A system and method for dynamically controlling the concentration ratio of a circulating water cooling system

Abstract

The application discloses a system for dynamically controlling the concentration ratio of a circulating water cooling system, comprising a water quality analysis device and a simulated circulating water concentration device, both of which are connected to the same water supplement pipeline. The simulated circulating water concentration device comprises a dosing component, a simulated container, a first camera component, a temperature control component, a stirring component, a liquid level measuring component and a simulated drain pipe. The first camera component is used to continuously monitor the number of suspended solids and the particle size characteristics of the water in the simulated container to determine the end point of the concentration process or the scaling point. The simulated circulating water concentration device is used to determine the scaling point judgment standard by adjusting the concentration ratio and the amount of dosing, the water quality characteristics and the monitoring results of the first camera component. The scaling point judgment standard is used to achieve accurate non-scaling control of the circulating water cooling system and more accurate and effective control of the concentration process of the circulating water cooling system. The application also discloses a method for dynamically controlling the concentration ratio of a circulating water cooling system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of open cooling liquid system, in particular to a system and method for dynamically controlling the concentration ratio of a circulating water cooling system. BACKGROUND

[0002] Large open cooling water system is a widely used cooling liquid system in various industrial fields, mainly used for heat dissipation of large heat exchange equipment and pumps. According to the "Industrial Circulating Water Treatment Design Specification" (GB / T50050-2017), the concentration ratio of the circulating water cooling system should not be less than 5. Increasing the concentration ratio can improve the discharge capacity of the circulating water cooling system and achieve the purpose of water saving and emission reduction. However, blindly increasing the concentration ratio will increase the control difficulty of the circulating water cooling system, leading to increased corrosion of the system, which is not conducive to the economic operation of the circulating water cooling system.

[0003] The control of the concentration ratio of the circulating water cooling system generally adopts the method of calculating the limiting concentration ratio, that is, whether the difference △A between the chloride ion concentration ratio and the calcium ion (alkalinity, calculated as calcium carbonate) concentration ratio is greater than 0.2 to determine whether the limiting concentration ratio is reached. Then, the limiting concentration ratio multiplied by 0.85 is used as the actual system control operation concentration ratio. At present, this control method has several problems: first, most of the scale inhibitors on the market are non-phosphorus type scale inhibitors, that is, the phosphonate content is less than 2.0%. They mainly prevent calcium and magnesium ions from contacting with carbonate ions to form scale through chelation and dispersion. This effect also affects the determination of the end point when EDTA titration is used to determine calcium and magnesium ions, thereby affecting the test results. The higher the concentration ratio, the higher the concentration of scale inhibitors in the water, and the more difficult it is to detect the concentration of calcium and magnesium ions in the actual water. Second, the method of using limiting concentration ratio control has high requirements for water quality fluctuation control. If the water quality of the water source fluctuates seriously, such as heavy rain, drought, and water pollution, it will make it difficult to calculate △A and control it within the range of 0.2, resulting in high and low fluctuations of △A, which makes it impossible to use △A as a system control method. Third, according to the requirements of different regions, the proportion of reclaimed water as the water source needs to be continuously improved, and multiple water sources are used as the make-up water of the circulating water cooling system, which makes it impossible to linearly increase the chloride ion ratio and the calcium ion (alkalinity, calculated as calcium carbonate) ratio, resulting in the failure of the circulating water concentration control system.

[0004] In summary, in terms of the operation and concentration ratio control of the circulating water cooling system, it is impossible to achieve high concentration ratio operation of the circulating water cooling system by analyzing and detecting the concentrations of chloride ions and calcium ions and calculating whether △A is less than 0.2. Only the concentration ratio can be reduced and the safety buffer ratio can be increased, which greatly reduces the energy saving and water saving effect of this operation method. SUMMARY

[0005] To solve the above problems, the application provides a system and method for dynamically controlling the concentration ratio of a circulating water cooling system, which can solve the problem that the limit concentration ratio cannot be calculated in operation due to water quality fluctuation and high scale inhibition concentration affecting key ion detection, reduce the deviation of the limit concentration ratio caused by the error of sampling detection, reduce the fluctuation of the ΔA parameter, and realize more accurate and effective control of the concentration process of the circulating water cooling system.

[0006] The application provides a system for dynamically controlling the concentration ratio of a circulating water cooling system, which comprises a water quality analysis device and a simulated circulating water concentration device independent of the circulating water cooling system. The simulated circulating water concentration device and the circulating water cooling system are connected to the same water supplement pipeline through respective flow meters. The simulated circulating water concentration device comprises a dosing component, a simulated container, a first camera component facing the simulated container, a temperature control component, a stirring component, a liquid level measuring component, and a simulated drain pipe. The first camera component is used to continuously monitor the number and particle size characteristics of suspended solids in the water body of the simulated container to determine the end point of the concentration process or the scale formation point. The simulated drain pipe is used to control the concentration ratio in the simulated container. The circulating water cooling system comprises a circulating water container. The water quality analysis device has three water inlet pipes connected to the water body of the simulated container, the water body of the circulating water container, and the water inlet pipe of the simulated container to simultaneously monitor the water quality characteristics of the water supplement, the simulated circulating water concentration device, and the circulating water cooling system, so that the simulated circulating water concentration device and the circulating water cooling system supplement water bodies with the same water quality characteristics during operation. The simulated circulating water concentration device is used to determine the scale formation point judgment standard through the adjustment of the concentration ratio and the dosing amount, the water quality characteristics analyzed by the water quality analysis device, and the monitoring results of the first camera component, and the scale formation point judgment standard is used to realize accurate scale-free control of the circulating water cooling system.

[0007] Preferably, in the above-mentioned system for dynamically controlling the concentration ratio of a circulating water cooling system, a second camera component is arranged in the water in the circulating water cooling system to monitor the number and particle size characteristics of suspended solids in the water body of the circulating water cooling system to determine the scale formation point of the concentration process.

[0008] Preferably, in the above-mentioned system for dynamically controlling the concentration ratio of a circulating water cooling system, the first camera component is arranged outside the simulated container.

[0009] Preferably, in the above-mentioned system for dynamically controlling the concentration ratio of a circulating water cooling system, the simulated container is a hollow cylindrical transparent glass beaker.

[0010] Preferably, in the system for dynamically controlling the concentration ratio of a circulating water cooling system as described above, the temperature control component comprises a thermometer arranged in the simulated container and an annular stainless steel heating tube arranged at the bottom of the simulated container.

[0011] Preferably, in the system for dynamically controlling the concentration ratio of a circulating water cooling system as described above, the liquid level measuring component is a radar liquid level meter arranged in the simulated container.

[0012] Preferably, in the system for dynamically controlling the concentration ratio of a circulating water cooling system as described above, the stirring component is a stirrer arranged at the middle part of the simulated container.

[0013] Preferably, in the system for dynamically controlling the concentration ratio of a circulating water cooling system as described above, the dosing component is a dosing component for adding scale inhibitor, corrosion inhibitor and bactericide.

[0014] Preferably, in the system for dynamically controlling the concentration ratio of a circulating water cooling system as described above, the flow meter of the simulated circulating water concentration device is an electromagnetic flow meter or an ultrasonic flow meter arranged above the make-up water pipe network.

[0015] The present application provides a method for dynamically controlling the concentration ratio of a circulating water cooling system, which utilizes the system for dynamically controlling the concentration ratio of a circulating water cooling system as described in any one of the above embodiments, and comprises the following steps:

[0016] S1: obtaining the water quality characteristics of the circulating water make-up water;

[0017] S2: adjusting the dosing amount of the dosing component of the simulated circulating water concentration device to a preset value;

[0018] S3: obtaining the first actual suspended solids characteristics and the first real-time concentration ratio of the simulated circulating water concentration device during the concentration process;

[0019] S4: comparing the first actual suspended solids characteristics with the theoretical suspended solids characteristics corresponding to the first real-time concentration ratio, and determining whether the suspended solids D control value range is reached, if the result is no, returning to step S3, and if the result is yes, entering step S5;

[0020] S5: obtaining the water quality characteristics of the simulated circulating water concentration device, multiplying a preset parameter as the upper limit of the water quality control of the circulating water cooling system;

[0021] S6: obtaining the second actual suspended solids characteristics and the second real-time concentration ratio of the circulating water cooling system;

[0022] S7: comparing the second actual suspended matter characteristic with a theoretical suspended matter characteristic corresponding to the second real-time concentration ratio, judging whether the suspended matter D control value range is reached, if the result is no, returning to step S6, if the result is yes, entering step S8;

[0023] S8: controlling the circulating water cooling system to discharge sewage, and controlling the simulated circulating water concentration device to also open the simulated drainage pipe, controlling the concentration ratios of the simulated circulating water concentration device and the circulating water cooling system to be consistent, or adjusting the dosing method, and then entering step S2.

[0024] As can be seen from the above description, the system for dynamically controlling the concentration ratio of the circulating water cooling system provided by the application comprises a water quality analysis device and a simulated circulating water concentration device independent of the circulating water cooling system, the simulated circulating water concentration device and the circulating water cooling system are both connected to the same water supplement pipeline through respective flow meters, the simulated circulating water concentration device comprises a dosing component, a simulated container, a first camera component facing the simulated container, and a temperature control component, a stirring component, a liquid level measuring component and a simulated drainage pipe arranged in the simulated container, the first camera component is used to continuously monitor the number and particle size characteristics of the suspended matter in the water body of the simulated container to determine the end point of the concentration process or the scale formation point, the simulated drainage pipe is used to control the concentration ratio in the simulated container, the circulating water cooling system comprises a circulating water container, and the water quality analysis device has three water inlet pipes connected to the water body of the simulated container, the water body of the circulating water container and the water inlet pipe of the simulated container to simultaneously monitor the water quality characteristics of the water supplement, the simulated circulating water concentration device and the circulating water cooling system, so that the simulated circulating water concentration device and the circulating water cooling system supplement the water body with the same water quality characteristics during operation, the simulated circulating water concentration device is used to determine the scale formation point judgment standard through the adjustment of the concentration ratio and the dosing amount, the water quality characteristics analyzed by the water quality analysis device and the monitoring result of the first camera component, and the scale formation point judgment standard is used to realize the precise control of the circulating water cooling system without scale formation, so that the problem that the limit concentration ratio cannot be calculated due to the water quality fluctuation and the influence of the high scale inhibition concentration on the detection of key ions can be solved, the deviation of the limit concentration ratio caused by the error of sampling detection can be reduced, the fluctuation of the ΔA parameter can be reduced, and the concentration process of the circulating water cooling system can be more accurately and effectively controlled. The method for dynamically controlling the concentration ratio of the circulating water cooling system provided by the application has the same advantages as the system. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim at the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without any creative effort on the basis of the provided drawings.

[0026] Figure 1 A schematic diagram of an embodiment of a system for dynamically controlling a concentration ratio of a circulating water cooling system provided by the present application is shown.

[0027] Figure 2 A schematic diagram of an embodiment of a method for dynamically controlling a concentration ratio of a circulating water cooling system provided by the present application is shown. DETAILED DESCRIPTION

[0028] The core of the present application is to provide a system and a method for dynamically controlling a concentration ratio of a circulating water cooling system, which can solve the problem that the limit concentration ratio cannot be calculated in operation due to the influence of water quality fluctuation and high scale inhibition concentration on the detection of key ions, reduce the deviation of the limit concentration ratio caused by the error of sampling detection, reduce the fluctuation of the ΔA parameter, and realize more accurate and effective control of the concentration process of the circulating water cooling system.

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0030] An embodiment of a system for dynamically controlling a concentration ratio of a circulating water cooling system provided by the present application is shown. Figure 1 as shown, Figure 1A schematic diagram of an embodiment of a system for dynamically controlling the concentration ratio of a circulating water cooling system, the system can include a water quality analysis device 3 and a simulated circulating water concentration device 1 independent of the circulating water cooling system 2, the simulated circulating water concentration device 1 and the circulating water cooling system 2 are connected to the same water replenishment pipeline through respective flow meters 19 and 21, so that the water replenishment pipeline can simultaneously replenish the simulated circulating water concentration device 1 and the circulating water cooling system 2 with the same water quality, and the respective flow meters 19 and 21 can record the actual water replenishment amount into the simulated circulating water concentration device 1 and the circulating water cooling system 2, the simulated circulating water concentration device 1 includes a dosing component 16, a simulated container 11, a first camera component 17 facing the simulated container 11, a temperature control component, a stirring component 15, a liquid level measuring component 14, and a simulated drain pipe 18 arranged in the simulated container 11, which can be preferably arranged above the drain pipe network for controlling the concentration ratio in the simulated container 11, and the above components can control the parameters of the water in the simulated container 11 to be the same as the parameters of the water in the circulating water cooling system 2, thereby ensuring more accurate simulation, the first camera component 17 is used to continuously monitor the amount of suspended solids and particle size characteristics in the water body of the simulated container 11 to determine the end point of concentration or the scaling point, the simulated drain pipe 18 is used to control the concentration ratio in the simulated container 11, so that the end point of concentration can be known, thereby providing accurate basis for the circulating water cooling system, the circulating water cooling system 2 includes a circulating water container 26, and the water quality analysis device 3 has three water inlet pipes connected to the water body of the simulated container 11, the water body of the circulating water container 26, and the water inlet pipe of the simulated container 11 respectively to simultaneously monitor the water quality characteristics of the water replenishment, the simulated circulating water concentration device 1 and the circulating water cooling system 2, which can include parameters such as chloride ions, calcium ions, alkalinity, pH value, etc., continuously monitor the water quality characteristics in the simulated circulating water concentration device 1 to control the water quality characteristics and concentration ratio of the circulating water cooling system 2, so that the simulated circulating water concentration device 1 and the circulating water cooling system 2 can replenish water bodies with the same water quality characteristics during operation, thereby maximizing the avoidance of parameter differences between the two systems, so that the simulation is more accurate, the simulated circulating water concentration device 1 is used to determine the scaling point judgment standard through the adjustment of the concentration ratio and the amount of dosing, the water quality characteristics analyzed by the water quality analysis device 3, and the monitoring results of the first camera component 17, and the scaling point judgment standard is used to realize the accurate control of the circulating water cooling system 2 without scaling, that is, the simulated circulating water concentration device 1 can determine to what extent the concentration will scale under the condition of the parameters, and accordingly the concentration ratio of the circulating water cooling system 2 can be controlled to prevent scaling.

[0031] The circulating water cooling system 2 is an open indirect circulating heat exchange cooling system. After heat exchange in the condenser, the circulating water is in contact with the outside air through the cooling tower to diffuse the heat to the atmosphere, thereby realizing water cooling. During the cooling process, the diffused heat carries away the water, and the water body is gradually concentrated. The flow meter 21 is arranged on the water supply pipe network to realize water supply of the circulating water cooling system 2, and preferably an electromagnetic or ultrasonic flow meter is used. The dosing device 22 is used to add various reagents to the circulating water cooling system 2. The circulating water tower blowdown water pipe flow meter 24 is arranged on the blowdown pipe to count the blowdown water volume. The circulating water tower blowdown valve 25 is arranged on the blowdown pipe to control the operation multiple of the circulating water cooling system 2.

[0032] It should be noted that the above system can be automatically controlled to automatically complete the simulation concentration test and obtain the simulation test results. According to the test results, the operation condition of the circulating water cooling system is adjusted to control the normal operation of the circulating water cooling system, thereby solving the problem that the limit concentration multiple cannot be calculated due to the influence of water quality fluctuation and high scale resistance concentration on key ion detection during operation.

[0033] As can be seen from the above description, in the embodiment of the system for dynamically controlling the concentration multiple of the circulating water cooling system provided by the application, the water quality analysis device and the simulation circulating water concentration device independent of the circulating water cooling system are included. The simulation circulating water concentration device and the circulating water cooling system are connected to the same water supply pipe through respective flow meters. The simulation circulating water concentration device includes a dosing component, a simulation container, a first camera component facing the simulation container, a temperature control component arranged in the simulation container, a stirring component, a liquid level measuring component, and a simulation blowdown pipe. The first camera component is used to continuously monitor the number and particle size characteristics of the suspended solids in the water body of the simulation container to determine the concentration process end point or the scale formation point. The simulation blowdown pipe is used to control the concentration multiple in the simulation container. The circulating water cooling system includes a circulating water container. The water quality analysis device has three water inlet pipes connected to the water body of the simulation container, the water body of the circulating water container, and the water inlet pipe of the simulation container to simultaneously monitor the water quality characteristics of the water supply, the simulation circulating water concentration device, and the circulating water cooling system. The simulation circulating water concentration device and the circulating water cooling system are supplied with water with the same water quality characteristics during operation. The simulation circulating water concentration device is used to determine the scale formation point judgment standard through adjustment of the concentration multiple and the dosing amount, the water quality characteristics analyzed by the water quality analysis device, and the monitoring results of the first camera component. The scale formation point judgment standard is used to realize accurate scale-free control of the circulating water cooling system. Therefore, the problem that the limit concentration multiple cannot be calculated due to water quality fluctuation and high scale resistance concentration affecting key ion detection during operation can be solved. The deviation of the limit concentration multiple caused by the error of sampling detection is reduced, the fluctuation of the ΔA parameter is reduced, and more accurate and effective control of the concentration process of the circulating water cooling system is realized.

[0034] In one embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, a second camera 23 is arranged in the circulating water cooling system 2 to monitor the amount and particle size characteristics of the suspended matter in the water in the circulating water cooling system 2 to determine the scaling point in the concentration process. The second camera 23 can be preferably an underwater high-definition camera arranged in the front tank of the circulating water cooling system.

[0035] In another embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, the first camera 17 is arranged outside the simulation container 11 to continuously monitor the amount and particle size characteristics of the suspended matter in the water to determine the end point or scaling point in the concentration process.

[0036] Furthermore, the simulation container 11 can be preferably a hollow cylindrical transparent glass beaker. Such transparent material facilitates the observation of the scaling condition of the water inside the simulation container by the camera from the outside. The volume of the simulation container is preferably not less than 50L to better simulate the scaling phenomenon in the water.

[0037] In yet another embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, the temperature control component can preferably include a thermometer 13 arranged in the simulation container 11 and a ring-shaped stainless steel heating pipe 12 arranged at the bottom of the simulation container 11. The heating pipe can be made of 316L stainless steel to achieve uniform heating. The thermometer 13 can monitor the temperature of the water. In addition, the liquid level measuring component 14 can be preferably a radar liquid level meter arranged in the simulation container 11 to more accurately measure the liquid level. Of course, other types of temperature control components and liquid level measuring components can be selected according to actual needs, which are not limited herein.

[0038] In one preferred embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, the stirring component 15 can be preferably a stirrer arranged at the middle part of the simulation container 11 to control the water body not to be locally overheated by the stirring action.

[0039] In another preferred embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, the dosing component 16 can be preferably a dosing component for adding scale inhibitors, corrosion inhibitors and bactericides or a component with the same function to add various chemicals into the simulation container. The chemicals added into the simulation container are the same as those added into the circulating water cooling system in terms of type and amount to ensure the accuracy of the simulation.

[0040] In another preferred embodiment of the system for dynamically controlling the concentration ratio of the circulating water cooling system, the flow meter 19 of the simulated circulating water concentration device 1 can be preferably an electromagnetic flow meter or an ultrasonic flow meter arranged above the make-up water pipe network, so that the precise make-up water of the simulated concentration beaker 11 can be realized. Of course, other types of flow meters can also be selected according to actual needs, which are not limited here.

[0041] The present application provides an embodiment of a method for dynamically controlling the concentration ratio of the circulating water cooling system, as shown in Figure 2 Figure 2 The present application provides an embodiment of a method for dynamically controlling the concentration ratio of the circulating water cooling system, as shown in

[0042] S1: Obtain the water quality characteristics of the circulating water make-up water;

[0043] S2: Adjust the dosing amount of the dosing component of the simulated circulating water concentration device to the preset value;

[0044] S3: During the concentration process, obtain the first actual suspended solids characteristics and the first real-time concentration ratio in the simulated circulating water concentration device;

[0045] S4: Compare the first actual suspended solids characteristics with the theoretical suspended solids characteristics corresponding to the first real-time concentration ratio, and determine whether it is within the control value range of the suspended solids D. If the result is no, return to step S3. If the result is yes, proceed to step S5;

[0046] S5: Obtain the water quality characteristics of the simulated circulating water concentration device, multiply by a preset parameter as the upper limit of the water quality control of the circulating water cooling system. The preset parameter can be preferably 0.9. This preset parameter is preferably less than 1 to produce a buffer and better avoid scaling. Of course, it can also be adjusted according to actual needs, which are not limited here;

[0047] S6: Obtain the second actual suspended solids characteristics and the second real-time concentration ratio in the circulating water cooling system;

[0048] S7: Compare the second actual suspended solids characteristics with the theoretical suspended solids characteristics corresponding to the second real-time concentration ratio, and determine whether it is within the control value range of the suspended solids D. If the result is no, return to step S6. If the result is yes, proceed to step S8;

[0049] S8: Control the blowdown of the circulating water cooling system, and control the simulated blowdown pipe of the simulated circulating water concentration device to be opened. Control the concentration ratio of the simulated circulating water concentration device and the circulating water cooling system to be consistent, or adjust the dosing method, and then proceed to step S2. For details, please refer to Figure 1 ​The blowdown pipe 25 is used for blowdown, and the blowdown pipe flow meter 24 is used for controlling the blowdown amount.

[0050] Specifically, the water quality analysis device 3 analyzes the raw water quality characteristics, adjusts the simulated dosing device 16 to add the type and amount of medicament according to the water quality, simulates the operation of the circulating water concentration device 1 to perform simulated concentration, the stainless steel heating pipe 12 starts heating, the thermometer 13 controls the concentration temperature at 45-50℃, the simulated concentration beaker water supply flow meter 19 records the water supply flow, and the concentration ratio is calculated by volume, not the concentration of chloride ions. The detection accuracy of the concentration ratio is provided, and the concentration ratio N in the concentration stage (without drainage) is as follows:

[0051]

[0052] Wherein: Q1 is the volume of water in the starting simulated concentration beaker, unit is m 3 ; ∑Q 补 is the cumulative water volume of the water supply per hour, unit is m 3 ;

[0053] The concentration ratio in the stable operation stage (with drainage) is:

[0054]

[0055] Wherein: Q1 is the volume of water in the starting simulated concentration beaker, unit is m 3 ; ∑Q 补 is the cumulative water volume of the water supply per hour, unit is m 3 ; Q 排 is the drainage volume outside n-1 hours, unit is m 3 ; N n is the concentration ratio at the nth hour; N (n-1) is the concentration ratio at the n-1 hour.

[0056] With the gradual increase of the concentration ratio, the number of suspended solids in the water body gradually increases, and the process of the increase of the number of suspended solids is recorded by the first camera component 17. When the ratio of the actual number of suspended solids to the theoretical increased number of suspended solids is greater than 1.2, it is the end point of the concentration process or the scaling point. The calculation formula is as follows:

[0057]

[0058] S n is the actual number of suspended solids, unit is piece, S1 is the number of suspended solids photographed at the start of concentration, unit is piece, N is the concentration ratio; D is the ratio of the actual number of suspended solids to the theoretical increased number of suspended solids;

[0059] At this time, the water quality analysis device 3 records the end-point water quality characteristics of the simulated circulating water concentration device 1, multiplies the end-point water quality characteristics by a preset parameter, such as 0.9, as the water quality control standard of the circulating water cooling system 2. The water quality characteristics in the circulating water cooling system 2 are controlled to be higher than the water quality characteristics in the simulated circulating water concentration device 1, and the suspended solids characteristics in the circulating water cooling system 2 are monitored by the second camera component 23 as the fouling point judgment standard, and the judgment method is consistent with formula (3).

[0060] When the suspended solids D > 1.2 in the circulating water cooling system 2 due to some factors, part of the circulating water is discharged, or the dosing method is adjusted.

[0061] When the circulating water cooling system 2 discharges part of the circulating water, the concentration ratio calculation formula (2) of the circulating water cooling system 2 is executed, and the calculation result is fed back to the simulated circulating water concentration device 1. The simulated circulating water concentration device 1 also opens the simulated concentration beaker drain pipe 18, and controls the concentration ratio to be consistent with the circulating water cooling system 2.

[0062] When the circulating water cooling system 2 adjusts the dosing method, the concentration process is preferentially carried out in the simulated circulating water concentration device 1, and the concentration control process is consistent with the above control process. The simulated circulating water concentration device 1 performs concentration to obtain the end-point water quality characteristics, and multiplies the end-point water quality characteristics by a preset parameter, such as 0.9, as the water quality control upper limit of the circulating water cooling system 2.

[0063] In summary, the above method uses the first camera component 17 to monitor the whole process of the change of the suspended solids, obtains the end-point water quality characteristics of the simulated concentration process of the simulated circulating water concentration device 1, considers the operation margin, and uses the end-point water quality characteristics as the water quality control upper limit of the circulating water cooling system 2. At the same time, the second camera component 23 is installed to continuously monitor the change of the suspended solids in the circulating water cooling system 2, so as to avoid the sudden deterioration of the water quality in unexpected situations and timely adjust the operation. In addition, the monitoring of the suspended solids characteristics can directly and accurately observe the real-time state of the circulating water cooling system 2, avoid a large amount of manual sampling and analysis work, and realize intelligent control. It can be seen that the above method of dynamically controlling the concentration ratio of the circulating water cooling system is based on tracking the suspended solids characteristics in the water body, can accurately capture the concentration end-point or the fouling point, avoids a large amount of manual sampling and analysis work in the operation of the circulating water cooling system, solves the problem of large analysis error of key ions caused by excessive content of scale inhibitors, and improves the automation level and intelligent control ability of the circulating water cooling system.

[0064] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A system for dynamically controlling the concentration ratio of a circulating water cooling system, characterized in that, The system includes a water quality analysis device and a simulated circulating water concentration device independent of the circulating water cooling system. Both the simulated circulating water concentration device and the circulating water cooling system are connected to the same water supply line via their respective flow meters. The simulated circulating water concentration device includes a dosing component, a simulated container, a first camera component facing the simulated container, and a temperature control component, a stirring component, a liquid level measuring component, and a simulated drain pipe located within the simulated container. The first camera component continuously monitors the number and particle size characteristics of suspended solids in the water within the simulated container to determine the end point of the concentration process or the scaling point. The simulated drain pipe controls the concentration ratio within the simulated container. The circulating water cooling system includes circulating water... The container, and the water quality analysis device has three inlet pipes, which are respectively connected to the water in the simulated container, the water in the circulating water container, and the inlet pipe of the simulated container to simultaneously monitor the water replenishment, the water quality characteristics of the simulated circulating water concentration device and the circulating water cooling system, so that the simulated circulating water concentration device and the circulating water cooling system are replenished with water with the same water quality characteristics during operation. The simulated circulating water concentration device is used to determine the scaling point judgment criteria by adjusting the concentration ratio and the dosage, the water quality characteristics analyzed by the water quality analysis device, and the monitoring results of the first camera component, and to achieve precise control of the non-scaling of the circulating water cooling system by using the scaling point judgment criteria.

2. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, A second camera is also installed in the water within the circulating water cooling system to monitor the quantity and particle size characteristics of suspended solids in the water to determine scaling points during the concentration process.

3. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The first camera component is located outside the simulated container.

4. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The simulated container is a hollow cylindrical transparent glass beaker.

5. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The temperature control component includes a thermometer disposed inside the simulation container and an annular stainless steel heating tube disposed at the bottom of the simulation container.

6. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The liquid level measuring component is a radar-type liquid level gauge installed inside the simulated container.

7. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The stirring component is a stirrer located in the middle part of the simulated container.

8. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The dosing component is used to add scale inhibitors, corrosion inhibitors, and bactericides.

9. The system for dynamically controlling the concentration ratio of a circulating water cooling system according to claim 1, characterized in that, The flow meter of the simulated circulating water concentration device is an electromagnetic flow meter or an ultrasonic flow meter arranged on the water supply network.

10. A method for dynamically controlling the concentration ratio of a circulating water cooling system, characterized in that, A system for dynamically controlling the concentration ratio of a circulating water cooling system as described in any one of claims 1-9, comprising: S1: Obtain the water quality characteristics of the circulating water makeup water; S2: Adjust the dosage of the dosing component of the simulated circulating water concentration device to the preset value; S3: During the concentration process, obtain the first actual suspended solids characteristics and the first real-time concentration ratio in the simulated circulating water concentration device; S4: Compare the first actual suspended solids characteristics with the theoretical suspended solids characteristics corresponding to the first real-time concentration ratio to determine whether the suspended solids D is within the control value range. If the result is no, return to step S3; if the result is yes, proceed to step S5. S5: Obtain the water quality characteristics of the simulated circulating water concentration device, and multiply them by a preset parameter to obtain the upper limit of water quality control for the circulating water cooling system. S6: Obtain the second actual suspended solids characteristics and the second real-time concentration ratio in the circulating water cooling system; S7: Compare the second actual suspended solids characteristics with the theoretical suspended solids characteristics corresponding to the second real-time concentration ratio to determine whether the suspended solids D is within the control value range. If the result is no, return to step S6; if the result is yes, proceed to step S8. S8: Control the sewage discharge of the circulating water cooling system, and control the simulated circulating water concentration device to open the simulated drain pipe as well. Control the concentration ratio of the simulated circulating water concentration device and the circulating water cooling system to be consistent, or adjust the dosing method, then proceed to step S2.

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