Novel pipeline simulation system reactor and application method thereof

Abstract

The invention provides a novel pipeline simulation system reactor and an application method thereof. The novel pipeline simulation system reactor is used for providing an experimental platform for biofilm formation and pipe corrosion research. Wherein the BAR reactor comprises an annular reaction barrel, a stirring device and an elbow glass tube. According to the method, the research cost and the technical threshold are reduced by simplifying experimental equipment and an operation process. The reaction barrel structure of the annular barrel column is adopted, a closed circulating water flow environment is provided, and different physical conditions are simulated by adjusting the water flow speed. A specially-made small elbow glass tube is installed in the reaction barrel and used for accurately measuring the water flow speed, and therefore the influence of water flow on biofilm formation and pipe corrosion is controlled and researched. Through the relation between the water flow speed and the rotating speed of the reaction barrel, the accuracy and reliability of the experiment are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of biofilm research in a water supply system, and in particular to a biofilm reactor and an application method thereof. Background Art

[0002] In the operation and maintenance of water supply systems, biofilm formation and pipe corrosion are two closely related phenomena that have a profound impact on the safety and efficiency of the system. Biofilm is a layer of sticky biomass formed by the accumulation of microorganisms on the inner surface of the pipe. It not only reduces the efficiency of water flow and increases energy consumption, but also may become a habitat for pathogenic microorganisms, affecting the safety of water supply. At the same time, the presence of biofilm can accelerate the corrosion process of pipes, resulting in a shortened life of the water supply network, increased maintenance costs, and even the serious consequence of water supply interruption.

[0003] Existing research tools and methods have certain limitations in studying biofilm formation and pipe corrosion in water supply systems, leading to the following problems:

[0004] (1) First, cost is an important limiting factor. High-end experimental equipment is often expensive, not only the initial purchase cost is high, but also requires a lot of capital investment in operation and maintenance.

[0005] (2) Secondly, operational complexity is another problem. Many research equipment and technologies require operators to have professional technical knowledge and experience, which limits their popularization in a wider range of research and application fields.

[0006] (3) Finally, the accuracy issue cannot be ignored. Existing methods often fail to achieve high accuracy and reproducibility when simulating real water supply system conditions, which affects the reliability and validity of the research results. Summary of the invention

[0007] The purpose of the present invention is to provide a biofilm reactor (BAR) that provides a more accurate and low-cost experimental platform for the study of biofilm formation and pipe corrosion in water supply systems, allowing researchers to observe and analyze the biofilm formation process and its effect on pipe corrosion in a controlled experimental environment.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A novel pipeline simulation system reactor is used to provide an experimental platform for biofilm formation and pipe corrosion research, comprising an annular reaction barrel, a stirring device and an elbow glass tube; the annular reaction barrel is used to simulate a pipeline, a water inlet is provided on one side of the annular reaction barrel, a water outlet is provided at the bottom of the annular reaction barrel, water flow is introduced into the annular reaction barrel to simulate the closed-loop water flow environment in the pipeline; the stirring device is arranged at the center of the annular reaction barrel to maintain the continuous circulation of the water flow and control the flow rate; the elbow glass tube is placed in the annular reaction barrel to inject water flow, obtain water level data of the water flow, and thus measure the water flow velocity; the elbow glass tube comprises a vertical pipe section and a horizontal pipe section, the vertical pipe section is vertically connected to the horizontal pipe section as a whole and communicated, the pipe mouth of the horizontal pipe section serves as a water flow inlet, and the vertical pipe section is provided with a scale to measure the water level of the water flow flowing into the pipe mouth of the horizontal pipe section.

[0010] Preferably, at least two groups of vertically placed hanging plates are provided in the annular reaction barrel, and the hanging plates are attached to the inner wall of the annular reaction barrel, and the hanging plates are used to simulate surface physical and chemical properties and biological coatings; the horizontal pipe section of the elbow glass tube is in close contact with the hanging plates and is used as a water inlet.

[0011] Preferably, the stirring device comprises a stirring paddle, and the stirring paddle is arranged on the central axis of the annular reaction barrel, and the stirring paddle is connected to the driving device outside the annular reaction barrel through a driving shaft.

[0012] Preferably, the stirring paddle adopts a spiral fan with at least four blades.

[0013] Preferably, a funnel is provided at the bottom of the annular reaction barrel, and the bottom of the funnel is connected to the water outlet at the bottom of the annular reaction barrel.

[0014] Preferably, the vertical tube section of the elbow glass tube is 20 cm, the horizontal tube section of the elbow glass tube is 3 cm, and the diameter of the elbow glass tube is 1 cm.

[0015] Preferably, the annular reaction barrel adopts an annular barrel column made of acrylic material.

[0016] The present invention also provides an application method of a novel pipeline simulation system reactor, the method is as follows:

[0017] Step S0: Installation:

[0018] Step S01: Assembling the annular reaction barrel: rinsing all parts of the annular reaction barrel and correctly assembling them into an annular structure;

[0019] Step S02: Installing a stirring device: installing a stirring paddle at the center of the annular reaction barrel, and connecting the driving device outside the annular reaction barrel to the stirring paddle via a driving shaft so that the driving device is stable and can rotate freely;

[0020] Step S03: inserting the elbow glass tube: inserting the elbow glass tube into the annular reaction barrel so that the horizontal tube section of the elbow glass tube is close to the surface of the hanging piece;

[0021] Step S2: simulating the water flow environment in the water supply system: introducing water flow into the annular reaction barrel, starting the driving device to control the stirring paddle in the annular reaction barrel to maintain the continuous circulation of the water flow and control the flow rate;

[0022] Step S3: Measurement: The mouth of the horizontal pipe section of the elbow glass tube is firstly opposite to the direction of water flow rotation, and then along the direction of water flow, and the height of the water column in the vertical pipe section of the elbow glass tube is respectively recorded and measured;

[0023] Step S3: Calculate the flow rate using the law of conservation of mechanical energy, thereby establishing a relationship between the rotation speed and the water flow velocity, and then establish a fitting curve for analyzing the effect of the shear force of the water flow on the biofilm formation simulated by the hanging sheet in the annular reaction barrel and on the corrosion of the pipe.

[0024] Preferably, step S4 is also included, wherein step S4: adjusting the experimental environment for verification: by changing the rotation speed of the stirring fan in the agitator, recording the height change of the water column in the vertical tube section of the elbow glass tube at different rotation speeds; the measurement at each rotation speed should be repeated to improve the reliability of the data; by analyzing the water flow velocity measured at different rotation speeds, the influence of the water flow shear force on the biofilm formation on the hanging piece in the annular reaction barrel and the corrosion of the pipe; by comparing the corrosion degree of the hanging piece and the growth of the biofilm under different water flow conditions, the action mechanism of the shear force of the water flow is evaluated.

[0025] Preferably, in step S3, when the nozzle of the horizontal pipe section is opposite to the direction of water flow rotation, the water flow enters and rises through the nozzle of the horizontal pipe section, and the kinetic energy of the water flow is converted into potential energy to increase the height of the water column in the vertical pipe section, and the measured height is h1; when the nozzle of the horizontal pipe section is along the direction of the water flow, the water flow promotes the water flow in the nozzle of the horizontal pipe section to flow out, causing the height of the water column in the vertical pipe section to decrease, and the measured height is h2; according to the formula of kinetic energy and potential energy:, the expression of water flow velocity is derived; the measured values ​​of h1 and h2 are substituted into the expression of water flow velocity, and the calculated water flow velocity ν is the average velocity in the two cases.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The present invention reduces research costs and technical barriers by simplifying experimental equipment and operating procedures.

[0028] (2) The present invention adopts an annular barrel column structure to provide a closed-loop water flow environment and simulates different physical conditions by adjusting the water flow velocity.

[0029] (3) A specially made fine curved glass tube is installed inside the reactor of the present invention to accurately measure the water flow velocity, thereby controlling and studying the effect of water flow on biofilm formation and pipe corrosion.

[0030] (4) In addition, the present invention further improves the accuracy and reliability of the experiment by using the law of conservation of mechanical energy to describe the relationship between water flow velocity and reactor rotation speed through a mathematical model. With this design, the BAR reactor can not only be used for basic scientific research to explore the mechanism of biofilm formation and corrosion process, but also provide an experimental basis for engineering applications, such as the design and optimization of water supply systems.

[0031] The present invention simulates the real water supply system environment and conditions, accurately studies the influence of water flow conditions on biofilm formation and pipe corrosion, and provides a scientific basis for the design, operation and maintenance of the water supply system at a low cost. The present invention has high benefits, simple operation and high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a novel pipeline simulation system reactor provided in this embodiment;

[0033] Figure 2 A schematic diagram of the structure of an elbow glass tube in a novel pipeline simulation system reactor provided in this embodiment;

[0034] Figure 3 A fitting diagram of water flow rate and rotation speed in a reactor of a novel pipeline simulation system provided in this embodiment;

[0035] Figure 4 A fitting diagram of the water flow rate and rotation speed in a reactor for verifying a novel pipeline simulation system provided in this embodiment.

[0036] The serial numbers in the figure are as follows:

[0037] 1. Annular reaction barrel; 2. Hanging plate; 3. Water inlet; 4. Water outlet; 5. Stirring paddle; 6. Funnel; 7. Driving shaft; 8. Elbow glass tube; 8-1. Vertical section; 8-2. Horizontal section. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Example

[0040] Figure 1 A schematic diagram of the structure of a novel pipeline simulation system reactor provided in this embodiment.

[0041] Figure 2 A schematic diagram of the structure of an elbow glass tube in a novel pipeline simulation system reactor provided in this embodiment.

[0042] like Figure 1 and Figure 2 As shown, a BAR reactor disclosed in this embodiment is used to provide an experimental platform for biofilm formation and pipe corrosion research, including an annular reaction barrel 1, a stirring device and an elbow glass tube 8.

[0043] The annular reaction barrel 1 adopts an annular barrel column structure made of acrylic material. The annular reaction barrel 1 is used to simulate a pipeline. A water inlet 3 is provided on one side of the annular reaction barrel 1. Water flow is introduced through the water inlet 3. A water outlet 4 is provided at the bottom of the annular reaction barrel 1. A funnel 6 is provided at the bottom of the annular reaction barrel 1. The bottom of the funnel 6 is connected to the water outlet 4 at the bottom of the annular reaction barrel 1. The annular reaction barrel 1 is used to simulate the closed-loop water flow environment in the pipeline.

[0044] In this embodiment, acrylic material is selected to make the annular barrel column because it has good transparency, which is convenient for observing the experimental process, and has sufficient strength and corrosion resistance. The size of the barrel column is 10 cm in diameter, 20 cm in height, and 5 mm in wall thickness, which ensures sufficient experimental space and structural stability. In addition, the selection of acrylic material also takes into account cost and processing convenience.

[0045] At least two groups of vertically placed hanging sheets 2 are arranged in the annular reaction barrel 1. The hanging sheets 2 are attached to the inner wall of the annular reaction barrel 1. The hanging sheets 2 are used to simulate the surface physical and chemical properties and biological film in the pipeline. The horizontal pipe section 8-2 of the elbow glass tube 7 is in close contact with the hanging sheet 2 and is used as a water inlet.

[0046] The stirring device includes a stirring paddle 5, which is a four-blade spiral fan. The stirring paddle 5 is arranged on the central axis of the annular reaction barrel 1. The stirring paddle 5 is connected to the driving device outside the annular reaction barrel 1 through the driving shaft 7. The driving device controls the rotation of the stirring paddle 5 through the driving shaft 7, which is used to continuously circulate the water flow and control the flow rate.

[0047] Further, the present embodiment adopts a ZR4-6 mixer with a rotation speed of 10 to 1100 rpm, a rated power of 180 W, a rated voltage of 220 V, and 60 Hz. The speed gradient is set to 100 to 1100 rpm, and the increment interval is 100 rpm. The ZR4-6 mixer is selected as the stirring device, and its speed range is wide (10 to 1100 rpm), which can meet the simulation requirements of the experiment for different water flow conditions. The rated power and voltage of the drive device ensure its stability and safety during long-term operation. The installation position and angle of the stirring paddle 5 are carefully designed to ensure the uniform distribution of the water flow in the annular reaction barrel 1.

[0048] The elbow glass tube 8 is placed in the annular reaction barrel 1, and is used to pour water into it, obtain water level data of the water flow, and thus measure the water flow velocity. The elbow glass tube 8 includes a vertical pipe section 8-1 and a horizontal pipe section 8-2, the vertical pipe section 8-1 and the horizontal pipe section 8-2 are vertically connected to form a whole and communicated, the pipe mouth of the horizontal pipe section 8-2 serves as a water flow inlet, and a scale is provided on the vertical pipe section 8-1, which is used to measure the water level of the water flow flowing into the pipe mouth of the horizontal pipe section 8-2.

[0049] Further, in this embodiment, the vertical tube section 8-1 of the elbow glass tube 8 is 20 cm, the horizontal tube section 8-2 of the elbow glass tube 8 is 3 cm, and the diameter of the elbow glass tube 8 is 1 cm. The diameter of the elbow glass tube 8 is selected to be 1 cm, which not only ensures the sensitivity of the measurement, but also avoids excessive interference with the water flow state. The vertical tube section 8-1 is scaled to facilitate recording the change in the height of the water column.

[0050] This embodiment also provides an application method of the BAR reactor, the method is as follows:

[0051] Step S0: Installation:

[0052] Step S01: Assembling the annular reaction barrel: All parts of the annular reaction barrel are rinsed and assembled correctly into an annular structure to provide a closed-loop water flow environment, which becomes the core part of the BAR reactor.

[0053] Step S03: Install the stirring device: install the stirring paddle 5 at the center of the annular reaction barrel 1. The driving device outside the annular reaction barrel 1 is connected to the stirring paddle 5 through the driving shaft 7, which is stable and can rotate freely to maintain the continuous circulation of the water flow and control the flow rate.

[0054] Step S04: inserting the elbow glass tube: inserting the elbow glass tube 8 into the annular reaction barrel 1 so that the horizontal tube section 8 - 2 of the elbow glass tube 8 is in close contact with the surface of the hanging piece 2 .

[0055] Step S2: Simulate the water flow environment in the water supply system: introduce 1L of water flow into the annular reaction barrel 1, start the driving device to control the stirring paddle 5 in the annular reaction barrel 1 to maintain the continuous circulation of the water flow and control the flow rate.

[0056] Select a suitable rotation speed according to the experimental needs. Observe whether the water flow forms a stable circulation in the annular reaction barrel 1, and perform the measurement in step S3 after the water flow speed reaches stability.

[0057] Step S3: Insert the elbow glass tube for measurement: When the water is still, mark the water level on the vertical pipe section 8-1 of the elbow glass tube 8 as zero. Start the stirring paddle 5 and maintain for 10-20 seconds. After the water flow stabilizes, first turn the nozzle of the horizontal pipe section 8-2 of the elbow glass tube 8 against the direction of the water flow rotation. The water flow enters and rises through the nozzle of the horizontal pipe section 8-2. The kinetic energy of the water flow is converted into potential energy to increase the height of the water column in the vertical pipe section 8-1. The water level on the vertical pipe section 8-1 of the elbow glass tube 8 at this time is recorded as h1.

[0058] Then the slurry moves the pipe mouth of the horizontal pipe section 8-2 of the elbow glass tube 8 along the direction of the water flow. The water flow helps the water in the pipe mouth of the horizontal pipe section 8-2 to flow out, causing the height of the water column in the vertical pipe section 8-1 to decrease. The water level height on the scale of the vertical pipe section 8-1 of the elbow glass tube 8 is recorded again as h2.

[0059] Step S4: Calculate the flow rate using the law of conservation of mechanical energy, according to the formula of kinetic energy and potential energy: Derive the expression for water velocity Substituting the measured h1 and h2 values ​​into the expression for water flow velocity, the calculated water flow velocity ν is the average velocity in the two cases.

[0060] Step S5: Adjust the experimental environment for verification: By changing the rotation speed of the stirring fan 2 in the stirrer 1, record the height change of the water column in the vertical tube section 8-1 of the elbow glass tube 8 at different rotation speeds. By analyzing the water flow velocity measured at different rotation speeds, evaluate the effect of water flow shear force on biofilm formation and pipe corrosion on the hanging sheet 2 in the annular reaction barrel 1. The experimental results are shown in Table 1;

[0061] Table 1. Relationship between rotation speed and water flow rate

[0062]

[0063]

[0064] For the h1 and h2 values ​​recorded under each experimental condition in the adjustment experiment environment, apply The water flow velocity is calculated by the formula. Considering the possible errors in the experiment, the measurement at each rotation speed should be repeated to improve the reliability of the data.

[0065] Figure 3 A fitting diagram of water flow rate and rotation speed in a reactor of a novel pipeline simulation system provided in this embodiment.

[0066] According to the speed and water flow rate detection results of this embodiment, a fitting curve is established, and the results are as follows: Figure 3 As shown. The correlation coefficient R of the fitting results 2 =0.986, the standard curve is

[0067] Y=0.00335X+0.20473

[0068] The results are highly credible and can be used for subsequent experimental studies on the effects of water flow velocity on the surface physical and chemical properties of coupon 2 and biofilm.

[0069] Figure 4 A fitting diagram of the water flow rate and rotation speed in a reactor for verifying a novel pipeline simulation system provided in this embodiment.

[0070] like Figure 4 As shown, in order to verify the feasibility of this method, another group of annular reaction barrels 1 were selected to modify the type of hanging plate 2 and then continue the process. The correlation analysis between the water flow rate and the rotation speed obtained the results shown in Table 2.

[0071] Table 2. Relationship between rotation speed and water flow rate (verification)

[0072]

[0073]

[0074] The standard curve is Y=0.00359X+0.28867,

[0075] The correlation coefficient R of the fitting results 2 = 0.987, indicating that the method is repeatable and has a highly accurate correlation between water flow rate and rotation speed.

[0076] Based on the calculation results of water flow velocity, the influence of water flow shear force on biofilm formation and pipe corrosion on the hanging piece 2 in the annular reaction barrel 1 is further analyzed. By comparing the corrosion degree of hanging piece 2 and the growth of biofilm under different water flow conditions, the action mechanism of shear force is evaluated. The design and operation parameters of the water supply system are optimized based on the evaluation results.

[0077] Through the expansion of the above-mentioned specific implementation method, the application potential of the BAR reactor of the present invention in the study of biofilm formation and pipe corrosion in water supply systems has been further demonstrated. The method has a high degree of reproducibility, and the water flow rate and the rotation speed have a high correlation, which provides a scientific approach for subsequent research on the influence of water flow rate on the physical and chemical properties and biofilm growth in pipes. The development of this reactor not only provides a new experimental tool for scientific research in related fields, but is also expected to play an important role in practical applications and promote the safer, more efficient and sustainable development of water supply systems.

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new type of pipeline simulation system reactor, used to provide an experimental platform for biofilm formation and pipe corrosion research, characterized in that: It comprises an annular reaction barrel (1), a stirring device and an elbow glass tube (8); The annular reaction barrel (1) is used to simulate a pipeline, a water inlet (3) is provided on one side of the annular reaction barrel (1), a water outlet (4) is provided at the bottom of the annular reaction barrel (1), and water flow is introduced into the annular reaction barrel (1) to simulate a closed-loop water flow environment in a pipeline; The stirring device is arranged at the center of the annular reaction barrel (1) to maintain the continuous circulation of the water flow and control the flow rate; The elbow glass tube (8) is placed in the annular reaction barrel (1) and is used to inject water flow and obtain water level data of the water flow, thereby measuring the water flow velocity; The elbow glass tube (8) comprises a vertical tube section (8-1) and a horizontal tube section (8-2); the vertical tube section (8-1) and the horizontal tube section (8-2) are vertically connected to form an integral body and are in communication; the tube mouth of the horizontal tube section (8-2) serves as a water flow inlet; and a scale is provided on the vertical tube section (8-1) for measuring the water level of the water flow flowing into the tube mouth of the horizontal tube section (8-2).

2. A novel pipeline simulation system reactor according to claim 1, characterized in that: The annular reaction barrel (1) is provided with at least two groups of vertically placed hanging sheets (2), the hanging sheets (2) being attached to the inner wall of the annular reaction barrel (1), and the hanging sheets (2) being used to simulate surface physical and chemical properties and biological coatings; the pipe opening of the horizontal pipe section (8-2) of the elbow glass tube (7) is in close contact with the hanging sheet (2) and is used as a water inlet.

3. A novel pipeline simulation system reactor according to claim 1, characterized in that: The stirring device comprises a stirring paddle (5), wherein the stirring paddle (5) is arranged on the central axis of the annular reaction barrel (1), and the stirring paddle (5) is connected to a driving device outside the annular reaction barrel (1) via a driving shaft (7).

4. A novel pipeline simulation system reactor according to claim 3, characterized in that: The stirring paddle (5) adopts a spiral fan with at least four blades.

5. A novel pipeline simulation system reactor according to claim 1, characterized in that: A funnel (6) is provided at the bottom of the annular reaction barrel (1), and the bottom of the funnel (6) is connected to a water outlet (4) at the bottom of the annular reaction barrel (1).

6. A novel pipeline simulation system reactor according to claim 1, characterized in that: The vertical tube section (8-1) of the elbow glass tube (8) is 20 cm long, the horizontal tube section (8-2) of the elbow glass tube (8) is 3 cm long, and the diameter of the elbow glass tube (8) is 1 cm.

7. A novel pipeline simulation system reactor according to claim 1, characterized in that: The annular reaction barrel (1) adopts an annular barrel column made of acrylic material.

8. A novel application method of a pipeline simulation system reactor, characterized in that: Here’s how: Step S0: Installation: Step S01: Assembling the annular reaction barrel: rinsing all parts of the annular reaction barrel and correctly assembling them into an annular structure; Step S03: Installing a stirring device: installing a stirring paddle (5) at the center of the annular reaction barrel (1), and a driving device outside the annular reaction barrel (1) is connected to the stirring paddle (5) via a driving shaft (7) so that the stirring paddle (5) is stable and can rotate freely; Step S04: inserting the elbow glass tube: inserting the elbow glass tube (8) into the annular reaction barrel (1), so that the horizontal tube section (8-2) of the elbow glass tube (8) is in close contact with the surface of the hanging piece (2); Step S2: simulating the water flow environment in the water supply system: introducing water flow into the annular reaction barrel (1), starting the driving device to control the stirring paddle (5) in the annular reaction barrel (1) to maintain the continuous circulation of the water flow and control the flow rate; Step S3: measuring: the mouth of the horizontal tube section (8-2) of the elbow glass tube (8) is firstly opposite to the direction of water flow rotation, and then along the direction of water flow, and the height of the water column in the vertical tube section (8-1) of the elbow glass tube (8) is respectively recorded and measured; Step S4: Calculate the flow rate using the law of conservation of mechanical energy, thereby establishing a relationship between the rotation speed and the water flow velocity, and then establish a fitting curve for analyzing the influence of the shear force of the water flow on the formation of the simulated biofilm of the hanging sheet (2) in the annular reaction barrel (1) and on the corrosion of the pipe.

9. The application method of the novel pipeline simulation system reactor according to claim 7 is characterized in that: The method further comprises step S5, wherein the step S5: adjusting the experimental environment for verification: by changing the rotation speed of the stirring fan (2) in the stirrer (1), recording the height change of the water column in the vertical tube section (8-1) of the elbow glass tube (8) at different rotation speeds; the measurement at each rotation speed should be repeated to improve the reliability of the data; by analyzing the influence of the water flow shear force on the biofilm formation and pipe corrosion on the hanging plate (2) in the annular reaction barrel (1) through the water flow speed measured at different rotation speeds; and by comparing the corrosion degree of the hanging plate (2) and the growth of the biofilm under different water flow conditions, evaluating the action mechanism of the water flow shear force.

10. The application method of the novel pipeline simulation system reactor according to claim 7 is characterized in that: In step S3, when the nozzle of the horizontal pipe section (8-2) is opposite to the direction of rotation of the water flow, the water flow enters through the nozzle of the horizontal pipe section (8-2) and rises, and the kinetic energy of the water flow is converted into potential energy so that the height of the water column in the vertical pipe section (8-1) increases, and the measured height is h1; When the pipe opening of the horizontal pipe section (8-2) is in the direction of the water flow, the water flow pushes the water flow in the pipe opening of the horizontal pipe section (8-2) to flow out, causing the height of the water column in the vertical pipe section (8-1) to decrease, and the measured height is h2; According to the formula of kinetic energy and potential energy: Derive the expression for water velocity Substituting the measured h1 and h2 values ​​into the expression of the water flow velocity, the calculated water flow velocity ν is the average velocity in the two cases.

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