A preparation monitoring and regulation system and method for organosilicon hydrolyzed oil
By using Raman spectrometer and FTIR infrared spectrometer in the preparation process of silicone hydrolyzed oil, combined with BP neural network to build a reaction vessel regulation model, the hysteresis problem of the hydrolysis process is solved, real-time monitoring and regulation are achieved, and automated production is supported.
Patent Information
- Application Number
- CN202510046549.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2045-01-13
AI Technical Summary
In the preparation process of silicone hydrolyzed oil in the prior art, there is a hysteresis in the monitoring and regulation of the hydrolysis process, and it is impossible to monitor and regulate effectively in a timely manner, affecting the preparation efficiency.
The hydrolysis process is monitored in real time by using Raman spectrometer and FTIR infrared spectrometer, and the hydrolysis process is constructed by constructing a reaction vessel adjustment model, supervised training and verification based on the BP neural network, and the compensation value of the control parameters is output to achieve real-time monitoring and regulation of the hydrolysis process.
Real-time monitoring and feedback adjustment of silicone hydrolyzed oil is realized, reducing hysteresis and providing conditions for automated production.
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Figure CN119943182B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of control and regulation of industrial equipment, and in particular relates to a preparation monitoring and regulation system and method for organosilicon hydrolysis oil. Background Art
[0002] In the prior art, during the preparation of organosilicon hydrolyzed oil, the monitoring and regulation of the hydrolysis process is mainly carried out by obtaining the hydrolyzate from a sampling window and then sending it to a laboratory or inspection room for analysis and testing. This process requires multiple steps and multiple people to complete. This process takes a certain amount of time, and the monitoring and regulation of the hydrolysis process has a certain lag, which makes it impossible to effectively and timely monitor and regulate the hydrolysis process, which is not conducive to the smooth preparation of organosilicon hydrolyzed oil.
[0003] Since the preparation of organosilicon hydrolyzed oil requires multiple devices to be carried out sequentially, the monitoring of each device is carried out using the existing technology, which will cause the lag in monitoring and adjusting the hydrolysis process to increase and the hydrolysis process cannot be adjusted in time.
[0004] In view of this, based on the Chinese invention patent CN118546370A, a Raman spectrometer and an FTIR infrared spectrometer were added to the hydrolysis process to achieve real-time monitoring and adjustment of the hydrolysis process. For this real-time monitoring and adjustment, it is necessary to connect with the preparation and production equipment and management of silicone hydrolyzed oil. In response to this situation, the present invention application was proposed. Summary of the Invention
[0005] The goal of the present invention is to add a Raman spectrometer and an FTIR infrared spectrometer to the hydrolysis process based on Chinese invention patent CN118546370A to achieve real-time monitoring and adjustment of the hydrolysis process. This real-time monitoring and adjustment requires technical solutions connected to the preparation and management of silicone hydrolyzed oil.
[0006] In order to achieve the above objectives, the present invention provides a preparation monitoring and regulating system and method for organosilicon hydrolyzed oil.
[0007] The specific technical solution adopted in the present invention is:
[0008] In one aspect, the present invention provides a method for monitoring and regulating the preparation of organosilicon hydrolyzed oil. The method is applied to a hydrolysis reaction vessel with a stirring function to monitor and regulate the hydrolysis of the organosilicon hydrolyzed oil, comprising:
[0009] Obtain standard Raman spectral analysis data of the organosilicon hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory as a standard hydrolysis degree; obtain the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel to build a monitoring and adjustment database;
[0010] Inputting the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel into the monitoring and adjustment database, and obtaining the concentration parameters of the hydrolysis reference substance of the organosilicon hydrolyzed oil based on Raman spectroscopy analysis;
[0011] Normalizing the concentration parameter of the organosilicon hydrolyzed oil hydrolysis reference and the standard Raman spectrum analysis data, and then comparing them. The obtained result is used as a parameter for measuring the hydrolysis degree of the organosilicon hydrolyzed oil.
[0012] A mapping relationship between measurement parameters and control parameters of the reaction vessel is established based on the timestamp, and a data set is established based on the mapping relationship; a reaction vessel adjustment model is constructed based on the BP neural network;
[0013] The reaction vessel adjustment model is supervisedly trained, verified, and tested using the data set until the accuracy of the reaction vessel adjustment model meets preset requirements, thereby obtaining the constructed reaction vessel adjustment model. According to the measurement parameters, compensation values of the control parameters of the reaction vessel are output based on the constructed reaction vessel adjustment model, and the control parameters of the reaction vessel are adjusted to achieve monitoring and adjustment of the preparation of silicone hydrolyzed oil.
[0014] Furthermore, the control parameters of the reaction vessel include the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed of the reaction vessel, and the stirring time;
[0015] Furthermore, the organosilicon hydrolyzed oil hydrolysis reference concentration parameter is divided into an initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and an organosilicon hydrolyzed oil hydrolysis reference concentration parameter during hydrolysis: wherein, the measurement parameter obtained by normalizing the initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and the standard Raman spectrum analysis data and then performing a ratio test is the initial measurement parameter value; the measurement parameter obtained by normalizing the organosilicon hydrolyzed oil hydrolysis reference concentration parameter during hydrolysis and the standard Raman spectrum analysis data and then performing a ratio test is the process measurement parameter value;
[0016] By means of a reaction vessel adjustment model, the process value of the measurement parameter is differentiated from the initial value of the measurement parameter;
[0017] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in an arithmetic progression, it is determined that the hydrolysis is proceeding in an orderly manner and no intervention is required;
[0018] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction vessel need to be adjusted.
[0019] Furthermore, when the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction vessel need to be adjusted, including:
[0020] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter repeatedly shows 0≤A≤0.1, it is determined that the stirring is uneven, and only the stirring speed and stirring time of the reaction container need to be adjusted.
[0021] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven and it is necessary to adjust the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed of the reaction vessel, and the stirring time;
[0022] Furthermore, when the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven, and the spectrum of the hydrolysis reaction at this time is obtained by FTIR infrared spectrometer, and the chemical components in the hydrolyzate and the molecular structure information corresponding to the chemical components are analyzed.
[0023] The chemical components of the hydrolyzate and the molecular structure information corresponding to the chemical components obtained by the analysis are compared with the standard Raman spectral analysis data of the silicone hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory, and the difference between the hydrolysis degree of the hydrolyzate at this time and the standard hydrolysis degree is obtained. This difference is used as a compensation value in the process of adjusting the temperature, pressure, stirring speed and stirring time in the reaction vessel when the hydrolysis is uneven.
[0024] In another aspect, the present invention provides a system for monitoring and regulating the preparation of organosilicon hydrolyzed oil based on a method for monitoring and regulating the preparation of organosilicon hydrolyzed oil, comprising a Raman spectroscopy measurement module, wherein at least a measurement probe of the Raman spectroscopy measurement module is located within a reaction vessel to obtain a Raman spectrum of reactants within the reaction vessel for use by an analysis module;
[0025] An FTIR infrared spectrometer module, wherein at least the measuring probe of the FTIR infrared spectrometer is located in the reaction vessel to obtain an FTIR infrared spectrum of the reactants in the reaction vessel for use by the analysis module; the measuring probe of the FTIR infrared spectrometer and the measuring probe of the Raman spectrum measurement module are arranged at a 90-degree angle, and the measuring probe of the Raman spectrum measurement module is located above the measuring probe of the FTIR infrared spectrometer;
[0026] An input module is used to input or obtain from a historical database the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed and stirring time of the reaction vessel, and the feeding information of the organosilicon hydrolyzed oil to be produced;
[0027] The analysis module includes a monitoring and regulation database construction unit, a data set establishment unit, and a reaction vessel regulation model construction unit. The reaction vessel regulation model construction unit obtains data from the monitoring and regulation database construction unit and the data set establishment unit and uses the data set to supervise, train, verify, and test the reaction vessel regulation model based on a BP neural network until the accuracy of the reaction vessel regulation model meets the preset requirements, obtains the constructed reaction vessel regulation model, and outputs compensation values of the control parameters of the reaction vessel based on the constructed reaction vessel regulation model, and adjusts the control parameters of the reaction vessel to achieve monitoring and regulation of the preparation of organic silicon hydrolyzed oil.
[0028] The positive effects of the present invention are: by automatically acquiring standard Raman spectral analysis data and comparing it with the concentration parameters of the hydrolysis reference during the hydrolysis process, the degree of hydrolysis is determined; the reaction vessel adjustment model obtains data from the monitoring and adjustment database and the data set and uses the data set based on the BP neural network to perform supervised training, verification and testing on the reaction vessel adjustment model until the accuracy of the reaction vessel adjustment model meets the preset requirements, the constructed reaction vessel adjustment model is obtained, and the compensation value of the control parameter of the reaction vessel is output based on the constructed reaction vessel adjustment model, and the control parameter of the reaction vessel is adjusted to realize the preparation monitoring and adjustment of the organosilicon hydrolysis oil, realize real-time monitoring and feedback adjustment of the organosilicon hydrolysis, and realize connection with production management, providing conditions for intervention in automated production. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a flow chart of the method described in a system and method for preparing, monitoring, and regulating organosilicon hydrolyzed oil according to the present invention;
[0030] Figure 2 This is a structural diagram of the system described in the preparation monitoring and regulation system and method of organic silicon hydrolyzed oil in the present invention. DETAILED DESCRIPTION
[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following, in combination with the drawings and examples, describes in detail a preparation, monitoring and regulation system and method for silicone hydrolyzed oil proposed in accordance with the present invention, its specific implementation method, structure, characteristics and effects.
[0032] In the following description, different references to "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0033] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0034] The acquisition, storage, use, and processing of data in the technical solution of the present invention are in compliance with the relevant provisions of national laws and regulations.
[0035] The present application is applicable to the monitoring and regulation of the hydrolysis process during the preparation of organosilicon hydrolyzed oil in the prior art, mainly by obtaining the hydrolyzate from the sampling window and then sending it to the laboratory or inspection room for analysis and testing, or the layout of a new production line. For this prior art, a Raman spectrometer and an FTIR infrared spectrometer are added to the hydrolysis process to achieve real-time monitoring and regulation of the hydrolysis process. For this real-time monitoring and regulation, the technical problem of connecting with the preparation and production equipment and management of organosilicon hydrolyzed oil can be solved by the technical solution provided by the present invention. The preparation monitoring and regulation system and method of organosilicon hydrolyzed oil provided by the present invention are specifically described below with reference to the accompanying drawings.
[0036] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:
[0037] Example 1: Figure 1 As shown, the present invention provides a method for monitoring and regulating the preparation of organosilicon hydrolyzed oil. The monitoring and regulating method is applied to a hydrolysis reaction vessel with a stirring function to monitor and regulate the hydrolysis of organosilicon hydrolyzed oil, comprising:
[0038] S100: Obtaining standard Raman spectroscopy analysis data of the organosilicon hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory as a standard hydrolysis degree;
[0039] S200: Obtaining the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel, and building a monitoring and adjustment database;
[0040] S300: Inputting the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel into a monitoring and adjustment database, and obtaining the concentration parameter of the organosilicon hydrolyzed oil hydrolysis reference substance based on Raman spectroscopy analysis;
[0041] S400: normalizing the concentration parameter of the organosilicon hydrolyzed oil hydrolysis reference and the standard Raman spectroscopy analysis data, and then performing a ratio test, and using the result as a parameter for measuring the degree of hydrolysis of the organosilicon hydrolyzed oil;
[0042] S500: Establishing a mapping relationship between the measurement parameter and the control parameter of the reaction container according to the timestamp, and establishing a data set according to the mapping relationship;
[0043] S600: Constructing a reaction vessel adjustment model based on a BP neural network;
[0044] S700: The reaction vessel adjustment model is supervisedly trained, verified, and tested using the data set until the accuracy of the reaction vessel adjustment model meets the preset requirements, and the constructed reaction vessel adjustment model is obtained. According to the measurement parameters, the compensation value of the control parameter of the reaction vessel is output based on the constructed reaction vessel adjustment model, and the control parameter of the reaction vessel is adjusted to achieve monitoring and adjustment of the preparation of silicone hydrolyzed oil.
[0045] Specifically, the organosilicon hydrolyzed oil hydrolysis reference concentration parameter is divided into an initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and an organosilicon hydrolyzed oil hydrolysis reference concentration parameter during hydrolysis; wherein, the measurement parameter obtained by normalizing the initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and the standard Raman spectrum analysis data and then performing a ratio test is the initial measurement parameter value; the measurement parameter obtained by normalizing the organosilicon hydrolyzed oil hydrolysis reference concentration parameter during hydrolysis and the standard Raman spectrum analysis data and then performing a ratio test is the process measurement parameter value;
[0046] By means of a reaction vessel adjustment model, the process value of the measurement parameter is differentiated from the initial value of the measurement parameter;
[0047] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in an arithmetic progression, it is determined that the hydrolysis is proceeding in an orderly manner and no intervention is required;
[0048] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction vessel need to be adjusted.
[0049] The control parameters of the reaction vessel include the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed and stirring time of the reaction vessel, and the pH value of the hydrolysis environment;
[0050] Preferably, when the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction container need to be adjusted, including:
[0051] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter repeatedly shows 0≤A≤0.1, it is determined that the stirring is uneven, and only the stirring speed and stirring time of the reaction container need to be adjusted.
[0052] When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven and it is necessary to adjust the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed of the reaction vessel, and the stirring time;
[0053] Preferably, when the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven, and the spectrum of the hydrolysis reaction at this time is obtained by FTIR infrared spectrometer, and the chemical components in the hydrolyzate and the molecular structure information corresponding to the chemical components are analyzed and obtained.
[0054] The chemical components of the hydrolyzate and the molecular structure information corresponding to the chemical components obtained by the analysis are compared with the standard Raman spectral analysis data of the silicone hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory, and the difference between the hydrolysis degree of the hydrolyzate at this time and the standard hydrolysis degree is obtained. This difference is used as a compensation value in the process of adjusting the temperature, pressure, stirring speed and stirring time in the reaction vessel when the hydrolysis is uneven.
[0055] The results of the chemical components and molecular structure information corresponding to the chemical components in the hydrolyzate obtained by the analysis are compared with the standard full spectrum analysis data of the organosilicon hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory, and the difference between the hydrolysis degree of the hydrolyzate at this time and the standard hydrolysis degree is obtained. It should be understood that the results of the chemical components and molecular structure information corresponding to the chemical components in the hydrolyzate are used to indicate the composition of the various chemical components of the hydrolyzate during the test, as well as the molecular structure of each chemical component and the concentration of each chemical component at this time, and the standard full spectrum analysis data of the organosilicon hydrolyzed oil when it is fully hydrolyzed in the laboratory The purpose of the method is to show the composition of the various chemical components of the hydrolyzate when hydrolysis is sufficient, as well as the molecular structure of each chemical component and the concentration of each chemical component at this time. Therefore, by taking the difference between the corresponding data, the difference between the degree of hydrolysis at this time and the degree of hydrolysis when hydrolysis is sufficient can be obtained; and this difference, that is, the difference between the degree of hydrolysis of the hydrolyzate and the standard degree of hydrolysis, can indicate the time required for the degree of hydrolysis at the time of detection to complete hydrolysis without adjusting the control premise. Based on the measurement parameters, the difference at this time is input into the constructed reaction vessel adjustment model, and the compensation value of the control parameter of the reaction vessel can be output. This compensation value includes the compensation value of the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed of the reaction vessel, and the stirring time.
[0056] Example 2: Figure 1 and Figure 2 As shown, the present invention provides a system for monitoring and regulating the preparation of organosilicon hydrolyzed oil based on a method for monitoring and regulating the preparation of organosilicon hydrolyzed oil, comprising a Raman spectroscopy measurement module, wherein at least a measurement probe of the Raman spectroscopy measurement module is located in a reaction vessel to obtain a Raman spectrum of reactants in the reaction vessel for use by an analysis module;
[0057] An FTIR infrared spectrometer module, wherein at least the measuring probe of the FTIR infrared spectrometer is located in the reaction vessel to obtain an FTIR infrared spectrum of the reactants in the reaction vessel for use by the analysis module; the measuring probe of the FTIR infrared spectrometer and the measuring probe of the Raman spectrum measurement module are arranged at a 90-degree angle, and the measuring probe of the Raman spectrum measurement module is located above the measuring probe of the FTIR infrared spectrometer;
[0058] An input module for inputting or reading from a historical database the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed and stirring time of the reaction vessel, the pH value of the hydrolysis environment, and the feeding information of the organosilicon hydrolyzed oil to be produced;
[0059] The analysis module includes a monitoring and regulation database construction unit, a data set establishment unit and a reaction vessel regulation model construction unit. The reaction vessel regulation model construction unit obtains data from the monitoring and regulation database construction unit and the data set establishment unit and uses the data set to supervise, train, verify and test the reaction vessel regulation model based on a BP neural network until the accuracy of the reaction vessel regulation model meets the preset requirements, obtains the constructed reaction vessel regulation model, and outputs the compensation value of the control parameter of the reaction vessel based on the constructed reaction vessel regulation model, and adjusts the control parameter of the reaction vessel to achieve monitoring and regulation of the preparation of organic silicon hydrolyzed oil.
[0060] This embodiment determines the degree of hydrolysis by automatically acquiring standard Raman spectroscopy analysis data and comparing it with the concentration parameters of the hydrolysis reference during the hydrolysis process. The reaction vessel adjustment model obtains data from the monitoring and adjustment database and the data set and uses the data set based on the BP neural network to perform supervised training, verification and testing on the reaction vessel adjustment model until the accuracy of the reaction vessel adjustment model meets the preset requirements. The constructed reaction vessel adjustment model is obtained, and the compensation value of the control parameter of the reaction vessel is output based on the constructed reaction vessel adjustment model. The control parameters of the reaction vessel are adjusted to realize monitoring and adjustment of the preparation of the organosilicon hydrolyzed oil, realize actual monitoring and feedback adjustment of the organosilicon hydrolysis, and realize connection with production management, providing conditions for intervention in automated production.
[0061] The foregoing has broadly outlined some aspects and features of various embodiments and should be construed as merely illustrative of various potential applications. Other beneficial results may be achieved by applying the disclosed information in different ways or by combining various aspects of the disclosed embodiments. Further aspects and a more comprehensive understanding may be obtained by referring to the detailed description of the exemplary embodiments in conjunction with the accompanying drawings, within the scope defined by the claims.
[0062] The above embodiments provide a detailed description of the present invention. Of course, the above description is not intended to limit the present invention, nor is the present invention limited to the above examples. Any changes, modifications, additions, subtractions, or substitutions made by those skilled in the art within the spirit and scope of the present invention also fall within the scope of protection of the present invention.
Claims
1. A method for preparing, monitoring and regulating organosilicon hydrolyzed oil, characterized in that: The monitoring and regulating method is applied to a hydrolysis reaction vessel with a stirring function to monitor and regulate the hydrolysis of organosilicon hydrolysis oil, and the monitoring and regulating method comprises: Obtain standard Raman spectral analysis data of the organosilicon hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory as a standard hydrolysis degree; obtain the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel to build a monitoring and adjustment database; Inputting the feeding information of the organosilicon hydrolyzed oil to be produced and the control parameters of the reaction vessel into the monitoring and adjustment database, and obtaining the concentration parameters of the hydrolysis reference substance of the organosilicon hydrolyzed oil based on Raman spectroscopy analysis; Normalizing the concentration parameter of the organosilicon hydrolyzed oil hydrolysis reference and the standard Raman spectrum analysis data, and then comparing them. The obtained result is used as a parameter for measuring the hydrolysis degree of the organosilicon hydrolyzed oil. A mapping relationship between measurement parameters and control parameters of the reaction vessel is established based on the timestamp, and a data set is established based on the mapping relationship; a reaction vessel adjustment model is constructed based on the BP neural network; The reaction vessel adjustment model is supervisedly trained, verified, and tested using the data set until the accuracy of the reaction vessel adjustment model meets preset requirements, thereby obtaining the constructed reaction vessel adjustment model; according to the measurement parameters, compensation values of the control parameters of the reaction vessel are output based on the constructed reaction vessel adjustment model, and the control parameters of the reaction vessel are adjusted to achieve monitoring and adjustment of the preparation of silicone hydrolyzed oil.
2. The method for preparing, monitoring and regulating organosilicon hydrolyzed oil according to claim 1, characterized in that: The control parameters of the reaction container include the temperature in the reaction container, the pressure in the reaction container, the stirring speed of the reaction container, and the stirring time.
3. The method for preparing, monitoring and regulating organosilicon hydrolyzed oil according to claim 2, characterized in that: The organosilicon hydrolyzed oil hydrolysis reference concentration parameter is divided into an initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and an organosilicon hydrolyzed oil hydrolysis reference concentration parameter during hydrolysis: wherein, the measurement parameter obtained by normalizing the initial organosilicon hydrolyzed oil hydrolysis reference concentration parameter and the standard Raman spectrum analysis data and then performing a ratio test is the initial measurement parameter value; the measurement parameter obtained by normalizing the organosilicon hydrolyzed oil hydrolysis reference concentration parameter and the standard Raman spectrum analysis data and then performing a ratio test is the process measurement parameter value; By means of a reaction vessel adjustment model, the process value of the measurement parameter is differentiated from the initial value of the measurement parameter; When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in an arithmetic progression, it is determined that the hydrolysis is proceeding in an orderly manner and no intervention is required; When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction vessel need to be adjusted.
4. The method for preparing, monitoring and regulating organosilicon hydrolyzed oil according to claim 3, characterized in that: When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter changes in a non-arithmetic progression, it is determined that the hydrolysis is uneven and the control parameters of the reaction vessel need to be adjusted, including: When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter repeatedly shows 0≤A≤0.1, it is determined that the stirring is uneven and only the stirring speed and stirring time of the reaction vessel need to be adjusted; When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven, and the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed of the reaction vessel, and the stirring time need to be adjusted.
5. The method for preparing, monitoring and regulating organosilicon hydrolyzed oil according to claim 4, characterized in that: When the difference A between the process value of the measurement parameter and the initial value of the measurement parameter shows a non-linear change, it is determined that the hydrolysis is uneven, and the spectrum of the hydrolysis reaction at this time is obtained by FTIR infrared spectrometer, and the chemical components in the hydrolyzate and the molecular structure information corresponding to the chemical components are analyzed; The chemical components of the hydrolyzate and the molecular structure information corresponding to the chemical components obtained by the analysis are compared with the standard Raman spectral analysis data of the silicone hydrolyzed oil to be produced when it is fully hydrolyzed in the laboratory, and the difference between the hydrolysis degree of the hydrolyzate at this time and the standard hydrolysis degree is obtained. This difference is used as a compensation value in the process of adjusting the temperature, pressure, stirring speed and stirring time in the reaction vessel when the hydrolysis is uneven.
6. A system for monitoring and regulating the preparation of organosilicon hydrolyzed oil using the method for monitoring and regulating the preparation of organosilicon hydrolyzed oil according to any one of claims 1 to 5, characterized in that: It includes a Raman spectrum measurement module, at least a measurement probe of the Raman spectrum measurement module is located in the reaction container to obtain the Raman spectrum of the reactants in the reaction container for use by the analysis module; An FTIR infrared spectrometer module, wherein at least the measuring probe of the FTIR infrared spectrometer is located in the reaction vessel to obtain an FTIR infrared spectrum of the reactants in the reaction vessel for use by the analysis module; the measuring probe of the FTIR infrared spectrometer and the measuring probe of the Raman spectrum measurement module are arranged at a 90-degree angle, and the measuring probe of the Raman spectrum measurement module is located above the measuring probe of the FTIR infrared spectrometer; An input module is used to input or obtain from a historical database the temperature in the reaction vessel, the pressure in the reaction vessel, the stirring speed and stirring time of the reaction vessel, and the feeding information of the organosilicon hydrolyzed oil to be produced; The analysis module includes a monitoring and regulation database construction unit, a data set establishment unit, and a reaction vessel regulation model construction unit. The reaction vessel regulation model construction unit obtains data from the monitoring and regulation database construction unit and the data set establishment unit and uses the data set to supervise, train, verify, and test the reaction vessel regulation model based on a BP neural network until the accuracy of the reaction vessel regulation model meets the preset requirements, obtains the constructed reaction vessel regulation model, and outputs compensation values of the control parameters of the reaction vessel based on the constructed reaction vessel regulation model, and adjusts the control parameters of the reaction vessel to achieve monitoring and regulation of the preparation of organic silicon hydrolyzed oil.
Citation Information
Patent Citations
Preparation method and preparation equipment of organosilicon hydrolyzed oil
CN118546370A
Method for control of a bioprocess by spectrometry and trained model and controller therefore
CN113993987A
Lysozyme fermentation temperature control method based on LSTM-PID
CN115966267A