Water purification system

Abstract

The utility model discloses a water purification system, and relates to the technical field of water purification, the water purification system comprises: a water storage assembly; an inlet of the first filtering assembly can be connected and disconnected with an outlet of the water storage assembly; an outlet of the booster pump can be connected and disconnected with the water storage assembly; two ends of the water return path are respectively communicated with a purified water outlet of the first filtering assembly and an inlet of the water storage assembly; the two ends of the first water path communicate with an outlet of the water storage assembly and an inlet of the booster pump correspondingly; the two ends of the second water path are communicated with an inlet of the first filtering assembly and an outlet of the booster pump respectively. When the booster pump is located at the upstream of the water storage assembly, purified water can be stored in the water storage assembly, and raw water in the first filtering assembly is replaced with the purified water.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, especially a water purification system. BACKGROUND

[0002] In the field of water purification systems, the filter assembly is one of the core components, which is used to remove impurities, pollutants and the like in water to improve water quality. However, it is found in actual use that when the filter assembly is not used for a long time, the TDS (total dissolved solids) of the first cup of water output by the filter assembly will often increase significantly. This phenomenon leads to the fact that when the user obtains the first cup of purified water, the water quality of the water obtained initially is poor, which cannot meet the direct drinking or high-precision water demand.

[0003] To solve this problem, the prior art adopts a method of replacing raw water in the filter assembly with purified water. Through this replacement, the TDS value of the first cup of water after a long period of non-use can be effectively reduced, and the water quality can be significantly improved. In the process of realizing that the water purification system stores the purified water purified by the filter assembly itself and uses the stored purified water to flush the filter assembly, the booster pump is usually arranged between the outlet of the water storage assembly and the inlet of the filter assembly. This position layout can meet the water purification circulation and flushing function requirements based on the existing structure to some extent.

[0004] However, with the continuous development of water purification systems and the emergence of diversified design requirements, the position of the booster pump may change for various reasons, such as adapting to new system layout, improving overall performance or reducing cost, etc. When the position of the booster pump changes, the original structure design cannot effectively realize the function of storing the purified water purified by the filter assembly itself and flushing the filter assembly. Therefore, it is urgent to develop a new structure design to ensure that the water purification system can still efficiently and stably complete the above-mentioned key functions in the case of changing the position of the booster pump, thereby improving the reliability, adaptability and user experience of the water purification system, meeting the growing market demand and technical development requirements. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the utility model is to provide a water purification system which can store purified water in the water storage assembly and replace raw water in the first filter assembly with the part of the purified water when the booster pump is located upstream of the water storage assembly.

[0006] The specific technical scheme of the embodiments of the utility model is as follows:

[0007] A water purification system, the water purification system comprising:

[0008] a water storage assembly;

[0009] a first filter assembly, an inlet of the first filter assembly being able to be connected and disconnected with an outlet of the water storage assembly;

[0010] a booster pump, an outlet of the booster pump being able to be connected and disconnected with the water storage assembly;

[0011] a backwater channel, two ends of the backwater channel being respectively connected with a clean water outlet of the first filter assembly and an inlet of the water storage assembly;

[0012] a first water channel, two ends of the first water channel being respectively connected with the outlet of the water storage assembly and an inlet of the booster pump;

[0013] a second water channel, two ends of the second water channel being respectively connected with the inlet of the first filter assembly and the outlet of the booster pump.

[0014] Preferably, the water purification system has a first state, in which the outlet of the booster pump is in a disconnected state with the water storage assembly, the inlet of the first filter assembly is in a disconnected state with the outlet of the water storage assembly, and the booster pump is in an open state.

[0015] Preferably, the water purification system has a second state, in which the outlet of the booster pump is in a connected state with the water storage assembly, and the inlet of the first filter assembly is in a connected state with the outlet of the water storage assembly.

[0016] Preferably, the second water channel is able to be connected and disconnected, and in the second state, the second water channel is in a disconnected state.

[0017] Preferably, the first water channel is able to be connected and disconnected, and in the second state, the first water channel is in a disconnected state.

[0018] Preferably, a first one-way assembly is arranged on the first water channel, and the first one-way assembly is able to guide the outlet of the water storage assembly to be conducted to the inlet of the booster pump.

[0019] Preferably, a first on-off valve is arranged between the outlet of the booster pump and the water storage assembly.

[0020] Preferably, a second on-off valve is arranged between the inlet of the first filter assembly and the outlet of the water storage assembly.

[0021] Preferably, a second one-way assembly is arranged on the backwater channel, and the second one-way assembly is able to guide the clean water outlet of the first filter assembly to be conducted to the inlet of the water storage assembly.

[0022] Preferably, the water purification system further comprises: a third water path, one end of the third water path being in communication with the wastewater outlet of the first filter assembly, the other end of the third water path being in communication with the inlet of the booster pump or the first water path or the second water path.

[0023] Preferably, the water purification system further comprises:

[0024] a wastewater discharge water path in communication with the wastewater outlet of the first filter assembly, the wastewater discharge water path being provided with a function valve having a wastewater ratio function and an on-off function;

[0025] In the first state, the function valve is in a wastewater ratio function state or a disconnected state;

[0026] In the second state, the function valve is in a wastewater ratio function state or a disconnected state or a connected state.

[0027] Preferably, the water purification system further comprises:

[0028] a water inlet valve in communication with the inlet of the booster pump;

[0029] In the first state, when the function valve is in a wastewater ratio function state, the water inlet valve is in an open state; when the function valve is in a disconnected state, the water inlet valve is in an open state or a disconnected state;

[0030] In the second state, when the function valve is in a wastewater ratio function state, the water inlet valve is in an open state; when the function valve is in a disconnected state, the water inlet valve is in an open state or a disconnected state; when the function valve is in a connected state, the water inlet valve is in an open state.

[0031] Preferably, the water storage assembly comprises a second filter assembly.

[0032] Preferably, the first filter assembly comprises at least one of the following: a reverse osmosis filter assembly, a nanofiltration membrane filter assembly, an ultrafiltration membrane filter assembly.

[0033] Preferably, the third water path is provided with a third one-way assembly, the third one-way assembly being capable of allowing the wastewater outlet of the first filter assembly to be in communication with the inlet of the booster pump or the first water path or the second water path.

[0034] Preferably, the third water path is provided with a small hole structure.

[0035] Preferably, the first water path is provided with a third on-off valve, in the first state, the third on-off valve is in an open state;

[0036] In the second state, the third on-off valve is in a disconnected state.

[0037] Preferably, a fourth on-off valve is arranged on the second water path, in the first state, the fourth on-off valve is in an open state; in the second state, the fourth on-off valve is in a closed state.

[0038] Preferably, a fifth on-off valve is arranged on the third water path, in the first state, the fifth on-off valve is in an open state; in the second state, the fifth on-off valve is in an open state.

[0039] Preferably, the water purification system further comprises:

[0040] a water inlet valve in communication with the inlet of the booster pump;

[0041] in the second state, the booster pump is in an open state, and / or the water inlet valve is in an open state.

[0042] A water purification system, comprising:

[0043] a first filter assembly;

[0044] a booster pump, an outlet of the booster pump being in on-off communication with an inlet of the first filter assembly;

[0045] a backwater path, two ends of the backwater path being in communication with a purified water outlet of the first filter assembly and an inlet of the booster pump, respectively;

[0046] a water storage assembly, the water storage assembly being arranged on the backwater path,

[0047] a first water path, two ends of the first water path being in communication with the water storage assembly and an inlet of the first filter assembly, respectively;

[0048] a second water path, two ends of the first water path being in communication with the water storage assembly and an outlet of the booster pump, respectively.

[0049] Preferably, the water purification system has a first state, in the first state, the outlet of the booster pump is in communication with the inlet of the first filter assembly, the second water path is in a closed state, and the booster pump is in an open state.

[0050] Preferably, the water purification system has a second state, in the second state, the outlet of the booster pump is in a closed state with the inlet of the first filter assembly, and the second water path is in a communication state.

[0051] Preferably, a second one-way assembly is arranged on the backwater path between the water storage assembly and the purified water outlet of the first filter assembly, the second one-way assembly can conduct the purified water outlet of the first filter assembly to the water storage assembly.

[0052] Preferably, in the second state, when the booster pump is in an open state, the inlet of the booster pump is in a disconnected state with the backwater waterway of the water storage assembly.

[0053] The technical scheme of the utility model has the following remarkable beneficial effects:

[0054] When the water purification system purifies and outputs the raw water input to the booster pump, the water storage assembly will be filled with raw water; then, when the raw water in the water storage assembly needs to be filtered into purified water, the booster pump is opened, the inlet of the first filter assembly is disconnected with the outlet of the water storage assembly, the outlet of the booster pump is disconnected with the water storage assembly, under the action of the booster pump, the raw water in the water storage assembly sequentially passes through the first waterway, the booster pump, the second waterway and enters the first filter assembly for filtration to form purified water, and the purified water is output from the purified water outlet of the first filter assembly and flows into the water storage assembly through the backwater waterway. The above process is continuously circulated until the water in the water storage assembly is basically converted into purified water. Then, the inlet of the first filter assembly is communicated with the outlet of the water storage assembly, and the outlet of the booster pump is communicated with the water storage assembly, so that the purified water in the water storage assembly can be input into the first filter assembly by using the pressure of the booster pump or the pressure of the water source, thereby replacing the raw water in the first filter assembly with purified water. In this way, when the water purification system is not used for a long time and then used to output the first cup of purified water, the TDS of the first cup of purified water can be greatly reduced, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0055] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative and are used to help understand the present disclosure, and are not specific limitations on the shapes and scale sizes of the components of the present disclosure. Those skilled in the art can select various possible shapes and scale sizes to implement the present disclosure according to specific circumstances under the guidance of the present disclosure.

[0056] Figure 1 The structure schematic view of the water purification system in the first embodiment of the utility model embodiment;

[0057] Figure 2 The structure schematic view of the water purification system in the second embodiment of the utility model embodiment;

[0058] Figure 3 The structure schematic view of the water purification system in the third embodiment of the utility model embodiment;

[0059] Figure 4 The structure schematic view of the water purification system in the fourth embodiment of the utility model embodiment;

[0060] Figure 5 This is a schematic diagram of the water purification system in the fifth embodiment of this utility model;

[0061] Figure 6 This is a schematic diagram of the water purification system in the sixth embodiment of this utility model.

[0062] The reference numerals in the above figures are as follows:

[0063] 1. Water storage assembly; 2. First filter assembly; 3. Booster pump; 4. Return water circuit; 5. First water circuit; 51. Third on / off valve; 52. First one-way assembly; 6. Second water circuit; 61. Fourth on / off valve; 7. First on / off valve; 8. Second on / off valve; 9. Second one-way assembly; 10. Third water circuit; 101. Third one-way assembly; 102. Small hole structure; 103. Fifth on / off valve; 11. Wastewater discharge circuit; 111. Functional valve; 12. Inlet valve; 13. Sixth on / off valve; 14. Third filter assembly. Detailed Implementation

[0064] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0065] In order to enable the storage of purified water in the water storage component and the replacement of the raw water in the first filtration component with this purified water when the booster pump is located upstream of the water storage component, a water purification system is proposed in this application. Figure 1 This is a schematic diagram of the water purification system in the first embodiment of the present invention, as shown below. Figure 1 As shown, the water purification system may include: a water storage component 1; a first filter component 2, the inlet of which can be switched on and off with the outlet of the water storage component 1; a booster pump 3, the outlet of which can be switched on and off with the water storage component 1; a return water path 4, the two ends of which are respectively connected to the purified water outlet of the first filter component 2 and the inlet of the water storage component 1; a first water path 5, the two ends of which are respectively connected to the outlet of the water storage component 1 and the inlet of the booster pump 3; and a second water path 6, the two ends of which are respectively connected to the inlet of the first filter component 2 and the outlet of the booster pump 3.

[0066] When the water purification system purifies the raw water input to the booster pump 3 and outputs, the raw water will be filled in the water storage assembly 1. Then, when the raw water in the water storage assembly 1 needs to be filtered into purified water, the booster pump 3 is turned on, the inlet of the first filter assembly 2 is disconnected from the outlet of the water storage assembly 1, and the outlet of the booster pump 3 is disconnected from the water storage assembly 1. Under the action of the booster pump 3, the raw water in the water storage assembly 1 passes through the first water path 5, the booster pump 3, and the second water path 6 in turn and enters the first filter assembly 2 to be filtered, thereby forming purified water. The purified water is output from the purified water outlet of the first filter assembly 2 and flows into the water storage assembly 1 through the backwater path 4. The above process is continuously repeated until the water in the water storage assembly 1 is basically converted into purified water. Then, the inlet of the first filter assembly 2 is connected to the outlet of the water storage assembly 1, and the outlet of the booster pump 3 is connected to the water storage assembly 1. The purified water in the water storage assembly 1 can be input into the first filter assembly 2 by using the pressure of the booster pump 3 or the pressure of the water source, thereby replacing the raw water in the first filter assembly 2 with purified water. In this way, when the water purification system is not used for a long time and then used again, the TDS of the first cup of purified water output can be greatly reduced, thereby improving the user experience.

[0067] As shown in Figure 1 , the water storage assembly 1 can be any component capable of storing a certain amount of water. As a possibility, the water stored in the water storage assembly 1 is as large as possible and is greater than or equal to the volume of the raw water side of the filter membrane of the first filter assembly 2, thereby ensuring that the raw water on the raw water side of the filter membrane of the first filter assembly 2 can be completely replaced with purified water.

[0068] In a possible implementation, the water storage assembly 1 can include a second filter assembly. The second filter assembly can be a pre-filter assembly. The pre-filter assembly can be any type of pre-filter assembly, which can be a single filter cartridge or a pre-filter assembly with a composite filter cartridge. In this application, the specific type of pre-filter assembly is not limited.

[0069] As shown in Figure 1 , the inlet of the first filter assembly 2 can be connected and disconnected with the outlet of the water storage assembly 1. As a possibility, a second on-off valve 8 is provided between the inlet of the first filter assembly 2 and the outlet of the water storage assembly 1, thereby realizing connection and disconnection. The first filter assembly 2 can be any filter assembly that needs to discharge waste water during filtration. For example, the first filter assembly 2 can include at least one of the following: a reverse osmosis filter assembly, a nanofiltration membrane filter assembly, an ultrafiltration membrane filter assembly, and the like. The first filter assembly 2 can include an inlet for inputting raw water, a purified water outlet for outputting purified water, and a waste water outlet for discharging waste water.

[0070] As shown in Figure 1As shown, the outlet of the booster pump 3 can be connected and disconnected with the water storage assembly 1. As a possibility, a first on-off valve 7 is arranged between the outlet of the booster pump 3 and the water storage assembly 1, so as to realize the connection and disconnection. The inlet of the booster pump 3 is used to be connected with a water source.

[0071] As a possibility, in order to control the connection and disconnection between the water purification system and the water source, Figure 2 The structure diagram of the water purification system in the second embodiment is shown in the figure. Figure 2 As shown, the water purification system can include a water inlet valve 12 which is communicated with the inlet of the booster pump 3, and the inlet of the water inlet valve 12 is used to be connected with a water source.

[0072] The two ends of the backwater waterway 4 are respectively communicated with the purified water outlet of the first filter assembly 2 and the inlet of the water storage assembly 1. In order to prevent the raw water from being directly output through the backwater waterway 4 without entering the water storage assembly 1 and the first filter assembly 2 for filtration when the water purification system normally produces purified water for output to be used by a user, as a possibility, as shown, Figure 2 a second one-way assembly 9 can be arranged on the backwater waterway 4, and the second one-way assembly 9 can make the purified water outlet of the first filter assembly 2 conductive to the inlet of the water storage assembly 1. Of course, in other possible embodiments, an on-off valve can be arranged on the backwater waterway 4, and the on-off valve can be closed when the water purification system normally produces purified water for output to be used by a user.

[0073] The two ends of the first waterway 5 are respectively communicated with the outlet of the water storage assembly 1 and the inlet of the booster pump 3. When the water purification system includes the water inlet valve 12, one end of the first waterway 5 is connected between the inlet of the booster pump 3 and the water inlet valve 12. In order to prevent the booster pump 3 from being unable to boost the first filter assembly 2 to improve the filtration rate when the water purification system normally produces purified water for output to be used by a user, the first waterway 5 can be connected and disconnected. For example, as shown, Figure 2 a third on-off valve 51 can be arranged on the first waterway 5. The first waterway 5 is in a disconnected state when the water purification system normally produces purified water for output to be used by a user. Alternatively, the first waterway 5 can be unidirectionally conductive, for example, a first one-way assembly 52 is arranged on the first waterway 5, and the first one-way assembly 52 can make the outlet of the water storage assembly 1 conductive to the inlet of the booster pump 3.

[0074] The two ends of the second waterway 6 are respectively communicated with the inlet of the first filter assembly 2 and the outlet of the booster pump 3. If it is required that the raw water output by the outlet of the booster pump 3 flows through the water storage assembly 1 and then enters the first filter assembly 2 when the water purification system normally produces purified water for output to be used by a user, as a possibility, the second waterway 6 can be connected and disconnected. For example, as shown, Figure 2 a fourth on-off valve 61 can be arranged on the second waterway 6. When the raw water output by the outlet of the booster pump 3 flows through the water storage assembly 1, the fourth on-off valve 61 can be in a disconnected state.

[0075] When the first filter assembly 2 is a filter assembly that needs to discharge waste water during filtration, corresponding to this, as shown in Figure 1 and Figure 2 , the water purification system can include a waste water discharge waterway 11 that communicates with the waste water outlet of the first filter assembly 2. The waste water discharge waterway 11 is provided with a function valve 111 that has a waste water ratio function. Further, in order to make the water purification system not discharge waste water in some working states, the waste water discharge waterway 11 is provided with a function valve 111 that has a waste water ratio function and an on-off function.

[0076] As feasible, the water purification system can have a first state. In the first state, the outlet of the booster pump 3 is in a disconnected state with the water storage assembly 1, the inlet of the first filter assembly 2 is in a disconnected state with the outlet of the water storage assembly 1, and the booster pump 3 is in an open state. In the first state, under the action of the booster pump 3, the raw water in the water storage assembly 1 sequentially passes through the first waterway 5, the booster pump 3, the second waterway 6, enters the first filter assembly 2 for filtration to form purified water, and the purified water is output from the purified water outlet of the first filter assembly 2 and flows into the water storage assembly 1 through the backwater waterway 4. The above process continuously circulates until the water in the water storage assembly 1 is basically converted into purified water. The purpose of filtering the raw water in the water storage assembly 1 into purified water can be achieved through the first state.

[0077] As feasible, in the first state, the third on-off valve 51 is in an open state; the fourth on-off valve 61 is in an open state.

[0078] As feasible, in the first state, the function valve 111 is in a waste water ratio function state or a disconnected state. When the function valve 111 is in a waste water ratio function state, the waste water discharge waterway 11 will discharge the waste water discharged from the waste water outlet of the first filter assembly 2 out of the water purification system, therefore, the water inlet valve 12 can be in an open state to supplement raw water to the water purification system, so as to ensure that the water in the waterway and the water storage assembly 1 is sufficient. When the function valve 111 is in a disconnected state, the water inlet valve 12 can be in an open state or a disconnected state.

[0079] Further, the water purification system can have a second state. In the second state, the outlet of the booster pump 3 is in a communication state with the water storage assembly 1, and the inlet of the first filter assembly 2 is in a communication state with the outlet of the water storage assembly 1. The second state needs to be executed after the first state. In the second state, the purified water in the water storage assembly 1 can be pushed out into the first filter assembly 2 by the pressure of the booster pump 3 or the pressure of the water source, so as to replace the raw water in the first filter assembly 2 with purified water. At this time, the booster pump 3 is in an open state, and / or the water inlet valve 12 is in an open state. In this way, when the water purification system is not used for a long time and then used again, the TDS of the first cup of purified water output can be greatly reduced, thereby improving the user experience.

[0080] In the second state, in order to avoid the raw water flowing out of the outlet of the booster pump 3 to flow into the inlet of the first filter assembly 2 through the second waterway 6, as a preferred, the second waterway 6 can be in a disconnected state, such as the fourth on-off valve 61 is in a disconnected state. In the second state, when the clean water in the water storage assembly 1 is pushed out into the first filter assembly 2 by the pressure of the booster pump 3, the first waterway 5 can be in a disconnected state, such as the third on-off valve 51 is in a disconnected state, so as to avoid the clean water in the water storage assembly 1 after the water output by the booster pump 3 enters the water storage assembly 1, the clean water in the water storage assembly 1 flows back to the inlet of the booster pump 3 through the first waterway 5 without entering the inlet of the first filter assembly 2.

[0081] As feasible, in the second state, the function valve 111 is in a waste water ratio function state or a disconnected state or a connected state. If the function valve 111 is in a waste water ratio function state or a connected state, the water inlet valve 12 can be in an open state to supplement the raw water to the clean water system, so as to ensure that the raw water input by the water source pushes the clean water in the water storage assembly 1 into the first filter assembly 2, and then replaces the raw water in the first filter assembly 2 with clean water. If the function valve 111 is in a disconnected state, the water inlet valve 12 can be in a disconnected or open state, and the booster pump 3 needs to be in an open state, so as to drive the water in the waterway to flow,

[0082] As feasible, Figure 3 For the structure diagram of the clean water system in the third embodiment of the utility model, as shown in Figure 3 The clean water system can include: a third waterway 10, one end of the third waterway 10 is in communication with the waste water outlet of the first filter assembly 2, and the other end of the third waterway 10 is in communication with the inlet of the booster pump 3 or the first waterway 5 or the second waterway 6. Further, the third waterway 10 is provided with a third one-way assembly 101, and the third one-way assembly 101 can guide the waste water outlet of the first filter assembly 2 to the inlet of the booster pump 3 or the first waterway 5 or the second waterway 6. Alternatively, the third waterway 10 is provided with a small hole structure 102, so as to ensure that the third waterway 10 can only have a small flow. Alternatively, the third waterway 10 is provided with a fifth on-off valve 103.

[0083] When the fifth on-off valve 103 is arranged on the third waterway 10, as a possibility, in the first state, the fifth on-off valve 103 can be in the open state, so that the waste water discharged from the waste water outlet of the first filter assembly 2 is all returned to the inlet of the booster pump 3, so as to achieve the purpose of saving water, at this time, the function valve 111 is generally in the off state. In the second state, the fifth on-off valve 103 can be in the open state, so that the waste water discharged from the waste water outlet of the first filter assembly 2 is all returned to the inlet of the booster pump 3, so as to achieve the purpose of saving water, at this time, the function valve 111 is generally in the off state. When the water purification system is in normal water purification output to supply users for use, the fifth on-off valve 103 is in the off state.

[0084] When the water purification system is in normal water purification output to supply users for use, the booster pump 3 can be in the open state, the inlet of the first filter assembly 2 is communicated with the outlet of the water storage assembly 1, the outlet of the booster pump 3 is communicated with the water storage assembly 1, the second waterway 6 can be in the off state, the water inlet valve 12 is in the open state, and the function valve 111 is in the waste water ratio function state.

[0085] As a possibility, as shown in Figure 2 and Figure 3 , the water purification system can comprise a third filter assembly 14, and the inlet of the third filter assembly 14 is communicated with the purified water outlet of the first filter assembly 2. As a possibility, the third filter assembly 14 can comprise a post-filter assembly. In an embodiment, one end of the backwater waterway 4 can be connected with the purified water outlet of the first filter assembly 2 or downstream of the purified water outlet of the first filter assembly 2. The post-filter assembly can be any type of post-filter assembly, which can be a single filter cartridge or a post-filter assembly of a composite filter cartridge, and the specific type of the post-filter assembly is not limited in the present application.

[0086] In the present application, another embodiment of the water purification system is also proposed, Figure 4 for the structure diagram of the water purification system in the fourth embodiment of the present application, as shown in Figure 4 , the water purification system comprises a first filter assembly 2, a booster pump 3, the outlet of the booster pump 3 can be communicated with the inlet of the first filter assembly 2, a backwater waterway 4, both ends of the backwater waterway 4 are communicated with the purified water outlet of the first filter assembly 2 and the inlet of the booster pump 3 respectively, a water storage assembly 1, the water storage assembly 1 is arranged on the backwater waterway 4, a first waterway 5, both ends of the first waterway 5 are communicated with the water storage assembly 1 and the inlet of the first filter assembly 2 respectively, and a second waterway 6, both ends of the first waterway 5 are communicated with the water storage assembly 1 and the outlet of the booster pump 3 respectively.

[0087] In this embodiment, the first filter assembly 2 and the water storage assembly 1 can be similar to the first filter assembly 2 and the water storage assembly 1 in the other embodiments above, and will not be repeated here. In order to control the on-off between the water purifying system and the water source, the water purifying system can comprise a water inlet valve 12 in communication with the inlet of the booster pump 3, and the inlet of the water inlet valve 12 is used to be connected with the water source.

[0088] In this embodiment, the water purifying system can have a first state, in which the outlet of the booster pump 3 is in communication with the inlet of the first filter assembly 2, the second water path 6 is in the off state, and the booster pump 3 is in the open state. In the first state, under the action of the booster pump 3, the raw water in the water storage assembly 1 sequentially passes through the backwater path 4 and the booster pump 3 to enter the first filter assembly 2 for filtration to form purified water, and the purified water is output from the purified water outlet of the first filter assembly 2 and flows into the water storage assembly 1 through the backwater path 4. The above process is continuously circulated until the water in the water storage assembly 1 is basically converted into purified water. The purpose of filtering the raw water in the water storage assembly 1 into purified water can be achieved through the first state.

[0089] As a feasible, Figure 5 The structure diagram of the water purifying system in the fifth embodiment of the utility model embodiment is shown in Figure 5 The fourth on-off valve 61 can be arranged on the second water path 6 to realize the on-off of the second water path 6.

[0090] Further, in this embodiment, the water purifying system has a second state, in which the outlet of the booster pump 3 is in the off state with the inlet of the first filter assembly 2, and the second water path 6 is in the communication state. The second state is executed after the first state. In the second state, the purified water in the water storage assembly 1 can be pushed out through the second water path 6 by the pressure of the booster pump 3 or the water source, and then enters the first filter assembly 2 through the first water path 5, so as to replace the raw water in the first filter assembly 2 with the purified water. At this time, the booster pump 3 is in the open state, and / or the water inlet valve 12 is in the open state. In this way, when the water purifying system is not used for a long time and then used again, the TDS of the first cup of purified water output can be greatly reduced, thereby improving the user experience.

[0091] As a feasible, Figure 4 and Figure 5 The second on-off valve 8 can be connected between the outlet of the booster pump 3 and the inlet of the first filter assembly 2 to realize the on-off between the outlet of the booster pump 3 and the inlet of the first filter assembly 2.

[0092] As a feasible, in the second state, when the booster pump 3 is in the open state, the inlet of the booster pump 3 is in the off state with the backwater path 4 of the water storage assembly 1, so as to prevent the water of the water storage assembly 1 from flowing back to the inlet of the booster pump 3.

[0093] In this embodiment, as shown in Figure 4 and Figure 5 , the water purification system can include: a waste water discharge waterway 11 in communication with the waste water outlet of the first filter assembly 2. The waste water discharge waterway 11 is provided with a functional valve 111 with waste water ratio function. Further, in order to make the water purification system not to discharge waste water in some working states, the waste water discharge waterway 11 is provided with a functional valve 111 with waste water ratio function and on-off function.

[0094] Further, as shown in Figure 5 , a second one-way assembly 9 is arranged on the backwater waterway 4 between the water storage assembly 1 and the purified water outlet of the first filter assembly 2, and the second one-way assembly 9 can make the purified water outlet of the first filter assembly 2 conductive to the direction of the water storage assembly 1. A sixth on-off valve 13 can be arranged on the backwater waterway 4 between the water storage assembly 1 and the inlet of the booster pump 3.

[0095] In this embodiment, Figure 6 , the structure diagram of the water purification system in the sixth embodiment of the utility model is shown in Figure 6 , the water purification system can include: a third waterway 10, one end of the third waterway 10 is in communication with the waste water outlet of the first filter assembly 2, and the other end of the third waterway 10 is in communication with the inlet of the booster pump 3. Similarly, as feasible, the third waterway 10 is provided with a third one-way assembly 101, and the third one-way assembly 101 can make the waste water outlet of the first filter assembly 2 conductive to the direction of the inlet of the booster pump 3 or the first waterway 5 or the second waterway 6. Alternatively, the third waterway 10 is provided with a small hole structure 102, so as to ensure that the third waterway 10 can only have a small flow. Alternatively, the third waterway 10 is provided with a fifth on-off valve 103. When the fifth on-off valve 103 is arranged on the third waterway 10, as feasible, in the first state, the fifth on-off valve 103 can be in the open state, so that the waste water discharged from the waste water outlet of the first filter assembly 2 is all returned to the inlet of the booster pump 3, so as to achieve the purpose of saving water, at this time, the functional valve 111 is generally in the off state. In the second state, the fifth on-off valve 103 can be in the open state, so that the waste water discharged from the waste water outlet of the first filter assembly 2 is all returned to the inlet of the booster pump 3, so as to achieve the purpose of saving water, at this time, the functional valve 111 is generally in the off state. When the water purification system is in normal purified water production to supply users for use, the fifth on-off valve 103 is in the off state.

[0096] In this embodiment, when the water purification system is in normal water purification mode, in one embodiment, the booster pump 3 can be in an open state, the inlet of the first filter assembly 2 is connected with the outlet of the booster pump 3, the second on-off valve 8 is in an open state, the second water path 6 can be in a disconnected state, the water inlet valve 12 is in an open state, and the function valve 111 is in a waste water ratio function state. At this time, the input raw water does not pass through the water storage assembly 1. In another embodiment, the booster pump 3 can be in an open state, the inlet of the first filter assembly 2 is disconnected with the outlet of the booster pump 3, the second water path 6 can be in a connected state, the second on-off valve 8 is in an open state, the water inlet valve 12 is in an open state, and the function valve 111 is in a waste water ratio function state. At this time, the input raw water passes through the water storage assembly 1 and then enters the inlet of the first filter assembly 2.

[0097] In this embodiment, as shown in Figure 5 and Figure 6 , the water purification system can comprise a third filter assembly 14. The third filter assembly 14 is arranged in a similar manner as the third filter assembly 14 in other embodiments described above, and thus will not be described again here.

[0098] All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of to describe combinations shall include the elements, ingredients, components or steps identified, and such other elements ingredients, components or steps that do not materially affect the basic and novel characteristics of the combinations. The use of the term "comprising" or "including" to describe combinations herein shall also be taken to mean that the embodiments include additional elements, ingredients, components or steps. By using the term "may" herein, it is intended that any described attribute, feature or characteristic is optional. Multiple elements, ingredients, components or steps can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step can be divided into separate multiple elements, ingredients, components or steps. To describe the elements, ingredients, components or steps used to make or use the embodiments, the articles "a", "an", or "the" are intended to not be limiting, but rather to convey that a specific element, ingredient, component or step will be included in at least one embodiment.

[0099] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A water purification system, characterized by, The water purification system comprises: a water storage assembly; a first filter assembly, an inlet of the first filter assembly being capable of being connected and disconnected with an outlet of the water storage assembly; a booster pump, an outlet of the booster pump being capable of being connected and disconnected with the water storage assembly; a backwater waterway, two ends of the backwater waterway being respectively connected with a purified water outlet of the first filter assembly and an inlet of the water storage assembly; a first waterway, two ends of the first waterway being respectively connected with the outlet of the water storage assembly and an inlet of the booster pump; a second waterway, two ends of the second waterway being respectively connected with the inlet of the first filter assembly and the outlet of the booster pump.

2. The water purification system of claim 1, wherein The water purification system has a first state, in which the outlet of the booster pump is in a disconnected state with the water storage assembly, the inlet of the first filter assembly is in a disconnected state with the outlet of the water storage assembly, and the booster pump is in an open state.

3. The water purification system of claim 2, wherein, The water purification system has a second state, in which the outlet of the booster pump is in a connected state with the water storage assembly, and the inlet of the first filter assembly is in a connected state with the outlet of the water storage assembly.

4. The water purification system of claim 3, wherein The second waterway is capable of being connected and disconnected, and in the second state, the second waterway is in a disconnected state.

5. The water purification system of claim 3, wherein The first waterway is capable of being connected and disconnected, and in the second state, the first waterway is in a disconnected state.

6. The water purification system of claim 3, wherein A first one-way assembly is arranged on the first waterway, and the first one-way assembly is capable of conducting the outlet of the water storage assembly to the inlet of the booster pump.

7. The water purification system of claim 1, wherein A first on-off valve is arranged between the outlet of the booster pump and the water storage assembly.

8. The water purification system of claim 1, wherein, A second on-off valve is arranged between the inlet of the first filter assembly and the outlet of the water storage assembly.

9. The water purification system of claim 1, wherein, A second one-way assembly is arranged on the backwater waterway, and the second one-way assembly is capable of conducting the purified water outlet of the first filter assembly to the inlet of the water storage assembly.

10. The water purification system of claim 3, wherein, The water purification system further comprises a third waterway, one end of the third waterway being connected with a wastewater outlet of the first filter assembly, and the other end of the third waterway being connected with the inlet of the booster pump or the first waterway or the second waterway.

11. The water purification system of claim 3, wherein, The water purification system further comprises: a wastewater discharge waterway connected with the wastewater outlet of the first filter assembly, and a function valve with a wastewater ratio function and an on-off function being arranged on the wastewater discharge waterway; in the first state, the function valve is in a wastewater ratio function state or a disconnected state; in the second state, the function valve is in a wastewater ratio function state or a disconnected state or a connected state.

12. The water purification system of claim 11, wherein, The water purification system further comprises: a water inlet valve connected with the inlet of the booster pump; in the first state, when the function valve is in a wastewater ratio function state, the water inlet valve is in an open state; and when the function valve is in a disconnected state, the water inlet valve is in an open state or a disconnected state; in the second state, when the function valve is in a wastewater ratio function state, the water inlet valve is in an open state; when the function valve is in a disconnected state, the water inlet valve is in an open state or a disconnected state; and when the function valve is in a connected state, the water inlet valve is in an open state.

13. The water purification system of claim 1, wherein, The water storage assembly comprises a second filter assembly.

14. The water purification system of claim 1, wherein, The first filter assembly comprises at least one of the following: a reverse osmosis filter assembly, a nanofiltration membrane filter assembly, and an ultrafiltration membrane filter assembly.

15. The water purification system of claim 10, wherein, A third one-way assembly is arranged on the third water path, and the third one-way assembly can guide the wastewater outlet of the first filter assembly to be communicated with the inlet of the booster pump or the first water path or the second water path.

16. The water purification system of claim 10, wherein, A small hole structure is arranged on the third water path.

17. The water purification system of claim 3, wherein A third on-off valve is arranged on the first water path, and in the first state, the third on-off valve is in an open state. In the second state, the third on-off valve is in a closed state.

18. The water purification system of claim 3, wherein, A fourth on-off valve is arranged on the second water path, and in the first state, the fourth on-off valve is in an open state; and in the second state, the fourth on-off valve is in a closed state.

19. The water purification system of claim 10, wherein, A fifth on-off valve is arranged on the third water path, and in the first state, the fifth on-off valve is in an open state; and in the second state, the fifth on-off valve is in an open state.

20. The water purification system of claim 3, wherein, The water purification system further comprises: A water inlet valve in communication with the inlet of the booster pump; In the second state, the booster pump is in an open state, and / or the water inlet valve is in an open state.

21. A water purification system characterized by, The water purification system comprises: A first filter assembly; A booster pump, an outlet of the booster pump being capable of being communicated with an inlet of the first filter assembly; A backwater path, two ends of the backwater path being respectively in communication with a clean water outlet of the first filter assembly and an inlet of the booster pump; A water storage assembly, the water storage assembly being arranged on the backwater path, A first water path, two ends of the first water path being respectively in communication with the water storage assembly and the inlet of the first filter assembly; A second water path, two ends of the second water path being respectively in communication with the water storage assembly and an outlet of the booster pump.

22. The water purification system of claim 21, wherein, The water purification system has a first state, in which the outlet of the booster pump is in communication with the inlet of the first filter assembly, the second water path is in a closed state, and the booster pump is in an open state.

23. The water purification system of claim 22, wherein, The water purification system has a second state, in which the outlet of the booster pump is in a closed state with the inlet of the first filter assembly, and the second water path is in a communication state.

24. The water purification system of claim 23, wherein, A second one-way assembly is arranged on the backwater path between the water storage assembly and the clean water outlet of the first filter assembly, and the second one-way assembly can guide the clean water outlet of the first filter assembly to be communicated with the water storage assembly.

25. The water purification system of claim 23, wherein, In the second state, when the booster pump is in an open state, the inlet of the booster pump is in a closed state with the backwater path of the water storage assembly.

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