Dynamic simulation test device and method for resin high tower separation

Abstract

The invention discloses a dynamic simulation test device and method for resin high tower separation, and relates to the technical field of water treatment.The dynamic simulation test device comprises a desalting water tank, a booster pump, a remote flowmeter, a control cabinet, a start-stop switch, a separation tower, a resin storage tank, a valve, a camera and a resin interface intelligent recognition and control device. According to the dynamic simulation test method for resin high tower separation, test research related to resin separation or chromatic aberration is carried out according to the separation conditions of the high tower, the resin separation process is monitored by utilizing a high-definition camera technology, the resin separation process is automatically judged by utilizing a computer image recognition technology, flow data is recorded and converted into flow velocity, and the dynamic simulation test method is used for testing the resin separation process. And the identified resin layering effect, color moment and other data are matched, so that the separation of different proportions or types of mixed resin in the separation tower is realized, and a test result with excellent separation is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a dynamic simulation test device and method for resin high tower separation. Background Art

[0002] The resin used in the condensate polishing system determines the quality of the treated condensate to a great extent. If the separation effect of the cation and anion resins is poor, a large amount of cation resins will be mixed with the anion resin, and a large amount of anion resins will be mixed with the cation resin. When further acid and alkali regeneration is carried out, the cation and anion resins will be permanently contaminated and damaged.

[0003] In order to study and improve the operation effect and change law of the resin in the high-speed mixed bed of condensate polishing, improve the water vapor quality of the unit, and avoid the corrosion, salt accumulation and pipe burst of various thermal equipment, it is necessary to carry out relevant experimental research on resin separation.

[0004] The resin regeneration workshop of the power plant has been in production all the time, and the equipment is made of stainless steel. It is impossible to check the status of the internal resin operation and provide experimental conditions for studying resin separation. Therefore, it is necessary to research and invent a test device that simulates the high-tower separation of resin. It can accurately simulate the dynamic separation of the high tower, which will effectively solve the problem of difficulty in conducting experiments in power plants, and conduct experiments on resins of different types and proportions. By recording the flow rate and flow velocity of resin separation and establishing a connection with the sedimentation of the resin, and judging the resin separation effect through online image recognition, it is conducive to selecting resins with excellent separation effects, which is of great significance for providing a basis and solution to solve the problem of difficult separation of various resins. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] Therefore, the technical problem solved by the present invention is: to solve the problem that the separation effect of cation and anion resins is poor and the stratification is unstable in the fine treatment regeneration of existing power plants and the cause cannot be studied and analyzed, to effectively meet the needs of cation and anion resin separation tests of different types and proportions, to screen out various types and proportions of resins with excellent separation effects, and to improve the resin separation accuracy and efficiency.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a dynamic simulation test device for resin high tower separation, comprising:

[0008] Desalted water tank, booster pump, remote flow meter, control cabinet and start / stop switch, separation tower, resin storage tank, valve, camera, resin interface intelligent identification and control device;

[0009] The water outlet at the bottom of the desalted water tank is connected to the upper water inlet and the bottom water inlet of the separation tower respectively through a booster pump and a remote flow meter;

[0010] The booster pump is connected to the control cabinet and the start-stop switch. By starting the pump and opening different valves, the desalted water can be transported into the separation tower through the upper water inlet or the lower water inlet;

[0011] The remote flow meter is connected to the resin interface intelligent identification and control device;

[0012] The top cover of the separation tower can be opened and closed, and resin can be added;

[0013] The valve controls the desalted water delivery flow rate by its opening size, and the valve includes valves #1 to #14;

[0014] The camera is placed on the side of the peephole on the separation tower. The camera is connected to the resin interface intelligent identification and control device, and is used to monitor the cation-anion resin separation interface after resin backwashing and stratification in the separation tower, identify and record the color moment value of the cation-anion interface, and obtain data from the remote flow meter.

[0015] As a preferred embodiment of the dynamic simulation test device for resin high tower separation of the present invention, when resin and deionized water are present in the separation tower, water is introduced from the bottom through a booster pump to start backwashing and stratifying the mixed cation and anion resins, and the backwashing and stratification is controlled from large to small by controlling the opening of a valve;

[0016] The bottom grease outlet of the separation tower is connected to the upper grease inlet and the bottom grease outlet of the resin storage tank through valves and pipelines. By starting the booster pump, water is transported from the upper part and the resin is pressed from the lower part into the resin storage tank.

[0017] When the separation tower is full of water, water is pumped from the upper part of the separation tower through a booster pump to form a negative pressure state, thereby driving the resin from the bottom of the resin storage barrel into the bottom of the separation tower.

[0018] As a preferred solution of the dynamic simulation test device for resin high tower separation described in the present invention, wherein: the resin interface intelligent recognition and control device is composed of an interface image acquisition unit, an interface intelligent recognition unit and an analysis control unit;

[0019] The resin separation process is monitored by high-definition camera technology, the resin separation process is automatically judged, and the mixed resin is separated in the separation tower by sending signals to the program control system;

[0020] The analysis control unit obtains the data Q of the remote flow meter and calculates the backwash water flow rate, which is expressed as:

[0021] u=Q / S

[0022] Wherein, S represents the cross-sectional area of ​​the separation tower.

[0023] As a preferred solution of the dynamic simulation test device for resin high-tower separation described in the present invention, the resin separation effect is judged by online image recognition, and whether the resin meets the separation requirements is evaluated in combination with the separation identification color moment M of each set of test mixed fats and whether the resin separation situation N is identified, the optimal separation flow rate and flow velocity of the set of mixed fats are determined, and the resin with the best separation effect is selected.

[0024] Another object of the present invention is to provide a dynamic simulation test method for resin high-tower separation, simulate the cation-anion resin separation in the laboratory, meet the conditions for conducting relevant tests on cation-anion mixed resins of different types and proportions, and simulate the resin separation process during the operation of a high-speed mixed bed in a power plant.

[0025] In order to solve the above technical problems, the present invention provides the following technical solutions: a dynamic simulation test method for resin high tower separation, comprising:

[0026] Connect the electric control cabinet of the high-tower separation dynamic simulation experimental device to the power supply, check whether the pipeline valves are open and closed and the electric control cabinet are in normal state; connect the host and camera of the resin interface intelligent identification and control device to the computer, check whether the computer software equipment and network port are in normal state; the initial state of the high-tower separation dynamic simulation test device; conduct a simulation test through the separation tower simulation test device.

[0027] As a preferred scheme of the dynamic simulation test method for resin high-tower separation described in the present invention, wherein: the initial state includes all valves being closed by default, and the flow rate being controlled by controlling the valve opening; performing intelligent identification of the resin interface and power-on testing of the control device, remote access testing and camera position fine-tuning.

[0028] As a preferred embodiment of the dynamic simulation test method for high-tower separation of resin of the present invention, the simulation test performed by the separation tower simulation test device includes adding resin through the top inlet of the separation tower;

[0029] Open valves #1, #2, and #3, start the water pump switch, open exhaust valve #14, and let water in from the upper part of the separation tower. When valve #14 starts to discharge water, close it in time, and the separation tower is filled with water;

[0030] Open valves #1, #2, #3, #4, and #5, start the water pump switch, and unload the resin from the separation tower;

[0031] Open valves #1, #2, and #7, and start the water pump switch; water enters the lower part of the separation tower to perform resin backwashing, and the flow rate is controlled from large to small by controlling the valve opening, and the flow data is transmitted to the resin interface intelligent identification and control device to achieve the resin support and stratification functions;

[0032] After backwashing and separation, the resin interface intelligent identification and control device can be used to identify the color moment between the positive and negative resins and determine the interface between the positive and negative resins.

[0033] The separation effect of the cation-anion mixed resin of the test ratio is judged by the flow rate, flow velocity and color moment data;

[0034] Open valves #1, #2, #3, and #11, start the water pump switch, and discharge water from the lower part of the separation tower;

[0035] Open valves #2, #7, and #10 to drain the separation tower;

[0036] Open valves #4, #8, #9, and #10, start the water pump switch, and draw resin from the bottom of the resin barrel under negative pressure. The resin can be sucked from the bottom of the resin barrel, and water can flow out from the top of the separation tower. After being sucked by the pump, it is discharged from valve No. 10.

[0037] As a preferred embodiment of the dynamic simulation test method for resin high tower separation of the present invention, the resin backwashing includes conducting a test mixing test according to different cation and anion ratios to judge the effect of backwash separation, so that the backwash inlet flow rate is from large to small, that is, the flow rate is from large to small, firstly all the resin is flushed into the funnel section at the top of the separation tower, and by gradually reducing the rising flow rate of the backwash water, particles with different settling speeds fall in turn, so as to achieve the purpose of separating the cation and anion resins;

[0038] Record the flow data and feed it back to the intelligent identification and control device of the resin interface to calculate the water flow rate and adjust the valve. At the same time, record the image and color moment value of the resin separation corresponding to each flow rate or flow rate.

[0039] A computer device comprises a memory and a processor, wherein the memory stores a computer program and the processor implements the steps of the dynamic simulation test method for resin high tower separation when executing the computer program.

[0040] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the dynamic simulation test method for resin high-tower separation as described above.

[0041] Beneficial effects of the present invention: The dynamic simulation test method for resin tower separation provided by the present invention can meet the requirements that the upper water inlet and the lower water inlet of the tower can normally inlet water, the resin inlet at the lower part of the tower can inlet resin, the resin can be sucked from the resin barrel into the tower by negative pressure, the resin can be backwashed and separated, and the resin interface intelligent identification device can be used to perform layered identification, meeting the requirements of the simulation experiment. According to the separation conditions of the tower, experimental research related to resin separation or color difference can be carried out, the process of resin separation can be monitored by high-definition camera technology, the process of resin separation can be automatically judged by computer image recognition technology, the flow data can be recorded and converted into flow rate, the resin layering effect and color moment and other data can be matched and identified, and the mixed resin can be fully automatically separated in the separation tower. By intelligently collecting the data of the fine processing operation process and using algorithms for calculation, the resin separation process can be intelligently controlled and finely managed. It will effectively solve the problem of difficulty in conducting experiments in power plants, and it is of great significance to provide a basis and solution for solving various difficult separation problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0043] Figure 1 An overall structural diagram of a dynamic simulation test device for resin high-tower separation provided in one embodiment of the present invention.

[0044] Figure 2 A valve structure diagram of a dynamic simulation test device for resin high-tower separation provided in accordance with an embodiment of the present invention.

[0045] Figure 3 An identification flow chart based on a neural network model for a dynamic simulation test method of resin high tower separation provided in one embodiment of the present invention.

[0046] Figure 4 An overall flow chart of a dynamic simulation test method for resin high tower separation provided by one embodiment of the present invention.

[0047] Figure 1 Among them, 100 is a desalted water tank, 200 is a booster pump, 300 is a remote flow meter, 400 is a control cabinet and a start-stop switch, 500 is a separation tower, 600 is a resin storage tank, 700 is a valve (numbered #1-#14), 800 is a camera, and 900 is a resin interface intelligent identification and control device. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] Example 1, reference Figure 1-Figure 2 , as one embodiment of the present invention, provides a dynamic simulation test device for resin high tower separation, comprising:

[0051] The high tower separation dynamic simulation experimental device of the present invention comprises a desalted water tank 100, a booster pump 200, a remote flow meter 300, a control cabinet and a start-stop switch 400, a separation tower 500, a resin storage tank 600, valves 700 (numbered #1-#14), a camera 800, and a resin interface intelligent recognition and control device 900;

[0052] The bottom water outlet of the desalted water tank 100 is connected to the upper water inlet and the bottom water inlet of the separation tower 500 through the booster pump 200 and the remote flow meter 300 respectively; wherein the remote flow meter signal line is connected to the resin interface intelligent identification and control device 900.

[0053] like Figure 2 As shown, valves 700 (numbered #1-#14) can control the flow rate of demineralized water by the size of their openings.

[0054] For each set of resins of different brands and proportions, the backwash flow rate needs to be determined based on the density and particle size of the resin itself.

[0055] The opening adjustment of valve 1# can control the water flow rate out of the water tank, and the opening adjustment of valve 2# can control the flow rate entering the separation tower.

[0056] The booster pump 200 is connected to the control cabinet and the start-stop switch 400. By starting the pump and opening different valves, the desalted water can be transported into the separation tower through the upper water inlet or the lower water inlet.

[0057] The top cover of the separation tower 500 can be opened and closed, and resin can be added. When there are resin and deionized water in the separation tower, water can be introduced from the bottom through a booster pump to start backwashing and stratification of mixed cation and anion resins. Backwashing and stratification need to control the opening of valve 700 and control the flow from large to small to achieve a "press up and drag down" resin backwash state, which is conducive to resin stratification.

[0058] The bottom grease outlet of the separation tower 500 is connected to the upper grease inlet and the bottom grease outlet of the resin storage tank 600 through valves and pipes. By starting the booster pump, water is transported from the upper part and the resin is pressed from the lower part into the resin storage barrel. In addition, when the separation tower is full of water, water is pumped from the upper part of the separation tower by the booster pump to form a negative pressure state, thereby driving the resin from the bottom grease outlet of the resin storage barrel into the bottom of the separation tower.

[0059] The camera 800 is placed on the side of the peephole on the separation tower 500. The camera 800 is connected to the resin interface intelligent identification and control device 900, and is used to monitor the positive and negative resin separation interface after the resin backwashing and stratification in the separation tower, and identify and record the color moment value of the positive and negative interface, and obtain the data of the flow meter. The resin separation process is monitored by high-definition camera technology, the resin separation process is automatically judged, and the mixed resin is separated in the separation tower by sending a signal to the program control system.

[0060] The separation tower is made of transparent acrylic material, through which the resin can be observed during the entire separation process of being washed by water. However, due to pressure requirements, the separation tower in the power plant is made of stainless steel with an inner rubber lining, and has only a peep window, through which only the partial separation interface can be observed.

[0061] The simulation device is small in size and requires a small amount of test resin, so it can simulate various resin separation tests. However, the separation tower on site is large, about 10m high, and needs to accommodate 6-10m3 of resin at a time. The peep window is usually in the middle, and such a large amount must be added to see the interface, which is not conducive to conducting experiments. This simulation test device effectively avoids this problem.

[0062] The process of judging resin separation includes the different colors of the positive and negative resins. The appearance of an obvious horizontal dividing line indicates a good separation effect; the absence of a dividing interface indicates no separation; and a curved dividing line indicates that the recognition was unsuccessful.

[0063] The color difference between the upper and lower colors of the dividing line is the color moment value calculated by instant image recognition.

[0064] The camera recognizes the resin image of the separation tower peephole, and compares the real-time color moment value of the cation-anion resin boundary layer image. The color moment setting value in the control system is 30. When the recognition value is greater than 30, it is judged that the boundary is recognized. If it is less than 30, it is judged as not recognized.

[0065] Through Figure 1The composition shown, water in and out, and resin in and out for separation.

[0066] A set of mixed resin 6~10m 3 , the dosage is large, and the price ranges from 100,000 to 300,000 yuan; while through the test device of the present invention, only a few dozen liters are needed at a time, and it is convenient to mix various resins for testing.

[0067] The image recognition control system of the traditional method does not have access to the flow signal. The present invention accesses the flow signal, calculates the flow rate in the control device and stores the flow rate and flow rate data, and combines the color moment of the image recognition control device to comprehensively judge the resin separation effect.

[0068] like Figure 2 As shown, in order to quickly and accurately identify and judge the stratification effect of cation and anion resins in the resin tower separation process, the present invention designs a deep neural network model to identify, finely segment and locate the separation interface. The neural network model YOLO-Unet consists of two parts, YOLO and U-Net networks. Among them, YOLO is used to quickly detect the approximate area of ​​the resin boundary line, while U-Net performs pixel-level precise segmentation of the area to obtain the specific position of the boundary line. Through this division of labor, the system can take into account both the real-time and accuracy of recognition.

[0069] The model is processed in three steps: data collection, model training and practical application:

[0070] (1) Image data acquisition

[0071] Camera equipment: Install a high-definition camera in the resin separation tower to capture images of the resin boundary in real time. It is recommended to collect images under different experimental conditions to ensure the generalization ability of the model.

[0072] Image annotation: Annotate the captured images. The annotation information includes the exact location of the dividing line (segmentation annotation) and the area of ​​the dividing line (bounding box annotation), which is used as the basic data for training YOLO and U-Net.

[0073] Physical data acquisition: In each set of experiments, experimental parameters such as flow velocity u, flow rate Q, cross-sectional area S, etc. are recorded as auxiliary data input.

[0074] (2) Data enhancement

[0075] Since the performance of the resin boundary may vary in different environments, data augmentation can be used to increase the diversity of the data, such as generating more training samples by rotation, flipping, scaling, and brightness adjustment.

[0076] (3) Neural network training

[0077] The goal of YOLO is to quickly detect the approximate location of the resin boundary. Training YOLO requires the use of an image dataset with boundary annotations and optimizing the target detection loss function. The input of the network is a preprocessed resin separation tower image, and the output is a predicted frame of the boundary, which predicts the area of ​​the boundary. In the present invention, the CIOU loss function is used to measure the difference between the predicted frame and the true frame. CIoU is a loss function based on IoU, which not only considers the overlapping area between the predicted frame and the true frame, but also considers the difference in the center point distance and aspect ratio between them:

[0078]

[0079] Among them, ρ(b,b * ) is the distance between the center points of the predicted box and the real box, c is the diagonal length of the smallest enclosing box that can enclose the two boxes, α is the weight factor, and v is the difference in height ratio.

[0080] For classification loss, binary cross entropy loss is used for training to identify whether the target pixel is a boundary:

[0081] L B =-[ylog(p)+(1-y)log(1-p)]

[0082] Where y is the true label (1 for the boundary, 0 for the background). p represents the predicted probability, which means the probability that a candidate box contains the boundary. 1-p represents the probability of being the background. The third part of the loss is the confidence loss, which measures whether the predicted box contains the target object and takes the background area into consideration. In the present invention, the binary cross entropy loss is used for learning:

[0083]

[0084] Among them, y is the true label, if the predicted box contains the target, then y = 1; if the predicted box does not contain the target, then y = 0. is the confidence of the prediction, that is, the probability of whether there is a target in the prediction box. The final training is completed by combining these three loss functions.

[0085] The task of U-Net is to perform accurate pixel-level segmentation based on the area provided by YOLO and identify the specific shape of the resin boundary. The accuracy of U-Net comes from its encoder-decoder structure and skip connections. This architecture enables U-Net to retain high-resolution spatial information during image dimensionality reduction, while combining deep semantic information for fine-grained segmentation. Finally, a binary image of the same size as the input image is output, representing the boundary and background. The value of each pixel is 0 (background) or 1 (dividing line). Opencv is then used to extract the outline of the dividing line, and then the separation situation N and the color difference moment M are calculated. The color difference of the resin on both sides of the dividing line is calculated in combination with the color difference moment M. By comparing the colors on both sides of the dividing line, the color difference value is calculated to evaluate the resin separation effect.

[0086] The image recognition control system of the traditional method does not have access to the flow signal. The present invention accesses the flow signal, calculates the flow rate in the control device and stores the flow rate and flow rate data, and combines the color moment of the image recognition control device to comprehensively judge the resin separation effect.

[0087] The flow meter signal is connected to the resin intelligent identification control device; the flow rate, flow velocity and color moment identification are integrated together for judgment.

[0088] The analysis control unit obtains the data Q of the remote flow meter 300 and calculates the backwash water flow rate, which is expressed as:

[0089] u=Q / S

[0090] Wherein, S represents the cross-sectional area of ​​the separation tower;

[0091] The resin separation effect is judged through online image recognition. Combined with the separation identification color moment M of each set of test mixed fats and whether the resin separation situation N is identified, it is evaluated whether the resin meets the separation requirements, the optimal separation flow rate and flow velocity of the set of mixed fats are determined, and the resin with the best separation effect is selected.

[0092] Judgment steps:

[0093] (1) The color moment value M≥120, the separation boundary is clear N=2, and the resin separation effect of this set of mixing ratio is excellent

[0094] (2) The color moment value is 30≤M<120, the separation boundary is clearer, N=1, and the resin separation effect of this set of mixing ratios is good.

[0095] (3) The color moment value M is less than 30, the separation boundary is not clear N = 0, and the resin separation effect of this set of mixing ratios is poor

[0096] (4) The control device records the M, N, and u values ​​of each fat mixing ratio test and stores them in the database

[0097] (5) Based on the database, comparative analysis can be performed to select resins and proportions that are beneficial for on-site use.

[0098] Example 2, reference Figure 3 , as one embodiment of the present invention, provides a dynamic simulation test method for resin high tower separation, comprising:

[0099] Step 1: Connect the electrical control cabinet of the high-tower separation dynamic simulation experimental device to the power supply, and check whether the pipeline valves are open and closed and the electrical control cabinet is in normal condition.

[0100] Step 2: Connect the main unit and camera of the resin interface intelligent identification and control device to the computer, and check whether the computer software equipment and network port status are normal.

[0101] Step 3: Initial state of the high-tower separation dynamic simulation test device: All valves are closed by default, and the flow is controlled by controlling the valve opening; perform intelligent identification of the resin interface and power-on test of the control device, remote access test and camera position fine-tuning.

[0102] Step 4: The following functions are achieved through the valve and start-stop water pump operations on the separation tower simulation test device:

[0103] Step 4.1.1, adding resin through the top inlet of the separation tower;

[0104] Step 4.1.2, open valves #1, #2, and #3, start the water pump switch, and open exhaust valve #14. When water flows out of valve #14, the separation tower is full of water and water enters from the upper part of the separation tower.

[0105] Step 4.1.3, open valves #1, #2, #3, #4, and #5, start the water pump switch, and unload the resin from the separation tower;

[0106] Step 4.1.4, open valves #1, #2, and #7, and start the water pump switch. Water enters the lower part of the separation tower to perform resin backwashing. The flow rate is controlled from large to small by controlling the valve opening, and the flow data is transmitted to the resin interface intelligent identification and control device to achieve the resin support and stratification functions: After backwashing separation, the resin interface intelligent identification and control device is used to identify the color moment between the positive and negative resins, and to judge the positive and negative resin stratification interface;

[0107] Step 4.1.5, open valves #1, #2, #3, #11, start the water pump switch; water flows out from the lower part of the separation tower:

[0108] Step 4.1.6. Open valves #2, #7, and #10 to drain the tower.

[0109] Step 4.1.7, open valves #4, #8, #9, and #10, and start the water pump switch; draw resin from the bottom of the resin barrel under negative pressure, so that the resin is sucked from the bottom of the resin barrel, and water comes out from the top of the separation tower, and is sucked by the pump and discharged from valve No. 10.

[0110] Step 4.2.1. Conduct a mixed test for different brands and types of cation and anion resins to determine the effect of backwash separation. Make the backwash water flow rate from large to small, that is, the flow rate from large to small, first flush all the resins into the funnel section at the top of the separation tower, and gradually reduce the rising flow rate of the backwash water. The particles with different settling speeds fall in turn to achieve the purpose of separating the cation and anion resins. Record the flow data and feed it back to the intelligent recognition and control device of the resin interface to calculate the water flow rate, adjust the valve, and record the pictures and color moment values ​​of the resin separation corresponding to each flow rate or flow rate.

[0111] Step 4.3.1. For the same brand of cation and anion resins, test different ratios (e.g., cation and anion ratios of 1:1, 2:1, and 3:1) to determine the effect of backwash separation. Adjust the backwash water flow rate from large to small, that is, the flow rate from large to small, and first flush all the resins into the funnel section at the top of the separation tower. By gradually reducing the rising flow rate of the backwash water, particles with different settling velocities fall in turn to achieve the purpose of separating the cation and anion resins. Record the flow data, feed it back to the intelligent recognition and control device of the resin interface, calculate the water flow rate, adjust the valve, and record the image and color moment value of the resin separation corresponding to each flow rate or flow rate.

[0112] Step 4.4.1, open valves #1, #2, #7, and start the water pump switch. Water enters the lower part of the separation tower to perform resin backwashing. The flow rate is controlled from large to small by controlling the valve opening, and the flow data is transmitted to the resin interface intelligent identification and control device to achieve the resin support and stratification functions: After backwashing separation, the resin interface intelligent identification and control device is used to identify the color moment between the positive and negative resins, and the positive and negative resin stratification interface is judged;

[0113] This operation is to perform the backwash function; backwash resins of various ratios to make separation judgments; judge the separation color moment through the intelligent recognition and control device of the resin interface; judge the separation effect of the cation and anion mixed resins of the test ratio through data such as flow rate, flow velocity, and color moment.

[0114] Example 3

[0115] An embodiment of the present invention is different from the first two embodiments in that:

[0116] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0117] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0118] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0119] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0120] Example 4

[0121] As an embodiment of the present invention, a dynamic simulation test method for resin high tower separation is provided. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through calculation and simulation experiments.

[0122] 1. The height of adding a certain brand of cation and yin mixed fat is 37cm, and the calculated volume is 22.77L

[0123] 2. Debug the flow rate from large to small, and test the flow rates of 50, 40, 30, and 20 L / min of the bottom water inlet main pipe;

[0124] (1) Adjust the water inlet valve, the flow meter displays 50L / min, and the resin conveying image intelligent recognition and control device calculates the water flow rate to be 48.7m / h. The camera recognizes the resin and finds that it is obviously moving around and is washed away by the water flow and floats up. The positive and negative resins are washed to the highest point, the negative resin floats on the upper layer, and the positive resin floats on the lower layer.

[0125] (2) Adjust the water inlet valve, the flow meter displays 40L / min, and the water flow rate is calculated to be 39.0m / h. The floating amplitude of the resin is reduced, and the interface between the positive and negative resins can be seen.

[0126] (3) Adjust the water inlet valve to 30L / min, and calculate the water flow rate to be 29.2m / h. The interface between the positive and negative resins is clear, and the interface fluctuates slightly up and down.

[0127] (4) 20L / min, the calculated water flow rate is 19.5m / h, and the interface between the cation and anion resins is clear

[0128] (5) Close the water inlet valve, 0L / min, flow rate is 0m / h, the resin is clearly stratified N=1, the color moment value is 98, which meets the separation endpoint judgment, the identification is successful, and the separation effect is very good.

[0129] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dynamic simulation test device for resin high tower separation, characterized in that: include: Desalted water tank (100), booster pump (200), remote flow meter (300), control cabinet and start / stop switch (400), separation tower (500), resin storage tank (600), valve (700), camera (800), resin interface intelligent identification and control device (900); The bottom water outlet of the desalted water tank (100) is connected to the upper water inlet and the bottom water inlet of the separation tower (500) respectively through a booster pump (200) and a remote flow meter (300); The booster pump (200) is connected to a control cabinet and a start-stop switch (400), and desalted water can be transported into the separation tower through an upper water inlet or a lower water inlet by starting the pump and opening different valves; The remote flow meter (300) is connected to the resin interface intelligent identification and control device (900); The top cover of the separation tower (500) can be opened and closed, and resin can be added; The valve (700) controls the flow rate of desalted water by its opening size, and the valve (700) includes valves 1# to 14#; The camera (800) is placed on the side of the peephole on the separation tower 500. The camera (800) is connected to the resin interface intelligent identification and control device (900) and is used to monitor the cation-anion resin separation interface after resin backwashing and stratification in the separation tower, identify and record the color moment value of the cation-anion resin separation interface, and obtain data from the remote flow meter (300).

2. The dynamic simulation test device for resin high tower separation according to claim 1, characterized in that: include: When resin and deionized water exist in the separation tower (500), water is introduced from the bottom through the booster pump (200) to start backwashing and stratifying the mixed cation and anion resins. The backwashing and stratification is controlled from large to small by controlling the opening of the valve (700); The bottom grease outlet of the separation tower (500) is connected to the upper grease inlet and the bottom grease outlet of the resin storage tank (600) through a valve and a pipeline. By starting the booster pump, water is transported from the upper part and the resin is pressed from the lower part into the resin storage tank. When the separation tower (500) is full of water, water is pumped from the upper part of the separation tower (500) by the booster pump (200) to form a negative pressure state, thereby driving the resin to enter the bottom of the separation tower from the fat outlet at the bottom of the resin storage barrel.

3. The dynamic simulation test method for resin high tower separation according to claim 2, characterized in that: The resin interface intelligent recognition and control device (900) is composed of an interface image acquisition unit, an interface intelligent recognition unit and an analysis control unit; The resin separation process is monitored by high-definition camera technology, the resin separation process is automatically judged, and the mixed resin is separated in the separation tower by sending signals to the program control system; The analysis control unit obtains the data Q of the remote flow meter 300 and calculates the backwash water flow rate, which is expressed as: u=Q / S Wherein, S represents the cross-sectional area of ​​the separation tower.

4. The dynamic simulation test method for resin high tower separation according to claim 3, characterized in that: The resin separation effect is judged through online image recognition. Combined with the separation identification color moment M of each set of test mixed fats and whether the resin separation situation N is identified, it is evaluated whether the resin meets the separation requirements, the optimal separation flow rate and flow velocity of the set of mixed fats are determined, and the resin with the best separation effect is selected.

5. A test method using the dynamic simulation test device for resin high tower separation as claimed in any one of claims 1 to 4, characterized in that: include: Connect the electric control cabinet of the high tower separation dynamic simulation experimental device to the power supply, and check whether the pipeline valves are open and closed and the electric control cabinet is in normal state; Connect the main unit and camera of the resin conveying image intelligent recognition and control device to the computer, and check that the computer software equipment and network port status are normal; Initial state of the high tower separation dynamic simulation test device; The simulation test was carried out using a separation tower simulation test device.

6. The dynamic simulation test method for resin high tower separation according to claim 5, characterized in that: The initial state includes all valves being closed by default, and controlling the flow rate by controlling the valve opening; performing intelligent identification of the resin interface and power-on testing of the control device, remote access testing, and fine-tuning of the camera position.

7. The dynamic simulation test method for resin high tower separation according to claim 6, characterized in that: The simulation test performed by the separation tower simulation test device includes adding resin through the top inlet of the separation tower; Open valves #1, #2, and #3, start the water pump switch, open exhaust valve #14, and let water in from the upper part of the separation tower. When valve #14 starts to discharge water, close it in time, and the separation tower is filled with water; Open valves #1, #2, #3, #4, and #5, start the water pump switch, and unload the resin from the separation tower; Open valves #1, #2, and #7, start the water pump switch, let water flow into the lower part of the separation tower, and perform resin backwashing. The flow rate is controlled from large to small by controlling the valve opening, and the flow data is transmitted to the resin conveying image intelligent recognition and control device to realize the resin support and layering functions; After backwashing and separation, the resin interface intelligent identification and control device can be used to identify the color moment between the positive and negative resins and determine the interface between the positive and negative resins. The separation effect of the cation-anion mixed resin of the test ratio is judged by the flow rate, flow velocity and color moment data; Open valves #1, #2, #3, and #11, start the water pump switch, and discharge water from the lower part of the separation tower; Open valves #2, #7, and #10 to drain the separation tower; Open valves #4, #8, #9, and #10, and start the water pump switch; draw resin from the bottom of the resin barrel under negative pressure, so that the resin is sucked from the bottom of the resin barrel, and water comes out from the top of the separation tower, and is sucked by the pump and discharged from valve #10.

8. The dynamic simulation test method for resin high tower separation according to claim 7, characterized in that: The resin backwashing includes conducting a test mixing test according to different cation and anion ratios to determine the effect of backwash separation, so that the backwash water flow rate is from large to small, that is, the flow rate is from large to small, firstly all the resins are flushed into the funnel section at the top of the separation tower, and by gradually reducing the rising flow rate of the backwash water, particles with different settling speeds fall in turn, so as to achieve the purpose of separating the cation and anion resins; Record the flow data and feed it back to the intelligent identification and control device of the resin delivery interface to calculate the water flow rate and adjust the valve. At the same time, record the image and color moment value of the resin separation corresponding to each flow rate or flow rate.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the dynamic simulation test method for resin high-tower separation according to any one of claims 5 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the dynamic simulation test method for resin high-tower separation according to any one of claims 5 to 8 are implemented.

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