the water in the raw water inlet pipe 1 from entering the first cleaning agent storage member and / or the second cleaning agent storage member 323 through the cleaning outlet 302, or a control valve can be set on the first cleaning pipe 311 and the second cleaning pipe 321 to prevent the water in the raw water inlet pipe 1 from entering the first cleaning agent storage member and / or the second cleaning agent storage member 323 through the cleaning outlet 302, 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.

[0058] Preferably, as shown in Figure 1 and Figure 2 , a one-way valve is arranged on the first cleaning pipe 311 and / or the second cleaning pipe 321, and the one-way valve is located at the downstream end of the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323 and can prevent the water in the raw water inlet pipe 1 from entering the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323 through the cleaning outlet 302.

[0059] By setting the one-way valve, when the water purification equipment is in the normal water production mode, the water in the raw water inlet pipe 1 can be prevented from flowing backward into the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323, so that the cleaning agent is prevented from dissolving and entering the reverse osmosis membrane filter element 2 in the normal water production mode.

[0060] Specifically, as shown in Figure 1 and Figure 2 , a first one-way valve 314 is arranged on the first cleaning pipe 311, and a second one-way valve 324 is arranged on the second cleaning pipe 321.

[0061] It should be noted that although the present application is introduced above with the two kinds of embodiments as examples to introduce the specific form of the cleaning assembly, but this is not restrictive, for example, the cleaning assembly can also include a plurality of cleaning pipes and a plurality of cleaning agent storage members arranged on the cleaning pipes, and the like, and such adjustment and change of the specific setting form of the cleaning assembly do not deviate from the principles and scope of the present application and should be included in the protection scope of the present application.

[0062] It should be further explained that the present application does not make any limitation on the form of the cleaning agent in the first cleaning agent storage member 313 and the second cleaning agent storage member 323, for example, the cleaning agent in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 can all be set as solid, or the cleaning agent in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 can all be set as liquid cleaning agent, or one of the first cleaning agent storage member 313 and the second cleaning agent storage member 323 can be set as solid cleaning agent and the other can be set as liquid cleaning agent, and the like, and such adjustment and change of the specific form of the cleaning agent stored in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0063] Preferably, the cleaning agent stored in the first cleaning agent storage member 313 and the second cleaning agent storage member 323 is solid.

[0064] Further preferably, in order to accelerate the dissolution of the cleaning agent, the cleaning agent is in the form of granules or powder.

[0065] Preferably, as shown in Figure 1 and Figure 2 The water purification device further comprises a water inlet valve 11 arranged on the raw water inlet pipe 1, the cleaning inlet 301 is located at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is located at the downstream end of the water inlet valve 11.

[0066] Through such arrangement, when the reverse osmosis membrane filter core 2 needs to be cleaned, the water in the raw water inlet pipe 1 can be prevented from directly entering the reverse osmosis membrane filter core 2 by operating the water inlet valve 11, so as to avoid diluting the cleaning agent solution entering the reverse osmosis membrane filter core 2.

[0067] It should be noted that in actual application, the cleaning inlet 301 is not limited to being arranged at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is not limited to being arranged at the downstream end of the water inlet valve 11, for example, the cleaning inlet 301 and the cleaning outlet 302 can both be arranged at the upstream end of the water inlet valve 11, or the cleaning inlet 301 and the cleaning outlet 302 can both be arranged at the downstream end of the water inlet valve 11, and the like, and such adjustment and change of the relative position of the cleaning assembly and the water inlet valve 11 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 cleaning inlet 301 is arranged at the upstream end of the water inlet valve 11, and the cleaning outlet 302 is arranged at the downstream end of the water inlet valve 11.

[0068] It should be noted that in actual application, the booster pump 12 can be arranged at the upstream end of the water inlet valve 11, or the booster pump 12 can be arranged at the downstream end of the water inlet valve 11, and the like, and the adjustment and change of the specific arrangement position of the booster pump 12 and the water inlet valve 11 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0069] Preferably, as shown in Figure 1 and Figure 2 , the booster pump 12 is located at the upstream end of the water inlet valve 11, and the cleaning inlet 301 is located between the booster pump 12 and the water inlet valve 11.

[0070] By arranging the booster pump 12 at the upstream end of the water inlet valve 11 and arranging the cleaning inlet 301 between the booster pump 12 and the water inlet valve 11, the cleaning inlet 301 can be located at the downstream end of the booster pump 12, so that the water in the raw water inlet pipe 1 can be pumped into the cleaning assembly and delivered into the reverse osmosis membrane filter core 2 through the booster pump 12, thereby improving the cleaning efficiency and cleaning effect.

[0071] Preferably, as shown in Figure 1 and Figure 2 , the water purification equipment of the present application further comprises a pre-filter unit 4, the water outlet end of the pre-filter unit 4 is communicated with the raw water inlet pipe 1, and the cleaning inlet 301 is located at the downstream end of the pre-filter unit 4.

[0072] By such arrangement, that is, by arranging the cleaning inlet 301 at the downstream end of the pre-filter core, the purified water filtered by the pre-filter unit 4 can enter the cleaning agent storage member through the cleaning inlet 301, and the cleaning agent can be dissolved by the purified water filtered by the pre-filter unit 4, thereby improving the solubility of the cleaning agent and the cleanliness of the cleaning agent solution, so that the cleaning effect of the reverse osmosis membrane filter core 2 can be effectively improved.

[0073] It should be noted that in actual application, the pre-filter unit 4 can be arranged as a pre-filter core, or the pre-filter unit 4 can be arranged as a composite filter core including a pre-filter core and a post-filter core, and the like, and the adjustment and change of the specific type of the pre-filter unit 4 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0074] Preferably, the pre-filter unit 4 is a pre-filter core.

[0075] Next, refer to Figure 3 to Figure 6 , Figure 3 is a structure schematic view of the water purification equipment of the present application, and Figure 4 is a structure schematic view of the water purification equipment of the present application,Figure 5 is a structural schematic view of the embodiment five of the water purification equipment of the utility model; Figure 6 is a structural schematic view of the embodiment six of the water purification equipment of the utility model.

[0076] Preferably, as shown in Figure 3 to Figure 6 , the water purification equipment further comprises a heating member 6, and the heating member 6 is used to improve the temperature of the cleaning agent solution.

[0077] By setting the heating member 6, the temperature of the cleaning agent solution can be improved, on the one hand, the dissolution speed and the solubility of the cleaning agent can be accelerated, the dissolution efficiency of the cleaning agent is improved, and the concentration of the cleaning agent is ensured, so that the cleaning efficiency is greatly improved, on the other hand, it is also more helpful to remove the dirt attached to the reverse osmosis membrane filter core 2, and the cleaning effect is improved.

[0078] It should be noted that in actual application, the specific setting position of the heating member 6 is not limited by the utility model, as long as the temperature of the cleaning agent solution can be improved, the adjustment and change of the specific setting position of the heating member 6 do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0079] The following will be described in detail. Figure 3 to Figure 6

[0080] In one specific embodiment, as shown in Figure 3 and Figure 5 , the heating member 6 is arranged on the first cleaning pipe 311 and / or the second cleaning pipe 321 and located at the upstream end of the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323, and the heating member 6 is arranged to heat the water flowing into the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323.

[0081] It should be noted that the heating member 6 can be arranged only on the first cleaning pipe 311, or the heating member 6 can be arranged only on the second cleaning pipe 321, or the heating member 6 can be arranged on the first cleaning pipe 311 and the second cleaning pipe 321 at the same time, and so on, and such 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. Of course, preferably, the heating member 6 is arranged on the first cleaning pipe 311 and the second cleaning pipe 321 at the same time.

[0082] In another possible embodiment, as shown in Figure 4 and Figure 6 , the heating member 6 is arranged outside the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323, and the heating member 6 is used to heat the solution in the cleaning agent storage member. ​

[0083] It should be noted that the heating member 6 can be arranged only outside the first cleaning agent storage member 313, or can be arranged outside the second cleaning agent storage member 323, or can be arranged outside both the first cleaning agent storage member 313 and the second cleaning agent storage member 323, 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 heating member 6 is arranged outside both the first cleaning agent storage member 313 and the second cleaning agent storage member 323.

[0084] The inventors found in research that due to the slow dissolution rate of some cleaning agents, when the cleaning agent solution is delivered into the reverse osmosis membrane filter core 2, there are still some undissolved cleaning agents, and some cleaning agents may crystallize, agglomerate and the like, and the undissolved cleaning agents or agglomerated cleaning agents entering the reverse osmosis membrane filter core 2 are easy to pierce the membrane sheet of the reverse osmosis membrane filter core 2, resulting in that the reverse osmosis membrane filter core 2 cannot be used normally, or the undissolved cleaning agents are difficult to be discharged and remain in the reverse osmosis membrane filter core 2, resulting in that the reverse osmosis membrane filter core has cleaning agent residues in the normal use process, therefore, the undissolved cleaning agents or agglomerated cleaning agents need to be filtered before the cleaning agent solution is delivered into the reverse osmosis membrane filter core 2.

[0085] Next, referring to Figure 7 and Figure 8 , Figure 7 is a structural schematic view of an embodiment seven of the water purification equipment of the present application, Figure 8 is a structural schematic view of an embodiment eight of the water purification equipment of the present application.

[0086] Preferably, as shown in Figure 7 and Figure 8 , the cleaning assembly of the present application further comprises a filtering member 7, which is arranged between the first cleaning agent storage member 313 and / or the second cleaning agent storage member 323 and the reverse osmosis membrane filter core 2 and can prevent the solid cleaning agents in the cleaning agent storage member from entering the reverse osmosis membrane filter core 2.

[0087] By arranging the filtering member 7, the cleaning agent solution can be filtered, and the undissolved cleaning agent solids or agglomerated cleaning agents are intercepted, so as to prevent the cleaning agent solids or agglomerated cleaning agents from entering the reverse osmosis membrane filter core 2 to pierce the membrane sheet of the reverse osmosis membrane filter core 2, and further improve the cleaning effect.

[0088] It should be noted that in practical applications, the filter element 7 can be provided only between the first cleaning agent storage component 313 and the reverse osmosis membrane filter element 2, or the filter element 7 can be provided between the second cleaning agent storage component 323 and the reverse osmosis membrane filter element 2, or the filter element 7 can be provided simultaneously between the first cleaning agent storage component 313 and the reverse osmosis membrane filter element 2 and between the second cleaning agent storage component 323 and the reverse osmosis membrane filter element 2. Those skilled in the art can make adjustments according to the actual situation. 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.

[0089] It should also be noted that, in practical applications, those skilled in the art can set the filter component 7 as a flexible filter screen, or as a filter screen plate, etc. Such adjustments and changes to the specific setting type of the filter component 7 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.

[0090] Preferably, the filter element 7 is a flexible filter screen.

[0091] Preferably, such as Figure 1 to Figure 8 As shown, the water purification equipment of this utility model also includes a wastewater outlet pipe 21 and a wastewater valve 211 installed on the wastewater outlet pipe 21. The wastewater outlet pipe 21 is connected to the wastewater outlet of the reverse osmosis membrane filter element 2.

[0092] By setting up a wastewater outlet pipe 21, on the one hand, during normal water production, the wastewater produced by the reverse osmosis membrane filter element 2 flows out through the wastewater outlet pipe 21; on the other hand, when the reverse osmosis membrane filter element 2 is cleaned, the cleaning wastewater can also flow out through the wastewater outlet pipe 21. The cleaning wastewater in the reverse osmosis membrane filter element 2 can be discharged without adding additional drainage components to the water purification equipment, thus reducing the cost of the water purification equipment.

[0093] Preferably, the water purification equipment further includes an impurity collection component (not shown in the figure) installed on the wastewater outlet pipe 21. The impurity collection component is located upstream of the wastewater valve 211 and is used to collect dirt inside the wastewater outlet pipe 21.

[0094] With this setup, after the cleaning solution has finished cleaning the reverse osmosis membrane filter element, the dirt removed is discharged from the wastewater outlet pipe 21 along with the cleaning solution. The impurity collection component can collect the dirt in the wastewater outlet pipe, preventing the dirt from clogging the wastewater valve 211 and extending the service life of the wastewater valve 211.

[0095] It should be noted that in actual application, the specific setting type of the impurity collecting member is not limited in the utility model, as long as it can collect the dirt in the wastewater outlet pipe 21. For example, the impurity collecting member can be set as a box body and a filter screen arranged in the box body, the filter screen intercepts the dirt in the cleaning liquid and collects it into the box body, or the impurity collecting member can be set as a filter screen pocket installed in the wastewater outlet pipe, and the like, the adjustment and change of the specific setting type of the impurity collecting member 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 impurity collecting member is set as a box body and a filter screen (not shown in the figure) arranged in the box body, the box body has a collecting cavity, and the filter screen is used to intercept the dirt in the cleaning liquid and collect it into the collecting cavity.

[0097] Preferably, a dirt outlet and a door are further arranged on the box body, the dirt outlet is communicated with the collecting cavity, and the door is arranged at the dirt outlet and used to open or close the dirt outlet.

[0098] Through such a setting, the door is convenient to open and the dirt in the collecting cavity is convenient to clean out, bacteria breeding by the dirt is avoided, and the use experience of the user is further improved.

[0099] Preferably, as shown in Figure 1 to Figure 8 The water purification equipment further includes 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 communicated with the pure water water member 51 through the pure water outlet pipe 5.

[0100] It should be noted that in actual application, the person skilled in the art can directly set the pure water water member 51 as a water outlet member (such as a faucet or a water outlet nozzle), the pure water after filtration flows out from the faucet or the water outlet nozzle for the user to use, or the pure water water member 51 can be set as a post-filter core, the pure water after filtration flows into the post-filter core to improve the taste for the user to use, or the pure water water member 51 can be set as a pure water tank, the pure water after filtration by the reverse osmosis membrane filter core 2 flows into the pure water tank for storage for the user to use, and the like, the adjustment and change of the specific setting type of the pure water water member 51 do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0101] Preferably, the pure water water member 51 is a post-filter core.

[0102] 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 in the "first cup of water" at the pure water end of the reverse osmosis membrane filter element 2. In order to achieve zero addition and zero pollution in the regeneration process of the reverse osmosis membrane filter element 2, the pure water containing a small amount of cleaning agent in the "first cup of water" needs to be discharged before it is used by the user.

[0103] The following is combined Figure 9 and Figure 10 The following two scenarios will be used to illustrate this.

[0104] Scenario 1:

[0105] like Figure 9 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.

[0106] 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 a small amount of detergent from the pure water end of the reverse osmosis membrane filter element 2 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 for a more thorough discharge of the detergent, which in turn helps to achieve zero addition and zero pollution during the regeneration process of the reverse osmosis membrane filter element 2.

[0107] Scenario 2:

[0108] like Figure 10 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.

[0109] With this setup, on the one hand, after cleaning the reverse osmosis membrane filter 2, the pure water containing a small amount of detergent at 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 to allow the detergent to be discharged. 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.

[0110] It needs to be explained that although a small amount of cleaning agent will penetrate to the pure water end of the reverse osmosis membrane filter element 2 during the cleaning process of the reverse osmosis membrane filter element 2, the amount of cleaning agent is small and the concentration is extremely low, which will not affect the diaphragm of the booster pump 12, therefore, the pure water containing a small amount of cleaning agent in the pure water end of the reverse osmosis membrane filter element 2 will not corrode the diaphragm of the booster pump 12 in the process of being returned to the upstream end of the booster pump 12 through the return pipe 23 and then being delivered to the water inlet end of the reverse osmosis membrane filter element 2 through the booster pump 12.

[0111] It also needs to be explained that although the utility model is introduced in the above two cases, this is not restrictive, for example, the other end of the drain pipe can be directly communicated with the sewer pipe or the wastewater outlet of the water purification equipment, and the pure water containing cleaning agent can be directly discharged to the sewer pipe or the wastewater outlet of the water purification equipment.

[0112] Preferably, as shown in Figure 9 and Figure 10 The water purification equipment of the utility model further comprises a water quality detection member 52, wherein the water quality detection member 52 is used for detecting the water quality information of the pure water end of the reverse osmosis membrane filter element 2.

[0113] By arranging the water quality detection member 52, the water quality information of the pure water end of the reverse osmosis membrane filter element 2 can be monitored in real time, when it is detected that the water quality of the pure water end of the reverse osmosis membrane filter element 2 meets the standard, the pure water end of the reverse osmosis membrane filter element 2 is communicated with the pure water water member 51 in time, so that whether the cleaning agent in the pure water end of the reverse osmosis membrane filter element 2 has been completely discharged can be accurately judged, and the water can be more saved and the service life of the reverse osmosis membrane filter element 2 can be prolonged.

[0114] It needs to be explained that the utility model does not limit the specific arrangement position of the water quality detection member 52, for example, the water quality detection member 52 can be arranged on the pure water outlet pipe 5, or the water quality detection member 52 can be arranged on the drain pipe 22 or the return pipe 23, etc., the adjustment and change of the specific arrangement position of the water quality detection member 52 do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0115] Preferably, the water quality detection member 52 is arranged on the pure water outlet pipe 5.

[0116] It needs to be explained that in actual application, the water quality detection member 52 can be arranged as a TDS sensor, or the water quality detection member 52 can be arranged as a PH value sensor, or the water quality detection member 52 can be arranged in any other possible form, etc., the adjustment and change of the specific arrangement type of the water quality detection member 52 do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0117] Exemplarily, the water quality detection member 52 is a TDS sensor.

[0118] Thus far, the technical scheme of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is readily understood by those skilled in the art that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical schemes after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A water purification apparatus characterized by comprising: The water purification device comprises a raw water inlet pipe, a booster pump, a reverse osmosis membrane filter core and a cleaning assembly, the raw water inlet pipe is communicated with a water inlet end of the reverse osmosis membrane filter core, the booster pump is arranged on the raw water inlet pipe, The cleaning assembly has a cleaning inlet, a cleaning outlet and a cleaning agent storage member for storing a cleaning agent, the cleaning assembly is arranged in parallel with the raw water inlet pipe so that water in the raw water inlet pipe enters the cleaning agent storage member through the cleaning inlet to form a cleaning agent solution, the cleaning assembly can allow the cleaning agent solution to flow into the reverse osmosis membrane filter core through the cleaning outlet, The cleaning outlet is located at a downstream end of the booster pump.

2. The water purification apparatus according to claim 1, characterized by The cleaning assembly comprises a first cleaning pipe, a first cleaning valve and a first cleaning agent storage member arranged on the first cleaning pipe, two ends of the first cleaning pipe form the cleaning inlet and the cleaning outlet respectively, the first cleaning agent storage member is located at a downstream end of the first cleaning valve and is used for storing an acidic cleaning agent or an alkaline cleaning agent. Alternatively, the cleaning assembly comprises a first cleaning pipe, a first cleaning valve and a first cleaning agent storage member arranged on the first cleaning pipe, a second cleaning pipe and a second cleaning valve and a second cleaning agent storage member arranged on the second cleaning pipe, the first cleaning pipe and the second cleaning pipe are arranged in parallel and one end of the first cleaning pipe and the second cleaning pipe forms the cleaning inlet and the other end forms the cleaning outlet, the first cleaning agent storage member is located at a downstream end of the first cleaning valve and is used for storing an acidic cleaning agent, and the second cleaning agent storage member is located at a downstream end of the second cleaning valve and is used for storing an alkaline cleaning agent.

3. The water purification apparatus according to claim 2, characterized by A one-way valve is arranged on the first cleaning pipe and / or the second cleaning pipe, the one-way valve is located at a downstream end of the first cleaning agent storage member and / or the second cleaning agent storage member and can prevent water in the raw water inlet pipe from entering the first cleaning agent storage member and / or the second cleaning agent storage member through the cleaning outlet.

4. The water purification apparatus according to claim 1, characterized by The water purification device further comprises a water inlet valve arranged on the raw water inlet pipe, the cleaning inlet is located at an upstream end of the water inlet valve, and the cleaning outlet is located at a downstream end of the water inlet valve.

5. The water purification apparatus according to claim 4, characterized by The booster pump is located at an upstream end of the water inlet valve, and the cleaning inlet is located between the booster pump and the water inlet valve.

6. The water purification apparatus according to claim 1, characterized by The water purification device further comprises a pre-filter unit, a water outlet end of the pre-filter unit is communicated with the raw water inlet pipe, and the cleaning inlet is located at a downstream end of the pre-filter unit.

7. The water purification apparatus according to claim 2, characterized by The water purification device further comprises a heating member, The heating member is arranged on the first cleaning pipe and / or the second cleaning pipe and located at an upstream end of the first cleaning agent storage member and / or the second cleaning agent storage member. Alternatively, the heating member is arranged outside the first cleaning agent storage member and / or the second cleaning agent storage member.

8. The water purification apparatus according to claim 2, characterized by The cleaning assembly further comprises a filter member arranged between the first and / or second cleaning agent storage member and the reverse osmosis membrane cartridge and capable of preventing solid cleaning agent in the first and / or second cleaning agent storage member from entering the reverse osmosis membrane cartridge.

9. The water purification apparatus of claim 1, wherein The water purification device further comprises a waste water outlet pipe and a waste water valve arranged on the waste water outlet pipe, the waste water outlet pipe being in communication with a waste water port of the reverse osmosis membrane cartridge; Alternatively, the water purification device further comprises a pure water outlet pipe and a pure water water-using member, a pure water end of the reverse osmosis membrane cartridge being in communication with the pure water water-using member through the pure water outlet pipe.

10. The water purification apparatus according to claim 9, characterized by The water purification device further comprises a drain pipe and a drain valve, one end of the drain pipe being in communication with the pure water outlet pipe, the other end of the drain pipe being in communication with the waste water outlet pipe, the drain valve being arranged on the drain pipe and used for controlling the on-off of the drain pipe. Alternatively, the water purification device comprises a backflow pipe and a backflow valve, one end of the backflow pipe being in communication with the pure water outlet pipe, the other end of the backflow pipe being in communication with an upstream end of the booster pump, the backflow valve being arranged on the backflow pipe and used for controlling the on-off of the backflow pipe.

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