Method and device for predicting sealing performance of electrical penetration assembly and storage medium

Abstract

The invention discloses a method and device for predicting the sealing performance of an electrical penetration assembly and a storage medium, and the method comprises the steps: obtaining the structure attribute information of a target electrical penetration assembly in response to a prediction signal of the sealing performance of the target electrical penetration assembly, external environment attribute information of the target electrical penetration assembly at different moments and gas attribute information of gas in a barrel of the target electrical penetration assembly at different moments are collected in real time, and the gas attribute information comprises gas temperature and gas pressure of the gas in the barrel of the target electrical penetration assembly at different moments; based on the gas temperature, judging whether the target electrical penetration assembly meets a preset condition of sealing performance monitoring or not; and if the target electrical penetration assembly meets the preset condition, predicting the sealing performance of the target electrical penetration assembly based on the structure attribute information, the external environment attribute information and the gas attribute information.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear reactor safety monitoring, and in particular to a method, a device and a storage medium for predicting the sealing performance of an electrical penetration. Background Art

[0002] The electrical penetration equipment installed on the nuclear reactor containment is used for various cables to penetrate the containment. As a part of the containment, it constitutes a barrier to prevent the leakage of radioactive materials to ensure the integrity of the pressure boundary, which plays a vital role in the safe and stable operation of the reactor. On the containment of each nuclear power plant reactor, dozens or even hundreds of electrical penetration equipment are usually installed by welding. Based on this, in order to effectively prevent the leakage of radioactive materials, it is necessary to test the sealing performance of the electrical penetration equipment.

[0003] At present, the pressure of electrical penetrations is usually recorded manually at regular intervals, and the sealing performance of electrical penetrations is manually determined based on the pressure. However, this method of determining the sealing performance is greatly affected by human subjective factors, which may lead to errors in the determination of the sealing performance. At the same time, the manual recording method will lead to low efficiency in determining the sealing performance, and the regular recording method will cause the sealing performance monitoring of the electrical penetrations to be out of control during the idle period, which may cause the risk of radioactive gas leakage in the containment. Summary of the invention

[0004] The present invention provides a method, device and storage medium for predicting the sealing performance of electrical penetrations, which can improve the prediction accuracy and determination efficiency of the sealing performance of electrical penetrations, and can also realize real-time monitoring of the sealing performance of electrical penetrations.

[0005] According to a first aspect of the present invention, there is provided a method for predicting the sealing performance of an electrical penetration, comprising:

[0006] In response to the prediction signal of the sealing performance of the target electrical penetration, the structural property information of the target electrical penetration is obtained, and the external environment property information of the target electrical penetration at different times and the gas property information of the gas inside the cylinder of the target electrical penetration at different times are collected in real time, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times;

[0007] Based on the gas temperature, determining whether the target electrical penetration meets the preset conditions for sealing performance monitoring;

[0008] If the target electrical penetration meets the preset condition, the sealing performance of the target electrical penetration is predicted based on the structural property information, the external environment property information, and the gas property information.

[0009] Optionally, judging whether the target electrical penetration meets a preset condition for sealing performance monitoring based on the gas temperature includes:

[0010] Based on the gas temperature, determining a target time at each time when the gas temperature of the gas inside the cylinder of the target electrical penetration is greater than a preset temperature threshold;

[0011] Based on the target time, determining a duration that the gas temperature is greater than a preset temperature threshold;

[0012] If the duration is greater than or equal to a preset time threshold, it is determined that the target electrical penetration does not meet the preset conditions for sealing performance monitoring. When the target electrical penetration does not meet the preset conditions, a temperature alarm message is generated and the temperature alarm message is sent to an operation and maintenance personnel terminal so that the operation and maintenance personnel at the operation and maintenance personnel terminal can perform maintenance on the target electrical penetration based on the temperature alarm message.

[0013] If the duration is less than the preset time threshold, it is determined that the target electrical penetration meets the preset conditions for sealing performance monitoring.

[0014] Optionally, the structural attribute information includes the internal volume of the cylinder of the target electrical penetration component, and the external environment attribute information includes the atmospheric pressure outside the target electrical penetration component at different times, and the different times include adjacent first and second times;

[0015] The predicting of the sealing performance of the target electrical penetration component based on the structural property information, the external environment property information, and the gas property information includes:

[0016] Adding the gas pressure at the first moment to the atmospheric pressure at the first moment to obtain a first pressure sum, and adding the gas temperature at the second moment to the atmospheric pressure at the second moment to obtain a second pressure sum;

[0017] Dividing the gas temperature at the first moment by the gas temperature at the second moment to obtain a temperature variation coefficient;

[0018] multiplying the temperature variation coefficient by the second pressure sum to obtain a performance evaluation pressure of the sealing performance of the target electrical penetration;

[0019] Subtracting the first pressure from the performance evaluation pressure to obtain an evaluation pressure difference, and multiplying the evaluation pressure difference by the internal volume of the cylinder to obtain an energy density value inside the cylinder of the target electrical penetration;

[0020] Determine a time difference between the first moment and the second moment, and divide the energy density value by the time difference to obtain a performance index parameter of the sealing performance of the target electrical penetration;

[0021] Based on the performance index parameter, predicting the sealing performance of the target electrical penetration component;

[0022] After predicting the performance index parameter of the sealing performance of the target electrical penetration, the method further includes:

[0023] If the performance indicator parameter is greater than the preset parameter threshold, sealing performance warning information is generated and sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel at the operation and maintenance personnel terminal can inspect the target electrical penetration component based on the sealing performance warning information.

[0024] Optionally, the predicting the sealing performance of the target electrical penetration component based on the structural property information, the external environment property information, and the gas property information includes:

[0025] Determine a structural feature vector corresponding to the structural attribute information, an environmental feature vector corresponding to the external environmental attribute information, and a gas feature vector determined by the gas attribute information;

[0026] Cross-processing the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross feature vector;

[0027] The sealing cross feature vector is input into a preset sealing performance prediction model to perform sealing performance prediction, thereby obtaining the sealing performance of the target electrical penetration component.

[0028] Optionally, cross-processing the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross feature vector includes:

[0029] Performing feature-level cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a feature cross vector;

[0030] Performing element-level cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain an element cross vector;

[0031] Performing low-order cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a low-order cross vector;

[0032] The characteristic cross vector, the element cross vector, and the low-order cross vector are horizontally spliced ​​to obtain the sealed cross characteristic vector.

[0033] Optionally, the method further comprises:

[0034] Acquiring historical gas property information of the target electrical penetration piece collected by the gas property information collection device;

[0035] Based on the historical gas attribute information and the gas attribute information, determining whether the collection device fails;

[0036] If the collection device fails, fault alarm information is generated, and the fault alarm information is sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel of the operation and maintenance personnel terminal can repair the collection device based on the fault alarm information;

[0037] A maintenance success notification for the collection device sent by the operation and maintenance personnel terminal is received, and the gas property information of the gas inside the cylinder of the target electrical penetration component at different times is recollected by using the repaired collection device.

[0038] According to a second aspect of the present invention, there is provided a system for monitoring the sealing performance of electrical penetrations, comprising: a structural attribute information acquisition module, a temperature information acquisition module, a pressure information acquisition module, and a host computer;

[0039] The structural attribute information acquisition module is electrically connected to the host computer through a cable, and is used to acquire the structural attribute information of the target electrical penetration component. The structural attribute information acquisition module also includes an information remote transmission module, and the information remote transmission module is used to transmit the structural attribute information to the host computer;

[0040] The temperature information acquisition module is electrically connected to the host computer through a cable, and is used to collect the gas temperature of the gas inside the cylinder of the target electrical penetration piece at different times in real time. The temperature information acquisition module also includes a temperature remote transmission module, and the temperature remote transmission module is used to convert the gas temperature into a temperature electrical signal and transmit the temperature electrical signal to the host computer;

[0041] The pressure information acquisition module is electrically connected to the host computer through a cable, and is used to collect the gas pressure and external environmental attribute information of the gas inside the cylinder of the target electrical penetration piece at different times in real time. The pressure information acquisition module also includes a pressure remote transmission module, and the pressure remote transmission module is used to convert the gas pressure and external environmental attribute information into a pressure electrical signal with a preset threshold value, and transmit the pressure electrical signal to the host computer;

[0042] The host computer is used to determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring. If the target electrical penetration meets the preset conditions, the sealing performance of the target electrical penetration is predicted based on the structural attribute information, the external environment attribute information, and the gas attribute information.

[0043] According to a third aspect of the present invention, there is provided a device for predicting the sealing performance of an electrical penetration, comprising:

[0044] an acquisition unit, configured to acquire structural property information of the target electrical penetration in response to a prediction signal of the sealing performance of the target electrical penetration, and to collect in real time external environment property information of the target electrical penetration at different times and gas property information of the gas inside the cylinder of the target electrical penetration at different times, wherein the gas property information includes gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times;

[0045] A judgment unit, configured to judge whether the target electrical penetration meets a preset condition for sealing performance monitoring based on the gas temperature;

[0046] A prediction unit is configured to predict the sealing performance of the target electrical penetration component based on the structural attribute information, the external environment attribute information, and the gas attribute information if the target electrical penetration component meets the preset condition.

[0047] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above method for predicting the sealing performance of electrical penetrations.

[0048] According to a fifth aspect of the present invention, there is provided a computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method for predicting the sealing performance of electrical penetrations when executing the program.

[0049] According to a method, device and storage medium for predicting the sealing performance of an electrical penetration provided by the present invention, compared with the current method of manually recording the pressure of the electrical penetration at regular intervals and manually determining the sealing performance of the electrical penetration based on the pressure, the present invention collects the structural attribute information of the target electrical penetration, the external environment attribute information and the gas attribute information of the target electrical penetration at different times in real time, and judges in real time whether the target electrical penetration meets the preset conditions for monitoring the sealing performance based on the information collected in real time. Only when the target electrical penetration meets the preset conditions is the sealing performance of the target electrical penetration determined based on the structural attribute information, the external environment attribute information and the gas attribute information. Thus, by judging whether the target electrical penetration meets the preset conditions for monitoring the sealing performance, it is possible to avoid the target electrical penetration not meeting the sealing performance requirements. Under the preset conditions of performance monitoring, the computing resources wasted in predicting the sealing performance of the target electrical penetration are reduced. At the same time, the present invention can ensure the real-time monitoring of the sealing performance of the target electrical penetration by collecting the structural attribute information, external environment information and gas attribute information of the target electrical penetration in real time, thereby avoiding the risk of leakage of radioactive gas in the containment due to the out-of-control state of the sealing performance monitoring of the electrical penetration during the idle period. In addition, the present invention can improve the prediction accuracy of the sealing performance of the electrical penetration by predicting the sealing performance through comprehensive analysis of all factors affecting the sealing performance of the electrical penetration, including structural attribute information, external environment attribute information and gas attribute information. At the same time, the automatic monitoring of the sealing performance of the electrical penetration of the present invention can avoid the problems of low monitoring accuracy and low monitoring efficiency caused by manual monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0051] Figure 1 A flow chart of a method for predicting the sealing performance of an electrical penetration provided by an embodiment of the present invention is shown;

[0052] Figure 2 A schematic diagram showing the composition of a temperature information acquisition module provided by an embodiment of the present invention is shown;

[0053] Figure 3 A schematic diagram showing the composition of a pressure information acquisition module provided by an embodiment of the present invention is shown;

[0054] Figure 4 A schematic diagram showing the installation of a pressure information acquisition module and a temperature information acquisition module on an electrical penetration device provided by an embodiment of the present invention is shown;

[0055] Figure 5A schematic diagram showing the installation of another pressure information acquisition module and a temperature information acquisition module provided by an embodiment of the present invention on an electrical penetration device is shown;

[0056] Figure 6 A flow chart of another method for predicting the sealing performance of an electrical penetration provided by an embodiment of the present invention is shown;

[0057] Figure 7 A schematic diagram showing the structure of a device for predicting the sealing performance of an electrical penetration provided by an embodiment of the present invention;

[0058] Figure 8 A schematic diagram of the physical structure of a computer device provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0059] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0060] At present, the pressure of electrical penetrations is manually recorded regularly and the sealing performance of electrical penetrations is manually determined based on the pressure. This may cause the sealing performance monitoring of electrical penetrations to be out of control during idle periods, which may lead to the risk of leakage of radioactive gas in the containment.

[0061] In order to solve the above problems, an embodiment of the present invention provides a method for predicting the sealing performance of an electrical penetration. Figure 1 As shown, the method includes:

[0062] 101. In response to a prediction signal of the sealing performance of a target electrical penetration, obtain structural property information of the target electrical penetration, and collect in real time external environment property information of the target electrical penetration at different times and gas property information of the gas inside the cylinder of the target electrical penetration at different times, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times.

[0063] Among them, the electrical penetrations can be barriers installed on the reactor containment to prevent the leakage of radioactive materials; the structural attribute information includes the cylinder volume, material attribute information, structural composition information, etc. of the target electrical penetrations; the external environment attribute information includes the ambient temperature, atmospheric pressure, ambient humidity, etc. around the target electrical penetrations.

[0064] According to an embodiment of the present invention, a sealing performance monitoring system for electrical penetrations is provided, and the sealing performance monitoring system includes: a structural attribute information acquisition module, a temperature information acquisition module, a pressure information acquisition module, and a host computer; the structural attribute information acquisition module is electrically connected to the host computer via a cable, and is used to acquire the structural attribute information of the target electrical penetration, and the structural attribute information acquisition module also includes an information remote transmission module, and the information remote transmission module is used to transmit the structural attribute information to the host computer; the temperature information acquisition module is electrically connected to the host computer via a cable, and is used to collect the gas temperature of the gas inside the cylinder of the target electrical penetration at different times in real time, and the temperature information acquisition module also includes a temperature remote transmission module, and the temperature remote transmission module is used to convert the gas temperature into a temperature electric signal. signal, and transmit the temperature electrical signal to the host computer; the pressure information acquisition module is electrically connected to the host computer through a cable, and is used to collect the gas pressure and external environmental attribute information of the gas inside the cylinder of the target electrical penetration at different times in real time, and the pressure information acquisition module also includes a pressure remote transmission module, and the pressure remote transmission module is used to convert the gas pressure and external environmental attribute information into a pressure electrical signal of a preset threshold value, and transmit the pressure electrical signal to the host computer; the host computer is used to determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring, and when the target electrical penetration meets the preset conditions, the sealing performance of the target electrical penetration is predicted based on the structural attribute information, the external environmental attribute information, and the gas attribute information.

[0065] Specifically, the sealing performance monitoring system includes a structural attribute information acquisition module, a temperature information acquisition module, a pressure information acquisition module, a dedicated cable and a host computer, etc.; the structural attribute information acquisition module is used to acquire the structural attribute information of the target electrical penetration component, the temperature information acquisition module and the pressure information acquisition module are respectively used to acquire the gas temperature and gas pressure of the gas inside the cylinder of the electrical penetration component equipment, and the pressure information acquisition module is also used to acquire external environment attribute information. The structural attribute information acquisition module, the temperature information acquisition module and the pressure information acquisition module are all connected to the host computer through dedicated cables, or directly connected to the DCS (Distributed Control System) system of the entire nuclear power plant.

[0066] like Figure 2As shown, the temperature information acquisition module is composed of core wires, thermocouple probes, polyetheretherketone (PEEK) sealing modules and protective sleeves required for at least three thermocouple temperature acquisition and transmission loops, and the core wires, thermocouple probes, polyetheretherketone (PEEK) sealing modules and protective sleeves required for at least three thermocouple temperature acquisition and transmission loops are formed by a continuous balanced extrusion process; the installation interface and installation method required by the temperature information acquisition module are completely consistent with the low-voltage conductor assembly of the electrical penetration device, the outer diameter of the protective sleeve is a preset threshold, such as 25.4 mm, and is installed in the conductor assembly channel of the electrical penetration device through a metal soft ferrule; the sealing performance index of the temperature information acquisition module is not greater than the preset threshold, such as not greater than 5×10 -9 Pa·m 3 / s, the total length of the temperature information acquisition module is within a preset length range (set according to actual needs), such as 500mm to 700mm.

[0067] like Figure 3 As shown, the pressure information acquisition module is a mechanical pressure gauge with a pressure information remote transmission function. The equipment level, installation interface, pressure information pointer-type on-site display function, and internal mechanical structure of the mechanical pressure gauge can be consistent with the mechanical pressure gauge installed on the electrical penetration equipment of domestic nuclear power units in service. The difference is that the pressure information acquisition module adds a remote transmission module to realize the long-distance transmission of pressure information; the schematic diagram after the pressure information acquisition module is installed on the electrical penetration, as shown Figure 4 As shown. The mechanical pressure gauge with the function of remote transmission of pressure information can be directly used to replace the mechanical pressure gauge installed on the electrical penetration equipment of domestic nuclear power units currently in service. While the pressure information inside the cylinder of the electrical penetration equipment is displayed on-site through the pressure gauge pointer, the pressure information collected by the mechanical part of the mechanical pressure gauge with the function of remote transmission of pressure information is converted into current information of a preset threshold through the remote transmission module, such as converted into an analog current signal of 2 to 36 mA and transmitted. The mechanical pressure gauge with the function of remote transmission of pressure information requires three interfaces of at least 1.2 to 2.0 mm to work normally. 2Signal and power supply cables, one of which is used to provide 12~36V power supply, one is used to transmit 2~36mA analog current signal, and one is ground wire. The special cable integrates the signal output lines of the structural attribute information acquisition module, the temperature information acquisition module and the pressure information acquisition module to form a multi-core special cable. The host computer includes an industrial computer, a display unit and an algorithm program to realize the functions of processing, display and early warning of temperature and pressure data. At the same time, the host computer can connect and communicate with the DCS system of the nuclear power plant. The display unit can display the real-time trend value / screen, historical trend value / screen, sealing performance index trend screen, real-time alarm window screen, etc. of the pressure inside the cylinder of each electrical penetration equipment on the reactor containment. Figure 5 The schematic diagram shows the installation of another temperature information acquisition module and a pressure information acquisition module on an electrical penetration device.

[0068] The early warning function means that the sealing performance monitoring system will monitor the internal pressure and temperature values ​​and sealing performance indicators of each electrical penetration device in real time. When the temperature value exceeds the preset time threshold, such as 3 to 6 hours, it will issue a temperature warning signal; when the sealing performance indicator exceeds the preset time threshold, such as 3 to 6 hours, it will issue a temperature warning signal; - 3 Pa·m 3 / s later, a sealing performance warning signal will be issued. The sealing performance monitoring system also includes a real-time alarm window screen, which includes elements such as alarm date and time, alarm variable name, alarm variable description, alarm value / old value, recovery value / new value, limit value, event type, etc., forming an alarm event information and a historical alarm list, which will be included in the operation and maintenance report log automatically generated by the system. Preferably, according to the actual needs of the nuclear power plant, when the host computer solution is not adopted, the temperature and pressure signals transmitted by the dedicated cable can be directly connected to the DCS system of the entire nuclear power plant. At this time, the algorithm program can also be installed in the DCS system, so as to realize the online monitoring and early warning of the sealing performance of electrical penetration equipment on the DCS system platform of the entire nuclear power plant. Preferably, the algorithm program can realize the fault diagnosis and early warning of the mechanical pressure acquisition part of the mechanical pressure gauge with pressure information remote transmission function based on the received historical pressure data and the neural network algorithm model implanted in advance.

[0069] In summary, the embodiment of the present invention adopts a mechanical pressure gauge with a remote transmission function of pressure information as a pressure information collection module, and its equipment level, installation interface, pressure information pointer-type on-site display function, internal mechanical structure, etc. are completely consistent with the mechanical pressure gauge installed on the electrical penetration equipment of the domestic nuclear power units in service, which is convenient for the batch transformation of the intelligent operation and maintenance upgrade of the electrical penetration equipment of the current nuclear power units, and can be compatible with the application of the nuclear power units under construction and the next generation; in addition, the embodiment of the present invention can conveniently, efficiently and reliably realize the real-time monitoring and early warning of the sealing performance of each electrical penetration equipment on the containment of the nuclear power unit, avoid manual inspection and maintenance, automatically generate operation and maintenance report logs, effectively reduce the operation and maintenance costs of nuclear power plants and nuclear facilities, and the occupational health risks of operation and maintenance personnel, and timely warn, discover and eliminate potential safety hazards; in addition, based on historical operation and maintenance data and proprietary algorithms, it is possible to realize the fault diagnosis and early warning of the mechanical pressure collection part of the mechanical pressure gauge with a remote transmission function of pressure information, ensure that the failure of the pressure gauge can be timely detected and remedial measures can be taken, and escort the sealing performance of the reactor containment.

[0070] 102. Based on the gas temperature, determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring.

[0071] For the embodiment of the present invention, since the sealing performance of the target electrical penetration may be temporarily changed due to thermal expansion in a high temperature environment, it is futile to monitor the sealing performance at this time. Therefore, the temperature needs to be corrected at this time. After the temperature returns to normal, the sealing performance can be accurately evaluated by monitoring it. Based on this, before monitoring the sealing performance of the target electrical penetration, it is first necessary to determine whether the gas temperature of the gas inside the cylinder of the target electrical penetration is greater than a preset temperature threshold (a value set according to actual needs). If it is greater than the preset temperature threshold, it is determined that the target electrical penetration does not meet the preset conditions for sealing performance monitoring. At this time, it is necessary to cool the gas inside the cylinder of the target electrical penetration. After the temperature drops to less than the preset temperature threshold, the sealing performance of the target electrical penetration is predicted. Therefore, by predicting the sealing performance of the target electrical penetration only when it meets the conditions for sealing performance monitoring, it is possible to avoid wasting computing resources for monitoring its sealing performance when it does not meet the conditions for sealing performance monitoring.

[0072] 103. If the target electrical penetration component meets the preset conditions, the sealing performance of the target electrical penetration component is predicted based on the structural property information, the external environment property information, and the gas property information.

[0073] The structural attribute information includes the internal volume of the cylinder of the target electrical penetration component, and the external environment attribute information includes the atmospheric pressure outside the target electrical penetration component at different times, where the different times include adjacent first and second times.

[0074] For the embodiment of the present invention, when the target electrical penetration component meets the preset conditions for sealing performance monitoring, it is necessary to monitor its sealing performance in real time. Based on this, step 203 specifically includes: adding the gas pressure at the first moment to the atmospheric pressure at the first moment to obtain a first pressure sum, and adding the gas temperature at the second moment to the atmospheric pressure at the second moment to obtain a second pressure sum; dividing the gas temperature at the first moment by the gas temperature at the second moment to obtain a temperature variation coefficient; multiplying the temperature variation coefficient by the second pressure sum to obtain a performance evaluation pressure of the sealing performance of the target electrical penetration component; subtracting the first pressure sum from the performance evaluation pressure to obtain an evaluation pressure difference, and multiplying the evaluation pressure difference by the internal volume of the cylinder to obtain an energy density value inside the cylinder of the target electrical penetration component; determining the time difference between the first moment and the second moment, and dividing the energy density value by the time difference to obtain a performance index parameter of the sealing performance of the target electrical penetration component; and determining the sealing performance of the target electrical penetration component based on the performance index parameter.

[0075] Specifically, the sealing performance of the target electrical penetration can be calculated by the following formula:

[0076]

[0077] Where Q is the performance index parameter of the sealing performance of the target electrical penetration, P 1 t 1 The gas pressure inside the cylinder of the target electrical penetration at the time (first moment), A 1 t 1 Atmospheric pressure of the environment surrounding the target electrical penetration at the time (first moment), P 2 t 2 The gas pressure inside the cylinder of the target electrical penetration at the time (second time), A 2 t 2 Atmospheric pressure of the environment surrounding the target electrical penetration at time (second time), T 1 t 1 The gas temperature inside the target electrical penetration tube at the first moment, T 2 t 2 The gas temperature inside the cylinder of the target electrical penetration component at the second moment, V is the internal volume of the cylinder of the target electrical penetration component, Δt is the time difference between the first moment and the second moment, Δt=t 2 -t 1. Thus, according to the above formula, the performance index parameter of the sealing performance of the target electrical penetration can be calculated, and then according to the performance index parameter, the parameter interval to which the performance index parameter belongs is found in the preset performance level evaluation table, and the performance level corresponding to the parameter interval is determined, and the performance level is determined as the sealing performance of the target electrical penetration. For example, if the performance index parameter is 0.5, the corresponding parameter interval in the preset performance level evaluation table is 0.1-0.6, and the performance level corresponding to the parameter interval 0.1-0.6 in the preset performance level evaluation table is intermediate, then the sealing performance of the target electrical penetration is finally determined to be intermediate.

[0078] Further, after determining the performance index parameter of the target electrical penetration component, if the performance index parameter is greater than a preset parameter threshold (set according to actual needs), or the performance index parameter is greater than the preset parameter threshold for a preset continuous time, such as when the sealing performance index parameter is greater than 1×10 -3 Pa·m 3 / s, then the sealing performance warning information is generated at this time, and the sealing performance warning information is sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel of the operation and maintenance personnel terminal can inspect the target electrical penetration parts based on the sealing performance warning information. The present invention realizes the real-time automatic collection of information such as temperature and pressure through the sealing performance detection system, and based on the above information, the sealing performance of the electrical penetration parts is automatically monitored in real time, which can avoid the problems of low accuracy and low efficiency of determining the sealing performance caused by manual data collection and manual calculation of the sealing performance, so that the embodiment of the present invention can improve the prediction efficiency and prediction accuracy of the sealing performance of the electrical penetration parts. At the same time, the implementation of the present invention can realize the real-time prediction and monitoring of the sealing performance, which can avoid the periodic monitoring by humans, resulting in the sealing performance monitoring of the electrical penetration parts being out of control during the idle period, which may cause the risk of leakage of radioactive gas in the containment, so that the embodiment of the present invention can monitor the sealing performance of the electrical penetration parts in real time, and improve the safety of the nuclear reaction safety guests.

[0079] According to a method for predicting the sealing performance of an electrical penetration provided by the present invention, compared with the current method of manually recording the pressure of the electrical penetration at regular intervals and manually determining the sealing performance of the electrical penetration based on the pressure, the present invention collects the structural attribute information of the target electrical penetration, the external environment attribute information and the gas attribute information of the target electrical penetration at different times in real time, and judges in real time whether the target electrical penetration meets the preset conditions for sealing performance monitoring based on the real-time collected information. Only when the target electrical penetration meets the preset conditions, the sealing performance of the target electrical penetration is determined based on the structural attribute information, the external environment attribute information and the gas attribute information. Therefore, by judging whether the target electrical penetration meets the preset conditions for sealing performance monitoring, it is possible to avoid the target electrical penetration not meeting the preset conditions for sealing performance monitoring. Under the preset conditions, the computing resources wasted in predicting the sealing performance of the target electrical penetration are reduced. At the same time, the present invention can ensure the real-time monitoring of the sealing performance of the target electrical penetration by collecting the structural attribute information, external environment information and gas attribute information of the target electrical penetration in real time, thereby avoiding the risk of leakage of radioactive gas in the containment due to the out-of-control state of the sealing performance monitoring of the electrical penetration during the idle period. In addition, the present invention can improve the prediction accuracy of the sealing performance of the electrical penetration by predicting the sealing performance through comprehensive analysis of all factors affecting the sealing performance of the electrical penetration, including structural attribute information, external environment attribute information and gas attribute information. At the same time, the automatic monitoring of the sealing performance of the electrical penetration of the present invention can avoid the problems of low monitoring accuracy and low monitoring efficiency caused by manual monitoring.

[0080] Further, in order to better illustrate the process of determining the sealing performance of the electrical penetration, as a refinement and extension of the above embodiment, the embodiment of the present invention provides another method for predicting the sealing performance of the electrical penetration, such as Figure 6 As shown, the method includes:

[0081] 201. In response to a prediction signal of the sealing performance of a target electrical penetration, obtain structural property information of the target electrical penetration, and collect in real time external environment property information of the target electrical penetration at different times and gas property information of the gas inside the cylinder of the target electrical penetration at different times, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times.

[0082] Specifically, when the sealing performance of the target electrical penetration component needs to be monitored in real time, it is first necessary to obtain the structural property information of the target electrical penetration component, and to collect the external environmental property information of the target electrical penetration component at different times, and the gas pressure and gas temperature of the gas inside the cylinder of the target electrical penetration component at different times in real time.

[0083] 202. Based on the gas temperature, determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring.

[0084] For the embodiment of the present invention, after the gas temperature of the gas inside the cylinder of the target electrical penetration component at different moments is collected in real time, it is first necessary to determine whether the target electrical penetration component meets the preset conditions for sealing performance monitoring based on the gas temperature. Based on this, step 202 specifically includes: based on the gas temperature, determining the target moment at each moment when the gas temperature of the gas inside the cylinder of the target electrical penetration component is greater than the preset temperature threshold; based on the target moment, determining the duration of the gas temperature greater than the preset temperature threshold; if the duration is greater than or equal to the preset time threshold, then determining that the target electrical penetration component does not meet the preset conditions for sealing performance monitoring, and when the target electrical penetration component does not meet the preset conditions, generating temperature alarm information, and sending the temperature alarm information to the operation and maintenance personnel terminal, so that the operation and maintenance personnel of the operation and maintenance personnel terminal can perform maintenance on the target electrical penetration component based on the temperature alarm information; if the duration is less than the preset time threshold, then determining that the target electrical penetration component meets the preset conditions for sealing performance monitoring.

[0085] The preset temperature threshold and the preset time threshold are set according to actual needs. Specifically, for example, if the preset temperature threshold is 35°C and the preset time threshold is 3h, the collected t 1 ,t 2 ,t 3 ,t 4 The gas temperatures at the time are 60°C, 64°C, 69°C, and 70°C respectively. Then determine t 3 ,t 4 The time is the target time when the gas temperature is greater than the preset temperature threshold. At this time, t 4 With t 3 The difference between the two is 4 hours, that is, the duration is 4 hours, and its duration is greater than the preset time threshold. At this time, it is determined that the target electrical penetration does not meet the preset conditions for sealing performance monitoring. At this time, a temperature alarm message is generated and sent to the operation and maintenance personnel. According to the temperature alarm message, the operation and maintenance personnel need to cool down the gas inside the cylinder of the target electrical penetration, and monitor its sealing performance after it drops to the preset temperature threshold. On the contrary, if t is calculated 4 With t 3The difference between the two is 2h, that is, the duration is 2h, and its duration is less than the preset time threshold. At this time, it is determined that the target electrical penetration meets the preset conditions for sealing performance monitoring, and the target electrical penetration needs to be monitored for real-time sealing performance later. In addition, if the gas temperature at different times is less than the preset temperature threshold, it can also be determined that the target electrical penetration meets the preset conditions for sealing performance monitoring. Therefore, by monitoring the sealing performance of the target electrical penetration only on the basis that it meets the preset conditions for sealing performance monitoring, computing resources can be saved.

[0086] 203. If the target electrical penetration component meets the preset conditions, determine the structural characteristic vector corresponding to the structural attribute information, the environmental characteristic vector corresponding to the external environmental attribute information, and the gas characteristic vector determined by the gas attribute information.

[0087] Specifically, word embedding and other methods may be used to respectively determine the structural feature vector corresponding to the structural attribute information, the environmental feature vector corresponding to the external environmental attribute information, and the gas feature vector determined by the gas attribute information.

[0088] 204. Perform cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross feature vector.

[0089] For the embodiment of the present invention, in order to make full use of the relationship between data, extract more implicit features, and take into account both high-order and low-order processing, so that data utilization is more sufficient, the prediction results obtained later are more accurate, and meet the needs of actual application scenarios, it is necessary to cross-process the structural feature vector, the environmental feature vector, and the gas feature vector. Based on this, step 204 specifically includes: performing feature-level cross-processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a feature cross-vector; performing element-level cross-processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain an element cross-vector; performing low-order cross-processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a low-order cross-vector; horizontally splicing the feature cross-vector, the element cross-vector, and the low-order cross-vector to obtain the sealing cross-feature vector.

[0090] Specifically, the structural attribute information, external environment attribute information, and gas attribute information are different fields. The processing method is to embed the data of the three fields into vectors of the same latitude. For example, if the structural feature vector is (a 1 ,a 2 ), the environmental feature vector is (b 1 ,b 2 ), the gas characteristic vector is (c 1 ,c 2), the specific cross processing method includes: performing feature-level crossover between different feature vectors, that is, performing Hadamard product on all elements between vectors, and then performing convolution transformation under certain weights to obtain the feature crossover vector f(w*(a 1 *b 1 *c 1 ,a 2 *b 2 *c 2 ,a 3 *b 3 *c 3 )); At the same time, all feature vector data are cross-linked at the element level, that is, each element between the vectors is Hadamard-producted, and different weight values ​​are assigned to the results of each product, and then a linear transformation is performed. The obtained element cross-vector is f(w 1 *a 1 *b 1 *c 1 ,w 2 *a 2 *b 2 *c 2 ,w 3 *a 3 *b 3 *c 3 ); In addition, all feature vectors are subjected to low-order cross processing, and then weight coefficients are assigned to the results of the cross processing, and then linear transformation is performed, and the low-order cross vector obtained is f(w 2 (a 1 ,a 2 ,b 1 ,b 2 ,c 1 ,c 2 )); finally, the above feature cross vectors, element cross vectors, and low-order cross vectors are combined together, and the preset function is used for transformation processing to obtain a sealing cross feature vector. The preset function here can be set according to the actual situation, and this embodiment does not limit this. It should be noted that the above examples are only illustrative and do not limit the embodiments of the present application. Therefore, by cross-processing the structural feature vectors, environmental feature vectors, and gas feature vectors, different features can be automatically or explicitly combined to generate new feature combinations. These combined features may contain complex nonlinear relationships between the original features, so that the model can capture more detailed and rich information in the data, that is, it can make full use of the relationship between various data, extract more implicit features, and take into account both high-order and low-order processing, so that the data can be used more fully, and the sealing performance results obtained later are more accurate, meeting the needs of actual application scenarios.

[0091] 205. Input the sealing cross feature vector into a preset sealing performance prediction model to perform sealing performance prediction, and obtain the sealing performance of the target electrical penetration component.

[0092] For the embodiment of the present invention, in order to improve the prediction accuracy of the preset sealing performance prediction model, it is first necessary to train and construct the preset sealing performance prediction model. Based on this, the method includes: constructing at least one initial prediction model; obtaining a sample data set, wherein the sample data set contains sample structural attribute information, sample external environment attribute information, sample gas attribute information, and the actual sealing performance corresponding to the sample electrical penetration; based on the number of initial prediction models, dividing the sample data set into multiple groups of training data and multiple groups of test data; using each group of training data to train the corresponding initial prediction model, and using each group of test data to test the corresponding trained initial prediction model to obtain the test result; selecting the initial prediction model whose test result meets the preset requirements from the initial prediction models after each test as the preset sealing performance prediction model. Thus, by training and constructing the preset sealing performance prediction model, the prediction accuracy of the preset sealing performance prediction model can be improved, and then the prediction accuracy of the sealing performance of the target electrical penetration can be improved.

[0093] Furthermore, after training and constructing a preset sealing performance prediction model, and cross-processing the structural feature vector, environmental feature vector, and gas feature vector to obtain a sealing cross feature vector, the sealing cross feature vector is input into the preset sealing performance prediction model, and the preset sealing performance prediction model can output the sealing performance of the target electrical penetration component.

[0094] In another embodiment of the present invention, in order to ensure the accuracy of performance monitoring, it is also necessary to perform real-time fault detection on temperature information collection devices, pressure information collection devices and other collection devices. Based on this, the method includes: obtaining historical gas property information of the target electrical penetration component collected by the gas property information collection device; judging whether the collection device has a fault based on the historical gas property information and the gas property information; if the collection device has a fault, generating fault alarm information, and sending the fault alarm information to the operation and maintenance personnel terminal, so that the operation and maintenance personnel at the operation and maintenance personnel terminal can repair the collection device based on the fault alarm information; receiving a successful maintenance notification for the collection device sent by the operation and maintenance personnel terminal, and using the repaired collection device to re-collect the gas property information of the gas inside the cylinder of the target electrical penetration component at different times.

[0095] The historical gas attribute information includes the historical gas temperature and the historical gas pressure of the gas inside the cylinder of the target electrical penetration at each historical moment.

[0096] Specifically, taking the pressure information acquisition device as an example, the historical gas pressures collected by the pressure information acquisition device for the target electrical penetration at each historical moment during normal operation are collected, and the historical gas pressures are compared with the gas pressures collected at each moment currently, and the changing rules of the historical gas pressures are compared with the changing rules of the gas pressures collected at each moment currently. If the changing rules differ greatly, it is determined that the pressure information acquisition device has a fault, and at this time, a device fault alarm message is generated and displayed. When the operation and maintenance personnel see the alarm message, they perform fault inspection on the pressure information acquisition device. In another embodiment of the present invention, the historical gas pressures at each historical moment and the gas pressures collected at each moment at the current moment can be input into a preset fault diagnosis model for fault diagnosis, and the preset fault diagnosis model can output a diagnosis result of whether the acquisition device has a fault. Therefore, by performing fault diagnosis on the acquisition device in real time, it is possible to avoid the acquisition device collecting erroneous information due to a fault, thereby avoiding the impact on the detection of the sealing performance of the electrical penetration, so that the embodiment of the present invention can further improve the prediction accuracy of the sealing performance of the electrical penetration.

[0097] According to another method for predicting the sealing performance of electrical penetrations provided by the present invention, compared with the current method of manually recording the pressure of electrical penetrations at regular intervals and manually determining the sealing performance of electrical penetrations based on the pressure, the present invention collects the structural attribute information of the target electrical penetrations, the external environment attribute information and the gas attribute information of the target electrical penetrations at different times in real time, and judges in real time whether the target electrical penetrations meet the preset conditions for monitoring the sealing performance based on the information collected in real time. Only when the target electrical penetrations meet the preset conditions is the sealing performance of the target electrical penetrations determined based on the structural attribute information, the external environment attribute information and the gas attribute information. Thus, by judging whether the target electrical penetrations meet the preset conditions for monitoring the sealing performance, it is possible to avoid the target electrical penetrations not meeting the preset conditions for monitoring the sealing performance. The present invention can reduce the computing resources wasted in predicting the sealing performance of the target electrical penetration under the preset conditions of the measurement. At the same time, the present invention can ensure the real-time monitoring of the sealing performance of the target electrical penetration by collecting the structural attribute information, external environment information and gas attribute information of the target electrical penetration in real time, so as to avoid the risk of leakage of radioactive gas in the containment due to the out-of-control state of the sealing performance monitoring of the electrical penetration during the idle period. In addition, the present invention can improve the prediction accuracy of the sealing performance of the electrical penetration by predicting the sealing performance through comprehensive analysis of all factors affecting the sealing performance of the electrical penetration, including structural attribute information, external environment attribute information and gas attribute information. At the same time, the automatic monitoring of the sealing performance of the electrical penetration of the present invention can avoid the problems of low monitoring accuracy and low monitoring efficiency caused by manual monitoring.

[0098] Further, as Figure 1 In a specific implementation, an embodiment of the present invention provides a device for predicting the sealing performance of an electrical penetration, such as Figure 7 As shown, the device includes: an acquisition unit 31, a judgment unit 32, and a prediction unit 33.

[0099] The acquisition unit 31 can be used to respond to the prediction signal of the sealing performance of the target electrical penetration, acquire the structural property information of the target electrical penetration, and collect the external environment property information of the target electrical penetration at different times and the gas property information of the gas inside the cylinder of the target electrical penetration at different times in real time, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times.

[0100] The judgment unit 32 may be used to judge whether the target electrical penetration meets the preset conditions for sealing performance monitoring based on the gas temperature.

[0101] The prediction unit 33 may be configured to predict the sealing performance of the target electrical penetration based on the structural attribute information, the external environment attribute information, and the gas attribute information if the target electrical penetration meets the preset condition.

[0102] In a specific application scenario, in order to determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring, the determination unit 32 includes a first determination module 321 and a determination module 322 .

[0103] The first determination module 321 may be used to determine, based on the gas temperature, a target moment at which the gas temperature of the gas inside the cylinder of the target electrical penetration component is greater than a preset temperature threshold at each moment.

[0104] The first determination module 321 may also be configured to determine a duration during which the gas temperature is greater than a preset temperature threshold based on the target time.

[0105] The determination module 322 can be used to determine that the target electrical penetration does not meet the preset conditions for sealing performance monitoring if the duration is greater than or equal to a preset time threshold. When the target electrical penetration does not meet the preset conditions, a temperature alarm message is generated and the temperature alarm message is sent to an operation and maintenance personnel terminal so that the operation and maintenance personnel at the operation and maintenance personnel terminal can perform maintenance on the target electrical penetration based on the temperature alarm message.

[0106] The determination module 322 may also be configured to determine that the target electrical penetration meets a preset condition for sealing performance monitoring if the duration is less than the preset time threshold.

[0107] In a specific application scenario, the structural attribute information includes the internal volume of the cylinder of the target electrical penetration component, and the external environment attribute information includes the atmospheric pressure outside the target electrical penetration component at different times, and the different times include adjacent first and second times. In order to predict the sealing performance of the target electrical penetration component, the prediction unit 33 includes an addition module 331, a division module 332, a multiplication module 333, a subtraction module 334, and a second determination module 335.

[0108] The adding module 331 can be used to add the gas pressure at the first moment to the atmospheric pressure at the first moment to obtain a first pressure sum, and to add the gas temperature at the second moment to the atmospheric pressure at the second moment to obtain a second pressure sum.

[0109] The division module 332 may be used to divide the gas temperature at the first moment by the gas temperature at the second moment to obtain a temperature variation coefficient.

[0110] The multiplication module 333 may be used to multiply the temperature variation coefficient by the second pressure sum to obtain a performance evaluation pressure of the sealing performance of the target electrical penetration.

[0111] The subtraction module 334 can be used to subtract the first pressure from the performance evaluation pressure to obtain an evaluation pressure difference, and multiply the evaluation pressure difference by the internal volume of the cylinder to obtain the energy density value inside the cylinder of the target electrical penetration.

[0112] The division module 332 may also be used to determine a time difference between the first moment and the second moment, and divide the energy density value by the time difference to obtain a performance index parameter of the sealing performance of the target electrical penetration.

[0113] The second determination module 335 may be configured to determine the sealing performance of the target electrical penetration component based on the performance indicator parameter.

[0114] The second determination module 335 can also be used to generate sealing performance warning information if the performance indicator parameter is greater than a preset parameter threshold, and send the sealing performance warning information to the operation and maintenance personnel terminal, so that the operation and maintenance personnel at the operation and maintenance personnel terminal can inspect and repair the target electrical penetration component based on the sealing performance warning information.

[0115] In a specific application scenario, in order to predict the sealing performance of the target electrical penetration component, the prediction unit 33 further includes: a cross processing module 336 and a prediction module 337 .

[0116] The second determination module 335 may also be used to determine a structural feature vector corresponding to the structural attribute information, an environmental feature vector corresponding to the external environmental attribute information, and a gas feature vector determined by the gas attribute information.

[0117] The cross-processing module 336 may be used to perform cross-processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross-feature vector.

[0118] The prediction module 337 may be used to input the sealing cross feature vector into a preset sealing performance prediction model to perform sealing performance prediction, thereby obtaining the sealing performance of the target electrical penetration component.

[0119] In a specific application scenario, in order to determine the sealing cross feature vector, the cross processing module 336 can be specifically used to perform feature-level cross processing on the structural feature vector, environmental feature vector, and gas feature vector to obtain a feature cross vector; perform element-level cross processing on the structural feature vector, environmental feature vector, and gas feature vector to obtain an element cross vector; perform low-order cross processing on the structural feature vector, environmental feature vector, and gas feature vector to obtain a low-order cross vector; and horizontally splice the feature cross vector, element cross vector, and low-order cross vector to obtain the sealing cross feature vector.

[0120] In a specific application scenario, the acquisition unit 31 may also be used to acquire the historical gas property information of the target electrical penetration component acquired by the gas property information acquisition device.

[0121] The judgment unit 32 can also be used to judge whether the collection device fails based on the historical gas attribute information and the gas attribute information; if the collection device fails, fault alarm information is generated, and the fault alarm information is sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel of the operation and maintenance personnel terminal can repair the collection device based on the fault alarm information; receive the maintenance success notification for the collection device sent by the operation and maintenance personnel terminal, and use the repaired collection device to re-collect the gas attribute information of the gas inside the cylinder of the target electrical penetration component at different times.

[0122] In a specific application scenario, an embodiment of the present invention further provides a monitoring system for the sealing performance of an electrical penetration, including: a structural property information acquisition module, a temperature information acquisition module, a pressure information acquisition module, and a host computer; including: the structural property information acquisition module is electrically connected to the host computer via a cable, and is used to acquire the structural property information of the target electrical penetration, and the structural property information acquisition module also includes an information remote transmission module, and the information remote transmission module is used to transmit the structural property information to the host computer; the temperature information acquisition module is electrically connected to the host computer via a cable, and is used to collect the gas temperature of the gas inside the cylinder of the target electrical penetration at different times in real time, and the temperature information acquisition module also includes a temperature remote transmission module, and the temperature remote transmission module is used to convert the gas temperature into temperature The pressure information acquisition module is electrically connected to the host computer through a cable, and is used for real-time acquisition of the gas pressure and external environmental attribute information of the gas inside the cylinder of the target electrical penetration component at different times. The pressure information acquisition module also includes a pressure remote transmission module, and the pressure remote transmission module is used for converting the gas pressure and external environmental attribute information into a pressure electric signal of a preset threshold value, and transmitting the pressure electric signal to the host computer; the host computer is used to determine whether the target electrical penetration component meets the preset conditions for sealing performance monitoring, and when the target electrical penetration component meets the preset conditions, the sealing performance of the target electrical penetration component is predicted based on the structural attribute information, the external environmental attribute information, and the gas attribute information.

[0123] It should be noted that for other corresponding descriptions of the functional modules involved in the device for predicting the sealing performance of an electrical penetration provided in an embodiment of the present invention, reference can be made to Figure 1 The corresponding description of the method shown will not be repeated here.

[0124] Based on the above Figure 1 The method shown, accordingly, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented: in response to a prediction signal of the sealing performance of a target electrical penetration, the structural property information of the target electrical penetration is obtained, and the external environment property information of the target electrical penetration at different times and the gas property information of the gas inside the cylinder of the target electrical penetration at different times are collected in real time, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times; based on the gas temperature, whether the target electrical penetration meets the preset conditions for sealing performance monitoring is judged; if the target electrical penetration meets the preset conditions, the sealing performance of the target electrical penetration is predicted based on the structural property information, the external environment property information and the gas property information.

[0125] Based on the above Figure 1 The method shown and Figure 7 The embodiment of the device shown in the figure, the embodiment of the present invention also provides a physical structure diagram of a computer device, such as Figure 8 As shown, the computer device includes: a processor 41, a memory 42, and a computer program stored in the memory 42 and executable on the processor, wherein the memory 42 and the processor 41 are both arranged on a bus 43, and the processor 41 implements the following steps when executing the program: in response to a prediction signal of the sealing performance of a target electrical penetration, obtaining structural property information of the target electrical penetration, and real-time acquisition of external environmental property information of the target electrical penetration at different times and gas property information of the gas inside the cylinder of the target electrical penetration at different times, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times; based on the gas temperature, judging whether the target electrical penetration meets the preset conditions for sealing performance monitoring; if the target electrical penetration meets the preset conditions, predicting the sealing performance of the target electrical penetration based on the structural property information, the external environmental property information, and the gas property information.

[0126] Through the technical solution of the present invention, the present invention collects the structural attribute information of the target electrical penetration component, the external environment attribute information and the gas attribute information of the target electrical penetration component at different times in real time, and judges in real time whether the target electrical penetration component meets the preset conditions for sealing performance monitoring based on the real-time collected information. Only when the target electrical penetration component meets the preset conditions, the sealing performance of the target electrical penetration component is determined based on the structural attribute information, the external environment attribute information and the gas attribute information. Therefore, by judging whether the target electrical penetration component meets the preset conditions for sealing performance monitoring, it is possible to avoid wasting time in predicting the sealing performance of the target electrical penetration component when the target electrical penetration component does not meet the preset conditions for sealing performance monitoring. computing resources, and at the same time, the present invention can ensure real-time monitoring of the sealing performance of the target electrical penetration components by collecting the structural attribute information, external environment information, and gas attribute information of the target electrical penetration components in real time, thereby avoiding the risk of leakage of radioactive gas in the containment due to the sealing performance monitoring of the electrical penetration components being out of control during the idle period. In addition, the present invention can improve the prediction accuracy of the sealing performance of the electrical penetration components by predicting the sealing performance through comprehensive analysis of all factors affecting the sealing performance of the electrical penetration components, including structural attribute information, external environment attribute information, and gas attribute information. At the same time, the automatic monitoring of the sealing performance of the electrical penetration components of the present invention can avoid the problems of low monitoring accuracy and low monitoring efficiency caused by manual monitoring.

[0127] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0128] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for predicting the sealing performance of an electrical penetration, characterized in that: include: In response to the prediction signal of the sealing performance of the target electrical penetration, the structural property information of the target electrical penetration is obtained, and the external environment property information of the target electrical penetration at different times and the gas property information of the gas inside the cylinder of the target electrical penetration at different times are collected in real time, wherein the gas property information includes the gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times; Based on the gas temperature, determining whether the target electrical penetration meets the preset conditions for sealing performance monitoring; If the target electrical penetration meets the preset condition, the sealing performance of the target electrical penetration is predicted based on the structural property information, the external environment property information, and the gas property information.

2. The method according to claim 1, characterized in that The step of judging whether the target electrical penetration component meets the preset condition for monitoring the sealing performance based on the gas temperature includes: Based on the gas temperature, determining a target time at each time when the gas temperature of the gas inside the cylinder of the target electrical penetration is greater than a preset temperature threshold; Based on the target time, determining a duration that the gas temperature is greater than a preset temperature threshold; If the duration is greater than or equal to a preset time threshold, it is determined that the target electrical penetration does not meet the preset conditions for sealing performance monitoring. When the target electrical penetration does not meet the preset conditions, a temperature alarm message is generated and the temperature alarm message is sent to an operation and maintenance personnel terminal so that the operation and maintenance personnel at the operation and maintenance personnel terminal can perform maintenance on the target electrical penetration based on the temperature alarm message. If the duration is less than the preset time threshold, it is determined that the target electrical penetration meets the preset conditions for sealing performance monitoring.

3. The method according to claim 1, characterized in that The structural attribute information includes the internal volume of the cylinder of the target electrical penetration component, and the external environment attribute information includes the atmospheric pressure outside the target electrical penetration component at different times, wherein the different times include adjacent first and second times; The predicting of the sealing performance of the target electrical penetration component based on the structural property information, the external environment property information, and the gas property information includes: Adding the gas pressure at the first moment to the atmospheric pressure at the first moment to obtain a first pressure sum, and adding the gas temperature at the second moment to the atmospheric pressure at the second moment to obtain a second pressure sum; Dividing the gas temperature at the first moment by the gas temperature at the second moment to obtain a temperature variation coefficient; multiplying the temperature variation coefficient by the second pressure sum to obtain a performance evaluation pressure of the sealing performance of the target electrical penetration; Subtracting the first pressure from the performance evaluation pressure to obtain an evaluation pressure difference, and multiplying the evaluation pressure difference by the internal volume of the cylinder to obtain an energy density value inside the cylinder of the target electrical penetration; Determine a time difference between the first moment and the second moment, and divide the energy density value by the time difference to obtain a performance index parameter of the sealing performance of the target electrical penetration; Determining the sealing performance of the target electrical penetration component based on the performance indicator parameter; After predicting the performance index parameter of the sealing performance of the target electrical penetration, the method further includes: If the performance indicator parameter is greater than the preset parameter threshold, sealing performance warning information is generated and sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel at the operation and maintenance personnel terminal can inspect the target electrical penetration component based on the sealing performance warning information.

4. The method according to claim 1, characterized in that: The predicting of the sealing performance of the target electrical penetration component based on the structural property information, the external environment property information, and the gas property information includes: Determine a structural feature vector corresponding to the structural attribute information, an environmental feature vector corresponding to the external environmental attribute information, and a gas feature vector determined by the gas attribute information; Cross-processing the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross feature vector; The sealing cross feature vector is input into a preset sealing performance prediction model to perform sealing performance prediction, thereby obtaining the sealing performance of the target electrical penetration component.

5. The method according to claim 4, characterized in that The cross-processing of the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a sealing cross feature vector includes: Performing feature-level cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a feature cross vector; Performing element-level cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain an element cross vector; Performing low-order cross processing on the structural feature vector, the environmental feature vector, and the gas feature vector to obtain a low-order cross vector; The characteristic cross vector, the element cross vector, and the low-order cross vector are horizontally spliced ​​to obtain the sealed cross characteristic vector.

6. The method according to claim 1, characterized in that The method further comprises: Acquiring historical gas property information of the target electrical penetration piece collected by the gas property information collection device; Based on the historical gas attribute information and the gas attribute information, determining whether the collection device fails; If the collection device fails, fault alarm information is generated, and the fault alarm information is sent to the operation and maintenance personnel terminal, so that the operation and maintenance personnel of the operation and maintenance personnel terminal can repair the collection device based on the fault alarm information; A maintenance success notification for the collection device sent by the operation and maintenance personnel terminal is received, and the gas property information of the gas inside the cylinder of the target electrical penetration component at different times is recollected by using the repaired collection device.

7. A system for monitoring the sealing performance of electrical penetrations, characterized in that: include: Structural property information acquisition module, temperature information acquisition module, pressure information acquisition module, host computer; The structural attribute information acquisition module is electrically connected to the host computer through a cable, and is used to acquire the structural attribute information of the target electrical penetration component. The structural attribute information acquisition module also includes an information remote transmission module, and the information remote transmission module is used to transmit the structural attribute information to the host computer; The temperature information acquisition module is electrically connected to the host computer through a cable, and is used to collect the gas temperature of the gas inside the cylinder of the target electrical penetration piece at different times in real time. The temperature information acquisition module also includes a temperature remote transmission module, and the temperature remote transmission module is used to convert the gas temperature into a temperature electrical signal and transmit the temperature electrical signal to the host computer; The pressure information acquisition module is electrically connected to the host computer through a cable, and is used to collect the gas pressure and external environmental attribute information of the gas inside the cylinder of the target electrical penetration piece at different times in real time. The pressure information acquisition module also includes a pressure remote transmission module, and the pressure remote transmission module is used to convert the gas pressure and external environmental attribute information into a pressure electrical signal with a preset threshold value, and transmit the pressure electrical signal to the host computer; The host computer is used to determine whether the target electrical penetration meets the preset conditions for sealing performance monitoring. If the target electrical penetration meets the preset conditions, the sealing performance of the target electrical penetration is predicted based on the structural attribute information, the external environment attribute information, and the gas attribute information.

8. A device for predicting the sealing performance of an electrical penetration, characterized in that: include: an acquisition unit, configured to acquire structural property information of the target electrical penetration in response to a prediction signal of the sealing performance of the target electrical penetration, and to collect in real time external environment property information of the target electrical penetration at different times and gas property information of the gas inside the cylinder of the target electrical penetration at different times, wherein the gas property information includes gas temperature and gas pressure of the gas inside the cylinder of the target electrical penetration at different times; A judgment unit, configured to judge whether the target electrical penetration meets a preset condition for sealing performance monitoring based on the gas temperature; A prediction unit is configured to predict the sealing performance of the target electrical penetration component based on the structural attribute information, the external environment attribute information, and the gas attribute information if the target electrical penetration component meets the preset condition.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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