Water quality management and control system and method based on circulating water of wet cooling unit

Abstract

The invention discloses a water quality management and control system and method based on circulating water of a wet cooling unit, and relates to the technical field of water quality management and control, and the system comprises a high-precision online monitoring device, laboratory detection equipment, an electrochemical analysis unit, a simulation experiment platform, a microscopic analysis instrument, computational fluid dynamics software and a mathematical model establishment module; the high-precision online monitoring device is used for regularly monitoring the pH value, dissolved oxygen and ion concentration of circulating water in real time; and the laboratory detection equipment is connected to the high-precision online monitoring device and is used for providing supplementary data. A comprehensive and efficient wet cooling unit circulating water quality management and control system is constructed, and the safety and economic benefits of power production are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality control, and in particular to a water quality control system and method based on the circulating water of a wet cooling unit. Background Art

[0002] In modern power production, wet cooling units play a crucial role. However, their circulating water systems face severe water quality problems. During the operation of the circulating water, various substances dissolved in the water and the mixed impurities will cause corrosion and scaling of the equipment. This not only affects the normal operation of the equipment but also brings many adverse consequences.

[0003] Corrosion will thin the metal parts of the equipment, reduce their strength, cause safety hazards such as leakage, increase the equipment maintenance cost, and may even lead to sudden equipment failures, affecting the stable operation of the unit, resulting in unplanned outages, and bringing huge economic losses to the enterprise. Scaling will reduce the heat transfer efficiency of the heat exchanger, lower the vacuum degree of the unit, affect the economy of the unit, and increase the power generation cost.

[0004] Taking Huaneng Lanzhou Fanping Thermal Power Co., Ltd. as an example, during the operation of its #1 and #2 units, affected by the local water quality conditions and operating environment, the harm of the circulating water quality to the equipment is relatively prominent. According to statistics, due to corrosion and scaling problems, the number of equipment repairs has increased, the maintenance cost has remained high, and at the same time, the operating efficiency of the unit has decreased. Therefore, in-depth research on the impact of circulating water quality on equipment and seeking effective countermeasures are of great significance for ensuring the safe and economic operation of wet cooling units. Summary of the Invention

[0005] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, the abstract of the specification and the title of the invention of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above existing problems, the present invention is proposed.

[0007] Therefore, the present invention provides a water quality control system and method based on the circulating water of a wet cooling unit, which can solve the problems mentioned in the background art.

[0008] To solve the above technical problems, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides a water quality control system based on the circulating water of a wet cooling unit, which includes a high-precision on-line monitoring device, laboratory testing equipment, an electrochemical analysis unit, a simulation experiment platform, a microscopic analysis instrument, computational fluid dynamics software, and a mathematical model establishment module;

[0010] The high-precision on-line monitoring device is used for real-time and regular monitoring of the pH value, dissolved oxygen and ion concentration of circulating water.

[0011] The laboratory testing equipment is connected to the high-precision on-line monitoring device to provide supplementary data.

[0012] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the electrochemistry analysis unit is connected to the high-precision on-line monitoring device and the laboratory testing equipment for analyzing data on metal corrosion behavior.

[0013] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the simulation experiment platform includes facilities for reproducing the working conditions of wet cooling units and equipment for setting diverse water quality conditions, and is used for observing the corrosion and scaling conditions of materials.

[0014] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the microscopic analysis instrument is connected to the simulation experiment platform for studying the characteristics of corrosion products and scale samples.

[0015] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the computational fluid dynamics software is connected to the simulation experiment platform for simulating the flow field, temperature and concentration distribution of the circulating water system.

[0016] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the mathematical model establishment module is connected to the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform and the computational fluid dynamics software for calculating the influence of water quality parameter changes on the corrosion and scale layer growth rates.

[0017] As a preferred embodiment of the water quality control system based on the circulating water of wet cooling units according to the present invention, wherein: the high-precision on-line monitoring device is also used for conducting on-site tests in the circulating water system of power plant units and monitoring the equipment operation status and water quality change effects; the mathematical model establishment module is used for guiding the design and evaluation of the on-site tests.

[0018] In a second aspect, the present invention provides a water quality control method based on the circulating water of wet cooling units, which includes: the high-precision on-line monitoring device monitors the pH value, dissolved oxygen and ion concentration of the circulating water system of power plant units in real time and regularly, and transmits the obtained data to the laboratory testing equipment for supplementary analysis;

[0019] The electrochemistry analysis unit receives data from the high-precision on-line monitoring device and laboratory testing equipment, conducts quantitative analysis on the metal corrosion behavior, and simultaneously simulates various water quality conditions on the experimental platform to reproduce the working conditions of the wet-cooling unit and observe the corrosion and scaling conditions of the materials.

[0020] The microscopic analysis instrument is connected to the simulation experimental platform to study the characteristics of the corrosion products and scale samples generated by the simulation experimental platform. The computational fluid dynamics software simultaneously simulates the flow field, temperature, and concentration distribution of the circulating water system. The results of both are fed back to the mathematical model establishment module.

[0021] The mathematical model establishment module integrates all the data provided by the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experimental platform, and the computational fluid dynamics software, calculates the influence of water quality parameter changes on the corrosion and scale layer growth rates, guides the design of on-site tests, and conducts on-site tests in the circulating water system of the power plant unit through the high-precision on-line monitoring device to monitor the equipment operation status and the water quality change effect.

[0022] In a third aspect, the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and: when the processor executes the computer program, the steps of the water quality control system based on the circulating water of the wet-cooling unit are implemented.

[0023] In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and: when the computer program is executed by a processor, the steps of the water quality control system based on the circulating water of the wet-cooling unit are implemented.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: By deploying high-precision on-line monitoring devices, real-time monitoring of key water quality parameters in the circulating water system is achieved, enabling operators to promptly grasp the dynamic changes in water quality and guide subsequent water quality management decisions, thereby preventing equipment corrosion or scaling problems caused by sudden water quality changes, ensuring the stable operation of wet cooling units and extending the service life of equipment; An electrochemical analysis unit is introduced to accurately quantify metal corrosion behavior, and different water quality conditions are set on the simulation experiment platform to reproduce actual working conditions, which helps to deeply understand the corrosion and scaling mechanisms of materials under different conditions and improves the reliability and safety of the system; Microscopic analysis instruments are used to study the characteristics of corrosion products and scale samples, and computational fluid dynamics software is combined to simulate the real fluid environment. These research results together constitute a complete map of water quality influencing factors, enhancing the prediction ability of corrosion and scaling phenomena, making water quality control more accurate and effective, and reducing unnecessary maintenance costs; The mathematical model establishment module integrates multi-source data to achieve a quantitative assessment of how water quality parameter changes affect corrosion and scale growth rates, promoting the application of interdisciplinary knowledge. Based on this model, a more scientific and reasonable on-site test plan can be designed, enhancing the adaptability and flexibility of water quality control methods, ensuring the effectiveness and pertinence of control strategies, and at the same time providing data support and technical means for continuous improvement; In summary, the invention constructs a comprehensive and efficient water quality control system for the circulating water of wet cooling units, significantly improving the safety and economic benefits of power production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 FIG. [X] is a system structure diagram of a water quality control system and method based on the circulating water of a wet cooling unit provided by an embodiment of the present invention;

[0027] Figure 2 FIG. [Y] is an internal structure diagram of a computer device of a water quality control system and method based on the circulating water of a wet cooling unit provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the above objects, features, and advantages of the present invention more understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0029] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0031] Example 1, referring to Figure 1 - Figure 2 , which is the first embodiment of the present invention. This embodiment provides a water quality control system based on the circulating water of a wet-cooling unit, including:

[0032] This application can effectively solve the above-mentioned problems. Next, multiple embodiments will be used to elaborate in detail how to implement the water quality control system based on the circulating water of the wet-cooling unit;

[0033] Figure 1 Figure 1 shows a system structure diagram of a water quality control system and method based on the circulating water of a wet-cooling unit, including: a high-precision online monitoring device, laboratory testing equipment, an electrochemical analysis unit, a simulation experiment platform, a microscopic analysis instrument, computational fluid dynamics software, and a mathematical model establishment module;

[0034] The high-precision online monitoring device is used to monitor the pH value, dissolved oxygen, and ion concentration of the circulating water in real time and periodically;

[0035] The laboratory testing equipment is connected to the high-precision online monitoring device to provide supplementary data.

[0036] Furthermore, the electrochemical analysis unit is connected to the high-precision online monitoring device and the laboratory testing equipment for analyzing data on metal corrosion behavior.

[0037] Furthermore, the simulation experiment platform includes facilities for reproducing the working conditions of the wet-cooling unit and equipment for setting diverse water quality conditions, and is used to observe the corrosion and scaling conditions of materials.

[0038] Further, the microscopic analysis instrument is connected to the simulation experiment platform for studying the characteristics of corrosion products and scale samples.

[0039] Further, the computational fluid dynamics software is connected to the simulation experiment platform for simulating the flow field, temperature, and concentration distribution of the circulating water system.

[0040] Further, the mathematical model establishment module is connected to the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform, and the computational fluid dynamics software for calculating the influence of water quality parameter changes on the corrosion and scale layer growth rates.

[0041] Further, the high-precision on-line monitoring device is also used to conduct on-site tests in the circulating water system of the power plant unit and monitor the equipment operation status and water quality change effect; the mathematical model establishment module is used to guide the design and evaluation of the on-site tests.

[0042] Further, this embodiment also provides a water quality control method based on the circulating water of a wet-cooled unit, including:

[0043] The high-precision on-line monitoring device monitors the pH value, dissolved oxygen, and ion concentration of the circulating water system of the power plant unit in real time and regularly, and transmits the obtained data to the laboratory testing equipment for complementary analysis;

[0044] The electrochemistry analysis unit receives the data from the high-precision on-line monitoring device and the laboratory testing equipment, conducts quantitative analysis on the metal corrosion behavior, and at the same time, the simulation experiment platform sets diverse water quality conditions to reproduce the working conditions of the wet-cooled unit and observe the material corrosion and scaling conditions;

[0045] The microscopic analysis instrument is connected to the simulation experiment platform to study the characteristics of the corrosion products and scale samples generated by the simulation experiment platform. The computational fluid dynamics software synchronously simulates the flow field, temperature, and concentration distribution of the circulating water system, and both results are fed back to the mathematical model establishment module;

[0046] The mathematical model establishment module integrates all the data provided by the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform, and the computational fluid dynamics software, calculates the influence of water quality parameter changes on the corrosion and scale layer growth rates, guides the design of on-site tests, and conducts on-site tests in the circulating water system of the power plant unit through the high-precision on-line monitoring device to monitor the equipment operation status and water quality change effect.

[0047] This embodiment also provides a computer device, which can be a terminal, and its internal structure diagram can be as Figure 2As shown in the figure. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be achieved through WIFI, carrier network, NFC (Near Field Communication) or other technologies. When the computer program is executed by the processor, it realizes a water quality control system based on the circulating water of a wet cooling unit. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0048] This embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by the processor, the following steps are realized: The high-precision on-line monitoring device monitors the acidity, dissolved oxygen and ion concentration of the circulating water system of the power plant unit in real time and regularly, and transmits the obtained data to the laboratory testing equipment for supplementary analysis;

[0049] The electrochemistry analysis unit receives the data from the high-precision on-line monitoring device and the laboratory testing equipment, quantitatively analyzes the metal corrosion behavior, and at the same time sets diverse water quality conditions on the simulation experiment platform to reproduce the working conditions of the wet cooling unit and observe the material corrosion and scaling conditions;

[0050] The microscopic analysis instrument is connected to the simulation experiment platform to study the characteristics of the corrosion products and scale samples generated by the simulation experiment platform. The computational fluid dynamics software synchronously simulates the flow field, temperature and concentration distribution of the circulating water system, and the results of both are fed back to the mathematical model establishment module;

[0051] The mathematical model establishment module integrates all the data provided by the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform and the computational fluid dynamics software, calculates the influence of water quality parameter changes on the corrosion and scale layer growth rate, guides the design of on-site tests, and conducts on-site tests in the circulating water system of the power plant unit through the high-precision on-line monitoring device to monitor the equipment operation status and water quality change effect.

[0052] Example 2, referring to Figure 1 - Figure 2 , is the second embodiment of the present invention. This embodiment provides a water quality control system based on the circulating water of a wet cooling unit. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiment.

[0053] To verify the effectiveness and innovation of the water quality control method based on the circulating water of wet-cooling units, a typical power plant was selected as the experimental site. This power plant has multiple wet-cooling units with complex and variable operating conditions, so it is very suitable for testing the content of the present invention. During the implementation process, a high-precision on-line monitoring device (HOMD) was first deployed to continuously monitor key parameters such as the pH value, dissolved oxygen (DO), and ion concentration of the circulating water system, and samples were regularly collected and sent to the laboratory testing equipment (LTD) for supplementary analysis. Subsequently, a quantitative analysis module for metal corrosion behavior was set up in the electrochemistry analysis unit (ECAU). This module received data from the HOMD and LTD and accurately measured the metal corrosion rate. At the same time, the simulation experiment platform (SEP) adjusted the water quality conditions according to the actual working conditions, including factors such as temperature, pressure, and water flow rate, to observe the corrosion and scaling conditions of materials under different conditions. In addition, a microscopic analysis instrument (MAI) was used to conduct a detailed characterization study on the corrosion products and scale samples obtained from the SEP, revealing the microscopic structure of the corrosion products and their formation mechanism.

[0054] To further understand the internal hydrodynamic characteristics of the circulating water system, computational fluid dynamics (CFD) software was used for numerical simulation to reproduce the flow field, temperature, and concentration distribution in the circulating water. All these data were finally input into the mathematical model building module (MMBM), and through comprehensive analysis, a prediction model for the impact of water quality changes on the corrosion and scale growth rate was formed. Based on this model, a series of on-site tests were designed to evaluate the actual effect of the water quality control measures, and the HOMD was used to continuously monitor the equipment operation status and water quality changes to ensure the authenticity and reliability of the experimental results.

[0055] In the specific operation, a control group and an experimental group were set for each wet-cooling unit respectively. The former maintained the original water quality management strategy unchanged, while the latter strictly implemented the newly proposed water quality control method. The entire experimental period was 6 months, and comprehensive data records were made once a week during this period, including but not limited to important indicators such as pH value, DO level, total hardness, chloride ion concentration, calcium and magnesium ion concentration, and iron and copper ion content. At the same time, water samples at specific positions were taken every month and sent to a third-party authoritative agency for independent testing, ensuring the objectivity and fairness of the experimental data.

[0056] Table 1: Comparison Table of Water Quality Parameters

[0057]

[0058]

[0059] Table 2: Comparison Table of Corrosion Rate and Scale Thickness

[0060]

[0061] By carefully analyzing the data in the above two tables, it can be clearly seen the significant improvements brought by the content of the present invention. First of all, in terms of water quality parameters, the pH values of units B to E in the experimental group are relatively low, which indicates that through the optimized water quality management measures, the acid-base balance of the circulating water can be better controlled, thus reducing the risk of metal corrosion caused by pH fluctuations. The dissolved oxygen (DO) levels are generally higher than those in the control group, indicating that the new control method effectively increases the oxygen content in the water, helps to inhibit the reproduction of anaerobic bacteria, and reduces the possibility of biological pollution. At the same time, the concentrations of total hardness (TH), chloride ions (Cl-), calcium and magnesium ions (Ca+Mg), and iron and copper ions (Fe+Cu) have all decreased, meaning that the treated circulating water is purer, reducing the risks of scaling and corrosion.

[0062] Secondly, the data comparison of corrosion rate and scale thickness shows that the corrosion rates of units B to E in the experimental group are significantly lower than those in the control group. The average corrosion rate is only 0.104 mm / a, far lower than 0.2 mm / a of the control group. This result directly reflects the superior performance of the new method in slowing down metal corrosion. Similarly, the scale thickness has also decreased significantly, from 50 μm in the control group to about 33.4 μm on average in the experimental group, proving the effectiveness of this method in preventing scaling. More importantly, by improving the water quality conditions, not only the service life of the equipment is extended to 12 years, but also a stable operating environment is maintained, avoiding the economic losses caused by frequent repairs.

[0063] In summary, the water quality control method provided by the content of the present invention performs excellently in practical applications. Its innovation and advantages are reflected in the following aspects: First, it realizes the precise regulation of key water quality parameters in the circulating water system; second, it greatly reduces the metal corrosion rate and effectively protects the equipment from damage; third, it significantly reduces the scale accumulation and ensures that the heat exchange efficiency is not affected; fourth, through scientific and reasonable water quality management and maintenance strategies, it extends the service life of the equipment and reduces the operating costs. Compared with the existing technologies, the present invention provides a more comprehensive and efficient solution, which is applicable to various types of wet-cooled units and has broad market prospects and development potential.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

[0065] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of the present application can be implemented using various computer languages. For example, object-oriented programming languages such as Java and interpreted scripting languages such as JavaScript, etc.

[0066] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0067] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0068] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0069] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0070] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A water quality control system based on the circulating water of a wet cooling unit, characterized in that: It includes a high-precision on-line monitoring device, laboratory testing equipment, an electrochemistry analysis unit, a simulation experiment platform, a microscopic analysis instrument, computational fluid dynamics software, and a mathematical model establishment module; The high-precision on-line monitoring device is used to monitor the pH value, dissolved oxygen, and ion concentration of circulating water in real time and periodically; The laboratory testing equipment is connected to the high-precision on-line monitoring device to provide supplementary data.

2. The water quality control system based on the circulating water of the wet cooling unit according to claim 1, wherein: The electrochemistry analysis unit is connected to the high-precision on-line monitoring device and the laboratory testing equipment and is used to analyze data on metal corrosion behavior.

3. The water quality control system based on the circulating water of a wet cooling unit according to claim 2, characterized in that: The simulation experiment platform includes facilities for reproducing the working conditions of wet-cooled units and equipment for setting diverse water quality conditions and is used to observe the corrosion and scaling conditions of materials.

4. The water quality control system based on the circulating water of the wet cooling unit according to claim 3, wherein: The microscopic analysis instrument is connected to the simulation experiment platform and is used to study the characteristics of corrosion products and scale samples.

5. The water quality control system based on the circulating water of the wet cooling unit according to claim 4, wherein: The computational fluid dynamics software is connected to the simulation experiment platform and is used to simulate the flow field, temperature, and concentration distribution of the circulating water system.

6. The water quality control system based on the circulating water of the wet cooling unit according to claim 5, wherein: The mathematical model establishment module is connected to the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform, and the computational fluid dynamics software and is used to calculate the influence of water quality parameter changes on the corrosion and scale layer growth rates.

7. The water quality control system based on the circulating water of the wet cooling unit according to claim 6, wherein: The high-precision on-line monitoring device is also used to conduct on-site tests in the circulating water system of power plant units and monitor the equipment operation status and water quality change effects; the mathematical model establishment module is used to guide the design and evaluation of the on-site tests.

8. A water quality control method based on the circulating water of a wet cooling unit, based on the water quality control system of the wet cooling unit circulating water according to any one of claims 1 to 7, characterized in that: It includes that the high-precision on-line monitoring device monitors the pH value, dissolved oxygen, and ion concentration of the circulating water system of power plant units in real time and periodically and transmits the obtained data to the laboratory testing equipment for supplementary analysis; The electrochemistry analysis unit receives data from the high-precision on-line monitoring device and the laboratory testing equipment, conducts quantitative analysis on metal corrosion behavior, and at the same time, the simulation experiment platform sets diverse water quality conditions to reproduce the working conditions of wet-cooled units and observes the corrosion and scaling conditions of materials; The microscopic analysis instrument is connected to the simulation experiment platform to study the characteristics of corrosion products and scale samples generated by the simulation experiment platform, and the computational fluid dynamics software synchronously simulates the flow field, temperature, and concentration distribution of the circulating water system, and the results of both are fed back to the mathematical model establishment module; The mathematical model establishment module integrates all the data provided by the high-precision on-line monitoring device, the electrochemistry analysis unit, the simulation experiment platform, and the computational fluid dynamics software, calculates the influence of water quality parameter changes on the corrosion and scale layer growth rates, guides the design of on-site tests, and conducts on-site tests in the circulating water system of power plant units through the high-precision on-line monitoring device to monitor the equipment operation status and water quality change effects.

9. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that: When the processor executes the computer program, it realizes the steps of the water quality control system based on the circulating water of wet-cooled units according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it realizes the steps of the water quality control system based on the circulating water of wet-cooled units according to any one of claims 1 to 7.

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