-
公开(公告)号：KR1020110016268A
公开(公告)日：2011-02-17
申请号：KR1020090073888
申请日：2009-08-11
Applicant: 한국전력공사
IPC: G21C15/00
CPC classification number: Y02E30/40 , G21C17/022 , G21C15/28 , G21Y2002/103 , G21Y2004/403
Abstract: PURPOSE: A method of controlling dissolved lithium concentration in PHWR coolant circuit using conductivity is provided to reduce the radiation exposure of a worker caused by the conventional analysis by managing the concentration of the coolant system dissolution lithium indirectly. CONSTITUTION: The admissible variation range of the dissolution lithium concentration is set(S1). The plan preventive maintenance term is determined(S2). The monitoring and management procedure of the dissolution lithium concentration is implemented(S3). The compensation relation between the dissolution lithium and the conductivity is determined(S4-S6). The dissolution lithium concentration is calculated as the conductance value of the coolant system measured(S8). The high concentration lithium hydroxide solution injection amount is calculated(S10). The high concentration Lithia water is inserted in the coolant system(S11).
Abstract translation: 目的：提供使用电导率控制PHWR冷却剂回路中溶解锂浓度的方法，以通过间接管理冷却剂系统溶解锂的浓度来减少常规分析引起的工人辐射暴露。 构成：设定溶解锂浓度的允许变化范围（S1）。 确定计划预防性维护期限（S2）。 实施溶解锂浓度的监测和管理程序（S3）。 确定溶解锂与电导率之间的补偿关系（S4-S6）。 计算出溶解锂浓度作为测量的冷却剂系统的电导值（S8）。 计算高浓度氢氧化锂溶液注入量（S10）。 高浓度的锂离子水插入冷却剂系统（S11）。
-
公开(公告)号：KR100261664B1
公开(公告)日：2000-07-15
申请号：KR1019970054049
申请日：1997-10-21
IPC: C21D8/00
Abstract: PURPOSE: A method for manufacturing a high toughness SA508 Gr. 3 steel is provided in which fracture toughness is improved by using the intercritical heat treatment. CONSTITUTION: In a method for manufacturing an SA508 Gr. 3 steel comprising quenching, tempering and heat treatment process after welding, the SA508 Gr. 3 steel comprises 0.25 wt.% or less of C, 1.2 to 1.5 wt.% of Mn, 0.15 to 0.4 wt.% of Si, 0.015 wt.% or less of P, 0.015 wt.% or less of S, 0.4 to 1.0 wt.% of Ni, 0.25 wt.% or less of Cr, 0.45 to 0.6 wt.% of Mo, 0.04 wt.% or less of Al, 0.06 wt.% or less of Cu, 0.03 wt.% or less of V and a balance of Fe, intercritical heat treatment process which is performed at a temperature of 680 to 750 deg.C for 1 to 8 hours is added between the quenching process and the tempering process, and the tempering process is carried out at a temperature less than 635 deg.C after the intercritical heat treatment process.
Abstract translation: 目的：制造高韧性SA508 Gr的方法。 提供通过使用临界热处理来提高断裂韧性的3钢。 构成：在制造SA508 Gr的方法中 3钢包括淬火，回火和热处理工艺焊接后，SA508 Gr。 3钢包含0.25重量％以下的C，1.2〜1.5重量％的Mn，0.15〜0.4重量％的Si，0.015重量％以下的P，0.015重量％以下的S，0.4〜 1.0重量％的Ni，0.25重量％以下的Cr，0.45〜0.6重量％的Mo，0.04重量％以下的Al，0.06重量％以下的Cu，0.03重量％以下的Cu，0.03重量％ 在淬火处理和回火处理之间，添加在680〜750℃的温度下进行1〜8小时的Fe，临界热处理工艺的平衡，回火处理在温度 在临界热处理过程之后小于635℃。
-
公开(公告)号：KR101083215B1
公开(公告)日：2011-11-11
申请号：KR1020100018177
申请日：2010-02-26
Applicant: 한국전력공사
IPC: G21C17/017
Abstract: 본발명은증기발생기전열관내경의원주균열에대한 MRPC 와전류탐상검사방법을개시한다. 본발명에따르면, 증기발생기전열관내경의원주균열에대한 MRPC 와전류탐상검사방법에있어서, 증기발생기의전열관에 MRPC 탐촉자를사용하여복수의주파수를인가하여와전류검사신호를획득하는단계, 획득된와전류검사신호로부터복수의주파수별신호특성을분석하여내경원주균열을확인하는단계, 내경원주균열에대하여보정곡선을작성하고, 복수의주파수별와전류검사신호들중 어느하나의주파수에상응하는와전류검사신호에대한데이터를선택하는단계, 확인된균열이시작되는시점부터일정한간격으로균열이끝나는점까지깊이를측정하는단계및 균열의길이에상응하는깊이형상을이용하여손상면적백분율(Percent Degraded Area; PDA)을산출하는단계를포함하는증기발생기전열관내경의원주균열에대한 MRPC 와전류탐상검사방법을제공할수 있다.
-
4.发明授权원자력 발전소의 고온고압환경에서 사용된 히터 슬리브 노즐 관통관에 발생되는 응력부식균열에 대한 비파괴 검사의 성능 검증용 시편 제조방법 有权Mehtod制造样机，用于在高温高压下从PWR加压器套筒喷嘴产生的应力腐蚀裂纹的非破坏性试验性能验证
公开(公告)号：KR101083183B1
公开(公告)日：2011-11-11
申请号：KR1020090104602
申请日：2009-10-30
Applicant: 한국전력공사
Abstract: 시편을용접하는단계에서는 Alloy 600 모재와 Alloy 182 용접봉을준비하고, 시편의중앙부위를 V형태로가공, 용접및 재가공을실시한후, 최종규격확인및 방사선투과검사를통해용접성능을검증한다. 두번째단계인예민화열처리단계는, 시편의내식성을떨어뜨려응력부식균열발생이잘 되도록하는것을목적으로하는단계로, 시편의화학조성에따라정해진조건으로예민화열처리를실시하고, 열처리정도를확인하기위한분석시험을수행한다. 세번째단계인하중조건을확립하는단계에서는시편에인장력을가하고응력분포예측을통해적절한하중값을선택한다. 네번째단계인시편페인팅및 프로브(probe) 설치단계에서는, 시편의원하는위치에균열을생성하기위하여시편이산화성용액에국부노출될수 있도록페인팅작업을실시하고, 시편표면에프로브및 용액주입용윈도우(window)를장착한다. 다섯번째단계인응력부식균열생성단계에서는, 시편에산화성용액을주입하고, 세번째단계에서선택된하중을가하는동시에, 응력부식균열의형상을진단함으로써하중의세기를조절하여원하는균열의크기를생성하는단계를포함한다. 또한본 발명에따른방법은시편에인장응력을가하기위해상기 4점굽힘하중법을사용한다.
-
公开(公告)号：KR1020100022292A
公开(公告)日：2010-03-02
申请号：KR1020080080899
申请日：2008-08-19
Applicant: 한국전력공사
Abstract: PURPOSE: A method of preventing an intergranular cracking of carbon steel is provided to control a formation of a decarbonized layer and oxidation of an atomic electrical power plant feeder pipe. CONSTITUTION: A method of preventing an intergranular cracking of carbon steel comprises the following steps: inserting reductive gas before heat-treating the carbon steel; heat-treating the carbon steel with the presence of the reductive gas; and preventing a formation of a decarbonized layer. The reductive gas includes hydrogen gas.
Abstract translation: 目的：提供防止碳钢晶间裂纹的方法，以控制脱碳层的形成和原子发电厂给料管的氧化。 构成：防止碳钢晶间裂纹的方法包括以下步骤：在碳钢热处理之前插入还原气体; 在还原气体的存在下对碳素钢进行热处理; 并防止形成脱碳层。 还原气体包括氢气。
-
Patent Agency Ranking
公开(公告)号：KR1020090032595A
公开(公告)日：2009-04-01
申请号：KR1020070097962
申请日：2007-09-28
Applicant: 한국전력공사
Abstract: A fabrication method of sludge sample for measuring the sludge thickness and a method for measuring the sludge thickness are provided to decide the sludge cleaning period and to evaluate the cleaning effect accurately. A fabrication method of sludge sample for measuring the sludge thickness comprises following steps: a step(S1) which prepares for a magnetic material sludge composition and for a binder sludge composition; a step(S3) which mixes the magnetic material sludge composition and the binder sludge composition; a step(S5) which coats a heat pipe in the mixed sludge composition; and a step(S6) which dries the coated sludge composition.
Abstract translation: 提供污泥厚度测定用污泥试样的制造方法和污泥厚度测定方法，以确定污泥清洗期，并准确评价清洗效果。 用于测量污泥厚度的污泥样品的制造方法包括以下步骤：制备磁性材料污泥组合物和粘结剂淤泥组合物的步骤（S1） 混合磁性材料污泥组合物和粘结剂淤泥组合物的步骤（S3） 在所述混合污泥组合物中涂布热管的工序（S5） 以及干燥涂布的污泥组合物的工序（S6）。
-
公开(公告)号：KR1020110098525A
公开(公告)日：2011-09-01
申请号：KR1020100018177
申请日：2010-02-26
Applicant: 한국전력공사
IPC: G21C17/017
CPC classification number: G21C17/017 , F22B37/003 , G01N27/90
Abstract: 본 발명은 증기 발생기 전열관 내경의 원주균열에 대한 MRPC 와전류탐상 검사 방법을 개시한다. 본 발명에 따르면, 증기발생기 전열관 내경의 원주균열에 대한 MRPC 와전류탐상 검사 방법에 있어서, 증기발생기의 전열관에 MRPC 탐촉자를 사용하여 복수의 주파수를 인가하여 와전류검사 신호를 획득하는 단계, 획득된 와전류검사 신호로부터 복수의 주파수별 신호특성을 분석하여 내경원주균열을 확인하는 단계, 내경원주균열에 대하여 보정곡선을 작성하고, 복수의 주파수별 와전류 검사 신호들 중 어느 하나의 주파수에 상응하는 와전류 검사 신호에 대한 데이터를 선택하는 단계, 확인된 균열이 시작되는 시점부터 일정한 간격으로 균열이 끝나는 점까지 깊이를 측정하는 단계 및 균열의 길이에 상응하는 깊이 형상을 이용하여 손상면적백분율(Percent Degraded Area; PDA)을 산출하는 단계를 포함하는 증기발생기 전열관 내경의 원주균열에 대한 MRPC 와전류탐상 검사 방법을 제공할 수 있다.
-
8.发明公开원자력 발전소의 고온고압환경에서 사용된 히터 슬리브 노즐 관통관에 발생되는 응력부식균열에 대한 비파괴 검사의 성능 검증용 시편 제조방법 有权Mehtod制造样机，用于在高温高压下从PWR加压器套筒喷嘴产生的应力腐蚀裂纹的非破坏性试验性能验证
公开(公告)号：KR1020110047825A
公开(公告)日：2011-05-09
申请号：KR1020090104602
申请日：2009-10-30
Applicant: 한국전력공사
Abstract: PURPOSE: A method of manufacturing a specimen for verifying the performance of a non-destructive inspection on corrosive crack on the through pipe of a heater sleeve nozzle used in a high-temperature and high-pressure environment of an atomic plant is provided to manufacture the similar crack to high-temperature corrosive crack in an atmospheric environment by the manufacturing of a specimen for verifying the performance of a non-destructive inspection. CONSTITUTION: A method of manufacturing a specimen for verifying the performance of a non-destructive inspection on corrosive crack on the through pipe of a heater sleeve nozzle used in a high-temperature and high-pressure environment of an atomic plant is as follows. A specimen is supplied(100). The corrosion resistance of the specimen is decreased and the generation of corrosive crack is encouraged(200). A load condition, in which a required load value is supplied through 4-point bending load technique, is formed(300). A painting work is practiced on the specimen except for the crack(400).
Abstract translation: 目的：提供一种用于验证原子装置的高温高压环境中使用的加热套筒喷嘴的贯通管上的腐蚀性破裂的无损检测性能的试样的制造方法， 在大气环境中通过制造用于验证非破坏性检查性能的试样的高温腐蚀性裂纹类似的裂纹。 构成：用于验证在原子工厂的高温高压环境中使用的加热套筒喷嘴的贯通管上的腐蚀性破裂的无损检查性能的试样的制造方法如下。 提供样品（100）。 样品的耐腐蚀性降低，并且鼓励产生腐蚀性裂纹（200）。 形成通过4点弯曲加载技术提供所需载荷值的载荷条件（300）。 除了裂纹（400）之外，在试样上进行绘画工作。
-
公开(公告)号：KR100942376B1
公开(公告)日：2010-02-12
申请号：KR1020070097962
申请日：2007-09-28
Applicant: 한국전력공사
Abstract: 슬러지 두께측정을 위한 슬러지 시편 제작방법 및 슬러지 두께측정 방법을 제공한다. 이 제작방법은 자성체 슬러지 조성물 및 바인더 슬러지 조성물을 준비하고, 상기 자성체 슬러지 조성물 및 상기 바인더 슬러지 조성물을 혼합하고, 전열관에 상기 혼합된 슬러지 조성물을 코팅하고, 상기 코팅된 슬러지 조성물을 건조하는 것을 포함한다. 상기 코팅층들 부근에서 와전류 검사 신호를 취득하여 상기 코팅층들의 두께와 와전류 검사 신호의 상관관계를 구하고, 실제 전열관의 와전류 검사 신호를 취득하여 상기 상관관계로부터 상기 실제 전열관에 부착된 슬러지 조성물의 두께를 예측할 수 있다.
-
公开(公告)号：KR100822035B1
公开(公告)日：2008-04-15
申请号：KR1020060106768
申请日：2006-10-31
Applicant: 한국전력공사
IPC: G21C17/017 , G21C17/00
Abstract: A method for manufacturing a heat tube with an oxide layer of a steam generator is provided to improve reliability of an eddy current test and integrity of the steam generator and extend a lifetime of a pressurized water reactor. A method for manufacturing a heat tube with an oxide layer of a steam generator includes the steps of: manufacturing an oxide layer generation system including a chamber(S100); installing steam generator laboratory degraded tubes inside the chamber(S200); generating an oxide layer on the steam generator laboratory degraded tubes by simulating steam generator environment of a pressurized water reactor inside the chamber receiving the steam generator laboratory degraded tubes(S300); and measuring a thickness of the oxide layer formed on the steam generator laboratory degraded tubes by mounting a wire for measuring impedance of the oxide layer generated on the steam generator laboratory degraded tubes(S400).
Abstract translation: 提供一种用于制造具有蒸汽发生器的氧化物层的热管的方法，以提高涡流测试的可靠性和蒸汽发生器的完整性并延长加压水反应器的寿命。 一种用于制造具有蒸汽发生器的氧化物层的热管的方法包括以下步骤：制造包括室的氧化物层生成系统（S100）; 在室内安装蒸汽发生器实验室降解管（S200）; 通过模拟接收蒸汽发生器实验室降解管的室内的加压水反应器的蒸汽发生器环境，在蒸汽发生器实验室上生成氧化层降解管（S300）; 并且通过安装用于测量在蒸汽发生器实验室降解管上产生的氧化物层的阻抗的线来测量形成在蒸汽发生器实验室降解管上的氧化物层的厚度（S400）。
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.022 seconds)
