Water treatment system

Abstract

The utility model relates to the technical field of food processing, and provides a water treatment system which comprises a coarse filter unit, an ultrafiltration unit, an activated carbon filter device and a reverse osmosis filter unit. The coarse filter unit is connected with the ultrafiltration unit, the ultrafiltration unit is connected with the activated carbon filter device, and the activated carbon filter device is connected with the reverse osmosis filter unit. During water treatment, tap water firstly enters the coarse filter unit to be coarsely filtered so as to remove large-particle impurities such as silt in the tap water. And then the wastewater enters an ultrafiltration unit to remove most of small-particle silt, suspended solids, colloids, bacteria, chloride ions and the like in the wastewater. And then entering the activated carbon filtering device to further remove residual chloride ions, organic matters and the like in the activated carbon filtering device. And finally, the tap water enters the reverse osmosis filtering unit, so that impurities such as residual chloride ions and organic matters in the tap water are removed. Therefore, the filtering effect of the water treatment system can be greatly improved, and the quality of the purified water for food is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a water treatment system. Background Art

[0002] In the process of food processing, water is often needed as a raw material or ingredient. In order to improve the quality of food and ensure the safety of food, it is usually necessary to set up a water treatment system to filter tap water and form pure water for standby use. The filtration effect of the existing water treatment system is poor, and a large amount of impurities such as chloride ions and organic matter will remain in the pure water formed by filtration. Utility Model Content

[0003] The utility model provides a water treatment system, which is used to solve or improve the problem of poor filtering effect of the existing water treatment system.

[0004] A water treatment system provided by the utility model comprises a coarse filtration unit, an ultrafiltration unit, an activated carbon filtration device and a reverse osmosis filtration unit.

[0005] The coarse filtration unit is connected to the ultrafiltration unit. The ultrafiltration unit is connected to the activated carbon filtration device. The activated carbon filtration device is connected to the reverse osmosis filtration unit.

[0006] According to a water treatment system provided by the utility model, the ultrafiltration unit comprises a plurality of ultrafiltration tanks arranged in parallel, each of which is provided with a detachable ultrafiltration membrane core.

[0007] The ultrafiltration unit also includes an ultrafiltration water storage tank and a first booster pump. The outlet of each ultrafiltration tank is connected to the inlet of the ultrafiltration water storage tank. The outlet of the ultrafiltration water storage tank is connected to the inlet of the first booster pump. The outlet of the first booster pump is connected to the activated carbon filtration device.

[0008] According to a water treatment system provided by the utility model, the ultrafiltration unit includes a backwash pump and a cleaning agent adding device. The inlet of the backwash pump is connected to the outlet of the ultrafiltration water storage tank. The outlet of the backwash pump and the cleaning agent adding device are both connected to the inner cavity of the ultrafiltration tank.

[0009] According to a water treatment system provided by the utility model, the reverse osmosis filtration unit includes a primary reverse osmosis filtration device and a cleaning water storage tank. The outlet of the activated carbon filtration device is connected to the inlet of the primary reverse osmosis filtration device. The outlet of the primary reverse osmosis filtration device is connected to the inlet of the cleaning water storage tank.

[0010] According to a water treatment system provided by the utility model, the reverse osmosis filtration unit further includes a secondary reverse osmosis filtration device, a second booster pump and a batching water storage tank. The inlet of the second booster pump is connected to the outlet of the cleaning water storage tank. The outlet of the second booster pump is connected to the inlet of the secondary reverse osmosis filtration device. The outlet of the secondary reverse osmosis filtration device is connected to the inlet of the batching water storage tank.

[0011] According to a water treatment system provided by the utility model, the reverse osmosis filtration unit further comprises a concentrated water reverse osmosis unit. The primary reverse osmosis filtration device is provided with a concentrated water diversion port. The concentrated water diversion port is connected to the inlet of the concentrated water reverse osmosis unit. The outlet of the concentrated water reverse osmosis unit is connected to the cleaning water storage tank.

[0012] According to a water treatment system provided by the utility model, the concentrated water reverse osmosis unit comprises a concentrated water recovery tank, a concentrated water booster pump and a concentrated water reverse osmosis filtering device.

[0013] The inlet of the concentrated water recovery tank is connected to the concentrated water outlet. The outlet of the concentrated water recovery tank is connected to the inlet of the concentrated water booster pump. The outlet of the concentrated water booster pump is connected to the inlet of the concentrated water reverse osmosis filtration device. The outlet of the concentrated water reverse osmosis filtration device is connected to the cleaning water storage tank.

[0014] According to a water treatment system provided by the utility model, the reverse osmosis filtration unit further comprises a cleaning agent adding device, and the cleaning agent adding device is connected to the primary reverse osmosis filtration device and the secondary reverse osmosis filtration device.

[0015] According to a water treatment system provided by the utility model, the reverse osmosis filtration unit further comprises an antiscalant adding device, and the antiscalant adding device is connected to the primary reverse osmosis filtration device.

[0016] According to a water treatment system provided by the utility model, the water treatment system also includes a first water supply pump, a second water supply pump, a first ultraviolet sterilization device and a second ultraviolet sterilization device.

[0017] The outlet of the cleaning water storage tank is connected to the inlet of the first water supply pump. The outlet of the first water supply pump is connected to the first ultraviolet sterilizer. The outlet of the batching water storage tank is connected to the inlet of the second water supply pump. The outlet of the second water supply pump is connected to the second ultraviolet sterilizer. The first ultraviolet sterilizer and the second ultraviolet sterilizer are respectively connected to corresponding water supply lines.

[0018] The water treatment system provided by the utility model includes a coarse filtration unit, an ultrafiltration unit, an activated carbon filtration device and a reverse osmosis filtration unit. The inlet of the coarse filtration unit is connected to a tap water source, the outlet of the coarse filtration unit is connected to the inlet of the ultrafiltration unit, the outlet of the ultrafiltration unit is connected to the inlet of the activated carbon filtration device, and the outlet of the activated carbon filtration device is connected to the inlet of the reverse osmosis filtration unit.

[0019] Through this structural setting, during the water treatment process, the tap water first enters the coarse filtration unit for coarse filtration to remove large particles of impurities such as mud and sand. Then it enters the ultrafiltration unit to remove most of the small particles of mud and sand, suspended matter, colloids, bacteria and chloride ions. Then it enters the activated carbon filter device to further remove the remaining chloride ions and organic matter. Finally, it enters the reverse osmosis filtration unit to remove the residual chloride ions and organic matter and other impurities in the tap water. As a result, the filtering effect of the water treatment system can be greatly improved, thereby improving the quality of pure water for food. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the water treatment system provided by the utility model.

[0022] Figure numerals: 100, coarse filtration unit; 210, ultrafiltration tank; 220, ultrafiltration water storage tank; 230, backwash pump; 240, cleaning agent adding device; 300, first booster pump; 400, activated carbon filtration device; 510, primary reverse osmosis filtration device; 520, cleaning water storage tank; 530, second booster pump; 540, secondary reverse osmosis filtration device; 550, batching water storage tank; 561, concentrate recovery tank; 562, concentrate booster pump; 563, concentrate reverse osmosis filtration device; 571, first water supply pump; 572, first ultraviolet sterilization device; 581, second water supply pump; 582, second ultraviolet sterilization device; 591, cleaning agent adding device; 592, scale inhibitor adding device. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representation of the above terms does 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. In addition, in the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples to make the purpose, technical solutions and advantages of the utility model embodiment clearer. The technical solutions in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the utility model.

[0028] Combine the following Figure 1 A water treatment system provided by an embodiment of the utility model is described. It should be understood that the following description is only an illustrative embodiment of the utility model and does not constitute any particular limitation to the utility model.

[0029] The embodiment of the utility model provides a water treatment system, such as Figure 1 As shown, the water treatment system includes a coarse filtration unit 100, an ultrafiltration unit, an activated carbon filtration device 400 and a reverse osmosis filtration unit.

[0030] The coarse filtration unit 100 is connected to the ultrafiltration unit. The ultrafiltration unit is connected to the activated carbon filter device 400. The activated carbon filter device 400 is connected to the reverse osmosis filtration unit. That is, the inlet of the coarse filtration unit 100 is connected to the tap water source, the outlet of the coarse filtration unit 100 is connected to the inlet of the ultrafiltration unit, the outlet of the ultrafiltration unit is connected to the inlet of the activated carbon filter device 400, and the outlet of the activated carbon filter device 400 is connected to the inlet of the reverse osmosis filtration unit.

[0031] Through this structural setting, during the working process of water treatment, tap water first enters the coarse filtration unit 100 for coarse filtration to remove large particles of impurities such as mud and sand. Then it enters the ultrafiltration unit to remove most of the small particles of mud and sand, suspended matter, colloids, bacteria and chloride ions. Then it enters the activated carbon filter device 400 to further remove the remaining chloride ions and organic matter. Finally, it enters the reverse osmosis filtration unit to remove the residual chloride ions and organic matter and other impurities in the tap water. As a result, the filtering effect of the water treatment system can be greatly improved, thereby improving the quality of pure water for food.

[0032] In one embodiment of the present invention, the ultrafiltration unit comprises a plurality of ultrafiltration tanks 210 arranged in parallel, wherein each ultrafiltration tank 210 may be provided with a detachable ultrafiltration membrane core.

[0033] The ultrafiltration unit further includes an ultrafiltration water storage tank 220 and a first booster pump 300. The outlet of each ultrafiltration tank body 210 is connected to the inlet of the ultrafiltration water storage tank 220. The outlet of the ultrafiltration water storage tank 220 is connected to the inlet of the first booster pump 300. The outlet of the first booster pump 300 is connected to the activated carbon filter device 400.

[0034] Further, in one embodiment of the present invention, the ultrafiltration unit includes a backwash pump 230 and a cleaning agent adding device 240. The inlet of the backwash pump 230 is connected to the outlet of the ultrafiltration water storage tank 220. The outlet of the backwash pump 230 and the cleaning agent adding device 240 are both connected to the inner cavity of the ultrafiltration tank body 210.

[0035] For example, the ultrafiltration unit includes a plurality of ultrafiltration tanks 210, each of which is arranged in parallel. The plurality of ultrafiltration tanks 210 arranged in parallel can work simultaneously to improve the water treatment efficiency. And each ultrafiltration tank 210 can be detachably installed with an ultrafiltration membrane core. When necessary, the ultrafiltration membrane core in the ultrafiltration tank 210 can be replaced independently, which solves the technical problem that the traditional ultrafiltration device needs to be replaced together with the shell as a whole. It has high safety, no dangerous source, can be reasonably involved and deployed according to the on-site situation, occupies a small area, and is conducive to later expansion. An ultrafiltration water storage tank 220 is arranged downstream of the ultrafiltration tank 210, and the water filtered by the ultrafiltration membrane core can be stored in the ultrafiltration water storage tank 220. The water in the ultrafiltration water storage tank 220 can be transported to the activated carbon filter device 400 for the next step of filtering treatment. At the same time, the ultrafiltration water storage tank 220 can also be connected to the ultrafiltration tank 210, and a backwash pump 230 is arranged between the two. Therefore, when it is necessary to backwash the ultrafiltration membrane core in the ultrafiltration tank body 210, the backwash pump 230 is turned on to allow the water in the ultrafiltration water storage tank 220 to be reversely input into the ultrafiltration tank body 210 and backwash the ultrafiltration membrane core. In addition, a cleaning agent adding device 240 can also be connected to the ultrafiltration tank body 210 to add cleaning agents to the ultrafiltration tank body 210 when necessary, and deeply clean the ultrafiltration tank body 210 and the ultrafiltration membrane core.

[0036] In one embodiment of the present invention, Figure 1 As shown, the reverse osmosis filtration unit includes a primary reverse osmosis filtration device 510 and a cleaning water storage tank 520. The outlet of the activated carbon filtration device 400 is connected to the inlet of the primary reverse osmosis filtration device 510. The outlet of the primary reverse osmosis filtration device 510 is connected to the inlet of the cleaning water storage tank 520.

[0037] In one embodiment of the present invention, Figure 1 As shown, the reverse osmosis filtration unit also includes a secondary reverse osmosis filtration device 540, a second booster pump 530 and a batching water storage tank 550. The inlet of the second booster pump 530 is connected to the outlet of the cleaning water storage tank 520. The outlet of the second booster pump 530 is connected to the inlet of the secondary reverse osmosis filtration device 540. The outlet of the secondary reverse osmosis filtration device 540 is connected to the inlet of the batching water storage tank 550.

[0038] Since the coarse filtration unit 100, the ultrafiltration unit and the activated carbon filtration device 400 are arranged between the primary reverse osmosis filtration device 510, the tap water before entering the primary reverse osmosis filtration device 510 can be filtered in multiple stages. Therefore, a finer reverse osmosis membrane can be used in the primary reverse osmosis filtration device 510, and the filtering effect can be improved as much as possible under the premise of ensuring that the primary reverse osmosis filtration device 510 is not blocked. The reverse osmosis membrane in the secondary reverse osmosis filtration device 540 is finer than the reverse osmosis membrane in the primary reverse osmosis filtration device 510.

[0039] Specifically, during the water treatment process, the water filtered by the activated carbon filter device 400 can enter the primary reverse osmosis filter device 510 for primary reverse osmosis filtration, and the water filtered by the primary reverse osmosis filter device 510 can be stored in the cleaning water storage tank 520. The water in the cleaning water storage tank 520 can enter the secondary reverse osmosis filter device 540 after the pressurization of the second booster pump 530, and the water filtered by the secondary reverse osmosis filter device 540 can enter the ingredient water storage tank 550 to be used for food processing. In this way, the quality of the water in the ingredient water storage tank 550 can be greatly improved.

[0040] The activated carbon filter device 400 can be an activated carbon rod filter, whose filter element is made of high-quality activated carbon as raw material and is formed by high-temperature baking. The carbon fiber filtration technology uses a carbon fiber filter element, which has the excellent adsorption performance of granular activated carbon and effectively overcomes the carbon powder leakage defect existing in the use of the activated carbon filter. The carbon fiber filter element has the precision filtration characteristics of a tubular element and can effectively remove organic matter, particles, rust, residual chlorine, odor, etc. in the liquid. The carbon fiber filter element has high filtration accuracy, small pressure loss, large flow rate, large pollution holding capacity, long service life, non-toxic and tasteless, no secondary pollution, strong adsorption capacity, high mechanical strength, uniform density, long service life, good dechlorination effect, and adopts standard carbon fiber sintering modules, integrated combination, easy replacement, and standardized production.

[0041] In one embodiment of the utility model, the reverse osmosis filtration unit further comprises a concentrated water reverse osmosis unit. A concentrated water diversion port is provided on the first-stage reverse osmosis filtration device. The concentrated water diversion port is connected to the inlet of the concentrated water reverse osmosis unit. The outlet of the concentrated water reverse osmosis unit is connected to the cleaning water storage tank 520.

[0042] In one embodiment of the present invention, Figure 1 As shown, the concentrate reverse osmosis unit includes a concentrate recovery tank 561 , a concentrate booster pump 562 and a concentrate reverse osmosis filtering device 563 .

[0043] The inlet of the concentrated water recovery tank 561 is connected to the concentrated water outlet. The outlet of the concentrated water recovery tank 561 is connected to the inlet of the concentrated water booster pump 562. The outlet of the concentrated water booster pump 562 is connected to the inlet of the concentrated water reverse osmosis filter 563. The outlet of the concentrated water reverse osmosis filter 563 is connected to the cleaning water storage tank 520.

[0044] After filtering by the primary reverse osmosis filter 510, concentrated water and clean water can be separated, and the clean water can be input and stored in the cleaning water storage tank 520. Concentrated water can be input into the concentrated water recovery tank. The concentrated water in the concentrated water storage tank is pressurized by the concentrated water booster pump 562 and then input into the concentrated water reverse osmosis filter 563 for re-filtration, and the filtered clean water can be input and stored in the cleaning water storage tank 520. In this way, the utilization rate of tap water can be improved.

[0045] In one embodiment of the present invention, Figure 1 As shown, the reverse osmosis filtration unit further includes a cleaning agent adding device 591. The cleaning agent adding device 591 is connected to the primary reverse osmosis filtration device 510 and the secondary reverse osmosis filtration device 540.

[0046] In another embodiment of the present invention, Figure 1 As shown, the reverse osmosis filtration unit further includes an antiscalant adding device 592. The antiscalant adding device 592 is connected to the primary reverse osmosis filtration device 510.

[0047] For example, a control valve is provided between the cleaning agent adding device 591 and the first-stage reverse osmosis filtration device 510, between the cleaning agent adding device 591 and the second-stage reverse osmosis filtration device 540, between the scale inhibitor adding device 592 and the first-stage reverse osmosis filtration device 510, and between the scale inhibitor adding device 592 and the second-stage reverse osmosis filtration device 540. When cleaning or descaling and antiscaling operations are required, the corresponding control valve is opened.

[0048] In one embodiment of the present invention, Figure 1 As shown, the water treatment system further includes a first water supply pump 571 , a second water supply pump 581 , a first ultraviolet sterilization device 572 and a second ultraviolet sterilization device 582 .

[0049] The outlet of the cleaning water storage tank 520 is connected to the inlet of the first water supply pump 571. The outlet of the first water supply pump 571 is connected to the first ultraviolet sterilizer 572. The outlet of the batching water storage tank 550 is connected to the inlet of the second water supply pump 581. The outlet of the second water supply pump 581 is connected to the second ultraviolet sterilizer 582. The first ultraviolet sterilizer 572 and the second ultraviolet sterilizer 582 are respectively connected to corresponding water supply lines.

[0050] In this embodiment, the water in the cleaning water storage tank 520 can not only be supplied to the secondary reverse osmosis filtration device 540 for further filtration, but also can be input to the first ultraviolet sterilization device 572 after being pressurized by the first water supply pump 571, and supplied to the corresponding water supply line after the disinfection and sterilization of the first ultraviolet sterilization device 572. The water supply line can be a cleaning water supply line. Using this part of water to clean related equipment can ensure that the equipment is not damaged by impurities and improve the cleaning effect. The pure water for ingredients that has been further filtered by the second reverse osmosis filtration device is stored in the ingredient water storage tank 550. The water in the ingredient water storage tank 550 can enter the second ultraviolet sterilization device 582 through the second water supply pump 581 for disinfection and sterilization, and then be supplied to the corresponding water supply line, which can be a food processing ingredient water line.

[0051] According to the above described embodiments, in the water treatment system, the reverse osmosis desalination of the reverse osmosis filtration unit is a physical process, which is more environmentally friendly and safer than the ion exchange method. At the same time, its treatment process is simple, easy to operate, highly automated, with little manual intervention, and simple system management and maintenance. Although the water utilization rate of reverse osmosis desalination is relatively low, the concentrated water discharged by reverse osmosis can be reused after deep treatment, or used as pre-treated backwash water. Especially when the raw water has a large salt content, the softener has a high operating cost in areas with high salt content, and the raw water has a high salt content and has little effect on the reverse osmosis operating cost. Compared with traditional water treatment technology, membrane treatment technology has the advantages of simple process, convenient operation, easy automatic control, no pollution, low operating cost, stable water quality, and more comprehensive desalination. Common raw water chloride exceeding the standard will cause irreversible corrosion to production equipment and pipelines, which may cause large economic losses and safety hazards. The traditional softener has a narrow desalination range and has no removal effect on chlorides, while membrane technology can remove them stably and efficiently. At the same time, the equipment in this water treatment system takes up less space, has better filtering effect, and is simple and convenient to operate and maintain. It is safer, has no dangerous sources, can be flexibly designed and reasonably deployed according to the site conditions, minimizes the space occupied, and can be expanded and increased in modules in the later stage.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A water treatment system, characterized in that: It comprises a coarse filtration unit (100), an ultrafiltration unit, an activated carbon filtration device (400) and a reverse osmosis filtration unit. The coarse filtration unit (100) is connected to the ultrafiltration unit, the ultrafiltration unit is connected to the activated carbon filtration device (400), and the activated carbon filtration device (400) is connected to the reverse osmosis filtration unit.

2. The water treatment system according to claim 1, characterized in that: The ultrafiltration unit comprises a plurality of ultrafiltration tanks (210) arranged in parallel, each of which has an ultrafiltration membrane core detachably installed therein. The ultrafiltration unit further comprises an ultrafiltration water storage tank (220) and a first booster pump (300), the outlet of each ultrafiltration tank body (210) is connected to the inlet of the ultrafiltration water storage tank (220), the outlet of the ultrafiltration water storage tank (220) is connected to the inlet of the first booster pump (300), and the outlet of the first booster pump (300) is connected to the activated carbon filtration device (400).

3. The water treatment system according to claim 2, characterized in that: The ultrafiltration unit comprises a backwash pump (230) and a cleaning agent adding device (240); the inlet of the backwash pump (230) is connected to the outlet of the ultrafiltration water storage tank (220); the outlet of the backwash pump (230) and the cleaning agent adding device (240) are both in communication with the inner cavity of the ultrafiltration tank body (210).

4. The water treatment system according to any one of claims 1 to 3, characterized in that: The reverse osmosis filtration unit comprises a primary reverse osmosis filtration device (510) and a cleaning water storage tank (520), the outlet of the activated carbon filtration device (400) is connected to the inlet of the primary reverse osmosis filtration device (510), and the outlet of the primary reverse osmosis filtration device (510) is connected to the inlet of the cleaning water storage tank (520).

5. The water treatment system according to claim 4, characterized in that: The reverse osmosis filtration unit further comprises a secondary reverse osmosis filtration device (540), a second booster pump (530) and a batching water storage tank (550), wherein the inlet of the second booster pump (530) is connected to the outlet of the cleaning water storage tank (520), the outlet of the second booster pump (530) is connected to the inlet of the secondary reverse osmosis filtration device (540), and the outlet of the secondary reverse osmosis filtration device (540) is connected to the inlet of the batching water storage tank (550).

6. The water treatment system according to claim 5, characterized in that: The reverse osmosis filtration unit also includes a concentrate reverse osmosis unit. The primary reverse osmosis filtration device (510) is provided with a concentrate diversion port, the concentrate diversion port is connected to the inlet of the concentrate reverse osmosis unit, and the outlet of the concentrate reverse osmosis unit is connected to the cleaning water storage tank (520).

7. The water treatment system according to claim 6, characterized in that: The concentrated water reverse osmosis unit comprises a concentrated water recovery tank (561), a concentrated water booster pump (562) and a concentrated water reverse osmosis filtering device (563). Among them, the inlet of the concentrated water recovery tank (561) is connected to the concentrated water diversion port, the outlet of the concentrated water recovery tank (561) is connected to the inlet of the concentrated water booster pump (562), the outlet of the concentrated water booster pump (562) is connected to the inlet of the concentrated water reverse osmosis filtration device (563), and the outlet of the concentrated water reverse osmosis filtration device (563) is connected to the cleaning water storage tank (520).

8. The water treatment system according to claim 5, characterized in that: The reverse osmosis filtration unit further comprises a cleaning agent adding device (591), and the cleaning agent adding device (591) is connected to the primary reverse osmosis filtration device (510) and the secondary reverse osmosis filtration device (540).

9. The water treatment system according to claim 5, characterized in that: The reverse osmosis filtration unit further comprises an antiscalant adding device (592), and the antiscalant adding device (592) is connected to the primary reverse osmosis filtration device (510).

10. The water treatment system according to claim 5, characterized in that: The water treatment system further comprises a first water supply pump (571), a second water supply pump (581), a first ultraviolet sterilization device (572) and a second ultraviolet sterilization device (582). The outlet of the cleaning water storage tank (520) is connected to the inlet of the first water supply pump (571), the outlet of the first water supply pump (571) is connected to the first ultraviolet sterilization device (572), the outlet of the batching water storage tank (550) is connected to the inlet of the second water supply pump (581), the outlet of the second water supply pump (581) is connected to the second ultraviolet sterilization device (582), and the first ultraviolet sterilization device (572) and the second ultraviolet sterilization device (582) are respectively connected to corresponding water supply lines.

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