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    • 4. 发明授权
    • Apparatus for indirectly determining the temperature of a fluid
    • 用于间接测定流体温度的装置
    • US4948264A
    • 1990-08-14
    • US882564
    • 1986-07-07
    • Richard B. Hook, Jr.
    • Richard B. Hook, Jr.
    • G01K13/02
    • G01K13/02
    • A technique for indirectly determining the temperature of a fluid includes directing at least a portion of the fluid around the outside of a thermally conductive body so as to produce a substantially uniform temperature therein. The fluid temperature is then determined by measuring the resulting temperature within the body. In one embodiment, the fluid is directed around the body by enclosing the body in a shell which has an inlet opening, an outlet opening, and at least one passageway connecting the inlet opening to the outlet opening. In an embodiment which is particularly useful for gas turbine applications, the body is located inside of the outer casing of the turbine and is connected to a guide tube which extends through the outer casing in such a manner that the means employed for measuring the temperature within the body is insertable into and removable from the body through the guide tube. For gas turbines having two or more turbine wheel stages, the inlet opening may be connected in flow communication with a wheelspace of a relatively forward one of the stages, and the outlet opening may be connected to a wheelspace of a stage located downstream of the forward stage, so that the pressure differential created between the stages during turbine operation causes at least a portion of the gas located in the forward wheelspace to pass into the inlet opening, through the connecting passageway, and out of the outlet opening.
    • 用于间接地确定流体温度的技术包括将流体的至少一部分引导到导热体外部,以便在其中产生基本均匀的温度。 然后通过测量体内产生的温度来确定流体温度。 在一个实施例中,流体通过将主体包围在具有入口开口,出口开口和连接入口与出口开口的至少一个通道的壳体中而引导身体周围。 在对燃气轮机应用特别有用的实施例中,主体位于涡轮机的外壳内部,并且连接到引导管,该导管延伸穿过外壳,使得用于测量内部温度的装置 身体可以通过导管插入身体并从身体移除。 对于具有两个或多个涡轮机叶轮级的燃气轮机,入口开口可以与相对前进的一个级的轮的空间流动连通地连接,并且出口开口可以连接到位于向前的下游的台的车轮空间 使得在涡轮机操作期间在级之间产生的压力差使得位于前轮空间中的气体的至少一部分通过连接通道进入入口开口并且离开出口。