Movable anti-scaling reverse osmosis membrane treatment equipment and control method thereof

Abstract

The invention relates to the technical field of water treatment, in particular to movable anti-scaling reverse osmosis membrane treatment equipment and a control method thereof.The movable anti-scaling reverse osmosis membrane treatment equipment comprises a testing module, a control module and a control module, the testing module comprises a filtered water testing unit used for conducting filtered water testing on an anti-scaling reverse osmosis membrane and a stretching testing unit used for conducting stretching testing on the anti-scaling reverse osmosis membrane; the parameter acquisition module is used for acquiring surface parameters, water filtration test parameters and tensile test parameters of the anti-scaling reverse osmosis membrane; the parameter analysis module is used for determining a target area based on the surface parameters of the anti-scale reverse osmosis membrane and determining the blockage degree and the deformation characterization value of the anti-scale reverse osmosis membrane; the judgment and analysis module is used for judging whether the anti-scale reverse osmosis membrane meets a cleaning standard or not based on the blockage degree of the anti-scale reverse osmosis membrane and determining a target cleaning parameter; and the cleaning module is used for cleaning the anti-scale reverse osmosis membrane based on the target cleaning parameters. The cleaning effect and the cleaning efficiency of the anti-scaling reverse osmosis membrane can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, and particularly relates to a movable scale prevention reverse osmosis membrane treatment device and a control method thereof. BACKGROUND

[0002] Reverse osmosis is generally a water treatment process powered by osmotic pressure difference and using reverse osmosis membranes as filter membranes. The separation characteristics of reverse osmosis membranes can effectively remove impurities such as dissolved salts, colloids, organic matter and bacteria in water, and separate relatively clean water from sewage. Therefore, as filter membranes, reverse osmosis membranes are widely used in fields such as seawater desalination, brackish water desalination, sewage reuse, zero discharge, pure water and ultrapure water preparation. However, during the operation of the reverse osmosis membrane system, the surface of the reverse osmosis membrane will be polluted due to the presence of particulate matter, colloids, organic matter and microorganisms in the raw water, as well as the deposition of insoluble substances during the membrane separation process, which will affect the filtration performance of the reverse osmosis membrane. Therefore, it needs to be cleaned.

[0003] The cleaning method of the reverse osmosis membrane includes physical method and chemical method. The physical cleaning method mainly uses pre-set pressure and high flow rate water to flush the membrane element. This method has poor cleaning effect on the gel layer on the membrane surface and the blocked pollutants in the membrane holes, and has low efficiency, especially for the pollution of adherent microorganisms, bacteria and organic matter. Increasing the flushing force may damage the membrane structure. The chemical cleaning method usually manually sets the cleaning agent injection condition based on experience, which cannot be dynamically adjusted in real time according to the actual situation of the reverse osmosis membrane, resulting in insufficient or excessive dosage, affecting the operation effect and service life of the reverse osmosis membrane.

[0004] Chinese patent application publication No. CN115999376A discloses a reverse osmosis membrane cleaning method and device, electronic equipment and storage medium, belonging to the technical field of water treatment. The method comprises: determining the pollution level of a target reverse osmosis section according to the operation data of the target reverse osmosis section, the target reverse osmosis section being any one of a plurality of reverse osmosis sections included in a reverse osmosis system, the reverse osmosis system being used for purifying water quality; determining the cleaning frequency and cleaning mode corresponding to the target reverse osmosis section based on the pollution level of the target reverse osmosis section.

[0005] The existing technology has the following problems: only the operation data of the target reverse osmosis section is used to determine the pollution level, and the cleaning frequency and cleaning mode are determined based on the pollution level, which lacks fusion analysis of multi-dimensional data and dynamic self-adaptive ability, the pollution level determination is one-sided, and it is difficult to guarantee the cleaning effect and cleaning efficiency. SUMMARY

[0006] To this end, the application provides a mobile anti-fouling reverse osmosis membrane treatment device and a control method thereof, so as to overcome the problems of lack of fusion analysis of multi-dimensional data and dynamic self-adaptive ability in the prior art, one-sided pollution level determination, and difficulty in guaranteeing cleaning effect and cleaning efficiency.

[0007] To achieve the above-mentioned object, in one aspect, the application provides a mobile anti-fouling reverse osmosis membrane treatment device, comprising:

[0008] a test module, comprising a water filtration test unit for water filtration test of the anti-fouling reverse osmosis membrane and a tensile test unit for tensile test of the anti-fouling reverse osmosis membrane;

[0009] a parameter acquisition module connected with the test module, for acquiring surface parameters, water filtration test parameters and tensile test parameters of the anti-fouling reverse osmosis membrane;

[0010] a parameter analysis module connected with the parameter detection module, for determining a target region based on the surface parameters of the anti-fouling reverse osmosis membrane, determining a blocking degree of the anti-fouling reverse osmosis membrane based on target surface parameters in the target region and the water filtration test parameters, and determining a deformation representation value of the anti-fouling reverse osmosis membrane based on the tensile test parameters;

[0011] a determination analysis module connected with the parameter analysis module, for determining whether the anti-fouling reverse osmosis membrane meets a cleaning standard based on the blocking degree of the anti-fouling reverse osmosis membrane, and determining a target cleaning parameter based on the surface parameters and the deformation representation value of the anti-fouling reverse osmosis membrane;

[0012] a cleaning module connected with the determination analysis module, for cleaning the anti-fouling reverse osmosis membrane based on the target cleaning parameter.

[0013] Further, the water filtration test unit comprises:

[0014] a water delivery mechanism for delivering test water to a water filtration test region of the anti-fouling reverse osmosis membrane at a preset pressure;

[0015] a water filtration test monitoring mechanism for monitoring water filtration test parameters of the anti-fouling reverse osmosis membrane, including water permeation flux and desalination rate.

[0016] Further, the tensile test unit comprises:

[0017] a tensile clamping mechanism for clamping a tensile test region of the anti-fouling reverse osmosis membrane;

[0018] a tensile adjustment mechanism connected with the tensile clamping mechanism, for tensile adjustment of the tensile test region based on a second preset mode;

[0019] a tensile test monitoring mechanism, configured to monitor a tensile deformation variation of the tensile test region during the tensile test;

[0020] a tensile test analyzing mechanism, connected with the tensile test monitoring mechanism, configured to determine tensile test parameters including tensile strength and elongation at break based on the tensile deformation variation of the tensile test region during the tensile test.

[0021] Further, the parameter analyzing module constructs a parameter model of the anti-fouling reverse osmosis membrane based on the surface parameters of the anti-fouling reverse osmosis membrane, and determines a target region based on the parameter model of the anti-fouling reverse osmosis membrane.

[0022] The surface parameters include surface roughness, pore size and membrane thickness.

[0023] Further, the parameter analyzing module determines a target surface parameter representation value based on the target surface parameters in the target region, determines a filtration representation value based on the filtration test parameters, and determines a clogging degree of the anti-fouling reverse osmosis membrane based on the target surface parameter representation value and the filtration representation value.

[0024] Further, the determination analyzing module determines whether the anti-fouling reverse osmosis membrane meets the cleaning standard based on a comparison result of the clogging degree of the anti-fouling reverse osmosis membrane and a preset clogging degree.

[0025] Further, the determination analyzing module determines a target cleaning parameter based on the surface parameter variation of the anti-fouling reverse osmosis membrane and the deformation representation value under a first condition.

[0026] The first condition is that the determination analyzing module determines that the anti-fouling reverse osmosis membrane meets the cleaning standard.

[0027] Further, the determination analyzing module determines a comprehensive parameter representation value based on the surface parameters of the anti-fouling reverse osmosis membrane, determines a parameter adjustment coefficient based on the comprehensive parameter representation value and the deformation representation value, and determines the target cleaning parameter based on the parameter adjustment coefficient and a preset cleaning parameter.

[0028] The cleaning parameters include cleaning agent addition amount, addition pressure and ultrasonic frequency.

[0029] Further, the cleaning module includes:

[0030] a cleaning unit, including a cleaning agent storage mechanism configured to store a cleaning agent, and a cleaning pipeline mechanism connected with the cleaning agent storage mechanism and configured to deliver the cleaning agent and adjust the cleaning agent addition amount and addition pressure;

[0031] an ultrasonic unit configured to apply ultrasonic waves to the anti-fouling reverse osmosis membrane during the cleaning process and control the ultrasonic frequency.

[0032] In another aspect, the present application also provides a control method, comprising:

[0033] obtaining surface parameters of the anti-fouling reverse osmosis membrane, and determining a target region based on the surface parameters of the anti-fouling reverse osmosis membrane;

[0034] performing a filtration test on the anti-fouling reverse osmosis membrane by a filtration test unit to obtain filtration test parameters of the anti-fouling reverse osmosis membrane;

[0035] performing a tensile test on the anti-fouling reverse osmosis membrane by a tensile test unit to obtain tensile test parameters of the anti-fouling reverse osmosis membrane, and determining a deformation representation value of the anti-fouling reverse osmosis membrane based on the tensile test parameters;

[0036] determining a blocking degree of the anti-fouling reverse osmosis membrane based on the target surface parameters and the filtration test parameters in the target region;

[0037] determining whether the anti-fouling reverse osmosis membrane meets a cleaning standard based on the blocking degree, and determining a target cleaning parameter based on the surface parameters and the deformation representation value of the anti-fouling reverse osmosis membrane if the anti-fouling reverse osmosis membrane meets the cleaning standard;

[0038] controlling a cleaning module to clean the anti-fouling reverse osmosis membrane based on the target cleaning parameter.

[0039] Compared with the prior art, the present application has the beneficial effects that the test module of the present application can simulate actual working conditions to perform a filtration test on the anti-fouling reverse osmosis membrane to obtain filtration test parameters, accurately evaluate the water treatment effect of the anti-fouling reverse osmosis membrane, and the tensile test unit can perform a tensile test on the anti-fouling reverse osmosis membrane to obtain tensile test parameters, accurately evaluate the mechanical properties of the anti-fouling reverse osmosis membrane, and provide data support for subsequent analysis and determination. The parameter analysis module is provided to determine a target region based on the surface parameters, and the blocking degree of the anti-fouling reverse osmosis membrane can be accurately determined by the fusion analysis of multi-dimensional data based on the target surface parameters and the filtration test parameters in the target region, so that the pollution condition and the filtration performance change of the membrane surface can be effectively identified. The determination analysis module is provided to determine whether the anti-fouling reverse osmosis membrane meets a cleaning standard based on the blocking degree of the anti-fouling reverse osmosis membrane, which can improve the accuracy of determination, avoid excessive cleaning and insufficient cleaning, determine a target cleaning parameter by comprehensively considering the surface parameters and the deformation representation value of the anti-fouling reverse osmosis membrane, and develop a personalized cleaning scheme according to the actual condition of different anti-fouling reverse osmosis membranes to improve the cleaning effect and the cleaning efficiency.

[0040] Further, the water filtration test unit of the present application can continuously and stably deliver test water to the water filtration test area of the anti-scaling reverse osmosis membrane through the water delivery mechanism, ensuring that the water filtration test process is not affected by water flow interruption or unstable flow, thereby ensuring the continuity and reliability of the test. By setting the pressure adjustment mechanism, the pressure of the water filtration test area can be adjusted based on the first preset mode, which can comprehensively evaluate the water filtration performance of the reverse osmosis membrane. By precisely controlling the pressure, the reverse osmosis membrane can be tested within an appropriate pressure range, avoiding test deviation or result distortion caused by excessively high or low pressure. By setting the water filtration test monitoring mechanism, the water permeation flux and desalination rate of the anti-scaling reverse osmosis membrane during the water filtration test process can be monitored in real time, which helps to comprehensively evaluate the current water filtration performance of the anti-scaling reverse osmosis membrane.

[0041] Further, the tensile test unit of the present application can stably clamp the tensile test area of the anti-scaling reverse osmosis membrane through the tensile clamping mechanism, ensuring that the membrane sample does not slip, displace or loosen during the tensile process, and adapting to tensile test areas of different sizes to meet testing needs and ensure the accuracy of test data. By setting the tensile adjustment mechanism, the tensile test area can be controlled based on the second preset mode, which can simulate the stress condition of the anti-scaling reverse osmosis membrane to provide test conditions for comprehensive evaluation of the mechanical properties of the membrane. By setting the tensile test monitoring mechanism, the tensile deformation change of the anti-scaling reverse osmosis membrane during the tensile process can be monitored in real time. By setting the tensile test analysis mechanism, the tensile strength and elongation at break can be accurately analyzed and determined, thereby comprehensively and deeply analyzing the current mechanical properties of the anti-scaling reverse osmosis membrane.

[0042] Further, the parameter analysis module of the present application can integrate the surface parameters of the anti-scaling reverse osmosis membrane by constructing an anti-scaling reverse osmosis membrane parameter model, comprehensively evaluate the pollution condition of each position of the anti-scaling reverse osmosis membrane, and accurately locate the target area by in-depth analysis of the target surface parameters corresponding to the target area, thereby improving the analysis efficiency.

[0043] Further, the parameter analysis module of the present application can determine the target surface parameter representation value by analyzing the target surface parameters in the target area, and determine the water filtration representation value based on the water filtration test parameters, which can comprehensively evaluate the blocking degree of the anti-scaling reverse osmosis membrane, avoid misjudgment that may occur only according to a single parameter, improve the accuracy of subsequent determination, and thereby improve the cleaning effect. By determining whether the anti-scaling reverse osmosis membrane meets the cleaning standard based on the blocking degree of the anti-scaling reverse osmosis membrane, the pollution condition of the anti-scaling reverse osmosis membrane can be accurately evaluated, over-cleaning can be avoided, and timely cleaning can be performed before the blocking degree intensifies, which can reduce the cleaning difficulty and improve the cleaning effect.

[0044] Further, the application determines the parameter adjustment coefficient based on the surface parameters and deformation characteristic values of the antifouling reverse osmosis membrane, and determines the target cleaning parameter based on the parameter adjustment coefficient and the preset cleaning parameter, which can comprehensively consider the surface characteristics and mechanical properties of the antifouling reverse osmosis membrane, so that the target cleaning parameter can more accurately match the actual pollution condition of the antifouling reverse osmosis membrane, and through dynamic adjustment of the cleaning parameter, the cleaning effect and efficiency can be improved, and the membrane damage can be reduced.

[0045] Further, the cleaning module of the application is provided with a cleaning unit to store a certain amount of cleaning agent, so as to ensure sufficient supply of cleaning agent during cleaning, avoid interruption of cleaning due to insufficient cleaning agent, and reasonably deliver the cleaning agent by accurately adjusting the liquid amount and liquid pressure of the cleaning agent, so as to improve the cleaning effect and efficiency. By providing an ultrasonic unit, ultrasonic waves are applied to the antifouling reverse osmosis membrane during cleaning. The high-frequency vibration of the ultrasonic waves can generate a large number of micro-bubbles. These bubbles rapidly form and break on the membrane surface, generating strong impact force and micro-cavitation effect, effectively loosening and removing the pollutants on the membrane surface, thereby improving the cleaning effect and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 The structure block diagram of the mobile antifouling reverse osmosis membrane treatment equipment of the embodiment of the application is shown in the figure.

[0047] Figure 2 The structure block diagram of the water filtration test unit of the embodiment of the application is shown in the figure.

[0048] Figure 3 The structure block diagram of the tensile test unit of the embodiment of the application is shown in the figure.

[0049] Figure 4 The structure block diagram of the cleaning module of the embodiment of the application is shown in the figure.

[0050] Figure 5 The flowchart of the control method of the mobile antifouling reverse osmosis membrane treatment equipment of the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0051] In order to make the purpose and advantages of the application more clear and obvious, the application will be further described below in combination with embodiments; it should be understood that the specific embodiments described herein are only used to explain the application, and do not limit the protection scope of the application.

[0052] The preferred embodiments of the application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the application, and are not intended to limit the protection scope of the application.

[0053] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0054] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0055] Please refer to Figure 1 As shown in the figure, it is a structural block diagram of the mobile anti-scaling reverse osmosis membrane treatment equipment according to the embodiment of the present application; the embodiment of the present application provides a mobile anti-scaling reverse osmosis membrane treatment equipment, which comprises:

[0056] The test module comprises a water filtration test unit for water filtration test of the anti-scaling reverse osmosis membrane and a tensile test unit for tensile test of the anti-scaling reverse osmosis membrane;

[0057] Please refer to Figure 2 As shown in the figure, it is a structural block diagram of the water filtration test unit according to the embodiment of the present application; specifically, the water filtration test unit comprises:

[0058] The water delivery mechanism is used to deliver the test water to the water filtration test area of the anti-scaling reverse osmosis membrane at a preset pressure;

[0059] The water filtration test monitoring mechanism is used to monitor the water filtration test parameters of the anti-scaling reverse osmosis membrane, including water permeation flux and desalination rate.

[0060] In the implementation, the specific structure of the water delivery mechanism and the water filtration test monitoring mechanism is not limited, for example, the water delivery mechanism includes a water storage tank, a water delivery pipeline, a water pump and an adjusting valve, the water pump is used to draw test water from the water storage tank, the test water is delivered to the water filtration test area of the anti-scaling reverse osmosis membrane through the water delivery pipeline at a preset pressure, and the adjusting valve is used to adjust the start and stop; the water filtration test monitoring mechanism includes a flow meter, a conductivity meter and the like, the flow meter can be installed at the water outlet of the water filtration test area of the anti-scaling reverse osmosis membrane, and is used to monitor the water quantity filtered through the water filtration test area of the anti-scaling reverse osmosis membrane in real time, the water permeation flux is determined by measuring the water quantity passing through the water filtration test area in a unit time, for example, TS = V / (A*t), wherein TS is the water permeation flux, V is the water quantity passing through the water filtration test area in t time, A is the area of the water filtration test area, and t is time; the conductivity meter is used to detect the conductivity of the inlet water (water before filtration through the anti-scaling reverse osmosis membrane) and the outlet water (water after filtration through the anti-scaling reverse osmosis membrane), and then determine the desalination rate, for example, TY = (Da-Db) / Da, wherein TY is the desalination rate, Da is the conductivity of the inlet water, and Db is the conductivity of the outlet water.

[0061] It can be understood that the water filtration test can be performed for several times, the water filtration test parameters of the anti-scaling reverse osmosis membrane are determined by calculating the average of the water permeation fluxes under different pressures and the average of the desalination rates, and preferably, the preset pressure value range can be set as 0.1 MPa-1 MPa.

[0062] The water filtration test unit can continuously and stably deliver the test water to the water filtration test area of the anti-scaling reverse osmosis membrane through the water delivery mechanism, ensures that the water filtration test process is not affected by water flow interruption or unstable flow, and thus guarantees the continuity and reliability of the test. The pressure of the water filtration test area can be adjusted based on the first preset mode through the pressure adjusting mechanism, the water filtration performance of the reverse osmosis membrane can be comprehensively evaluated, the reverse osmosis membrane can be tested in a suitable pressure range through accurate control of the pressure, and test deviation or result distortion caused by excessively high or low pressure can be avoided. The water filtration test monitoring mechanism can be used to monitor the water permeation flux and the desalination rate of the anti-scaling reverse osmosis membrane in the water filtration test process in real time, which is helpful to comprehensively evaluate the current water filtration performance of the anti-scaling reverse osmosis membrane.

[0063] Please refer to Figure 3 The tensile test unit includes:

[0064] A tensile clamping mechanism is used to clamp the tensile test area of the anti-scaling reverse osmosis membrane.

[0065] A tensile adjusting mechanism is connected with the tensile clamping mechanism, and is used to stretch the tensile test area based on a second preset mode.

[0066] a tensile test monitoring mechanism, configured to monitor a tensile deformation change of the tensile test region during the tensile process;

[0067] a tensile test analysis mechanism, connected with the tensile test monitoring mechanism, configured to determine tensile test parameters including tensile strength and breaking elongation based on the tensile deformation change of the tensile test region during the tensile process.

[0068] In the implementation, the specific structure of the tensile clamping mechanism, the tensile adjusting mechanism and the tensile test monitoring mechanism is not limited, for example, the tensile clamping mechanism can be composed of two oppositely arranged clamps, the inner surface of the clamp is provided with anti-skid tooth pattern or rubber pad, the tensile test region of the anti-fouling reverse osmosis membrane is placed between the two clamps, and the clamps are closed to clamp the tensile test region of the anti-fouling reverse osmosis membrane. The tensile adjusting mechanism can realize the tensile test of the tensile test region of the anti-fouling reverse osmosis membrane clamped on the clamp through the linear motion of the ball screw or the sliding module, and the second preset mode is to stretch at a preset tensile speed and a preset tensile force, and the actual implementer can set the preset tensile speed and the preset tensile force based on the actual situation; the tensile test monitoring mechanism can be composed of a displacement sensor and a strain gauge, the displacement sensor is installed on the clamp for measuring the displacement change between the two clamps, and the strain gauge is arranged in the tensile test region of the anti-fouling reverse osmosis membrane for measuring the strain change of the tensile test region; in the actual application process, the tensile test analysis mechanism can construct a tensile characteristic model based on the displacement change between the two clamps and the strain change of the tensile test region during the tensile process, simulate the tensile condition of the tensile test region according to the tensile characteristic model, and thus determine the tensile strength and the breaking elongation of the tensile test region.

[0069] The tensile test unit of the present application can stably clamp the tensile test region of the anti-fouling reverse osmosis membrane through the tensile clamping mechanism, ensure that the membrane sample does not slide, displace or loosen during the tensile process, adapt to tensile test regions of different sizes, meet the test requirements, and guarantee the accuracy of the test data. The tensile test region is controlled based on the second preset mode through the tensile adjusting mechanism, the stress condition of the anti-fouling reverse osmosis membrane can be simulated, and the test conditions for comprehensively evaluating the mechanical properties of the membrane are provided. The tensile test monitoring mechanism can monitor the tensile deformation change of the anti-fouling reverse osmosis membrane during the tensile process in real time, and the tensile test analysis mechanism can accurately analyze and determine the tensile strength and the breaking elongation, so as to comprehensively and deeply analyze the current mechanical properties of the anti-fouling reverse osmosis membrane.

[0070] a parameter acquisition module, connected with the test module, configured to acquire surface parameters, water filtration test parameters and tensile test parameters of the anti-fouling reverse osmosis membrane;

[0071] In implementation, the specific method and device for acquiring the surface parameters of the anti-fouling reverse osmosis membrane are not limited.

[0072] a parameter analysis module connected with the parameter detection module, configured to determine a target region based on the surface parameters of the anti-fouling reverse osmosis membrane, determine a blocking degree of the anti-fouling reverse osmosis membrane based on a target surface parameter in the target region and a filtration test parameter, and determine a deformation representation value of the anti-fouling reverse osmosis membrane based on the tensile test parameter;

[0073] Specifically, the parameter analysis module constructs an anti-fouling reverse osmosis membrane parameter model based on the surface parameters of the anti-fouling reverse osmosis membrane, and determines the target region based on the anti-fouling reverse osmosis membrane parameter model.

[0074] The surface parameters include surface roughness, pore size and membrane thickness.

[0075] In implementation, the anti-fouling reverse osmosis membrane parameter model can be constructed based on the surface parameter variation of each position of the anti-fouling reverse osmosis membrane to simulate the actual running state of the anti-fouling reverse osmosis membrane. The anti-fouling reverse osmosis membrane is evenly divided into several regions. For each region, the surface parameter corresponding to each region is determined according to the mean value of the surface parameters of each position in each region. The surface parameter corresponding to each region is input into the anti-fouling reverse osmosis membrane parameter model to evaluate the filtration performance of each region based on the running state of each region. The filtration performance of each region is sorted, and the region with the worst filtration performance is determined as the target region, and the surface parameter corresponding to the target region is determined as the target surface parameter.

[0076] The parameter analysis module of the present application can integrate the surface parameters of the anti-fouling reverse osmosis membrane by constructing the anti-fouling reverse osmosis membrane parameter model, comprehensively evaluate the pollution of each position of the anti-fouling reverse osmosis membrane, accurately locate the target region, and improve the analysis efficiency by in-depth analysis of the target surface parameter corresponding to the target region.

[0077] Specifically, the parameter analysis module determines a target surface parameter representation value based on the target surface parameter in the target region, determines a filtration representation value based on the filtration test parameter, and determines the blocking degree of the anti-fouling reverse osmosis membrane based on the target surface parameter representation value and the filtration representation value.

[0078] In implementation, the target surface parameter representation value is determined based on the comparison result of the target surface parameter and the preset surface parameter. For example, the target surface parameters Y1, Y2, …, Y j , …, Y m are compared with the preset surface parameters E1, E2, …, E j , …, E mwherein, j = 1, 2, …, m, then the target surface parameter characteristic value MB = (∑ m j＝1 (Y j / E j )) / m, m is the number of surface parameters, the filtration characteristic value is determined based on the comparison result of the filtration test parameters and the preset filtration parameters, for example, filtration test parameters A1, A2, …, A i , …, A n and the preset filtration parameters B1, B2, …, B i , …, B n , wherein, i = 1, 2, …, n, then the filtration characteristic value LB = (∑ n i＝1 (B i / A i )) / n, n is the number of filtration test parameters, the preset surface parameter is the average of the surface parameters of each position measured before the use of the anti-fouling reverse osmosis membrane, and the preset filtration parameter is the filtration test parameter obtained based on the filtration test unit when the anti-fouling reverse osmosis membrane is used for the first time; it can be understood that the surface parameters gradually increase and the filtration test parameters gradually decrease during the use of the anti-fouling reverse osmosis membrane, and the greater the surface parameter characteristic value and the greater the filtration characteristic value, the greater the degree of clogging of the anti-fouling reverse osmosis membrane, and the average of the surface parameter characteristic value and the filtration characteristic value is used to determine the degree of clogging of the anti-fouling reverse osmosis membrane.

[0079] The parameter analysis module of the present application determines the target surface parameter characteristic value by analyzing the target surface parameters in the target area, and determines the filtration characteristic value based on the filtration test parameters, which can comprehensively evaluate the degree of clogging of the anti-fouling reverse osmosis membrane, avoid misjudgment that may occur only according to a single parameter, improve the accuracy of subsequent determination, and thus improve the cleaning effect. By determining whether the anti-fouling reverse osmosis membrane meets the cleaning standard based on the degree of clogging of the anti-fouling reverse osmosis membrane, the pollution of the anti-fouling reverse osmosis membrane can be accurately evaluated, over-cleaning can be avoided, and timely cleaning can be performed before the degree of clogging intensifies, which can reduce the difficulty of cleaning and improve the cleaning effect.

[0080] A determination analysis module connected to the parameter analysis module is used to determine whether the anti-fouling reverse osmosis membrane meets the cleaning standard based on the degree of clogging of the anti-fouling reverse osmosis membrane, and to determine the target cleaning parameter based on the surface parameters and the deformation characteristic value of the anti-fouling reverse osmosis membrane.

[0081] Specifically, the determination analysis module determines whether the anti-fouling reverse osmosis membrane meets the cleaning standard based on the comparison result of the degree of clogging of the anti-fouling reverse osmosis membrane and the preset degree of clogging.

[0082] In implementation, if the degree of clogging of the anti-fouling reverse osmosis membrane is greater than the preset degree of clogging, it is determined that the anti-fouling reverse osmosis membrane meets the cleaning standard.

[0083] If the degree of fouling of the anti-fouling reverse osmosis membrane is less than or equal to the preset degree of fouling, it is determined that the anti-fouling reverse osmosis membrane does not meet the cleaning standard.

[0084] Specifically, the determination analysis module determines the target cleaning parameter based on the surface parameter variation of the anti-fouling reverse osmosis membrane and the deformation representation value under the first condition.

[0085] The first condition is that the determination analysis module determines that the anti-fouling reverse osmosis membrane meets the cleaning standard.

[0086] Specifically, the determination analysis module determines a comprehensive parameter representation value based on the surface parameter of the anti-fouling reverse osmosis membrane, determines a parameter adjustment coefficient based on the comprehensive parameter representation value and the deformation representation value, and determines the target cleaning parameter based on the parameter adjustment coefficient and the preset cleaning parameter.

[0087] The cleaning parameter includes cleaning agent liquid addition amount, liquid addition pressure and ultrasonic frequency.

[0088] In implementation, the average of the surface parameters of each position of the anti-fouling reverse osmosis membrane is determined to determine the comprehensive surface parameter (for example, the average of the surface roughness of each position of the anti-fouling reverse osmosis membrane is determined to be the comprehensive surface roughness, and the average of the film thickness of each position of the anti-fouling reverse osmosis membrane is determined to be the comprehensive film thickness), and the comprehensive parameter representation value is determined based on the comparison result of the comprehensive surface parameter and the preset surface parameter, for example, the comprehensive surface parameters F1, F2, …, F j , …, F m and the preset surface parameters E1, E2, …, E j , …, E m , then the comprehensive parameter representation value FB=(∑ m j＝1 (F j / E j )) / m.

[0089] It can be understood that the deformation representation value of the anti-fouling reverse osmosis membrane is determined based on the comparison result of the tensile test parameter and the preset tensile parameter, for example, the tensile test parameters L1, L2, …, L k , …, L g and the preset tensile parameters C1, C2, …, C k , …, C g , wherein k=1, 2, …, g, then the deformation representation value XB=(∑ g k＝1 (L k / C k )) / g, g is the number of tensile test parameters, and in actual application, the preset tensile parameter is the tensile test parameter obtained by the tensile test unit based on the anti-fouling reverse osmosis membrane at the initial use.

[0090] It can be understood that the mean value of the comprehensive parameter characteristic value and the deformation characteristic value is determined as the parameter adjustment coefficient, and the target cleaning parameter is determined according to the product of the parameter adjustment coefficient and the preset cleaning parameter, for example, the target cleaning agent liquid addition amount MQ = CT × YQ, wherein CT is the parameter adjustment coefficient, and YQ is the preset cleaning agent liquid addition amount.

[0091] It can be understood that in actual application, the actual implementer can determine the preset cleaning parameter based on the actual situation or based on the minimum value of the cleaning parameter that passes the eligibility test in the historical data.

[0092] The determination and analysis module determines the parameter adjustment coefficient based on the surface parameter and the deformation characteristic value of the antifouling reverse osmosis membrane, and determines the target cleaning parameter based on the parameter adjustment coefficient and the preset cleaning parameter, which can comprehensively consider the surface characteristics and mechanical properties of the antifouling reverse osmosis membrane, so that the target cleaning parameter is more accurately matched with the actual pollution condition of the antifouling reverse osmosis membrane, and through dynamic adjustment of the cleaning parameter, the cleaning effect and efficiency can be improved, and the membrane damage can be reduced.

[0093] The cleaning module is connected with the determination and analysis module, and is used to clean the antifouling reverse osmosis membrane based on the target cleaning parameter.

[0094] Please refer to Figure 4 The cleaning module includes:

[0095] The cleaning unit includes a cleaning agent storage mechanism for storing the cleaning agent, and a cleaning pipeline mechanism connected with the cleaning agent storage mechanism for conveying the cleaning agent and adjusting the cleaning agent liquid addition amount and the liquid addition pressure.

[0096] The ultrasonic unit is used to apply ultrasonic waves to the antifouling reverse osmosis membrane during cleaning, and control the ultrasonic frequency.

[0097] In the implementation, the specific structure of the cleaning unit and the ultrasonic unit is not limited, the cleaning agent storage mechanism and the cleaning pipeline mechanism in the cleaning unit are both corrosion-resistant structures, the cleaning pipeline mechanism includes a conveying pipeline, a cleaning agent pressurizing pump and a valve, the cleaning agent pressurizing pump provides liquid addition pressure for cleaning agent conveying, and the valve is used to control the start and stop of liquid addition, thereby controlling the cleaning agent liquid addition amount.

[0098] It can be understood that the ultrasonic unit includes an ultrasonic wave generator, which can generate ultrasonic wave signals of different ultrasonic frequencies.

[0099] The cleaning module of the present application is provided with a cleaning unit to store a certain amount of cleaning agent, ensuring sufficient supply of cleaning agent during the cleaning process, avoiding interruption of cleaning due to insufficient cleaning agent, and reasonably delivering the cleaning agent by precisely adjusting the liquid amount and pressure of the cleaning agent, thereby improving the cleaning effect and efficiency. By setting the ultrasonic unit, the anti-scaling reverse osmosis membrane is subjected to ultrasonic waves during the cleaning process. The high-frequency vibration of the ultrasonic waves can generate a large number of micro-bubbles. These bubbles rapidly form and break on the membrane surface, producing strong impact force and micro-cavitation effect, effectively loosening and removing the membrane surface contaminants, thereby improving the cleaning effect and efficiency.

[0100] The test module of the present application is provided with a water filtration test unit to simulate actual working conditions and perform water filtration test on the anti-scaling reverse osmosis membrane, so as to obtain water filtration test parameters, accurately evaluate the water treatment effect of the anti-scaling reverse osmosis membrane, and perform tensile test on the anti-scaling reverse osmosis membrane by the tensile test unit to obtain tensile test parameters and accurately evaluate the mechanical properties of the anti-scaling reverse osmosis membrane, thereby providing data support for subsequent analysis and determination. By setting the parameter analysis module, the target area is determined based on the surface parameters, and the target surface parameters and water filtration test parameters in the target area are combined to accurately determine the blocking degree of the anti-scaling reverse osmosis membrane through multi-dimensional data fusion analysis, so as to effectively identify the pollution condition and filtration performance change of the membrane surface. By setting the determination analysis module, whether the anti-scaling reverse osmosis membrane meets the cleaning standard is determined based on the blocking degree of the anti-scaling reverse osmosis membrane, so as to improve the accuracy of the determination, avoid excessive cleaning and insufficient cleaning, and determine the target cleaning parameters by comprehensively considering the surface parameters and deformation characteristic values of the anti-scaling reverse osmosis membrane, so as to formulate a personalized cleaning scheme according to the actual condition of different anti-scaling reverse osmosis membranes, thereby improving the cleaning effect and efficiency.

[0101] Please refer to Figure 5 The embodiment of the present application also provides a control method, which comprises:

[0102] In step S1, the surface parameters of the anti-scaling reverse osmosis membrane are obtained, and a target area is determined based on the surface parameters of the anti-scaling reverse osmosis membrane.

[0103] In step S2, the water filtration test unit is used to perform water filtration test on the anti-scaling reverse osmosis membrane to obtain water filtration test parameters of the anti-scaling reverse osmosis membrane.

[0104] In step S3, the tensile test unit is used to perform tensile test on the anti-scaling reverse osmosis membrane to obtain tensile test parameters of the anti-scaling reverse osmosis membrane, and a deformation characteristic value of the anti-scaling reverse osmosis membrane is determined based on the tensile test parameters.

[0105] Step S4, determining the blocking degree of the anti-scaling reverse osmosis membrane based on the target surface parameter in the target area and the filtration test parameter;

[0106] Step S5, determining whether the anti-scaling reverse osmosis membrane meets the cleaning standard based on the blocking degree, and if so, determining the target cleaning parameter based on the surface parameter and the deformation characteristic value of the anti-scaling reverse osmosis membrane;

[0107] Step S6, controlling the cleaning module to clean the anti-scaling reverse osmosis membrane based on the target cleaning parameter.

[0108] Specifically, the control method provided by the present application can be applied to the movable anti-scaling reverse osmosis membrane processing device to achieve the same technical effects, which will not be described here.

[0109] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A mobile scale prevention reverse osmosis membrane treatment apparatus, characterized by, The application relates to a method for cleaning a scale-resistant reverse osmosis membrane. The method comprises the following steps: a test module comprises a filtration test unit for carrying out a filtration test on the scale-resistant reverse osmosis membrane and a tensile test unit for carrying out a tensile test on the scale-resistant reverse osmosis membrane; a parameter acquisition module connected to the test module is used to acquire surface parameters, filtration test parameters and tensile test parameters of the scale-resistant reverse osmosis membrane; a parameter analysis module connected to the parameter acquisition module is used to determine a target region based on the surface parameters of the scale-resistant reverse osmosis membrane, determine a blocking degree of the scale-resistant reverse osmosis membrane based on target surface parameters in the target region and the filtration test parameters, and determine a deformation characteristic value of the scale-resistant reverse osmosis membrane based on the tensile test parameters; a judgment analysis module connected to the parameter analysis module is used to determine whether the scale-resistant reverse osmosis membrane meets a cleaning standard based on the blocking degree of the scale-resistant reverse osmosis membrane, and determine a target cleaning parameter based on the surface parameters of the scale-resistant reverse osmosis membrane and the deformation characteristic value; 2. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 1, characterized by a cleaning module connected to the judgment analysis module is used to clean the scale-resistant reverse osmosis membrane based on the target cleaning parameter. The filtration test unit comprises: a water conveying mechanism used to convey test water to a filtration test region of the scale-resistant reverse osmosis membrane at a preset pressure; 3. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 2, characterized by a filtration test monitoring mechanism used to monitor the filtration test parameters of the scale-resistant reverse osmosis membrane, including water permeation flux and desalination rate. The tensile test unit comprises: a tensile clamping mechanism used to clamp a tensile test region of the scale-resistant reverse osmosis membrane; a tensile adjusting mechanism connected to the tensile clamping mechanism and used to stretch the tensile test region based on a second preset mode; a tensile test monitoring mechanism used to monitor tensile deformation amount change of the tensile test region during the stretching process; 4. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 3, characterized by a tensile test analysis mechanism connected to the tensile test monitoring mechanism and used to determine tensile test parameters, including tensile strength and breaking elongation, based on the tensile deformation amount change of the tensile test region during the stretching process. The parameter analysis module constructs a scale-resistant reverse osmosis membrane parameter model based on the surface parameters of the scale-resistant reverse osmosis membrane, and determines a target region based on the scale-resistant reverse osmosis membrane parameter model.

5. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 4, characterized by The surface parameters include surface roughness, pore size and membrane thickness.

6. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 5, wherein The parameter analysis module determines a target surface parameter characteristic value based on the target surface parameters in the target region, determines a filtration characteristic value based on the filtration test parameters, and determines the blocking degree of the scale-resistant reverse osmosis membrane based on the target surface parameter characteristic value and the filtration characteristic value.

7. The mobile scale-pit-free reverse osmosis membrane treatment apparatus according to claim 6, characterized in that, The judgment analysis module determines whether the scale-resistant reverse osmosis membrane meets the cleaning standard based on a comparison result of the blocking degree of the scale-resistant reverse osmosis membrane and a preset blocking degree. The judgment analysis module determines the target cleaning parameter based on the surface parameter change of the scale-resistant reverse osmosis membrane and the deformation characteristic value under a first condition. The first condition is that the judgment analysis module determines that the scale-resistant reverse osmosis membrane meets the cleaning standard.

8. The mobile scale-preventing reverse osmosis membrane treatment apparatus according to claim 7, characterized by The determination analysis module determines a comprehensive parameter representation value based on the surface parameters of the anti-fouling reverse osmosis membrane, determines a parameter adjustment coefficient based on the comprehensive parameter representation value and the deformation representation value, and determines a target cleaning parameter based on the parameter adjustment coefficient and a preset cleaning parameter. The cleaning parameter includes a cleaning agent liquid addition amount, a liquid addition pressure, and an ultrasonic frequency.

9. The mobile scale- preventing reverse osmosis membrane treatment apparatus according to claim 1, wherein The cleaning module includes: a cleaning unit including a cleaning agent storage mechanism for storing a cleaning agent, and a cleaning pipeline mechanism connected to the cleaning agent storage mechanism for delivering the cleaning agent and adjusting the cleaning agent liquid addition amount and the liquid addition pressure; an ultrasonic unit for applying ultrasonic waves to the anti-fouling reverse osmosis membrane during the cleaning process and controlling the ultrasonic frequency.

10. A control method applied to the mobile anti-scaling reverse osmosis membrane treatment device according to any one of claims 1-9, characterized in that, The method includes: obtaining surface parameters of the anti-fouling reverse osmosis membrane and determining a target region based on the surface parameters of the anti-fouling reverse osmosis membrane; performing a water filtration test on the anti-fouling reverse osmosis membrane by a water filtration test unit to obtain water filtration test parameters of the anti-fouling reverse osmosis membrane; performing a tensile test on the anti-fouling reverse osmosis membrane by a tensile test unit to obtain tensile test parameters of the anti-fouling reverse osmosis membrane and determine a deformation representation value of the anti-fouling reverse osmosis membrane based on the tensile test parameters; determining a blockage degree of the anti-fouling reverse osmosis membrane based on target surface parameters in the target region and the water filtration test parameters; determining whether the anti-fouling reverse osmosis membrane meets a cleaning standard based on the blockage degree, and if so, determining a target cleaning parameter based on the surface parameters of the anti-fouling reverse osmosis membrane and the deformation representation value; controlling a cleaning module to clean the anti-fouling reverse osmosis membrane based on the target cleaning parameter.

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