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    • 6. 发明公开
    • THERMOCOUPLE FOR GAS TURBINE ENVIRONMENTS
    • 用于燃气轮机的热电偶
    • EP3159667A1
    • 2017-04-26
    • EP16200728.0
    • 2009-07-01
    • Siemens Energy, Inc.
    • Kulkarni, Anand A.Mitchell, David J.Roesch, Edward R.
    • G01K7/02G01K7/04F01D17/08F01D5/28G01K13/02
    • G01K7/028F01D5/288F01D17/085G01K7/04G01K2013/024G01K2217/00
    • An instrumented gas turbine component comprising: a metal substrate (22); a first layer of electrically insulating material (34) that maintains a resistance greater than 0.5 mega ohms above 1100°C deposited above the metal substrate (22), the first layer of electrically insulating material (34) comprising yttrium aluminum garnet; a thermocouple (12) formed on the first layer of electrically insulating material (34), the thermocouple (12) comprising a first leg (26') comprising a first pure metal and a second leg (28') making ohmic contact with the first leg (26'); a second layer of electrically insulating material (35) that maintains a resistance greater than 0.5 mega ohms above 1100°C deposited above the thermocouple (12), the second layer of electrically insulating material (35) comprising yttrium aluminum garnet; and a ceramic thermal barrier coating (20) deposited over the second layer of electrically insulating material (35).
    • 一种仪表式燃气涡轮机部件,包括:金属基板(22); 第一层电绝缘材料(34),所述第一层电绝缘材料(34)在所述金属衬底(22)上方沉积高于1100℃的高于0.5兆欧的电阻,所述第一层电绝缘材料(34)包含钇铝石榴石; 在第一层电绝缘材料(34)上形成的热电偶(12),所述热电偶(12)包括包含第一纯金属的第一腿(26')和与所述第一层 腿(26'); 第二层电绝缘材料(35),所述第二层电绝缘材料(35)在热电偶(12)上方沉积高于1100℃的高于0.5兆欧姆的电阻,所述第二层电绝缘材料(35)包含钇铝石榴石; 和沉积在第二层电绝缘材料(35)上的陶瓷热障涂层(20)。
    • 8. 发明授权
    • Thermocouple probe
    • 热电偶探头
    • EP2818839B1
    • 2016-08-03
    • EP14173345.1
    • 2014-06-20
    • WESTON AEROSPACE LIMITED
    • Ewing, JamesLoveless, Daniel
    • G01K1/12G01K7/04G01K13/02
    • G01K7/02G01K1/12G01K1/20G01K7/04G01K13/02G01K2205/00
    • A cooled thermocouple arrangement (1) including a thermocouple (2) comprising two wires (3,4) joined at a first sensing end (5) to define a hot thermocouple function. At least a portion of the wires (3,4) are in thermal communication with a cooling arrangement, and the cooling arrangement has an inlet (14) for coolant and an outlet (15) for coolant. The thermocouple probe arrangement (1) includes a first inlet temperature sensor (21) for determining the temperature of the coolant as it enters the cooling arrangement, and a flow rate sensor (20) for determining the flow rate of coolant passing through the cooling arrangement. The thermocouple probe arrangement (1) includes connectors for connecting the outputs from the thermocouple (2), first inlet temperature sensor (21) and the flow rate sensor (20) to a correction data processor (23) whereby the data processor can correct the temperature sensed by the thermocouple to take account of the effect of the cooling arrangement. The pair of thermocouple wires (3,4) are arranged inside a sheath or casing, and a cooling jacket (12) is provided around the thermocouple probe. The cooling jacket (12) includes a pair of concentric tubes (16,17) defining a return coolant circuit from the end of the probe proximal the connectors (8), to a portion of the probe distal from the connectors, and then back to the proximal end (8) of the probe, and the portion of the thermocouple probe containing the sensing end (5) of the thermocouple projects from the distal end of the cooling jacket (12).