公开(公告)号：EP3236249A1

公开(公告)日：2017-10-25

申请号：EP15870437.9

申请日：2015-11-16

申请人： Joint Stock Company "Akme-Engineering"

发明人： MARTYNOV, Petr Nikiforovich ,  CHERNOV, Michail Efimovich ,  STOROZHENKO, Alexsey Nikolaevich ,  SHELEMETYEV, Vasiliy Mihailovich ,  SADOVNICHIY, Roman Petrovich

IPC分类号： G01N27/417

CPC分类号： G01N27/417 ,  G01N27/40 ,  G01N27/4074 ,  G01N27/4077 ,  G01N27/4078 ,  G01N33/005

摘要： The device pertains to instrumentation technology and can be used in energy production, metallurgy, chemical industry to determine hydrogen concentration in fluid and gas media in a wide range of temperatures and pressures. The hydrogen detector for gas and fluid media comprises a selective membrane and a housing with a potential measuring unit inside, a ceramic sensing element made of solid electrolyte with a standard electrode in its cavity, a porous platinum electrode applied to the external layer of the ceramic sensing element, a sealed lead-in tightly fixed inside the housing above the ceramic sensing element, the potential measuring unit that passes through the center hole of the sealed lead-in and the lower bushing. The ceramic sensing element is designed as the cylindrical element interlinked with the bottom, located in the lower part of the cylinder. The external cylindrical surface of the ceramic sensing element is tightly connected to the inner side surface of the housing. The standard electrode is located in the inner cavity of the ceramic sensing element. The external part of the ceramic sensing element bottom is covered with a layer of porous platinum electrode. The end of the potential measuring unit central core is brought out to the standard electrode. The lower bushing designed as a tube is connected to the lower part of the housing from the side of the ceramic sensing element. The lower end of the lower bushing has a bottom with a center hole with the selective membrane attached. The lower free end of the selective membrane is tightly closed with a plug; the cavity limited by the inner surface of the lower bushing, the external part of the bottom of the ceramic sensing element and the inner surfaces of the selective membrane and the plug is leak-tight. The detector is additionally provided with an upper bushing and glass-ceramic sealant. The technical result is the enhanced service life and reliability of the hydrogen detector operation in a wide range of working medium parameters by providing leak-tightness of the inner cavity of the ceramic sensing element. 4 dependent claims, 1 figure.

摘要翻译： 该设备适用于仪器仪表技术，可用于能源生产，冶金，化工等行业，用于测定各种温度和压力下液体和气体介质中的氢气浓度。 用于气体和流体介质的氢气检测器包括选择性隔膜和内部具有电位测量单元的壳体，陶瓷感测元件由固体电解质制成并且在其腔中具有标准电极，多孔铂电极施加到陶瓷的外层 传感元件，在陶瓷传感元件上方紧密固定在外壳内的密封引入线，电位测量单元穿过密封引入线和下部套管的中心孔。 陶瓷传感元件设计为与底部相连的圆柱形元件，位于圆柱体的下部。 陶瓷感测元件的外部圆柱形表面紧密连接到壳体的内侧表面。 标准电极位于陶瓷传感元件的内腔中。 陶瓷传感元件底部的外部覆盖有一层多孔铂电极。 电位测量单元中央核心的末端被引出到标准电极。 设计为管的下部套管从陶瓷传感元件的侧面连接到外壳的下部。 下部衬套的下端有一个带有中心孔的底部，并附有选择性膜片。 选择性膜的下部自由端用塞子紧密封闭; 由下部衬套的内表面，陶瓷传感元件的底部的外部部分以及选择性膜和插塞的内表面限定的空腔是密封的。 探测器另外配有上部衬套和玻璃陶瓷密封剂。 技术结果是通过提供陶瓷传感元件的内腔的密封性，在广泛的工作介质参数下提高了氢气检测器操作的使用寿命和可靠性。 4个从属权利要求，1个数字。