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26 条记录 (耗时 0.032 秒)

    Self-regulating heater having a heat tape that stops tracking
    21.
    发明授权
    Self-regulating heater having a heat tape that stops tracking 失效
    具有停止跟踪的加热带的自调节加热器

    公开(公告)号：US4889975A

    公开(公告)日：1989-12-26

    申请号：US168650

    申请日：1988-03-16

    申请人： Richard W. Farkas ,  David A. Rock ,  James H. Anderson

    发明人： Richard W. Farkas ,  David A. Rock ,  James H. Anderson

    IPC分类号： H05B3/56

    CPC分类号： H05B3/56 ,  Y10T29/49083

    摘要： A phenomenon sometimes referred to as tracking can occur when the end of an electrical heater, made of two or more metal conductors and a conductive polymer web, comes into contact with water or other electrolytes which allow arcing to take place across the surface of the web. Tracking is stopped by holes in the web which prevent arcing from continuing up the length of the heat tape.

    摘要翻译： 当由两个或更多个金属导体和导电聚合物网制成的电加热器的端部与水或其它电解质接触时，可能会发生有时称为跟踪的现象，这些电解质允许电弧在网的表面上发生 。 通过网中的孔阻止跟踪，防止电弧持续加热带的长度。

    Turbopump unit for deep wells and system
    25.
    发明授权
    Turbopump unit for deep wells and system 失效
    涡轮泵单元用于深井和系统

    公开(公告)号：US4276002A

    公开(公告)日：1981-06-30

    申请号：US18882

    申请日：1979-03-09

    申请人： James H. Anderson

    发明人： James H. Anderson

    IPC分类号： F04D13/04 ,  F04D13/10 ,  F04B17/00

    CPC分类号： F04D13/04 ,  F04D13/10

    摘要： An improved turbopump unit and system for pumping hot geothermal liquids from deep wells to the earth's surface. The unit is of simplified single-shaft construction with reduced net reaction thrust on the shaft. Bearing wear is minimized by using hydrostatic bearings and by supplying lubricating liquid thereto which is taken from an intermediate stage of a centrifugal pump at the surface which supplies motive liquid to the turbine. An arrangement is provided that is operated by pressure of the lubricating liquid for maintaining all thrust-engageable surfaces carried by the shaft out of engagement at start-up and shut-down. Means operated by liquid pressure are provided for sealing the unit to the well casing and also for preventing undue tensile or compressive stresses in the supply conduit for the turbine motive liquid while maintaining an effective seal between the unit and the well casing.

    摘要翻译： 一个改进的涡轮泵单元和系统，用于将热地热液体从深井抽到地球表面。 该单元是简化的单轴结构，减轻了轴上的反作用力。 通过使用静液压轴承并且向从涡轮机提供动力液体的表面的离心泵的中间阶段提供润滑液，使轴承磨损最小化。 提供了通过润滑液体的压力操作的装置，用于在启动和关闭时将由轴承载的所有推力接合表面保持在脱离接合状态。 提供了通过液压操作的装置，用于将单元密封到井套管，并且还用于防止涡轮机动液体的供应管道中的不适当的拉伸或压缩应力，同时保持单元和井套管之间的有效密封。

    Dynamic positioning of sea thermal power plants by jet propulsion
    26.
    发明授权
    Dynamic positioning of sea thermal power plants by jet propulsion 失效
    海上火力发电厂通过喷气推进动态定位

    公开(公告)号：US4209991A

    公开(公告)日：1980-07-01

    申请号：US943712

    申请日：1978-09-19

    申请人： James H. Anderson

    发明人： James H. Anderson

    IPC分类号： B63H25/46 ,  F03G7/05 ,  F03G7/04

    CPC分类号： B63H25/46 ,  F03G7/05 ,  Y02E10/34

    摘要： A sea thermal power plant is provided with pumps of the propeller type for bringing up cold water and forcing it through suitable condensers or heat exchangers and for drawing a continuous flow of warm water from a surface layer of the sea and forcing it down through suitable heat exchangers or boilers of the plant. The water so drawn from the sea flows through the heat exchangers and is subsequently discharged therefrom, which action creates thrust thereby producing forces to move the plant over the water surface. The heat exchangers are provided with deflectors which control the direction of discharge to produce a reaction force in any desired direction to drive the power plant. The pumps have associated therewith pipes which have located therein, downstream of the pumps, bypass louvres or vanes which can be opened to discharge water directly into the sea to produce a higher thrust for moving or positioning the power plant.

    摘要翻译： 海上火力发电厂设有螺旋桨式泵，用于引导冷水并迫使其通过适当的冷凝器或热交换器，并从海面的表层吸取连续的温水流，并通过合适的热量强制下来 交换器或锅炉。 如此从海中抽出的水流过热交换器，随后从其中排出，该作用产生推力，从而产生将植物移动到水面上的力。 热交换器设置有偏转器，该偏转器控制排放方向以产生任何所需方向的反作用力来驱动动力装置。 泵具有与其中位于泵下游的管道，旁路百叶窗或叶片相关联的管道，其可以打开以将水直接排放到海中，以产生用于移动或定位发电厂的更高推力。