JPS6238923B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a cooling pipe for indirect cable cooling (hereinafter referred to as a cooling pipe), and more particularly to a support device for a cooling pipe that cools a cable arranged in a trough. .

FIG. 1 shows three cables arranged in a trough, and FIG. 2 shows a conventional cooling pipe support device for cooling the three cables. As shown in these figures, three cables 1 are arranged in a snake-like manner within a trough 2 so that their elongation and contraction due to thermal expansion are absorbed. These three cables 1 are arranged in an equilateral triangle so that a predetermined distance is maintained through a spacer 3 (hereinafter referred to as a spacer).
Three cables 1 arranged in an equilateral triangle are bound together with a binding string 4. Note that the spacer 3 is a fixed cleat type spacer 3a at the bending part of the cable 1 arranged in a snake shape, and a movable cleat type spacer 3b is placed at the other parts to move the thermal expansion and contraction of the cable 1 in the width direction. and absorb it.

The cable 1 laid in this manner is indirectly cooled (so-called indirect cooling) using a cooling pipe 5 filled with refrigerant to increase its power transmission capacity. It was placed along the top. Therefore, a cooling pipe support member 6 for supporting the cooling pipe 5 had to be provided separately, and the height of the trough 2 had to be increased. This has been a factor in making the installation work difficult as the number of lines increases when installing cables within a limited tunnel.
In addition, since the cooling pipe 5 was installed in a straight line on the cooling pipe support member 6, thermal expansion and contraction of the cooling pipe 5 could not be absorbed.

The present invention has been made in view of the above points,
The object thereof is to provide a support device for a cooling pipe for indirect cable cooling, which is easy to install.

That is, the present invention is characterized in that the cooling pipe for indirect cooling of the cable is supported by providing a supporting portion in the spacer.

The present invention will be explained below based on the illustrated embodiments. FIG. 3 shows an embodiment of the invention. Note that parts that are the same as those in the conventional model are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, the cooling pipe 5 is supported by providing a support part on the spacer 3.
The support portion was formed by an arcuate cooling tube receiving portion 5a created to match the diameter of the cooling tube 5. By doing this, when installing the cooling pipe 5, after the cooling pipe 5 is attached to the cooling pipe receiving part 5a, the cable 1
It is sufficient to simply tie the cooling pipes together with the binding string 4, and there is no need to provide a cooling pipe support material inside the trough 2 as in the conventional case. In addition, it is not necessary to increase the height of the trough 2, and the cooling pipe 5 can be arranged in a snake shape along the cable 1, so it is not difficult to absorb thermal expansion and contraction as in the conventional case, and thermal expansion and contraction can be absorbed well. I can do something.

Another embodiment of the invention is shown in FIG. In this embodiment, there are four cooling pipes 5. In this case as well, the cooling pipes 5 can be supported in the same manner as in the case where there are two cooling pipes 5. The same effects as in the case described above can be achieved. Although the cooling pipe 5 is supported diagonally in this figure, it may be supported horizontally.

As described above, in the present invention, the cooling pipe for indirect cable cooling is supported by providing a support part on the spacer, so there is no need to provide a cooling pipe support material as in the past, and the installation work is facilitated. A cooling pipe support device for indirect cable cooling can be obtained.

[Brief explanation of the drawing]

Figure 1 is a plan view showing the installation state of three cables of the cooling pipe support device for indirect cable cooling;
The figure shows the first support device for a conventional indirect cable cooling pipe.
3 is a sectional view corresponding to the line AA in FIG. 1, and FIG. 4 is a sectional view corresponding to the line AA in FIG. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 of another embodiment of the cable indirect cooling pipe support device of the invention. 1: cable, 2: trough, 3: phase separation spacer, 4: binding string, 5: cooling pipe for indirect cable cooling, 5a: cooling pipe receiving part (supporting part).

Claims (1)

[Scope of Claims] 1. In a device for supporting a cooling pipe for indirect cable cooling that cools three cables installed in a trough and spaced apart from each other at a predetermined interval by a spacer, the cooling pipe for indirect cable cooling is provided. 1. A support device for a cooling pipe for indirect cable cooling, characterized in that the pipe is supported by providing a support portion on the separation spacer. 2. Claim 1, wherein the support part is formed of an arcuate cooling pipe receiving part created to match the pipe diameter of the cooling pipe for indirect cooling of the cable.
A support device for a cooling pipe for indirect cooling of cables as described in .