CN109540205B - Monitoring method and device for nuclear power plant pipeline, monitoring equipment and storage medium - Google Patents
Monitoring method and device for nuclear power plant pipeline, monitoring equipment and storage medium Download PDFInfo
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- CN109540205B CN109540205B CN201811344413.6A CN201811344413A CN109540205B CN 109540205 B CN109540205 B CN 109540205B CN 201811344413 A CN201811344413 A CN 201811344413A CN 109540205 B CN109540205 B CN 109540205B
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a monitoring method, a monitoring device, a storage medium and a monitoring device for nuclear power plant pipelines, wherein the monitoring device acquires multipoint monitoring information corresponding to the pipelines through a plurality of fiber grating sensors arranged on the pipelines, then compares the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results, further determines whether a target comparison result meeting preset advanced alarm conditions exists in the plurality of comparison results, and if yes, outputs alarm information corresponding to the advanced alarm conditions. Because the monitoring equipment acquires the target comparison result representing the serious event from the comparison results and then can preferentially output the alarm information corresponding to the target comparison result, monitoring personnel can timely know that the alarm is the alarm of the serious event, and the monitoring strength of the nuclear power plant pipeline is improved.
Description
Technical Field
The invention relates to the field of optical transmission, in particular to a nuclear power plant pipeline monitoring method, a nuclear power plant pipeline monitoring device, monitoring equipment and a storage medium.
Background
With economic development, more and more nuclear power plants are put into use. The monitoring of the nuclear power plant pipeline is particularly important for the safe operation of the nuclear power plant. Generally, pipelines of nuclear power plants are used for transporting liquid or gaseous materials, and a change in the state of the material in the pipeline causes a change in physical quantities such as temperature, pressure, etc. in the pipeline. Therefore, monitoring of physical quantities such as temperature and pressure of the pipe becomes important.
In the conventional technology, the monitoring equipment can monitor the temperature value and the pressure value of multiple points in the pipeline through the fiber bragg grating sensor, so that the leakage condition in the pipeline can be found in time.
However, when a nuclear power plant pipeline has a serious leakage or damage event, the monitoring method in the conventional technology has less monitoring strength.
Disclosure of Invention
In view of the above, it is necessary to provide a monitoring method, an apparatus, a monitoring device and a storage medium for a nuclear power plant pipeline, which aim to solve the above technical problems.
A method of monitoring a nuclear power plant pipeline, the method comprising:
acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
determining whether a target comparison result meeting a preset advanced alarm condition exists in the comparison results;
and if so, outputting alarm information corresponding to the advanced alarm condition.
In one embodiment, the determining whether there is a target comparison result satisfying a preset advanced alarm condition in the comparison results includes:
determining a first comparison result with the largest difference value with a preset high-level alarm threshold value in the plurality of comparison results;
judging whether the ratio of the first comparison result to the advanced alarm threshold value is greater than 2;
and if so, determining that the first comparison result is the target comparison result.
In one embodiment, the acquiring, by a plurality of fiber bragg grating sensors arranged on a pipeline, multipoint monitoring information corresponding to the pipeline includes:
acquiring multipoint monitoring information corresponding to the pipeline at each moment in a preset time period through a plurality of fiber bragg grating sensors arranged on the pipeline;
correspondingly, the comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results includes:
and comparing the multipoint monitoring information corresponding to each moment with a preset threshold interval to obtain a plurality of comparison results corresponding to each moment.
In one embodiment, the determining whether there is a target comparison result satisfying a preset advanced alarm condition in the comparison results includes:
determining target monitoring points with the most times of comparison results within the preset time period, wherein the times of comparison results are larger than a preset high-level alarm threshold value;
acquiring a second comparison result with the maximum difference value with a preset high-level alarm threshold value from all comparison results corresponding to the target monitoring point;
determining the second comparison result as the target comparison result.
In one embodiment, before outputting the alarm information corresponding to the advanced alarm condition, the method further includes:
acquiring an alarm grade corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition;
and determining the content of the alarm information according to the alarm grade.
In one embodiment, the obtaining an alarm level corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition includes:
and determining the alarm grade corresponding to the target comparison result according to the difference value or the ratio of the target comparison result to a preset high-grade alarm threshold value.
In one embodiment, after determining the content of the alarm information according to the alarm level, the method further includes:
determining a receiving object of the alarm information according to the alarm grade; wherein different alarm levels correspond to different receiving objects.
A nuclear power plant pipeline monitoring device, the device comprising:
the first acquisition module is used for acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
the comparison module is used for comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
the first determining module is used for determining whether a target comparison result meeting a preset advanced alarm condition exists in the comparison results;
and the alarm module is used for outputting alarm information corresponding to the advanced alarm condition when a target comparison result exists.
A monitoring device comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the monitoring method of the nuclear power plant pipeline when executing the computer program.
A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method of monitoring a nuclear power plant pipeline.
According to the monitoring method, the monitoring device, the monitoring equipment and the storage medium for the nuclear power plant pipeline, the monitoring equipment obtains multipoint monitoring information corresponding to the pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline, then the multipoint monitoring information is compared with a preset threshold interval to obtain a plurality of comparison results, whether a target comparison result meeting preset advanced alarm conditions exists in the plurality of comparison results is further determined, and if the target comparison result meets the preset advanced alarm conditions, alarm information corresponding to the advanced alarm conditions is output. Because the monitoring equipment acquires the target comparison result representing the serious event from the comparison results and then can preferentially output the alarm information corresponding to the target comparison result, monitoring personnel can timely know that the alarm is the alarm of the serious event, and the monitoring strength of the nuclear power plant pipeline is improved.
Drawings
FIG. 1 is a diagram of an environment in which a method for monitoring a nuclear power plant pipeline may be implemented in one embodiment;
FIG. 2 is a schematic flow diagram of a method for monitoring a nuclear power plant pipeline in one embodiment;
FIG. 3 is a schematic flow chart of a method for monitoring a nuclear power plant pipeline in another embodiment;
FIG. 4 is a schematic flow chart of a method for monitoring a nuclear power plant pipeline in another embodiment;
FIG. 5 is a schematic flow chart of a method for monitoring a nuclear power plant pipeline in another embodiment;
FIG. 6 is a block diagram of a nuclear power plant pipeline monitoring device in one embodiment;
FIG. 7 is an internal block diagram of a monitoring device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The nuclear power plant pipeline monitoring method can be applied to the application environment shown in fig. 1. The system comprises a 110-bit nuclear power plant pipeline, a monitoring device and a monitoring device, wherein 120 is a fiber grating sensor arranged on the pipeline, 130 is the monitoring device, and 120 is connected with 130 through an optical fiber; the monitoring terminal 130 may be a pipeline monitoring terminal, or may be a monitoring server, which is not limited herein.
It should be noted that the execution subject of the embodiment of the present invention may be a monitoring device of a nuclear power plant pipeline, which may be implemented as part or all of a monitoring device by software, hardware, or a combination of software and hardware. The following method embodiments are described taking as an example the execution subject being a monitoring device.
In one embodiment, as shown in fig. 2, a method for monitoring a nuclear power plant pipeline is provided, which is described by way of example as being used in the monitoring device 130 in fig. 1, and includes:
s101, acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information includes at least one of temperature information, pressure information, stress information, and liquid level information within the pipeline.
Wherein, the pipeline is used for transferring materials such as liquid, gas and the like in a nuclear power plant; the fiber bragg grating sensor belongs to one type of fiber optic sensors, acquires monitoring information by modulating fiber bragg wavelength by external physical parameters, and can realize direct measurement of physical quantities such as temperature, pressure, stress, liquid level and the like, and can comprise a fiber bragg grating temperature sensor, a fiber bragg grating pressure sensor, a fiber bragg grating stress sensor and a fiber bragg grating liquid level sensor; the fiber grating sensor has the characteristics of high sensitivity, small volume, corrosion resistance, electromagnetic radiation resistance, bendable light path, convenience in remote measurement and the like, and is widely applied to the field of monitoring of nuclear power plants.
Specifically, the monitoring equipment can acquire monitoring information of monitoring points corresponding to a plurality of groups of fiber bragg grating sensors fixed on optical fibers; the fiber grating sensor at each monitoring point may include a fiber grating sensor, for example, one of the monitoring points only has a fiber grating temperature sensor, and the monitoring device may acquire temperature information of the monitoring point through the fiber grating temperature sensor; a plurality of fiber grating sensors can also be arranged at the same monitoring point, for example, one monitoring point is provided with a group of fiber grating sensors including a fiber grating temperature sensor and a fiber grating pressure sensor, and the monitoring equipment can simultaneously acquire the temperature information and the pressure information of the monitoring point through the group of fiber grating sensors; the manner of acquiring the monitoring information is not limited herein.
Further, the monitoring information refers to information obtained by the monitoring device through the fiber bragg grating sensor, and may include temperature information, pressure information, stress information, and liquid level information in the pipeline. The temperature information is information generated by the change of the grating wavelength of the fiber grating temperature sensor due to the temperature change; the pressure information is information generated by the change of temperature and pressure on the change of the grating wavelength of the fiber grating pressure sensor; the stress information is information generated by wavelength drift of the fiber bragg grating in the fiber bragg grating stress sensor caused by stress change; the liquid level information refers to information generated by wavelength drift in the fiber grating liquid level sensor caused by pressure generated by liquid level in a pipeline. As for the form of the monitoring information, the monitoring information may be a physical quantity obtained by processing the information generated by the fiber bragg grating sensor by the monitoring device, or a group of numerical values corresponding to the physical quantity obtained in the process of processing the information generated by the fiber bragg grating sensor, and the numerical values may be binary data, or other types of data such as 16-system data; for example, the temperature information may be a temperature value of 55 degrees, or may be a set of binary data corresponding to the temperature value of 55 degrees. The form of the monitoring information is not limited herein.
The multipoint monitoring information may be multipoint monitoring information at the latest moment acquired by the monitoring device in real time; optionally, the multipoint monitoring information corresponding to the pipeline at each time in the preset time period may also be obtained by a plurality of fiber bragg grating sensors arranged on the pipeline, for example, the monitoring information may include monitoring information of each corresponding monitoring point every minute in 1 hour.
S102, comparing the multipoint monitoring information with a preset threshold value interval to obtain a plurality of comparison results.
The multi-point monitoring information acquired by the monitoring equipment through the fiber bragg grating sensors comprises the monitoring information of each group of fiber bragg grating sensors corresponding to each monitoring point, and a plurality of comparison results can be obtained by comparing the multi-point monitoring information with the corresponding threshold intervals. For example, the monitoring device compares the temperature information of each monitoring point with a preset temperature threshold interval, and can obtain a temperature comparison result of each point; the monitoring equipment compares the pressure information of each monitoring point with a preset pressure threshold interval, and can obtain the pressure comparison result of each point. The preset threshold interval is related to a normal working state of a nuclear power plant pipeline, for example, when the temperature of the pipeline in normal working is 40 to 50 degrees, the equipment temperature threshold interval may be 35 to 55 degrees; in addition, because the normal operating condition of each monitoring point in the pipeline is different, a threshold value interval can be respectively preset for each monitoring point, for example, the temperature interval of the first monitoring point in the pipeline can be preset to 35 degrees to 55 degrees, the normal temperature of the second monitoring point is higher, and the corresponding temperature threshold value interval can be preset to 45 degrees to 65 degrees. The preset manner of the threshold interval is not limited herein.
Specifically, the comparison result may be a ratio of the monitoring information to a maximum value or a minimum value of a corresponding threshold interval, for example, when the temperature value in the temperature information is 55 degrees, the ratio to the maximum value of a preset temperature threshold interval from 35 degrees to 55 degrees is 1, that is, the comparison result is 1; the difference between the monitoring information and the maximum value or the minimum value of the corresponding threshold interval may be, for example, when the temperature value in the temperature information is 55 degrees, the difference between the monitoring information and the minimum value of the preset temperature threshold interval from 35 degrees to 55 degrees is 20 degrees, that is, the comparison result is 20 degrees; for example, when the temperature value in the temperature information is 55 degrees, the maximum difference between the temperature value and the preset temperature threshold interval from 35 degrees to 55 degrees is 0 degree, the comparison level may be set to be a according to a mapping relationship between the preset difference and the comparison level, that is, the comparison result is a, and when the temperature value is 65 degrees, the difference between the temperature value and the maximum value is 10 degrees, the comparison level may be set to be B according to a mapping relationship between the preset difference and the comparison level, that is, the comparison result is B. The expression of the comparison result is not limited herein.
Optionally, when the multipoint monitoring information is multipoint monitoring information corresponding to each time of the pipeline in a preset time period, the monitoring device compares the multipoint monitoring information corresponding to each time with a preset threshold interval, and obtains a plurality of comparison results corresponding to each time.
S103, determining whether a target comparison result meeting a preset advanced alarm condition exists in the plurality of comparison results.
In the comparison results obtained in the above steps, a plurality of comparison results may appear to display that the monitoring information exceeds a preset threshold interval, and the monitoring device may send alarm information according to each comparison result exceeding the threshold interval, under which case, when a serious event occurs in the nuclear power plant pipeline due to excessive alarm information, the related alarm information may not be seen in time, and the event may not be processed in time. Therefore, on the basis of obtaining the comparison result, the monitoring equipment can set a high-level alarm condition for improving the monitoring strength of the serious event.
Specifically, when the comparison result meets the high-level alarm condition, it is determined that the monitoring point corresponding to the comparison result has a serious event, and therefore the comparison result meeting the high-level alarm condition is determined as the target comparison result.
And S104, if the alarm information exists, outputting alarm information corresponding to the advanced alarm condition.
The monitoring equipment can output corresponding alarm information according to the target comparison result meeting the advanced alarm condition. Wherein, the alarm information can be directly output according to the advanced alarm condition, for example, when different comparison results meet the same advanced alarm condition, the same alarm information is generated according to the advanced alarm condition; the alarm information can also be formed by combining the advanced alarm condition and the target comparison result, for example, when different comparison results meet the same advanced alarm condition, the alarm information not only comprises information related to the advanced alarm condition, but also comprises information of the target comparison result; further, the alarm information may further include information of a monitoring point corresponding to the target comparison result, and a predicted relevant event corresponding to the target comparison result. The content of the alarm information is not limited herein.
According to the monitoring method of the nuclear power plant pipeline, the monitoring device acquires multi-point monitoring information corresponding to the pipeline through the plurality of fiber bragg grating sensors arranged on the pipeline, then compares the multi-point monitoring information with a preset threshold interval to obtain a plurality of comparison results, further determines whether a target comparison result meeting a preset advanced alarm condition exists in the plurality of comparison results, and if yes, outputs alarm information corresponding to the advanced alarm condition. Because the monitoring equipment acquires the target comparison result representing the serious event from the comparison results and then can preferentially output the alarm information corresponding to the target comparison result, monitoring personnel can timely know that the alarm is the alarm of the serious event, and the monitoring strength of the nuclear power plant pipeline is improved.
Fig. 3 is a schematic flow chart of a nuclear power plant pipeline monitoring method in another embodiment. The present embodiment relates to a method for determining a target comparison result, as shown in fig. 3, the step S103 includes:
s201, determining a first comparison result with the maximum difference value with a preset high-level alarm threshold value in the comparison results.
S202, judging whether the ratio of the first comparison result to the high-level alarm threshold value is greater than 2.
And S203, if so, determining that the first comparison result is the target comparison result.
Specifically, the monitoring device may obtain a first comparison result with a largest difference value from a preset advanced alarm threshold value among the plurality of comparison results, and then further determine a ratio of the first comparison result to the advanced alarm threshold value; if the ratio is greater than 2, the monitoring equipment considers that the first comparison result meets the high-level alarm condition, and the first comparison result can be determined as a target comparison result.
According to the monitoring method of the nuclear power plant pipeline, the monitoring equipment obtains the target comparison result by comparing the comparison result with the preset advanced alarm threshold value, and can monitor the event corresponding to the monitoring information far exceeding the preset threshold value interval, so that the event can arouse attention of monitoring personnel, and further the monitoring strength is improved.
Fig. 4 is a schematic flow chart of a nuclear power plant pipeline monitoring method in another embodiment. The present embodiment relates to another way of determining the target result, as shown in fig. 4, the step S103 includes:
s301, determining the target monitoring point with the maximum times of being greater than the preset high-level alarm threshold value in all comparison results in the preset time period.
S302, obtaining a second comparison result with the maximum difference value with the preset high-level alarm threshold value from all comparison results corresponding to the target monitoring point.
S303, determining the second comparison result as a target comparison result.
The monitoring device may determine the target comparison result from all comparison results within a preset time period. Specifically, the monitoring device may obtain a comparison result greater than a preset advanced alarm threshold, and then obtain each corresponding monitoring point according to the comparison result, so that the monitoring point with the largest number of times greater than the preset advanced alarm threshold in all the comparison results may be obtained, and determined as the target monitoring point.
Further, after the target monitoring point is determined, the monitoring device may obtain all comparison results corresponding to the monitoring point, and determine the comparison result with the largest difference value of the preset advanced alarm threshold values in the comparison results as the target comparison result.
According to the monitoring method of the nuclear power plant pipeline, the monitoring equipment can perform key monitoring on the monitoring points which are easy to be abnormal in the nuclear power plant pipeline by acquiring the target monitoring points and the target comparison result of the target monitoring points, and the monitoring force is improved.
FIG. 5 is a schematic flow chart of a method for monitoring a nuclear power plant pipeline in another embodiment. The present embodiment relates to a manner in which the monitoring device determines the content of the alarm information according to the target comparison result, where before S104, the method further includes:
s401, according to the target comparison result and a preset advanced alarm condition, obtaining an alarm grade corresponding to the target comparison result.
S402, determining the content of the alarm information according to the alarm grade.
When the monitoring device outputs the alarm information according to the target comparison result, the alarm grade corresponding to the target comparison result can be obtained according to the target comparison result, and then the content of the alarm information is determined according to the alarm grade. The alarm level can be first level, second level, etc., or A level, B level, etc.
Specifically, the monitoring device may obtain an alarm level corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition. Optionally, the alarm level corresponding to the target comparison result is determined according to a difference value or a ratio of the target comparison result to a preset high-level alarm threshold. For example, the target comparison result is a temperature comparison result, the comparison result is a temperature difference of 50 degrees, the preset advanced alarm condition may be that the temperature difference is greater than the advanced alarm threshold of 30 degrees, and the monitoring device determines that the temperature information is greater than the maximum value of the preset temperature threshold interval of 30 degrees, and the advanced alarm condition is satisfied; the monitoring device may preset that if the difference between the comparison result and the advanced alarm threshold is greater than or equal to 10 degrees, a primary alarm condition is satisfied, and if the difference between the comparison result and the advanced alarm threshold is greater than or equal to 20 degrees, a secondary alarm condition is satisfied, and since the comparison result is a temperature difference of 50 degrees and a difference between 30 degrees and the advanced alarm threshold is 20 degrees, the secondary alarm condition of greater than or equal to 20 degrees is satisfied, the monitoring device may determine that the comparison result corresponds to a secondary alarm.
On the basis that the alarm grade corresponding to the target comparison result is determined in the steps, the monitoring equipment can determine the content of the alarm information according to the alarm grade. The content of the above alarm information may include an alarm level in addition to the content described in the above S104.
Further, after the monitoring equipment determines the content of the alarm information according to the alarm level, the monitoring equipment can also determine a receiving object of the alarm information according to the alarm level; wherein different alarm levels correspond to different receiving objects. For example, if the alarm level corresponding to the target result is a primary alarm, it may be determined that the receiving object of the alarm information is a plant supervisor corresponding to a pipeline where the monitoring point is located, if the alarm level is a secondary alarm, it is considered that the severity of the event corresponding to the target result is higher, it may be determined that the receiving object of the alarm information is a plant supervisor and a department supervisor corresponding to the plant, and for the alarm information of the highest level, the receiving object may include a plant leader of the nuclear power plant, and the like.
According to the monitoring method of the nuclear power plant pipeline, the monitoring equipment can determine different alarm information contents according to different alarm levels by acquiring the alarm levels corresponding to the target comparison results. Because different alarm levels are set, alarm information with higher level can be timely and clearly acquired, and therefore serious events of pipelines of the nuclear power plant can be timely and properly processed.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 6, there is provided a monitoring apparatus for a nuclear power plant pipeline, the apparatus including a first obtaining module 10, a comparing module 20, a first determining module 30, and an alarm module 40, wherein:
the first acquisition module 10 is configured to acquire multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
the comparison module 20 is configured to compare the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
a first determining module 30, configured to determine whether a target comparison result meeting a preset advanced alarm condition exists in the comparison results;
and the alarm module 40 is used for outputting alarm information corresponding to the advanced alarm condition when the target comparison result exists.
In one embodiment, the first determination module 30 includes:
the first determination unit is used for determining a first comparison result with the largest difference value with a preset high-level alarm threshold value in the comparison results;
the judging unit is used for judging whether the ratio of the first comparison result to the high-level alarm threshold value is greater than 2;
and the second determining unit is used for determining the first comparison result as a target comparison result when the ratio is larger than 2.
In one embodiment, the obtaining module 10 is specifically configured to obtain, through a plurality of fiber bragg grating sensors arranged on a pipeline, multipoint monitoring information corresponding to the pipeline at each time in a preset time period; correspondingly, the comparing module 20 is specifically configured to compare the multipoint monitoring information corresponding to each time with a preset threshold interval, and obtain a plurality of comparison results corresponding to each time.
In one embodiment, the first determining module 30 specifically includes:
the third determining unit is used for determining the target monitoring point with the maximum times of being more than the preset advanced alarm threshold value in all comparison results in the preset time period;
and the obtaining unit is used for obtaining a second comparison result with the maximum difference value with the preset high-level alarm threshold value from all the comparison results corresponding to the target monitoring point, and determining the second comparison result as a target comparison result.
In one embodiment, the above apparatus further comprises:
the second acquisition module is used for acquiring an alarm grade corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition;
and the second determining module is used for determining the content of the alarm information according to the alarm grade.
In an embodiment, the second obtaining module is specifically configured to determine an alarm level corresponding to the target comparison result according to a difference or a ratio between the target comparison result and a preset high-level alarm threshold.
In an embodiment, the second determining module is further configured to determine a receiving object of the alarm information according to the alarm level.
The monitoring device for the nuclear power plant pipeline provided by the embodiment of the invention can execute the method embodiment, the realization principle and the technical effect are similar, and the detailed description is omitted.
Specific definitions of the monitoring device for the nuclear power plant pipeline can be found in the above definition of the monitoring method for the nuclear power plant pipeline, and are not described in detail here. All or part of each module in the monitoring device of the nuclear power plant pipeline can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the monitoring device, and can also be stored in a memory in the monitoring device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a monitoring device is provided, the internal structure of which may be as shown in fig. 7. The monitoring device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the meter monitoring device is configured to provide computing and control capabilities. The memory of the monitoring device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the monitoring device is used for storing monitoring data of the nuclear power plant pipeline. The network interface of the monitoring device is used for communicating with an external terminal through network connection. The computer program is executed by a processor to implement a method of monitoring a nuclear power plant pipeline.
It will be appreciated by those skilled in the art that the configuration shown in fig. 7 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the monitoring device to which the present application is applied, and that a particular monitoring device may include more or less components than shown in the figures, or combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a monitoring device comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program implementing the steps of:
acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
determining whether a target comparison result meeting a preset advanced alarm condition exists in the plurality of comparison results;
and if so, outputting alarm information corresponding to the advanced alarm condition.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining a first comparison result with the maximum difference value with a preset high-grade alarm threshold value in the comparison results; judging whether the ratio of the first comparison result to the advanced alarm threshold value is greater than 2; if so, determining that the first comparison result is the target comparison result.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring multipoint monitoring information corresponding to the pipeline in a preset time period at each moment through a plurality of fiber bragg grating sensors arranged on the pipeline; correspondingly, comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results, including: and comparing the multipoint monitoring information corresponding to each moment with a preset threshold interval to obtain a plurality of comparison results corresponding to each moment.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining target monitoring points with the most times of comparison results within a preset time period, wherein the times of comparison results are greater than a preset high-level alarm threshold value; acquiring a second comparison result with the maximum difference value with a preset high-level alarm threshold value from all comparison results corresponding to the target monitoring point; and determining the second comparison result as a target comparison result.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring an alarm grade corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition; and determining the content of the alarm information according to the alarm grade.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and determining the alarm grade corresponding to the target comparison result according to the difference value or the ratio of the target comparison result to the preset high-grade alarm threshold value.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining a receiving object of the alarm information according to the alarm grade; wherein different alarm levels correspond to different receiving objects.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
determining whether a target comparison result meeting a preset advanced alarm condition exists in the plurality of comparison results;
and if so, outputting alarm information corresponding to the advanced alarm condition.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining a first comparison result with the maximum difference value with a preset high-grade alarm threshold value in the comparison results; judging whether the ratio of the first comparison result to the advanced alarm threshold value is greater than 2; if so, determining that the first comparison result is the target comparison result.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring multipoint monitoring information corresponding to the pipeline in a preset time period at each moment through a plurality of fiber bragg grating sensors arranged on the pipeline; correspondingly, comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results, including: and comparing the multipoint monitoring information corresponding to each moment with a preset threshold interval to obtain a plurality of comparison results corresponding to each moment.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining target monitoring points with the most times of comparison results within a preset time period, wherein the times of comparison results are greater than a preset high-level alarm threshold value; acquiring a second comparison result with the maximum difference value with a preset high-level alarm threshold value from all comparison results corresponding to the target monitoring point; and determining the second comparison result as a target comparison result.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring an alarm grade corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition; and determining the content of the alarm information according to the alarm grade.
In one embodiment, the computer program when executed by the processor further performs the steps of: and determining the alarm grade corresponding to the target comparison result according to the difference value or the ratio of the target comparison result to the preset high-grade alarm threshold value.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining a receiving object of the alarm information according to the alarm grade; wherein different alarm levels correspond to different receiving objects.
The implementation principle and technical effect of the computer-readable storage medium provided by this embodiment are similar to those of the above-described method embodiment, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of monitoring a nuclear power plant pipeline, the method comprising:
acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
determining whether a target comparison result meeting a preset advanced alarm condition exists in the comparison results;
if the high-level alarm condition exists, outputting alarm information corresponding to the high-level alarm condition;
wherein the determining whether a target comparison result meeting a preset advanced alarm condition exists in the plurality of comparison results comprises:
determining a first comparison result with the largest difference value with a preset high-level alarm threshold value in the plurality of comparison results;
judging whether the ratio of the first comparison result to the advanced alarm threshold value is greater than 2;
and if so, determining that the first comparison result is the target comparison result.
2. The method of claim 1, wherein the acquiring multipoint monitoring information corresponding to the pipeline through a plurality of fiber grating sensors arranged on the pipeline comprises:
acquiring multipoint monitoring information corresponding to the pipeline at each moment in a preset time period through a plurality of fiber bragg grating sensors arranged on the pipeline;
correspondingly, the comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results includes:
and comparing the multipoint monitoring information corresponding to each moment with a preset threshold interval to obtain a plurality of comparison results corresponding to each moment.
3. The method of claim 2, wherein the determining whether a target comparison result of the plurality of comparison results that satisfies a preset advanced alarm condition exists comprises:
determining target monitoring points with the most times of comparison results within the preset time period, wherein the times of comparison results are larger than a preset high-level alarm threshold value;
acquiring a second comparison result with the maximum difference value with a preset high-level alarm threshold value from all comparison results corresponding to the target monitoring point;
determining the second comparison result as the target comparison result.
4. The method according to any one of claims 1-3, wherein before outputting the alarm information corresponding to the advanced alarm condition, the method further comprises:
acquiring an alarm grade corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition;
and determining the content of the alarm information according to the alarm grade.
5. The method according to claim 4, wherein the obtaining an alarm level corresponding to the target comparison result according to the target comparison result and a preset advanced alarm condition comprises:
and determining the alarm grade corresponding to the target comparison result according to the difference value or the ratio of the target comparison result to a preset high-grade alarm threshold value.
6. The method of claim 4, wherein after determining the content of the alert information based on the alert level, the method further comprises:
determining a receiving object of the alarm information according to the alarm grade; wherein different alarm levels correspond to different receiving objects.
7. A nuclear power plant pipeline monitoring device, the device comprising:
the first acquisition module is used for acquiring multipoint monitoring information corresponding to a pipeline through a plurality of fiber bragg grating sensors arranged on the pipeline; the monitoring information comprises at least one of temperature information, pressure information, stress information and liquid level information in the pipeline;
the comparison module is used for comparing the multipoint monitoring information with a preset threshold interval to obtain a plurality of comparison results;
the first determining module is used for determining whether a target comparison result meeting a preset advanced alarm condition exists in the comparison results;
the alarm module is used for outputting alarm information corresponding to the advanced alarm condition when a target comparison result exists;
wherein the first determining module comprises:
the first determination unit is used for determining a first comparison result with the largest difference value with a preset high-level alarm threshold value in the plurality of comparison results;
the judging unit is used for judging whether the ratio of the first comparison result to the high-level alarm threshold value is greater than 2;
a second determining unit, configured to determine that the first comparison result is the target comparison result when the ratio is greater than 2.
8. The nuclear power plant pipeline monitoring device according to claim 7, wherein the obtaining module is specifically configured to obtain, through a plurality of fiber bragg grating sensors arranged on a pipeline, a multipoint monitoring message corresponding to the pipeline at each time within a preset time period;
correspondingly, the comparing module is specifically configured to compare the multipoint monitoring information corresponding to each time with a preset threshold interval, and obtain a plurality of comparison results corresponding to each time.
9. A monitoring device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method according to any one of claims 1 to 6 when executing the computer program.
10. A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| CN110146128A (en) * | 2019-05-15 | 2019-08-20 | 中广核核电运营有限公司 | Nuclear piping monitoring method, system, device, equipment and storage medium |
| CN110097984A (en) * | 2019-05-15 | 2019-08-06 | 中广核核电运营有限公司 | Control method, device, computer equipment and the storage medium of nuclear power container |
| CN110175417A (en) * | 2019-05-30 | 2019-08-27 | 中广核核电运营有限公司 | Monitoring method, device, computer equipment and the storage medium of enclosure stress |
| CN110265165B (en) * | 2019-06-18 | 2021-07-20 | 中广核核电运营有限公司 | Nuclear power container temperature adjusting method and device, computer equipment and storage medium |
| CN110360461B (en) * | 2019-07-31 | 2021-12-14 | 广州特种承压设备检测研究院 | Pressure pipeline monitoring system, method, device and computer readable storage medium |
| CN112649460B (en) * | 2019-10-10 | 2023-10-20 | 国核电站运行服务技术有限公司 | Thermal stratification test method for surge tube of voltage stabilizer |
| CN110838377A (en) * | 2019-10-28 | 2020-02-25 | 中广核核电运营有限公司 | Pressure container monitoring system and monitoring method thereof |
| CN110806234A (en) * | 2019-10-28 | 2020-02-18 | 中广核核电运营有限公司 | Optical fiber grating sensing equipment |
| CN110806233A (en) * | 2019-10-28 | 2020-02-18 | 中广核核电运营有限公司 | Fiber grating sensor device and detection device for pressure container |
| CN110987037A (en) * | 2019-12-11 | 2020-04-10 | 岭东核电有限公司 | Nuclear power environment safety monitoring method and device based on fiber bragg grating sensor |
| CN112398219A (en) * | 2020-10-21 | 2021-02-23 | 中国神华能源股份有限公司国华电力分公司 | Intelligent monitoring method and system for power plant and electronic equipment |
| CN112564284A (en) * | 2020-12-04 | 2021-03-26 | 中广核工程有限公司 | Alarm prompting method and device, computer equipment and readable storage medium |
| CN113654899B (en) * | 2021-07-30 | 2023-12-22 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Pressure analysis method, device, equipment and storage medium for conveying pipeline |
| CN114265389A (en) * | 2021-12-21 | 2022-04-01 | 北京华电云博科技有限公司 | Method for detecting compliance safety of hydraulic power plant |
| CN115376291A (en) * | 2022-08-04 | 2022-11-22 | 武汉科瑞新电气自动化有限公司 | Early warning method and system for temperature of switch cabinet and storage medium |
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