CN110838377A - Pressure container monitoring system and monitoring method thereof - Google Patents
Pressure container monitoring system and monitoring method thereof Download PDFInfo
- Publication number
- CN110838377A CN110838377A CN201911031797.0A CN201911031797A CN110838377A CN 110838377 A CN110838377 A CN 110838377A CN 201911031797 A CN201911031797 A CN 201911031797A CN 110838377 A CN110838377 A CN 110838377A
- Authority
- CN
- China
- Prior art keywords
- alarm
- fiber grating
- pressure
- data
- pressure vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
- G21C17/01—Inspection of the inner surfaces of vessels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/112—Measuring temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The application relates to a pressure vessel monitoring system and a monitoring method thereof. The system comprises a fiber bragg grating sensing device, a data collecting device, a remote server and an alarm device which are connected in sequence. The fiber grating sensing device is arranged in the pressure container, detects the temperature and the pressure of the pressure container, generates a detection result, sends the detection result to the data collecting device, analyzes the detection result to obtain an analysis result, and sends an alarm instruction to the alarm device to alarm when the analysis result meets a preset alarm condition. The electric interference can not arouse during the detection, the data collection device improves data transmission efficiency, remote server realizes remote data processing, sends alarm instruction to alarm device when analytic result satisfies predetermined alarm condition and reports to the police to remind operating personnel in time to handle the abnormal conditions, operating personnel can long-range receipt data and alarm information, avoids pressure vessel itself or the environment of locating to bring adverse effect to operating personnel, and it is convenient to use, and the reliability is high.
Description
Technical Field
The application relates to the technical field of monitoring and early warning systems, in particular to a pressure container monitoring system and a monitoring method thereof.
Background
The pressure vessel is a closed device that contains gas or liquid and bears a certain pressure, and is widely used in various industrial devices. In the nuclear power field, pressure vessels include reactor pressure vessels, main steam generators, main pipelines, voltage stabilizers and the like, the pressure vessels are important components for forming nuclear power generation, and the working state of equipment and the stable state of substances contained in the equipment are the basis for guaranteeing the normal work of nuclear power equipment, so that the monitoring of the working state of the nuclear power equipment is very important.
The traditional pressure container monitoring method mainly adopts a piezoelectric sensor to detect pressure, detects the temperature of a container through a temperature sensor, processes detected pressure and temperature information and displays the processed information for operators to check and analyze. However, the detection method easily causes electrical and electromagnetic interference, when the pressure vessel is applied to a special site such as a nuclear power station, the service life of the sensor is reduced, the radiation dose is increased when an operator monitors the pressure vessel in the environment, the physical health of the operator is affected, and the monitoring reliability is low.
Disclosure of Invention
Therefore, it is necessary to provide a pressure vessel monitoring system and a monitoring method thereof to solve the problem of low monitoring reliability of the conventional pressure vessel monitoring method.
A pressure vessel monitoring system comprises a fiber grating sensing device, a data collecting device, a remote server and an alarm device, wherein the fiber grating sensing device is arranged on a pressure vessel and is connected with the data collecting device, the data collecting device is connected with the remote server, and the remote server is connected with the alarm device;
the fiber grating sensing device is used for detecting the temperature and the pressure of the pressure container, generating detection results and sending the detection results to the data collecting device, the data collecting device collects the detection results and sends the detection results to the remote server, the remote server analyzes the received detection results to obtain analysis results, an alarm instruction is sent to the alarm device when the analysis results meet preset alarm conditions, and the alarm device gives an alarm after receiving the alarm instruction.
A method of monitoring a pressure vessel monitoring system, comprising the steps of:
receiving a detection result sent by the data collecting device after being collected; the detection result is obtained by detecting the temperature and the pressure in the pressure container by the fiber bragg grating sensing device;
analyzing according to the detection result to obtain an analysis result;
and sending an alarm instruction to an alarm device when the analysis result meets a preset alarm condition, wherein the alarm instruction is used for controlling the alarm device to alarm.
The pressure container monitoring system and the monitoring method thereof adopt the fiber grating sensing device to detect the temperature and the pressure of the pressure container, do not need to be electrified during detection, do not cause electrical interference, are high temperature resistant and radiation resistant, and can normally work under severe working environment, the data collecting device collects the detection results sent by the fiber grating sensing device and then sends the detection results to the remote server, thereby improving the efficiency of data transmission, the remote server analyzes the received detection results to obtain an analysis result, thereby realizing remote data processing, and sends an alarm instruction to the alarm device to alarm when the analysis result meets the preset alarm condition, thereby reminding an operator to timely handle abnormal conditions, realizing real-time monitoring of the pressure container, and the operator can remotely receive data and alarm information, thereby avoiding adverse effects on the operator caused by the pressure container or the environment where the pressure container is located, the use is convenient, and the monitoring reliability is high.
Drawings
FIG. 1 is a block diagram of a pressure vessel monitoring system in one embodiment;
FIG. 2 is a block diagram of another embodiment of a pressure vessel monitoring system;
FIG. 3 is a block diagram of a pressure vessel monitoring system in yet another embodiment;
FIG. 4 is a flow diagram of a pressure vessel monitoring method in one embodiment;
FIG. 5 is a flow chart of a pressure vessel monitoring method in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment, please refer to fig. 1, which provides a pressure vessel monitoring system, including a fiber grating sensing device 100, a data aggregation device 200, a remote server 300 and an alarm device 400, wherein the fiber grating sensing device 100 is disposed in a pressure vessel, the fiber grating sensing device 100 is connected to the data aggregation device 200, the data aggregation device 200 is connected to the remote server 300, and the remote server 300 is connected to the alarm device 400. The fiber grating sensing device 100 is used for detecting the temperature and the pressure of a pressure container to generate a detection result and sending the detection result to the data collecting device 200, the data collecting device 200 collects the detection result and sends the detection result to the remote server 300, the remote server 300 analyzes the received detection result to obtain an analysis result, an alarm instruction is sent to the alarm device 400 when the analysis result meets a preset alarm condition, and the alarm device 400 alarms after receiving the alarm instruction. The fiber grating sensing device 100 detects the temperature and the pressure of the pressure container, the fiber grating sensing device 100 does not need to be electrified during detection, the fiber grating sensing device does not cause electrical interference, is high temperature resistant and radiation resistant, and can normally work under severe working environment, the data collecting device 200 collects the detection results sent by the fiber grating sensing device 100 and sends the detection results to the remote server 300, the data transmission efficiency can be improved, the remote server 300 analyzes the received detection results to obtain an analysis result, the remote data processing can be realized, an alarm instruction is sent to the alarm device 400 to alarm when the analysis result meets the preset alarm condition, so as to remind an operator to timely handle abnormal conditions, the real-time monitoring of the pressure container is realized, the operator can remotely receive data and alarm information, and the adverse effect of the pressure container or the environment on the operator is avoided, the use is convenient, and the monitoring reliability is high.
Specifically, the fiber grating sensing device 100 is disposed in the pressure vessel, and may be disposed at different positions of the pressure vessel according to the type of data to be detected, for example, the fiber grating sensing device may be disposed inside the bottom of the pressure vessel when the pressure in the pressure vessel needs to be detected, may be disposed on the inner wall of the pressure vessel when the temperature of the liquid in the pressure vessel needs to be detected, and may be disposed in contact with the liquid in the pressure vessel. The fiber grating included in the fiber grating sensing device 100 is a main detection device, and the fiber grating is a diffraction grating formed by axially and periodically modulating the refractive index of the fiber core by a certain method, can be formed by writing on an optical fiber, and is a passive filter device. When the fiber grating sensing device 100 is subjected to an external pressure or senses a temperature change, the grating period of the fiber grating changes, so that the central wavelength of the reflected light also changes, the magnitude of the external force or the temperature can be detected through analyzing the optical parameters of the reflected light, such as the central wavelength, and the detection result is generated and sent to the data collecting device 200. Besides the detected pressure or temperature, the detection result may also include some marking information, such as the serial number, data format information or header information of the fiber grating sensing device 100, so as to better classify the data.
The data aggregation device 200 is a connection body between the fiber grating sensing device 100 and the remote server 300, and can improve the stability of data transmission over a long distance by aggregating the detection results sent by the fiber grating sensing device 100 and then sending the aggregated results to the remote server 300. When the fiber grating sensing device 100 includes a plurality of fiber gratings, the data aggregating device 200 may receive a plurality of detection results of the fiber grating sensing device 100, and then aggregate the detection results and send the aggregated detection results to the remote server 300, so as to improve the efficiency of data transmission. The data aggregating device 200 may transmit data to the remote server 300 according to a predetermined rule, for example, sequentially send different detection results of the fiber grating sensor 112 according to a predetermined time interval, or transmit the detection results in real time, so as to improve the automation degree.
The remote server 300 analyzes the received detection result to obtain an analysis result, and specifically, the detection result may be analyzed according to a data transmission protocol, before the analysis, it is first detected whether the data of the received detection result conforms to the data transmission protocol, if not, the data is discarded, if the data of the received detection result conforms to the data transmission protocol, the data of the received detection result is analyzed according to the data transmission protocol to obtain an analysis result, and then the analysis result is compared with a preset alarm condition. The preset alarm condition is not unique, and may be, for example, a preset dangerous temperature range or a dangerous pressure range, and may be, for example, below 0 ℃ or above 100 ℃, and when the temperature value in the analysis result is within the dangerous temperature range, the remote server 300 sends an alarm command to the alarm device 400. It can be understood that the preset alarm condition may also include other types of data, and the numerical range of the data may also be adjusted according to actual requirements, as long as the skilled person in the art considers that the data can be realized, and the analysis result and the data related to the preset alarm condition may be stored in the database, so as to be convenient for calling. After receiving the alarm instruction, the alarm device 400 gives an alarm to remind a worker to handle the abnormal condition of the pressure container in time, so that the service life of the pressure container is prolonged.
In one embodiment, the remote server 300 is further configured to learn the received detection result to obtain a prediction result, and send an alarm instruction to the alarm apparatus 400 when the prediction result satisfies an alarm condition. The prediction result can reflect the state parameters of the pressure container at the next moment, when the prediction result meets the alarm condition, the pressure container is considered to have potential safety hazard, and at the moment, an alarm instruction is sent to the alarm device 400 to alarm so as to remind a worker to process in time.
Specifically, the learning object may be a plurality of detection results within a period of time, so as to improve the accuracy of the prediction result, the detection result and the prediction result obtained by learning the detection result have the same data type, taking the detection result as the temperature data as an example, the temperature of the pressure vessel detected by the fiber grating sensing device 100 within the previous period of time is learned, so as to obtain the temperature prediction result of the pressure vessel at the next moment, when the temperature prediction result satisfies the alarm condition, it is considered that the temperature abnormality of the pressure vessel will occur, and at this time, the remote server 300 sends an alarm instruction to the alarm device 400 to alarm, so as to remind the worker to pay attention to the temperature state of the pressure vessel, or stop the work of the pressure vessel in time, so as to prevent greater damage. In an extensible manner, the alarm device 400 has different alarm modes after receiving the alarm instruction sent when the analysis result meets the preset alarm condition and after receiving the alarm instruction sent when the prediction result meets the preset alarm condition, so that the detection value alarm or the prediction value alarm can be conveniently distinguished by workers, and the alarm device is convenient and fast to use.
In one embodiment, the remote server 300 learns the received detection results based on the BP neural network to obtain the prediction result. The BP neural network has strong nonlinear mapping capability and a flexible network structure, the number of middle layers and the number of neurons in each layer of the network can be set arbitrarily according to specific conditions, and the application range is wide.
Specifically, the algorithm of the BP neural network first reversely propagates the error to the hidden layer neuron, adjusts the connection weight from the hidden layer to the output layer and the threshold of the output layer neuron, and then adjusts the connection weight from the input layer to the hidden layer and the threshold of the hidden layer neuron according to the mean square error of the hidden layer neuron. In this embodiment, taking the detection result data of the fiber grating sensing device 100 as temperature data as an example, the temperature detection result data in a specific time period may be used as a BP neural network prediction training set, and according to the temperature detection result data when the pressure vessel does not work (room temperature) in another time period, the accuracy of the BP neural network temperature prediction model is verified, and the verification result indicates that: the feasibility, the accuracy and the calculation efficiency of the temperature prediction model can meet the actual temperature early warning requirement. Therefore, by using the prediction model described above, the temperature prediction data for the next time interval can be derived from the temperature training data and the latest temperature history data (the amount of history data is at least more than 15). It is understood that in other embodiments, other methods may be used to learn the received detection result to obtain the prediction result, as long as those skilled in the art can realize this.
In one embodiment, the data aggregation device 200 sends the detection results to the remote server 300 over a 4G wireless network. The detection result can be sent to the remote server 300 through the wireless 4G communication module inserted with the SIM card, wireless data transmission is carried out through a 4G wireless network, the transmission data volume is large, and the transmission rate is high.
In one embodiment, referring to fig. 2, the fiber grating sensing device 100 includes a sensing device 110 and a transmission device 120, the sensing device 110 is disposed in the pressure vessel, and the sensing device 110 is connected to the data collecting device 200 through the transmission device 120. The sensing device 110 is disposed in the pressure vessel, and may be disposed at different positions of the pressure vessel according to the type of data to be detected, for example, the sensing device 110 may be disposed inside the bottom of the pressure vessel when the pressure in the pressure vessel needs to be detected, may be disposed on the inner wall of the pressure vessel when the temperature of the liquid in the pressure vessel needs to be detected, and may be disposed in contact with the liquid in the vessel, etc., the sensing device 110 is connected to the transmitting device 120, and transmits the detected information to the transmitting device 120, and the transmitting device 120 transmits the received information to the data collecting device 200. When the number of the sensing devices 110 is more than two, the number of the transmission devices 120 is equal to that of the sensing devices 110, one sensing device 110 is correspondingly connected with one transmission device 120, and each transmission device 120 is connected with the same data collecting device 200, so that the mutual interference of signals among a plurality of sensing devices 110 can be reduced, the quality of transmitted data is improved, and the detection accuracy is improved.
In one embodiment, the transmitting device 120 is a ZigBee coordinator. The ZigBee coordinator is used as the transmission device 120 to be connected with the plurality of nodes, the plurality of ZigBee coordinators can form a network, the number of routing transmission is not limited, the transmission data capacity is large, the ZigBee coordinator transmits data in a long distance by using the network, information leakage is not easy to cause, and the safety performance is good.
Specifically, when the transmitting device 120 is a ZigBee coordinator, the data aggregating device 200 is an aggregation node of a ZigBee wireless sensor network with a wireless transceiver module. The number of the ZigBee coordinators can be one or more than two, when the number of the ZigBee coordinators is more than two, the plurality of ZigBee coordinators and the ZigBee aggregator form a field ZigBee network, the sensing device 110 serves as a terminal of the ZigBee coordinator to form ZigBee network nodes surrounding the ZigBee coordinator, the ZigBee coordinator receives detection data from the sensing device 110 and sends the detection data to the data aggregator 200 through the ZigBee network, and the data aggregator 200 transmits the data to the remote server 300 through the wireless transceiver module and is further processed by the server.
In one embodiment, referring to fig. 3, the sensing device 110 includes a fiber grating sensor 112 and a fiber grating demodulator 114, the fiber grating sensor 112 is disposed in the pressure vessel, the fiber grating sensor 112 is connected to the fiber grating demodulator 114, and the fiber grating demodulator 114 is connected to the data collecting device 200 through the transmission device 120. The fiber grating demodulator 114 is configured to emit a light pulse to the fiber grating sensor 112, the fiber grating sensor 112 generates light reflection according to the temperature and the pressure in the pressure vessel, the fiber grating demodulator 114 is further configured to receive the reflected light emitted by the fiber grating sensor 112, obtain temperature and pressure parameters in the pressure vessel according to the light intensity and the central wavelength of the reflected light, and generate a detection result according to the temperature and the pressure parameters, and connect the detection result to the data collecting device 200 through the transmission device 120.
Specifically, the number of the fiber grating sensors 112 and the number of the fiber grating demodulators 114 are not unique, and for example, the number of the fiber grating sensors 112 is two or more, and the number of the fiber grating demodulators 114 is one, the fiber grating sensors 112 are connected to the same fiber grating demodulator 114, the fiber grating demodulators 114 transmit light pulses to the fiber grating sensors 112 connected thereto at the same time or at preset time intervals, then receive reflected light returned by the fiber grating sensors 112, analyze optical parameter information in the reflected light, including light intensity, central wavelength of the reflected light, and the like, and realize detection of temperature, pressure, and the like of the pressure vessel.
The structure of the fiber grating demodulator 114 is not exclusive, and may include, for example, a broadband light source, a receiving device, and an analyzing device, wherein the broadband light source and the receiving device are connected to the fiber grating sensor 112 through optical fibers, and the receiving device is connected to the analyzing device. The broadband light source is used for emitting light pulses to the fiber grating sensor 112 so that the fiber grating sensor 112 generates light reflection according to the temperature and the pressure in the pressure container, the receiving device is used for receiving the reflected light emitted by the fiber grating sensor 112 and sending the reflected light to the analyzing device, and the analyzing device obtains temperature and pressure parameters in the pressure container according to the light intensity and the central wavelength of the reflected light. It is understood that in other embodiments, the fiber grating demodulator 114 may have other structures, as long as those skilled in the art can realize the demodulation.
In one embodiment, the fiber grating sensor 112 includes a first fiber grating sensor and a second fiber grating sensor, both disposed in the pressure vessel and connected to the fiber grating demodulator 114, the first fiber grating sensor being exposed in air, and the second fiber grating sensor being encapsulated by a thermal insulation material. The first fiber grating sensor generates a reflected light to the fiber grating demodulator 114 according to the temperature and pressure in the container, and the second fiber grating sensor is packaged by a heat insulating material and generates a reflected light to the fiber grating demodulator 114 according to the pressure in the container. The temperature and pressure parameters of the pressure container can be obtained according to the parameter characteristics of the reflected light of the two fiber bragg grating sensors 112, so that the liquid level information in the pressure container can be analyzed according to the pressure parameters, and the comprehensive detection of the pressure container can be realized by acquiring a plurality of parameters.
Specifically, when the first fiber grating sensor is subjected to pressure and/or temperature change, the grating period of the fiber grating of the first fiber grating sensor changes, so that the central wavelength also changes, and the change of the central wavelength of the fiber grating of the first fiber grating sensor is caused by double factors of external force and external temperature change. The second fiber grating sensor is packaged by a heat insulation material, is not influenced by temperature, and can detect the magnitude of external force through the change of the fiber grating central wavelength of the second fiber grating sensor. The temperature value and the pressure value in the container can be detected through the change of the central wavelength of the fiber bragg grating in the first fiber bragg grating sensor and the second fiber bragg grating sensor, further, the liquid level height in the current container can be calculated according to the pressure value in the container, and the pressure container can be comprehensively detected by acquiring a plurality of parameters. The positions of the first fiber grating sensor and the second fiber grating sensor are not unique, taking the pressure vessel as a cylindrical vessel as an example, the pressure vessel is arranged along the vertical direction, the bottom surface is a horizontal plane, at this time, the first fiber grating sensor and the second fiber grating sensor can be both arranged on the bottom surface inside the pressure vessel and are arranged in contact with the material inside the pressure vessel, because the substance in the pressure container can be fully distributed at the bottom of the pressure container, the first fiber grating sensor which is arranged in contact with the substance in the pressure container can more accurately detect the temperature of the substance in the pressure container, the second fiber grating sensor is arranged on the bottom surface in the pressure container, the pressure born by the bottom of the pressure container can be detected, and the liquid volume in the pressure container can be calculated according to the detected pressure, so that the liquid level height can be obtained. It is understood that in other embodiments, the first fiber grating sensor and the second fiber grating sensor may be disposed at other positions of the pressure vessel, and the positions of the first fiber grating sensor and the second fiber grating sensor may be different, as long as the implementation is considered by those skilled in the art.
In one embodiment, referring to fig. 2, the alarm apparatus 400 includes a controller 410 and a prompting component 420, the controller 410 is connected to the server and the prompting component 420, and the controller 410 is configured to control the prompting component 420 to output a prompting message for alarming after receiving an alarm instruction. Specifically, the prompting component 420 may be connected to a control pin of the controller 410, and after receiving the alarm instruction, the controller 410 sends a trigger signal to the prompting component 420 through the control pin, so that the prompting component 420 gives an alarm. The controller 410 is not unique in type, and may be, for example, a CPLD (Complex Programmable Logic Device), an FPGA (Field-Programmable Gate Array), or a single chip microcomputer. The CPLD has the advantages of flexible programming, high integration level, low design and manufacturing cost and the like as a controller, the FPGA has the advantages of low design cost, high working stability and the like as a controller, the singlechip has strong anti-interference capability as a controller, so the singlechip has the advantages of small volume, simple structure and the like, and the CPLD, the FPGA or the singlechip can realize the corresponding functions of the controller and can be specifically determined according to actual requirements.
In one embodiment, the prompt component 420 includes an audible prompt component and/or a visual prompt component coupled to the controller 410. The controller 410 sends a control signal to the sound prompt component and/or the visual prompt component after receiving the alarm instruction, the sound prompt component sends out sound prompt information to give an alarm, the visual prompt component gives an alarm by displaying information, and the sound prompt component and/or the visual prompt component can serve as the prompt component 420 to give an alarm.
Specifically, the structure of the sound prompt component is not unique, and may include a buzzer, for example, and the buzzer sends an alarm sound to realize an alarm function after receiving the control signal sent by the controller 410, so as to remind the operator to deal with the abnormal condition in time. The structure of the visual prompting component is not unique, and may include a prompting lamp and/or a display screen, for example, when the visual prompting component includes the prompting lamp, the prompting lamp realizes the function of alarming by emitting light after receiving the control signal sent by the controller 410, and further, the prompting lamp can realize the function of information prompting by the color or the flashing state of the lamp. When the visual prompt component comprises the display screen, the display screen can display the information sent by the controller 410 in a numerical value or chart mode and the like, and a worker can visually acquire the information through the touch screen, so that the visual prompt component is convenient and fast to use.
In one embodiment, referring to fig. 2, the alarm device 400 further includes a communication component 430 connected to the controller 410, and the controller 410 is further configured to send an alarm prompt message to the terminal through the communication component 430 after receiving the alarm instruction. The terminal is in communication connection with the communication assembly 430 through a network, after the controller 410 receives an alarm instruction, the analysis result meets a preset alarm condition, and the controller 410 sends an alarm prompt message to the terminal connected with the communication assembly 430 through the communication assembly 430, so that a worker can be remotely informed that the pressure container is abnormal, and the working state of the pressure container can be better monitored. The terminal may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, as long as those skilled in the art can realize the functions.
The pressure vessel monitoring system adopts the fiber grating sensing device 100 to detect the temperature and the pressure of the pressure vessel, the power-on is not needed during the detection, the electrical interference can not be caused, the temperature resistance and the radiation resistance are realized, the normal work can be realized under the severe working environment, the data collecting device 200 collects the detection result sent by the fiber grating sensing device 100 and sends the detection result to the remote server 300, the data transmission efficiency can be improved, the remote server 300 analyzes the received detection result to obtain the analysis result, the remote data processing can be realized, the alarm instruction is sent to the alarm device 400 to alarm when the analysis result meets the preset alarm condition, the operator is reminded to deal with the abnormal condition in time, the real-time monitoring of the pressure vessel is realized, the operator can remotely receive the data and the alarm information, and the adverse effect of the pressure vessel or the environment to the operator is avoided, the use is convenient, and the monitoring reliability is high.
In one embodiment, referring to fig. 4, a monitoring method of a pressure vessel monitoring system is provided, which includes the following steps:
step S110: and receiving the detection result which is sent after the data aggregation device aggregates. The detection result is obtained by detecting the temperature and the pressure in the pressure container by the fiber bragg grating sensing device.
Specifically, the detection result sent after the data aggregation device aggregates can be received by the remote server, and the detection result is generated according to the temperature and pressure parameters in the pressure container and can be detected by the fiber grating sensing device 100. The fiber grating sensing device 100 is disposed in the pressure vessel, and may be disposed at different positions of the pressure vessel according to different types of data to be detected, for example, the fiber grating sensing device may be disposed inside the bottom of the pressure vessel when the pressure in the pressure vessel needs to be detected, may be disposed on the inner wall of the pressure vessel when the temperature of the liquid in the pressure vessel needs to be detected, and may be disposed in contact with the liquid in the vessel. Besides the detected pressure or temperature, the detection result may also include some marking information, such as the serial number, data format information or header information of the fiber grating sensing device 100, so as to better classify the data.
Step S120: and analyzing according to the detection result to obtain an analysis result.
Before analysis, whether the received data of the detection result conforms to the data transmission protocol is detected, if not, the data is discarded, and if the received data of the detection result conforms to the data transmission protocol, the received data of the detection result is analyzed according to the data transmission protocol to obtain an analysis result.
Step S130: and sending an alarm instruction to an alarm device when the analysis result meets the preset alarm condition. The alarm instruction is used for controlling the alarm device to give an alarm.
Comparing the analysis result with a preset alarm condition, where the preset alarm condition is not unique, for example, the preset alarm condition may be a preset dangerous temperature range or a dangerous pressure range, and for example, the dangerous temperature range may be below 0 ℃ or above 100 ℃, and when the temperature value in the analysis result is within the dangerous temperature range, the remote server 300 sends an alarm instruction to the alarm device 400. It can be understood that the preset alarm condition may also include other types of data, and the numerical range of the data may also be adjusted according to actual requirements, as long as the skilled person in the art considers that the data can be realized, and the analysis result and the data related to the preset alarm condition may be stored in the database, so as to be convenient for calling.
In one embodiment, referring to fig. 5, after step S110, step S140 is further included.
Step S140: and learning the detection result to obtain a prediction result, and sending an alarm instruction to the alarm device when the prediction result meets a preset alarm condition.
Specifically, after receiving the detection result in step S110, step S140 may be executed to learn the detection result to obtain a prediction result, and then the prediction result is compared with a preset alarm condition, or step S120 to step S130 may be executed to analyze the detection result to obtain an analysis result, and then the analysis result is compared with the preset alarm condition, or after receiving the detection result in step S110, step S120 to step S130 may be executed, step S140 may be executed to both analyze and learn, and then both the analysis result and the prediction result are compared with the preset alarm condition, and the execution of step S120 and step S140 may be performed in time sequence or simultaneously, and specifically may be adjusted according to actual requirements to improve the reliability of the monitoring method. The learning object may be a plurality of detection results in a period of time to improve the accuracy of the prediction result, the data types of the detection result and the prediction result obtained by learning the detection result are the same, and taking the detection result as the temperature data as an example, the temperature of the pressure vessel detected by the fiber grating sensing device 100 in the previous period of time is learned to obtain the temperature prediction result of the pressure vessel at the next moment. When the prediction result meets the alarm condition, the pressure container is considered to have abnormal temperature, and the remote server 300 sends an alarm instruction to the alarm device 400 to alarm, so that the staff is reminded to pay attention to the temperature state of the pressure container, or the work of the pressure container is stopped in time, and the pressure container is prevented from being damaged greatly.
The pressure container monitoring method adopts the fiber grating sensing device 100 to detect the temperature and the pressure of the pressure container, does not need to be electrified during detection, does not cause electrical interference, is high temperature resistant and radiation resistant, and can normally work under severe working environment, the data collecting device 200 collects the detection results sent by the fiber grating sensing device 100 and then sends the detection results to the remote server 300, so that the data transmission efficiency can be improved, the remote server 300 analyzes the received detection results to obtain an analysis result, so that remote data processing can be realized, when the analysis result meets the preset alarm condition, an alarm instruction is sent to the alarm device 400 to alarm, so as to remind an operator to timely handle abnormal conditions, so that the real-time monitoring of the pressure container is realized, the operator can remotely receive data and alarm information, and the adverse effect of the pressure container or the environment where the pressure container is located on the operator is avoided, the use is convenient, and the monitoring reliability is high.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A pressure vessel monitoring system is characterized by comprising a fiber grating sensing device, a data collecting device, a remote server and an alarm device, wherein the fiber grating sensing device is arranged on a pressure vessel and is connected with the data collecting device;
the fiber grating sensing device is used for detecting the temperature and the pressure of the pressure container, generating detection results and sending the detection results to the data collecting device, the data collecting device collects the detection results and then sends the detection results to the remote server according to preset rules, the remote server analyzes the received detection results to obtain analysis results, an alarm instruction is sent to the alarm device when the analysis results meet preset alarm conditions, and the alarm device gives an alarm after receiving the alarm instruction.
2. The system of claim 1, wherein the remote server is further configured to learn the received detection result to obtain a prediction result, and send an alarm instruction to the alarm device when the prediction result satisfies an alarm condition.
3. The system of claim 2, wherein the remote server learns the received test results based on a BP neural network to obtain the predicted results.
4. The system of claim 1, wherein the data aggregating device sends the detection results to the remote server over a 4G wireless network.
5. The system of claim 1, wherein the fiber grating sensing device comprises a sensing device and a transmission device, the sensing device is disposed on the pressure vessel, and the sensing device is connected to the data aggregation device through the transmission device.
6. The system of claim 5, wherein the transmitting device is a ZigBee coordinator.
7. The system according to claim 5, wherein the sensing device comprises a fiber grating sensor and a fiber grating demodulator, the fiber grating sensor is disposed on the pressure vessel, the fiber grating sensor is connected to the fiber grating demodulator, and the fiber grating demodulator is connected to the data collecting device through the transmission device;
the fiber grating demodulator is used for transmitting light pulses to the fiber grating sensor, the fiber grating sensor generates light reflection according to the temperature and the pressure in the pressure container, the fiber grating demodulator is also used for receiving reflected light transmitted by the fiber grating sensor, obtaining temperature and pressure parameters in the pressure container according to the light intensity and the central wavelength of the reflected light, generating detection results according to the temperature and the pressure parameters, and connecting the detection results with the data collecting device through the transmission device.
8. The system of claim 7, wherein the fiber grating sensor comprises a first fiber grating sensor and a second fiber grating sensor, the first fiber grating sensor and the second fiber grating sensor are both disposed on the pressure vessel and connected to the fiber grating demodulator, the first fiber grating sensor is exposed to air, and the second fiber grating sensor is encapsulated by a thermal insulation material.
9. The system of claim 1, wherein the alarm device comprises a controller and a prompting component, the controller is connected with the server and the prompting component, and the controller is configured to control the prompting component to output prompting information for alarming after receiving the alarm instruction.
10. The system of claim 9, wherein the prompting component comprises an audible prompting component and/or a visual prompting component coupled to the controller.
11. The system of claim 9, wherein the alarm device further comprises a communication component connected to the controller, and the controller is further configured to send an alarm prompt message to a terminal via the communication component after receiving the alarm command.
12. A method of monitoring a pressure vessel monitoring system, comprising the steps of:
receiving a detection result sent by the data collecting device after being collected; the detection result is obtained by detecting the temperature and the pressure in the pressure container by the fiber bragg grating sensing device;
analyzing according to the detection result to obtain an analysis result;
and sending an alarm instruction to an alarm device when the analysis result meets a preset alarm condition, wherein the alarm instruction is used for controlling the alarm device to alarm.
13. The method of claim 12, wherein after the step of receiving the test results that are aggregated by the data aggregation device and sent, the method further comprises the steps of:
and learning the detection result to obtain a prediction result, and sending an alarm instruction to the alarm device when the prediction result meets a preset alarm condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031797.0A CN110838377A (en) | 2019-10-28 | 2019-10-28 | Pressure container monitoring system and monitoring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031797.0A CN110838377A (en) | 2019-10-28 | 2019-10-28 | Pressure container monitoring system and monitoring method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110838377A true CN110838377A (en) | 2020-02-25 |
Family
ID=69575649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031797.0A Pending CN110838377A (en) | 2019-10-28 | 2019-10-28 | Pressure container monitoring system and monitoring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110838377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525442A (en) * | 2020-11-13 | 2021-03-19 | 中国能源建设集团广东省电力设计研究院有限公司 | Converter valve tower water leakage detection device, system and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011107050A (en) * | 2009-11-19 | 2011-06-02 | Toshiba Corp | Device and method for monitoring pipe leakage |
| CN204573600U (en) * | 2015-01-30 | 2015-08-19 | 武汉工程大学 | Based on the pipeline of nuclear power plant leakage detector of distributed optical fiber temperature measurement |
| JP2017032402A (en) * | 2015-07-31 | 2017-02-09 | オリエントブレイン株式会社 | Water level detection device |
| CN109540332A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Parameter monitoring method, apparatus, equipment and the storage medium of liquid in container |
| CN109547363A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Data transmission method, device, computer equipment and storage medium |
| CN109540205A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Monitoring method, device, monitoring device and the storage medium of pipeline of nuclear power plant |
| 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 |
| 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 |
| CN110265165A (en) * | 2019-06-18 | 2019-09-20 | 中广核核电运营有限公司 | Nuclear power vessel temp adjusting method, device, computer equipment and storage medium |
-
2019
- 2019-10-28 CN CN201911031797.0A patent/CN110838377A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011107050A (en) * | 2009-11-19 | 2011-06-02 | Toshiba Corp | Device and method for monitoring pipe leakage |
| CN204573600U (en) * | 2015-01-30 | 2015-08-19 | 武汉工程大学 | Based on the pipeline of nuclear power plant leakage detector of distributed optical fiber temperature measurement |
| JP2017032402A (en) * | 2015-07-31 | 2017-02-09 | オリエントブレイン株式会社 | Water level detection device |
| CN109540332A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Parameter monitoring method, apparatus, equipment and the storage medium of liquid in container |
| CN109547363A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Data transmission method, device, computer equipment and storage medium |
| CN109540205A (en) * | 2018-11-13 | 2019-03-29 | 中广核核电运营有限公司 | Monitoring method, device, monitoring device and the storage medium of pipeline of nuclear power plant |
| 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 |
| 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 |
| CN110265165A (en) * | 2019-06-18 | 2019-09-20 | 中广核核电运营有限公司 | Nuclear power vessel temp adjusting method, device, computer equipment and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525442A (en) * | 2020-11-13 | 2021-03-19 | 中国能源建设集团广东省电力设计研究院有限公司 | Converter valve tower water leakage detection device, system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107369303B (en) | Factory's intelligent diagnosing method, apparatus and system | |
| KR102414080B1 (en) | System and method for predicting cable failure through trend analysis | |
| KR101774105B1 (en) | a remote detecting system of dangerous material | |
| KR102319083B1 (en) | Artificial intelligence based fire prevention device and method | |
| KR101630850B1 (en) | Real-time autonomic urgency blocking device for gas equipment using comprehensive analysis method | |
| CN105389965A (en) | Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors | |
| CN110989462A (en) | Infrared array temperature control method and device | |
| CN202404705U (en) | Electric fire monitoring system based on master-slave duplex bus communication | |
| CN115864223A (en) | Power grid full-professional differentiated operation and maintenance method based on unmanned aerial vehicle inspection technology | |
| CN110838377A (en) | Pressure container monitoring system and monitoring method thereof | |
| CN105353744A (en) | Boiler monitoring method based on Internet of things | |
| CN103237052A (en) | Wireless temperature measuring system for online substation monitoring | |
| WO2017219357A1 (en) | Method and system for monitoring power supply and distribution safety | |
| Gnanaraj et al. | Patient monitoring and control system using internet of thing | |
| CN117279348A (en) | Strong electromagnetic pulse protection system with monitoring function | |
| CN105448014B (en) | Comprehensive wiring method and attack early warning method based on enclosure wall perimeter security system | |
| CN208077386U (en) | Equipment working state monitors system | |
| CN110033594A (en) | Substation safety monitors system and method | |
| CN207976981U (en) | Fire alarm installation and system | |
| CN116546043A (en) | Cable tunnel inspection personnel environment safety monitoring device and method | |
| CN203151559U (en) | Wireless temperature measurement system for on-line monitoring of transformer substation | |
| CN108663970A (en) | A kind of electric power operation safety monitoring system | |
| CN114485990A (en) | Temperature detection device and method for switch cabinet, computer equipment and storage medium | |
| CN211045335U (en) | Gas density relay with contact state monitoring function and monitoring system | |
| CN211179407U (en) | Gas density relay with line diagnosis function and monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200225 |