KR20090009671U - .Pretrip Alarm Fixing Part For Auxliary Trip Fixing Part of Nuclear Core Protection System. - Google Patents

.Pretrip Alarm Fixing Part For Auxliary Trip Fixing Part of Nuclear Core Protection System. Download PDF

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KR20090009671U
KR20090009671U KR2020080003741U KR20080003741U KR20090009671U KR 20090009671 U KR20090009671 U KR 20090009671U KR 2020080003741 U KR2020080003741 U KR 2020080003741U KR 20080003741 U KR20080003741 U KR 20080003741U KR 20090009671 U KR20090009671 U KR 20090009671U
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setting unit
stop
alarm
preliminary
lower limit
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Korean (ko)
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백승엽
인왕기
배종식
김승민
조창호
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두산중공업 주식회사
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/04—Safety arrangements
    • G21D3/06—Safety arrangements responsive to faults within the plant
    • 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
    • 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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  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

본 고안은 원자로노심보호연산기계통 보조정지설정부의 상,하한 설정치와 정상운정설정부의 상,하한 설정치사이에 상,하한 설정치를 설정한 예비정지설정경보부를 더 구비하여 원자로 운전시 불필요한 원자로 정지를 발생시키는 보조정지설정부에 대해 예비정지설정경보부를 설치하여 원자로운전원에게 예비경보를 인지하게 하여 원자로운전원이 적절한 조치를 취할 수 있도록 하여서 상기 보조정지설정부에 의해 원자로의 보조정지를 방지하여 원자로 운전의 효율을 높일 수 있는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통에 관한 것이다.The present invention further includes a preliminary stop setting alarm unit which sets an upper and a lower limit value between the upper and lower set points of the reactor core protection operation machinery auxiliary stop setting unit and the upper and lower set points of the normal operation setting unit. A preliminary stop setting alarm unit is provided for the auxiliary stop setting unit to allow the atomic power source to recognize the preliminary alarm so that the atomic power source can take appropriate measures to prevent the secondary stop of the reactor by the auxiliary stop setting unit. It relates to a reactor core protection operation machinery having an auxiliary stop setting unit and a preliminary stop alarm setting unit that can increase the efficiency.

본 고안은 핵비등이탈율(DNBR:Departure Nuclear Boliing Ratio)초과 및 국부출력밀도(LPD:Local Power Density)의 제한값 초과, 가변과출력 이외에 원자로 노심의 안전성을 저해하는 변수들에 의해 원자로가 정지될 수 있도록 상,하한 설정치를 갖는 보조정지설정부(10, 10')와 정상운전에 필요한 상,하한 설정치를 갖는 정상운전설정부(30. 30')를 구비한 원자로노심보호연산기계통에 있어서,The present invention is designed to suspend the reactor by variables beyond the DNBR (Departure Nuclear Boliing Ratio) and the limit of the Local Power Density (LPD), variable overpower, and other factors that impair the safety of the reactor core. In the nuclear reactor core protection operation machine having the auxiliary stop setting unit (10, 10 ') having the upper and lower limit set values and the normal operation setting unit (30.30') having the upper and lower limit set values necessary for the normal operation,

상기 원자로노심보호연산기계통의 상기 보조정지설정부(10, 10') 상,하한 설정치와, 상기 정상운전설정부(30, 30')의 상,하한 설정치 사이에 상,하한 설정치를 설정한 예비정지경보설정부(20, 20')를 더 구비한 것을 특징으로 하는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통을 제공하고자 하는 것이다.A preliminary stop in which an upper and lower limit set value is set between the upper and lower limit set values of the auxiliary stop setters 10 and 10 'of the nuclear reactor core protection and operation machine cylinder and the upper and lower limit set values of the normal operation setters 30 and 30'. It is an object of the present invention to provide a nuclear reactor core protection operation machine having an auxiliary stop setting unit and a preliminary stop alarm setting unit further comprising an alarm setting unit (20, 20 ').

원자로노심보호연산기계통, 핵비등이탈율, 국부밀도제한값 초과, 가변과출력, 보조정지설정부, 예비정지경보설정부, 정상운전설정부 Nuclear Boiler Breakout Rate, Local Density Limit Value, Variable Overpower, Auxiliary Stop Setting Section, Preliminary Stop Alarm Setting Section, Normal Operation Setting Section

Description

보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통.{Pretrip Alarm Fixing Part For Auxliary Trip Fixing Part of Nuclear Core Protection System.}Nuclear Core Protection System. (Pretrip Alarm Fixing Part For Auxliary Trip Fixing Part.)

본 고안은 원자로노심보호연산기계통 보조정지설정부의 상,하한 설정치와 정상운정설정부의 상,하한 설정치사이에 상,하한 설정치를 설정한 예비정지설정경보부를 더 구비하여 원자로 운전시 불필요한 원자로 정지를 발생시키는 보조정지설정부에 대해 예비정지설정경보부를 설치하여 원자로운전원에게 예비경보를 인지하게 하여 원자로운전원이 적절한 조치를 취할 수 있도록 하여서 상기 보조정지설정부에 의해 원자로 보조정지를 방지하여 원자로 운전의 효율을 높일 수 있는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통에 관한 것이다.The present invention further includes a preliminary stop setting alarm unit which sets an upper and a lower limit value between the upper and lower set points of the reactor core protection operation machinery auxiliary stop setting unit and the upper and lower set points of the normal operation setting unit. A preliminary stop setting alarm unit is provided for the auxiliary stop setting unit to make the atomic power source recognize the preliminary alarm so that the atomic power source can take appropriate measures. It relates to a nuclear reactor core protection operation cylinder having an auxiliary stop setting unit and a preliminary stop alarm setting unit that can be increased.

미국특허 4080251호, 4318778호 및 4330367호는 디지털 컴퓨터를 이용하여 주요 핵연료설계 제한인자인 핵비등이탈율(DNRB)과 국부출력밀도(LPD)를 실시간으로 감시하고 제한치를 위반하는 경우 원자로 정지신호를 발생시키는 원자로노심보호 및 원자로노심 장치와 방법의 고안을 기술하고 있다.US Patents 4080251, 4318778, and 4330367 use digital computers to monitor the nuclear fuel escape rate (DNRB) and the local power density (LPD) in real time, and to detect reactor stop signals in violation of limits. The design of generating reactor core protection and reactor core devices and methods is described.

그리고 원자로노심의 상태를 감시하고 이상 발생시 원자로를 정지시키는 기 능을 수행하는 원자로노심보호연산기계통(CPCS)은 발전소 보호계통의 일부로서 4개의 독립된 채널로 구성되며, 주기능은 예상운전사고(AOO:Anticipated Operational Occurrence)에 대하여 핵비등이탈율(DNBR:Departure Nuclear Boliing Ratio), 국부출력밀도(LPD:Local Power Density)가 제한값 초과하지 않도록 자동적으로 발전소보호에 대한 안전기능을 수행한다.The CPCS, which monitors the status of the reactor core and shuts down the reactor in the event of an abnormality, consists of four independent channels as part of the plant's protection system.The main function is expected operation (AOO). It automatically performs safety functions for plant protection so that the Nuclear Boiler Ratio (DNBR) and Local Power Density (LPD) do not exceed the limits for Anticipated Operational Occurrence.

상기 원자로노심보연산기계통(CPCS)은 기능적으로 노심보호연산기(CPC:Core Protection Calculator), 제어봉집합체연산기(CEACs: Control Element Assembly Calculators), 제어봉위치연산기(CPP: CEA Position Processor), 유지보수시험반(MTP: Maintenance and Test Panel)로 구성되며, 그 외에 주제어반에 위하는 운전모듈(OM: Operator Module)와 CEA 위치지시계(CEAPD: CEA Position Display)를 구비하여 이루어진다.The nuclear reactor core operation machine (CPCS) is functionally a core protection calculator (CPC), control element assembly calculators (CEACs), control rod position calculators (CPP: CEA Position Processor), maintenance test panel ( It is composed of MTP: Maintenance and Test Panel, and is also equipped with an operator module (OM) and CEA Position Display (CEAPD) for main control board.

이러한 원자로노심보호연산기계통(CPCS)의 핵비등이탈율 및 국부출력밀도값 이외에도 노심의 안전성을 저해할 가능성이 있는 변수들이 특정한 설정치에 도달하면 원자로노심보호연산기계통의 보조정지설정부에서 보조정지신호를 제공하여 원자로를 정지하는 것이다.In addition to the nuclear boiling escape rate and the local power density value of the reactor core protection operation machinery (CPCS), when the parameters that may impair the safety of the core reach a specific setting value, the auxiliary stop signal of the reactor core protection operation machinery To stop the reactor.

또한, 원자로노심보호연산기계통(CPCS)에서 핵비등이탈율값을 계산하는데 사용되는 입력이 특정한 범위를 초과하는 경우에도 보조정지설정부에서 보조정지신호를 발생시킨다.In addition, the auxiliary stop setting unit generates an auxiliary stop signal even when the input used to calculate the nuclear boiling deviation rate value in the CPCS exceeds a specific range.

그러나 상기 원자로노심보호연산기계통(CPCS)의 보조정지설정부에서 핵비등이탈율 초과, 국부출력밀도값초과, 가변과출력 이외에 원자로 노심의 안전성을 저 해하는 변수들에 의해 원자로노심보호연산기계통의 보조정지설정부에서 보조정지신호에 의해서 원자로 보조정지 경우의 일부는 원자로운전원에 대한 적절한 경보발생할 경우에 원자로운전원이 원자로운전에 대한 적절한 제어조치를 취하여서 원자로정지를 방지할 수 있는 원전자로 운전에 대한 예비정지에 대한 예비경보가 없어서 효율적인 원자로운전이 이루지지 못한 문제점이 있었다.However, in the auxiliary stop setting part of the reactor core protection operation machinery (CPCS), the auxiliary core operation of the reactor core protection operation machinery is caused by variables that exceed the nuclear boiling deviation rate, exceed the local power density value, and reduce the safety of the reactor core in addition to the variable overpower. In the case of an auxiliary stop signal by the auxiliary stop signal in the stop setting part, in case of proper alarm on the nuclear power source, the nuclear power source can take appropriate control measures for nuclear power supply to prevent nuclear reactor operation. There was a problem that efficient reactor operation was not achieved because there was no preliminary alarm for the preliminary stop.

상기와 같은 문제점을 해결하기 위해서, 본 고안은 원자로노심보호연산기계통 보조정지설정부의 상,하한 설정치와 정상운정설정부의 상,하한 설정치사이에 상,하한 설정치를 설정한 예비정지설정경보부를 더 구비하여 원자로 운전시 불필요한 원자로 정지를 발생시키는 보조정지설정부에 대해 예비정지설정경보부를 설치하여 원자로운전원에게 예비경보를 인지하게 하여 운전원이 적절한 조치를 취할 수 있도록 하여서 상기 보조정지설정부에 의해 원자로 보조정지를 방지하여 원자로 운전의 효율을 높일 수 있는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통을 제공하고자 하데 그 목적이 있다.In order to solve the above problems, the present invention further includes a preliminary stop setting alarm unit configured to set the upper and lower limit values between the upper and lower limit values of the nuclear reactor core protection operation machine auxiliary stop setting unit and the upper and lower limit values of the normal operation setting unit. By installing a preliminary stop setting alarm unit for the auxiliary stop setting unit which causes unnecessary reactor stop during reactor operation, and allowing the operator to take appropriate measures by allowing the operator to recognize the preliminary alarm. It is an object of the present invention to provide a reactor core protection operation machine having an auxiliary stop setting unit and a preliminary stop alarm setting unit which can prevent the stop and increase the efficiency of reactor operation.

이와 같은 목적을 달성하기 위해서, 핵비등이탈율(DNBR:Departure Nuclear Boliing Ratio)초과 및 국부출력밀도(LPD:Local Power Density)의 제한값 초과, 가변과출력 이외에 원자로 노심의 안전성을 저해하는 변수들에 의해 원자로가 정지될 수 있도록 상,하한 설정치를 갖는 보조정지설정부와 정상운전에 필요한 상,하한 설 정치를 갖는 정상운전설정부를 구비한 원자로노심보호연산기계통에 있어서,In order to achieve this goal, variables beyond the DNBR (Departure Nuclear Boliing Ratio) and the limits of Local Power Density (LPD), variable overpower, and other factors that impair the safety of the reactor core. In the nuclear reactor core protection operation machine including the auxiliary stop setting unit having the upper and lower limit values and the normal operation setting unit having the upper and lower limit settings required for the normal operation so that the reactor can be stopped.

상기 원자로노심보호연산기계통의 상기 보조정지설정부 상,하한 설정치와, 상기 정상운전설정부의 상,하한 설정치 사이에 상,하한 설정치를 설정한 예비정지경보설정부를 더 구비한 것을 특징으로 한다.And a preliminary stop alarm setting unit configured to set an upper and a lower limit setting value between the upper and lower limit setting values of the auxiliary stop setting unit and the upper and lower limit setting values of the normal operation setting unit.

또한, 상기 예비정지경보설정부의 상,하한 설정치는 가변상수로 이루어지는 것을 특징으로 한다.In addition, the upper and lower set values of the preliminary stop alarm setting unit is characterized by consisting of a variable constant.

본 고안은 원자로노심보호연산기계통 보조정지설정부의 상,하한 설정치와 정상운정설정부의 상,하한 설정치사이에 상,하한 설정치를 설정한 예비정지설정경보부를 더 구비하여 원자로 운전시 핵비등이탈율 및 국부출력밀도값 이외에도 노심의 안전성을 저해할 가능성이 있는 변수들이 특정한 설정치에 도달하면 원자로 운전시 불필요한 원자로 정지를 발생시키는 보조정지설정부에서 보조정지신호를 발생하여 원자로 보조정지가 발생하기 전에 예비정지경보설정부에 의해 원자로운전원에게 예비경보를 인지하게 하여 원자로운전원이 적절한 조치를 취할 수 있는 제어시간을 확보할 수 있어 원자로의 불필요한 원자로의 보조정지를 방지하여 원자로의 효율적인 원자로의 운전을 할 수 있는 효과가 있다. The present invention further includes a preliminary stop setting alarm unit configured to set an upper and lower limit value between the upper and lower limit values of the reactor core protection operation machinery auxiliary stop setting part and the upper and lower limit values of the normal operation setting part. In addition to the local power density value, if the parameters that may impair the safety of the core reach a certain set value, the auxiliary stop setting section generates an auxiliary stop signal that generates unnecessary reactor stops during reactor operation. The alarm setting unit allows the atomic power supply to recognize the preliminary alarms to secure a control time for the atomic power supply to take appropriate measures, thereby preventing unnecessary shutdown of the nuclear reactors, enabling efficient operation of the reactor. It works.

이하, 본 고안을 첨부된 도면을 참고하여 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안에 따른 원자로노심보호연산기계통의 보조정지설정부와 예비정지경보설정부를 나타낸 설정도이고, 도 2는 본 고안에 따른 원자로노심보연산기 계통의 원자로 출력에 의한 보조정지설정부와 예비정지경보설정부를 나타낸 흐름도이다.1 is a diagram illustrating a secondary stop setting unit and a preliminary stop alarm setting unit of a nuclear reactor core protection and operation machine according to the present invention, and FIG. 2 is an auxiliary stop setting unit by the reactor output of the nuclear reactor core complementary system according to the present invention. It is a flowchart which shows a preliminary stop alarm setting part.

본 고안에 따른 보조정지설정부에 예비정지경보설정부를 설치한 원자로노심보호연산기계통을 도 1 및 도 2에 도시된 것을 참조하여 설명하면;Referring to the reactor core protection operation machinery installed in the auxiliary stop setting unit according to the present invention the preliminary stop alarm setting unit with reference to those shown in Figs.

본 고안은 원자로노심보호연산기계통의 보조정지설정부(10, 10')와, 예비정지경보설정부(20, 20')정상운전설정부(30, 30')로 구성한다.The present invention comprises an auxiliary stop setting unit (10, 10 ') and a preliminary stop alarm setting unit (20, 20') normal operation setting unit (30, 30 ') of the nuclear reactor core protection operation.

상기 보조정지설정부(10, 10')는 핵비등이탈율(DNBR:Departure Nuclear Boliing Ratio)초과 및 국부출력밀도(LPD:Local Power Density)의 제한값 초과, 가변과출력 이외에 원자로 노심의 안전성을 저해하는 변수들에 의해 원자로가 정지될 수 있도록 상,하한 설정치를 설정하여 구성한다.The auxiliary stop setters 10 and 10 ′ exceed the DNBR (Departure Nuclear Boliing Ratio) and exceed the limit of the Local Power Density (LPD) and inhibit the safety of the reactor core in addition to the variable overpower. The upper and lower set values are set so that the reactor can be stopped by the variables.

이러한 상기 보조정지설정부(10, 10')의 상,하한 설정치와 상기 정상운전설정부(30, 30')의 상,하한 설정치사이에 상,하한 설정치를 설정한 예비정지경보설정부(20, 20')를 더 구비하여 구성한다.The preliminary stop alarm setting unit 20 which sets an upper and a lower limit setting value between the upper and lower limit setting values of the auxiliary stop setting unit 10 and 10 'and the upper and lower limit setting values of the normal operation setting unit 30 and 30'. 20 ') is further provided.

또한, 상기 예비정지경보설정부(20, 20')의 상,하한 설정치는 가변상수로 구성한다.In addition, the upper and lower set values of the preliminary stop alarm setting units 20 and 20 'are composed of variable constants.

상기 예비정지경보설정부(20, 20')는 저온관 온도(Cold Temperature, Tcmim, Tcmax), 1차 측압력(p), 고온봉 축방향 출력분포지수(Hot Pin Axial Shape, Index, AHP), 통합 단일봉 반경방향 첨두지수(Integrate One Pin Radial Peak P1)에 의한 범위정지과 고온관 온도의 포화온도 도달과 저온관 온도차 설정치 이상(Asymmetric Steam Generator Temperature Asgt)과 가변과출력 보조정지(Variable Over Power Trip VOPT)와 저압력(Low Pressure, LP)과 저 핵비등이탈율(Low Departure From Nucleate Boiling Ratio,LD)이 발생시 예비정지에 대한 예비경보가 발생한다.The preliminary stop alarm setting unit 20, 20 'is a cold tube temperature (Cold Temperature, Tcmim, Tcmax), the primary side pressure (p), hot rod axial output distribution index (Hot Pin Axial Shape, Index, AHP) , Range stop by Integrated Single Pin Radial Peak P1, Saturation temperature of hot tube temperature reached, Asymmetric Steam Generator Temperature Asgt and Variable Over Power Auxiliary Stop Trip VOPT), Low Pressure (LP), and Low Departure From Nucleate Boiling Ratio (LD) will generate a preliminary warning of preliminary stops.

이러한 상기 예비정지경보설정부(20, 20')에 의해 원자로 운전원에게 예비정지에 대한 예비경보를 제공하여 원자로의 보조정지설정부(10, 10')에 의해 발생되는 원자로의 보조정지를 방지할 수 있다.The preliminary stop alarm setting unit 20, 20 'provides a preliminary alarm for the preliminary stop to the reactor operator to prevent the secondary stop of the reactor generated by the sub stop setting unit 10, 10' of the reactor. Can be.

상기 예비정지경보설정부(20, 20')의 상,하한 설정치는 원자로의 운전원이 충분한 제어시간을 확보할 수 있도록 한다.The upper and lower set values of the preliminary stop alarm setting units 20 and 20 'allow the operator of the reactor to ensure sufficient control time.

또한, 상기 예비정지경보설정부(20, 20')의 예비경보는 발전소 정상운전중에 불필요한 경보를 운전원에 제공되지 않아야 한다.In addition, the preliminary alarm of the preliminary stop alarm setting unit 20, 20 'should not be provided to the operator unnecessary alarm during the normal operation of the power plant.

따라서, 도 1에 도시하는 바와 같이 원자로노심보호연산기계통은 상기 보조정지설정부(10)와, 상기 예비정지경보설정부(20)와, 정상운전설정부(30)로 구성한다.Therefore, as shown in FIG. 1, the nuclear reactor core protection operation machine is comprised of the said auxiliary stop setting part 10, the said preliminary stop alarm setting part 20, and the normal operation setting part 30. As shown in FIG.

원자로 정지변수는 정상운전설정부(30)의 정상운전때는 보조정지설정부(10)의 설정치의 값이내에 동작한다.The reactor stop variable operates within the set value of the auxiliary stop setting unit 10 during the normal operation of the normal operation setting unit 30.

그러나 비상시인 보조정지시 상기 보조정지설정부(10)의 상하한 설정치보다 크거나 작은 값이 되며, 이때 원자로 정지신호가 발생한다.However, in case of an emergency stop in case of emergency, the value becomes larger or smaller than the upper and lower set values of the auxiliary stop setting unit 10. At this time, the reactor stop signal is generated.

따라서 본 고안에서는 정상운전설정부(30)와 보조정지설정부(10)의 상,하한 설정치 사이에 불필요하게 경보가 발생하는 것을 방지하고 천이상태에서는 적절히 경보를 발생하도록 경보설정치를 결정하기 위해 예비정지경보설정부(20)를 설정하여 이를 통하여 운전원이 필요시 적절한 조치를 취하여 원자로 정지를 방지할 수 있는 예방조치를 취할 수 있다.Therefore, in the present invention, a preliminary stop is performed in order to prevent an alarm from occurring unnecessarily between the upper and lower set values of the normal operation setting unit 30 and the auxiliary stop setting unit 10 and to generate an alarm appropriately in a transition state. By setting the alarm setting unit 20, the operator can take appropriate measures when necessary to take preventive measures to prevent the reactor stop.

도 2에 도시하는 바와 같이 원자로의 출력에 따른 보조정지설정부(10')와 예비정지경보설정부(20')의 설정을 나타낸 것으로 가변설정치 가로축에 따라 변하는 가변설정치의 값에 따라 보조정지설정부(10')의 설정치가 변할때, 예비정지경보설정부(20')의 설정치도 가변하여 설정하므로 불필요한 예비정지에 대한 경보를 방지하여 원자로의 정지를 예방하여 원자로의 효율적인 운전을 할 수 있는 것이다.As shown in FIG. 2, the auxiliary stop setting unit 10 ′ and the preliminary stop alarm setting unit 20 ′ according to the output of the reactor are shown, and the auxiliary stop setting according to the value of the variable set value varying along the horizontal axis of the variable set value. When the set value of the sub 10 'is changed, the set value of the preliminary stop alarm setting unit 20' is also set to be variable, thereby preventing the alarm for unnecessary preliminary stops, thereby preventing the reactor from stopping, and thus enabling efficient operation of the reactor. .

도 1은 본 고안에 따른 원자로노심보호연산기계통의 보조정지설정부와 예비정지경보설정부를 나타낸 설정도.1 is a view showing a secondary stop setting unit and a preliminary stop alarm setting unit of the reactor core protection operation machine cylinder according to the present invention.

도 2는 본 고안에 따른 원자로노심보연산기계통의 원자로 출력에 의한 보조정지설정부와 예비정지경보설정부를 나타낸 흐름도.Figure 2 is a flow chart showing the auxiliary stop setting unit and the preliminary stop alarm setting unit by the reactor output of the reactor core core operation machine according to the present invention.

***도면의 주요부분에 대한 부호의 설명****** Explanation of symbols for main parts of drawing ***

10,10': 보조정지설정부 20,20': 예비정지경보설정부        10,10 ': Auxiliary stop setting part 20,20': Preliminary stop alarm setting part

30,30': 정상운전설정부        30,30 ': Normal operation setting part

Claims (2)

핵비등이탈율(DNBR:Departure Nuclear Boliing Ratio)초과 및 국부출력밀도(LPD:Local Power Density)의 제한값 초과, 가변과출력 이외에 원자로 노심의 안전성을 저해하는 변수들에 의해 원자로가 정지될 수 있도록 상,하한 설정치를 갖는 보조정지설정부(10, 10')와 정상운전에 필요한 상,하한 설정치를 갖는 정상운전설정부(30, 30')를 구비한 원자로노심보호연산기계통에 있어서,In addition to exceeding the Departure Nuclear Boliing Ratio (DNBR) and Local Power Density (LPD) limits, variable overpower and other factors that can cause the reactor to shut down due to variables that impair the safety of the reactor core. In the reactor core protection operation machine having the auxiliary stop setting unit (10, 10 ') having the lower limit set value and the normal operation setting unit (30, 30') having the upper and lower limit setting values required for normal operation, 상기 원자로노심보호연산기계통의 상기 보조정지설정부(10, 10') 상,하한 설정치와, 상기 정상운전설정부(30, 30')의 상,하한 설정치 사이에 상,하한 설정치를 설정한 예비정지경보설정부(20, 20')를 더 구비한 것을 특징으로 하는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통.A preliminary stop in which an upper and lower limit set value is set between the upper and lower limit set values of the auxiliary stop setters 10 and 10 'of the nuclear reactor core protection and operation machine cylinder and the upper and lower limit set values of the normal operation setters 30 and 30'. A reactor core protection operation machine having an auxiliary stop setting unit and a preliminary stop alarm setting unit, further comprising an alarm setting unit (20, 20 '). 제 1항에 있어서, The method of claim 1, 상기 예비정지경보설정부(20, 20')의 상,하한 설정치는 가변상수로 이루어지는 것을 특징으로 하는 보조정지설정부와 예비정지경보설정부를 갖는 원자로노심보호연산기계통.An upper and lower limit set value of the preliminary stop alarm setting unit (20, 20 ') is composed of a variable constant, the reactor core protection operation machinery having a preliminary stop alarm setting unit.
KR2020080003741U 2008-03-21 2008-03-21 .Pretrip Alarm Fixing Part For Auxliary Trip Fixing Part of Nuclear Core Protection System. KR20090009671U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101653915B1 (en) * 2015-03-11 2016-09-02 주식회사 티보그 Device and method for variable overpower reactor trip of reactor protection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101653915B1 (en) * 2015-03-11 2016-09-02 주식회사 티보그 Device and method for variable overpower reactor trip of reactor protection system

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