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    • 4. 发明申请
    • COOLING SYSTEM FOR HIGH POWER VACUUM TUBES
    • 大功率真空管冷却系统
    • WO2009039128A1
    • 2009-03-26
    • PCT/US2008/076580
    • 2008-09-17
    • RAYTHEON COMPANYWEBER, Richard, M.
    • WEBER, Richard, M.
    • H01J17/28H01J19/36H01J23/00H01J23/033
    • H01J17/28H01J19/36H01J23/005H01J23/033
    • According to one embodiment, a two-phase cooling system (10) includes a condensing heat exchanger (24) fluidly coupled to an evaporator assembly (18A) and a pressure controller (28). The condensing heat exchanger condenses a coolant from a vapor phase to a liquid phase by removing heat from the coolant. The evaporator assembly is thermally coupled to a vacuum tube and operable to receive liquid coolant from the condensing heat exchanger, cool the vacuum tube by evaporating the coolant from the liquid phase to the vapor phase, and transporting the evaporated coolant to the condensing heat exchanger. The pressure controller maintains the pressure of the coolant in the evaporator assembly at a sub-ambient pressure to lower the boiling point of the coolant for reducing the operating temperature of the vacuum tube.
    • 根据一个实施例,两相冷却系统(10)包括流体耦合到蒸发器组件(18A)和压力控制器(28)的冷凝热交换器(24)。 冷凝热交换器通过从冷却剂中除去热量将冷却剂从气相冷凝成液相。 蒸发器组件热耦合到真空管并且可操作以从冷凝热交换器接收液体冷却剂,通过将冷却剂从液相蒸发到气相来冷却真空管,并将蒸发的冷却剂输送到冷凝热交换器。 压力控制器将蒸发器组件中的冷却剂的压力保持在低于环境压力以降低冷却剂的沸点以降低真空管的操作温度。