WO2016147374A1 - Control device of in-reactor nuclear instrumentation device - Google Patents

Control device of in-reactor nuclear instrumentation device Download PDF

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Publication number
WO2016147374A1
WO2016147374A1 PCT/JP2015/058196 JP2015058196W WO2016147374A1 WO 2016147374 A1 WO2016147374 A1 WO 2016147374A1 JP 2015058196 W JP2015058196 W JP 2015058196W WO 2016147374 A1 WO2016147374 A1 WO 2016147374A1
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Prior art keywords
detector
unit
measurement
data
nuclear instrumentation
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PCT/JP2015/058196
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French (fr)
Japanese (ja)
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齊藤　敦
俊英 相場
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三菱電機株式会社
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Priority to PCT/JP2015/058196 priority Critical patent/WO2016147374A1/en
Publication of WO2016147374A1 publication Critical patent/WO2016147374A1/en

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    • 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
    • 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
    • G21C17/108—Measuring reactor flux
    • 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

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  • This invention relates to a control device for an in-core nuclear instrumentation device that can improve the accuracy of data acquisition in the reactor of the in-core nuclear instrumentation device.
  • a conventional in-core nuclear instrumentation device detects map data in a nuclear reactor.
  • the detector of the in-core nuclear instrumentation apparatus is configured to measure the intensity of the neutron flux in the reactor while moving in the reactor.
  • the driving speed of the detector is controlled by the control device of the in-core nuclear instrumentation device.
  • the CPU of the control device acquires and processes the measurement data of the detector in synchronization with the sampling period of the CPU.
  • the measurement data of the detector depends on the sampling period of the CPU.
  • the CPU compares the measurement data every sampling period of the CPU. And when the difference of the measured data compared exceeds a fixed value, it corresponds by measuring measurement data (for example, refer patent document 1).
  • the driving speed of the detector fluctuates by about ⁇ 1%. Thereby, it is inevitable that an error occurs between the position where the detection data should be detected in the map data and the position where the detection data is detected. Therefore, according to the conventional control device, since the detector driving speed has an error, the position of the detector is rarely a fixed interval in the CPU sampling period, so the effect of improving the measurement accuracy is limited. There was a problem of being correct.
  • the present invention has been made to solve the above-described problems, and provides a control device for an in-core nuclear instrumentation device that can improve the accuracy of data acquisition in the reactor of the in-core nuclear instrumentation device. Objective.
  • the control device for the in-core nuclear instrumentation device of the present invention is: A detector for measuring the neutron flux in the reactor; In the control device of the in-core nuclear instrumentation device that controls the in-core nuclear instrumentation device having a driver that moves the detector in the nuclear reactor, A position setting unit for setting a measurement position in the reactor of the detector; A position detector for detecting the position of the detector in the reactor from the driving data of the driver; A comparison unit for comparing whether or not the measurement position set by the position setting unit matches the position of the detector detected by the position detection unit; A measurement unit that receives the measurement data of the detector and stores the measurement data of the detector at the time when it is determined that the comparison unit matches. And a control unit that transmits drive control data of the driver.
  • control device of the in-core nuclear instrumentation device of the present invention The accuracy of data acquisition in the nuclear reactor of the in-core nuclear instrumentation device can be improved.
  • FIG. 1 It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus and in-core nuclear instrumentation apparatus of Embodiment 1 of this invention. It is a figure which shows the detail of the detector of the in-core nuclear instrumentation apparatus shown in FIG. It is a figure for demonstrating the data flow of the in-core nuclear instrumentation apparatus shown in FIG. 1, and a control apparatus. It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG. It is a figure for demonstrating the timing of acquisition of the measurement data of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG. 5 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
  • FIG. Embodiments of the present invention will be described below.
  • 1 is a diagram showing a configuration of an in-core nuclear instrumentation device and a control device for an in-core nuclear instrumentation device according to Embodiment 1 of the present invention.
  • FIG. 2 is a diagram showing details of the detector in a portion surrounded by A of the in-core nuclear instrumentation apparatus shown in FIG.
  • FIG. 3 is a diagram for explaining a data flow between the in-core nuclear instrumentation device and the control device shown in FIG.
  • FIG. 4 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation device shown in FIG.
  • FIG. 5 is a diagram for explaining the timing of acquisition of measurement data of the control device of the in-core nuclear instrumentation device shown in FIG. In FIG. 5, it is the figure which showed the relationship between the position of the detector of a vertical axis
  • FIG. 6 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
  • an in-core nuclear instrumentation device 100 is installed in a nuclear reactor containment vessel in which a nuclear reactor 3 is stored.
  • the control device 10 of the in-core nuclear instrumentation device 100 is installed outside the reactor containment vessel in which the nuclear reactor 3 is stored.
  • the control device 10 is usually installed at a location away from the nuclear reactor 3.
  • the in-core nuclear instrumentation apparatus 100 includes a detector 1, a driver 4, an extraction limit switch 5, and a safety limit switch 6.
  • the detector 1 is for measuring the neutron flux in the nuclear reactor 3.
  • a plurality of guide tubes 9 for inserting the detector 1 are formed in the nuclear reactor 3. Each guide tube 9 is formed so as to extend in the axial direction at a plurality of positions in the nuclear reactor 3.
  • the driver 4 moves the detector 1 in the nuclear reactor 3.
  • the driver 4 includes a drive cable 2, a drive motor 40, and a position measurement unit 41.
  • the detector 1 is connected to the tip of the drive cable 2.
  • the drive motor 40 drives the drive cable 2 by winding or unwinding the drive cable 2.
  • the drive motor 40 is driven by the drive control data T ⁇ b> 1 transmitted from the control device 10. Further, the drive motor 40 transmits the measurement data T3 of the detector 1 to the control device 10 via the drive cable 2.
  • the position measuring unit 41 measures drive data T2 of the driver 4. Specifically, the position measuring unit 41 converts the moving length of the drive cable 2 that has been moved by driving the drive motor 40 into an electric signal to obtain drive data T2. Further, the position measuring unit 41 transmits the drive data T2 to the control device 10.
  • the pull-out limit switch 5 is a limit unit that sets a movement limit for pulling out the drive cable 2 and detects that the drive cable 2 has reached the movement limit position.
  • the safety limit switch 6 is formed closer to the drive motor 40 than the pull-out limit switch 5 of the drive cable 2.
  • the safety limit switch 6 is a safety switch for preventing the drive cable 2 from being pulled out any more.
  • the seal table 7 can penetrate the drive cable 2 and seals the inside of the reactor 3 and the outside of the reactor 3.
  • the control device 10 includes a position detection unit 13, a position setting unit 12, a comparison unit 14, a measurement unit 15, and a CPU unit 11 as a control unit.
  • the CPU unit 11 transmits drive control data T ⁇ b> 1 for driving the driver 4 to the driver 4.
  • drive control data T ⁇ b> 1 from the CPU unit 11 is transmitted to the power supply control unit 8.
  • the power source control unit 8 controls power source power supplied to the drive motor 40 of the driver 4.
  • the power supply control unit 8 controls the power supply power based on the drive control data T1 and supplies it to the drive motor 40. Therefore, the drive speed of the drive motor 40 is controlled based on the drive control data T1.
  • the position detection unit 13 receives an electrical signal as the drive data T2 from the position measurement unit 41, and converts this electrical signal into, for example, a position signal in units of mm. And the position detection part 13 detects the position in the nuclear reactor 3 of the detector 1 from the drive data T2.
  • the position setting unit 12 sets the measurement position of the neutron flux in the reactor 3 of the detector 1. This measurement position is determined at regular intervals of 325 points, for example, every 0.5 inch with respect to the longitudinal direction of one guide tube 9 in the nuclear reactor 3. And a measurement position is set to each of the plurality of guide tubes 9. The map data of the neutron flux in the nuclear reactor 3 can be obtained by obtaining measurement data at these measurement positions. Further, the measurement position set by the position setting unit 12 is transmitted to the CPU unit 11.
  • the comparison unit 14 compares the measurement position set by the position setting unit 12 with the position of the detector 1 detected by the position detection unit 13 and detects whether or not they match.
  • the measurement unit 15 receives, for example, a current signal from the detector 1 as measurement data T3 from the drive motor 40. And if the measurement part 15 detects that the comparison part 14 corresponds, the signal of this comparison part 14 will be received and the measurement data T3 of the detector 1 at that time will be preserve
  • the CPU unit 11 reads out the measurement data T3 stored in the measurement unit 15 at a sampling period and creates map data of the in-core nuclear instrumentation apparatus 100 in association with the measurement position set by the position setting unit 12. To do.
  • the position setting unit 12 sets the detection position of the neutron flux in the reactor 3 of the detector 1 (step ST1 in FIG. 6). Then, which position in the nuclear reactor 3 is set as the detection position is transmitted to the CPU unit 11. As another method, it is conceivable that the CPU unit 11 sets the detection position of the neutron flux in the reactor 3 of the detector 1 and transmits the detection position to the position setting unit 12 for storage. . In either case, the detection position is set before measurement without being influenced by the operation of the CPU unit 11.
  • the comparison unit 14 compares and determines whether the position of the detector 1 detected by the position detection unit 13 and the measurement position set by the position setting unit 12 match or do not match ( Step ST2 in FIG. 6). If they do not match, the process returns again to step ST2. Therefore, the comparison unit 14 can perform the comparison operation without being influenced by the operation of the CPU unit 11. If they match, the measurement unit 15 stores the measurement data T3 at that time (step ST3 in FIG. 6).
  • the CPU unit 11 acquires measurement data T3 stored in the measurement unit 15 at the sampling period. Then, the previously acquired detection position of the position setting unit 12 and the measurement data T3 are stored in association with each other, and map data in the nuclear reactor 3 is created (step ST4 in FIG. 6).
  • the detector 1 shows an example in which the detector 1 is controlled to move at a constant moving speed by the drive control data T1 of the CPU unit 11.
  • the vertical axis represents the distance from the upper limit position of the detector 1, that is, the uppermost position of the guide tube 9.
  • the horizontal axis represents the time of movement from the upper limit position of the detector 1.
  • the vertical axes H1, H2, H3, H4, and H5 indicate the measurement positions set by the position setting unit 12.
  • J1 to J8 on the horizontal axis indicate the sampling period of the CPU unit 11.
  • the sampling period of the CPU unit 11 is determined by a constant interval and a clock period of the CPU unit 11.
  • the moving speed of the detector 1 is controlled to be constant by the CPU unit 11. However, since the detector 1 is moving while the drive cable 2 is wound by the drive motor 40, as is clear from FIG. 5, the fluctuation is not an exact direct proportion to time.
  • the detector 1 starts moving from the upper limit position in the nuclear reactor 3 and measurement is performed. First, at the time point J1 of the sampling period of the CPU unit 11, the position of the detector 1 is H1A. For this reason, the comparison unit 14 determines that the measurement position H1 and the position H1A of the detector 1 do not match. In this case, the measurement unit 15 does not save the measurement data T3. And CPU part 11 does not acquire measurement data T3.
  • the position of the detector 1 is H1.
  • the comparison unit 14 determines that the measurement position H1 matches the position H1 of the detector 1.
  • the measurement unit 15 stores the measurement data T3 of the detector 1 at this time.
  • the CPU unit 11 acquires measurement data T3 stored by the measurement unit 15.
  • the CPU unit 11 stores the measurement data T3 in association with the data of the first measurement position H1.
  • the CPU unit 11 stores the measurement data T3 in association with the data at the second measurement position H2. To do.
  • the position of the detector 1 is H3A.
  • the comparison unit 14 determines that the measurement position H3 and the position H3A of the detector 1 do not match.
  • the measurement unit 15 does not save the measurement data T3.
  • CPU part 11 does not acquire measurement data T3.
  • the position of the detector 1 is H3B. Therefore, the CPU unit 11 does not acquire the measurement data T3, similar to the time point J4 described above.
  • the position of the detector 1 becomes H3.
  • the comparison unit 14 determines that the measurement position H3 matches the position H3 of the detector 1. Therefore, the measurement part 15 preserve
  • the position of the detector 1 is H4A.
  • the comparison unit 14 determines that the measurement position H4 and the position H4A of the detector 1 do not match.
  • the measurement unit 15 does not save the measurement data T3.
  • the CPU unit 11 acquires measurement data T3 previously stored in the measurement unit 15. Then, the CPU unit 11 associates and saves the measurement data T3 as data of the third measurement position H3.
  • the position of the detector 1 becomes H4.
  • the comparison unit 14 determines that the measurement position H4 matches the position H4 of the detector 1. Therefore, the measurement part 15 preserve
  • the position of the detector 1 is H5A.
  • the CPU unit 11 acquires the previously stored measurement data T3 in the same manner as the time point J6 described above. Then, the CPU unit 11 stores the measurement data T3 in association with the data of the fourth measurement position H4.
  • the same operation as described above is performed, and the measurement data T3 is not acquired because the position of the detector 1 is H5B at the time point J8 of the sampling period of the CPU unit 11.
  • the position of the detector 1 is H5, and the measurement data T3 of the detector 1 is stored in the measurement unit 15.
  • the measurement data of the detector for each measurement position can be stored without being influenced by the sampling period of the CPU unit. Therefore, data with excellent accuracy can be acquired.
  • the measurement data of the detector at each measurement position can be stored without being affected by the moving speed of the detector, it is possible to acquire data with excellent accuracy.
  • the CPU unit can acquire measurement data from the measurement unit at each sampling period, it can create map data with excellent accuracy.
  • the measurement data T3 stored in the measurement unit 15 is acquired at the sampling period of the CPU unit 11 .
  • the present invention is not limited to this, and all measurements are completed. After that, a plurality of measurement data T3 stored in the measurement unit 15 may be acquired. In this case, if the measurement data T3 is stored in time series, it can be easily determined at which measurement position the data is acquired, and each measurement position can be associated with the measurement data T3.
  • Embodiment 2 FIG. In the first embodiment, the example in which the moving speed of the detector 1 is set constant has been described. However, the present invention is not limited to this, and the case where the moving speed of the detector 1 is set freely will be described. Conventionally, in order to make the sampling period of the CPU unit coincide with the measurement position, it is necessary to keep the moving speed of the detector constant. Therefore, for example, in the case where measurement is performed at regular intervals of 325 points every 0.5 inches, for example, a measurement time of about 2 hours is required to create map data.
  • the measurement data for each measurement position can be acquired without being influenced by the sampling period of the CPU unit 11, and thus the moving speed of the detector 1. Can be set freely. Therefore, an example will be described in the second embodiment.
  • FIG. 7 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation apparatus according to Embodiment 2 of the present invention.
  • FIG. 8 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the control device 10 includes a speed setting unit 16.
  • the speed setting unit 16 transmits the drive control data T1 to the power supply control unit 8 based on the drive control data T1 of the moving speed of the detector 1 set by the CPU unit 11.
  • the speed setting unit 16 since the moving speed can be changed as appropriate, the speed setting unit 16 is used to transmit the drive control data T1 to the power supply control unit 8 regardless of the operation cycle of the CPU unit 11. It has. However, when all the speeds are set in advance, it can be performed in the same manner as in the first embodiment.
  • the control device 10 of the in-core nuclear instrumentation device 100 of the second embodiment configured as described above will be described with reference to FIG. However, since the acquisition of the measurement data T3 of the detector 1 is the same as that of the first embodiment, this description is omitted.
  • the CPU unit 11 sets the moving speed of the detector 1 and transmits it to the speed setting unit 16 (step ST10 in FIG. 8).
  • the speed setting unit 16 generates drive control data T1 corresponding to the set moving speed of the detector 1 and transmits it to the power supply control unit 8 (step ST11 in FIG. 8).
  • the power supply control unit 8 controls the power supply power of the drive motor 40 based on the drive control data T1 (step ST12 in FIG. 8).
  • the drive motor 40 drives the drive cable 2 at the set moving speed (step ST13 in FIG. 8).
  • the drive cable 2 drives the detector 1 connected to the drive cable 2 in the nuclear reactor 3 at the moving speed set by the CPU unit 11 (step ST14 in FIG. 8).
  • the CPU has the same effect as that of the first embodiment, and the movement speed of the detector in the CPU unit. Can be set freely. Therefore, if the moving speed of the detector is set faster than the conventional moving speed, the map data can be created with high accuracy and with a reduced time. Further, the accuracy of the map data is not affected by the moving speed of the detector.
  • FIG. 9 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation apparatus according to Embodiment 3 of the present invention.
  • FIG. 10 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
  • the control device 10 includes a correction unit 17.
  • the correction unit 17 receives limit data T4 that is detected by the pull-out limit switch 5 and that detects that the drive cable 2 has reached the movement limit position.
  • the limit data T4 is an ON signal that is transmitted when the drive cable 2 passes through the pull-out limit switch 5.
  • the correction unit 17 receives the limit data T4 and creates a reset signal as a correction signal for correcting the position of the detector 1. That is, a correction signal is created that sets the time when the limit data T4 is received as the zero point position of the drive cable 2 distance. Then, the position detection unit 13 detects the position of the detector 1 by resetting the position of the detector 1 based on the correction signal of the correction unit 17 and correcting it to the zero point position.
  • the drive motor 40 drives the drive cable 2 according to the drive control data 1 of the CPU unit 11 to drive the detector 1 (step ST20 in FIG. 10).
  • the position measurement unit 41 transmits drive data T2 of the driver 4 (step ST21 in FIG. 10).
  • the extraction limit switch 5 transmits an ON signal as limit data T4 (step ST25 in FIG. 10). Therefore, the extraction limit switch 5 does not transmit data to the control device 10 until the detector 1 passes.
  • the position detector 13 converts the drive data T2 into position data of the detector 1 (step ST22 in FIG. 10).
  • the correction unit 17 creates a correction signal for resetting the position of the detector 1 (step ST23 in FIG. 10).
  • the position detector 13 is reset by this correction signal, and the position of the detector 1 is transmitted as zero (step ST24 in FIG. 10). As a result, the position of the detector 1 is reset and corrected every time the extraction limit switch 5 is passed, and the measurement position error is eliminated.
  • the zero point adjustment of the detector position can be performed as well as the same effect as the first embodiment. It is possible to automate, and it is possible to reduce the exposure of the operator when adjusting the zero point of the position of the detector. In addition, since the zero point adjustment of the position of the detector, that is, the position correction is performed, the detection data detection accuracy is further improved.

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Abstract

A control device (10) of an in-reactor nuclear instrumentation device (100) comprises a detector (1) which measures a neutron flux within a nuclear reactor (3), and a driver (4) which moves the detector (1) within the nuclear reactor (3). The control device (10) is provided with: a position setting unit (12) which sets the measuring position of the detector (1) within the nuclear reactor (3); a position detecting unit (13) which detects the position of the detector (1) within the nuclear reactor (3) from drive data from the driver (4); a comparing unit (14) which compares whether the measuring position and the position of the detector (1) coincide; a measuring unit (15) which receives measured data from the detector (1) and stores the measured data measured at the time that the positions are determined by the comparing unit (14) to coincide; and a CPU unit (11) which transmits drive control data for the driver (4).

Description

炉内核計装装置の制御装置Control device for in-core nuclear instrumentation
　この発明は、炉内核計装装置の原子炉内のデータの取得の精度が向上できる炉内核計装装置の制御装置に関するものである。 This invention relates to a control device for an in-core nuclear instrumentation device that can improve the accuracy of data acquisition in the reactor of the in-core nuclear instrumentation device.
　従来の炉内核計装装置は、原子炉内のマップデータを検出するものである。
　そして、炉内核計装装置の検出器は、原子炉内を移動しながら、原子炉内の中性子束の強度を測定するように構成されている。
その際、検出器の駆動速度は炉内核計装装置の制御装置により制御されている。
そして、制御装置のＣＰＵが、ＣＰＵのサンプリング周期に同期させて検出器の測定データを取得して、処理している。 A conventional in-core nuclear instrumentation device detects map data in a nuclear reactor.
The detector of the in-core nuclear instrumentation apparatus is configured to measure the intensity of the neutron flux in the reactor while moving in the reactor.
At this time, the driving speed of the detector is controlled by the control device of the in-core nuclear instrumentation device.
Then, the CPU of the control device acquires and processes the measurement data of the detector in synchronization with the sampling period of the CPU.
　よって、検出器の測定データはＣＰＵのサンプリング周期に依存する。
従来、制御装置がＣＰＵに依存することを解消するために、ＣＰＵは測定データをＣＰＵのサンプリング周期毎に比較する。そして、比較した測定データの差が、一定値を超えた際に、測定データを測定することにより対応している（例えば、特許文献１参照）。 Therefore, the measurement data of the detector depends on the sampling period of the CPU.
Conventionally, in order to eliminate the dependence of the control device on the CPU, the CPU compares the measurement data every sampling period of the CPU. And when the difference of the measured data compared exceeds a fixed value, it corresponds by measuring measurement data (for example, refer patent document 1).
特開平８－３２７７７９号公報JP-A-8-327779
　従来の炉内核計装装置の制御装置は、検出器の駆動速度が±１％程度揺らいでいる。
これにより、マップデータにおいて検出データを検出するべき位置と、検出データを検出した位置との間に誤差が生じることが不可避である。
よって、従来の制御装置によれば、検出器の駆動速度に誤差があることから、検出器の位置がＣＰＵのサンプリング周期において定間隔となることは少ないため、測定の精度の向上の効果は限定的であるという問題点があった。 In the control device of the conventional in-core instrumentation device, the driving speed of the detector fluctuates by about ± 1%.
Thereby, it is inevitable that an error occurs between the position where the detection data should be detected in the map data and the position where the detection data is detected.
Therefore, according to the conventional control device, since the detector driving speed has an error, the position of the detector is rarely a fixed interval in the CPU sampling period, so the effect of improving the measurement accuracy is limited. There was a problem of being correct.
　この発明は上記のような課題を解決するためになされたものであり、炉内核計装装置の原子炉内のデータの取得の精度が向上できる炉内核計装装置の制御装置を提供することを目的とする。 The present invention has been made to solve the above-described problems, and provides a control device for an in-core nuclear instrumentation device that can improve the accuracy of data acquisition in the reactor of the in-core nuclear instrumentation device. Objective.
　この発明の炉内核計装装置の制御装置は、
原子炉内の中性子束を測定する検出器と、
前記検出器を前記原子炉内において移動する駆動器とを有する炉内核計装装置の制御を行う前記炉内核計装装置の制御装置において、
前記検出器の前記原子炉内における測定位置を設定する位置設定部と、
前記駆動器の駆動データから前記検出器の前記原子炉内における位置を検出する位置検出部と、
前記位置設定部にて設定された前記測定位置と前記位置検出部にて検出された前記検出器の位置とが一致するか否かを比較する比較部と、
前記検出器の測定データを受信するとともに前記比較部にて一致したと判断した時点の前記検出器の測定データを保存する測定部と、
前記駆動器の駆動制御データを送信する制御部とを備えたものである。 The control device for the in-core nuclear instrumentation device of the present invention is:
A detector for measuring the neutron flux in the reactor;
In the control device of the in-core nuclear instrumentation device that controls the in-core nuclear instrumentation device having a driver that moves the detector in the nuclear reactor,
A position setting unit for setting a measurement position in the reactor of the detector;
A position detector for detecting the position of the detector in the reactor from the driving data of the driver;
A comparison unit for comparing whether or not the measurement position set by the position setting unit matches the position of the detector detected by the position detection unit;
A measurement unit that receives the measurement data of the detector and stores the measurement data of the detector at the time when it is determined that the comparison unit matches.
And a control unit that transmits drive control data of the driver.
　この発明の炉内核計装装置の制御装置によれば、
　炉内核計装装置の原子炉内のデータの取得の精度が向上できる。 According to the control device of the in-core nuclear instrumentation device of the present invention,
The accuracy of data acquisition in the nuclear reactor of the in-core nuclear instrumentation device can be improved.
この発明の実施の形態１の炉内核計装装置および炉内核計装装置の制御装置の構成を示す図である。It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus and in-core nuclear instrumentation apparatus of Embodiment 1 of this invention. 図１に示した炉内核計装装置の検出器の詳細を示す図である。It is a figure which shows the detail of the detector of the in-core nuclear instrumentation apparatus shown in FIG. 図１に示した炉内核計装装置と制御装置とのデータ流れを説明するための図である。It is a figure for demonstrating the data flow of the in-core nuclear instrumentation apparatus shown in FIG. 1, and a control apparatus. 図１に示した炉内核計装装置の制御装置の構成を示す図である。It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG. 図１に示した炉内核計装装置の制御装置の測定データの取得のタイミングを説明するための図である。It is a figure for demonstrating the timing of acquisition of the measurement data of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG. 図４に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。5 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG. この発明の実施の形態２の炉内核計装装置の制御装置の構成を示す図である。It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus of Embodiment 2 of this invention. 図７に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG. この発明の実施の形態３の炉内核計装装置の制御装置の構成を示す図である。It is a figure which shows the structure of the control apparatus of the in-core nuclear instrumentation apparatus of Embodiment 3 of this invention. 図９に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the control apparatus of the in-core nuclear instrumentation apparatus shown in FIG.
実施の形態１．
　以下、本願発明の実施の形態について説明する。
図１はこの発明の実施の形態１における炉内核計装装置および炉内核計装装置の制御装置の構成を示す図である。
図２は図１に示した炉内核計装装置のＡにて囲まれた部分の検出器の詳細を示す図である。
図３は図１に示した炉内核計装装置と制御装置と間のデータの流れを説明するための図である。 Embodiment 1 FIG.
Embodiments of the present invention will be described below.
1 is a diagram showing a configuration of an in-core nuclear instrumentation device and a control device for an in-core nuclear instrumentation device according to Embodiment 1 of the present invention.
FIG. 2 is a diagram showing details of the detector in a portion surrounded by A of the in-core nuclear instrumentation apparatus shown in FIG.
FIG. 3 is a diagram for explaining a data flow between the in-core nuclear instrumentation device and the control device shown in FIG.
　図４は図１に示した炉内核計装装置の制御装置の構成を示すブロック図である。
図５は図１に示した炉内核計装装置の制御装置の測定データの取得のタイミングを説明するための図である。図５において、縦軸の検出器の位置と、横軸の時間との関係を示した図である。
図６は図４に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。 FIG. 4 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation device shown in FIG.
FIG. 5 is a diagram for explaining the timing of acquisition of measurement data of the control device of the in-core nuclear instrumentation device shown in FIG. In FIG. 5, it is the figure which showed the relationship between the position of the detector of a vertical axis | shaft, and the time of a horizontal axis.
FIG. 6 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
　図１において、炉内核計装装置１００は、原子炉３が格納されている原子炉格納容器内に設置されているものである。
炉内核計装装置１００の制御装置１０は、原子炉３が格納されている原子炉格納容器外に設置されているものである。
制御装置１０は、通常、原子炉３から離れた箇所に設置されているものである。 In FIG. 1, an in-core nuclear instrumentation device 100 is installed in a nuclear reactor containment vessel in which a nuclear reactor 3 is stored.
The control device 10 of the in-core nuclear instrumentation device 100 is installed outside the reactor containment vessel in which the nuclear reactor 3 is stored.
The control device 10 is usually installed at a location away from the nuclear reactor 3.
　炉内核計装装置１００は、検出器１と、駆動器４と、引き抜きリミットスイッチ５と、安全リミットスイッチ６とを備えている。
検出器１は、原子炉３内の中性子束を測定するためのものである。
原子炉３内には、検出器１を挿入するための案内管９が複数形成されている。
各案内管９は、原子炉３内の複数位置において、軸方向に延在するようにそれぞれ形成されている。 The in-core nuclear instrumentation apparatus 100 includes a detector 1, a driver 4, an extraction limit switch 5, and a safety limit switch 6.
The detector 1 is for measuring the neutron flux in the nuclear reactor 3.
A plurality of guide tubes 9 for inserting the detector 1 are formed in the nuclear reactor 3.
Each guide tube 9 is formed so as to extend in the axial direction at a plurality of positions in the nuclear reactor 3.
　駆動器４は、検出器１を原子炉３内にて移動させるものである。
駆動器４は、駆動ケーブル２と、駆動電動機４０と、位置測定部４１とを備えている。
検出器１は、駆動ケーブル２の先端に接続されている。
駆動電動機４０は、駆動ケーブル２を巻き取りまたは巻き出して駆動ケーブル２を駆動するものである。
また、駆動電動機４０は、制御装置１０から送信される駆動制御データＴ１により駆動が制御されるものである。
また、駆動電動機４０は、駆動ケーブル２を介して検出器１の測定データＴ３を制御装置１０に送信する。 The driver 4 moves the detector 1 in the nuclear reactor 3.
The driver 4 includes a drive cable 2, a drive motor 40, and a position measurement unit 41.
The detector 1 is connected to the tip of the drive cable 2.
The drive motor 40 drives the drive cable 2 by winding or unwinding the drive cable 2.
The drive motor 40 is driven by the drive control data T <b> 1 transmitted from the control device 10.
Further, the drive motor 40 transmits the measurement data T3 of the detector 1 to the control device 10 via the drive cable 2.
　位置測定部４１は、駆動器４の駆動データＴ２を測定するものである。
具体的には、位置測定部４１は、駆動電動機４０の駆動により移動した駆動ケーブル２の移動長さを、電気信号にて変換して駆動データＴ２とするものである。
また、位置測定部４１は、この駆動データＴ２を制御装置１０に送信する。 The position measuring unit 41 measures drive data T2 of the driver 4.
Specifically, the position measuring unit 41 converts the moving length of the drive cable 2 that has been moved by driving the drive motor 40 into an electric signal to obtain drive data T2.
Further, the position measuring unit 41 transmits the drive data T2 to the control device 10.
　引き抜きリミットスイッチ５は、駆動ケーブル２の引き抜きの移動限度を設定するとともに、駆動ケーブル２が移動限度の位置に達したことを検出するリミット部である。
安全リミットスイッチ６は、駆動ケーブル２の引き抜きリミットスイッチ５より駆動電動機４０側に形成されている。そして、安全リミットスイッチ６は、駆動ケーブル２をこれ以上引き抜かないための安全スイッチである。
シールテーブル７は、駆動ケーブル２を貫通可能とし、原子炉３内側と、原子炉３外側とをシールするためのものである。 The pull-out limit switch 5 is a limit unit that sets a movement limit for pulling out the drive cable 2 and detects that the drive cable 2 has reached the movement limit position.
The safety limit switch 6 is formed closer to the drive motor 40 than the pull-out limit switch 5 of the drive cable 2. The safety limit switch 6 is a safety switch for preventing the drive cable 2 from being pulled out any more.
The seal table 7 can penetrate the drive cable 2 and seals the inside of the reactor 3 and the outside of the reactor 3.
　図４において、制御装置１０は、位置検出部１３と、位置設定部１２と、比較部１４と、測定部１５と、制御部としてのＣＰＵ部１１とにて構成されている。
ＣＰＵ部１１は、駆動器４を駆動するための駆動制御データＴ１を、駆動器４に送信する。
ここでは、ＣＰＵ部１１からの駆動制御データＴ１は、電源制御部８に送信される。
この電源制御部８は、駆動器４の駆動電動機４０に供給する電源電力を制御するものである。
そして、電源制御部８は、この駆動制御データＴ１に基づいて、電源電力を制御して駆動電動機４０に供給する。よって、駆動電動機４０は駆動制御データＴ１に基づいて駆動速度が制御される。 In FIG. 4, the control device 10 includes a position detection unit 13, a position setting unit 12, a comparison unit 14, a measurement unit 15, and a CPU unit 11 as a control unit.
The CPU unit 11 transmits drive control data T <b> 1 for driving the driver 4 to the driver 4.
Here, drive control data T <b> 1 from the CPU unit 11 is transmitted to the power supply control unit 8.
The power source control unit 8 controls power source power supplied to the drive motor 40 of the driver 4.
The power supply control unit 8 controls the power supply power based on the drive control data T1 and supplies it to the drive motor 40. Therefore, the drive speed of the drive motor 40 is controlled based on the drive control data T1.
　位置検出部１３は、位置測定部４１からの駆動データＴ２として電気信号を受信して、この電気信号を例えばｍｍ単位の位置信号に変換する。
そして、位置検出部１３は、駆動データＴ２から検出器１の原子炉３内の位置を検出するものである。 The position detection unit 13 receives an electrical signal as the drive data T2 from the position measurement unit 41, and converts this electrical signal into, for example, a position signal in units of mm.
And the position detection part 13 detects the position in the nuclear reactor 3 of the detector 1 from the drive data T2.
　位置設定部１２は、検出器１の原子炉３内における中性子束の測定位置を設定するものである。
この測定位置は、原子炉３内の１つの案内管９の長手方向に対して、例えば、０．５インチ毎に３２５点の等間隔にて決定されるものである。
そして、複数の案内管９に対して、それぞれ測定位置が設定される。
原子炉３内の中性子束のマップデータは、これら測定位置にて測定データを得ることにより取得できる。
また、位置設定部１２にて設定された測定位置は、ＣＰＵ部１１に送信する。 The position setting unit 12 sets the measurement position of the neutron flux in the reactor 3 of the detector 1.
This measurement position is determined at regular intervals of 325 points, for example, every 0.5 inch with respect to the longitudinal direction of one guide tube 9 in the nuclear reactor 3.
And a measurement position is set to each of the plurality of guide tubes 9.
The map data of the neutron flux in the nuclear reactor 3 can be obtained by obtaining measurement data at these measurement positions.
Further, the measurement position set by the position setting unit 12 is transmitted to the CPU unit 11.
　比較部１４は、位置設定部１２にて設定した測定位置と、位置検出部１３にて検出した検出器１の位置とを比較し、一致しているか否かを検出する。
測定部１５は、駆動電動機４０からの測定データＴ３として、例えば検出器１の電流信号を受信する。
そして、測定部１５は、比較部１４が一致していることを検出すると、この比較部１４の信号を受信して、その時点の検出器１の測定データＴ３を保存する。
よって、測定部１５は、測定データＴ３を保存するためのメモリを備えている。
ＣＰＵ部１１は、測定部１５に保存されている測定データＴ３を、サンプリング周期にて読み出し、位置設定部１２にて設定された測定位置と関連付けて、炉内核計装装置１００のマップデータを作成する。 The comparison unit 14 compares the measurement position set by the position setting unit 12 with the position of the detector 1 detected by the position detection unit 13 and detects whether or not they match.
The measurement unit 15 receives, for example, a current signal from the detector 1 as measurement data T3 from the drive motor 40.
And if the measurement part 15 detects that the comparison part 14 corresponds, the signal of this comparison part 14 will be received and the measurement data T3 of the detector 1 at that time will be preserve | saved.
Therefore, the measurement unit 15 includes a memory for storing the measurement data T3.
The CPU unit 11 reads out the measurement data T3 stored in the measurement unit 15 at a sampling period and creates map data of the in-core nuclear instrumentation apparatus 100 in association with the measurement position set by the position setting unit 12. To do.
　次に上記のように構成された実施の形態１の炉内核計装装置の制御装置の動作について図６に基づいて説明する。
まず、位置設定部１２が、検出器１の原子炉３内での中性子束の検出位置を設定する（図６のステップＳＴ１）。
そして、原子炉３内のいずれの位置が検出位置として設定されたかは、ＣＰＵ部１１に送信される。
また他の方法としては、ＣＰＵ部１１が、検出器１の原子炉３内での中性子束の検出位置を設定して、その検出位置を位置設定部１２に送信して保存することが考えられる。
いずれの場合も、ＣＰＵ部１１の動作に左右されることなく、測定前に検出位置が設定されるものである。 Next, the operation of the control apparatus for the in-core nuclear instrumentation apparatus of the first embodiment configured as described above will be described with reference to FIG.
First, the position setting unit 12 sets the detection position of the neutron flux in the reactor 3 of the detector 1 (step ST1 in FIG. 6).
Then, which position in the nuclear reactor 3 is set as the detection position is transmitted to the CPU unit 11.
As another method, it is conceivable that the CPU unit 11 sets the detection position of the neutron flux in the reactor 3 of the detector 1 and transmits the detection position to the position setting unit 12 for storage. .
In either case, the detection position is set before measurement without being influenced by the operation of the CPU unit 11.
　次に、比較部１４は、位置検出部１３にて検出された検出器１の位置と、位置設定部１２にて設定された測定位置とが一致しているか不一致かを比較して判定する（図６のステップＳＴ２）。
そして、不一致の場合には、再び、ステップＳＴ２に戻る。よって、比較部１４はＣＰＵ部１１の動作に左右されることなく比較の動作を行うことができる。
また、一致の場合には、測定部１５はその時点における測定データＴ３を保存する（図６のステップＳＴ３）。 Next, the comparison unit 14 compares and determines whether the position of the detector 1 detected by the position detection unit 13 and the measurement position set by the position setting unit 12 match or do not match ( Step ST2 in FIG. 6).
If they do not match, the process returns again to step ST2. Therefore, the comparison unit 14 can perform the comparison operation without being influenced by the operation of the CPU unit 11.
If they match, the measurement unit 15 stores the measurement data T3 at that time (step ST3 in FIG. 6).
　次に、ＣＰＵ部１１は、サンプリング周期にて測定部１５に保存された測定データＴ３を取得する。
そして、先に取得している位置設定部１２の検出位置と、測定データＴ３とを関連付けて保存し、原子炉３内のマップデータを作成する（図６のステップＳＴ４）。 Next, the CPU unit 11 acquires measurement data T3 stored in the measurement unit 15 at the sampling period.
Then, the previously acquired detection position of the position setting unit 12 and the measurement data T3 are stored in association with each other, and map data in the nuclear reactor 3 is created (step ST4 in FIG. 6).
　次に、測定される測定データＴ３の保存されるタイミングと、ＣＰＵ部１１のサンプリング周期にて測定データＴ３を保存するタイミングとの関係を、図５に基づいて説明する。尚、検出器１は、ＣＰＵ部１１の駆動制御データＴ１により、一定の移動速度にて移動するように制御されている例を示すものである。 Next, the relationship between the timing at which the measured measurement data T3 is stored and the timing at which the measurement data T3 is stored at the sampling period of the CPU 11 will be described with reference to FIG. The detector 1 shows an example in which the detector 1 is controlled to move at a constant moving speed by the drive control data T1 of the CPU unit 11.
　まず、図５に示すように、縦軸には、検出器１の上限位置、すなわち、案内管９の最上部の位置からの距離を表している。
横軸には、検出器１の上限位置から移動した時間を表している。
そして、縦軸のＨ１、Ｈ２、Ｈ３、Ｈ４、Ｈ５は、位置設定部１２にて設定された測定位置を示すものである。
また、横軸のＪ１～Ｊ８は、ＣＰＵ部１１のサンプリング周期を示すものである。ＣＰＵ部１１のサンプリング周期とは、一定の間隔、ＣＰＵ部１１のクロックの周期により決定されているものである。 First, as shown in FIG. 5, the vertical axis represents the distance from the upper limit position of the detector 1, that is, the uppermost position of the guide tube 9.
The horizontal axis represents the time of movement from the upper limit position of the detector 1.
The vertical axes H1, H2, H3, H4, and H5 indicate the measurement positions set by the position setting unit 12.
Also, J1 to J8 on the horizontal axis indicate the sampling period of the CPU unit 11. The sampling period of the CPU unit 11 is determined by a constant interval and a clock period of the CPU unit 11.
　検出器１の移動速度は、ＣＰＵ部１１により一定に制御されているものである。しかしながら、駆動電動機４０により駆動ケーブル２を巻回しながら検出器１は移動しているため、図５から明らかなように、時間に対して正確な正比例ではなく、揺らぎが生じるものである。 The moving speed of the detector 1 is controlled to be constant by the CPU unit 11. However, since the detector 1 is moving while the drive cable 2 is wound by the drive motor 40, as is clear from FIG. 5, the fluctuation is not an exact direct proportion to time.
　そして、検出器１は原子炉３内の上限位置から移動を開始して、測定が行われていく。
　まず、ＣＰＵ部１１のサンプリング周期のＪ１の時点では、検出器１の位置がＨ１Ａである。
このため、比較部１４は、測定位置Ｈ１と、検出器１の位置Ｈ１Ａとが一致していないと判断する。
この場合、測定部１５は、測定データＴ３を保存しない。
そして、ＣＰＵ部１１は、測定データＴ３を取得しない。 The detector 1 starts moving from the upper limit position in the nuclear reactor 3 and measurement is performed.
First, at the time point J1 of the sampling period of the CPU unit 11, the position of the detector 1 is H1A.
For this reason, the comparison unit 14 determines that the measurement position H1 and the position H1A of the detector 1 do not match.
In this case, the measurement unit 15 does not save the measurement data T3.
And CPU part 11 does not acquire measurement data T3.
　次に、ＣＰＵ部１１のサンプリング周期のＪ２の時点では、検出器１の位置がＨ１である。
このため、比較部１４は、測定位置Ｈ１と、検出器１の位置Ｈ１とが一致していると判断する。
この場合、測定部１５は、この時点の検出器１の測定データＴ３を保存する。
そして、ＣＰＵ部１１は、この測定部１５が保存した測定データＴ３を取得する。
そして、ＣＰＵ部１１は、この測定データＴ３が、１つ目の測定位置Ｈ１のデータであると関連付けて保存する。 Next, at the time point J2 of the sampling period of the CPU unit 11, the position of the detector 1 is H1.
For this reason, the comparison unit 14 determines that the measurement position H1 matches the position H1 of the detector 1.
In this case, the measurement unit 15 stores the measurement data T3 of the detector 1 at this time.
Then, the CPU unit 11 acquires measurement data T3 stored by the measurement unit 15.
Then, the CPU unit 11 stores the measurement data T3 in association with the data of the first measurement position H1.
　次に、ＣＰＵ部１１のサンプリング周期のＪ３の時点では、上記に示したＪ２の時点と同様に、ＣＰＵ部１１は、測定データＴ３が２つ目の測定位置Ｈ２のデータであると関連付けて保存する。 Next, at the time point J3 of the sampling period of the CPU unit 11, similarly to the time point J2 described above, the CPU unit 11 stores the measurement data T3 in association with the data at the second measurement position H2. To do.
　次に、ＣＰＵ部１１のサンプリング周期のＪ４の時点では、検出器１の位置がＨ３Ａである。
このため、比較部１４は、測定位置Ｈ３と、検出器１の位置Ｈ３Ａとが一致していないと判断する。
この場合、測定部１５は、測定データＴ３を保存しない。
そして、ＣＰＵ部１１は、測定データＴ３を取得しない。
次に、ＣＰＵ部１１のサンプリング周期のＪ５の時点では、検出器１の位置がＨ３Ｂである。
よって、ＣＰＵ部１１は、上記に示したＪ４の時点と同様に、測定データＴ３を取得しない。 Next, at the time point J4 of the sampling period of the CPU unit 11, the position of the detector 1 is H3A.
For this reason, the comparison unit 14 determines that the measurement position H3 and the position H3A of the detector 1 do not match.
In this case, the measurement unit 15 does not save the measurement data T3.
And CPU part 11 does not acquire measurement data T3.
Next, at the time J5 of the sampling period of the CPU unit 11, the position of the detector 1 is H3B.
Therefore, the CPU unit 11 does not acquire the measurement data T3, similar to the time point J4 described above.
　次に、Ｊ６Ａの時点では、ＣＰＵ部１１のサンプリング周期ではないものの、検出器１の位置がＨ３となる。
このため、比較部１４は、測定位置Ｈ３と、検出器１の位置Ｈ３とが一致していると判断する。
よって、測定部１５は、この時点の検出器１の測定データＴ３を保存する。 Next, at the time of J6A, although it is not the sampling period of the CPU unit 11, the position of the detector 1 becomes H3.
For this reason, the comparison unit 14 determines that the measurement position H3 matches the position H3 of the detector 1.
Therefore, the measurement part 15 preserve | saves the measurement data T3 of the detector 1 at this time.
　次に、ＣＰＵ部１１のサンプリング周期のＪ６の時点では、検出器１の位置がＨ４Ａである。
このため、比較部１４は、測定位置Ｈ４と、検出器１の位置Ｈ４Ａとが一致していないと判断する。
この場合、測定部１５は、測定データＴ３を保存しない。
しかしながら、ＣＰＵ部１１は、以前に測定部１５に保存されている測定データＴ３を取得する。
そして、ＣＰＵ部１１は、この測定データＴ３が、３つ目の測定位置Ｈ３のデータとして関連付け保存する。 Next, at the time J6 of the sampling period of the CPU unit 11, the position of the detector 1 is H4A.
For this reason, the comparison unit 14 determines that the measurement position H4 and the position H4A of the detector 1 do not match.
In this case, the measurement unit 15 does not save the measurement data T3.
However, the CPU unit 11 acquires measurement data T3 previously stored in the measurement unit 15.
Then, the CPU unit 11 associates and saves the measurement data T3 as data of the third measurement position H3.
　次に、Ｊ７Ａの時点では、ＣＰＵ部１１のサンプリング周期ではないものの、検出器１の位置がＨ４となる。
このため、比較部１４は、測定位置Ｈ４と、検出器１の位置Ｈ４とが一致していると判断する。
よって、測定部１５は、この時点の検出器１の測定データＴ３を保存する。 Next, at the time of J7A, although it is not the sampling period of the CPU unit 11, the position of the detector 1 becomes H4.
For this reason, the comparison unit 14 determines that the measurement position H4 matches the position H4 of the detector 1.
Therefore, the measurement part 15 preserve | saves the measurement data T3 of the detector 1 at this time.
　次に、ＣＰＵ部１１のサンプリング周期のＪ７の時点では、検出器１の位置がＨ５Ａである。
この場合、ＣＰＵ部１１は、上記に示したＪ６の時点と同様に、以前に保存されている測定データＴ３を取得する。
そして、ＣＰＵ部１１は、この測定データＴ３が、４つ目の測定位置Ｈ４のデータとして関連付け保存する。 Next, at the time point J7 of the sampling period of the CPU unit 11, the position of the detector 1 is H5A.
In this case, the CPU unit 11 acquires the previously stored measurement data T3 in the same manner as the time point J6 described above.
Then, the CPU unit 11 stores the measurement data T3 in association with the data of the fourth measurement position H4.
　以後、上記に示した動作と同様の動作を行い、ＣＰＵ部１１のサンプリング周期のＪ８の時点では、検出器１の位置がＨ５Ｂであるので、測定データＴ３は取得しない。次の、ＣＰＵ部１１のサンプリング周期でないＪ９Ａの時点では、検出器１の位置がＨ５であり、測定部１５に検出器１の測定データＴ３が保存される。 Thereafter, the same operation as described above is performed, and the measurement data T3 is not acquired because the position of the detector 1 is H5B at the time point J8 of the sampling period of the CPU unit 11. At the next time J9A, which is not the sampling period of the CPU unit 11, the position of the detector 1 is H5, and the measurement data T3 of the detector 1 is stored in the measurement unit 15.
　上記のように構成された実施の形態１の炉内核計装装置の制御装置によれば、ＣＰＵ部のサンプリング周期に左右されることなく、測定位置毎の検出器の測定データを保存することができるため、精度に優れたデータを取得することができる。 According to the control device of the in-core nuclear instrumentation apparatus of the first embodiment configured as described above, the measurement data of the detector for each measurement position can be stored without being influenced by the sampling period of the CPU unit. Therefore, data with excellent accuracy can be acquired.
　さらに、検出器の移動速度に左右されることなく、測定位置毎の検出器の測定データを保存することができるため、精度に優れたデータを取得することができる。 Furthermore, since the measurement data of the detector at each measurement position can be stored without being affected by the moving speed of the detector, it is possible to acquire data with excellent accuracy.
　また、ＣＰＵ部は、サンプリング周期毎に、測定部から測定データを取得することができるため、精度に優れたマップデータを作成することができる。 In addition, since the CPU unit can acquire measurement data from the measurement unit at each sampling period, it can create map data with excellent accuracy.
　尚、上記実施の形態１においては、測定部１５に保存された測定データＴ３をＣＰＵ部１１のサンプリング周期にて取得する例を示したが、これに限られることはなく、全ての測定が終了した後に、測定部１５に保存された複数の測定データＴ３を取得するようにしてよい。その場合、測定データＴ３を時系列に保存すれば、いずれの測定位置にて取得されたデータであるかは容易に判断でき、各測定位置と測定データＴ３とを関連付けることができる。 In the first embodiment, the example in which the measurement data T3 stored in the measurement unit 15 is acquired at the sampling period of the CPU unit 11 is shown. However, the present invention is not limited to this, and all measurements are completed. After that, a plurality of measurement data T3 stored in the measurement unit 15 may be acquired. In this case, if the measurement data T3 is stored in time series, it can be easily determined at which measurement position the data is acquired, and each measurement position can be associated with the measurement data T3.
実施の形態２．
　上記実施の形態１では、検出器１の移動速度を一定に設定する例を示したが、これに限られることはなく、検出器１の移動速度を自由に設定する場合について説明する。従来、ＣＰＵ部のサンプリング周期と、測定位置とを一致させるためには、検出器の移動速度を一定に保つ必要があった。よって、通常、例えば、０．５インチ毎に３２５点の等間隔にて測定する場合、マップデータを作成するためには２時間程度の測定時間が必要であった。 Embodiment 2. FIG.
In the first embodiment, the example in which the moving speed of the detector 1 is set constant has been described. However, the present invention is not limited to this, and the case where the moving speed of the detector 1 is set freely will be described. Conventionally, in order to make the sampling period of the CPU unit coincide with the measurement position, it is necessary to keep the moving speed of the detector constant. Therefore, for example, in the case where measurement is performed at regular intervals of 325 points every 0.5 inches, for example, a measurement time of about 2 hours is required to create map data.
　上記実施の形態１に示したように、本願発明によれば、ＣＰＵ部１１のサンプリング周期に左右されることなく、測定位置毎の測定データを取得することができるため、検出器１の移動速度を自由に設定することが可能となる。よって、本実施の形態２において、その例について説明する。 As shown in the first embodiment, according to the present invention, the measurement data for each measurement position can be acquired without being influenced by the sampling period of the CPU unit 11, and thus the moving speed of the detector 1. Can be set freely. Therefore, an example will be described in the second embodiment.
　図７はこの発明の実施の形態２の炉内核計装装置の制御装置の構成を示すブロック図である。
図８は図７に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。
図において、上記実施の形態１と同様の部分は同一符号を付して説明を省略する。
制御装置１０は、速度設定部１６を備える。 FIG. 7 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation apparatus according to Embodiment 2 of the present invention.
FIG. 8 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
The control device 10 includes a speed setting unit 16.
　速度設定部１６は、ＣＰＵ部１１が設定した検出器１の移動速度の駆動制御データＴ１に基づいて、電源制御部８に駆動制御データＴ１を送信するものである。尚、本実施の形態２においては、移動速度を適宜変更することが可能なため、ＣＰＵ部１１の動作周期によらず駆動制御データＴ１を電源制御部８に送信するために、速度設定部１６を備えている。但し、あらかじめ全ての速度が設定されている場合は、上記実施の形態１と同様に行うことも可能である。 The speed setting unit 16 transmits the drive control data T1 to the power supply control unit 8 based on the drive control data T1 of the moving speed of the detector 1 set by the CPU unit 11. In the second embodiment, since the moving speed can be changed as appropriate, the speed setting unit 16 is used to transmit the drive control data T1 to the power supply control unit 8 regardless of the operation cycle of the CPU unit 11. It has. However, when all the speeds are set in advance, it can be performed in the same manner as in the first embodiment.
　次に、上記のように構成された実施の形態２の炉内核計装装置１００の制御装置１０の動作について図８に基づいて説明する。
但し、検出器１の測定データＴ３の取得については、上記実施の形態１と同様であるため、この説明は省略する。
　まず、ＣＰＵ部１１においては検出器１の移動速度を設定して、速度設定部１６に送信する（図８のステップＳＴ１０）。 Next, the operation of the control device 10 of the in-core nuclear instrumentation device 100 of the second embodiment configured as described above will be described with reference to FIG.
However, since the acquisition of the measurement data T3 of the detector 1 is the same as that of the first embodiment, this description is omitted.
First, the CPU unit 11 sets the moving speed of the detector 1 and transmits it to the speed setting unit 16 (step ST10 in FIG. 8).
　次に、速度設定部１６において、設定された検出器１の移動速度に対応した駆動制御データＴ１を生成して、電源制御部８に送信する（図８のステップＳＴ１１）。
次に、電源制御部８は、駆動制御データＴ１に基づいて駆動電動機４０の電源電力を制御する（図８のステップＳＴ１２）。
次に、駆動電動機４０は、設定された移動速度にて駆動ケーブル２を駆動する（図８のステップＳＴ１３）。
次に、駆動ケーブル２は、駆動ケーブル２に接続された検出器１を原子炉３内にて、ＣＰＵ部１１にて設定された移動速度にて駆動する（図８のステップＳＴ１４）。 Next, the speed setting unit 16 generates drive control data T1 corresponding to the set moving speed of the detector 1 and transmits it to the power supply control unit 8 (step ST11 in FIG. 8).
Next, the power supply control unit 8 controls the power supply power of the drive motor 40 based on the drive control data T1 (step ST12 in FIG. 8).
Next, the drive motor 40 drives the drive cable 2 at the set moving speed (step ST13 in FIG. 8).
Next, the drive cable 2 drives the detector 1 connected to the drive cable 2 in the nuclear reactor 3 at the moving speed set by the CPU unit 11 (step ST14 in FIG. 8).
　上記のように構成された実施の形態２の炉内核計装装置の制御装置によれば、上記実施の形態１と同様の効果を奏するのはもちろんのこと、ＣＰＵ部にて検出器の移動速度を自由に設定することが可能となる。よって、検出器の移動速度を従来の移動速度より早く設定すれば、マップデータを精度よくかつ時間を短縮して作成することができる。また、検出器の移動速度によって、マップデータの精度が左右されることはない。 According to the control device for the in-core nuclear instrumentation apparatus of the second embodiment configured as described above, the CPU has the same effect as that of the first embodiment, and the movement speed of the detector in the CPU unit. Can be set freely. Therefore, if the moving speed of the detector is set faster than the conventional moving speed, the map data can be created with high accuracy and with a reduced time. Further, the accuracy of the map data is not affected by the moving speed of the detector.
実施の形態３．
　上記各実施の形態では、特に示していないが、本実施の形態３においては、検出器１の位置を更に正確に判断する例について説明する。
図９はこの発明の実施の形態３の炉内核計装装置の制御装置の構成を示すブロック図である。
図１０は図９に示した炉内核計装装置の制御装置の動作を説明するためのフローチャートである。 Embodiment 3 FIG.
Although not particularly shown in each of the above embodiments, in Embodiment 3, an example in which the position of the detector 1 is determined more accurately will be described.
FIG. 9 is a block diagram showing the configuration of the control device of the in-core nuclear instrumentation apparatus according to Embodiment 3 of the present invention.
FIG. 10 is a flowchart for explaining the operation of the control device of the in-core nuclear instrumentation device shown in FIG.
　図において、上記各実施の形態と同様の部分は同一符号を付して説明を省略する。
制御装置１０は補正部１７を備える。
補正部１７は、引き抜きリミットスイッチ５にて検出している、駆動ケーブル２が移動限度の位置に達したことを検出するリミットデータＴ４を受信する。
例えば、リミットデータＴ４は、引き抜きリミットスイッチ５を駆動ケーブル２が通過した時点に発信されるＯＮ信号である。 In the figure, the same parts as those in the above embodiments are denoted by the same reference numerals, and description thereof is omitted.
The control device 10 includes a correction unit 17.
The correction unit 17 receives limit data T4 that is detected by the pull-out limit switch 5 and that detects that the drive cable 2 has reached the movement limit position.
For example, the limit data T4 is an ON signal that is transmitted when the drive cable 2 passes through the pull-out limit switch 5.
　そして、補正部１７は、リミットデータＴ４を受信して検出器１の位置を補正する補正信号としてのリセット信号を作成する。すなわち、リミットデータＴ４を受信した時点を、駆動ケーブル２の距離がゼロ点位置として設定する補正信号を作成する。
そして、位置検出部１３は、補正部１７の補正信号に基づいて検出器１の位置をリセットしてゼロ点位置に補正して、検出器１の位置を検出する。 Then, the correction unit 17 receives the limit data T4 and creates a reset signal as a correction signal for correcting the position of the detector 1. That is, a correction signal is created that sets the time when the limit data T4 is received as the zero point position of the drive cable 2 distance.
Then, the position detection unit 13 detects the position of the detector 1 by resetting the position of the detector 1 based on the correction signal of the correction unit 17 and correcting it to the zero point position.
　次に、上記のように構成された実施の形態３の炉内核計装装置１００の制御装置１０の動作について図１０に基づいて説明する。
但し、検出器１の測定データの取得については、上記実施の形態２と同様であるため、この説明は省略する。
　まず、ＣＰＵ部１１の駆動制御データ１により、駆動電動機４０が駆動ケーブル２を駆動し、検出器１を駆動する（図１０のステップＳＴ２０）。 Next, the operation of the control device 10 of the in-core nuclear instrumentation device 100 of the third embodiment configured as described above will be described with reference to FIG.
However, since the acquisition of the measurement data of the detector 1 is the same as that of the second embodiment, this description is omitted.
First, the drive motor 40 drives the drive cable 2 according to the drive control data 1 of the CPU unit 11 to drive the detector 1 (step ST20 in FIG. 10).
　次に、位置測定部４１が駆動器４の駆動データＴ２を送信する（図１０のステップＳＴ２１）。
これと同時に、引き抜きリミットスイッチ５は検出器１が通過したときに、引き抜きリミットスイッチ５はＯＮ信号をリミットデータＴ４として発信する（図１０のステップＳＴ２５）。よって、引き抜きリミットスイッチ５は、検出器１が通過するまでは、制御装置１０に対してデータを発信することはない。 Next, the position measurement unit 41 transmits drive data T2 of the driver 4 (step ST21 in FIG. 10).
At the same time, when the detector 1 passes, the extraction limit switch 5 transmits an ON signal as limit data T4 (step ST25 in FIG. 10). Therefore, the extraction limit switch 5 does not transmit data to the control device 10 until the detector 1 passes.
　次に、位置検出部１３が駆動データＴ２を検出器１の位置データに変換する（図１０のステップＳＴ２２）。
次に、ステップＳＴ２５においてリミットデータＴ４が発信されると、補正部１７が検出器１の位置をリセットするための補正信号を作成する（図１０のステップＳＴ２３）。
次に、位置検出部１３はこの補正信号によりリセットされ、検出器１の位置がゼロとして送信される（図１０のステップＳＴ２４）。これにより、検出器１の位置は、引き抜きリミットスイッチ５を通過するたびにリセットされて補正され、測定位置の誤差が解消される。 Next, the position detector 13 converts the drive data T2 into position data of the detector 1 (step ST22 in FIG. 10).
Next, when the limit data T4 is transmitted in step ST25, the correction unit 17 creates a correction signal for resetting the position of the detector 1 (step ST23 in FIG. 10).
Next, the position detector 13 is reset by this correction signal, and the position of the detector 1 is transmitted as zero (step ST24 in FIG. 10). As a result, the position of the detector 1 is reset and corrected every time the extraction limit switch 5 is passed, and the measurement position error is eliminated.
　上記のように構成された実施の形態３の炉内核計装装置の制御装置によれば、上記実施の形態１と同様の効果を奏するのはもちろんのこと、検出器の位置のゼロ点調整を自動化することが可能であり、検出器の位置のゼロ点調整時の作業者の被ばくを低減することが可能である。また、検出器の位置のゼロ点調整すなわち位置の補正を行っているため、検出データの検出の精度がさらに向上する。 According to the control device of the in-core nuclear instrumentation apparatus of the third embodiment configured as described above, the zero point adjustment of the detector position can be performed as well as the same effect as the first embodiment. It is possible to automate, and it is possible to reduce the exposure of the operator when adjusting the zero point of the position of the detector. In addition, since the zero point adjustment of the position of the detector, that is, the position correction is performed, the detection data detection accuracy is further improved.
　尚、本発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。 It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

Claims (4)

  1. 原子炉内の中性子束を測定する検出器と、
    前記検出器を前記原子炉内において移動する駆動器とを有する炉内核計装装置の制御を行う前記炉内核計装装置の制御装置において、
    前記検出器の前記原子炉内における測定位置を設定する位置設定部と、
    前記駆動器の駆動データから前記検出器の前記原子炉内における位置を検出する位置検出部と、
    前記位置設定部にて設定された前記測定位置と前記位置検出部にて検出された前記検出器の位置とが一致するか否かを比較する比較部と、
    前記検出器の測定データを受信するとともに前記比較部にて一致したと判断した時点の前記検出器の測定データを保存する測定部と、
    前記駆動器の駆動制御データを送信する制御部とを備えた炉内核計装装置の制御装置。     A detector for measuring the neutron flux in the reactor;
    In the control device of the in-core nuclear instrumentation device that controls the in-core nuclear instrumentation device having a driver that moves the detector in the nuclear reactor,
    A position setting unit for setting a measurement position in the reactor of the detector;
    A position detector for detecting the position of the detector in the reactor from the driving data of the driver;
    A comparison unit for comparing whether or not the measurement position set by the position setting unit matches the position of the detector detected by the position detection unit;
    A measurement unit that receives the measurement data of the detector and stores the measurement data of the detector at the time when it is determined that the comparison unit matches.
    A control device for an in-core nuclear instrumentation apparatus, comprising: a control unit that transmits drive control data of the driver.
  2. 前記制御部は、前記測定部に保存された前記測定データをサンプリング周期にて読み出す請求項１に記載の炉内核計装装置の制御装置。 The said control part is a control apparatus of the nuclear instrumentation apparatus in a reactor of Claim 1 which reads the said measurement data preserve | saved at the said measurement part with a sampling period.
  3. 前記制御部は、前記検出器の移動速度を設定する前記駆動制御データを送信する請求項１または請求項２に記載の炉内核計装装置の制御装置。 The control device for an in-core nuclear instrumentation apparatus according to claim 1 or 2, wherein the control unit transmits the drive control data for setting a moving speed of the detector.
  4. 前記炉内核計装装置は、前記検出器の移動限度を検出するリミット部を有し、
    前記リミット部のリミットデータを受信して前記検出器の位置を補正する補正信号を作成する補正部を備え、
    前記位置検出部は、前記補正部の補正信号に基づいて前記検出器の位置を補正して検出する請求項１から請求項３のいずれか１項に記載の炉内核計装装置の制御装置。     The in-core nuclear instrumentation apparatus has a limit unit for detecting a movement limit of the detector,
    A correction unit that receives limit data of the limit unit and generates a correction signal for correcting the position of the detector;
    4. The control device for an in-core nuclear instrumentation device according to claim 1, wherein the position detection unit corrects and detects the position of the detector based on a correction signal of the correction unit. 5.
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JPH01297598A (en) * 1988-05-26 1989-11-30 Mitsubishi Electric Corp Upper and lower limit position setter of detector for inside of reactor core
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JP2006145417A (en) * 2004-11-22 2006-06-08 Toshiba Corp Moving type in-reactor neutron measuring instrument, and method therefor
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