JPS5938683A - Nuclear fusion blanket element - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention provides a lithium ceramic block with a plug insertion hole in order to increase the effective thermal conductivity of the entire blanket packed layer made up of all blanket blocks in a nuclear fusion reactor. By inserting a molybdenum (Mo) or nickel (Ni) plug, the
Lithium ceramics such as lithium oxide, lithium oxide, and alumina have been considered promising as fusion blankets. Because the thermal conductivity of IIi solids or compressed bodies is low, the design point is marked as a dot. In other blanket designs, lithium oxide spheres are At present, no concrete plan has been proposed to improve heat transfer.
In view of the circumstances, I piled up the blocks of blankets with the same thing. ! DESCRIPTION OF THE PREFERRED EMBODIMENTS A fusion Plunkett element is provided for the purpose of improving A conductivity (as a whole), i.e., effective thermal conductivity. The details will be explained in detail.ff1N Figure 1 is an external perspective view of a ceramic rectangular parallelepiped block according to the present invention. They penetrate from the upper surface to the lower surface of the block 1, and it is appropriate to provide a plurality of them.

In addition, in the figure, Hd gas flows through the three-piece block 1 from the upper surface to the lower surface ν, and as shown in FIG.
It exists as a flow hole 3 even when a large number of lithium ceramic block elements are combined, and when a neutron is incident on the one-notium seven-layer stack and tritium is recovered, tritium flows out from the lithium ceramic block element group, for example, through the tritium recovery mechanism (Fig. Fig. 2 shows a leg 4a of a plug 4 made of molybdenum or nickel in the block 1 of Fig. 1. FIG. 4 is a perspective view showing the inserted bracket element 5, the plug 4 being connected to the block l;
The plug 4 is composed of a flat plate portion having the same shape as the horizontal cross section of the plug 4 and a plurality of leg portions 4a extending vertically from the flat plate.
As shown in Fig. 1, there is a HtJf flow hole 3v in the flat plate part of the
Holes are formed at locations corresponding to c. FIG. 3 is a cross-sectional view taken along the line A--A in FIG. 2, showing a state in which the blanket elements 5 are stacked in two horizontal rows and two upper and lower stages.

Note that the number of stacks is set appropriately depending on the designed size of the fusion reactor.

Therefore, since the thermal conductivity of the lithium oxide sintered body itself is low, if the lithium oxide sintered body itself is stacked together, it will be placed in a neutron environment like a fusion reactor blanket and will generate heat.
- Since it is difficult for the raw heat to escape, the temperature IW of the blanket may rise to 25' and, in extreme cases, reach the melting point of lithium oxide. However, when combined with the plug of the present invention, A blanket element? Because of the usage, the generated heat is transmitted to the molten metal rag or the nickel rag and flows to the cooling body (not shown). It is possible to suppress the temperature rise of the blanket by improving the temperature of the blanket.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the lithium ceramic block according to the present invention, Fig. 2 is a perspective view showing the state in which the two ladders are fully inserted into the glue ceramic block, and the third factor is Fig. 2 FIG. 2 is a cross-sectional view showing a state in which the planter/plants are piled up. L... Block, 2... Bladder insertion hole, 3... Distribution hole, 4... Plug, 4a... Leg, 5... Blanket Kanametsuchi Patent applicant Mitsubishi Atomic Kanigyo Co., Ltd. Company agent Patent attorney Hideaki Sato - 4th procedural amendment (spontaneous) October 7, 1980 1, 4+ indications 1981 Patent Application No. 148731, Title of invention
Nuclear Fusion Blanket Aniso 3 Relationship with the person making the amendment case % Hariyama Ganto, -),, 11 J/ 1j1 Chiyo 11, Tokyo
” Ward Otemachi-6-1-4, Agent [Details 1; Iiii l “〜゛453-

Claims (1)

[Claims] In a blanket for a nuclear fusion reactor, plugs made of molybdenum or nickel are inserted from the top surface of the lithium ceramic block through the plurality of plug insertion holes penetrating the lithium ceramic block from the top surface to the bottom surface VC, and the plugs are inserted through the center portions of the block and plugs. A nuclear fusion blanket characterized by having flow holes.