Water purification equipment

Abstract

The embodiment of the utility model provides water purification equipment, the water purification equipment has a backflow stage and a membrane soaking stage, when the water purification equipment is in the backflow stage, a first electromagnetic valve is communicated with a third pipeline, and effluent of a membrane filter element flows back to the membrane filter element through a second pipeline, the third pipeline, a fourth pipeline and a first pipeline; the water purification equipment is in a bubble membrane stage after the backflow stage, when the water purification equipment is in the bubble membrane stage, the first electromagnetic valve is closed, and effluent of the water storage piece enters the membrane filter element through the fourth pipeline and the first pipeline. Therefore, the water purification equipment can preliminarily reduce the total amount of dissolved solids in the effluent in the membrane filter element through the backflow stage, and further reduce the total amount of dissolved solids in the effluent in the membrane filter element through the membrane soaking stage, so that the total amount of dissolved solids in the effluent in the membrane filter element can be better reduced; the cleanliness of effluent of the water purification equipment can be improved, and the situation that the water treatment efficiency is low due to the fact that the water purification equipment purely adopts a backflow mode can be reduced.

Description

Technical Field

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

[0002] As people's living standards improve, they are paying more and more attention to water quality and hygiene, and equipping households with water purification equipment is becoming a mainstream trend.

[0003] Water purification equipment using related technologies typically filters water by using membrane filter cartridges. However, after the water purification equipment has been left to stand for a period of time, the ion concentration on the concentrate side of the membrane filter cartridge is much higher than that on the pure water side. Due to the influence of natural osmosis (forward osmosis), ions from the concentrate side will seep into the pure water side, resulting in an excessively high total amount of dissolved solids in the water within the water purification equipment. Utility Model Content

[0004] This utility model provides a water purification device to improve the above-mentioned technical problems.

[0005] The present invention achieves the above objectives through the following technical solutions.

[0006] This utility model provides a water purification device, which includes a membrane filter element, a water storage device, a pressurizing device, a check valve, a first pipe, a second pipe, a third pipe, a fourth pipe, and a first solenoid valve. The membrane filter element has a membrane filter element inlet and a membrane filter element outlet, and the water storage device has a water inlet and a water outlet. The first pipe is connected to the membrane filter element inlet, the pressurizing device is located in the first pipe, the second pipe is connected to the membrane filter element outlet, the third pipe is connected to the second pipe and the water inlet, the first solenoid valve is located in the third pipe, the fourth pipe is connected to the water outlet and the water inlet of the pressurizing device, and the check valve is located in the fourth pipe. The water purification device has a reflux stage and a bubble membrane stage. When the water purification device is in the reflux stage, the first solenoid valve opens the third pipe, and the water effluent from the membrane filter element flows back into the membrane filter element through the second, third, fourth, and first pipes. After the reflux stage, the water purification device enters the bubble membrane stage. When the water purification device is in the bubble membrane stage, the first solenoid valve closes, and the water effluent from the water storage device enters the membrane filter element through the fourth pipe and the first pipe.

[0007] In some embodiments, the water purification equipment further includes an inlet pipe and a second solenoid valve. One end of the inlet pipe is connected to the first pipe and the fourth pipe, and the second solenoid valve is located in the inlet pipe. When the water purification equipment is in the reflux stage, the first solenoid valve opens the third pipe, and the second solenoid valve opens the inlet pipe. Water enters the inlet pipe and flows through the inlet pipe and the first pipe into the membrane filter element. The water effluent from the membrane filter element flows back into the membrane filter element through the second pipe, the third pipe, the fourth pipe, and the first pipe. After the reflux stage, the water purification equipment enters the bubble membrane stage. When the water purification equipment is in the bubble membrane stage, the first solenoid valve is closed, the second solenoid valve is closed, and the water effluent from the water storage device enters the membrane filter element through the fourth pipe and the first pipe.

[0008] In some embodiments, the membrane filter element is also provided with a drain outlet, and the water purification equipment also includes a concentrated water solenoid valve and a concentrated water discharge pipe. The concentrated water discharge pipe is connected to the drain outlet, and the concentrated water solenoid valve is located in the concentrated water discharge pipe. When the water purification equipment is in the reflux stage, the first solenoid valve opens the third pipe, the concentrated water solenoid valve closes, and the water effluent from the membrane filter element flows back into the membrane filter element through the second, third, fourth, and first pipes. After the reflux stage, the water purification equipment is in the bubble membrane stage. When the water purification equipment is in the bubble membrane stage, the first solenoid valve closes, the concentrated water solenoid valve opens the concentrated water discharge pipe, and the water effluent from the water storage device enters the membrane filter element through the fourth and first pipes. The concentrated water in the membrane filter element is discharged from the concentrated water discharge pipe.

[0009] In some implementations, the outlet is located below the inlet.

[0010] In some implementations, the outlet is located at the bottom of the water storage unit.

[0011] In some embodiments, the water storage device is provided with a flow channel located below the water inlet, the flow channel connecting the water outlet and the water inlet, and the flow channel is positioned closer to the water outlet than the water inlet.

[0012] In some embodiments, the water storage component includes a housing and a guide fluid, the guide fluid being assembled into the housing, the guide fluid and the housing forming a flow channel, one end of the guide fluid being located between the inlet and the outlet, and the guide fluid being adapted to guide water from the inlet to the flow channel.

[0013] In some embodiments, the water storage component includes an inner bottom wall, with an outlet located at the end of the inner bottom wall, the inner bottom wall being inclined and adapted to guide water from the inlet to the outlet.

[0014] In some embodiments, the water storage device further includes a drainage inner wall, which is connected to the inner bottom wall and the wall surface of the water outlet. The drainage inner wall is inclined, and the inclination angle of the drainage inner wall is greater than that of the inner bottom wall.

[0015] In some embodiments, the water storage component is a hollow container, which includes a water storage cavity that is filled with water.

[0016] The water purification device provided in this embodiment of the invention has a reflux stage and a bubble membrane stage. During the reflux stage, the first solenoid valve opens the third pipe, and the water effluent from the membrane filter returns to the membrane filter via the second, third, fourth, and first pipes. After the reflux stage, the water purification device enters the bubble membrane stage. During the bubble membrane stage, the first solenoid valve closes, and the water effluent from the water storage unit enters the membrane filter via the fourth and first pipes. Thus, the water purification device can initially reduce the total dissolved solids in the water within the membrane filter through the reflux stage, and further reduce the total dissolved solids through the bubble membrane stage, thereby helping to better reduce the total dissolved solids in the water within the membrane filter and improving water cleanliness. In addition, the water storage unit can store the pure water filtered by the membrane filter element, so that the membrane filter element can use the pure water it filters and the pure water in the water storage unit to replace the concentrated water in the membrane filter element during the soaking stage. This helps to increase the amount of pure water in the membrane filter element and improve the efficiency of pure water replacing concentrated water in the membrane filter element. This helps to improve the treatment efficiency of the water purification equipment for the total amount of dissolved solids in the water in the membrane filter element and helps to reduce the situation where the water purification equipment uses a simple reflux method, resulting in low water treatment efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the water purification equipment provided in this embodiment of the present invention is shown.

[0019] Figure 2 A longitudinal sectional view of the water storage component provided in this embodiment of the present invention is shown.

[0020] Figure 3 A longitudinal sectional view of a water storage component provided in another embodiment of the present invention is shown. Detailed Implementation

[0021] To enable those skilled in the art to better understand the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1 This utility model provides a water purification device 1000, which includes a membrane filter element 100, a water storage device 200, a pressurizing device 700, a check valve 800, a first pipe 310, a second pipe 320, a third pipe 330, a fourth pipe 340, and a first solenoid valve 400. The membrane filter element 100 has a membrane filter element inlet 110 and a membrane filter element outlet 120. The water storage device 200 has a water inlet 210 and a water outlet 220. The first pipe 310 is connected to the membrane filter element inlet 110, the pressurizing device 700 is located in the first pipe 310, the second pipe 320 is connected to the membrane filter element outlet 120, the third pipe 330 is connected to the second pipe 320 and the water inlet 210, the first solenoid valve 400 is located in the third pipe 330, the fourth pipe 340 is connected to the water outlet 220 and the water inlet of the pressurizing device 700, and the check valve 800 is located in the fourth pipe 340. Among them, the booster device 700 can be a booster pump.

[0024] In this way, the pressurization device 700 can draw water from the fourth pipe 340 to meet the water intake demand of the first pipe 310, thereby helping to meet the water replenishment efficiency of the membrane filter 100, ensuring that there is enough water and pure water replenishment in the membrane filter 100, ensuring that the pure water side of the membrane filter 100 is in a suitable pressure environment, and helping to better reduce the leakage of water from the concentrate side of the membrane filter 100 to the pure water side. The check valve 800 can prevent water in the first pipe 310 from flowing back to the fourth pipe 340, which helps to ensure the normal operation of the water purification equipment 1000.

[0025] The water purification equipment 1000 has a reflux stage and a bubble membrane stage. When the water purification equipment 1000 is in the reflux stage, the first solenoid valve 400 opens the third pipe 330, and the water effluent from the membrane filter element 100 flows back to the membrane filter element 100 through the second pipe 320, the third pipe 330, the fourth pipe 340 and the first pipe 310. After the reflux stage, the water purification equipment 1000 is in the bubble membrane stage. When the water purification equipment 1000 is in the bubble membrane stage, the first solenoid valve 400 closes, and the water effluent from the water storage device 200 enters the membrane filter element 100 through the fourth pipe 340 and the first pipe 310.

[0026] In this way, the water purification equipment 1000 can initially reduce the total amount of dissolved solids in the water within the membrane filter element 100 through the reflux stage, and further reduce the total amount of dissolved solids in the water within the membrane filter element 100 through the foaming stage, thereby helping to better reduce the total amount of dissolved solids in the effluent within the membrane filter element 100 and helping to improve the cleanliness of the water. Furthermore, the water storage unit 200 can store the pure water filtered by the membrane filter element 100, allowing the membrane filter element 100 to use its own filtered pure water and the pure water in the water storage unit 200 to replace the concentrated water in the membrane filter element 100 during the soaking stage. This helps increase the amount of pure water in the membrane filter element 100 and improves the efficiency of pure water replacing concentrated water in the membrane filter element 100. This, in turn, helps improve the treatment efficiency of the water purification equipment 1000 for the total amount of dissolved solids in the water of the membrane filter element 100. It also helps reduce the situation where the water purification equipment 1000 uses a simple reflux method, resulting in low water treatment efficiency. The booster device 700's suction of water from the fourth pipe 340 also helps improve the efficiency of water replenishment from the fourth pipe 340 to the membrane filter element assembly 100, and helps improve the reflux efficiency of water during the reflux stage. The check valve 800 prevents water in the first pipe 310 from flowing back to the fourth pipe 340, which also helps improve the reflux efficiency of water during the reflux stage, and helps improve the water treatment efficiency of the water purification equipment 1000.

[0027] For example, the pure water prepared by the membrane filter element 100 can enter the water storage container 200 through the second pipe 320 and the third pipe 330, filling the water storage container 200. Under the action of continuous pure water pressure, the pure water in the water storage container 200 flows back into the membrane filter element 100 through the fourth pipe 340 and the first pipe 310. The returned pure water mixes with the pure water originally prepared in the membrane filter element 100, thereby reducing the total amount of dissolved solids in the water in the membrane filter element 100. Then, the pure water in the water storage container 200 directly enters the membrane filter element 100 through the fourth pipe 340 and the first pipe 310 to further reduce the total amount of dissolved solids in the water in the membrane filter element 100. Finally, the membrane filter element 100 filters and separates pure water and concentrated water, and the pure water is available for the user.

[0028] Thus, the water purification equipment 1000 employs a combined reflux and bubble membrane treatment. The reflux stage pre-treats the water in the membrane filter 100, followed by further treatment in the bubble membrane stage. This increases the amount of pure water in the membrane filter 100 during the bubble membrane stage, improving the efficiency of pure water replacing concentrated water. This, in turn, enhances the water purification equipment 1000's efficiency in treating the total dissolved solids in the membrane filter 100. It also reduces the low water treatment efficiency that would result from solely using the reflux method, and minimizes the need for a large water storage unit 200 to store a significant amount of water to treat the water in the membrane filter 100. This reduces the required water storage capacity of the water storage unit 200, thereby reducing its volume and ultimately the overall size of the water purification equipment 1000.

[0029] In some embodiments, the membrane filter element 100 may include a housing and a filter element, for example, the filter element may be a filter membrane. The filter element is assembled in the housing, and the housing has a membrane filter element inlet 110, a membrane filter element outlet 120 and a drain outlet 130. The filter element and the housing form a concentrate channel, and the filter element has a pure water channel. The membrane filter element inlet 110 faces the filter element, the membrane filter element outlet 120 is connected to the pure water channel, and the drain outlet 130 is connected to the concentrate channel. The membrane filter element inlet 110, the membrane filter element outlet 120 and the drain outlet 130 are located on different sides of the filter element.

[0030] In this way, water can enter the filter element from the membrane filter inlet 110, and the pure water filtered by the filter element enters the pure water channel and is discharged from the membrane filter outlet 120. The concentrated water enters the concentrated water channel downward and is discharged from the drain outlet 130, thereby realizing the separation of concentrated water and pure water in the membrane filter element 100.

[0031] In some embodiments, the water purification device 1000 further includes an inlet pipe 350 and a second solenoid valve 500. One end of the inlet pipe 350 is connected to the first pipe 310 and the fourth pipe 340, and the second solenoid valve 500 is disposed in the inlet pipe 350. When the water purification equipment 1000 is in the reflux stage, the first solenoid valve 400 opens the third pipe 330, and the second solenoid valve 500 opens the inlet pipe 350. Water enters the inlet pipe 350 and flows through the inlet pipe 350 and the first pipe 310 into the membrane filter element 100. The water effluent from the membrane filter element 100 flows back into the membrane filter element 100 through the second pipe 320, the third pipe 330, the fourth pipe 340, and the first pipe 310. After the reflux stage, the water purification equipment 1000 enters the bubble membrane stage. When the water purification equipment 1000 is in the bubble membrane stage, the first solenoid valve 400 closes, the second solenoid valve 500 closes, and the water effluent from the water storage device 200 enters the membrane filter element 100 through the fourth pipe 340 and the first pipe 310.

[0032] In this way, the water purification equipment 1000 can replenish water to the membrane filter element 100 through the inlet pipe 350, ensuring that the membrane filter element 100 has sufficient water to meet its filtration needs and allow it to perform its reflux phase normally. This helps ensure the normal operation of the water purification equipment 1000 during the reflux phase. Furthermore, the water purification equipment 1000 can replenish water to the membrane filter element 100 through the inlet pipe 350 to ensure that the membrane filter element 100 has filtered pure water. This helps maintain a suitable pressure environment on the pure water side of the membrane filter element 100, reducing the possibility of water seeping from the concentrated water side to the pure water side.

[0033] In some embodiments, the membrane filter element 100 is also provided with a drain outlet 130, and the water purification device 1000 also includes a concentrate solenoid valve 600 and a concentrate discharge pipe 360, the concentrate discharge pipe 360 ​​being connected to the drain outlet 130, and the concentrate solenoid valve 600 being disposed in the concentrate discharge pipe 360. When the water purification equipment 1000 is in the reflux stage, the first solenoid valve 400 opens the third pipe 330, the concentrated water solenoid valve 600 closes, and the water effluent from the membrane filter element 100 flows back to the membrane filter element 100 through the second pipe 320, the third pipe 330, the fourth pipe 340 and the first pipe 310. After the reflux stage, the water purification equipment 1000 enters the bubble membrane stage. When the water purification equipment 1000 is in the bubble membrane stage, the first solenoid valve 400 closes, the concentrated water solenoid valve 600 opens the concentrated water discharge pipe 360, and the water effluent from the water storage device 200 enters the membrane filter element 100 through the fourth pipe 340 and the first pipe 310. The concentrated water in the membrane filter element 100 is discharged from the concentrated water discharge pipe 360.

[0034] In this way, the concentrated water solenoid valve 600 can hold back pressure during the reflux phase, which helps maintain the membrane filter element 100 in a suitable pressure environment, helps maintain the normal operation of the membrane filter element 100, and thus helps ensure the normal operation of the water purification equipment 1000 during the reflux phase. The concentrated water solenoid valve 600 can release pressure during the membrane soaking phase, allowing the concentrated water discharge pipe 360 ​​to connect with the outside. The concentrated water in the membrane filter element 100 can be discharged from the concentrated water discharge pipe 360, which also makes the pressure at the membrane filter element inlet 110 greater than the pressure at the drain outlet 130, causing the water at the membrane filter element inlet 110 to move to the drain outlet 130 more quickly, thereby helping to improve the filtration efficiency of the membrane filter element 100.

[0035] See Figure 2 In some embodiments, the outlet 220 is located below the inlet 210. In this way, water entering from the inlet 210 can flow naturally into the water storage unit 200 under the action of gravity and be discharged through the outlet 220, which helps to reduce water flow resistance, facilitates water discharge, improves the efficiency of water discharge from the water storage unit 200, and improves the efficiency of water entering the membrane filter element 100.

[0036] In some embodiments, the outlet 220 is located at the bottom 230 of the water storage unit 200. This facilitates the complete discharge of water from the water storage unit 200 through the outlet 220, improves the utilization rate of water in the water storage unit 200, ensures that all pure water in the water storage unit 200 can enter the membrane filter element 100, increases the amount of pure water in the membrane filter element 100 during the foaming stage, and improves the efficiency of pure water replacing concentrated water in the membrane filter element 100. This, in turn, helps to improve the treatment efficiency of the water purification equipment 1000 for the total amount of dissolved solids in the water in the membrane filter element 100.

[0037] In some embodiments, the water storage component 200 is provided with a flow channel 240, which is located below the water inlet 210. The flow channel 240 connects the water outlet 220 and the water inlet 210, and the flow channel 240 is positioned relative to the water inlet 210 and closer to the water outlet 220.

[0038] In this way, the turbulent water entering the inlet 210 can flow a certain distance in the water storage unit 200 before entering the flow channel 240, which helps to reduce the water flow velocity, improve the stability of the water flow, reduce the noise generated by the turbulent water flow hitting the inner wall of the water storage unit 200, and also helps to reduce the situation where the water entering from the inlet 210 is directly discharged from the outlet 220.

[0039] In some embodiments, the water storage component 200 includes a housing 250 and a guide fluid 260, the guide fluid 260 being assembled to the housing 250, the guide fluid 260 and the housing 250 forming a flow channel 240, one end of the guide fluid 260 being located between the inlet 210 and the outlet 220, and the guide fluid 260 being adapted to guide water from the inlet 210 to the flow channel 240.

[0040] In this way, the water flowing out of the inlet 210 can flow to the channel 240 in a predetermined direction, which also helps to disperse the impact of the water flow on the water storage component 200, helps to reduce the noise generated by the water storage component 200, and helps to ensure that the water in the water storage component 200 can completely enter the channel 240 and be completely discharged from the outlet 220, which helps to improve the utilization rate of the water in the water storage component 200. The guide fluid 260 can also block the water flowing from the inlet 210 to the outlet 220, which also helps to reduce the situation where the water entering from the inlet 210 is directly discharged from the outlet 220.

[0041] Alternatively, the aforementioned guide fluid 260 and flow channel 240 can be omitted to simplify the structure of the water storage component 200. The following explanation assumes that the water storage component 200 does not have the guide fluid 260 and flow channel 240.

[0042] Please see Figure 3In some embodiments, the water storage component 200 includes an inner bottom wall 280, an outlet 220 located at the end of the inner bottom wall 280, the inner bottom wall 280 being inclined, and the inner bottom wall 280 being adapted to guide water from the inlet 210 to the outlet 220.

[0043] In this way, the water flowing out of the inlet 210 can flow in a predetermined direction to the outlet 220, which helps to facilitate the complete discharge of water from the water storage unit 200 from the outlet 220, improves the utilization rate of water in the water storage unit 200, ensures that all pure water in the water storage unit 200 can enter the membrane filter element 100, increases the amount of pure water in the membrane filter element 100 during the foaming stage, and improves the efficiency of pure water replacing concentrated water in the membrane filter element 100. This, in turn, helps to improve the treatment efficiency of the water purification equipment 1000 for the total amount of dissolved solids in the water in the membrane filter element 100. The water storage unit 200 does not require a separate guide 260 and flow channel 240, thus simplifying its structure and facilitating manufacturing.

[0044] In some embodiments, the water storage component 200 further includes a drainage inner wall 290, which is connected to the wall surface of the inner bottom wall 280 and the outlet 220. The drainage inner wall 290 is inclined, and the inclination angle of the drainage inner wall 290 is greater than that of the inner bottom wall 280.

[0045] In this way, the water flowing out of the inlet 210 can flow along the inner bottom wall 280 and the drainage inner wall 290 to the outlet 220, which helps to facilitate the water in the water storage component 200 to be discharged completely from the outlet 220, which helps to improve the utilization rate of the water in the water storage component 200, and also helps to reduce the waste of resources caused by the incomplete discharge of water in the water storage component 200.

[0046] In some embodiments, the water storage component 200 is a hollow container, including a water storage cavity 270 that fills the water storage component 200. This helps to increase the water storage capacity of the water storage component 200, allowing it to store more water. This ensures that the water purification equipment 1000 can provide more water to the membrane filter element 100 during the membrane soaking stage, thereby improving the efficiency of pure water replacing concentrated water in the membrane filter element 100. This, in turn, helps to improve the treatment efficiency of the water purification equipment 1000 for the total amount of dissolved solids in the water within the membrane filter element 100.

[0047] The phrase "the water storage cavity 270 is filled with the water storage component 200" means that the water storage component 200 contains only the water storage cavity 270, and no other components are installed inside the water storage component 200; the water storage cavity 270 is an empty cavity.

[0048] In summary, the water purification device 1000 provided by this utility model has a reflux stage and a bubble membrane stage. When the water purification device 1000 is in the reflux stage, the first solenoid valve 400 opens the third pipe 330, and the water effluent from the membrane filter element 100 flows back into the membrane filter element 100 via the second pipe 320, the third pipe 330, the fourth pipe 340, and the first pipe 310. After the reflux stage, the water purification device 1000 enters the bubble membrane stage. When the water purification device 1000 is in the bubble membrane stage, the first solenoid valve 400 closes, and the water effluent from the water storage device 200 enters the membrane filter element 100 via the fourth pipe and the first pipe. Thus, the water purification device 1000 can initially reduce the total amount of dissolved solids in the water within the membrane filter element 100 through the reflux stage, and further reduce the total amount of dissolved solids in the water within the membrane filter element 100 through the bubble membrane stage, thereby helping to better reduce the total amount of dissolved solids in the water within the membrane filter element 100 and improving the water cleanliness. In addition, the water storage unit 200 can store the pure water filtered by the membrane filter element 100, so that during the soaking stage, the membrane filter element 100 can use its own filtered pure water and the pure water in the water storage unit 200 to replace the concentrated water in the membrane filter element 100. This helps to increase the amount of pure water in the membrane filter element 100 and improve the efficiency of pure water replacing concentrated water in the membrane filter element 100. This helps to improve the treatment efficiency of the water purification equipment 1000 for the total amount of dissolved solids in the water in the membrane filter element 100, and helps to reduce the situation where the water purification equipment 1000 simply uses the reflux method, resulting in low water treatment efficiency.

[0049] In this embodiment of the invention, unless otherwise explicitly specified or limited, the term "assembly" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection via an intermediate medium; it can be a connection within two components; it can be merely surface contact; or it can be a surface contact connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0050] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In the embodiments of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in the embodiments of this utility model, as well as the features of different embodiments or examples.

[0051] The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit them. Although the embodiments of the present utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be included within the protection scope of the present utility model.

Claims

1. A water purification device, characterized in that, include: The membrane filter element has a membrane filter element inlet and a membrane filter element outlet; A water storage device, wherein the water storage device is provided with a water inlet and a water outlet; Pressure booster and check valve; as well as The system comprises a first pipe, a second pipe, a third pipe, a fourth pipe, and a first solenoid valve. The first pipe is connected to the inlet of the membrane filter element, and the booster device is located in the first pipe. The second pipe is connected to the outlet of the membrane filter element, the third pipe is connected to the second pipe and the inlet, the first solenoid valve is located in the third pipe, the fourth pipe is connected to the outlet and the inlet of the booster device, and the check valve is located in the fourth pipe. The water purification equipment has a reflux stage and a bubble membrane stage. When the water purification equipment is in the reflux stage, the first solenoid valve opens the third pipe, and the water effluent from the membrane filter element flows back to the membrane filter element through the second pipe, the third pipe, the fourth pipe, and the first pipe. After the reflux stage, the water purification equipment is in the bubble membrane stage. When the water purification equipment is in the bubble membrane stage, the first solenoid valve closes, and the water effluent from the water storage device enters the membrane filter element through the fourth pipe and the first pipe.

2. The water purification equipment according to claim 1, characterized in that, The water purification equipment also includes an inlet pipe and a second solenoid valve. One end of the inlet pipe is connected to the first pipe and the fourth pipe, and the second solenoid valve is located in the inlet pipe. When the water purification equipment is in the reflux stage, the first solenoid valve opens the third pipe, and the second solenoid valve opens the inlet pipe. Water enters through the inlet pipe and flows through the first pipe into the membrane filter element. The water effluent from the membrane filter element flows back into the membrane filter element through the second pipe, the third pipe, the fourth pipe, and the first pipe. After the reflux stage, the water purification equipment is in the bubble membrane stage. When the water purification equipment is in the bubble membrane stage, the first solenoid valve closes, the second solenoid valve closes, and the water effluent from the water storage device flows into the membrane filter element through the fourth pipe and the first pipe.

3. The water purification equipment according to claim 1, characterized in that, The membrane filter element is also provided with a drain outlet, and the water purification equipment also includes a concentrated water solenoid valve and a concentrated water discharge pipe. The concentrated water discharge pipe is connected to the drain outlet, and the concentrated water solenoid valve is installed in the concentrated water discharge pipe. When the water purification equipment is in the reflux stage, the first solenoid valve opens the third pipe, the concentrated water solenoid valve closes, and the water effluent from the membrane filter returns to the membrane filter through the second pipe, the third pipe, the fourth pipe, and the first pipe. After the reflux stage, the water purification equipment is in the bubble membrane stage. When the water purification equipment is in the bubble membrane stage, the first solenoid valve closes, the concentrated water solenoid valve opens the concentrated water discharge pipe, and the water effluent from the water storage device enters the membrane filter through the fourth pipe and the first pipe. The concentrated water in the membrane filter is discharged from the concentrated water discharge pipe.

4. The water purification equipment according to claim 1, characterized in that, The outlet is located below the inlet.

5. The water purification equipment according to claim 4, characterized in that, The water outlet is located at the bottom of the water storage component.

6. The water purification equipment according to claim 4, characterized in that, The water storage component is provided with a flow channel, which is located below the water inlet. The flow channel connects the water outlet and the water inlet, and is positioned relative to the water inlet and close to the water outlet.

7. The water purification equipment according to claim 6, characterized in that, The water storage component includes a shell and a guide fluid. The guide fluid is assembled in the shell, and the guide fluid and the shell form the flow channel. One end of the guide fluid is located between the water inlet and the water outlet, and the guide fluid is adapted to guide the water from the water inlet to the flow channel.

8. The water purification equipment according to claim 4, characterized in that, The water storage component includes an inner bottom wall, the water outlet is located at the end of the inner bottom wall, the inner bottom wall is inclined, and the inner bottom wall is adapted to guide the water from the water inlet to the water outlet.

9. The water purification equipment according to claim 8, characterized in that, The water storage component also includes a drainage inner wall, which is connected to the inner bottom wall and the wall surface of the water outlet. The drainage inner wall is inclined, and the inclination angle of the drainage inner wall is greater than that of the inner bottom wall.

10. The water purification equipment according to claim 1, characterized in that, The water storage component is a hollow container, and the water storage component includes a water storage cavity, which is filled with the water storage component.

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