JPH088476Y2 - Diverter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a diverter which is a member forming a reactor inner wall of a fusion reactor.

(Prior Art) When a diverter with a convex structure, which is a component of the inner wall of the fusion reactor, is assembled from an access port provided on the outer surface of the fusion reactor, the hole of the access port has the same shape as the vertical prism of the diverter. The size is the same and the hole size is smaller than that of the diverter, so the diverter cannot pass through the access port if it is an integral body. Therefore, as shown in FIG. 6, the diverter body (a) is divided vertically so that it can pass through the access port, and two L-shaped side blocks (b) and (b) and one I-block. It is divided into three blocks, a molded center block (c). Two
The side blocks (b) and (b) are first assembled in the access port, and finally the center block (c) is inserted into the access port, whereby the diverter body (a)
Can be assembled.

(Problems to be solved by the invention) In the case where the cross section of each block of the diverter body (a) which is time-divided has a simple rectangular shape as shown in FIG.
Assembling is performed by inserting the first side block (b) into the access port (d) as shown in Fig. 7a and sliding it sideways as shown in Fig. 7b. After being installed in the predetermined position of (d), the second side block (b) is inserted as shown in FIG. 7c, and it is slid sideways as shown in FIG. Assembled at a predetermined position of d) and then assembling by inserting a center block (c) into the space as shown in FIG. 7e, or at that time, as shown in FIG. 7c, a second side block. When (b) is inserted, there is no working space for installing a jack or the like on the back side of the first side block (b) inserted first and the back side of the second side block (b) inserted next. , That work must be done outside the access port. However, in this case, since each block obtained by dividing the diverter body is a large heavy object having a weight of several tons, there is a problem that it is extremely difficult to move the access port from the outside. In particular, the work of assembling and disassembling the components of the inner wall of the nuclear fusion reactor must be performed by remote control in order to avoid radiation exposure, and a method of dividing the diverter that facilitates handling is desired.

The present invention has been made in view of the above-mentioned circumstances, and the cross-sectional shape of each block of the diverter whose vertical direction is divided into three is such that the center block is a hook type and the side block is an L type. Therefore, even when the second side block is inserted into the access port, a work tool such as a jack is installed on the side of the access port where both side blocks come into contact with each other to secure a working space in which the work can be performed. .

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 4 corresponding to the embodiments. The present invention is a prism (1a) and the prism. A diverter main body (1) having a front convex structure consisting of a base part (1b) projecting to both sides from the part (1a), and an access port (5) having the same dimensions as the prismatic part (1a).
And a hook-shaped center block (3) having a step portion (2) whose lateral cross section is offset to both sides in the diverter vertically divided by the prism portion (1a) so as to be inserted into
It is characterized in that the center block (3) is vertically divided into two L-shaped left and right side blocks (4) and (4) which engage with the step portions (2) on both sides.

(Operation) Then, according to the present invention, the first side block is inserted into the access port by the above-mentioned means, and the side block is slid sideways into the predetermined position, and then the second side block is inserted into the access port. When this is done, the L-shaped cross-sections of both side blocks will face each other on their own, so a rectangular space will be created between both side blocks, and by arranging a work tool such as a jack in this space, the second The side blocks are also slid sideways to be installed in a predetermined position, and after the both side blocks are installed, the center block is inserted into the space to complete the installation work.

(Embodiment) An embodiment of the present invention will be described below with reference to Figs. 1 to 3. Fig. 1 is a perspective view showing an assembled state of a diverter body (1) in a fusion reactor, and Fig. 2 is a diverter. A perspective view of the main body (1) is shown. The diverter main body (1) comprises a prismatic portion (1a) and a base portion (1b) projecting to both sides from the prismatic portion (1a) as shown in FIG. A front convex structure is formed, and the diverter body (1) further includes a prism (1
a) is a hook-shaped center block (3) having a stepped portion (2) whose lateral cross section is deviated to both sides, and an L-shaped engagement with the stepped portions (2) on both sides of the center block (3) Vertically divided into two side blocks (4) and (4) on the left and right.

Thus, as shown in FIGS. 4 and 5, to assemble the diverter main body (1) in the access port (5) having the same shape as the prismatic portion (1a), the access port as shown in FIG. Insert the first side block (4) in (5), slide it sideways as shown in Figure b to assemble it in place, and then insert it into two as shown in Figure c. Both side blocks (4) when inserting eye side block (4)
Since the cross-sectional shape of (4) is L-shaped, a rectangular space (6) is formed between the two side blocks (4) and (4). Therefore, a work tool such as a jack is formed in this space (6). As a result, the second side block (4) can also be slid sideways to be installed in a predetermined position as shown in FIG. 4) The assembly is completed by inserting the center block (3) between (4).

(Effects of the Invention) As described above, according to the present invention, the diverter body engages with a hook-shaped center block having a stepped portion with its cross-section eccentric to both sides and the stepped portion of the center block. Since it is divided vertically into two L-shaped left and right side blocks, both side blocks can secure a working space in the access port, so that the assembly / disassembly work can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembled state of a diverter body according to an embodiment of the present invention. FIG. 2 is a perspective view of the diverter body,
FIG. 3 is a perspective view showing a divided shape of the diverter body, and FIG.
FIG. 7 is a side view showing the procedure for assembling the divided block, FIG. 5 is a sectional view taken along the line II-II in FIG. 4, FIG. 6 is a perspective view showing the divided shape of the conventional diverter body, and FIG. It is a side view which shows the assembly procedure of a division block. (1) …… Diverter main body, (1a) …… Square column part (1b) …… Base part, (2) …… Step part (3) …… Center block, (4) …… Side block (5)… … Access port

Claims (1)

[Scope of utility model registration request] 1. A diverter main body having a front convex structure composed of a prism and a base projecting to both sides from the prism, and is vertically divided by the prism so that the main body is inserted into an access port having the same size as the prism. In the diverter described above, the prismatic portion has a hook-shaped center block having a stepped portion whose lateral cross section is deviated to both sides, and L-shaped left and right 2 which engage with the stepped portion of the center block.
A diverter characterized by vertical division into individual side blocks.