Pressurized water reactor start-up physical test process monitoring system

Abstract

The utility model discloses a pressurized water reactor start-up physical test process monitoring system. The system comprises a data acquisition cabinet which is connected with an external detector and acquires original data of a pressurized water reactor through the external detector; the data processing and analyzing computer is connected with the data acquisition cabinet and is used for receiving the original data and outputting a processing result; and the test monitoring computer is connected with the data acquisition cabinet and is used for monitoring a processing result. According to the utility model, the data acquisition cabinet, the data processing and analyzing computer and the test monitoring computer are respectively used for realizing the required functions in the pressurized water reactor start-up physical test process, so that the physical test process of the pressurized water reactor is monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of pressurized water reactors in nuclear power plants, in particular to a monitoring system for a physical test process of starting a pressurized water reactor. Background Art

[0002] At present, in the traditional mode, pressurized water reactors only rely on test personnel to collect relevant data through special equipment and record them manually during the loading and criticality process, and the core criticality level is judged by the nuclear power plant operators based on their experience. It takes several days for a nuclear power plant to load fuel and reach criticality, and hundreds to thousands of data points need to be recorded manually during the process, which is prone to errors. In addition, the critical point is determined by the nuclear power plant operators in multiple tests, which wastes test time. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a system for monitoring the physical test process of a pressurized water reactor startup.

[0004] The utility model solves the technical problem by adopting a technical solution: providing a pressurized water reactor startup physical test process monitoring system, comprising:

[0005] A data acquisition cabinet connected to an external detector and collecting raw data of the pressurized water reactor through the external detector;

[0006] A data processing and analysis computer connected to the data acquisition cabinet and receiving the raw data and outputting processing results;

[0007] A test monitoring computer is connected to the data acquisition cabinet and monitors the processing results.

[0008] Furthermore, the data acquisition cabinet includes: an acquisition control host, an interface converter, a network switch, a first microcurrent measuring instrument, and a second microcurrent measuring instrument. The acquisition control host is respectively connected to one end of the interface converter and the network switch, and the other end of the interface converter is respectively connected to the first microcurrent measuring instrument and the second microcurrent measuring instrument. The network switch is respectively connected to the data processing and analysis computer and the test monitoring computer, and the acquisition control host, the first microcurrent measuring instrument and the second microcurrent measuring instrument are all connected to the external detector.

[0009] Furthermore, the first microcurrent measuring instrument and the second microcurrent measuring instrument are both picoampere-level microcurrent measuring instruments.

[0010] Furthermore, the acquisition control host includes: a device controller, a multi-channel data acquisition card and a multi-channel analog output card, the device controller is respectively connected to the multi-channel data acquisition card, the multi-channel analog output card, and one end of the interface converter, and the device controller, the multi-channel data acquisition card and the multi-channel analog output card are all connected to the external detector.

[0011] Furthermore, the data acquisition cabinet also includes: a DC regulated power supply, and the DC regulated power supply is connected to the device controller and the network switch.

[0012] Furthermore, the multi-channel analog output card is also connected to an external multi-pen recorder.

[0013] Furthermore, the device controller includes a multi-channel voltage data acquisition module, a current and voltage universal acquisition module, and a voltage output module interface. The multi-channel voltage data acquisition module and the current and voltage universal acquisition module are both connected to the multi-channel data acquisition card and the external detector, and the voltage output module interface is connected to the multi-channel analog output card.

[0014] Furthermore, the model of the multi-channel voltage data acquisition module is NI-9206, and the model of the current and voltage universal acquisition module is NI-9219.

[0015] Furthermore, the data processing and analysis computer and the test monitoring computer are any one of a portable notebook computer or a traditional computer.

[0016] Furthermore, the data processing and analysis computer is installed with data processing and analysis software and a test database, and the test monitoring computer is installed with test process online monitoring software.

[0017] The implementation of this utility model has the following beneficial effects:

[0018] The pressurized water reactor startup physical test process monitoring system provided by the utility model is provided with a data acquisition cabinet connected to the pressurized water reactor detector, the data acquisition cabinet receives the raw data sent by the reactor detector, and sends the collected raw data to the data processing and analysis computer for processing, the data processing and analysis computer then outputs the processing result, and the test monitoring computer monitors the processing result. Different from the current manual test method, the utility model realizes the required functions in the pressurized water reactor startup physical test process through the data acquisition cabinet, the data processing and analysis computer and the test monitoring computer, thereby realizing the monitoring of the physical test process of the pressurized water reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 It is a structural block diagram of a pressurized water reactor startup physical test process monitoring system provided by an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a pressurized water reactor startup physical test process monitoring system provided by an embodiment of the utility model;

[0022] Among them, 10, data acquisition cabinet; 11, acquisition control host; 111, equipment controller; 112, multi-channel data acquisition card; 113, multi-channel analog output card; 12, interface converter; 13, network switch; 14, first microcurrent measuring instrument; 15, second microcurrent measuring instrument; 16, microcurrent source; 17, high-voltage power supply; 101, first interface; 102, second interface; 103, third interface; 104, fourth interface; 20, data processing and analysis computer; 21, data processing and analysis software; 22, test database; 30, test monitoring computer; 31, test process online monitoring software; 40, multi-record recorder. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0024] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0026] In the current traditional mode, commercial pressurized water reactors rely only on test personnel to collect relevant data through special equipment and record manually during the loading and criticality process, and the core criticality level is judged by the nuclear power plant operator based on experience. This approach has the following defects: it takes several days for a nuclear power plant to load and reach criticality, and hundreds to thousands of data points need to be manually recorded during the process, which is prone to errors; the critical point is determined by the operator through continuous trial and error, and wastes test time. During the subcritical physical test, the source range count rate needs to be measured; and during the zero-power physical test, multiple parameters such as the reactor critical boron concentration, isothermal temperature coefficient, and control rod value need to be measured. The current reactivity instrument can only measure and use a recorder to record the reactivity during the measurement process, and relies on the test personnel to manually process the recorded data to obtain the final test results. Data processing is completely dependent on the experience level of the test personnel, which is prone to errors and wastes a lot of time.

[0027] Different from the current manual test method, the pressurized water reactor startup physical test process monitoring system provided by the embodiment of the utility model can enable other startup physical test personnel to monitor the relevant test process and export data to use third-party tools for offline analysis, quickly verify the test results, effectively improve the test efficiency, reduce the startup physical test time, and bring about economic benefits for nuclear power plants.

[0028] like Figure 1 As shown, the utility model discloses a pressurized water reactor startup physical test process monitoring system, which includes: a data acquisition cabinet 10 connected to an external detector and collecting raw data of the pressurized water reactor through the external detector; a data processing and analysis computer 20 connected to the data acquisition cabinet 10 and receiving raw data and outputting processing results; and a test monitoring computer 30 connected to the data acquisition cabinet 10 and monitoring the processing results.

[0029] Specifically, the detector is generally arranged in the pressurized water reactor or its surroundings, so the detector can detect the relevant data of the pressurized water reactor, and the detector includes a source range detector, a power range detector, an in-core detector, an out-core detector, and a temperature detector. The connection between the data acquisition cabinet 10 and the data processing and analysis computer 20 and the test monitoring computer 30 includes but is not limited to connection through a network cable.

[0030] In actual application scenarios, the data processing and analysis computer 20 can be placed in the main control room and operated by the operator who starts the physical experiment. The experiment monitoring computer 30 can be simultaneously placed in the computer room next to the main control room for other experimenters who start the physical experiment to monitor the relevant experimental process, export data and use third-party tools for offline analysis.

[0031] In this embodiment, the data processing and analysis computer 20 and the test monitoring computer 30 are either portable notebook computers or conventional computers. Figure 2 As shown, the data processing and analysis computer 20 has a printer connection interface, is installed with data processing and analysis software 21 and a test database 22, and can be used to process and analyze the test data (raw data) and output the processing results; the test monitoring computer 30 is installed with test process online monitoring software 31, which is used for monitoring the relevant experimental process and offline analysis of data (processing results). Both the data processing and analysis computer 20 and the test monitoring computer 30 can be connected to a printer for output.

[0032] The main control test personnel conduct relevant experiments according to the test procedures through the data processing and analysis software 21 on the data processing and analysis computer 20, and other offline data analysis and synchronous verification work needs to be performed synchronously by other test personnel. Exemplarily, the test process online monitoring software 31 on the test monitoring computer 30 is connected to the test database 22 on the data processing and analysis computer 20 through the network switch 13 to obtain the test information data. The test personnel can view the test status and results through the test monitoring computer 30, and can also export the test data to use third-party tools to quickly perform offline data analysis.

[0033] In addition, in this embodiment, the data acquisition cabinet can also be connected to the instrument control platform, which is operated by an operator. Therefore, the instrument control platform can be used to control various instruments in the data acquisition cabinet 10, and the collected signals are converted into network signals, and the network signals are transmitted to the data processing and analysis computer 20. The data processing and analysis computer 20 processes the network signals and outputs the processing results to the data acquisition cabinet 10. The data acquisition cabinet 10 then sends the processing results to the test monitoring computer 30, which monitors the processing results to know the status of the pressurized water reactor. The test monitoring computer 30 can also be provided with an alarm function. When the monitored processing results exceed the preset normal range, the test monitoring computer 30 alarms to remind the staff to take measures in time.

[0034] In this embodiment, if Figure 2 As shown, the data acquisition cabinet 10 includes: an acquisition control host 11, an interface converter 12, a network switch 13, a first microcurrent measuring instrument 14, a second microcurrent measuring instrument 15, a microcurrent source 16, and a high-voltage power supply 17. The acquisition control host 11 is respectively connected to one end of the interface converter 12 and the network switch 13, and the other end of the interface converter 12 is respectively connected to the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15. The network switch 13 is respectively connected to a data processing and analysis computer 20 and a test monitoring computer 30. The acquisition control host 11, the first microcurrent measuring instrument 14, the second microcurrent measuring instrument 15, the microcurrent source 16 and the high-voltage power supply 17 are all connected to the external detector.

[0035] Specifically, the acquisition control host 11 can be connected to the network switch 13 via a network cable, and the network switch 13 can be connected to the network interface (fourth interface 104) on the rear panel of the data acquisition cabinet 10 by leading out the network cable, and the data processing and analysis computer 20 and the test monitoring computer 30 can also be connected through the network switch 13. Exemplarily, the test process online monitoring software 31 on the test monitoring computer 30 is connected to the test database 22 on the data processing and analysis computer 20 through the network switch 13 to obtain the test information data.

[0036] The connection between the first microcurrent measuring instrument 14, the second microcurrent measuring instrument 15, the microcurrent source 16, the high-voltage power supply 17 and the interface converter 12 and the third interface 103 includes but is not limited to data lines or parallel cables. For example, when a commercial pressurized water reactor is started up and physical tests are carried out, the signal input ends of the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15 can be connected to the current input end of the power range detector through a wire, the high-voltage output end of the high-voltage power supply 17 can be connected to the high-voltage output port of the power range detector through a wire, and the neutron current source signal output by the off-core detector is input to the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15 in the data acquisition cabinet 10 through the third interface 103 using a cable.

[0037] In this embodiment, the model of the interface converter 12 may be NIGPIB-RS232, the model of the network switch 13 may be SIEMENSSCALANCEX005, the model of the microcurrent source 16 may be KEITHLEY6220, and the model of the high voltage power supply 17 may be SRSPS-310. Considering that the measured current is not affected, the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15 are both picoampere microcurrent measuring instruments, and the models of the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15 may both be KEITHLEY6487.

[0038] In one embodiment of the present invention, Figure 2 As shown, the acquisition control host 11 includes a device controller 111, a multi-channel data acquisition card 112 and a multi-channel analog output card 113. The device controller 111 is respectively connected to the multi-channel data acquisition card 112, the multi-channel analog output card 113 and one end of the interface converter 12. The device controller 111, the multi-channel data acquisition card 112 and the multi-channel analog output card 113 are all connected to the external detector.

[0039] Specifically, the acquisition control host 11 is provided with a dedicated card slot for a multi-channel data acquisition card 112 and a multi-channel analog output card 113, which are inserted into the dedicated card slot of the acquisition control host 11 and connected to the device controller 111 through the embedded FPGA mainboard of the acquisition control host 11. The external voltage and current are input to the multi-channel data acquisition card 112 through the first interface 101, and the multi-channel data acquisition card 112 acquires the external voltage and current, and sends the external voltage and current data to the device controller 111, and the device controller 111 can send the data information to the multi-channel analog output card 113. Among them, the model of the device controller 111 can be NIcRI0-9068. It can be understood that the data processing and analysis computer 20 can be connected to the device controller 111 through the network switch 13.

[0040] In one embodiment of the utility model, the device controller 111 includes a multi-channel voltage data acquisition module, a current and voltage general acquisition module, and a voltage output module interface. The multi-channel voltage data acquisition module and the current and voltage general acquisition module are both connected to the multi-channel data acquisition card 112 and the external detector, and the voltage output module interface is connected to the multi-channel analog output card 113.

[0041] Specifically, the multi-channel voltage data acquisition module, the current and voltage universal acquisition module, and the voltage output module interface are connected to the device controller 111. The multi-channel voltage data acquisition module and the current and voltage universal acquisition module can be connected to external detectors through wires. For example, the multi-channel voltage data acquisition module and the current and voltage universal acquisition module are connected to temperature detectors (reactor core temperature input interface, pressurizer water level input interface, control rod position signal input interface). Among them, the model of the multi-channel voltage data acquisition module can be NI-9206, and the model of the current and voltage universal acquisition module can be NI-9219.

[0042] In one embodiment of the present invention, Figure 2 As shown, the multi-channel analog output card 113 is also connected to the external multi-pen recorder 40. The multi-channel analog output card 113 can be connected to the external multi-pen recorder 40 through the second interface 102 to perform real-time recording.

[0043] In one embodiment of the utility model, the data acquisition cabinet 10 further includes a DC regulated power supply, which is connected to the device controller 111 and the network switch 13. The DC regulated power supply is connected to the device controller 111 and the network switch 13 through a wire for power supply. The model of the DC regulated power supply includes but is not limited to NIPS-15.

[0044] The pressurized water reactor startup physical test process monitoring system provided by the embodiment of the utility model is provided with a data acquisition cabinet connected to the pressurized water reactor detector, the data acquisition cabinet receives the raw data sent by the reactor detector, and sends the collected raw data to the data processing and analysis computer for processing, the data processing and analysis computer then outputs the processing result, and the test monitoring computer monitors the processing result. The embodiment of the utility model realizes the required functions in the pressurized water reactor startup physical test process through the data acquisition cabinet, the data processing and analysis computer and the test monitoring computer, thereby realizing the monitoring of the physical test process of the pressurized water reactor.

[0045] The pressurized water reactor startup physical test includes subcritical physical test, zero power physical test, criticality extrapolation measurement, loading criticality supervision, etc. The following takes the specific embodiment of the primary critical physical test as an example to illustrate the pressurized water reactor startup physical test process monitoring system provided by the embodiment of the utility model:

[0046] The data processing and analysis computer 20 is placed in the main control room, the test monitoring computer 30 is placed in the computer room next to the main control room, the data acquisition cabinet 10 is connected to the data processing and analysis computer 20 and the test monitoring computer 30 through a network cable, and the data acquisition cabinet 10 is connected to an external detector through a cable. The reactor source range count rate signal output by the source range detector is directly input to the data acquisition cabinet 10 through a cable, and the reactor source range count rate signal and the control rod position signal are sent to the multi-channel data acquisition card 112 through the first interface 101. The multi-channel data acquisition card 112 converts the signal into a digital signal and directly inputs it to the device controller 111 through the internal interface. After obtaining the data, the device controller 111 encapsulates it and gives the machine time of signal acquisition, and stores the data and time together in the network cache area. The data processing and analysis computer 20 is connected to the device controller 111 through the network switch 13, and periodically accesses the network buffer area of ​​the device controller 111 to obtain the measurement data, and selects whether to perform real-time filtering processing on the obtained reactor source range count rate data and the calculated source range average count rate data as needed, and displays them in real time on the chart of the data processing and analysis software 21 to draw data-time curves, etc. The test personnel and the reactor operator can view the test data trend at the same time.

[0047] The following is a specific embodiment of a zero-power physical test as an example to illustrate the pressurized water reactor startup physical test process monitoring system provided by the embodiment of the utility model:

[0048] When a commercial pressurized water reactor is conducting a physical test for startup, the neutron current signal output by the reactor's external detector (generally a power range) is directly input to the data acquisition cabinet 10 through a cable. The neutron current signal is input to the first microcurrent measuring instrument 14 and the second microcurrent measuring instrument 15 through the third interface 103, and after being processed, it is converted into a digital signal and sent to the device controller 111 through the interface converter 12. The core average temperature, pressurizer water level, control rod position and other signals (up to 20 signals) are sent to the multi-channel data acquisition card 112 through the first interface 101. The multi-channel data acquisition card 112 converts the signal into a digital signal and directly inputs it to the device controller 111 through the internal interface. After obtaining each data, the device controller 111 encapsulates it, gives the machine time of signal acquisition, and stores the data and time together in the network cache area. The data processing and analysis computer 20 is connected to the device controller 111 through the network switch 13, and regularly accesses the network buffer area of ​​the device controller 111 to obtain the measurement data, and calculates the obtained data to obtain the relevant parameters of the reactivity and zero-power physical test, displays the measured data in real time, and draws the data-time curve on the chart of the data processing and analysis software 21; the test personnel and the reactor operator can view the test data trend at the same time, and the operator can decide the test action according to the test trend. After the test is completed, the computer automatically processes the parameters required for the zero-power physical test, and the test personnel can decide whether to print the test results according to the needs. When training the test personnel or viewing the historical test results, the data processing and analysis computer 20 can be directly used to retrieve the various data stored in the test database 22 for demonstration, and the test parameter results during the test can be given.

[0049] In the embodiment of the utility model, the various signals collected can be used to calculate reactivity or control rod value, and the measurement parameters of the commercial pressurized water reactor startup physical test can be automatically given by combining various parameters for analysis; the various data collected can be filtered and analyzed by using data processing technology; the various data collected during the test can be displayed in real time or played back by using visual programming technology. In addition, the embodiment of the utility model has high data measurement performance, automated data analysis, and a simple software and hardware operation interface, which greatly reduces the pressure of the current pressurized water reactor startup physical test, improves the test efficiency, and realizes the monitoring of the commercial pressurized water reactor startup physical test process, and covers the entire test process from loading to reactor zero power physical test.

[0050] The above embodiments only express the preferred implementation modes of the present utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present utility model. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present utility model, and several deformations and improvements can be made, which all belong to the protection scope of the present utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the present utility model should belong to the scope covered by the claims of the present utility model.

Claims

1. A PWR startup physical test process monitoring system, It is characterized in that include: A data acquisition cabinet connected to an external detector and collecting raw data of the pressurized water reactor through the external detector; A data processing and analysis computer connected to the data acquisition cabinet and receiving the raw data and outputting processing results; A test monitoring computer connected to the data acquisition cabinet and monitoring the processing results; Wherein, the data acquisition cabinet includes a network switch; the test monitoring computer obtains the processing results in the data acquisition cabinet through the network switch.

2. The pressurized water reactor startup physical test process monitoring system according to claim 1, It is characterized in that The data acquisition cabinet includes: an acquisition control host, an interface converter, a network switch, a first microcurrent measuring instrument, and a second microcurrent measuring instrument. The acquisition control host is respectively connected to one end of the interface converter and the network switch, and the other end of the interface converter is respectively connected to the first microcurrent measuring instrument and the second microcurrent measuring instrument. The network switch is respectively connected to the data processing and analysis computer and the test monitoring computer. The acquisition control host, the first microcurrent measuring instrument and the second microcurrent measuring instrument are all connected to the external detector.

3. The pressurized water reactor startup physical test process monitoring system according to claim 2, It is characterized in that The first microcurrent measuring instrument and the second microcurrent measuring instrument are both picoampere-level microcurrent measuring instruments.

4. The pressurized water reactor startup physical test process monitoring system according to claim 2, It is characterized in that The acquisition control host includes: a device controller, a multi-channel data acquisition card and a multi-channel analog output card. The device controller is connected to the multi-channel data acquisition card, the multi-channel analog output card and one end of the interface converter respectively. The device controller, the multi-channel data acquisition card and the multi-channel analog output card are all connected to the external detector.

5. The pressurized water reactor startup physical test process monitoring system according to claim 4, It is characterized in that The data acquisition cabinet also includes: a DC regulated power supply, and the DC regulated power supply is connected to the device controller and the network switch.

6. The pressurized water reactor startup physical test process monitoring system according to claim 4, It is characterized in that The multi-channel analog output card is also connected to an external multi-pen recorder.

7. The pressurized water reactor startup physical test process monitoring system according to claim 4, It is characterized in that The device controller includes a multi-channel voltage data acquisition module, a current and voltage universal acquisition module, and a voltage output module interface. The multi-channel voltage data acquisition module and the current and voltage universal acquisition module are both connected to the multi-channel data acquisition card and the external detector, and the voltage output module interface is connected to the multi-channel analog output card.

8. The pressurized water reactor startup physical test process monitoring system according to claim 7, It is characterized in that The model of the multi-channel voltage data acquisition module is NI-9206, and the model of the current and voltage universal acquisition module is NI-9219.

9. The pressurized water reactor startup physical test process monitoring system according to claim 1, It is characterized in that The data processing and analysis computer and the test monitoring computer are any one of a portable notebook computer or a traditional computer.

10. The pressurized water reactor startup physical test process monitoring system according to claim 1, It is characterized in that The data processing and analysis computer is installed with data processing and analysis software and a test database, and the test monitoring computer is installed with test process online monitoring software.

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