A method for flushing based on an attachment condition of an inner wall of a pipeline and a related device

Abstract

The application discloses a method for flushing based on an attachment state of an inner wall of a pipeline and related equipment, relates to the technical field of online steel coil spraying, and comprises the following steps: acquiring a pressure characteristic signal, wherein the pressure characteristic signal is calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, and the second pressure signal is acquired based on a second pressure gauge; the first pressure gauge, a first electromagnetic valve, a pipeline to be flushed, a second electromagnetic valve and the second pressure gauge are sequentially connected along a flow direction of sprayed paint; performing principal component transformation on the pressure characteristic signal to obtain a deviation degree value; comparing the deviation degree value with a solution wall-hanging critical value to obtain a comparison result; and performing descaling flushing on the pipeline to be flushed according to the comparison result.

Description

Technical Field

[0001] This application relates to the field of online spraying technology for steel coils, and more particularly to a method and related equipment for flushing based on the adhesion status of the inner wall of a pipeline. Background Technology

[0002] Currently, in silicon steel production, a layer of magnesium oxide solution needs to be sprayed onto the end of the silicon steel coil as an inhibitor. However, during long-term use, magnesium oxide is prone to precipitate on the conveying pipe of the magnesium oxide spraying machine, which causes changes in the spraying process parameters and affects the spraying quality. With long-term use, more and more magnesium oxide will adhere to the pipe wall, eventually leading to pipe blockage, which in turn affects the spraying of magnesium oxide solution and the subsequent production quality of silicon steel coils.

[0003] However, conventional methods involve replacing the pipes when blockages occur, or flushing with pure water during spraying intervals. These are all passive anti-blockage measures, and the magnesium oxide buildup inside the pipes cannot be detected during normal spraying. Once a blockage occurs, the entire pipe needs to be replaced, disrupting production. Furthermore, magnesium oxide adhering to the pipe walls also affects the solution flow rate, indirectly impacting the spraying effect. Currently, there is no suitable method to solve these problems. Therefore, it is necessary to propose a method for spraying based on the magnesium oxide buildup on the inner wall of the pipes, to at least address some of the aforementioned issues. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In a first aspect, embodiments of this application provide a method for flushing based on the adhesion status of the inner wall of a pipe, used in a silicon steel coil end-face spraying device, the method comprising:

[0006] Acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, the second pressure signal is acquired based on a second pressure gauge, and the first pressure gauge, the first solenoid valve, the pipe to be flushed, the second solenoid valve and the second pressure gauge are connected sequentially along the flow direction of the sprayed coating.

[0007] The deviation value is obtained by performing principal component transformation on the pressure characteristic signal;

[0008] The deviation value is compared with the critical value for solution adhesion to the wall to obtain the comparison result;

[0009] The pipe to be flushed is then descaled based on the comparison results.

[0010] In one embodiment of the present invention, the step of acquiring the pressure characteristic signal includes:

[0011] Obtain the initial pressure characteristic signal;

[0012] The initial pressure characteristic signal is sampled and processed to obtain the pressure characteristic signal.

[0013] In one embodiment of the present invention, the step of performing principal component transformation on the pressure characteristic signal to obtain the deviation value includes:

[0014] Construct a covariance matrix based on the pressure characteristic signal;

[0015] Solving the covariance matrix yields multiple non-negative eigenvalues ​​and multiple eigenvectors, where the eigenvectors correspond to the non-negative eigenvalues.

[0016] The principal component values ​​and the number of principal components are calculated by using the cumulative variance contribution rate method on multiple non-negative eigenvalues ​​and multiple eigenvectors.

[0017] The deviation value is obtained based on the principal component value and the number of principal components.

[0018] In one embodiment of the present invention, the step of comparing the deviation value with the critical value for solution wall adhesion to obtain the comparison result includes:

[0019] If the deviation value is less than the critical value for solution adhesion to the wall, then the comparison result indicates that the pipe to be flushed is in a normal state.

[0020] If the deviation value is greater than or equal to the critical value for solution adhesion to the wall, then the comparison result indicates that the pipe to be flushed is in a state of magnesium oxide adhesion.

[0021] In one embodiment of the present invention, the step of descaling the pipe to be flushed based on the comparison result includes:

[0022] If the comparison result indicates that the pipe to be flushed is in a normal state, then there is no need to perform descaling flushing on the pipe to be flushed.

[0023] In one embodiment of the present invention, the step of descaling the pipe to be flushed based on the comparison result further includes:

[0024] If the comparison result indicates that the pipe to be flushed is in a state of magnesium oxide adhesion, then the descaling centrifugal pump is started to flush the pipe to be flushed.

[0025] In one embodiment of the present invention, the step of descaling and flushing the pipeline to be flushed by starting a descaling centrifugal pump includes:

[0026] The actual power of the descaling centrifugal pump is calculated based on the deviation value and correlation coefficient.

[0027] The descaling centrifugal pump is controlled according to the actual power to perform descaling and flushing on the pipeline to be flushed.

[0028] Secondly, this application proposes a system for flushing based on the adhesion status of the inner wall of a pipe, the system comprising: a data acquisition module, a calculation module, and a comparison module;

[0029] The data acquisition module is configured to acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, the second pressure signal is acquired based on a second pressure gauge, and the first pressure gauge, the first solenoid valve, the pipe to be flushed, the second solenoid valve, and the second pressure gauge are connected sequentially along the flow direction of the sprayed coating.

[0030] The calculation module is configured to perform principal component transformation on the pressure feature signal to obtain the deviation value;

[0031] The comparison module is configured to: compare the deviation value with the critical value of solution wall adhesion to obtain a comparison result; and perform descaling flushing on the pipeline to be flushed based on the comparison result.

[0032] Thirdly, an electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program stored in the memory to implement the steps of a flushing method based on the adhesion condition of the inner wall of a pipe as described in any of the first aspects above.

[0033] Fourthly, this application also proposes a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the steps of a flushing method based on the adhesion condition of the inner wall of a pipe, as described in any of the first aspects.

[0034] In summary, a method for flushing based on the adhesion status of the inner wall of a pipe according to an embodiment of this application includes: acquiring a pressure characteristic signal, wherein the pressure characteristic signal is calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, the second pressure signal is acquired based on a second pressure gauge, and the first pressure gauge, a first solenoid valve, the pipe to be flushed, a second solenoid valve, and the second pressure gauge are sequentially connected along the flow direction of the sprayed coating; performing principal component transformation on the pressure characteristic signal to obtain a deviation value; comparing the deviation value with a critical value for solution wall adhesion to obtain a comparison result; and performing descaling flushing on the pipe to be flushed according to the comparison result. The method for flushing based on the adhesion status of the inner wall of a pipe proposed in this application, through online monitoring of the magnesium oxide adhesion status inside the pipe to be flushed, timely assesses the magnesium oxide adhesion status and adjusts the spraying process parameters, thereby achieving stable spraying quality while reducing equipment downtime and the workload of equipment maintenance personnel.

[0035] The flushing method based on the adhesion condition of the inner wall of the pipe proposed in this application, other advantages, objectives and features of this application will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 This application provides a schematic flowchart of a flushing method based on the adhesion status of the inner wall of a pipe.

[0038] Figure 2 A schematic diagram of a silicon steel coil end-face spraying device provided in this application embodiment;

[0039] Figure 3 A schematic diagram of a system structure for flushing based on the adhesion status of the inner wall of a pipe, provided in an embodiment of this application;

[0040] Figure 4 A schematic diagram of a control electronic device structure for flushing based on the adhesion status of the inner wall of a pipe, provided in an embodiment of this application;

[0041] Figure 2 The correspondence between the figure labels and figure titles in the figures is as follows:

[0042] 101 Mixing tank, 102 Centrifugal pump, 103 First pressure gauge, 104 First solenoid valve, 105 Pipe to be flushed, 106 Second solenoid valve, 107 Second pressure gauge, 108 Nozzle, 109 Descaling centrifugal pump, 110 Wastewater tank. Detailed Implementation

[0043] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0044] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0045] Please see Figure 1 This is a schematic flowchart of a flushing method based on the adhesion status of the inner wall of a pipe, provided by an embodiment of this application. Specifically, it may include:

[0046] S110. Acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge 103, the second pressure signal is acquired based on a second pressure gauge 107, and the first pressure gauge 103, the first solenoid valve 104, the pipe to be flushed 105, the second solenoid valve 106 and the second pressure gauge 107 are connected sequentially along the flow direction of the sprayed coating.

[0047] For example, please refer to Figure 2This is a schematic diagram of a silicon steel coil end-face spraying device provided in an embodiment of this application. The silicon steel coil end-face spraying device includes a mixing tank 101, a centrifugal pump 102, a first pressure gauge 103, a first solenoid valve 104, a pipe to be rinsed 105, a second solenoid valve 106, a second pressure gauge 107, and a spray head 108 connected in sequence. It also includes a descaling centrifugal pump 109 connected to the first solenoid valve 104 and a wastewater tank 110 connected to the second solenoid valve 106. Specifically, after the magnesium oxide solution leaves the centrifugal pump 102, it passes through the first pressure gauge 103, and the first pressure signal measured by the first pressure gauge 103 is P1. Before the magnesium oxide solution enters the nozzle 108 through the flushing pipe 105, it also passes through the second pressure gauge 107, and the second pressure signal measured by the second pressure gauge 107 is P1. Under normal operating conditions of the nozzle 108, the pressure characteristic signal is X, X = P1 - P2. The descaling centrifugal pump 109 is used to transport the descaling solution. The descaling solution enters the flushing pipe 105 through the first solenoid valve 104 to flush the flushing pipe 105. After flushing is completed, the descaling solution enters the wastewater tank 110 through the second solenoid valve 106. At this time, the cleaning is completed.

[0048] S120. Perform principal component transformation on the pressure characteristic signal to obtain the deviation value;

[0049] For example, due to the large number of fluid parameters and the complexity of the system, it is impossible to establish an accurate mathematical model. This application obtains the deviation value J by performing principal component transformation on the pressure characteristic signal.

[0050] S130. Compare the deviation value with the critical value of solution adhesion to the wall to obtain the comparison result;

[0051] For example, the deviation value J is compared with the solution wall adhesion threshold value to obtain a comparison result that reflects the magnesium oxide adhesion on the inner wall of the pipe 105 to be flushed, wherein the solution wall adhesion threshold value is 5%.

[0052] S140. Based on the comparison results, the pipe 105 to be flushed is descaled and flushed.

[0053] For example, since the comparison result reflects the magnesium oxide adhesion on the inner wall of the pipe 105 to be flushed, it is necessary to determine whether it is necessary to start the descaling centrifugal pump 109 to deliver descaling solution into the pipe 105 to be flushed, so as to descaling and flushing the pipe 105 to be flushed by the descaling solution.

[0054] In summary, the flushing method based on the adhesion status of the inner wall of the pipe proposed in this application can achieve stable spraying quality by timely assessing the adhesion status of magnesium oxide inside the pipe 105 to be flushed through online monitoring, and adjusting the spraying process parameters. At the same time, it can reduce equipment downtime and reduce the workload of equipment maintenance personnel.

[0055] In some examples, the steps preceding the acquisition of the pressure characteristic signal include:

[0056] Obtain the initial pressure characteristic signal;

[0057] The initial pressure characteristic signal is sampled and processed to obtain the pressure characteristic signal.

[0058] For example, since the initial pressure characteristic signal d is a continuous signal, it cannot be calculated. Therefore, the initial pressure characteristic signal d needs to be sampled for 20ms to obtain the pressure characteristic signal X, which is a discrete signal.

[0059] In some examples, the step of performing principal component transformation on the pressure feature signal to obtain the deviation value includes:

[0060] Construct a covariance matrix based on the pressure characteristic signal;

[0061] Solving the covariance matrix yields multiple non-negative eigenvalues ​​and multiple eigenvectors, where the eigenvectors correspond to the non-negative eigenvalues.

[0062] The principal component values ​​and the number of principal components are calculated by using the cumulative variance contribution rate method on multiple non-negative eigenvalues ​​and multiple eigenvectors.

[0063] The deviation value is obtained based on the principal component value and the number of principal components.

[0064] For example, a covariance matrix of pressure changes is constructed using pressure characteristic signals, as shown in the following equation:

[0065]

[0066] Where n is the number of pressure feature vectors collected, and E[X] is the expected value of the collected feature vectors.

[0067] Starting from the covariance matrix, solve... Given k non-negative eigenvalues ​​and their corresponding k eigenvectors, where the k non-negative eigenvalues ​​are sorted as λ1, λ2, ..., λk. kIn this embodiment, the values ​​are (1.5, 1.7, 1.4, 1.0, 0.5, 0.3, 0.01, 0.02, 0.02), and the feature vector is P = (p1, p2, ..., p...). k In this embodiment, the values ​​are (1.7, 1.5, 1.4, 1.0, 0.5, 0.3, 0.02, 0.02, 0.01). After determining the number of eigenvectors, the cumulative variance contribution rate method is used to calculate the k non-negative eigenvalues ​​and k eigenvectors to obtain the principal component values ​​and the number of principal components. The specific calculation method is shown in equation (2).

[0068]

[0069] in, These are the k largest pressure characteristic values. It is the sum of all m pressure eigenvalues;

[0070] The deviation value J is obtained by using the principal component values ​​and the number of principal components, where J = λ. a / λ f , λ f This is a normal value; 'a' is the critical value for solution adhesion to the wall. In this application, the critical value for solution adhesion to the wall is 5%.

[0071] In some examples, the step of comparing the deviation value with the critical value for solution wall adhesion to obtain the comparison result includes:

[0072] If the deviation value is less than the critical value for solution adhesion to the wall, then the comparison result indicates that the pipe 105 to be flushed is in a normal state.

[0073] If the deviation value is greater than or equal to the critical value for solution adhesion to the wall, the comparison result is that the pipe 105 to be flushed is in a state of magnesium oxide adhesion.

[0074] For example, the deviation value J is compared with the critical value a for solution adhesion to the wall. If the deviation value J is less than the critical value a, the comparison result is that the pipe 105 to be flushed is in a normal state. If the deviation value J is greater than or equal to the critical value a, the comparison result is that the pipe 105 to be flushed is in a state of magnesium oxide adhesion.

[0075] In some examples, the steps for descaling the pipe 105 to be flushed based on the comparison results include:

[0076] If the comparison result indicates that the pipe 105 to be flushed is in a normal state, then there is no need to perform descaling flushing on the pipe 105 to be flushed.

[0077] For example, if the comparison result shows that the pipe 105 to be flushed is in a normal state, it proves that there is no magnesium oxide adhering to the inner wall of the pipe 105 to be flushed at this time, then there is no need to perform descaling flushing on the pipe 105 to be flushed.

[0078] In some examples, the step of descaling the pipe 105 to be flushed based on the comparison results also includes:

[0079] If the comparison result indicates that the pipe 105 to be flushed is in a state of magnesium oxide adhesion, then the descaling centrifugal pump 109 is started to descale and flush the pipe 105 to be flushed.

[0080] For example, if the comparison result shows that the pipe 105 to be rinsed is in a state of magnesium oxide adhesion, it proves that magnesium oxide is attached to the inner wall of the pipe 105 to be rinsed at this time. During the working interval, the descaling centrifugal pump 109 is started, and the descaling centrifugal pump 109 starts to deliver descaling solution. The descaling solution enters the pipe 105 to be rinsed through the second solenoid valve 106, and flows out of the pipe 105 to be rinsed in front of the nozzle 108 and into the wastewater tank 110. The rinsing time of the descaling solution in the pipe 105 to be rinsed is 60 seconds, and then it is switched to pure water to rinse the pipe 105 to be rinsed for 30 seconds. At this time, the descaling rinsing of the pipe 105 to be rinsed is completed. After the descaling rinsing of the pipe 105 to be rinsed is completed, the first solenoid valve 104 is switched to normal spraying pipe. Specifically, the first solenoid valve 104 is connected to the centrifugal pump 102 and the first pressure gauge 103, and at this time, normal spraying state is entered.

[0081] In some examples, the step of descaling the pipe 105 to be flushed by starting the descaling centrifugal pump 109 includes:

[0082] The actual power of the descaling centrifugal pump 109 is calculated based on the deviation value and correlation coefficient.

[0083] The descaling centrifugal pump 109 is controlled according to the actual power to perform descaling and flushing of the pipeline 105 to be flushed.

[0084] For example, during the spraying process, the power Q of the descaling centrifugal pump 109 can be adjusted according to the increasing trend of the deviation value J. Specifically, the actual power Q = bk of the descaling centrifugal pump 109 is calculated using the deviation value J and the correlation coefficient, where b is the correlation coefficient. The actual power is used to control the descaling centrifugal pump 109 to perform descaling and rinsing of the pipe 105 to be rinsed. This allows for more precise control of the spraying quality.

[0085] like Figure 3 As shown, this application proposes a system for flushing based on the adhesion status of the inner wall of a pipe. The system includes: a data acquisition module 21, a calculation module 22, and a comparison module 23.

[0086] The data acquisition module 21 is configured to acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge 103, the second pressure signal is acquired based on a second pressure gauge 107, and the first pressure gauge 103, the first solenoid valve 104, the pipe to be flushed 105, the second solenoid valve 106 and the second pressure gauge 107 are connected sequentially along the flow direction of the sprayed coating.

[0087] The calculation module 22 is configured to perform principal component transformation on the pressure feature signal to obtain the deviation value;

[0088] The comparison module 23 is configured to: compare the deviation value with the critical value of solution wall adhesion to obtain a comparison result; and perform descaling flushing on the pipe 105 to be flushed according to the comparison result.

[0089] The effects of applying the aforementioned method in the above system can be found in the description of the aforementioned method embodiments, and will not be repeated here.

[0090] like Figure 4 As shown, this application embodiment also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of any of the above-described methods for tire position self-learning.

[0091] Since the electronic device described in this embodiment is the device used to implement the degradation trend prediction device for a weighing sensor in this application embodiment, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in this application embodiment. Therefore, how the electronic device implements the method in this application embodiment will not be described in detail here. Any device used by those skilled in the art to implement the method in this application embodiment is within the scope of protection of this application.

[0092] In practical implementation, when the computer program 311 is executed by the processor, it can achieve the following: Figure 1 Any of the corresponding implementation methods in the embodiments.

[0093] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0094] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0095] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0096] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0097] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0098] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute the LDPC decoding method of a solid-state drive controller.

[0099] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0100] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0101] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0102] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0103] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0104] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0105] 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.

[0106] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0107] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method for flushing based on the adhesion condition of the inner wall of a pipe, used in a silicon steel coil end-face spraying device, characterized in that, The method includes: Acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, the second pressure signal is acquired based on a second pressure gauge, and the first pressure gauge, the first solenoid valve, the pipe to be flushed, the second solenoid valve and the second pressure gauge are connected sequentially along the flow direction of the sprayed coating. The deviation value is obtained by performing principal component transformation on the pressure characteristic signal; The deviation value is compared with the critical value for solution adhesion to the wall to obtain the comparison result; Based on the comparison results, the pipe to be flushed is subjected to descaling flushing. The steps of performing principal component transformation on the pressure characteristic signal to obtain the deviation value include: A covariance matrix is ​​constructed based on the pressure characteristic signal. The covariance matrix is ​​as follows: , where n is the number of pressure feature vectors collected, and E[X] is the expected value of the collected feature vectors; Solving the covariance matrix yields multiple non-negative eigenvalues ​​and multiple eigenvectors, where the eigenvectors correspond to the non-negative eigenvalues. The principal component values ​​and the number of principal components are calculated by using the cumulative variance contribution rate method on multiple non-negative eigenvalues ​​and multiple eigenvectors. The deviation value is obtained based on the principal component value and the number of principal components.

2. The method for flushing based on the adhesion condition of the inner wall of a pipe according to claim 1, characterized in that, Prior to the steps of acquiring the pressure characteristic signal, the following steps are included: Obtain the initial pressure characteristic signal; The initial pressure characteristic signal is sampled and processed to obtain the pressure characteristic signal.

3. The method for flushing based on the adhesion status of the inner wall of a pipe according to claim 1, characterized in that, The step of comparing the deviation value with the critical value for solution wall adhesion to obtain the comparison result includes: If the deviation value is less than the critical value for solution adhesion to the wall, then the comparison result indicates that the pipe to be flushed is in a normal state. If the deviation value is greater than or equal to the critical value for solution adhesion to the wall, then the comparison result indicates that the pipe to be flushed is in a state of magnesium oxide adhesion.

4. The method for flushing based on the adhesion status of the inner wall of a pipe according to claim 3, characterized in that, The steps for descaling the pipeline to be flushed based on the comparison results include: If the comparison result indicates that the pipe to be flushed is in a normal state, then there is no need to perform descaling flushing on the pipe to be flushed.

5. The method for flushing based on the adhesion status of the inner wall of a pipe according to claim 3, characterized in that, The step of descaling the pipeline to be flushed based on the comparison results also includes: If the comparison result indicates that the pipe to be flushed is in a state of magnesium oxide adhesion, then the descaling centrifugal pump is started to flush the pipe to be flushed.

6. The method for flushing based on the adhesion status of the inner wall of a pipe according to claim 5, characterized in that, The steps of descaling and flushing the pipeline to be flushed by starting a descaling centrifugal pump include: The actual power of the descaling centrifugal pump is calculated based on the deviation value and correlation coefficient. The descaling centrifugal pump is controlled according to the actual power to perform descaling and flushing on the pipeline to be flushed.

7. A system for flushing based on the adhesion condition of the inner wall of a pipe, characterized in that, The system includes: a data acquisition module, a calculation module, and a comparison module; The data acquisition module is configured to acquire pressure characteristic signals, wherein the pressure characteristic signals are calculated based on a first pressure signal and a second pressure signal, the first pressure signal is acquired based on a first pressure gauge, the second pressure signal is acquired based on a second pressure gauge, and the first pressure gauge, the first solenoid valve, the pipe to be flushed, the second solenoid valve, and the second pressure gauge are connected sequentially along the flow direction of the sprayed coating. The calculation module is configured to: perform principal component transformation on the pressure feature signal to obtain a deviation value; the step of performing principal component transformation on the pressure feature signal to obtain a deviation value includes: constructing a covariance matrix based on the pressure feature signal, wherein the covariance matrix is: Where n is the number of pressure feature vectors collected, and E[X] is the expected value of the collected feature vectors; the covariance matrix is ​​solved to obtain multiple non-negative eigenvalues ​​and multiple eigenvectors, and the eigenvectors correspond to the non-negative eigenvalues; the multiple non-negative eigenvalues ​​and multiple eigenvectors are calculated according to the cumulative variance contribution rate method to obtain the principal component values ​​and the number of principal components; the deviation value is obtained according to the principal component values ​​and the number of principal components. The comparison module is configured to: compare the deviation value with the critical value of solution wall adhesion to obtain a comparison result; and perform descaling flushing on the pipeline to be flushed based on the comparison result.

8. An electronic device, comprising: The memory and processor are characterized in that the processor executes a computer program stored in the memory to implement the steps of a flushing method based on the adhesion condition of the inner wall of a pipe as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of a flushing method based on the adhesion condition of the inner wall of a pipe as described in any one of claims 1-6.

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