Deformation monitoring system and method

Abstract

The application relates to a deformation monitoring system and method for a containment of a nuclear power plant, a gate being arranged in a through-piece on the containment; the deformation monitoring system comprises: a plurality of measuring modules, which are arranged at intervals along the radial direction of the through-piece; the measuring module comprises an axial measuring part and a radial measuring part, the axial measuring part is used for acquiring axial deformation information of the through-piece, and the radial measuring part is used for acquiring radial deformation information of the through-piece; and a processing terminal is configured to receive and generate information for representing deformation of the gate according to the axial deformation information and the radial deformation information. The system in the application can automatically monitor the deformation of the gate without relying on manual monitoring when the containment is subjected to a pressure test, so that data analysis and hazard judgment of the staff are facilitated.

Description

Technical Field

[0001] This application relates to the field of nuclear power plant containment measurement technology, and in particular to a deformation monitoring system and method. Background Technology

[0002] The containment structure of a nuclear power plant is a large-volume concrete structure with extremely high safety standards. As the last line of defense against the spillage of radioactive materials produced by nuclear fission, the containment structure must ensure excellent sealing and structural integrity. Penetration elements are core components of the containment structure boundary, primarily responsible for the passage of large equipment and personnel, the transport of internal and external fluid media, and the installation of control and communication cables.

[0003] As a critical structure ensuring the safety of nuclear power production, the containment vessel requires an overall pressure test after construction and commissioning to verify its safety performance and provide assurance for production safety. One important task is to monitor the deformation of equipment or personnel gates inside the penetration components. Previously, gate monitoring involved manual measurement, data collection, and processing by staff during testing, which was not only extremely labor-intensive but also lacked timeliness, making it difficult to quickly detect potential hazardous developments within the containment vessel. Summary of the Invention

[0004] Therefore, it is necessary to provide a deformation monitoring system and method to address the aforementioned technical problems, so as to monitor the deformation of gates on the containment vessel more efficiently and accurately.

[0005] In a first aspect, this application provides a deformation monitoring system for a nuclear power plant containment structure, wherein a gate is provided within a penetration member of the containment structure; the deformation monitoring system includes:

[0006] Multiple measurement modules are arranged at radial intervals along the penetrating member; each measurement module includes axial measuring elements and radial measuring elements. The axial measuring elements are used to acquire axial deformation information of the penetrating member, and the radial measuring elements are used to acquire radial deformation information of the penetrating member.

[0007] The processing terminal is configured to receive and generate information characterizing the gate deformation based on axial deformation information and radial deformation information.

[0008] In one embodiment, the processing terminal is specifically configured to output, based on the axial deformation information and the radial deformation information, the regularity information of the axial deformation of the penetrating member changing over time and the regularity information of the radial deformation of the penetrating member changing over time, and to use the regularity information as the deformation information of the gate.

[0009] In one embodiment, the processing terminal is specifically configured to input axial deformation information and radial deformation information into a preset three-dimensional model, and to visualize the deformation of the gate through the preset three-dimensional model; wherein, the preset three-dimensional model is a three-dimensional digital model including the gate, the penetrating member and the containment, and the spatial positional relationship and mechanical coupling relationship between the gate, the penetrating member and the containment are preset in the three-dimensional digital model.

[0010] In one embodiment, the measurement module further includes: a first temperature detection element for detecting the temperature of the axial measuring element; and a second temperature detection element for detecting the temperature of the radial measuring element; wherein the processing terminal is further configured to receive and correct the axial deformation information based on the temperature detected by the first temperature detection element, and output information on the law of change of the axial deformation of the penetrating element over time based on the corrected axial deformation information; and to receive and correct the radial deformation information based on the temperature detected by the second temperature detection element, and output information on the law of change of the radial deformation of the penetrating element over time based on the corrected radial deformation information.

[0011] In one embodiment, an axial measuring element is disposed within a through-hole and has a retractable first detection end; the retraction direction of the first detection end of the axial measuring element is parallel to the axial direction of the through-hole; the measuring module further includes: a mounting element for connecting to a containment housing, the mounting element having a mounting end for extending into the through-hole, on which the axial measuring element is mounted; and a limiting element disposed within the through-hole and located on the retraction path of the first detection end of the axial measuring element.

[0012] In one embodiment, the limiting member includes: a mounting portion disposed on the inner wall of the through member, the mounting portion having a first end and a second end disposed opposite to each other; and a limiting portion located on the extension path of the first detection end of the axial measuring member; the limiting portion having a third end and a fourth end disposed opposite to each other, the third end being connected to the first end; wherein the direction in which the first end points to the second end and the direction in which the third end points to the fourth end are perpendicular to each other; the direction in which the first end points to the second end and the axial direction of the through member are parallel to each other.

[0013] In one embodiment, a radial measuring element is disposed on the containment and located outside the penetration; the radial measuring element has a retractable second detection end, and the penetration is located on the retraction path of the second detection end of the radial measuring element; the retraction direction of the second detection end of the radial measuring element and the radial direction of the penetration are parallel to each other.

[0014] In one embodiment, multiple measurement modules are arranged in a centrally symmetrical manner about a reference point located on the central axis of the through-hole; and / or multiple measurement modules are arranged at equal intervals along the radial direction of the through-hole.

[0015] In one embodiment, the deformation monitoring system further includes a wireless communication module corresponding to each of the multiple measurement modules; the wireless communication module is communicatively connected to the corresponding measurement module and the processing terminal.

[0016] Secondly, this application also provides a deformation monitoring method for a nuclear power plant containment structure, wherein a gate is provided within a penetration member on the containment structure; the deformation monitoring method includes:

[0017] Multiple measurement modules are provided; the multiple measurement modules are arranged at radial intervals along the through-piece, and the measurement modules include axial measurement components and radial measurement components;

[0018] The axial deformation information of the penetrating part is obtained by using an axial measuring device, and the radial deformation information of the penetrating part is obtained by using a radial measuring device.

[0019] Information is generated to characterize the gate deformation based on axial and radial deformation information.

[0020] In one embodiment, information characterizing the gate deformation is generated based on axial deformation information and radial deformation information, including:

[0021] Based on the axial deformation information and radial deformation information, the law information of the axial deformation of the penetrating member changing with time and the law information of the radial deformation of the penetrating member changing with time are output, and the law information is used as the deformation information of the gate.

[0022] In one embodiment, information characterizing the gate deformation is generated based on axial deformation information and radial deformation information, including:

[0023] Axial and radial deformation information is input into a preset three-dimensional model, and the deformation of the gate is visualized through the preset three-dimensional model. The preset three-dimensional model is a three-dimensional digital model including the gate, the penetrating component, and the containment. The spatial positional relationship and mechanical coupling relationship between the gate, the penetrating component, and the containment are preset in the three-dimensional digital model.

[0024] In one embodiment, the measurement module further includes a first temperature sensor and a second temperature sensor; the deformation monitoring method further includes:

[0025] The temperature of the axial measuring component is measured by a first temperature sensor; the temperature of the radial measuring component is measured by a second temperature sensor; accordingly, information characterizing the gate deformation is generated based on the axial deformation information and the radial deformation information, including: correcting the axial deformation information based on the temperature detected by the first temperature sensor, and outputting the law information of the axial deformation of the penetrating component changing with time based on the corrected axial deformation information; correcting the radial deformation information based on the temperature detected by the second temperature sensor, and outputting the law information of the radial deformation of the penetrating component changing with time based on the corrected radial deformation information.

[0026] In one embodiment, the axial deformation information is corrected based on the temperature detected by the first temperature sensor, including:

[0027] Based on the temperature detected by the first temperature sensor, the temperature deformation of the axial measuring component caused by temperature is determined; based on the temperature deformation of the axial measuring component, the axial deformation information obtained by the axial measuring component is corrected.

[0028] In one embodiment, the radial deformation information is corrected based on the temperature detected by the second temperature sensor, including:

[0029] Based on the temperature detected by the second temperature sensor, the temperature deformation of the radial measuring component caused by temperature is determined; based on the temperature deformation of the radial measuring component, the radial deformation information obtained by the radial measuring component is corrected.

[0030] In the aforementioned deformation monitoring system and method, the deformation monitoring system includes at least multiple measurement modules and a processing terminal. Each measurement module includes at least axial and radial measuring components. By arranging these multiple measurement modules radially spaced along the penetrating member, axial deformation information of the penetrating member can be obtained using the axial measuring components, and radial deformation information can be obtained using the radial measuring components. The processing terminal can then receive and generate information characterizing the gate deformation based on the axial and radial deformation information. In this process, since the measurement modules include at least axial and radial measuring components, the deformation of the penetrating member can be monitored axially and radially during the pressure test of the containment vessel. This eliminates the need for manual monitoring, improving work efficiency and achieving automatic and efficient monitoring of the penetrating member's deformation. Because the penetrating member and the gate are rigidly connected, gate deformation information can be generated by monitoring the deformation information of the penetrating member, thus enabling more convenient and efficient monitoring of the gate's deformation. Therefore, in this embodiment of the application, by using a measurement module to monitor the deformation of the penetrating member and using the deformation information of the penetrating member to generate gate deformation information, the deformation of the gate on the containment vessel can be monitored more efficiently, conveniently and accurately. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a side cross-sectional structural diagram of the deformation monitoring system and the mounting shell, penetrating member, and gate in some embodiments of this application;

[0033] Figure 2 This is a partial cross-sectional structural diagram showing the cooperation of the axial measuring element, the containment, and the penetrating element in some embodiments of this application;

[0034] Figure 3 This is a schematic diagram of the mounting structure of the mounting components and the wireless communication module in some embodiments of this application;

[0035] Figure 4 This is a schematic diagram showing the positions of the limiting member and the axial measuring member in some embodiments of this application;

[0036] Figure 5 This is a partial cross-sectional structural diagram showing the cooperation of the axial measuring element, the containment, and the penetrating element in some other embodiments of this application;

[0037] Figure 6 This is a partial cross-sectional structural diagram showing the cooperation of the radial measuring element, containment, and penetration element in some embodiments of this application;

[0038] Figure 7 This is a front cross-sectional view of the deformation monitoring system in some embodiments of this application;

[0039] Figure 8 This is a flowchart illustrating the deformation monitoring method in some embodiments of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] Deformation monitoring system 100;

[0042] Measurement module 110, axial measuring component 111, first main body 1111, first rod core 1112, first detection end J1, radial measuring component 112, second main body 1121, second rod core 1122, second detection end J2, first temperature detection component 113, second temperature detection component 114, mounting component 115, first connecting part 1151, second connecting part 1152, third connecting part 1153, fourth connecting part 1154, mounting end Z, limiting component 116, mounting part 1161, first end e1, second end e2, limiting part 1162, third end e3, fourth end e4, reference point P;

[0043] Processing terminal 120;

[0044] Wireless communication module 130;

[0045] Wireless repeater module 140;

[0046] Axial direction F;

[0047] 210 containment structure, 220 penetrating component, 230 gate. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other.

[0049] In the description of this application, it should be understood that, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] According to some embodiments of this application, please refer to Figure 1 , Figure 1 This is a side cross-sectional view of the deformation monitoring system 100 in some embodiments of this application, showing its cooperation with the containment vessel 210, the penetration 220, and the gate 230. This application provides a deformation monitoring system 100 for use within the containment vessel 210 of a nuclear power plant. The penetration 220 on the containment vessel 210 contains a gate 230. The deformation monitoring system 100 includes multiple measurement modules 110 and a processing terminal 120.

[0054] The containment vessel 210 is a sealed structure in a nuclear power plant used to contain radioactive materials such as the reactor coolant system. The reactor is located inside the containment vessel 210, and the outside is air; the containment vessel 210 is sealed to separate the reactor from the air. For example, the containment vessel 210 is primarily composed of concrete.

[0055] The penetration 220 passes through the wall or dome of the containment 210. The penetration 220 is a component used to connect various systems and equipment inside and outside the containment 210 or to allow personnel access. The penetration 220 is a hollow component with a central axis. For example, the penetration 220 can be a steel sleeve. That is, the axial direction of the penetration 220 is parallel to the extension direction of its central axis, and the radial direction of the penetration 220 is perpendicular to its axial direction.

[0056] The gate 230 is disposed within the through-hole 220 and is connected to the inner wall of the through-hole 220 by welding to seal the through-hole 220, thereby sealing the containment 210. For example, the through-hole 220 and the gate 230 can be made of steel.

[0057] The measurement module 110 is a component used to measure the axial deformation and radial deformation information of the gate 230. The plurality of measurement modules 110 are arranged radially at intervals along the through-piece 220. Each measurement module 110 includes an axial measuring element 111 and a radial measuring element 112. The axial measuring element 111 is used to acquire the axial deformation information of the through-piece 220, and the radial measuring element 112 is used to acquire the radial deformation information of the through-piece 220.

[0058] The axial measuring element 111 measures the axial deformation of the penetrating member 220 relative to the containment vessel 210, and the radial measuring element 112 measures the radial deformation of the penetrating member 220 relative to the containment vessel 210. It can be understood that the measured axial deformation information reflects the inward / outward displacement of the penetrating member 220 relative to the containment vessel 210 when the internal pressure changes. The measured radial deformation information reflects the overall deflection of the penetrating member 220 relative to the containment vessel 210 when the internal pressure changes. For example, the axial measuring element 111 and the radial measuring element 112 can be SDM20T magnetostrictive displacement sensors.

[0059] The processing terminal 120 is a component used to process the measured axial deformation information and radial deformation information and output the deformation results. The processing terminal 120 is configured to receive and, based on the axial deformation information and radial deformation information, generate regular information characterizing the deformation of the gate 230. For example, the processing terminal 120 can be a computer, a server, or other terminal with processing capabilities. No specific limitations are imposed here.

[0060] The communication connection between the processing terminal 120 and the axial measuring element 111 and the radial measuring element 112 can be wireless or wired. For example, in this embodiment, the communication connection between the processing terminal 120 and the axial measuring element 111 and the radial measuring element 112 is wireless.

[0061] Due to the limited internal space of the penetrating member 220, monitoring the gate 230 located within it would not only make the installation and arrangement of related monitoring equipment difficult, but also restrict the operating space. Furthermore, laying wired transmission lines would be challenging and prone to damage, and wireless transmission would suffer severe signal attenuation within the penetrating member 220 environment, potentially leading to data loss. This would hinder efficient and accurate monitoring of the gate 230's deformation. The inventors of this application have discovered that since the main body of the containment vessel 210 is made of concrete, while the gate 230 and penetrating member 220 are typically made of steel, the stiffness of steel is far greater than that of concrete. Therefore, the stiffness of the penetrating member 220 and gate 230 is significantly greater than that of the containment vessel 210. Consequently, during the pressure test, when the internal pressure of the containment vessel 210 increases, the less stiff containment vessel 210 will experience relatively larger deformation. In contrast, the more stiff penetrating member 220 will deform much less. This difference in stiffness will cause the penetrating member 220 to experience relative axial and radial displacement relative to the containment vessel 210. Because the gate 230 is fixedly connected to the through member 220, the gate 230 and the through member 220 form a relatively rigid integral structure, and the gate 230 will follow the through member 220 to produce axial and radial displacements. That is to say, the movement of the through member 220 relative to the containment 210 will directly cause the gate 230 to produce the same relative movement. Therefore, by monitoring the axial and radial displacements of the through member 220 relative to the containment 210, the axial and radial deformations produced by the gate 230 can be directly and equivalently reflected.

[0062] Therefore, by arranging the multiple measuring modules 110 radially spaced along the penetrating member 220, axial deformation information of the penetrating member 220 can be obtained using the axial measuring element 111 and radial deformation information using the radial measuring element 112. The processing terminal 120 can then receive and generate information characterizing the deformation of the gate 230 based on the axial and radial deformation information. In this process, since the measuring module 110 includes at least axial measuring element 111 and radial measuring element 112, the deformation information of the penetrating member 220 can be monitored axially and radially during the pressure test of the containment vessel 210. This eliminates the need for manual monitoring, improving work efficiency and achieving automatic and efficient monitoring of the deformation of the penetrating member 220. Because the penetrating member 220 and the gate 230 are rigidly connected, the deformation information of the gate 230 can be generated by monitoring the deformation information of the penetrating member 220, thus enabling more convenient and efficient monitoring of the gate 230's deformation. Therefore, in this embodiment of the application, by using the measurement module 110 to monitor the deformation information of the penetrating member 220 and using the deformation information of the penetrating member 220 to generate the deformation information of the gate 230, the deformation of the gate 230 on the containment 210 can be monitored more efficiently, conveniently and accurately.

[0063] Based on some embodiments of this application, please continue to refer to Figure 1 The processing terminal 120 is specifically configured to output, based on the axial deformation information and the radial deformation information of the penetrating member 220, the regularity information of the axial deformation information and the regularity information of the radial deformation information of the penetrating member 220 over time, and use the regularity information as the deformation information of the gate 230.

[0064] For example, the output pattern information can be curves showing the changes in axial and radial deformation information of the through-piece 220 over time, or it can be data formats such as charts.

[0065] For example, the processing terminal 120 is specifically configured to output data in the form of curves, text reports or charts showing the change of axial deformation information of the penetrating member 220 over time, and data in the form of curves, text reports or icons showing the change of radial deformation information of the penetrating member 220 over time, based on the axial deformation information and radial deformation information; and to use the output data in the form of curves, text reports or icons as data of the gate 230 during the pressure test.

[0066] In this embodiment, by processing the regular information output by the terminal 120, the collected deformation information can be output as a curve of axial deformation information and radial deformation information changing over time, or in the form of a text report or chart. By generating these results in different formats, the deformation of the gate 230 over time during the pressure test can be shown to the staff in detail, so that the staff can intuitively understand the deformation of the gate 230 based on the output results.

[0067] Based on some embodiments of this application, please continue to refer to Figure 1 The processing terminal 120 is specifically configured to input axial deformation information and radial deformation information into a preset three-dimensional model, and to visualize the deformation of the gate 230 through the preset three-dimensional model; wherein, the preset three-dimensional model is a three-dimensional digital model including the gate 230, the penetrating member 220 and the containment vessel 210, and the spatial positional relationship and mechanical coupling relationship between the gate 230, the penetrating member 220 and the containment vessel 210 are preset in the three-dimensional digital model.

[0068] The preset 3D model is a model pre-built in the software of the processing terminal 120 to demonstrate the deformation of the gate 230 to the staff. The preset 3D model includes 3D digital models of the gate 230, the penetrating component 220, and the containment vessel 210. The 3D digital model is a virtual 3D entity created by computer 3D modeling software, constructed based on geometric elements such as points, lines, and surfaces, and includes material, texture, and physical property data. In the nuclear power plant scenario, the models of the gate 230, penetrating component 220, and containment vessel 210 need to achieve part-level precision, i.e., reproducing the microstructures such as bolts and welds, to support the accuracy of deformation simulation. Spatial positional relationship refers to the geometric relative positioning and physical connection logic of the gate 230, penetrating component 220, and containment vessel 210 in the 3D model. Mechanical coupling relationship refers to the deformation transmission path caused by the stiffness difference between the gate 230, penetrating component 220, and containment vessel 210, which achieves dynamic interaction through axial displacement constraints and radial coordinated displacement.

[0069] For example, the processing terminal 120 is specifically configured to input the collected axial deformation information and radial deformation information into a preset three-dimensional model, and to display the deformation of the gate 230 in the time dimension through the preset three-dimensional model; wherein, the preset three-dimensional model is a model pre-built in the software of the processing terminal 120 for displaying the deformation of the gate 230 to the staff, and the preset three-dimensional model includes a three-dimensional digital model of the gate 230, the penetrating member 220 and the containment vessel 210, and the spatial positional relationship and mechanical coupling relationship of the gate 230, the penetrating member 220 and the containment vessel 210 are preset in the three-dimensional digital model.

[0070] In this embodiment, the established preset three-dimensional model can intuitively and visually present to the staff the axial and radial deformation of the gate 230 over time during the pressure test, so as to show the staff the deformation of the gate 230 in a more vivid and specific way.

[0071] Referring to the above embodiments, the output results are mainly used to display the deformation of the gate 230 during the pressure test. Therefore, the processing terminal 120 can be configured to output data in any form for easy viewing by staff; this application does not impose any specific limitations. Furthermore, the processing terminal 120 can receive axial deformation information and radial deformation information from the measurement module 110 in real time, and generate, based on the received axial deformation information and radial deformation information, real-time information showing the variation of the axial deformation information of the penetrating member 220 over time and the variation of the radial deformation information of the penetrating member 220 over time.

[0072] Based on some embodiments of this application, please continue to refer to Figure 1 and in conjunction with reference Figure 2 and Figure 6 , Figure 2 This is a partial cross-sectional view of the axial measuring element 111, the containment shell 210, and the penetration element 220 in some embodiments of this application. Figure 6 This is a partial cross-sectional view of the radial measuring element 112, the containment 210, and the through-hole 220 in some embodiments of this application. The measuring module 110 also includes a first temperature detection element 113 and a second temperature detection element 114. The first temperature detection element 113 is used to detect the temperature of the axial measuring element 111, and the second temperature detection element 114 is used to detect the temperature of the radial measuring element 112.

[0073] Furthermore, the processing terminal 120 is also configured to receive and correct the axial deformation information based on the temperature detected by the first temperature detector 113, and output the law information of the change of the axial deformation information of the penetrating member 220 over time based on the corrected axial deformation information; and to receive and correct the radial deformation information based on the temperature detected by the second temperature detector 114, and output the law information of the change of the radial deformation information of the penetrating member 220 over time based on the corrected radial deformation information.

[0074] For example, the first temperature sensing element 113 and the second temperature sensing element 114 can be selected from PT100 platinum resistance temperature sensors.

[0075] For example, taking the axial measuring component 111 as a magnetostrictive displacement sensor, the process of correcting the axial deformation information is as follows: At the start of the pressure test, the core temperature detected by the first temperature detection component 113 at this time is collected as the initial temperature, and the axial deformation information detected by the axial measuring component 111 at this time is collected as the initial axial deformation information; when it is necessary to correct the axial deformation information collected at a certain time n, the axial deformation information collected at time n is subtracted from the initial axial deformation information to obtain the axial deformation information at this time; the axial deformation information obtained at this time is... The temperature change information may contain errors, which are the changes in the length of the rod core in the first temperature detection element 113 caused by temperature changes. Therefore, it is necessary to obtain the rod core temperature collected by the first temperature detection element 113 at time n. Subtracting the initial temperature from the rod core temperature at time n yields the temperature change. Multiplying the temperature change by the rod core's thermal expansion coefficient gives the error deformation of the rod core due to temperature changes. Subtracting the error deformation from the axial deformation information yields the corrected axial deformation information. The process of correcting the radial deformation information is similar to that of correcting the axial deformation information. The formula for the correction process is as follows:

[0076] ;

[0077] in, It is the correction deformation information at time n. It is the deformation information measured at time n. This is the initial measurement of deformation information, where K is the coefficient of thermal expansion of the rod core. It is the temperature at time n. This refers to the initial temperature; this formula can be set and calculated on the processing terminal 120. It should be noted that when correcting for axial deformation information, the above formula... This represents the corrected axial deformation information at time n. It is the axial deformation information measured at time n. This refers to the axial deformation information measured at the initial moment. When correcting for the radial deformation information, the formula above... This represents the corrected radial deformation information at time n. It is the radial deformation information measured at time n. It is the radial deformation information measured at the initial moment.

[0078] Furthermore, in some embodiments, the processing terminal 120 may also be configured to issue a warning message if the corrected axial deformation information or the corrected radial deformation information is greater than a preset deformation. The preset deformation may be 0.5 mm, and is not specifically limited here.

[0079] In this embodiment, by correcting the detected axial and radial deformation information, and subtracting the change in the length of the measuring component caused by temperature changes from the measured deformation information, the influence of temperature changes on the length of the measuring component can be eliminated, making the measured axial and radial deformation information more accurate; and an early warning can be issued when the deformation exceeds the danger threshold, so that staff can take appropriate safety measures in a timely manner.

[0080] Based on some embodiments of this application, please continue to refer to Figure 1 and Figure 2 and in conjunction with reference Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the mounting structure of the mounting component 115 and the wireless communication module 130 in some embodiments of this application. Figure 4 This is a schematic diagram showing the positions of the limiting member 116 and the axial measuring member 111 in other embodiments of this application. The axial measuring member 111 is disposed within the through member 220 and has a retractable first detection end J1. The extension direction of the first detection end J1 of the axial measuring member 111 is parallel to the axial direction of the through member 220. The measurement module 110 also includes a mounting member 115 and a limiting member 116. The mounting member 115 is used to connect to the containment shell 210 and has a mounting end Z for extending into the through member 220, on which the axial measuring member 111 is mounted. The limiting member 116 is disposed within the through member 220 and is located on the extension path of the first detection end J1 of the axial measuring member 111.

[0081] The extension path of the first detection end J1 of the axial measuring component 111 refers to the straight line trajectory traversed by the first detection end J1 of the axial measuring component 111 during its axial extension and retraction movement. Since the limiting component 116 is located on the extension path of the first detection end J1 of the axial measuring component 111, when the first detection end J1 of the axial measuring component 111 moves to a certain position along the axial direction, it will contact the limiting component 116. At this time, the limiting component 116 will prevent the first detection end J1 of the axial measuring component 111 from continuing to move, thereby limiting the maximum extension and retraction of the first detection end J1 of the axial measuring component 111.

[0082] For example, see Figure 2An axial measuring element 111 is disposed within the through-member 220. The axial measuring element 111 includes a first main body 1111 and a first rod core 1112 cooperating with the first main body 1111. The extension direction of the first main body 1111 is parallel to the axial direction of the through-member 220, and the extension direction of the first rod core 1112 is also parallel to the axial direction of the through-member 220. The first detection end J1 of the axial measuring element 111 is the end of the first rod core 1112, as shown in the figure. The extension and retraction directions of the first detection end J1 of the axial measuring element 111 are parallel to the axial direction of the through-member 220.

[0083] For example, see Figure 3 and Figure 4 The mounting component 115 includes a first connecting portion 1151, a second connecting portion 1152, a third connecting portion 1153, and a fourth connecting portion 1154. The first connecting portion 1151 is mounted on the containment 210 parallel to the containment. One end of the second connecting portion 1152 is perpendicularly connected to the end of the first connecting portion 1151 near the penetration. One end of the third connecting portion 1153 is perpendicularly connected to the end of the second connecting portion 1152 away from the containment, and the other end crosses the penetration 220. The fourth connecting portion 1154 and the third connecting portion 1153 cross the penetration 220. One end is vertically connected and extends into the interior of the through member 220. The fourth connecting part 1154 has a mounting end Z, which is used to mount the axial measuring member 111. The limiting member 116 is disposed inside the through member 220 and contacts the first detection end J1 of the axial measuring member 111. The limiting member 116 includes a mounting part 1161 and a limiting part 1162. The mounting part 1161 is mounted on the inner wall of the through member 220. The limiting part 1162 and the mounting part 1161 are vertically connected. The limiting part 1162 contacts the first detection J1 of the first rod core 1112 of the axial measuring member 111.

[0084] The first detection end J1 is a free end that contacts the limiting member 116 but is not fixedly connected. When the internal pressure of the containment 210 increases, the pressure forces the penetrating member 220 to move relative to the containment 210. At this time, in the F direction, the limiting member 116 installed on the penetrating member 220 will compress the rod core in the axial measuring member 111 to contract towards the first main body, thereby measuring axial deformation information. When the internal pressure of the containment 210 decreases, the limiting member 116 will move in the opposite axial direction with the penetrating member 220. At this time, the pressure of the limiting member 116 on the first rod core of the axial measuring member 111 decreases, and the pressure inside the axial measuring member 111 will force the first rod core to move in the opposite axial direction.

[0085] In this embodiment, there is a connection structure between the part of the penetrating member 220 protruding from the concrete wall of the containment 210 and the containment 210. The existence of the connection structure will occupy some space, making it inconvenient to install the axial measuring member 110 on the outside of the penetrating member 220 or the measurement path will be blocked. Therefore, the axial measuring member 111 is installed on the inside of the penetrating member 220 through the mounting member 115, which can avoid the sealing structure part connecting the penetrating member 220 and the wall of the containment 210, and achieve stable installation on the inside of the penetrating member 220.

[0086] According to some embodiments of this application, please refer to Figure 1 and combined Figure 4 and Figure 5 , Figure 5 This is a partial cross-sectional view of the axial measuring element 111, the safety housing 210, and the through-hole 220 in some other embodiments of this application. The limiting element 116 includes: a mounting part 1161, which is located on the inner wall of the through-hole 220 and has a first end e1 and a second end e2 disposed opposite to each other; a limiting part 1162, which is located on the extension path of the first detection end J1 of the axial measuring element 111; and a limiting part 1152, which has a third end e3 and a fourth end e4 disposed opposite to each other, with the third end e3 connected to the first end e1; wherein the direction in which the first end e1 points to the second end e2 and the direction in which the third end e3 points to the fourth end e4 are perpendicular to each other; the direction in which the first end points to the second end e2 is parallel to the axial direction of the through-hole 220.

[0087] In this embodiment, the limiting part is installed by the mounting part 1161 and together they constitute the limiting member 116. When the penetrating member 220 deforms relative to the safety shell 210, the extension length of the rod core in the axial measuring member 111 can be changed by the movement of the limiting part in the axial direction F, so that the axial measuring member 111 can accurately measure the axial deformation information.

[0088] According to some embodiments of this application, please refer to Figure 1 and combined Figure 6 , Figure 6 This is a partial cross-sectional view of the radial measuring element 112, the containment shell 210, and the penetrating element 220 in some embodiments of this application. The radial measuring element 112 is disposed on the containment shell 210. The radial measuring element 112 includes a second main body 1121 and a second rod core 1122, and is located outside the penetrating element 220. The radial measuring element 112 has a retractable second detection end J2, and the penetrating element 220 is located on the retraction path of the second detection end J2 of the radial measuring element 112. The retraction direction of the second detection end J2 of the radial measuring element 112 is parallel to the radial direction of the penetrating element 220.

[0089] In this embodiment, by directly mounting the radial measuring element 112 on the containment 210 and bringing the second detection end J2 into contact with the outer side of the penetrating element 220, the radial deformation information of the penetrating element 220 relative to the containment 210 can be accurately measured without relying on additional mounting components.

[0090] According to some embodiments of this application, refer to Figure 1 and combined Figure 7 , Figure 7 This is a front view cross-sectional structural schematic diagram of the deformation monitoring system 100 in some embodiments of this application. Multiple measurement modules 110 are arranged in a centrally symmetrical manner about a reference point P, which is located on the central axis of the through member 220; and / or multiple measurement modules 110 are arranged at equal intervals along the radial direction of the through member 220.

[0091] For example, Figure 7 The illustration shows a schematic location for the installation of the measuring module 110, which includes an axial measuring element 111 and a radial measuring element 112. Multiple measuring modules 110 are arranged radially at intervals along the through-piece 220, and each measuring module 110 has a corresponding counterpart, with these two corresponding measuring modules 110 being centrally symmetrical. Based on this centrally symmetrical arrangement, the measuring modules 110 can be spaced at equal or varying intervals. The spacing and the angle on the circumference of each measuring module 110 are not specifically limited here.

[0092] In this embodiment, by symmetrically arranging the measurement modules 110 according to the reference point P, the deformation of the penetrating member 220 can be recorded more completely. For example, when the measurement module 110 at the upper left corner detects that the penetrating member 220 deforms to the upper left corner relative to the containment 210, since both the penetrating member 220 and the gate 230 are made of steel with greater rigidity, the penetrating member 220 deforms entirely to the upper left corner. The corresponding measurement module 110 at the lower right corner, symmetrically arranged along the reference point P, will also detect the deformation of the penetrating member 220 to the upper left corner. Any displacement deviating from the diagonal will be synchronously captured by the symmetrical points, thereby distinguishing between translation, rotation, or combined deformation. Therefore, the deformation of the penetrating member 220 can be measured more accurately and completely. In addition, by arranging multiple measurement modules 110 at equal intervals along the radial direction of the penetrating member 220, all-round, step-like monitoring of the deformation of the penetrating member 220 can be achieved. For example, when the penetrating component 220 undergoes non-uniform deformation due to internal pressure, the equally spaced measurement modules 110 can form a continuous array of monitoring points at different radial distances, capturing deformation data sequentially from the position near the central axis to the edge. Because the spacing is equal, the deformation difference between adjacent measurement modules 110 can be accurately calculated using linear interpolation, thus more completely restoring the gradient change law of the radial deformation of the penetrating component 220 (such as the increasing or decreasing trend of deformation from the center to the edge). This equally spaced arrangement avoids the omission of local deformation caused by uneven distribution of measurement points, and is particularly effective in identifying whether the penetrating component 220 has abnormal deformations such as local protrusions or depressions, ensuring a more comprehensive and accurate judgment of the overall deformation trend of the penetrating component 220.

[0093] Based on some embodiments of this application, please continue to refer to Figure 1 The deformation monitoring system 100 also includes a wireless communication module 130 corresponding to each of the multiple measurement modules 110. The multiple wireless communication modules 130 are communicatively connected to the wireless relay module 140 and the corresponding measurement module 110. The wireless relay module 140 is communicatively linked to the processing terminal 120. The axial deformation information and radial deformation information collected by the measurement module 110 are transmitted to the wireless relay module 140 through the wireless communication module 130, and then transmitted to the processing terminal 120 through the wireless relay module 140.

[0094] For example, the wireless communication module 130 can adopt a 32-bit ARM (Advanced RISC Machines) processor architecture, integrate a 24-bit high-precision AD conversion unit, and support the acquisition and quantization of multiple types of sensor signals (such as deformation information and temperature). The wireless communication module 130 can have a built-in RTC real-time clock module to provide millisecond-level timestamp synchronization and remote parameter configuration functions. The wireless communication module 130 is also equipped with a 2.4GHz ZigBee radio frequency module to realize short-range Mesh self-organizing network communication, ensuring low-power standby (standby current ≤4mA) and stable transmission (breakpoint resume success rate ≥99.5%) of data between multiple nodes. In addition, the wireless communication module 130 is equipped with a Flash storage unit, which can locally cache 10,000 sets of acquired data. Finally, the wireless communication module 130 adopts a 12V DC wide voltage power supply system (supporting 9-24V input) and an IP67 waterproof ABS engineering shell, which is suitable for industrial environments of -25℃ to 70℃.

[0095] For example, the wireless repeater module 140 uses a CR300 data acquisition unit as its core (ARM Cortex-M4 core / 144MHz main frequency); this wireless repeater module 140 supports Modbus RTU / TCP protocol conversion and 10MB of data buffering, providing a heterogeneous data fusion interface for the cloud management platform. Modbus RTU stands for Modbus Remote Terminal Unit; Modbus TCP stands for Modbus Transmission Control Protocol.

[0096] In this embodiment, the data measured by the measurement module 110 is transmitted through the wireless communication module, which can transmit the data to the processing terminal 120 in a timely manner. However, since the transmission distance of the wireless communication module 130 is limited, the data measured by the measurement module 110 is relayed through the wireless relay module and transmitted to the processing terminal 120, so that the data can be transmitted and processed accurately and in a timely manner.

[0097] According to some embodiments of this application, Figure 8 This is a flowchart illustrating a deformation monitoring method in some embodiments of this application. A deformation monitoring method is provided for a nuclear power plant containment structure, wherein a gate is provided within a penetration member of the containment structure. The deformation monitoring method includes:

[0098] Step S802: Provide multiple measurement modules; the multiple measurement modules are arranged at radial intervals along the through-piece, and the measurement modules include axial measurement components and radial measurement components.

[0099] Step S804: Obtain axial deformation information of the penetrating part through the axial measuring component, and obtain radial deformation information of the penetrating part through the radial measuring component.

[0100] Step S806: Generate information to characterize the gate deformation based on the axial deformation information and the radial deformation information.

[0101] In step S802, for example, please refer to Figure 1 , Figure 2 and Figure 6 Several days before the pressure test, multiple measuring modules 110 were arranged at different azimuth angles on the penetrating member 220 and the containment vessel 210, located on the outer side of the containment vessel 210, to measure the axial and radial deformation information of the penetrating member 220 relative to the containment vessel 210. The installation steps of the axial measuring component 111 are as follows: one end of the mounting component 115 is installed on the containment vessel 210 outside the penetrating member 220 with structural adhesive, and the other end is inserted into the penetrating member 220 and placed parallel to the penetrating member 220; the mounting part 1161 of the limiting component 116 is installed on the inner side of the penetrating member 220, and the limiting part 1162 is placed perpendicular to the penetrating member 220 and welded to the mounting component 115; the first main body 1111 of the axial measuring component 111 is installed on the end of the mounting component 115 that extends into the inner side of the penetrating member 220, and the first detection end J1 of the first rod core 1112 is in contact with the limiting part. The installation steps for the radial measuring component 112 are as follows: The second main body 1121 of the radial measuring component 112 is installed on the safety housing 210 outside the penetrating member 220 using structural adhesive, and the second detection end J2 of the second rod core 1122 is in contact with the part of the penetrating member 220 that extends out of the safety housing 210. Then, a wireless communication module 130 is installed on each measuring module 110, and a wireless relay module 140 is installed near the gate 230. The processing terminal 120 is turned on for debugging to verify whether the deformation monitoring system 100 can operate normally and whether the preset three-dimensional model can evolve according to the test data.

[0102] When multiple measurement modules 110 are arranged radially at intervals along the penetrating member 220, "different azimuth angles" specifically refers to the different angular positions of each measurement module 110 around the central axis of the penetrating member 220 within the plane containing the cross-section of the penetrating member 220. For example, if the central axis of the penetrating member 220 is taken as the origin, and a fixed direction (such as due north) outside the containment 210 is set as the 0° reference direction, then each measurement module 110 may be arranged at different angular positions such as 30°, 90°, and 150°, forming a distributed monitoring layout along the circumference.

[0103] In step S804, after the pressure test begins, the time point at which the pressure test begins is taken as the time point at which the deformation monitoring method begins to be implemented. The axial deformation information and radial deformation information corresponding to different time points in the pressure test are measured by the axial measuring component 111 and the radial measuring component 112.

[0104] In step S806, based on the axial deformation information and radial deformation information corresponding to different time points, the data of the evolution of axial deformation information and radial deformation information of each measurement module 110 over time are plotted in real time, and the data is input into a preset three-dimensional model to display the deformation state of the gate 230 in real time. In the experiment, if the axial deformation or radial deformation exceeds 0.5 mm, an early warning is immediately issued.

[0105] Furthermore, after the test, based on the axial and radial deformation information measured by each measurement module 110 during the test, tabular data showing the changes in axial and radial deformation information over time at each measurement module 110 location is generated. Then, based on this tabular data, a curve showing the deformation of the gate 230 over time, or a curve showing the deformation of the gate 230 as the pressure inside the containment vessel 210 increases or decreases during the pressure test, is generated. Based on the aforementioned tabular data, the curve showing the deformation of the gate 230 over time, and the curve showing the deformation of the gate 230 as the pressure inside the containment vessel 210 increases or decreases during the pressure test, a project report is generated using a preset project report format.

[0106] Finally, after receiving the project report, the experiment was concluded, and equipment such as the measurement module 110 was dismantled.

[0107] In the aforementioned deformation monitoring method, by arranging multiple measuring modules radially spaced along the penetrating member, axial deformation information of the penetrating member can be obtained using axial measuring components, and radial deformation information can be obtained using radial measuring components. Based on the axial and radial deformation information, information characterizing the gate deformation can be generated. In this process, since the measuring modules include at least axial and radial measuring components, the deformation of the penetrating member can be monitored axially and radially during the pressure test of the containment vessel. This eliminates the need for manual monitoring, improving work efficiency and achieving automatic and efficient monitoring of the penetrating member's deformation. Because the penetrating member and the gate are rigidly connected, the deformation information of the gate can be generated by monitoring the deformation information of the penetrating member, thus enabling more convenient and efficient monitoring of the gate's deformation. Therefore, in this embodiment, by using measuring modules to monitor the deformation of the penetrating member and using the deformation information of the penetrating member to generate gate deformation information, the deformation of the gate on the containment vessel can be monitored more efficiently, conveniently, and accurately.

[0108] According to some embodiments of this application, information for characterizing gate deformation is generated based on axial deformation information and radial deformation information, including:

[0109] Based on the axial deformation information and radial deformation information, the law information of the axial deformation of the penetrating member changing with time and the law information of the radial deformation of the penetrating member changing with time are output, and the law information is used as the deformation information of the gate.

[0110] For example, the regularity information can be textual data or graphs showing the changes in axial and radial deformation of the through-piece over time, or data in the form of charts or graphs.

[0111] For example, based on the axial deformation information and radial deformation information obtained by real-time measurement, data in the form of curves, text reports or charts showing the real-time evolution of the axial deformation of the penetrating component over time, and data in the form of curves, text reports or charts showing the evolution of the radial deformation of the penetrating component over time are output; further, based on the axial deformation and radial deformation, data in the form of curves, text reports or charts showing the evolution of the overall deformation of the gate in the penetrating component over time are generated.

[0112] In this embodiment, by outputting regularity information, the collected deformation data can be output as a curve of axial and radial deformation changing over time, or in the form of a text report or chart. By generating these results in different formats, the deformation of the gate over time during the pressure test can be shown to the staff in detail, making it convenient for the staff to intuitively understand the deformation of the gate based on the output results.

[0113] According to some embodiments of this application, information for characterizing gate deformation is generated based on axial deformation information and radial deformation information, including:

[0114] Axial and radial deformation information is input into a preset three-dimensional model, and the deformation of the gate is visualized through the preset three-dimensional model. The preset three-dimensional model is a three-dimensional digital model including the gate, the penetrating component, and the containment. The spatial positional relationship and mechanical coupling relationship between the gate, the penetrating component, and the containment are preset in the three-dimensional digital model.

[0115] For example, the collected axial deformation information and radial deformation information are input into a preset three-dimensional model. Based on the axial deformation information and radial deformation information, a video of the evolution of the preset three-dimensional model in the time dimension is generated to show the deformation that occurs in the time dimension. The preset three-dimensional model is a model that is pre-built in the software of the processing terminal to show the deformation of the gate to the staff. The preset three-dimensional model includes a three-dimensional digital model of the gate, the penetrating component and the containment. The spatial position relationship and mechanical coupling relationship of the gate, the penetrating component and the containment are preset in the three-dimensional digital model.

[0116] In this embodiment, the pre-established three-dimensional model can intuitively and visually present to the staff the axial and radial deformation of the gate over time during the pressure test, thus showing the gate deformation to the staff in a more vivid and concrete way.

[0117] According to some embodiments of this application, the measurement module further includes a first temperature detection element and a second temperature detection element; the deformation monitoring method further includes:

[0118] The temperature of the axial measuring component is measured by a first temperature sensor; the temperature of the radial measuring component is measured by a second temperature sensor; accordingly, information characterizing the gate deformation is generated based on the axial deformation information and the radial deformation information, including: correcting the axial deformation information based on the temperature detected by the first temperature sensor, and outputting the law information of the axial deformation of the penetrating component changing with time based on the corrected axial deformation information; correcting the radial deformation information based on the temperature detected by the second temperature sensor, and outputting the law information of the radial deformation of the penetrating component changing with time based on the corrected radial deformation information.

[0119] For example, the temperature of the axial measuring component is detected by a first temperature sensor; the temperature of the radial measuring component is detected by a second temperature sensor; based on the temperature detected by the first temperature sensor, the axial deformation information is subtracted from the expansion length of the first temperature sensor caused by the temperature change, resulting in a structure after correcting the axial deformation information, and the law information of the axial deformation of the through component changing with time is output based on the corrected axial deformation information; based on the temperature detected by the second temperature sensor, the radial deformation information is subtracted from the expansion length of the second temperature sensor caused by the temperature change, resulting in a result after correcting the radial deformation information, and the law information of the radial deformation of the through component changing with time is output based on the corrected radial deformation information.

[0120] In this embodiment, by correcting the detected deformation and subtracting the change in the rod core extension length caused by temperature change from the measured deformation, the influence of temperature change on the rod core extension length can be eliminated, making the measured deformation accurate.

[0121] According to some embodiments of this application, the axial deformation information is corrected based on the temperature detected by the first temperature sensor, including:

[0122] Based on the temperature detected by the first temperature sensor, the temperature deformation of the axial measuring component caused by temperature is determined; based on the temperature deformation of the axial measuring component, the axial deformation information obtained by the axial measuring component is corrected.

[0123] For example, during the pressure test, the step of correcting the axial deformation information based on the temperature detected by the first temperature sensor is the same as the aforementioned correction step, and will not be repeated here.

[0124] In this embodiment, by correcting the detected axial deformation and subtracting the change in rod core extension length caused by temperature change from the measured radial deformation, the influence of temperature change on the rod core extension length can be eliminated, making the measured axial deformation accurate.

[0125] According to some embodiments of this application, the radial deformation information is corrected based on the temperature detected by the second temperature sensor, including:

[0126] Based on the temperature detected by the second temperature sensor, the temperature deformation of the radial measuring component caused by temperature is determined; based on the temperature deformation of the radial measuring component, the radial deformation information obtained by the radial measuring component is corrected.

[0127] For example, during the pressure test, the step of correcting the axial deformation information based on the temperature detected by the first temperature sensor is the same as the aforementioned correction step, and will not be repeated here.

[0128] In this embodiment, by correcting the detected radial deformation, the change in the rod core extension length caused by temperature change is subtracted from the measured radial deformation, thus eliminating the influence of temperature change on the rod core extension length and making the measured radial deformation accurate.

[0129] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0130] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0131] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A deformation monitoring system, characterized in that, A containment structure for a nuclear power plant, wherein a gate is provided within a penetration member of the containment structure; the deformation monitoring system includes: Multiple measuring modules are arranged at radial intervals along the penetrating member; each measuring module includes an axial measuring element and a radial measuring element, the axial measuring element being used to acquire axial deformation information of the penetrating member, and the radial measuring element being used to acquire radial deformation information of the penetrating member; and The processing terminal is configured to input the axial deformation information and the radial deformation information into a preset three-dimensional model, and to visualize and simulate the deformation of the gate through the preset three-dimensional model; the deformation of the gate includes displacement, tilting and deflection; the preset three-dimensional model is a three-dimensional digital model including the gate, the penetrating member and the containment vessel, and the spatial positional relationship and mechanical coupling relationship between the gate, the penetrating member and the containment vessel are preset in the three-dimensional digital model; The processing terminal is also used to obtain the deformation of the gate at the corresponding point based on the axial and radial deformation of the containment and the penetrating member at different measuring points, and to simulate and deduce the deformation at different points on the gate through a preset three-dimensional model. The measurement module also includes: A first temperature sensing element is used to detect the temperature of the axial measuring element; and The second temperature sensing element is used to detect the temperature of the radial measuring element; The processing terminal is further configured to receive and correct the axial deformation information based on the temperature detected by the first temperature sensor, and output the law information of the axial deformation information of the penetrating member changing over time based on the corrected axial deformation information; and to receive and correct the radial deformation information based on the temperature detected by the second temperature sensor, and output the law information of the radial deformation information of the penetrating member changing over time based on the corrected radial deformation information; the formula for the correction process is as follows: ； in, It is the correction deformation information at time n. It is the deformation information measured at time n. This is the initial measurement of deformation information, where K is the coefficient of thermal expansion of the rod core. It is the temperature at time n. It is the initial temperature.

2. The deformation monitoring system according to claim 1, characterized in that, The axial measuring element is disposed within the through-hole, and the axial measuring element has a retractable first detection end; the retraction direction of the first detection end of the axial measuring element is parallel to the axial direction of the through-hole. The measurement module also includes: A mounting member for connecting the containment vessel, the mounting member having a mounting end for extending into the penetration member, the mounting end on which the axial measuring element is mounted; and A limiting member is disposed inside the penetrating member and is in contact with the first detection end.

3. The deformation monitoring system according to claim 2, characterized in that, The limiting component includes: A mounting portion is disposed on the inner wall of the through member, the mounting portion having a first end and a second end disposed opposite to each other; and A limiting part is located on the telescopic path of the first detection end of the axial measuring member; the limiting part has a third end and a fourth end disposed opposite to each other, the third end being connected to the first end; Wherein, the direction from the first end to the second end is perpendicular to the direction from the third end to the fourth end; the direction from the first end to the second end is parallel to the axis of the through member.

4. The deformation monitoring system according to claim 1, characterized in that, The radial measuring element is disposed on the containment vessel and located outside the penetration member; the radial measuring element has a retractable second detection end, and the penetration member is located on the retraction path of the second detection end of the radial measuring element; The extension and retraction direction of the second detection end of the radial measuring element is parallel to the radial direction of the through element.

5. The deformation monitoring system according to claim 1, characterized in that, The plurality of measurement modules are arranged symmetrically about a reference point, which is located on the central axis of the through-piece; and / or The plurality of measuring modules are arranged at equal intervals along the radial direction of the through member.

6. The deformation monitoring system according to claim 1, characterized in that, The deformation monitoring system also includes a wireless communication module that corresponds one-to-one with the plurality of measurement modules; The wireless communication module is communicatively connected to the corresponding measurement module and the processing terminal.

7. A deformation monitoring method, formed based on the deformation monitoring system according to any one of claims 1-6, characterized in that, A containment structure for a nuclear power plant, wherein a gate is provided within a penetration member of the containment structure; the deformation monitoring method includes: Multiple measurement modules are provided; the multiple measurement modules are arranged at radial intervals along the through member, and the measurement modules include axial measurement components and radial measurement components; The axial deformation information of the through-hole is obtained through the axial measuring device, and the radial deformation information of the through-hole is obtained through the radial measuring device. Information for characterizing gate deformation is generated based on the axial deformation information and the radial deformation information.

8. The deformation monitoring method according to claim 7, characterized in that, The step of generating information characterizing the gate deformation based on the axial deformation information and the radial deformation information includes: Based on the axial deformation information and the radial deformation information, the law information of the axial deformation of the penetrating member changing with time and the law information of the radial deformation of the penetrating member changing with time are output, and the law information is used as the deformation information of the gate.

9. The deformation monitoring method according to claim 7, characterized in that, The step of generating information characterizing the gate deformation based on the axial deformation information and the radial deformation information includes: The axial deformation information and the radial deformation information are input into a preset three-dimensional model, and the deformation of the gate is visualized and simulated through the preset three-dimensional model. The preset three-dimensional model is a three-dimensional digital model including the gate, the penetrating component, and the containment structure. The three-dimensional digital model presets the spatial positional relationship and mechanical coupling relationship between the gate, the penetrating component, and the containment structure.

10. The deformation monitoring method according to any one of claims 7-9, characterized in that, The measurement module further includes a first temperature detection element and a second temperature detection element; the deformation monitoring method further includes: The temperature of the axial measuring element is measured using the first temperature sensing element; The temperature of the radial measuring element is measured using the second temperature sensing element; Accordingly, generating information characterizing the gate deformation based on the axial deformation information and the radial deformation information includes: Based on the temperature detected by the first temperature detection element, the axial deformation information is corrected, and the law information of the axial deformation of the penetrating member changing with time is output based on the corrected axial deformation information. Based on the temperature detected by the second temperature sensor, the radial deformation information is corrected, and the radial deformation of the penetrating member over time is output based on the corrected radial deformation information.

11. The deformation monitoring method according to claim 10, characterized in that, The step of correcting the axial deformation information based on the temperature detected by the first temperature sensor includes: Based on the temperature detected by the first temperature sensor, the temperature deformation of the axial measuring element caused by temperature is determined. The axial deformation information obtained by the axial measuring component is corrected based on the temperature deformation of the axial measuring component.

12. The deformation monitoring method according to claim 10, characterized in that, The step of correcting the radial deformation information based on the temperature detected by the second temperature sensor includes: Based on the temperature detected by the second temperature sensor, the temperature deformation of the radial measuring element caused by temperature is determined. The radial deformation information obtained by the radial measuring element is corrected based on the temperature deformation of the radial measuring element.

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