RO membrane thickener convenient to clean

Abstract

The utility model provides an RO (Reverse Osmosis) membrane concentrator convenient to clean, which comprises a machine body and is characterized by further comprising a liquid inlet unit, a liquid outlet unit and a water outlet unit, the separation structure comprises a high-pressure pump and an RO membrane unit, and the high-pressure pump is used for separating the stock solution; the cleaning structure comprises an ultrasonic cleaning assembly and a control system, and the control system is used for controlling the ultrasonic cleaning assembly to clean the RO membrane unit; the micro-vibration device comprises a vibration generation structure and a vibration transmission assembly; the vibration generation structure generates vibration and transmits the vibration to the RO membrane unit through the vibration transmission assembly to drive the RO membrane unit to vibrate; and the energy recovery unit can recover the pressure of the concentrated solution. Through the ultrasonic cleaning device, the micro-vibration device, the energy recovery unit and other structures, the separation efficiency, the cleaning effect and the energy utilization rate of the RO membrane thickener are remarkably improved, meanwhile, the operation cost and the environmental influence are reduced, and the RO membrane thickener has high practicability and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of RO membrane concentration, and in particular to an RO membrane concentration machine that is easy to clean. Background Technology

[0002] Reverse osmosis (RO) technology is a water treatment technology based on the principle of semi-permeable membrane separation, widely used in seawater desalination, industrial wastewater treatment, drinking water purification, and pharmaceutical preparation. Its core principle is to pressurize the feed solution using a high-pressure pump, forcing it through the RO membrane unit. Utilizing the membrane's selective permeation characteristics, a pure permeate and a highly concentrated concentrate are separated. Due to its high efficiency, environmental friendliness, and ease of operation, RO technology has become an important technological means in the modern water treatment field.

[0003] In existing technologies, regardless of the pressure used to drive the feed solution through the RO membrane for separation, a significant amount of energy is typically consumed, and the pressure of the concentrate is often not effectively recovered. Even with pressure recovery devices, the RO membrane remains susceptible to fouling during operation. Current cleaning methods primarily rely on cleaning solutions, but these consume large quantities, leading to resource waste and environmental problems. Furthermore, the cleaning effect is often insufficient or inadequate. Therefore, there is an urgent need for an RO membrane concentrator that can effectively address these issues. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an RO membrane concentrator that is easy to clean, in view of the above-mentioned defects in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] An easy-to-clean RO membrane concentrator includes a body, characterized in that it further includes a liquid inlet unit for supplying raw liquid into the body and filtering it;

[0007] A separation structure is provided in the liquid inlet unit, including a high-pressure pump and an RO membrane unit. The RO membrane unit is connected to the high-pressure pump, which is used to separate the raw liquid to form permeate that has passed through the RO membrane unit and a concentrated liquid that has been retained.

[0008] A cleaning structure is provided in the RO membrane unit, including an ultrasonic cleaning assembly and a control system. The control system is used to control the ultrasonic cleaning assembly to clean the RO membrane unit.

[0009] A micro-vibration device is provided in the liquid inlet unit, including a vibration generating structure and a vibration transmission component. The vibration generating structure generates vibration and transmits it to the RO membrane unit through the vibration transmission component to drive it to vibrate.

[0010] An energy recovery unit is located between the RO membrane unit and the high-pressure pump, and is capable of recovering and storing the pressure of the concentrate.

[0011] Preferably, the vibration transmission assembly includes a flexible connector, a vibration distribution plate, and a membrane support mesh connected in sequence. The end of the flexible connector is connected to the vibration generation structure, and the membrane support mesh is disposed on the back side of the RO membrane unit, wherein the back side refers to the non-filtration side.

[0012] Preferably, the vibration generating structure includes a vibration control structure and a driver. The driver is used to generate micro-vibrations, and the vibration control structure is disposed on the driver to control the start, stop, and amplitude of the vibration.

[0013] Preferably, the vibration generating structure is further provided with a vibration energy recovery device for recovering vibration energy. The vibration energy recovery device includes a piezoelectric component and an energy harvesting circuit. The piezoelectric component converts vibration mechanical energy into electrical energy, and the energy harvesting circuit stores and recovers the converted electrical energy.

[0014] Preferably, the ultrasonic cleaning assembly includes an ultrasonic generator and an ultrasonic transducer. The ultrasonic generator is used to generate a high-frequency electrical signal, and the ultrasonic transducer is used to convert the high-frequency electrical signal into mechanical vibration, and clean the RO membrane unit through the vibration wave.

[0015] Preferably, the control system includes a cleaning frequency adjustment module and a cleaning time control module. The cleaning frequency adjustment module is used to control the vibration frequency of the ultrasonic cleaning component, and the cleaning time control module is able to control the cleaning time of the ultrasonic cleaning component.

[0016] Preferably, the control system further includes a cleaning fluid circulation module, which is used to deliver the cleaning fluid to the RO membrane unit to work together with the ultrasonic cleaning component to perform cleaning operations, and to recover the liquid back into the module after cleaning is completed.

[0017] Preferably, the energy recovery unit includes a pressure exchanger and an energy storage device. The pressure exchanger is used to convert the pressure energy of the concentrate into mechanical energy, and the energy storage device is used to store the mechanical energy and feed it back to the high-pressure pump.

[0018] Preferably, the energy recovery unit further includes a pressure regulating valve and a flow control valve, wherein the pressure regulating valve is used to regulate the pressure of the concentrate, and the flow control valve is used to control the flow rate of the concentrate.

[0019] Preferably, the liquid inlet unit includes a raw liquid storage tank and a liquid inlet pipe. The raw liquid storage tank is used to store the raw liquid, and the liquid inlet pipe is equipped with a valve body and a filter, which is used to filter the raw liquid.

[0020] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0021] By combining a high-pressure pump and an RO membrane unit, the feed solution can be efficiently separated into permeate and concentrate, improving separation efficiency. The filter in the feed unit pre-treats the feed solution, reducing the load on the RO membrane unit and extending its service life.

[0022] The ultrasonic cleaning unit generates high-frequency vibrations through an ultrasonic generator and transducer, effectively cleaning the RO membrane unit and preventing membrane fouling and clogging. The cleaning frequency adjustment module and cleaning time control module in the control system precisely control the cleaning process, improving cleaning effectiveness and saving energy. The cleaning fluid circulation module recycles the cleaning fluid, reducing waste and lowering operating costs.

[0023] The micro-vibration device transmits micro-vibrations to the RO membrane unit through a vibration generation structure and vibration transmission components, preventing fouling and clogging on the membrane surface and improving membrane flux and lifespan. The vibration energy recovery device converts vibration energy into electrical energy and stores it, achieving energy recovery and utilization, and improving equipment energy efficiency. The energy recovery unit reduces energy waste and lowers operating costs.

[0024] Each unit (liquid inlet unit, separation structure, cleaning structure, micro-vibration device, and energy recovery unit) adopts a modular design, facilitating equipment maintenance and upgrades, and improving the equipment's operability and flexibility. Through the design of the energy recovery unit and vibration energy recovery device, efficient energy recovery and utilization are achieved, reducing energy consumption and meeting energy conservation and environmental protection requirements.

[0025] This invention significantly improves the separation efficiency, cleaning effect, and energy utilization of RO membrane concentrators through innovative designs such as high-efficiency separation and filtration, ultrasonic cleaning, micro-vibration device, and energy recovery unit, while reducing operating costs and environmental impact, making it highly practical and economical. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an RO membrane concentrator that is easy to clean according to the present invention;

[0027] Figure 2 This is a schematic diagram of a micro-vibration device for an RO membrane concentrator that is easy to clean, according to this utility model.

[0028] Figure 3 This is a schematic diagram of the cleaning structure of an RO membrane concentrator that is easy to clean according to the present invention;

[0029] Figure 4 This is a schematic diagram of the ultrasonic cleaning component and RO membrane unit of an RO membrane concentrator that is easy to clean according to the present invention.

[0030] Figure 5 This is a block diagram illustrating the cleaning structure of an RO membrane concentrator that is easy to clean, according to this utility model.

[0031] Figure 6 This is a block diagram of a micro-vibration device for an RO membrane concentrator that is easy to clean, according to this utility model.

[0032] Figure 7 This is a schematic diagram showing the connection between the flexible connector and the vibration distribution plate of an RO membrane concentrator that is easy to clean according to this utility model.

[0033] The attached figures are labeled as follows: 1. Body; 2. Liquid inlet unit; 201. Raw material storage tank; 202. Liquid inlet pipe; 203. Valve body; 204. Filter; 3. Separation structure; 301. High-pressure pump; 302. RO membrane unit; 4. Cleaning structure; 401. Ultrasonic cleaning assembly; 402. Control system; 403. Ultrasonic generator; 404. Ultrasonic transducer; 405. Cleaning frequency adjustment module; 406. Cleaning time control module; 407. Cleaning fluid circulation... 5. Ring module; 501. Micro-vibration device; 502. Vibration generation structure; 503. Vibration transmission component; 504. Flexible connector; 505. Vibration distribution plate; 506. Membrane support net; 507. Vibration control structure; 508. Driver; 509. Vibration energy recovery device; 510. Piezoelectric component; 6. Energy harvesting circuit; 601. Energy recovery unit; 602. Pressure exchanger; 603. Energy storage device; 604. Pressure regulating valve; 605. Flow control valve. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1

[0037] As attached Figures 1 to 7 The RO membrane concentrator shown includes a body 1, characterized in that it further includes a liquid inlet unit 2, which allows the raw liquid to enter the body 1 and filter it;

[0038] Separation structure 3 is provided in the liquid inlet unit 2, including a high-pressure pump 301 and an RO membrane unit 302. The RO membrane unit 302 is connected to the high-pressure pump 301. The high-pressure pump 301 is used to separate the raw liquid to form permeate that passes through the RO membrane unit 302 and concentrated liquid that is retained.

[0039] The cleaning structure 4 is disposed in the RO membrane unit 302 and includes an ultrasonic cleaning component 401 and a control system 402. The control system 402 is used to control the ultrasonic cleaning component 401 to clean the RO membrane unit 302.

[0040] A micro-vibration device 5 is disposed in the liquid inlet unit 2, including a vibration generating structure 501 and a vibration transmission component 502. The vibration generating structure 501 generates vibration and transmits it to the RO membrane unit 302 through the vibration transmission component 502 to drive it to vibrate.

[0041] The energy recovery unit 6 is located between the RO membrane unit 302 and the high-pressure pump 301, and can recover and store the pressure of the concentrate.

[0042] Among them, the main body 1 is a high-efficiency water treatment system that integrates filtration, separation, cleaning and energy recovery. Its core function is to achieve high-efficiency filtration, separation, cleaning and energy recovery of the raw liquid through the coordinated work of the liquid inlet unit 2, separation structure 3, cleaning structure 4, micro-vibration device 5 and energy recovery unit 6.

[0043] A walking mechanism is installed at the bottom of the machine body 1. The walking mechanism includes a support frame and a set of wheels. The support frame supports the machine body 1, and multiple sets of wheels are located on the bottom side and center of the support frame. The walking mechanism adjusts the position of the machine body 1 by rolling. A display screen is installed on the side of the machine body 1. The display screen can monitor the operating status and parameters of the separation structure 3, cleaning structure 4, micro-vibration device 5, and energy recovery unit 6. The display screen is equipped with function touch buttons for adjusting the above structures.

[0044] The liquid inlet unit 2 includes a raw liquid tank, an inlet pipe, and a filtration structure. The inlet pipe is located at the top of the raw liquid tank, allowing the raw liquid to enter the tank from the top. A sealing cap is provided at the inlet pipe opening to seal the pipe and prevent foreign objects from entering and contaminating the raw liquid tank. A flow valve is also provided at the inlet pipe to control the flow rate and volume of the raw liquid entering the tank. The filtration structure includes a shell, a filter medium, and a pressure monitoring device. The filter medium and pressure monitoring device are located inside the shell, which is made of corrosion-resistant material. Flanges or quick connectors are used at both ends to ensure sealing and prevent raw liquid leakage. The filter medium is a filter screen or filter element. The filter screen is made of stainless steel or nylon, and the mesh diameter is selected according to the required filtration precision. The filter element adopts a multi-layer filter element structure, including a pre-filtration layer and a fine filtration layer. Different precision filter elements are selected according to the particle size distribution of impurities in the raw liquid. Both the filter element and the filter screen are detachable for easy periodic cleaning or replacement. The pressure monitoring device can monitor the pressure difference between the inlet and outlet of the filter in real time, determine whether the filter medium is blocked, and issue an alarm signal when the pressure exceeds the set value, prompting personnel to replace or clean the filter medium.

[0045] The bottom of the raw liquid tank is equipped with a collection tank for collecting permeate. When the permeate is the target substance, a discharge structure is provided on the side of the collection tank to discharge the permeate for collection by personnel. The high-pressure pump 301 can provide high pressure to the raw liquid to overcome the osmotic pressure of the RO membrane unit 302, thereby achieving efficient separation. The RO membrane unit 302 selects different types of membranes according to the type of raw liquid. The membranes include corrosion-resistant membranes, membranes with antibacterial coatings, and antifouling membranes to improve the separation effect of the raw liquid.

[0046] The cleaning structure 4 is used to clean the RO membrane unit 302 to remove dirt and impurities, preventing them from affecting the separation of the original solution by the RO membrane unit 302. The ultrasonic cleaning component 401 includes an ultrasonic structure and a cleaning fluid circulation structure. The cleaning fluid circulation structure allows the cleaning fluid to be recycled for cleaning the RO membrane unit 302. The ultrasonic structure assists the cleaning fluid in cleaning the RO membrane unit 302. The ultrasonic structure can improve cleaning efficiency and reduce the amount of cleaning fluid used, avoiding resource waste and making it more environmentally friendly. The control system 402 is operated by personnel, and the cleaning time and duration can be set, and the status and parameters of each structure of the ultrasonic cleaning component 401 can be controlled.

[0047] The vibration generating structure 501 is located on the inner wall of the raw liquid tank. The vibration generating structure 501 includes a driver 507 and a vibration control structure 506. The driver 507 is an electronic control device. The driver 507 includes a fixed end and a vibrating end. The fixed end is used to support the overall structure. The vibrating end is energized to vibrate. The vibration control structure 506 is used to control the start and stop of the vibration of the driver 507 and the vibration amplitude. The vibration control structure 506 is operated by personnel to view and adjust vibration amplitude parameters, etc. The driver 507 is equipped with different types of structures to be selected according to different amplitudes, thereby improving the cleaning effect on the RO membrane unit 302. The vibrating RO membrane unit 302 can shake off some dirt or impurities.

[0048] The vibration transmission component 502 includes a flexible connection part and a fixed part. The flexible connection part is located between the fixed part and the vibration generating structure 501 as a connector, and transmits the mechanical energy of the vibration to the fixed part. The flexible connection part is made of a highly elastic and fatigue-resistant material, which can flexibly transmit the mechanical energy of the vibration of the driver 507 to the fixed part, avoiding damage to the RO membrane unit 302. The fixed part can support and fix the RO membrane unit 302 on the one hand, and make the mechanical energy evenly distributed in the RO membrane unit 302 on the other hand, thereby improving the cleaning effect of the RO membrane unit 302.

[0049] The energy recovery unit 6 can convert the pressure of the concentrate into mechanical energy, electrical energy or fluid kinetic energy. It can convert the concentrate into mechanical energy through the pressure exchanger 601 or the hydraulic motor. The turbine energy recovery device can use the pressure to drive the turbine to rotate, drive the generator to generate electricity, and thus convert it into electrical energy. The pressure of the concentrate can be directly transferred to the original liquid and converted into the kinetic energy of the original liquid, thereby reducing the load on the high-pressure pump 301.

[0050] Example 2

[0051] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 7 As shown below, see details:

[0052] In a preferred embodiment, the vibration transmission assembly 502 includes a flexible connector 503, a vibration distribution plate 504, and a membrane support net 505 connected in sequence. The end of the flexible connector 503 is connected to the vibration generating structure 501, and the membrane support net 505 is disposed on the back side of the RO membrane unit 302, wherein the back side refers to the non-filtration side. Further, the flexible connector 503, as the starting part of the vibration transmission assembly 502, is responsible for transmitting the vibration generated by the vibration generating structure 501 to the vibration distribution plate 504 and the membrane support net 505. The flexible connector 503 is made of a highly elastic and fatigue-resistant material (such as rubber, silicone, or polyurethane) to ensure that the flexible connector 503 works stably in a long-term vibration environment. Its shape is usually designed as cylindrical, conical, or corrugated to enhance flexibility and vibration transmission efficiency. One end of the flexible connector 503 is connected to the vibration generating structure 501 by bolts or clips, and the other end is connected to the vibration distribution plate 504 by welding or bonding. The vibration distribution plate 504, as the middle part of the vibration transmission assembly 502, is responsible for uniformly distributing vibrations to the membrane support mesh 505. The vibration distribution plate 504 is made of high-strength, lightweight materials (such as aluminum alloy, titanium alloy, or composite materials) to ensure vibration transmission efficiency. The membrane support mesh 505 is made of corrosion-resistant, high-strength materials (such as stainless steel) to ensure stable operation in humid and corrosive environments. The membrane support mesh 505 is typically designed as a mesh, with the mesh size optimized according to the dimensions and shape of the RO membrane unit 302. Through the coordinated work of the flexible connector 503, the vibration distribution plate 504, and the membrane support mesh 505, the vibration transmission assembly 502 efficiently transmits the vibration generated by the vibration generating structure 501 to the RO membrane unit 302, achieving efficient cleaning and energy recovery. The structure is rationally designed, functionally complete, and offers advantages such as efficient vibration transmission, uniform cleaning, structural stability, and ease of maintenance.

[0053] In a preferred embodiment, the vibration generating structure 501 includes a vibration control structure 506 and a driver 507. The driver 507 generates micro-vibrations, and the vibration control structure 506 is disposed on the driver 507, enabling control over the start, stop, and amplitude of the vibration. Furthermore, the driver 507 is the power source for the vibration generating structure 501, used to generate micro-vibrations. The driver 507 can be a piezoelectric driver or an electromagnetic driver. Piezoelectric drivers are suitable for high-frequency, small-amplitude ultrasonic cleaning, particularly for fine cleaning of the RO membrane unit 302 surface; electromagnetic drivers are suitable for low-frequency, large-amplitude vibration cleaning, suitable for treating thicker dirt on the RO membrane unit 302 surface. The driver 507 is connected to the vibration control structure 506 and receives control signals to start, stop, and adjust the vibration. The vibration control structure 506 includes a control circuit, a sensor module, a mechanical adjustment mechanism, and a human-machine interface. The control circuit generates drive signals and controls the start, stop, and vibration parameters of the driver 507. The sensor module monitors the vibration frequency, amplitude, and phase in real time and feeds the data back to the control circuit. The mechanical adjustment mechanism regulates the vibration amplitude mechanically. The human-machine interface provides a vibration parameter setting and monitoring interface for easy operation. The vibration of the actuator 507 drives the flexible connector 503 to vibrate. The flexible connector 503 absorbs and buffers the vibration energy generated by the actuator 507, preventing the vibration from being directly transmitted to the RO membrane unit 302 and generating excessive impact force, thereby protecting the structural integrity of the RO membrane unit 302 and making the relative movement between the actuator 507 and the RO membrane unit 302 smoother, reducing wear. The design of the flexible connector 503 needs to balance elasticity and rigidity to ensure the transmission of vibration energy.

[0054] In a preferred embodiment, the vibration generating structure 501 is further provided with a vibration energy recovery device 508 for recovering vibration energy. The vibration energy recovery device 508 includes a piezoelectric component 509 and an energy harvesting circuit 510. The piezoelectric component 509 converts vibration mechanical energy into electrical energy, and the energy harvesting circuit 510 stores and recovers the converted electrical energy. Furthermore, the piezoelectric component 509 utilizes the piezoelectric effect to convert mechanical energy into electrical energy. The piezoelectric component 509 includes a piezoelectric material, a vibration sensing structure, a support frame, and connecting electrodes. The piezoelectric material typically uses high-performance piezoelectric ceramics or piezoelectric films. The vibration sensing structure captures mechanical energy and transfers it to the piezoelectric material, and can employ a multilayer laminated or thin-film structure to maximize energy conversion efficiency. The support frame is used to fix the piezoelectric material, ensuring its stability during vibration. The connecting electrodes can discharge the electrical energy generated by the piezoelectric material. The energy harvesting circuit 510 can convert the generated alternating current into direct current and provide a stable voltage to a capacitor, lithium battery, or thin-film battery for storage.

[0055] In a preferred embodiment, the ultrasonic cleaning assembly 401 includes an ultrasonic generator 403 and an ultrasonic transducer 404. The ultrasonic generator 403 generates a high-frequency electrical signal, and the ultrasonic transducer 404 converts the high-frequency electrical signal into mechanical vibration, which cleans the RO membrane unit 302 through the vibration wave. Further, the ultrasonic generator 403 includes a power amplifier, a protection circuit, and a control panel. The power amplifier amplifies the high-frequency electrical signal to ensure that the ultrasonic transducer 404 can generate sufficient mechanical vibration. The power range is set according to cleaning requirements, typically ranging from several hundred watts to several kilowatts. The protection circuit prevents overload, overheating, or short circuit, ensuring the safe operation of the ultrasonic generator 403. The protection circuit includes overcurrent protection, overvoltage protection, and a temperature sensor to improve the stability and safety of the overall structure. The control panel provides an operating interface for users to set and monitor the operating status of the ultrasonic generator 403. The operating status includes parameters such as current frequency and power. The ultrasonic transducer 404 includes a vibrating head, a sealed housing, and a piezoelectric ceramic element. The piezoelectric ceramic element uses high-performance piezoelectric ceramic material to ensure efficient energy conversion. The vibrating head and sealing housing are made of corrosion-resistant materials to ensure long-term stable operation in the cleaning solution. The sealing housing prevents the cleaning solution from entering the housing and damaging internal components. The vibrating head transmits mechanical energy to the cleaning solution, generating ultrasonic waves, thereby improving the cleaning efficiency and effect of the RO membrane unit 302.

[0056] In a preferred embodiment, the control system 402 includes a cleaning frequency adjustment module 405 and a cleaning time control module 406. The cleaning frequency adjustment module 405 controls the vibration frequency of the ultrasonic cleaning component 401, and the cleaning time control module 406 controls the cleaning time of the ultrasonic cleaning component 401. Furthermore, the cleaning frequency adjustment module 405 controls the vibration frequency of the ultrasonic cleaning component 401 to adapt to different cleaning needs and levels of contamination. The cleaning frequency adjustment module 405 generates a high-frequency electrical signal to drive the ultrasonic transducer 404. The frequency adjustment range is typically from 20kHz to 80kHz to accommodate different cleaning requirements. The cleaning time control module 406 sets the cleaning time of the ultrasonic cleaning component 401 to ensure accurate cleaning and avoid over-cleaning or under-cleaning. By reasonably setting the cleaning time, energy waste is reduced and cleaning efficiency is improved.

[0057] In a preferred embodiment, the control system 402 further includes a cleaning fluid circulation module 407. This module 407 delivers the cleaning fluid to the RO membrane unit 302 to work in conjunction with the ultrasonic cleaning assembly 401 for cleaning, and recovers the liquid back into the module after cleaning. Furthermore, the cleaning fluid is provided in different types and pH values ​​depending on the type of the original solution, to improve the cleaning effect on the RO membrane unit 302. The cleaning fluid circulation module 407 includes a cleaning fluid storage tank, a delivery pump, a cleaning fluid conduit, a cleaning fluid distributor, and a recovery filtration device. The cleaning fluid storage tank is made of corrosion-resistant material and has an internal level sensor for real-time monitoring of the cleaning fluid level for timely replenishment. The delivery pump delivers the cleaning fluid through the conduit to the cleaning fluid distributor. The distributor evenly distributes the cleaning fluid to each membrane structure of the RO membrane unit 302, improving the cleaning effect. The recovery filtration device filters the cleaned cleaning fluid and returns it to the storage tank for recycling.

[0058] In a preferred embodiment, the energy recovery unit 6 includes a pressure exchanger 601 and an energy storage device 602. The pressure exchanger 601 converts the pressure energy of the concentrate into mechanical energy, and the energy storage device 602 stores the mechanical energy and feeds it back to the high-pressure pump 301. Furthermore, the internal components of the pressure exchanger 601 are made of high-strength stainless steel or corrosion-resistant alloy to ensure stable operation under high pressure and corrosive environments. The pressure exchanger 601 converts the pressure of the concentrate into mechanical energy, which is temporarily stored by the energy storage device 602 and released when needed. Storage methods include flywheel kinetic energy, hydraulic energy, or compressed air energy. Through efficient energy recovery, the pressure exchanger 601 and energy storage device 602 reduce the load on the high-pressure pump 301, extend its service life, reduce the overall energy consumption of the device, reduce energy waste, and lower subsequent maintenance costs.

[0059] In a preferred embodiment, the energy recovery unit 6 further includes a pressure regulating valve 603 and a flow control valve 604. The pressure regulating valve 603 regulates the pressure of the concentrate, and the flow control valve 604 controls the flow rate of the concentrate. Furthermore, the internal components of the pressure regulating valve 603 are made of stainless steel or corrosion-resistant alloy to ensure stable operation under high pressure and corrosive environments. The pressure regulating valve 603 can be manually or automatically controlled. Automatic control can be integrated with a pressure sensor and PLC system to achieve precise pressure regulation. The connection of the pressure regulating valve 603 uses a high-precision sealing ring or bellows seal to ensure no leakage under high pressure. The flow control valve 604 has various types depending on the flow control accuracy, including throttle valves, proportional valves, or electric regulating valves. The flow control valve 604 can be manually or automatically controlled. Automatic control can achieve precise control through a flow sensor and PLC controller. Through the coordinated operation of the pressure regulating valve 603 and the flow control valve 604, the energy recovery unit 6 achieves precise control of the concentrate pressure and flow rate, ensuring stable operation under high pressure and corrosive environments. Automatic control and high-precision adjustment capabilities further improve the efficiency and reliability of concentrate pressure recovery, while reducing energy waste and operating costs.

[0060] In a preferred embodiment, the liquid inlet unit 2 includes a raw liquid storage tank 201 and an inlet pipe 202. The raw liquid storage tank 201 stores the raw liquid, and the inlet pipe 202 is equipped with a valve body 203 and a filter 204. The filter 204 is used to filter the raw liquid. Furthermore, the raw liquid storage tank 201 is equipped with a sealing ring or a sealing cap to prevent the raw liquid from evaporating or external contaminants from entering. A liquid level sensor is installed inside the raw liquid storage tank 201 to monitor the raw liquid level in real time, facilitating timely replenishment. A collection tank is provided at the bottom of the raw liquid storage tank 201 for collecting and storing permeate. The inlet pipe 202 uses a flange or quick connector for easy installation and subsequent maintenance. The valve body 203 can control the amount and flow rate of the raw liquid entering the raw liquid storage tank 201. The filter 204 is available in various materials, including but not limited to stainless steel filter screens, activated carbon, or ceramic filter elements, allowing selection of different filter media based on the characteristics of the raw liquid to improve the filtration effect. The liquid inlet unit 2 achieves efficient storage, transportation, and filtration of the raw liquid through the coordinated operation of the raw liquid storage tank 201, the liquid inlet pipe 202, the valve body 203, and the filter 204. Its reasonable structural design ensures the stability, safety, and efficiency of the system.

[0061] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0062] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0063] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easy-to-clean RO membrane concentrator, comprising a body (1), characterized in that... Also includes: Liquid inlet unit (2) supplies raw liquid into the body (1) and filters it; The separation structure (3) is provided in the liquid inlet unit (2) and includes a high-pressure pump (301) and an RO membrane unit (302). The RO membrane unit (302) is connected to the high-pressure pump (301). The high-pressure pump (301) is used to separate the raw liquid to form permeate through the RO membrane unit (302) and a retained concentrate. A cleaning structure (4) is provided in the RO membrane unit (302), including an ultrasonic cleaning component (401) and a control system (402). The control system (402) is used to control the ultrasonic cleaning component (401) to clean the RO membrane unit (302). A micro-vibration device (5) is provided in the liquid inlet unit (2), including a vibration generating structure (501) and a vibration transmission component (502). The vibration generating structure (501) generates vibration and transmits it to the RO membrane unit (302) through the vibration transmission component (502) to drive it to vibrate. An energy recovery unit (6) is disposed between the RO membrane unit (302) and the high-pressure pump (301) and is capable of recovering and storing the pressure of the concentrate.

2. The easy-to-clean RO membrane concentrator according to claim 1, characterized in that: The vibration transmission assembly (502) includes a flexible connector (503), a vibration distribution plate (504), and a membrane support net (505) connected in sequence. The end of the flexible connector (503) is connected to the vibration generation structure (501). The membrane support net (505) is disposed on the back side of the RO membrane unit (302), wherein the back side refers to the non-filtration side.

3. The easy-to-clean RO membrane concentrator according to claim 2, characterized in that: The vibration generating structure (501) includes a vibration control structure (506) and a driver (507). The driver (507) is used to generate micro-vibrations, and the vibration control structure (506) is disposed on the driver (507) and can control the start, stop and amplitude of its vibration.

4. The easy-to-clean RO membrane concentrator according to claim 3, characterized in that: The vibration generating structure (501) is also provided with a vibration energy recovery device (508) for recovering vibration energy. The vibration energy recovery device (508) includes a piezoelectric component (509) and an energy harvesting circuit (510). The piezoelectric component (509) converts vibration mechanical energy into electrical energy, and the energy harvesting circuit (510) stores and recovers the converted electrical energy.

5. The RO membrane concentrator that is easy to clean according to claim 1, characterized in that: The ultrasonic cleaning assembly (401) includes an ultrasonic generator (403) and an ultrasonic transducer (404). The ultrasonic generator (403) is used to generate high-frequency electrical signals, and the ultrasonic transducer (404) is used to convert the high-frequency electrical signals into mechanical vibrations and clean the RO membrane unit (302) through vibration waves.

6. The easy-to-clean RO membrane concentrator according to claim 1, characterized in that: The control system (402) includes a cleaning frequency adjustment module (405) and a cleaning time control module (406). The cleaning frequency adjustment module (405) is used to control the vibration frequency of the ultrasonic cleaning component (401), and the cleaning time control module (406) is able to control the cleaning time of the ultrasonic cleaning component (401).

7. The easy-to-clean RO membrane concentrator according to claim 6, characterized in that: The control system (402) further includes a cleaning fluid circulation module (407), which is used to deliver the cleaning fluid to the RO membrane unit (302) to work together with the ultrasonic cleaning assembly (401) to perform cleaning operations, and to recover the liquid back into the module after cleaning is completed.

8. The RO membrane concentrator that is easy to clean according to claim 1, characterized in that: The energy recovery unit (6) includes a pressure exchanger (601) and an energy storage device (602). The pressure exchanger (601) is used to convert the pressure energy of the concentrate into mechanical energy, and the energy storage device (602) is used to store the mechanical energy and feed it back to the high-pressure pump (301).

9. The easy-to-clean RO membrane concentrator according to claim 8, characterized in that: The energy recovery unit (6) further includes a pressure regulating valve (603) and a flow control valve (604). The pressure regulating valve (603) is used to regulate the pressure of the concentrate, and the flow control valve (604) is used to control the flow rate of the concentrate.

10. The easy-to-clean RO membrane concentrator according to claim 1, characterized in that: The liquid inlet unit (2) includes a raw liquid storage tank (201) and a liquid inlet pipe (202). The raw liquid storage tank (201) is used to store the raw liquid. The liquid inlet pipe (202) is equipped with a valve body (203) and a filter (204). The filter (204) is used to filter the raw liquid.

Images