A plasma-oriented component and fusion device
A plasma-oriented technology, applied in the field of nuclear fusion, can solve problems such as high brittleness, easy crack formation, and failure of plasma-oriented components
Active Publication Date: 2022-03-11
ENN SCI & TECH DEV +1
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Problems solved by technology
[0004] The embodiment of the present invention provides a plasma-facing component, which can solve the problem that part of the tungsten material in the current plasma-facing unit is in a low-temperature environment and a part is in a high-temperature environment, which is relatively brittle and easy to form cracks, which leads to the failure of the plasma-facing component. problem
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. connected, or integrally connected. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situation...
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Abstract
The invention discloses a plasma-oriented component and a fusion device, relates to the field of nuclear fusion technology, and can solve the problem that part of the tungsten material in the current plasma-oriented unit is in a low-temperature environment and a part is in a high-temperature environment, which is relatively brittle and easily forms cracks. This leads to the problem of failure of plasma-oriented components. The plasma-facing component includes a plasma-facing unit and a cooling unit, the plasma-facing unit is mainly composed of tungsten material, and at least includes a heat-resistant grain layer and a cold-resistant grain layer, and the heat-resistant grain layer is located near the plasma-facing unit The side of the thermal shock of the body, the cold-resistant grain layer is located on the side facing the plasma unit away from the plasma thermal shock; facing the plasma unit along the direction from the heat-resistant grain layer to the cold-resistant grain layer, the grains of the tungsten material The size changes in a gradient from large to small. The invention is used to directly face the plasma and bear the thermal shock of the plasma.
Description
technical field [0001] Embodiments of the present invention relate to the field of nuclear fusion technology, in particular to a plasma-oriented component and a fusion device. Background technique [0002] Fusion energy is the most ideal clean energy for human beings in the future. The International Thermonuclear Experimental Reactor uses a tokamak device to realize the controllable utilization of fusion energy. When the tokamak device is in operation, the plasma-facing material in the device will be subjected to the irradiation of high-energy particles and the action of strong heat flow. The outer surface facing the plasma material interacts with the plasma in the annular vacuum chamber, and is subjected to strong heat flow impact, and is in a high-temperature environment; while the other end away from the annular vacuum chamber is in contact with the cooling unit, and is in a low-temperature environment. In this way, a very high temperature gradient and a huge thermal st...
Claims
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IPC IPC(8): G21B1/05G21B1/11
CPCG21B1/057G21B1/11Y02E30/10
Inventor 程杨洋段慧玲孟垂舟余龙
Owner ENN SCI & TECH DEV