A reverse osmosis treatment device, control method, and control device

Abstract

The present disclosure provides a reverse osmosis treatment device, a control method and a control device, the reverse osmosis treatment device comprising a first filter and a reverse osmosis membrane assembly connected by a first pipeline, a high-pressure pump being arranged between the first filter and the reverse osmosis membrane assembly, the reverse osmosis membrane assembly having a pure water outlet and a concentrated water outlet, the pure water outlet being connected with a water tank, the concentrated water outlet being connected with a water inlet of the high-pressure pump through a second pipeline, a first regulating valve, a concentrated water flow meter, a second filter and a first control valve being arranged on the second pipeline. The embodiment of the present disclosure can improve the recovery rate of the reverse osmosis treatment device, realize the reuse of the reverse osmosis concentrated water, and when the reverse osmosis water inlet amount is insufficient, the water inlet amount and the reverse osmosis membrane surface flow rate of the reverse osmosis membrane can be improved through the reuse of the reverse osmosis concentrated water, so that the zero-emission production under the well can be realized and no waste water is generated, and the maximization of water resources is realized to avoid the problem of water resource waste.

Description

Technical Field

[0001] This disclosure relates to the technical field of water resource utilization, and more specifically, to a reverse osmosis treatment device, control method, and control device. Background Technology

[0002] The hydraulic system of a fully mechanized mining face is crucial for the safety of the entire face. Emulsion, as the transmission medium of the hydraulic system, plays a vital role in power transmission, lubrication, and corrosion prevention. The quality of the water used for emulsion preparation directly affects the quality of the emulsion, thus impacting the working efficiency and lifespan of the entire hydraulic system. Poor water quality in emulsion preparation can not only cause emulsion precipitation but also lead to blockages and corrosion of critical components such as control valves, supports, and jacks, severely affecting the safe operation of the working face. Using a reverse osmosis device to purify the water used for emulsion preparation can effectively prevent this problem.

[0003] However, the reverse osmosis concentrate produced in existing downhole reverse osmosis water treatment devices is basically not reused, but is directly discharged. This concentrate treatment and utilization mode causes a huge waste of water resources. At the same time, the high salt content of the discharged reverse osmosis concentrate will cause scaling, corrosion and other hazards to the system pipelines. Summary of the Invention

[0004] In view of this, the present disclosure aims to provide a reverse osmosis treatment apparatus, control method and control device to solve the technical problem that the prior art cannot reuse concentrated water, resulting in a great waste of water resources.

[0005] One aspect of this disclosure provides a reverse osmosis treatment device, including a first filter and a reverse osmosis membrane assembly connected by a first pipeline, a high-pressure pump disposed between the first filter and the reverse osmosis membrane assembly, the reverse osmosis membrane assembly having a pure water outlet and a concentrate outlet, the pure water outlet being connected to a water tank, and the concentrate outlet being connected to the inlet of the high-pressure pump via a second pipeline, the second pipeline being sequentially provided with a first regulating valve, a concentrate flow meter, a second filter, and a first control valve.

[0006] In some embodiments, the filtration accuracy of the first filter is 3-5 μm.

[0007] In some embodiments, the first regulating valve adjusts the amount of concentrate formed by the reverse osmosis membrane module, and the ratio of the concentrate amount to the pure water amount after adjustment by the first regulating valve is 0.1-0.6.

[0008] In some embodiments, the filtration accuracy of the second filter is 0.1-1 μm.

[0009] In some embodiments, a third pipeline is provided between the outlet of the second filter and the inlet of the high-pressure pump, and an ion exchange device and a second control valve are provided on the third pipeline.

[0010] In some embodiments, the outlet of the second filter is connected to a drain pipe, and a second regulating valve is provided on the drain pipe.

[0011] In some embodiments, a conductivity sensor is provided between the second filter and the first control valve to detect the conductivity of the concentrate in the second pipeline.

[0012] Another aspect of this disclosure provides a control method for a reverse osmosis treatment apparatus, which employs the reverse osmosis treatment apparatus described in any of the preceding claims, including...

[0013] When the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be less than a preset threshold, the second control valve is closed and the first control valve is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump through the first control valve.

[0014] In some embodiments, it also includes:

[0015] When the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be greater than or equal to the preset threshold, the second control valve is opened and the first control valve is closed, so that the concentrate treated by reverse osmosis first passes through the ion exchange device to reduce the water hardness, and then flows back to the inlet of the high-pressure pump.

[0016] Another aspect of this disclosure provides a control device for a reverse osmosis treatment apparatus, comprising:

[0017] The first control module is used to control the second control valve to close and the first control valve to open when the conductivity of the concentrate in the second pipeline is less than a preset threshold detected by the conductivity sensor, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump through the first control valve.

[0018] The second control module is used to control the second control valve to open and the first control valve to close when the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be greater than or equal to a preset threshold. This allows the concentrate treated by reverse osmosis to first pass through the ion exchange device to reduce water hardness before flowing back to the inlet of the high-pressure pump.

[0019] The embodiments disclosed herein can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water volume and flow velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, thereby maximizing water resources and avoiding water waste.

[0020] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method. The accompanying drawings, which are provided to further understand this disclosure and form part of this application, are used to explain the illustrative embodiments of this disclosure and do not constitute an undue limitation of this disclosure. In the drawings:

[0022] Figure 1 This is a schematic diagram of the layout of the reverse osmosis treatment apparatus provided in this disclosure;

[0023] Figure 2 This is a schematic diagram of the steps of the control method for the reverse osmosis treatment apparatus provided in this disclosure.

[0024] The above figures include the following reference numerals:

[0025] 1-First filter; 2-High pressure pump; 3-Reverse osmosis membrane module; 4-Water tank; 5-First regulating valve; 6-Second filter; 7-Conductivity sensor; 8-First control valve; 9-Second control valve; 10-First pipeline; 11-Ion exchange device; 12-Concentrate flow meter; 20-Second pipeline; 30-Third pipeline. Detailed Implementation

[0026] The specific embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of this disclosure.

[0027] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this disclosure will be apparent to those skilled in the art.

[0028] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0029] These and other features of this disclosure will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0030] It should also be understood that although this disclosure has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this disclosure, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0031] The above and other aspects, features and advantages of this disclosure will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0032] Specific embodiments of the present disclosure are described thereafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure and can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present disclosure. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of substantially any suitable detailed structures.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0035] The first embodiment of this disclosure provides a reverse osmosis treatment device suitable for water with a raw water hardness of less than 1000 mg / L. For example... Figure 1As shown, the reverse osmosis treatment device includes a first filter 1 and a reverse osmosis membrane assembly 3 connected by a first pipeline 10, wherein a high-pressure pump 2 is provided between the first filter 1 and the reverse osmosis membrane assembly 3; the reverse osmosis membrane assembly 3 has a pure water outlet and a concentrated water outlet, the pure water outlet is connected to a water tank 4, and the concentrated water outlet is connected to the inlet of the high-pressure pump 2 through a second pipeline 20.

[0036] Specifically, the inlet of the first filter 1 is connected to an external inlet pipe, and the outlet of the first filter 1 is connected to the inlet of the high-pressure pump 2. The first filter 1 filters the concentrated water entering the first pipe 10 to ensure that the downstream reverse osmosis membrane module 3 meets the requirements for the quality of the feed water. The filtration accuracy of the first filter 1 is preferably 3-5 μm.

[0037] Furthermore, after the high-pressure pump 2 pressurizes the inlet water, the pressure of the inlet water reaches the requirement of the reverse osmosis membrane module 3. The inlet water passing through the first filter 1 then enters the reverse osmosis membrane module 3 for reverse osmosis treatment. Here, through the reverse osmosis treatment of the inlet water by the reverse osmosis membrane module 3, pollutants such as salt and organic matter in the inlet water can be deeply removed to obtain pure water. The pure water after reverse osmosis treatment enters the water tank 4 through the pure water outlet for storage.

[0038] Furthermore, the concentrate outlet of the reverse osmosis membrane module 3 is connected to the inlet of the high-pressure pump 2 via the second pipeline 20 to realize the recycling of the concentrate from the reverse osmosis treatment, thereby improving the recovery rate of the reverse osmosis device.

[0039] Specifically, the second pipeline 20 is sequentially equipped with a first regulating valve 5, a concentrate flow meter 12, a second filter 6, and a first control valve 8. Here, the concentrate from the reverse osmosis membrane module 3 is transported to the second pipeline 20 for further filtration and then returned to the first pipeline 10 for reuse. Furthermore, when the amount of pure water to be treated by the reverse osmosis membrane module 3 is insufficient, the reuse of concentrate increases the feed water flow to the reverse osmosis membrane module 3 and the flow velocity at the reverse osmosis membrane surface, thereby achieving a better reverse osmosis treatment effect.

[0040] Specifically, the concentration of the concentrate formed by the reverse osmosis membrane module 3 is adjusted by the first regulating valve 5, wherein the ratio of the concentrate to the pure water after adjustment by the first regulating valve 5 is 0.1-0.6. Furthermore, the concentrate flow rate entering the second pipeline 20 is determined by the concentrate flow meter 12.

[0041] The concentrated water entering the second pipeline 20 is filtered again by the second filter 6, which further removes particulate matter from the concentrated water. The second filter 6 can achieve fine filtration compared to the first filter 1, with a filtration accuracy of 0.1-1μm.

[0042] Furthermore, a conductivity sensor 7 is installed between the second filter 6 and the first control valve 8. The concentrated water filtered by the second filter 6 is subjected to conductivity detection by the conductivity sensor 7. Here, the hardness value of the concentrated water is mainly determined by the conductivity detection, so that different treatments can be performed on the concentrated water based on the hardness value.

[0043] Furthermore, a third pipeline 30 is provided between the outlet of the second filter 6 and the inlet of the high-pressure pump 2. An ion exchange device 11 and a second control valve 9 are installed on the third pipeline 30. Here, when the hardness value of the concentrate in the second pipeline 20 does not meet the hardness requirements, the ion exchange device 11 is used to treat the hardness of the concentrate, and the treated concentrate is then returned to the first pipeline 10. In this way, by analyzing the quality of the concentrate and selecting different return pipelines, the impact of reused reverse osmosis concentrate on the reverse osmosis membrane can be reduced through differentiated treatment.

[0044] In addition, the outlet of the second filter 6 is connected to a drain pipe, and a second regulating valve is installed on the drain pipe to achieve the discharge of part of the reverse osmosis concentrate.

[0045] Specifically, when the conductivity of the concentrate in the second pipeline 20 is less than a preset threshold as detected by the conductivity sensor 7, the second control valve 9 is closed and the first control valve 8 is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump 2 through the first control valve 8 to achieve further utilization of the concentrate.

[0046] When the conductivity value of the concentrate in the second pipeline 20 is detected by the conductivity sensor 7 to be greater than or equal to a preset threshold, the second control valve 9 is controlled to open and the first control valve 8 is controlled to close. At this time, the concentrate treated by reverse osmosis first passes through the hardness treatment of the ion exchange device 10. For example, after the hardness value of the concentrate is reduced to the preset hardness threshold, it flows back to the inlet of the high-pressure pump 2 on the first pipeline 10 to realize further utilization of the concentrate.

[0047] The embodiments disclosed herein can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water volume and flow velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, thereby maximizing water resources and avoiding water waste.

[0048] Based on the same inventive concept, a second embodiment of this disclosure provides a reverse osmosis treatment method, which employs the reverse osmosis treatment apparatus of the above embodiments, and can be implemented by a controller, such as... Figure 2 As shown, the reverse osmosis treatment method includes:

[0049] S101, when the conductivity of the concentrate in the second pipeline is less than a preset threshold as detected by the conductivity sensor, the second control valve is closed and the first control valve is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump through the first control valve.

[0050] Specifically, when the conductivity of the concentrate in the second pipeline 20 is less than a preset threshold as detected by the conductivity sensor 7, that is, when the hardness of the concentrate meets the requirements, the second control valve 9 is closed and the first control valve 8 is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump 2 through the first control valve 8 to achieve further utilization of the concentrate.

[0051] S102, when the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be greater than or equal to the preset threshold, the second control valve is opened and the first control valve is closed, so that the concentrate treated by reverse osmosis first passes through the ion exchange device to reduce the water hardness, and then flows back to the inlet of the high-pressure pump.

[0052] Specifically, when the conductivity sensor 7 detects that the conductivity value of the concentrate in the second pipeline 20 is greater than or equal to a preset threshold, that is, when the hardness value of the concentrate does not meet the requirements, it controls the second control valve 9 to open and controls the first control valve 8 to close. At this time, the concentrate treated by reverse osmosis first passes through the ion exchange device 10 for hardness treatment. For example, after the hardness value of the concentrate is reduced to the preset hardness threshold, it flows back to the inlet of the high-pressure pump 2 on the first pipeline 10 to achieve further utilization of the concentrate.

[0053] This disclosed embodiment can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water flow and membrane surface velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, maximizing water resources and avoiding water waste.

[0054] Based on the same inventive concept, a third embodiment of this disclosure provides a control device for reverse osmosis treatment, the reverse osmosis treatment device comprising:

[0055] The first control module is used to control the second control valve to close and the first control valve to open when the conductivity of the concentrate in the second pipeline is less than a preset threshold detected by the conductivity sensor, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump through the first control valve.

[0056] Furthermore, it also includes:

[0057] The second control module is used to control the second control valve to open and the first control valve to close when the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be greater than or equal to a preset threshold. This allows the concentrate treated by reverse osmosis to first pass through the ion exchange device to reduce water hardness before flowing back to the inlet of the high-pressure pump.

[0058] The embodiments disclosed herein can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water volume and flow velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, thereby maximizing water resources and avoiding water waste.

[0059] Based on the same inventive concept, the fourth embodiment of this disclosure provides a storage medium, which is a computer-readable medium storing a computer program that, when executed by a processor, implements the method provided in the second embodiment of this disclosure.

[0060] The embodiments disclosed herein can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water volume and flow velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, thereby maximizing water resources and avoiding water waste.

[0061] Based on the same inventive concept, the fifth embodiment of this disclosure provides an electronic device. This electronic device mainly includes: a memory and a processor. The number of processors can be one or more. The memory stores a computer program that can run on the processor. The memory and the processor are communicatively connected. When the processor executes the computer program, it implements the aforementioned control method flow.

[0062] The embodiments disclosed herein can improve the recovery rate of the reverse osmosis treatment device and realize the reuse of reverse osmosis concentrate. When the reverse osmosis feed water is insufficient, the feed water volume and flow velocity of the reverse osmosis membrane can be increased by reusing the reverse osmosis concentrate. This can achieve zero-discharge production downhole and no wastewater generation, thereby maximizing water resources and avoiding water waste.

[0063] The aforementioned storage medium may be included in the aforementioned electronic device; or it may exist independently and not be assembled into the electronic device.

[0064] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including but not limited to object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the passenger's computer, partially on the passenger's computer, as a standalone software package, partially on the passenger's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer can be connected to the passenger's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0065] It should be noted that the storage medium described above in this disclosure can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, characterized by carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any storage medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the storage medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0066] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0067] The units described in the embodiments of this disclosure can be implemented in software or in hardware. It is characterized in that the name of a unit does not, in certain circumstances, constitute a limitation on the unit itself.

[0068] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0069] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0070] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0071] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0072] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0073] The foregoing has provided a detailed description of several embodiments of the present disclosure. However, the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of the present disclosure, and all such variations and modifications should fall within the scope of protection claimed by the present disclosure.

[0074] In the above embodiments of this disclosure, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0075] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0076] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this disclosure.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A reverse osmosis treatment device, characterized in that, The system includes a first filter and a reverse osmosis membrane assembly connected by a first pipeline. A high-pressure pump is installed between the first filter and the reverse osmosis membrane assembly. The reverse osmosis membrane assembly has a pure water outlet and a concentrate outlet. The pure water outlet is connected to a water tank, and the concentrate outlet is connected to the inlet of the high-pressure pump via a second pipeline. The second pipeline is equipped with a first regulating valve, a concentrate flow meter, a second filter, and a first control valve. A third pipeline is installed between the outlet of the second filter and the inlet of the high-pressure pump. The third pipeline is equipped with an ion exchange device and a second control valve. A conductivity sensor is installed between the second filter and the first control valve. The conductivity sensor monitors the second pipeline. The conductivity of the concentrate in the second pipeline is detected. When the conductivity of the concentrate in the second pipeline is less than a preset threshold, the second control valve is closed and the first control valve is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump. When the conductivity of the concentrate in the second pipeline is greater than or equal to the preset threshold, the second control valve is opened and the first control valve is closed, so that the concentrate treated by reverse osmosis first passes through the ion exchange device to reduce water hardness, and then flows back to the inlet of the high-pressure pump. The first regulating valve adjusts the amount of concentrate formed by the reverse osmosis membrane module. The ratio of the amount of concentrate to the amount of pure water after adjustment by the first regulating valve is 0.1-0.

6.

2. The reverse osmosis treatment apparatus according to claim 1, characterized in that, The filtration accuracy of the first filter is 3-5 μm.

3. The reverse osmosis treatment apparatus according to claim 1, characterized in that, The filtration accuracy of the second filter is 0.1-1μm.

4. The reverse osmosis treatment apparatus according to claim 1, characterized in that, The outlet of the second filter is connected to a drain pipe, and a second regulating valve is installed on the drain pipe.

5. A control method for a reverse osmosis treatment device, which employs the reverse osmosis treatment device according to any one of claims 1-4, characterized in that, include When the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be less than the preset threshold, the second control valve is closed and the first control valve is opened, so that the concentrate treated by reverse osmosis flows back to the inlet of the high-pressure pump through the first control valve. When the conductivity of the concentrate in the second pipeline is detected by the conductivity sensor to be greater than or equal to the preset threshold, the second control valve is opened and the first control valve is closed, so that the concentrate treated by reverse osmosis first passes through the ion exchange device to reduce the water hardness, and then flows back to the inlet of the high-pressure pump.

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