A Divertor Structure of Dual Cooling Loops Applicable to Tokamak Fusion Reactor
A technology of tokamak and fusion reactor, applied in the field of double cold circuit divertor structure, can solve the problems of chromium zirconium copper cooling tube damage, thermal and mechanical performance degradation of copper and copper alloys, equipment shutdown maintenance and other problems, so as to reduce maintenance times , rapid cooling, reducing the effect of pressure drop along the way
Active Publication Date: 2019-05-31
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
However, a large number of neutrons will be produced in the fusion reaction. Under the environment of neutron irradiation, the copper element will show high activity, and the thermal and mechanical properties of copper and copper alloys will be seriously degraded.
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[0022] See attached picture.
[0023] A dual-cooling circuit divertor structure suitable for Tokamak fusion reactors, characterized in that the divertor structure consists of an inner baffle 1, an inner strike plate 2, an inner return flow plate 3, a dome plate 4, and an outer return flow plate. Flow plate 5, outer striking plate 6, outer baffle plate 7, transition support one 8, transition support two 14, transition support three 15, transition support four 17, transition support five 18, transition support six 19, transition support seven 21, box Body support 12, cooling pipe 9 and related fixed plate 22, connecting plate 21 and connector pins etc.; Board, transition support three and intermediate support and so on.
[0024] The inner percussion plate 2 and the outer percussion plate 6 are made of tungsten block 25, copper tube 24 and chromium-zirconium copper tube 23 through the hot isostatic pressing process and then vertically juxtaposed. The copper tubes 24 on the plat...
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The invention discloses a dual-cold-loop divertor structure suitable for a future Tokamak fusion reactor. The dual-cold-loop divertor structure comprises a box body support, wherein the inner side of the box body support is provided with an inner baffle plate, an inner striking plate, an inner backflow plate, a dome plate, an outer backflow plate, an outer striking plate and an outer baffle plate which are pipe penetrating structures and are matched with the inner side contour of the box body support in an erected manner by means of transition supports; a flow collecting cavity correspondingly communicated with one transition support is formed in the transition support; four cooling pipes are arranged in the box body support, and are respectively two water inlet pipes and two water outlet pipes; and a dual cold loop is formed by a parallel loop of the inner and outer striking plates and a parallel loop of the inner and outer baffle plates and a dome plate region. The dual-cold-loop divertor structure realizes rapid cooling of the divertor structure, improves the cooling efficiency, reduces the pressure drop along the course of a coolant in the flowing process, prolongs the service life of a first wall of the divertor, reduces the maintenance times of the divertor, and has the advantages of saving time, saving money, being stable, safe, efficient, reliable and the like.
Description
technical field [0001] The invention relates to the technical field of divertors for Tokamak fusion reactors, and mainly relates to a divertor structure for dual cooling circuits suitable for Tokamak fusion reactors. Background technique [0002] Magnetic confinement fusion energy is considered to be the most likely way to solve the human energy crisis in the future. Tokamak nuclear fusion device is one of the most effective means to study magnetic confinement fusion energy. As the core component of the tokamak nuclear fusion device, the divertor's primary function is to discharge the heat energy and particle flow from the central plasma in time. At present, the most mature structure of the plasma-facing unit that forms the first wall of the divertor is the ITER tungsten / copper through-tube structure, which is composed of a tungsten block (facing the plasma material), a copper tube (intermediate transition Layer) and chromium-zirconium copper (cooling pipe structural mater...
Claims
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IPC IPC(8): G21B1/05G21B1/13
CPCG21B1/057G21B1/13Y02E30/10
Inventor 卯鑫彭学兵陆坤宋云涛覃世军张建武刘鹏钱新元刘萍
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI