JPS62134598A - Winder for instrumentation cable - 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] [Technical Field of the Invention] The present invention relates to an instrumentation cable winding device for winding long radioactive instrumentation cables used in nuclear power plants and the like for replacement. .

[Technical background of the invention and its problems]

Many of the thermocouples and other instruments installed in nuclear power plants are used under strong radiation, and the lifespan of the instruments is much shorter than the plant lifespan, so they must be replaced during the plant lifespan.

During replacement, the instrumentation cable is also radiated, so it must be handled with a replacement device that has a shielding function.

Conventionally, long instrumentation cables that are radiated have their ends connected to the
As shown in figure O, the reel 1 is fixed with a fixing metal fitting and stored in a shielded container together with the cartridge 2, and the reel 1 is rotated from outside the container by a drive motor and wound into the cartridge 2, so that one winding is completed. Once completed, transport the shielded container to the designated disposal location s1. Transport.

The entire cartridge is removed from the shielded container by remote control and stored for disposal.

Therefore, the replacement work is done one by one, which takes time. Also, the cartridges are disposed of along with the instrumentation cables, which increases cartridge costs and storage space, and also makes it necessary to dispose of the cartridges themselves in the future. There are problems such as:

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a rational instrumentation cable winding device that can process a plurality of instrumentation cables in one operation and can minimize disposal costs and disposal space.

[Summary of the invention]

The present invention provides an instrumentation cable winding device for winding activated instrumentation cable for disposal, and a shielding device having an entrance opening/closing door for the instrumentation cable and an exit opening/closing door for the wound instrumentation cable. a container, a take-up reel provided in the shielded container and driven from outside the shielded container to wind the instrumentation cable, and a guide rod that opens and closes the winding groove of the take-up reel;
A binding plate that is temporarily set in the winding groove of the take-up reel to bind the wound instrumentation cable tab; and a plate that presses the binding plate from the outside and bends it so as to bind the wound instrumentation cable tab. It is equipped with a bending rod and a removal rod for transferring the instrumentation cable tab tied with the above-mentioned binding plate onto a hanger rod in a temporary storage space in the shielded container, whereby the wound instrumentation cable is tied up with a simple binding plate. The aim is to reduce disposal costs and waste space by making it possible to dispose of the product by itself.

[Embodiments of the invention]

An embodiment of the invention is shown in FIGS. 1 and 2.

FIG. 1 is a side sectional view, and FIG. 2 is a front sectional view.

In FIG. 1, the drive shaft of the take-up reel 5 is supported by a bearing passing through the shielding container 4, and is driven by a motor 9 via a speed reducer.

Various rods 10, 11, 12, 14 are provided through the shielding container 4, and a door valve 7.
8 is provided so that it can be closed, and a lamp 13 for internal illumination is attached to the upper part.

In addition, as shown in FIG. 2, a viewing window 2 is provided on the side of the shielding container 4.
0 is provided, and the bushing rod 15 passes through,
Furthermore, a plurality of binding plates 16 as shown in FIG. 3 are set on the winding rule 5 using a pressing spring 18 and a fixing plate 19 as shown in FIG.

After the binding plate 16 is set in the groove of the take-up reel 5,
It is held down by the pressing spring 18 and the fixing plate 19, so that the winding wheel 5 does not shift or fall during rotation.

The number of binding plates 16 set is equal to the number of cables to be wound.

A plurality of guide rods 10 are set at the end of the take-up reel 5, as shown in FIG. 1, and form a take-up groove when winding the instrumentation cable.

The plate bending rod 12 and the removal rod 14 are fixed close to the inner wall of the shielding container 4 so as not to interfere with the take-up reel 5 during the winding operation.

When the above setup is completed, the winding device is set at a predetermined position with respect to the instrumentation cable to be replaced, the terminal side of the instrumentation cable is cut off, and the fixing metal fitting 17 is fixed to the terminal end thereof. A ball latch mechanism is embedded in both sides of the fixture 17.

Next, the instrumentation cable 3 is inserted into the shielding container 4 through the guide tube 6, and the fixing fitting 17 is pushed into the groove of the take-up reel 5 with the bushing rod 15 while monitoring through the viewing window 20.

When pushing in, the ball of the fixture 17 is pulled in at the groove entrance,
When pushed further in, the instrumentation cable 3 protrudes in the widened groove, whereby the instrumentation cable 3 is fixed to the take-up reel by the fixing fitting 17.

The preparation for winding is now complete, and the drive motor 9 is driven to wind the instrumentation cable 3 onto the take-up reel 5.

When the winding is completed, the bind plate 16 is bent and the cable 3 is sprung.

The bind plates 16 are set at a plurality of dispersed locations on the take-up reel 5, and each bind plate 16 is bent after being rotationally positioned at the position of the plate bending rod 12.

The plate bending rod 12 is each pushed forward to a lateral position of the binding plate 16 and pinches the binding plate 16 by rotating approximately 90 degrees. Thereafter, one of the rods is pushed to bend the binding plate 16.

The binding plate 16 is bent at two places to bind the instrumentation cable 3, as shown in FIG. The tied instrumentation cable is removed from the take-up reel 5 and moved to a temporary storage space.

That is, as shown in FIG. 9, the fixing metal fitting 17 set on the winding wheel 5 is rotationally positioned at a predetermined position, and then the guide rod 10 is rotated about 90 degrees to open one side of the V-groove. At this time, the hanger rod 11 is also rotated approximately 90 degrees,
The protrusion at the tip is turned sideways to prevent the instrumentation cable 3 from falling off.

After that, the removal rod 14 is pushed in, the fixing metal fitting 17 is pushed out from the take-up reel 5, and the instrumentation cable 3 is transferred onto the hanger rod 11. Note that the bottom of the groove on the take-up reel 5 is tapered in one direction. Because there is.

The instrumentation cable 3 can be easily removed.

Although the binding plate 16 is held down by a pressing spring 18, it can be easily opened when the instrumentation cable 3 is removed.

As a result, the instrumentation cable 3 wound around the winding wheel 5 is transferred onto the hanger rod 11, and the groove is again formed by the guide rod 10 in order to wind up the next instrumentation cable.

When the instrumentation cables have been replaced and the plurality of instrumentation cables are moved onto the hanger rod 11, these instrumentation cables are transported to a disposal storage location while being stored in a winding device, and are placed on a storage container. Set.

Here, the door valve 8 is opened, the guide rod 10 is retracted, the hanger rod 11 is rotated approximately 90 degrees, and the shielding container 4 is closed.
When pulled toward the inner wall, the instrumentation cable 3 falls into the storage container.

〔Effect of the invention〕

As explained above, by using the winding device of the present invention, it is possible to process multiple instrumentation cables at once, and the waste is reduced to instrumentation cables and inexpensive binders, reducing disposal costs and disposal space. reduction is possible.

[Brief explanation of drawings]

Figures 1 and 2 are a side sectional view and a front sectional view, respectively, showing an embodiment of the present invention, Figure 3 is a diagram showing an example of a binding plate, and Figure 4 is a diagram showing the binding plate set on a take-up reel. Figure 5 shows the state in which the end of the instrumentation cable is set on the take-up reel, Figure 6 shows the plate bending rod, and Figure 7 shows the state when the bind plate is bent by the plate bending rod. Figure 8 is a diagram showing the bending position of the binding plate when binding the instrumentation cable, Figure 9 is a diagram showing the state in which the bound instrumentation cable is moved to the storage space in the shielded container, FIG. 10 is a diagram showing an example of a conventional instrumentation cable winding device. 1... Reel 2... Cartridge 3...
- Instrumentation cable 4... Shield container 5... Take-up reel 6... Guide tube 7.8... Door valve 9.
...Drive motor 10...Guide rod 11...
Hanger rod 12...Plate bending rod 13...
Lamp I4...Removal rod 15...Push rod 16...Binding plate 17...Fixing bracket 18...Pushing spring I9...Fixing plate 20...
・Viewing window agent Patent attorney Nori Ken Chika Yudo Hirofumi MitsumataFigure 1Figure 3Figure 4Figure 5Figure 6Figure 7Figure 8Figure 9Figure 10

Claims (1)

[Claims] An instrumentation cable winding device that winds up activated instrumentation cable for disposal includes a shielding container having an entrance opening/closing door for the instrumentation cable and an exit opening/closing door for the wound instrumentation cable; A take-up reel provided in the container and driven from outside the shielded container to wind the instrumentation cable, a guide rod that opens and closes the winding groove of the take-up reel, and a guide rod that is temporarily set in the winding groove of the take-up reel. A binding plate for binding the wound instrumentation cable tabs, a plate bending rod for pressing the binding plate from the outside and bending it so as to bind the wound instrumentation cable tab, and the instrumentation bound by the binding plate. A winding device for an instrumentation cable, characterized in that it is equipped with a removal rod for transferring the cable tangle onto a hanger rod in a temporary storage space in a shielded container.