Filter material performance enhancement system and online comprehensive evaluation method

Abstract

The application discloses a filter filter material performance strengthening system and an online comprehensive evaluation method. A pressure regulating water passing steel plate, a water passing porous filter plate, a filter material layer, a thickened supporting porous plate and a plurality of filter heads are sequentially arranged in a filter body from top to bottom. A motor is arranged at the top of the filter body. An output shaft of the motor is connected with one end of a first telescopic control shaft body and a first telescopic rod. The other end of the first telescopic rod is connected with one end of a second telescopic control shaft body and a second telescopic rod. The other end of the second telescopic rod is connected with the water passing porous filter plate. The second telescopic control shaft body is arranged on the pressure regulating water passing steel plate. A controller for controlling the motor is arranged on the motor. The system and the method can avoid frequent manual maintenance and replacement of filter materials.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water treatment, and relates to a filter material performance strengthening system and an online comprehensive evaluation method. BACKGROUND

[0002] In the field of sewage treatment today, the filtration process plays an indispensable basic role as a key link for guaranteeing water quality, removing impurities and realizing fine treatment of fluid. The performance of filter material, as the core element of the filtration system, is directly related to the operation effectiveness of the entire filtration system, the treatment cost and the quality standard of the output fluid.

[0003] Traditional filters have many limitations in terms of structure and operation control. From the structural point of view, conventional filters are usually composed of a simple box and inlet and outlet water pipelines, and the internal filter material is statically filled, lacking a flexible and adjustable mechanism to cope with complex and variable working conditions. In the industrial wastewater treatment process, the inlet water quality varies greatly due to the discharge of different production batches, and is not only impacted by high-concentration suspended solids, but also contains complex organic pollutants and variable pH fluctuations. The static filter material structure is difficult to maintain stable filtration efficiency in such fluctuating conditions. As the filter material is clogged and the adsorption sites are saturated, frequent manual maintenance and replacement of the filter material become a necessity, which not only interrupts production and increases the labor and material investment in operation and maintenance, but also easily damages the filter material and equipment due to improper operation. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide a filter material performance strengthening system and an online comprehensive evaluation method, which can avoid frequent manual maintenance and replacement of the filter material.

[0005] To achieve the above-mentioned purpose, the present application discloses a filter material performance strengthening system, which comprises a filter body, a first telescopic control shaft body, a first telescopic rod, a second telescopic control shaft body and a second telescopic rod.

[0006] A pressure-adjusting water passing steel plate, a water passing porous filter plate, a filter material layer, a thickened supporting porous plate and a plurality of filter heads are sequentially arranged in the filter body from top to bottom. A motor is arranged at the top of the filter body. The output shaft of the motor is connected to one end of the first telescopic rod through the first telescopic control shaft body. The other end of the first telescopic rod is connected to one end of the second telescopic rod through the second telescopic control shaft body. The other end of the second telescopic rod is connected to the water passing porous filter plate. The second telescopic control shaft body is installed on the pressure-adjusting water passing steel plate. A controller for controlling the motor is arranged on the motor.

[0007] Further improvements of the filter material performance strengthening system of the present application are as follows:

[0008] Further, the water inlet pipe and the water outlet pipe are further included, the water inlet pipe is connected with the water inlet of the top of the filter body in sequence through the first valve, the water inlet intelligent flow meter, the first online turbidity instrument and the first online pressure gauge; the filtered water outlet of the bottom of the filter body is connected with the water outlet pipe, and the water outlet pipe is provided with the third valve, the third online turbidity instrument and the third online pressure gauge.

[0009] Further, the backwashing water discharge pipe, the backwashing air inlet pipe and the backwashing water inlet pipe are further included, the backflushing water outlet of the top of the filter body is connected with the backwashing water discharge pipe, the backwashing water discharge pipe is provided with the second online turbidity instrument, the second online pressure gauge and the second valve, the backwashing air inlet pipe is connected with the backwashing air inlet of the filter body, the backwashing water inlet pipe is provided with the fifth valve, and the backwashing air inlet pipe is provided with the fourth valve.

[0010] Further, the bottom of the filter body is provided with the exhaust valve and the fourth online pressure gauge.

[0011] Further, the specific working process is as follows:

[0012] S1: the controller controls the motor to drive the first telescopic control shaft body, the first telescopic rod moves, and the position of the pressure adjusting water passing steel plate in the filter tank body is preliminarily adjusted;

[0013] S2: when the filtering performance of the filter material decreases, the compaction of the filter material needs to be strengthened, the controller controls the motor to adjust the extension of the first telescopic rod, the filter material layer is subjected to greater pressure by the pressure adjusting water passing steel plate, and the water flow is forced to penetrate the filter material layer more uniformly;

[0014] S3: as the filtering time increases, the filtering performance of the filter material continuously decreases, and the filter material is gradually blocked, the second telescopic rod is controlled to be extended through the second telescopic control shaft body, so that the position of the water passing porous filter plate is adjusted, and local water flow short circuit caused by displacement of the pressure adjusting water passing steel plate is prevented.

[0015] The application discloses an online comprehensive evaluation method of a filter material performance strengthening system.

[0016] A filter material pressure model is constructed, and the filter material pressure model is a mathematical relationship model of filtering speed change of filter material under the action of pressure;

[0017] The state of the filter material is evaluated according to the filter material pressure model.

[0018] The online comprehensive evaluation method of the filter material performance strengthening system further improves in that:

[0019] Further, the filter material pressure model is expressed as:

[0020] Further, the filter material pressure model is expressed as:

[0021] Wherein, v is the filtration speed, k0 is the permeability coefficient of filter material, μ is the dynamic viscosity of fluid, E0 is the compression modulus of clean filter material, C is the pollution coefficient, k is a constant greater than 0, ε0 is the porosity of filter material naturally placed, h is the thickness of filter material layer, and P is the pressure applied by the facility on the filter material.

[0022] Further, the v(P) change curve is drawn, and the degree of filter material clogging is evaluated by observing the change of the curve slope.

[0023] Further, the smaller the absolute value of the slope is, the smaller the flow speed under the current pressure gradient, and the filter material is slowly clogging; the larger the absolute value of the slope is, the larger the flow speed under the current pressure gradient, and the filter material is normal.

[0024] Further, when the filter material state is determined to be slowly clogging, the controller controls the motor to drive the first telescopic control shaft body, and the first telescopic rod moves downward to extend, so as to adjust the position of the pressure-adjusted water-permeable filter plate in the filter material layer.

[0025] When the filter material state is determined to be gradually clogging, the position of the water-permeable filter plate is adjusted through the second telescopic control shaft body, so as to prevent local water flow short circuit caused by displacement of the pressure-adjusted water-permeable steel plate.

[0026] The present application has the following beneficial effects:

[0027] The filter material performance strengthening system and the online comprehensive evaluation method have the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings constituting a part of the specification of the present application are used to provide further understanding of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0029] Figure 1 It is a structural diagram of the present application.

[0030] Figure 2 It is a large sample diagram of the pressure-adjusted filter plate set.

[0031] Wherein, 1a is a first valve, 1b is a second valve, 1c is a third valve, 1d is a fourth valve, 1e is a fifth valve, 2a is a first online turbidity meter, 2b is a second online turbidity meter, 2c is a third online turbidity meter, 3a is a first online pressure gauge, 3b is a second online pressure gauge, 3c is a third online pressure gauge, 3d is a fourth online pressure gauge, 4 is a controller, 5 is a motor, 6 is a first telescopic control shaft body, 7 is a first telescopic rod, 8 is a second telescopic control shaft body, 9 is a second telescopic rod, 10 is a pressure regulating water passing steel plate, 11 is a water passing porous filter plate, 12 is a thickened supporting porous plate, 13 is a filter head, 14 is an exhaust valve, 101 is a water inlet pipe intelligent flowmeter, 102 is a water outlet pipe, 103 is a backwashing water inlet pipe, 104 is a backwashing air inlet pipe, and 105 is a backwashing drain pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the terms "include" and "contain" indicate the existence of described features, whole, steps, operations, elements and / or components, but do not exclude the existence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0034] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, unless otherwise clear from the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0035] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0036] It should be understood that, although the terms first, second, third, etc. can be used herein to describe various ranges or elements, these ranges or elements should not be limited by these terms. These terms are only used to distinguish one range or element from another. For example, a first range could be termed a second range without departing from the scope of the embodiments of the present application, similarly, a second range could be termed a first range.

[0037] The word "if" can be interpreted to mean "upon" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [a stated condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [the stated condition or event]" or "in response to detecting [the stated condition or event]," depending on the context.

[0038] In order to make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Generally, components of the embodiments of the present application described here and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based upon the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.

[0039] Various structural schematic diagrams according to the disclosed embodiments of the present application are shown in the accompanying drawings. These diagrams are not drawn to scale, in which some details are exaggerated for the purpose of clarity, and some details can be omitted. The shapes of various regions, layers, and their relative sizes and positional relationships shown in the diagrams are only exemplary, and in actuality, they can deviate due to manufacturing tolerances or technical limitations, and regions / layers with different shapes, sizes, and relative positions can be additionally designed by a person of ordinary skill in the art according to actual needs.

[0040] Embodiment One

[0041] Reference Figure 1 and Figure 2The filter material performance strengthening system comprises a filter body, a water inlet pipe, a first valve 1a, a water inlet pipe intelligent flowmeter 101, a first online turbidity instrument 2a, a first online pressure gauge 3a, a backwashing water outlet at the top of the filter body, a backwashing water discharge pipe 105, a second online turbidity instrument 2b, a second online pressure gauge 3b, a second valve 1b, an exhaust valve 14 at the bottom of the filter body, and a fourth online pressure gauge 3d.

[0042] A backwashing water inlet pipe 103 and a backwashing air inlet pipe 104 are arranged at the bottom of the filter body, the backwashing water inlet pipe 103 is connected with the backwashing water inlet at the bottom of the filter body, the backwashing air inlet pipe 104 is connected with the backwashing air inlet of the filter body, the backwashing water inlet pipe 103 is provided with a fifth valve 1e, the backwashing air inlet pipe 104 is provided with a fourth valve 1d, a filter water outlet at the bottom of the filter body is connected with a water outlet pipe 102, and the water outlet pipe 102 is provided with a third valve 1c, a third online turbidity instrument 2c, and a third online pressure gauge 3c.

[0043] The filter body is sequentially provided with a pressure regulating water passing steel plate 10, a water passing porous filter plate 11, a filter material layer, a thickened supporting porous plate 12, and a plurality of filter heads 13 from top to bottom, the top of the filter body is provided with a motor 5, an output shaft of the motor 5 is connected with one end of a first telescopic control shaft body 6 and a first telescopic rod 7, the other end of the first telescopic rod 7 is connected with one end of a second telescopic control shaft body 8 and a second telescopic rod 9, the other end of the second telescopic rod 9 is connected with the water passing porous filter plate 11, and the second telescopic control shaft body 8 is installed on the pressure regulating water passing steel plate 10.

[0044] It should be noted that the output end of the motor 5 is connected with the first telescopic control shaft body 6 for controlling the length of the first telescopic rod 7.

[0045] The pressure regulating water passing steel plate 10 is provided with the second telescopic control shaft body 8 for controlling the length of the second telescopic rod 9, and the controller 4 automatically controls the second telescopic rod 9 to adjust the pressure applied by the water passing porous filter plate 11 to the filter material layer, so as to strengthen the performance of the filter material.

[0046] The controller 4 controls the motor 5, the first valve 1a, the second valve 1b, the third valve 1c, the fourth valve 1d, the fifth valve 1e, the first telescopic control shaft body 6 and the second telescopic control shaft body 8 according to the readings of the first online turbidity meter 2a, the second online turbidity meter 2b, the third online turbidity meter 2c, the first online pressure gauge 3a, the second online pressure gauge 3b, the third online pressure gauge 3c and the fourth online pressure gauge 3d. The motor 5 drives the first telescopic control shaft body 6 to extend or retract to adjust the relative position of the pressure-adjusting water passing steel plate 10 and the filter material layer. When it is necessary to intensify the compaction of the filter material to cope with high turbidity or the initial stage of blockage, the first telescopic rod 7 is extended, the pressure-adjusting water passing steel plate 10 exerts pressure on the filter material layer, and the water flow is forced to penetrate the filter material layer more uniformly, thereby improving the effect of intercepting impurities. At the same time, the second telescopic control shaft body 8 moves in coordination to adjust the relative position of the water passing porous filter plate 11, prevent local water flow short circuit caused by the displacement of the pressure-adjusting water passing steel plate 10, and ensure the uniformity of filtration.

[0047] The working process of the filter material performance intensifying system is as follows:

[0048] S1: The controller 4 controls the motor 5 to drive the first telescopic control shaft body 6, and the first telescopic rod 7 moves to preliminarily adjust the position of the pressure-adjusting water passing steel plate 10 in the filter tank.

[0049] S2: According to the real-time filter material performance evaluation model analysis, if the filter material filtration performance decreases, the compaction of the filter material needs to be intensified, the controller 4 controls the motor 5 to adjust the extension of the first telescopic rod 7, the pressure-adjusting water passing steel plate 10 exerts greater pressure on the filter material layer, the water flow is forced to penetrate the filter material layer more uniformly, and the filtration effect is improved.

[0050] S3: As the filtration time increases, the filter material filtration performance continuously decreases, and the filter material gradually blocks, the second telescopic rod 9 is controlled to extend by the second telescopic control shaft body 8 to adjust the position of the water passing porous filter plate 11, prevent local water flow short circuit caused by the displacement of the pressure-adjusting water passing steel plate 10, and ensure the uniformity of filtration.

[0051] Example two

[0052] The online comprehensive evaluation method of the filter material performance intensifying system includes:

[0053] 1) Constructing a filter material pressure model;

[0054] The specific operation of step 1) is as follows:

[0055] It is assumed that the filter material is a uniform porous medium, the porosity of the filter material is ε, the porosity of the filter material naturally placed is ε0, the thickness of the filter material layer is h, the pressure applied to the filter material is P, and the compression modulus of the filter material is E.

[0056] According to the theory of elasticity, when pressure is applied to the filter material, the filter material will be compressed, and the porosity will change. The change in porosity Δε and the pressure P can be approximately represented by the following linear relationship:

[0057]

[0058] The porosity ε of the filter material under the action of pressure is:

[0059]

[0060] Since the pollution of the filter material will affect its compressibility, a pollution coefficient C is introduced to correct the above relationship. When the filter material is polluted, the pollutants will fill the pores and make the filter material more rigid, and its compression modulus E will increase.

[0061] It is assumed that there is a linear relationship between the compression modulus E and the pollution coefficient C as follows:

[0062] E = E0(1 + kC) (3)

[0063] where E0 is the compression modulus of clean filter material, C is the pollution coefficient, dimensionless, C = 0 indicates that the filter material is completely clean, C = 1 indicates that the filter material is completely blocked, and k is a constant greater than 0, indicating the degree of influence of pollution on the compression modulus;

[0064] Substituting equation (3) into equation (2) gives:

[0065]

[0066] According to Darcy's law, the filtration velocity v is related to the porosity and the pressure P as follows:

[0067]

[0068] where k0 is the permeability coefficient of the filter material, and μ is the dynamic viscosity of the fluid;

[0069] Substituting equation (4) into equation (5) gives:

[0070]

[0071] The above equation represents a mathematical relationship model of the change in filtration velocity of the filter material under the action of pressure, i.e. the filter material pressure model, which helps to understand how the change in pressure affects the filtration performance, so as to reasonably control the pressure according to the degree of pollution of the filter material in practical application, and optimize the filtration process.

[0072] 2) Estimate according to the filter material pressure model;

[0073] The specific operation of step 2) is as follows:

[0074] 21) Data acquisition system setup: Use a data acquisition card or module that can adapt to the sensor signal, connect the pressure gauge and turbidity meter signals, realize real-time data acquisition and conversion, transmit the data to the controller analysis processing unit, set the appropriate collection period, and automatically add time stamps to the collected data for subsequent time series analysis.

[0075] 22) Data processing: The controller analysis processing unit filters the collected pressure data, removes high-frequency noise interference caused by pipeline vibration, pump start and stop, restores the true pressure change trend, and for turbidity data, linear or nonlinear compensation correction is performed according to the sensor calibration curve to correct measurement deviations caused by sensor aging, environmental temperature and humidity.

[0076] 23) Construction of filter material pressure model: Determine the corresponding function relationship between the filter material pressure in the box and the filtration rate Therefore, the v(P) change curve is established, and by observing the change of the curve slope, the degree of filter material plugging can be evaluated. The smaller the absolute value of the slope, the smaller the flow velocity under the current pressure gradient, and the filter material is slowly plugged. The larger the absolute value of the slope, the larger the flow velocity under the current pressure gradient, and the filter material is normal.

[0077] 24) Establish a filter material performance evaluation model, collect data of the filter under normal operating conditions, construct a filter material performance evaluation model with pressure-turbidity-filtration rate as the coordinate axis, and clearly define the parameter range and boundary corresponding to different states of the filter material.

[0078] 25) Data analysis and diagnosis, draw the recent v(P) change curve model, analyze the curve slope, fluctuation variance and other characteristic indexes, analyze the gradual plugging of filter material, adsorption performance decay or external accidental interference, and develop appropriate solutions for different fault causes. When the filter material state is judged to be slowly plugged, the controller controls the motor to drive the first telescopic control shaft body 6, and the first telescopic rod 7 moves downward to extend, adjusts the position of the pressure-adjusted water-permeable filter plate 11 in the filter material layer, and improves the filtration effect. When the filter material state is judged to be gradually plugged, adjust the position of the water-permeable filter plate 11 through the second telescopic control shaft body 8 to prevent local water flow short circuit caused by displacement of the pressure-adjusted water-permeable steel plate 10, and ensure the uniformity of filtration. When the filter material state is judged to be plugged, arrange a regular backwashing process. For adsorption performance decay, consider replacing part of the filter material layer to enhance filtration efficiency; if the filter material is damaged, emergency shutdown and rapid filter replacement operation are organized; if it is caused by external interference, optimize the front-end pretreatment link.

[0079] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

[0080] It is to be understood that the application is not limited to the precise construction herein described and as shown in the attached drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is indicated only by the subjoined claims.

[0081] The above description is only the preferred embodiment of the present application, not any limitation to the present application, any simple modification, change and equivalent structure change according to the technical essence of the present application to the above embodiment, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A filter media performance enhancement system, characterized in that: It comprises a filter body, a first telescopic control shaft (6), a first telescopic rod (7), a second telescopic control shaft (8) and a second telescopic rod (9); The filter body is provided with a pressure regulating water-passing steel plate (10), a water-passing porous filter plate (11), a filter material layer, a thickened supporting porous plate (12) and a plurality of filter heads (13) in sequence from top to bottom. A motor (5) is provided on the top of the filter body. The output shaft of the motor (5) is connected to one end of a first telescopic rod (7) via a first telescopic control shaft (6). The other end of the first telescopic rod (7) is connected to one end of a second telescopic rod (9) via a second telescopic control shaft (8). The other end of the second telescopic rod (9) is connected to the water-passing porous filter plate (11). The second telescopic control shaft (8) is installed on the pressure regulating water-passing steel plate (10). The motor (5) is provided with a controller (4) for controlling the motor (5).

2. The filter media performance enhancement system according to claim 1, characterized in that: The filter further comprises a water inlet pipe and a water outlet pipe (102), wherein the water inlet pipe is connected to the water inlet at the top of the filter body via a first valve (1a), a water inlet pipe intelligent flow meter (101), a first online turbidity meter (2a) and a first online pressure gauge (3a); the filtered water outlet at the bottom of the filter body is connected to the water outlet pipe (102), and the water outlet pipe (102) is provided with a third valve (1c), a third online turbidity meter (2c) and a third online pressure gauge (3c).

3. The filter media performance enhancement system according to claim 1, characterized in that: The filter further comprises a backwash drain pipe (105), a backwash air inlet pipe (104) and a backwash water inlet pipe (103); the backwash drain port at the top of the filter body is connected to the backwash drain pipe (105); a second online turbidity meter (2b), a second online pressure gauge (3b) and a second valve (1b) are provided on the backwash drain pipe (105); the backwash air inlet pipe (104) is connected to the backwash air inlet of the filter body; a fifth valve (1e) is provided on the backwash water inlet pipe (103); and a fourth valve (1d) is provided on the backwash air inlet pipe (104).

4. The filter media performance enhancement system according to claim 1, characterized in that: An exhaust valve (14) and a fourth online pressure gauge (3d) are provided at the bottom of the filter body.

5. A method for operating the filter media performance enhancement system according to claim 1, characterized in that: The specific working process is: S1: The controller (4) controls the motor (5) to drive the first telescopic control shaft (6), the first telescopic rod (7) moves, and preliminarily adjusts the position of the pressure regulating water-passing steel plate (10) in the filter tank; S2: When the filtering performance of the filter material decreases, it is necessary to strengthen the compaction of the filter material. The controller (4) controls the motor (5) to adjust the extension of the first telescopic rod (7), and applies greater pressure to the filter material layer through the pressure-adjusting water-passing steel plate (10), forcing the water flow to penetrate the filter material layer more evenly. S3: As the filtration time increases, the filtration performance of the filter material continues to decrease and the filter material gradually becomes clogged. The second telescopic control shaft (8) is used to control the extension of the second telescopic rod (9) to adjust the position of the water-passing porous filter plate (11) to prevent local water flow short-circuiting caused by the displacement of the pressure-adjusting water-passing steel plate (10).

6. An online comprehensive evaluation method for the filter media performance enhancement system according to claim 1, characterized in that: The following steps are involved: Constructing a filter material pressure model, wherein the filter material pressure model is a mathematical relationship model of the change in filtration speed of the filter material under pressure; The condition of the filter media is evaluated according to the filter media pressure model.

7. The online comprehensive evaluation method for the filter media performance enhancement system according to claim 6, characterized in that: The filter material pressure model is expressed as: Among them, v is the filtration speed, k0 is the permeability coefficient of the filter material, is the dynamic viscosity of the fluid, E0 is the compression modulus of the clean filter material, C is the contamination coefficient, k is a constant greater than 0, 0 is the porosity of the filter media when placed naturally, h is the thickness of the filter media layer, and P is the pressure applied by the facility on the filter media.

8. The online comprehensive evaluation method for the filter media performance enhancement system according to claim 7, characterized in that: draw Change curve, by observing the change in the slope of the curve, the degree of clogging of the filter material can be evaluated.

9. The online comprehensive evaluation method for the filter media performance enhancement system according to claim 8, characterized in that: When the absolute value of the slope is smaller, it means that under the current pressure gradient, the flow rate is smaller and the filter material is slowly clogged; when the absolute value of the slope is larger, it means that under the current pressure gradient, the flow rate is larger and the filter material is in normal condition.

10. The online comprehensive evaluation method for the filter media performance enhancement system according to claim 8, characterized in that: When the filter material state is judged to be slowly blocked, the controller controls the motor to drive the first telescopic control shaft (6), and the first telescopic rod (7) moves downward and extends, adjusting the pressure to adjust the position of the water-permeable porous filter plate (11) in the filter material layer; When the filter material state is judged to be progressively blocked, the position of the water-passing porous filter plate (11) is adjusted through the second telescopic control shaft (8) to prevent local water flow short circuit caused by displacement of the pressure-adjusting water-passing steel plate (10).

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