JPS6049296A - Inspection device in nuclear reactor container - 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 a technology for monitoring the operating status of a nuclear reactor, and particularly to an inspection device within a reactor containment vessel.

<Conventional technology> Conventionally, there has been a device of this type as shown in FIG.

In the figure, 1 is a track for patrol inspection provided in the reactor containment vessel (not shown), 2 is a vehicle transport device attached to this track 1, 3 is an inspection vehicle, 4 is an imaging system (lighting device), 5
6 is an imaging device, and 6 is a vehicle loaded with an imaging device and a lighting device.

FIG. 2 is an explanatory diagram showing light reflection by an illumination lamp. In the figure, numeral 9 indicates an object to be imaged, and the broken line indicates a light beam from an illumination lamp.

However, the imaging device 5 and the imaging lighting device 4
Although the direction, brightness, etc. can be adjusted by remote control, the relative positions of the six units 5 and 4 were fixed because they were installed on the vehicle 6, which is surrounded by structures.

For this reason, the material and shape of the imaged object 9 and the imaged object 9
Depending on the positional relationship between the image capturing device 5 and the image capturing device 5, the light from the lighting device 4 hits the imaged object 9 and is reflected as shown in FIG. Therefore, the reflected light enters the imaging device 5, and there is a drawback that inspection by imaging cannot be performed satisfactorily.

<Summary of the Invention> This invention was made to eliminate the drawbacks of the conventional ones as described above.The present invention was made in order to eliminate the drawbacks of the conventional ones as described above. An object of the present invention is to provide an inspection device for inside a nuclear reactor containment vessel, which is configured so that the light angle can be freely changed.

<Embodiment of the Invention> An embodiment of the invention will be described below with reference to FIGS. 3 and 4. In addition, in these figures, Figures 1 and 2
Components K that are the same as those in the figures are given the same reference numerals to simplify the explanation.

That is, in FIG. 3, I is a vehicle loaded with a lighting device 4, 8 is a vehicle loaded with an imaging device 5, and these vehicles 7 and 8 are individually positioned along the track 1. It is moved so that it changes. FIG. 4 shows light reflection by the illumination lamp of the embodiment shown in FIG.

As mentioned above, the lighting device ■R vehicle T and other vehicles 3.8
Depending on the structure in which the image capturing object 9 can be moved individually, the material and shape of the imaged object 9, and the positional relationship between the imaged object 9 and the image capturing device 5, the illumination light device U (g) can be moved from the image capturing device 5 by moving only the vehicle T. As shown in Figure 4, by changing the viewing angle of illumination, it is possible to prevent the reflected light from the illumination light from affecting the imaging function. , the direction of the imaging device 5, etc. are controlled by remote control.

Furthermore, although the above embodiments show the case of air travel, the same applies to ground travel.

<Effects of the Invention> As described above, according to the present invention, the vehicle loaded with the lighting device and the vehicle loaded with the imaging device are configured to be movable so that their relative positions can be changed individually, so that the objects to be imaged, the lighting device, and the imaging device can be moved. It is possible to eliminate the inconvenience that the imaging function is obstructed due to the positional relationship with the nuclear reactor containment vessel, and there is an effect that inspections inside the reactor containment vessel can be carried out thoroughly.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional inspection device inside the reactor containment vessel, FIG. 2 is a schematic diagram showing the state of light reflection in the imaging illumination device of the same device, and FIG. 3 is an embodiment of the present invention. FIG. 4, a perspective view of the apparatus, is a schematic diagram showing a state of light reflection in the imaging illumination lamp device of the same apparatus. 1...Track 2...-Vehicle transport device 4...Photography □□
□Lighting equipment @ 5...Imaging device T...Vehicle loaded with lighting device 8...Vehicle loaded with J's most advanced device 9...Image object f1 Agent Masuo Oiwa (2 others) Figure 1. Figure 2 1゜Figure 4 575

Claims (1)

[Claims] Two vehicles are provided that move along a patrol inspection track provided inside the reactor containment vessel so that their relative positions change individually, and each of the two vehicles is loaded with an imaging device and an imaging lighting device. An inspection device inside a nuclear reactor containment vessel, which is characterized by: