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公开(公告)号：WO2014017785A1
公开(公告)日：2014-01-30
申请号：PCT/KR2013/006485
申请日：2013-07-19
Applicant: 한국원자력연구원 , 한국수력원자력 주식회사
Abstract: 전열관의 원주 단면의 타원화 검출 장치는, 전열관 내부에 삽입되어 상기 전열관의 길이 방향을 따라 이동 가능하고, 상기 전열관의 내면 원주 방향을 따라 회전 가능하게 구비되는 탐촉자 몸체, 상기 탐촉자 몸체 양단에 구비되어 상기 탐촉자 몸체의 선형 이동 및 회전을 지지하는 지지발, 상기 탐촉자 몸체의 서로 다른 위치에 형성된 코일 지지부 및 상기 코일 지지부에 장착되어 상기 전열관 단면의 타원화를 검출하기 위해서 와전류 저항을 측정하기 위한 제1 코일 유닛과 제2 코일 유닛으로 구성되는 와전류 코일을 포함하여 구성되고, 상기 와전류 코일은, 상기 제1 및 제2 코일 유닛 중 하나를 검사(test) 코일로 사용하고 나머지 하나를 기준(reference) 코일로 사용하거나, 상기 제1 및 제2 코일 유닛 양자를 검사 코일로 사용한다.
Abstract translation: 用于检测传热管的周向截面的椭圆形变形的装置包括：主传感器体，其插入在传热管的内部，并且设置成能够沿纵向移动 并且能够在传热管的内表面的周向方向上旋转; 支撑腿设置在主换能器主体的两端，并支撑主换能器主体的直线运动和旋转; 线圈支撑部件，其形成在主换能器主体的相互不同的位置; 和涡流线圈，其装配到线圈支撑部分，并且包括用于测量涡流电阻的第一线圈单元和第二线圈单元，以便检测传热管的横截面的椭圆形变形。 在涡电流线圈中，将第一线圈单元或第二线圈单元用作测试线圈，另一端用作参考线圈，或者将第一线圈单元和第二线圈单元均用作测试线圈。
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公开(公告)号：KR1020140013237A
公开(公告)日：2014-02-05
申请号：KR1020120079750
申请日：2012-07-23
Applicant: 한국원자력연구원 , 한국수력원자력 주식회사
Abstract: An apparatus for detecting ovality of heat exchanger pipe's cylindrical section comprises: a probe body which can rotate along the longitudinal direction of the heat exchanger pipe and the inner cylindrical direction of the heat exchanger pipe; a supporter which is installed on both ends of the probe body for supporting the linear movement and rotation of the probe body; a coil supporting part installed at a part of the probe body; and an eddy current coil comprising first and second coil units for detecting the ovality of the heat exchanger pipe's cylindrical section by measuring eddy current resistance. The first and second coil units are positioned at different places in the coil supporting part. The degree of ovality is detected by using the size difference between measured signals from the first and second coil units.
Abstract translation: 一种用于检测热交换器管的圆柱形部分的椭圆度的装置，包括：探针主体，其能够沿热交换器管的长度方向和换热器管的内圆柱方向旋转; 安装在探针体的两端的支撑体，用于支撑探针体的直线运动和旋转; 安装在所述探针体的一部分的线圈支撑部; 以及包括第一和第二线圈单元的涡流线圈，用于通过测量涡流电阻来检测热交换器管的圆柱形部分的椭圆度。 第一和第二线圈单元位于线圈支撑部分中的不同位置。 通过使用来自第一和第二线圈单元的测量信号之间的尺寸差来检测椭圆度。
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公开(公告)号：KR1020040045936A
公开(公告)日：2004-06-05
申请号：KR1020010021684
申请日：2001-04-23
Applicant: 한국원자력연구원
IPC: G01B7/34
CPC classification number: G01N27/9013
Abstract: PURPOSE: A method for measuring a crack and a length of the crack in a heating pipe of a steam generator are provided to precisely determine the crack in the heating pipe by measuring the number and position of peak points. CONSTITUTION: A motorized rotating coil is spirally rotated while moving along a heating pipe of a steam generator. When the motorized rotating coil passes through a crack portion of the heating pipe, a swirl current signal is detected. The swirl current signal is represented as a graph. The number and position of peak points in the graph are measured so as to determine the crack state of the heating pipe. The motorized rotating coil includes one selected from the group consisting of a pancake coil, a plus point coil, an axial coil and a circumferential coil.
Abstract translation: 目的：提供一种用于测量蒸汽发生器加热管中的裂纹和裂纹长度的方法，以通过测量峰值点的数量和位置来精确地确定加热管中的裂纹。 构成：电动旋转线圈在沿着蒸汽发生器的加热管移动的同时旋转。 当电动旋转线圈通过加热管的裂纹部分时，检测到涡流电流信号。 漩涡电流信号用一个图表示。 测量图中峰值点的数量和位置，以便确定加热管的裂纹状态。 电动旋转线圈包括从薄饼线圈，正点线圈，轴向线圈和周向线圈组成的组中选择的线圈。
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公开(公告)号：KR1020020075525A
公开(公告)日：2002-10-05
申请号：KR1020010015552
申请日：2001-03-26
IPC: G21D1/00
CPC classification number: C22C28/00 , C23F11/182 , G21C17/0225 , G21Y2002/103
Abstract: PURPOSE: An inhibition method of the secondary side stress corrosion cracking in nuclear steam generator tubes is provided to increase the resistance of heat pipe for stress corrosion cracking by supplying a compound selected from cerium boride, lanthanum boride, and a mixture thereof to a secondary chute channel. CONSTITUTION: For testing the resistance of a heat pipe, NaOH solution of 10% is used and a temperature of 315°C is set because the environment of causing the secondary stress corrosion cracking of the heat pipe is high basic atmosphere of the operation temperature of a steam generator. A test piece of the stress corrosion cracking is a C-type ring and has an outer diameter of 1.5mm. For accelerating the stress corrosion cracking, a voltage higher than a corrosion voltage of 150mV is applied to the test piece. A corrosion inhibitor of 4 g/l is used. In case that cerium boride and lanthanum boride is added as a corrosion inhibitor, the resistance of the heat pipe for the stress corrosion cracking is dramatically increased.
Abstract translation: 目的：提供核蒸汽发生器管中次级侧应力腐蚀开裂的抑制方法，通过将选自硼化镧，硼化镧及其混合物的化合物提供给二级槽，提高热管对应力腐蚀开裂的阻力 渠道。 构成：为了测试热管的阻力，使用10％的NaOH溶液，设定温度为315℃，因为导致热管的二次应力腐蚀开裂的环境是高碱性气氛的操作温度 蒸汽发生器。 应力腐蚀开裂试验片为C型环，外径为1.5mm。 为了加速应力腐蚀开裂，对试验片施加高于150mV的腐蚀电压的电压。 使用4g / l的缓蚀剂。 在加入硼化铈和硼化镧作为缓蚀剂的情况下，热管对应力腐蚀开裂的阻力显着增加。
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Patent Agency Ranking
公开(公告)号：KR101613256B1
公开(公告)日：2016-04-19
申请号：KR1020140119092
申请日：2014-09-05
Applicant: 한국원자력연구원
IPC: G01N27/90 , G01R19/165
CPC classification number: F22B37/002 , G01N17/008 , G01N27/9046
Abstract: 본발명은와전류검사법을이용한전열관부식량예측방법에관한것으로, 구체적으로는전열관재료에와전류 MRPC 탐촉자검사를수행하는단계(단계 1); 상기단계 1에서수행된 MRPC 탐촉자검사의신호를평가하는단계(단계 2); 및상기단계 2에서평가된전열관의 MRPC 검사신호의노이즈값으로부터전열관재료의부식량을예측하는단계(단계 3);를포함하는와전류검사법을이용한전열관의부식량예측방법을 제공한다. 본발명에따른전열관부식량예측방법을이용하면, 전열관재료의와전류 MRPC 노이즈검사를통하여, 1차계통조건에서의전열관의부식량에관한기준을요건화할수 있고부식량을예측할수 있으므로, 재료선정단계에서적은부식량을갖는전열관재료를선정할수 있는효과가있다.
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公开(公告)号：KR100926869B1
公开(公告)日：2009-11-16
申请号：KR1020080007164
申请日：2008-01-23
Applicant: 한국원자력연구원 , 한국수력원자력 주식회사
IPC: G21C17/017 , G21C17/00 , G21C13/00
CPC classification number: Y02E30/40
Abstract: An apparatus for measuring setting angle of pressure vessel penetration nozzle and measuring method are provided to accurately measure the setting angle by inserting the probing body into the penetration nozzle without opening or disassembling the vessel. An apparatus for measuring setting angle of pressure vessel penetration nozzle comprises a probing body(110), and eddy current coil(140). The proving body is inserted to the penetration nozzle inside of the pressure vessel, and enables movement to the longitudinal direction of the penetration nozzle. The eddy current coil is installed in the probing body and measures eddy current resistance to the longitudinal direction and columnar direction of the penetration nozzle along circumferential direction rotation.
Abstract translation: 提供一种测量压力容器穿透喷嘴的设定角度的装置和测量方法，以通过将探测体插入穿透喷嘴而不打开或拆卸容器来准确地测量设定角度。 测量压力容器穿透喷嘴的设定角度的装置包括探测体（110）和涡流线圈（140）。 将检验体插入到压力容器内部的贯穿喷嘴中，并且能够在贯穿喷嘴的纵向方向上移动。 涡流线圈安装在探测体中，并测量沿圆周方向旋转的渗透喷嘴的纵向方向和圆柱方向的涡流阻力。
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公开(公告)号：KR1020090081204A
公开(公告)日：2009-07-28
申请号：KR1020080007164
申请日：2008-01-23
Applicant: 한국원자력연구원 , 한국수력원자력 주식회사
IPC: G21C17/017 , G21C17/00 , G21C13/00
CPC classification number: Y02E30/40 , G21C17/017 , G01B7/30
Abstract: An apparatus for measuring setting angle of pressure vessel penetration nozzle and measuring method are provided to accurately measure the setting angle by inserting the probing body into the penetration nozzle without opening or disassembling the vessel. An apparatus for measuring setting angle of pressure vessel penetration nozzle comprises a probing body(110), and eddy current coil(140). The proving body is inserted to the penetration nozzle inside of the pressure vessel, and enables movement to the longitudinal direction of the penetration nozzle. The eddy current coil is installed in the probing body and measures eddy current resistance to the longitudinal direction and columnar direction of the penetration nozzle along circumferential direction rotation.
Abstract translation: 提供了用于测量压力容器贯通喷嘴的设定角度的装置和测量方法，以便通过将探测器插入穿透喷嘴而不打开或拆卸容器来精确测量设定角度。 用于测量压力容器穿透喷嘴的设定角度的装置包括探测体（110）和涡流线圈（140）。 将证明体插入到压力容器内的贯通喷嘴内，能够向贯通喷嘴的长度方向移动。 涡流线圈安装在探测体内，测量沿着圆周方向旋转的贯通喷嘴纵向和柱面方向的涡流阻力。
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公开(公告)号：KR100447482B1
公开(公告)日：2004-09-07
申请号：KR1020010021684
申请日：2001-04-23
Applicant: 한국원자력연구원
IPC: G01B7/34
CPC classification number: G01N27/9013
Abstract: Disclosed herein is a method of discriminating a through-wall crack and measuring the through-wall length of the crack in a steam generator tube of a nuclear power plant. The method of the present invention is characterized in that the through-wall crack is discriminated and the through-wall length of the crack is measured in such a way that there are measured the number and positions of inflection points of a graph that is plotted by relating characteristic amplitude values of eddy current signals, which are generated whenever a coil of a motorized rotating probe passes the crack while being spirally rotated, to the positions in the length of the crack.
Abstract translation: 本文公开了一种区分贯穿壁的裂纹和测量核电站的蒸汽发生器管中的裂缝的贯穿壁长度的方法。 本发明的方法的特征在于，穿透壁裂纹被识别，并且裂缝的穿壁长度以这样的方式被测量，即，测量图形的拐点的数量和位置， 将电动旋转探测器的线圈每当螺旋旋转时通过裂纹时产生的涡流信号的特征振幅值与裂缝长度中的位置相关联。
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公开(公告)号：KR100415265B1
公开(公告)日：2004-01-16
申请号：KR1020010015552
申请日：2001-03-26
IPC: G21D1/00
CPC classification number: C22C28/00 , C23F11/182 , G21C17/0225 , G21Y2002/103
Abstract: The inhibitor such as lanthanum boride which is supplied into feed water, inhibits intergranular corrosion and stress corrosion cracking of steam generator tubes in the secondary side of the nuclear power plant. An Independent claim is included for method for inhibiting intergranular corrosion and stress corrosion cracking.
Abstract translation: 供给给水中的硼化镧等抑制剂抑制核电站二次侧的蒸汽发生管的晶间腐蚀和应力腐蚀开裂。 独立权利要求包括用于抑制晶间腐蚀和应力腐蚀开裂的方法。
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