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公开(公告)号：KR100527429B1
公开(公告)日：2005-11-09
申请号：KR1020030031669
申请日：2003-05-19
Applicant: 한국전력공사
Abstract: 본 발명은 나노분말이 소량 함유된 나노유체의 뛰어난 열전도도를 이용하여 열전달 효율을 획기적으로 향상시킨 전력용 변압기 절연유와 이를 이용한 전력용 변압기를 제공하기 위한 것이다.
본 발명의 변압기 절연유에 부도체인 산화물 분말이 0.1 내지 5부피% 분산되어 있으며, 그 직경은 20 내지 100nm인 것을 특징으로 한다.-
公开(公告)号：KR1020050032266A
公开(公告)日：2005-04-07
申请号：KR1020030068294
申请日：2003-10-01
Abstract: Sensor modules for the measurement of the thermal conductivity of nano-fluids using multi-wires in a transient hot wire method are provided to allow a small amount of fluid sample by optimizing the length of a sensor. A multi-wire sensor module is manufactured in a cylinder type. The multi-wire sensor module is manufactured in a plate shape. The multi-wire sensor module is constructed more compactly than that of a double wire sensor module. Long wires(3) and short wires(4) are connected to each other through a top connection port(10), a middle connection port(11), and a ground connection port(12). The divided long wires(3) and the short wires(4) are spaced from each other with a predetermined distance of 100 times wire diameter. The lengths of the divided long wires(3) and the short wires(4) are extended to 1000times wire diameter from 300times wire diameter.
Abstract translation: 提供用于使用瞬时热丝法测量纳米流体的导热性的传感器模块，以通过优化传感器的长度来允许少量的流体样品。 多线传感器模块以圆筒形式制造。 多线传感器模块制造成板形。 多线传感器模块的构造比双线传感器模块更紧凑。 长导线（3）和短导线（4）通过顶部连接端口（10），中间连接端口（11）和接地连接端口（12）彼此连接。 分割的长丝（3）和短丝（4）以100倍线径的预定距离彼此分开。 分割的长线（3）和短线（4）的长度从300线直径延伸到1000线的直径。
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公开(公告)号：KR101677733B1
公开(公告)日：2016-11-21
申请号：KR1020150130634
申请日：2015-09-15
Applicant: 한국전력공사
Abstract: 본발명은가스터빈의연소코팅방법이개시된다. 본발명의가스터빈의연소코팅방법은, 제어부가가스터빈의구성을분석하는단계; 제어부가분석된가스터빈의구성에따라코팅제공급노즐의설치위치를결정하는단계; 제어부가코팅제공급노즐의설치위치를결정한후 운반가스와공급유량을결정하는단계; 제어부가가스터빈의구성에따라코팅제공급방법및 코팅제분사요건을설정하는단계; 제어부가가스터빈으로분사되는연료, 코팅제및 운반가스의유동해석으로분사동력을산출하는단계; 및제어부가산출된분사동력을기반으로가스터빈의정상운전중 코팅제를분사하여고온부품의표면에기능성코팅을수행하는단계를포함하는것을특징으로한다.
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公开(公告)号：KR101362048B1
公开(公告)日：2014-02-13
申请号：KR1020120075976
申请日：2012-07-12
Applicant: 한국전력공사
Abstract: 본 발명의 일 실시예에 따른 가스 터빈을 모사한 시험장치는 측정대상인 시편이 설치되며, 수평면을 기준으로 소정의 각도가 형성되도록 틸팅가능하게 마련되는 시편설치부와, 상기 시편설치부에 설치된 시편을 향해 화염을 분사하는 연소부 및 상기 연소부에 연료를 공급하도록 마련되는 연료공급부를 포함하고, 상기 시편설치부는 헤드부와 상기 헤드부에 연결되어 상기 헤드부를 지지하는 지지부 및 시편이 장착되고 상기 헤드부로부터 소정 간격 이격되어 배치되는 시편홀더부를 포함할 수 있다.
이에 의해, 가스 터빈 내부에서 사용되고 있는 금속부품과, 금속부품 표면에 층착된 열차폐 코팅층의 수명을 평가할 수 있는 효과가 있다.-
公开(公告)号：KR101326891B1
公开(公告)日：2013-11-11
申请号：KR1020120105137
申请日：2012-09-21
Applicant: 한국전력공사 , 한국남동발전 주식회사 , 한국중부발전(주)
IPC: G01N23/00 , G01N23/225
CPC classification number: G01N23/225 , C23C4/04 , C23C24/106 , C23C30/00 , G01N2223/61 , G01N2223/632
Abstract: The present invention relates to a method for evaluating the soundness of a thermal shield coating. The method for evaluating the soundness of the thermal shield coating evaluates the soundness of the thermal shield coating by diagramming a relative gradient of components of a TGO region formed on the deteriorated thermal shield coating. The present invention compares and analyzes the relative gradient according to deterioration conditions of the thermal shield coating and quantitatively diagnoses the state of the TGO by using the relative gradient, thereby evaluating the extent of the deterioration and the lifetime of the thermal shield coating. [Reference numerals] (AA,DD) Top coating;(BB,EE) Bond coating;(CC,FF) Member: INT738LC
Abstract translation: 本发明涉及一种用于评估热屏蔽涂层的牢度的方法。 用于评估热屏蔽涂层的良好性的方法通过示出在劣化的热屏蔽涂层上形成的TGO区域的组分的相对梯度来评估热屏蔽涂层的牢度。 本发明根据热屏蔽涂层的劣化条件比较和分析相对梯度，并通过使用相对梯度定量诊断TGO的状态，从而评估热屏蔽涂层的劣化程度和使用寿命。 （参考编号）（AA，DD）顶涂层;（BB，EE）粘合涂层;（CC，FF）成员：INT738LC
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Patent Agency Ranking
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公开(公告)号：KR1020120012295A
公开(公告)日：2012-02-09
申请号：KR1020100074370
申请日：2010-07-30
Applicant: 한국전력공사
Abstract: PURPOSE: Silica coating device and method are provided to prevent the scattering of particles and uniformly coat a target with particles since particles generated in a coating process through CCVD(Combustion Chemical Vapor Deposition) are charged. CONSTITUTION: A silica coating device(100) comprises a fuel supply unit(105), a flame generating unit(140), a coating-agent supply unit(160), a charging unit(180), and a spraying unit(190). The fuel supply unit supplies fuel. The flame generating unit burns fuel and generates flame. The coating-agent supply unit supplies a silicon wire(170) into the flame. The charging unit charges the silica particles generated by oxidation of the silicon wire in the flame. The spraying unit sprays the silica particles charged to a target(200).
Abstract translation: 目的：提供二氧化硅涂覆装置和方法，以防止颗粒的飞散，并且由于通过CCVD（燃烧化学气相沉积）在涂覆过程中产生的颗粒带电，颗粒均匀地涂覆颗粒。 构成：二氧化硅涂覆装置（100）包括燃料供应单元（105），火焰产生单元（140），涂层剂供应单元（160），充电单元（180）和喷射单元（190） 。 燃料供应单元供应燃料。 火焰发生单元燃烧燃料并产生火焰。 涂层剂供给单元将硅线（170）供应到火焰中。 充电单元对在火焰中的硅线的氧化产生的二氧化硅颗粒进行充电。 喷涂装置喷射装入目标物（200）的二氧化硅颗粒。
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公开(公告)号：KR100888552B1
公开(公告)日：2009-03-11
申请号：KR1020070098519
申请日：2007-09-29
Applicant: 한국전력공사
IPC: F28D21/00
CPC classification number: F28D21/001 , F28F3/086
Abstract: A heat exchanger for flue-gas desulfurization facility is provided to improve the heat exchange efficiency while reducing the weight per unit volume by contacting the thermal element of the GG(gas-gas) preheater with the air current vertically, and to suppress the production of scales by blocking the flue gas from directly contacting with desulfurization gas. A heat exchanger for flue-gas desulfurization facility includes bundle type thermal elements(30) horizontally laminated at regular intervals in the case. Boiler fuel gas flows into the top of the thermal elements while fuel gas of an absorption tower flows into the bottom of the thermal elements. Each of the thermal elements has a plurality of through holes(32) formed in the longitudinal direction so that heat exchange is made as the fuel gas of the absorption tower and boiler fuel gas pass through the through holes in the vertical direction.
Abstract translation: 提供了一种用于烟道气脱硫设备的热交换器，以通过使GG（气体 - 气体）预热器的热元件与气流垂直接触来降低每单位体积的重量来提高热交换效率，并且抑制 阻止烟气与脱硫气体直接接触。 用于烟道气脱硫设备的热交换器包括在壳体中以规则间隔水平层压的束式热元件（30）。 锅炉燃料气体流入热元件的顶部，同时吸收塔的燃料气体流入热元件的底部。 每个热元件具有沿纵向方向形成的多个通孔（32），使得随着吸收塔和锅炉燃料气体的燃料气体在垂直方向上通过通孔而进行热交换。
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公开(公告)号：KR1020060131539A
公开(公告)日：2006-12-20
申请号：KR1020050052055
申请日：2005-06-16
Applicant: 한국전력공사
IPC: C23C26/00
Abstract: A method for oxidation resistant surface treatment of a Ni-based superalloy, which can simply form a SiO2 film with excellent oxidation resistance on a surface of a Ni-based superalloy used for parts such as a turbine engine operated at high temperature, is economical, and can be directly applied at a job site, and gas turbine parts employing the same are provided. In a method for oxidation resistant surface treatment of a Ni-based superalloy employed as a material for parts of an equipment operated at high temperature, the method comprises the step of uniformly coating a surface of the Ni-based superalloy with a silicon sealant. The equipment employing the Ni-based superalloy as a material for parts is an equipment operated at a high temperature of 1,000 deg.C or more. The method for oxidation resistant surface treatment is applied to a Ni-based superalloy treated with a heat-shield coating. The silicon sealant is a silicon sealant comprising polydimethyl siloxane as a principal component. The silicon sealant is uniformly coated to a thickness of 1 to 100 mum on the surface of the Ni-based superalloy. The Ni-based superalloy comprises, by weight percent, 10 to 20% of Cr, 5 to 15% of Co, 1 to 6% of Al, 1 to 6% of Ti, 0 to 5% of W, 0 to 4% of Ta, 0 to 3% of Mo and the balance of C, Fe, N and Ni.
Abstract translation: 在用于高温运转的涡轮发动机等部件的Ni系超合金的表面上，可以简单地形成具有优异的耐氧化性的SiO 2膜的Ni系超耐热合金的耐氧化表面处理方法是经济的， 并且可以直接施加在作业现场，并且提供使用该燃气轮机部件的燃气轮机部件。 在作为用于在高温下操作的设备的部件的材料的Ni基超级合金的抗氧化表面处理方法中，该方法包括用硅密封剂均匀地涂覆Ni基超合金的表面的步骤。 使用Ni基超合金作为部件的材料的设备是在1000℃以上的高温下工作的设备。 将用于抗氧化表面处理的方法应用于用隔热涂层处理的Ni基超合金。 硅密封剂是以聚二甲基硅氧烷为主要成分的硅密封剂。 硅基密封剂在Ni基超级合金的表面上均匀地涂覆至1至100μm的厚度。 Ni基超合金以重量％计含有10〜20％的Cr，5〜15％的Co，1〜6％的Al，1〜6％的Ti，0〜5％的W，0〜4％ 的Ta，0〜3％的Mo和余量的C，Fe，N和Ni。
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公开(公告)号：KR1020060124857A
公开(公告)日：2006-12-06
申请号：KR1020050044426
申请日：2005-05-26
Applicant: 한국전력공사
IPC: C23F1/10
Abstract: A dry cleaning method of a Ni-based superalloy for a gas turbine, which is economical by using a conventional equipment while removing oxides formed deep in cracks stably and effectively, and a component for the gas turbine capable of effectively removing oxides formed deep in the cracks by the dry cleaning method are provided. In a dry cleaning method of a Ni-based superalloy component for a gas turbine, which removes oxides existing on the surface of fine cracks of a regenerated product using HF gas in a regeneration process of a Ni-based superalloy component that is a component material of a gas turbine operated at a high temperature, the dry cleaning method comprises the steps of: coating a mixture of PTFE(polytetrafluoroethylene) powder and volatile fluid on the surface of the fine cracks, vacuum treating the mixture coated fine cracks for a predetermined time to infiltrate the mixture into the fine cracks; treating the mixture infiltrated fine cracks at a high temperature of 800 to 1,000 deg.C.
Abstract translation: 一种用于燃气轮机的Ni基超级合金的干洗方法，其通过使用常规设备同时去除了稳定有效地形成在裂纹深的氧化物，并且能够有效地除去深层形成的氧化物， 提供了通过干洗方法的裂纹。 在用于燃气轮机的Ni基超合金部件的干式清洗方法中，该Ni基超合金部件在作为成分材料的Ni系超合金部件的再生工序中除去使用HF气体的再生产品的微细裂纹表面存在的氧化物 的干燥方法包括以下步骤：在细裂纹的表面上涂覆PTFE（聚四氟乙烯）粉末和挥发性流体的混合物，将混合物涂覆的细裂纹真空处理预定时间 将混合物渗入细裂纹; 在800〜1000℃的高温下处理混合物渗入细裂纹。
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