Super phase change heat exchanger

Abstract

The invention discloses a super phase change heat exchanger which comprises a heat exchanger main cavity body, wherein the structure of the heat exchanger main cavity body is ahollow metal cavity body which is in revolution closing along the axis, and two ends of the heat exchanger main cavity body are respectively provided with a hollow shaft; the hollow shaft on one end or the hollow shaft at the two ends of the heat exchanger main cavity body are fixedly connected with a transmission mechanism, and each transmission mechanism is connected with a motor; and cavities of the hollow shafts are communicated with a cavity of the heat exchanger main cavity body, the tail end of the hollow shaft of one end of the heat exchanger main cavity body is provided with a heat-transfer medium filling opening, and the tail end of the other hollow shaft of the other end of the heat exchanger main cavity body is provided with a pumping outlet of a heat-transfer medium. The super phase change heat exchanger provided by the invention simultaneously, ingeniously and comprehensively utilizes designs of vacuum negative pressure enhanced phase change heat transfer, centrifugal force, rotation surface and the like, thereby effectively avoiding boiling gas films formed on the inner wall of the heat exchanger main cavity body; and the heat exchanger operates in a heat transmission stage from the high-efficiency cavity to a heat-transfer medium, and a high-efficiency phase change operation stage of the heat-transfer medium, so that the super phase change heat exchanger is realized.

Description

technical field [0001] The invention relates to a heat exchanger suitable for targets or receivers with high power density such as high-power and high-current particle beams and strong lasers. Background technique [0002] Intense neutral beam injection heating is an effective heating method for controlling nuclear fusion devices. The particle beam of the neutral beam injector has a heating power of megawatt level, and its own power measurement target needs efficient heat exchange measures. The currently known measurement target structure is a target plate with water pipe cooling inside, and the surface of the target plate that receives the heat load should be placed obliquely facing the incoming beam or strong laser. The oblique placement is to increase the receiving area and reduce the thermal power per unit area, and some water-cooled interiors are equipped with spoiler elements to increase heat exchange capacity. The disadvantage is that although the inclined arrangemen...

AI Technical Summary

Problems solved by technology

The disadvantage is that although the inclined arrangement of the target surface increases the total area receiving the heat load, the corresponding mechanical size is greatly increased, especially along the length direction of the beam; in addition, although the water-cooled pipeline increases the turbulence element, it still mainly relies on water The temperature rise and heat capacity are used to take away heat, and the evaporation phase change of water is not well used to take away heat, so the heat transfer capacity is limited

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