A method and system for regulating a mixed urea solution production process

Abstract

The application discloses a urea solution mixed preparation process adjusting method and system, and relates to the field of automatic control technology, which comprises the following steps: receiving a urea solution target concentration, and determining corresponding urea amount and solvent amount according to the urea solution target concentration and solvent properties; mixing and preparing the urea solution according to the corresponding urea amount and solvent amount at a preset temperature, obtaining the initial solubility of the urea solution after a preset time, adjusting the temperature of the urea solution based on the initial solubility, stirring the urea solution according to preset stirring parameters, determining the uniform mixing degree of the urea solution after a preset time, adjusting the stirring parameters according to the uniform mixing degree of the urea solution, determining the ph value of the urea solution, and adjusting the ph value of the urea solution according to the ph value, the urea solution concentration and the urea solution target concentration. The adjusting effect and control precision are improved, and the preparation efficiency is ensured.

Description

Technical Field

[0001] This application relates to the field of automation control technology, and more specifically, to a method and system for regulating the preparation process of urea solution mixing. Background Technology

[0002] In the preparation of urea solutions, adjustment techniques are crucial to achieving the desired solution concentration and properties. These parameters can be adjusted by controlling the amount of urea, solvent, temperature, stirring speed and time, solvent selection, and pH value.

[0003] First, adjusting the amount of urea used is a crucial factor in controlling the solution concentration. The desired urea solution concentration can be achieved by increasing or decreasing the amount of urea used. Accurately weigh the urea and calculate the required amount based on the target concentration to ensure the correct amount of urea is added during mixing.

[0004] Secondly, adjusting the amount of solvent is also crucial for regulating the concentration of the urea solution. The concentration of the urea solution can be altered by increasing or decreasing the amount of solvent. Select an appropriate amount of solvent as needed to achieve the desired concentration.

[0005] Temperature control is another important parameter. Temperature affects the solubility of urea in solution. By controlling the temperature, the concentration of the urea solution can be adjusted. Higher temperatures generally increase the solubility of urea, while lower temperatures decrease it.

[0006] Stirring speed and time also play a crucial role in the mixing and uniform dispersion of urea solutions. By adjusting the stirring speed and time, it is possible to ensure that urea dissolves and is uniformly dispersed in the solvent. Proper stirring helps urea molecules to fully contact and mix with the solvent, thereby obtaining a homogeneous solution.

[0007] Furthermore, the choice of solvent and adjustment of pH value can also affect the properties and solubility of urea solutions. Different solvents have different solubilities and chemical properties, so it is important to choose an appropriate solvent according to the needs. Adjusting the pH value of the solution can also affect the dissociation behavior and solubility of urea, thereby adjusting the concentration and properties of the solution.

[0008] In summary, the precise control of the urea solution mixing and preparation process can be achieved by adjusting parameters such as urea dosage, solvent dosage, temperature, stirring speed and time, solvent selection, and pH value. The application of these background techniques can meet specific needs, ensuring that the obtained urea solution achieves the expected concentration and properties. Throughout the preparation process, safe operation and adherence to laboratory operating procedures are crucial to guarantee the accuracy and repeatability of the experiments.

[0009] In existing technologies, the preparation process of urea solution mixing is complex and subject to many variations. Adjusting fixed parameters results in poor adjustment effects, low control precision, and reduced preparation efficiency.

[0010] Therefore, how to improve control precision and adjustment effect is a technical problem that needs to be solved. Summary of the Invention

[0011] This invention provides a method for regulating the preparation process of urea solution mixing, thereby solving the technical problems of poor regulation effect, low control precision, and low preparation efficiency in existing technologies. The method includes:

[0012] Receive the target concentration of the urea solution and determine the corresponding amount of urea and solvent based on the target concentration of the urea solution and the properties of the solvent;

[0013] Based on the corresponding amount of urea and solvent, a urea solution is prepared by mixing at a preset temperature. After a preset time, the initial solubility of the urea solution is obtained.

[0014] The temperature of the urea solution is adjusted based on the initial solubility, and the urea solution is stirred according to the preset stirring parameters. After a preset time, the uniformity of the urea solution is determined.

[0015] Adjust the stirring parameters according to the uniformity of the urea solution, determine the pH value of the urea solution, and adjust the pH value of the urea solution according to the pH value, concentration, and target concentration of the urea solution.

[0016] In some embodiments of this application, the corresponding urea amount and solvent amount are determined based on the target concentration of the urea solution and the properties of the solvent, including:

[0017] In the preset dosage table, the target concentration of urea solution and the properties of solvent both correspond to a standard urea range and a standard solvent range.

[0018] The duration of the urea solution mixing process is predicted based on the target concentration of the urea solution and the properties of the solvent, and a predicted range of urea and a predicted range of solvent are determined based on the duration.

[0019] Compare the endpoints of the standard urea range and the predicted urea range, and compare the endpoints of the standard solvent range and the predicted solvent range.

[0020] If the difference between the standard urea range and the predicted urea range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard urea range and the predicted urea range is taken as the left endpoint value of the urea amount, and the larger of the right endpoint values ​​of the standard urea range and the predicted urea range is taken as the right endpoint value of the urea amount, thereby determining the urea amount.

[0021] Otherwise, the average of the left endpoint values ​​of the standard urea range and the predicted urea range is used as the left endpoint value of the urea quantity, and the average of the right endpoint values ​​of the standard urea range and the predicted urea range is used as the right endpoint value of the urea quantity, thereby determining the urea quantity.

[0022] If the difference between the standard solvent range and the predicted solvent range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the left endpoint value of the solvent quantity, and the larger of the right endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the right endpoint value of the solvent quantity, thereby determining the solvent quantity;

[0023] Otherwise, the solvent quantity is determined by taking the average of the left endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the left endpoint value of the solvent quantity, and the average of the right endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the right endpoint value of the solvent quantity.

[0024] In some embodiments of this application, adjusting the temperature of the urea solution based on its initial solubility includes:

[0025] If the initial solubility is not within the preset solubility range, a first correction factor is determined based on the positional relationship between the initial solubility and the preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0026] Otherwise, a second correction factor is determined based on the difference between the initial solubility and the endpoint values ​​of a similar preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0027] In some embodiments of this application, the stirring parameters are adjusted according to the uniformity of the urea solution, including:

[0028] If the uniformity of the urea solution is lower than the preset uniformity, the compensation amount is determined based on the difference between the uniformity of the urea solution and the preset uniformity, and the stirring parameters are compensated accordingly.

[0029] If the uniformity of the urea solution is still lower than the preset mixing degree after a period of compensation, the corresponding correction coefficient is selected to correct the compensated stirring parameters according to the compensation amount.

[0030] In some embodiments of this application, adjusting the pH value of the urea solution based on the pH value, concentration, and target concentration of the urea solution includes:

[0031] The calibration amount is determined based on the difference between the urea solution concentration and the target urea solution concentration. A correction factor is then selected based on the calibration amount and the pH value of the urea solution to adjust the pH value of the urea solution.

[0032] Correspondingly, this application also provides a urea solution mixing preparation process control system, the system comprising:

[0033] The first module is used to receive the target concentration of the urea solution and determine the corresponding amount of urea and solvent based on the target concentration of the urea solution and the properties of the solvent.

[0034] The second module is used to prepare a urea solution by mixing the corresponding amount of urea and solvent at a preset temperature, and after a preset time, to obtain the initial solubility of the urea solution.

[0035] The third module is used to adjust the temperature of the urea solution based on the initial solubility, and at the same time stir the urea solution according to the preset stirring parameters. After a preset time, the uniformity of the urea solution is determined.

[0036] The fourth module is used to adjust the stirring parameters according to the uniformity of the urea solution, determine the pH value of the urea solution, and adjust the pH value of the urea solution according to the pH value, concentration, and target concentration of the urea solution.

[0037] In some embodiments of this application, the first module is used for:

[0038] In the preset dosage table, the target concentration of urea solution and the properties of solvent both correspond to a standard urea range and a standard solvent range.

[0039] The duration of the urea solution mixing process is predicted based on the target concentration of the urea solution and the properties of the solvent, and a predicted range of urea and a predicted range of solvent are determined based on the duration.

[0040] Compare the endpoints of the standard urea range and the predicted urea range, and compare the endpoints of the standard solvent range and the predicted solvent range.

[0041] If the difference between the standard urea range and the predicted urea range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard urea range and the predicted urea range is taken as the left endpoint value of the urea amount, and the larger of the right endpoint values ​​of the standard urea range and the predicted urea range is taken as the right endpoint value of the urea amount, thereby determining the urea amount.

[0042] Otherwise, the average of the left endpoint values ​​of the standard urea range and the predicted urea range is used as the left endpoint value of the urea quantity, and the average of the right endpoint values ​​of the standard urea range and the predicted urea range is used as the right endpoint value of the urea quantity, thereby determining the urea quantity.

[0043] If the difference between the standard solvent range and the predicted solvent range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the left endpoint value of the solvent quantity, and the larger of the right endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the right endpoint value of the solvent quantity, thereby determining the solvent quantity;

[0044] Otherwise, the solvent quantity is determined by taking the average of the left endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the left endpoint value of the solvent quantity, and the average of the right endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the right endpoint value of the solvent quantity.

[0045] In some embodiments of this application, the third module is used for:

[0046] If the initial solubility is not within the preset solubility range, a first correction factor is determined based on the positional relationship between the initial solubility and the preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0047] Otherwise, a second correction factor is determined based on the difference between the initial solubility and the endpoint values ​​of a similar preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0048] In some embodiments of this application, the fourth module is used for:

[0049] If the uniformity of the urea solution is lower than the preset uniformity, the compensation amount is determined based on the difference between the uniformity of the urea solution and the preset uniformity, and the stirring parameters are compensated accordingly.

[0050] If the uniformity of the urea solution is still lower than the preset mixing degree after a period of compensation, the corresponding correction coefficient is selected to correct the compensated stirring parameters according to the compensation amount.

[0051] In some embodiments of this application, the fourth module is used for:

[0052] The calibration amount is determined based on the difference between the urea solution concentration and the target urea solution concentration. A correction factor is then selected based on the calibration amount and the pH value of the urea solution to adjust the pH value of the urea solution.

[0053] By applying the above technical solution, the target concentration of the urea solution is received, and the corresponding amount of urea and solvent is determined based on the target concentration and solvent properties. Based on the corresponding amount of urea and solvent, the urea solution is mixed and prepared at a preset temperature. After a preset time, the initial solubility of the urea solution is obtained. The temperature of the urea solution is adjusted based on the initial solubility, while the urea solution is stirred according to preset stirring parameters. After a preset time, the uniformity of the urea solution is determined. The stirring parameters are adjusted based on the uniformity of the urea solution, and the pH value of the urea solution is determined. The pH value of the urea solution is then adjusted based on the pH value, the urea solution concentration, and the target concentration. This application improves the accuracy of the amount of urea and solvent by determining the corresponding amount of urea and solvent based on the target concentration and solvent properties. By adjusting the temperature of the urea solution based on the initial solubility, adjusting the stirring parameters based on the uniformity of the urea solution, and adjusting the pH value based on the pH value, the urea solution concentration, and the target concentration, the adjustment effect and control precision are improved, ensuring preparation efficiency. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 A schematic flowchart of a method for adjusting the preparation process of urea solution mixing according to an embodiment of the present invention is shown;

[0056] Figure 2 A schematic diagram of a urea solution mixing and preparation process adjustment system proposed in an embodiment of the present invention is shown. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] This application provides a method for adjusting the urea solution mixing and preparation process, such as... Figure 1 As shown, the method includes the following steps:

[0059] Step S101: Receive the target concentration of the urea solution, and determine the corresponding amount of urea and solvent based on the target concentration of the urea solution and the properties of the solvent.

[0060] In this embodiment, different solvents have different properties, and therefore require different amounts of solvent.

[0061] In some embodiments of this application, the corresponding urea amount and solvent amount are determined based on the target concentration of the urea solution and the properties of the solvent, including:

[0062] In the preset dosage table, the target concentration of urea solution and the properties of solvent both correspond to a standard urea range and a standard solvent range.

[0063] The duration of the urea solution mixing process is predicted based on the target concentration of the urea solution and the properties of the solvent, and a predicted range of urea and a predicted range of solvent are determined based on the duration.

[0064] Compare the endpoints of the standard urea range and the predicted urea range, and compare the endpoints of the standard solvent range and the predicted solvent range.

[0065] If the difference between the standard urea range and the predicted urea range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard urea range and the predicted urea range is taken as the left endpoint value of the urea amount, and the larger of the right endpoint values ​​of the standard urea range and the predicted urea range is taken as the right endpoint value of the urea amount, thereby determining the urea amount.

[0066] Otherwise, the average of the left endpoint values ​​of the standard urea range and the predicted urea range is used as the left endpoint value of the urea quantity, and the average of the right endpoint values ​​of the standard urea range and the predicted urea range is used as the right endpoint value of the urea quantity, thereby determining the urea quantity.

[0067] If the difference between the standard solvent range and the predicted solvent range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the left endpoint value of the solvent quantity, and the larger of the right endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the right endpoint value of the solvent quantity, thereby determining the solvent quantity;

[0068] Otherwise, the solvent quantity is determined by taking the average of the left endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the left endpoint value of the solvent quantity, and the average of the right endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the right endpoint value of the solvent quantity.

[0069] In step S102, based on the corresponding amount of urea and solvent, a urea solution is prepared by mixing at a preset temperature. After a preset time, the initial solubility of the urea solution is obtained.

[0070] Step S103: Adjust the temperature of the urea solution based on the initial solubility, and stir the urea solution according to the preset stirring parameters. After a preset time, determine the uniformity of the urea solution mixture.

[0071] In some embodiments of this application, adjusting the temperature of the urea solution based on its initial solubility includes:

[0072] If the initial solubility is not within the preset solubility range, a first correction factor is determined based on the positional relationship between the initial solubility and the preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0073] Otherwise, a second correction factor is determined based on the difference between the initial solubility and the endpoint values ​​of a similar preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0074] In this embodiment, a first correction factor is determined based on the positional relationship between the initial dissolution and the preset solubility range, and the temperature of the urea solution is corrected accordingly. When the initial dissolution is located to the left of the preset solubility range, it indicates that the value is less than the range value. Therefore, the difference between the initial solubility and the left endpoint value of the range corresponds to a first correction factor, which corrects the temperature of the urea solution. The corrected temperature = the temperature of the urea solution * the first correction factor.

[0075] It should be noted that the subsequent correction factor is corrected in the same way.

[0076] Step S104: Adjust the stirring parameters according to the uniformity of the urea solution, determine the pH value of the urea solution, and adjust the pH value of the urea solution according to the pH value, concentration, and target concentration of the urea solution.

[0077] In this embodiment, the stirring parameters include stirring speed and stirring time.

[0078] In some embodiments of this application, the stirring parameters are adjusted according to the uniformity of the urea solution, including:

[0079] If the uniformity of the urea solution is lower than the preset uniformity, the compensation amount is determined based on the difference between the uniformity of the urea solution and the preset uniformity, and the stirring parameters are compensated accordingly.

[0080] If the uniformity of the urea solution is still lower than the preset mixing degree after a period of compensation, the corresponding correction coefficient is selected to correct the compensated stirring parameters according to the compensation amount.

[0081] In this embodiment, the compensation amount is either an increase or a decrease. The difference between the uniformity of the urea solution mixing and the preset mixing degree corresponds to a compensation amount. Each compensation amount corresponds to a correction coefficient.

[0082] In some embodiments of this application, adjusting the pH value of the urea solution based on the pH value, concentration, and target concentration of the urea solution includes:

[0083] The calibration amount is determined based on the difference between the urea solution concentration and the target urea solution concentration. A correction factor is then selected based on the calibration amount and the pH value of the urea solution to adjust the pH value of the urea solution.

[0084] By applying the above technical solution, the target concentration of the urea solution is received, and the corresponding amount of urea and solvent is determined based on the target concentration and solvent properties. Based on the corresponding amount of urea and solvent, the urea solution is mixed and prepared at a preset temperature. After a preset time, the initial solubility of the urea solution is obtained. The temperature of the urea solution is adjusted based on the initial solubility, while the urea solution is stirred according to preset stirring parameters. After a preset time, the uniformity of the urea solution is determined. The stirring parameters are adjusted based on the uniformity of the urea solution, and the pH value of the urea solution is determined. The pH value of the urea solution is then adjusted based on the pH value, the urea solution concentration, and the target concentration. This application improves the accuracy of the amount of urea and solvent by determining the corresponding amount of urea and solvent based on the target concentration and solvent properties. By adjusting the temperature of the urea solution based on the initial solubility, adjusting the stirring parameters based on the uniformity of the urea solution, and adjusting the pH value based on the pH value, the urea solution concentration, and the target concentration, the adjustment effect and control precision are improved, ensuring preparation efficiency.

[0085] Through the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware or by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) and includes several instructions to cause a computer device (such as a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0086] Correspondingly, this application also provides a urea solution mixing preparation process control system, such as... Figure 2 As shown, the system includes:

[0087] The first module 201 is used to receive the target concentration of the urea solution and determine the corresponding amount of urea and solvent based on the target concentration of the urea solution and the properties of the solvent.

[0088] The second module 202 is used to prepare a urea solution by mixing the corresponding amount of urea and solvent at a preset temperature, and after a preset time, to obtain the initial solubility of the urea solution.

[0089] The third module 203 is used to adjust the temperature of the urea solution based on the initial solubility, and at the same time stir the urea solution according to the preset stirring parameters. After a preset time, the uniformity of the urea solution is determined.

[0090] The fourth module 204 is used to adjust the stirring parameters according to the uniformity of the urea solution, determine the pH value of the urea solution, and adjust the pH value of the urea solution according to the pH value, concentration, and target concentration of the urea solution.

[0091] In some embodiments of this application, the first module 201 is used for:

[0092] In the preset dosage table, the target concentration of urea solution and the properties of solvent both correspond to a standard urea range and a standard solvent range.

[0093] The duration of the urea solution mixing process is predicted based on the target concentration of the urea solution and the properties of the solvent, and a predicted range of urea and a predicted range of solvent are determined based on the duration.

[0094] Compare the endpoints of the standard urea range and the predicted urea range, and compare the endpoints of the standard solvent range and the predicted solvent range.

[0095] If the difference between the standard urea range and the predicted urea range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard urea range and the predicted urea range is taken as the left endpoint value of the urea amount, and the larger of the right endpoint values ​​of the standard urea range and the predicted urea range is taken as the right endpoint value of the urea amount, thereby determining the urea amount.

[0096] Otherwise, the average of the left endpoint values ​​of the standard urea range and the predicted urea range is used as the left endpoint value of the urea quantity, and the average of the right endpoint values ​​of the standard urea range and the predicted urea range is used as the right endpoint value of the urea quantity, thereby determining the urea quantity.

[0097] If the difference between the standard solvent range and the predicted solvent range exceeds a preset difference value, the smaller of the left endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the left endpoint value of the solvent quantity, and the larger of the right endpoint values ​​of the standard solvent range and the predicted solvent range is taken as the right endpoint value of the solvent quantity, thereby determining the solvent quantity;

[0098] Otherwise, the solvent quantity is determined by taking the average of the left endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the left endpoint value of the solvent quantity, and the average of the right endpoint values ​​of the standard solvent range quantity and the predicted solvent range quantity as the right endpoint value of the solvent quantity.

[0099] In some embodiments of this application, the third module 203 is used for:

[0100] If the initial solubility is not within the preset solubility range, a first correction factor is determined based on the positional relationship between the initial solubility and the preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0101] Otherwise, a second correction factor is determined based on the difference between the initial solubility and the endpoint values ​​of a similar preset solubility range, and the temperature of the urea solution is corrected accordingly.

[0102] In some embodiments of this application, the fourth module 204 is used for:

[0103] If the uniformity of the urea solution is lower than the preset uniformity, the compensation amount is determined based on the difference between the uniformity of the urea solution and the preset uniformity, and the stirring parameters are compensated accordingly.

[0104] If the uniformity of the urea solution is still lower than the preset mixing degree after a period of compensation, the corresponding correction coefficient is selected to correct the compensated stirring parameters according to the compensation amount.

[0105] In some embodiments of this application, the fourth module 204 is used for:

[0106] The calibration amount is determined based on the difference between the urea solution concentration and the target urea solution concentration. A correction factor is then selected based on the calibration amount and the pH value of the urea solution to adjust the pH value of the urea solution.

[0107] Those skilled in the art will understand that the modules in the system of the implementation scenario can be distributed throughout the system of the implementation scenario as described, or they can be modified to reside in one or more systems different from this implementation scenario. The modules of the above-mentioned implementation scenario can be merged into one module, or they can be further divided into multiple sub-modules.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method of adjusting a urea solution hybrid production process, characterized by, The method comprises: receiving a urea solution target concentration, and determining a corresponding urea amount and solvent amount according to the urea solution target concentration and solvent properties; mixing and preparing the urea solution according to the corresponding urea amount and solvent amount at a preset temperature, obtaining an initial solubility of the urea solution after a preset time; adjusting the temperature of the urea solution based on the initial solubility, and stirring the urea solution according to a preset stirring parameter, determining a uniform mixing degree of the urea solution after a preset time; adjusting the stirring parameter according to the uniform mixing degree of the urea solution, determining a pH value of the urea solution, and adjusting the pH value of the urea solution according to the pH value, the urea solution concentration and the urea solution target concentration.

2. The method of claim 1, wherein the urea solution mixing process is adjusted by, and determining the corresponding urea amount and solvent amount according to the urea solution target concentration and solvent properties, comprising: in the preset proportioning table, the urea solution target concentration and the solvent properties correspond to a standard urea range amount and a standard solvent range amount; predicting the length of the urea solution mixing process according to the urea solution target concentration and the solvent properties, and determining a predicted urea range amount and a predicted solvent range amount according to the length; comparing the endpoint values of the standard urea range amount and the predicted urea range amount, and comparing the endpoint values of the standard solvent range amount and the predicted solvent range amount; if the difference between the standard urea range amount and the predicted urea range amount exceeds a preset difference value, taking the smaller one of the left endpoint values of the standard urea range amount and the predicted urea range amount as the left endpoint value of the urea amount, and taking the larger one of the right endpoint values of the standard urea range amount and the predicted urea range amount as the right endpoint value of the urea amount, thereby determining the urea amount; otherwise, taking the average of the left endpoint values of the standard urea range amount and the predicted urea range amount as the left endpoint value of the urea amount, and taking the average of the right endpoint values of the standard urea range amount and the predicted urea range amount as the right endpoint value of the urea amount, thereby determining the urea amount; if the difference between the standard solvent range amount and the predicted solvent range amount exceeds a preset difference value, taking the smaller one of the left endpoint values of the standard solvent range amount and the predicted solvent range amount as the left endpoint value of the solvent amount, and taking the larger one of the right endpoint values of the standard solvent range amount and the predicted solvent range amount as the right endpoint value of the solvent amount, thereby determining the solvent amount; otherwise, taking the average of the left endpoint values of the standard solvent range amount and the predicted solvent range amount as the left endpoint value of the solvent amount, and taking the average of the right endpoint values of the standard solvent range amount and the predicted solvent range amount as the right endpoint value of the solvent amount, thereby determining the solvent amount.

3. The method of claim 1, wherein the urea solution mixing process is adjusted by, adjusting the temperature of the urea solution based on the initial solubility, comprising: if the initial solubility is not within a preset solubility interval, determining a first correction factor based on the position relationship between the initial solubility and the preset solubility interval, and correcting the temperature of the urea solution; otherwise, determining a second correction factor according to the difference between the initial solubility and the endpoint values of the similar preset solubility interval, and correcting the temperature of the urea solution.

4. The method for adjusting the urea solution mixing preparation process as described in claim 1, characterized in that, adjusting the stirring parameter according to the uniform mixing degree of the urea solution, comprising: if the uniform mixing degree of the urea solution is lower than a preset mixing degree, determining a compensation amount based on the difference between the uniform mixing degree of the urea solution and the preset mixing degree, and compensating the stirring parameter; After the compensation for a preset time, if the uniform mixing degree of the urea solution is still lower than the preset mixing degree, a corresponding correction coefficient is selected according to the compensation amount to correct the stirring parameters after the compensation.

5. The method for adjusting the urea solution mixing preparation process as described in claim 1, characterized in that, The ph value of the urea solution is adjusted according to the ph value of the urea solution, the concentration of the urea solution and the target concentration of the urea solution, including: The correction coefficient is selected based on the difference between the concentration of the urea solution and the target concentration of the urea solution to adjust the ph value of the urea solution.

6. A urea solution hybrid production process regulation system characterized by, The system comprises: The first module is configured to receive the target concentration of the urea solution and determine the corresponding urea amount and solvent amount according to the target concentration of the urea solution and the properties of the solvent. The second module is configured to prepare the urea solution by mixing the corresponding urea amount and solvent amount at a preset temperature, obtain the initial solubility of the urea solution after a preset time, and adjust the temperature of the urea solution based on the initial solubility. The third module is configured to stir the urea solution according to the preset stirring parameters, determine the uniform mixing degree of the urea solution after a preset time, and adjust the stirring parameters according to the uniform mixing degree of the urea solution. The fourth module is configured to adjust the ph value of the urea solution, and adjust the ph value of the urea solution according to the ph value of the urea solution, the concentration of the urea solution and the target concentration of the urea solution.

7. The urea solution hybrid production process regulation system of claim 6, wherein, The first module is configured to: In the preset proportioning table, the target concentration of the urea solution and the properties of the solvent correspond to a standard urea range amount and a standard solvent range amount. The time length of the urea solution mixing process is predicted according to the target concentration of the urea solution and the properties of the solvent, and a predicted urea range amount and a predicted solvent range amount are determined according to the time length. The two endpoint values of the standard urea range amount and the predicted urea range amount are compared, and the two endpoint values of the standard solvent range amount and the predicted solvent range amount are compared. If the difference between the standard urea range amount and the predicted urea range amount exceeds a preset difference value, the smaller one of the left endpoint values of the standard urea range amount and the predicted urea range amount is taken as the left endpoint value of the urea amount, and the larger one of the right endpoint values of the standard urea range amount and the predicted urea range amount is taken as the right endpoint value of the urea amount, so as to determine the urea amount. Otherwise, the average of the left endpoint values of the standard urea range amount and the predicted urea range amount is taken as the left endpoint value of the urea amount, and the average of the right endpoint values of the standard urea range amount and the predicted urea range amount is taken as the right endpoint value of the urea amount, so as to determine the urea amount. If the difference between the standard solvent range amount and the predicted solvent range amount exceeds a preset difference value, the smaller one of the left endpoint values of the standard solvent range amount and the predicted solvent range amount is taken as the left endpoint value of the solvent amount, and the larger one of the right endpoint values of the standard solvent range amount and the predicted solvent range amount is taken as the right endpoint value of the solvent amount, so as to determine the solvent amount. Otherwise, the average of the left endpoint values of the standard solvent range amount and the predicted solvent range amount is taken as the left endpoint value of the solvent amount, and the average of the right endpoint values of the standard solvent range amount and the predicted solvent range amount is taken as the right endpoint value of the solvent amount, so as to determine the solvent amount.

8. The urea solution hybrid production process regulation system of claim 6, wherein, The third module is configured to: If the initial solubility is not within the preset solubility interval, a first correction factor is determined based on the positional relationship between the initial solubility and the preset solubility interval, and the temperature of the urea solution is corrected. Otherwise, a second correction factor is determined according to the difference between the initial solubility and the endpoint value of the similar preset solubility interval, and the temperature of the urea solution is corrected.

9. The urea solution hybrid production process regulation system of claim 6, wherein, The fourth module is configured to: If the uniform mixing degree of the urea solution is lower than the preset mixing degree, a compensation amount is determined based on the difference between the uniform mixing degree of the urea solution and the preset mixing degree, and the stirring parameter is compensated. After a preset time of compensation, if the uniform mixing degree of the urea solution is still lower than the preset mixing degree, the compensated stirring parameter is corrected according to the compensation amount and a corresponding correction coefficient.

10. The urea solution hybrid production process regulation system of claim 6, wherein, The fourth module is configured to: A correction coefficient is selected based on the difference between the concentration of the urea solution and the target concentration of the urea solution, and the ph value of the urea solution is adjusted according to the correction coefficient.

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