JP2001289990A - Transporting device for radiation shielding body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transporting device with excellent controllability capable of safely and rapidly installing a surely radiation-shielding body at an accident site when an accident has occurred in a nuclear power-related facility. SOLUTION: This radiation shielding body transporting device 5 capable of running in the state of being loaded with a radiation shielding body 4 sealed with radiation shielding members comprises an operator's cabin 9 covered with radiation shielding members, a CCD camera 11, an illuminating lamp 10, a power source for self-propelling, and a means for installing the shielding body 4 by the remote control from the operator's cabin 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for safely installing a shielding member for shielding radiation in the event of an accident in a nuclear facility or the like at a desired point.

[0002]

2. Description of the Related Art Various disaster prevention measures have been taken in nuclear facilities and the like in order to minimize the influence on the surrounding area due to radiation leakage when a natural disaster such as an earthquake or a fire accident occurs.

[0003] The protection against radiation exposure has been a serious concern, and although safety measures have been sufficiently taken in nuclear power generation facilities and nuclear fuel processing facilities in the past, if accidents occur, they must be taken to the site in the event of an accident. Entry was a major social problem, such as entering the area to rescue victims without adequate defense and exposing them.

[0004] When a fire accident occurs, it is impossible to enter the accident site if there is no radiation leakage or if it is unknown whether the leakage has a level that may affect the human body.

[0005]

Therefore, it is very important to quickly and appropriately prevent the spread of radiation leakage, and there has been a demand for a transport device in which a shield for safely shielding radiation is installed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to safely and promptly install a shield capable of reliably shielding radiation in the event of an accident at a nuclear facility. An object of the present invention is to provide a transfer device which is excellent in operability.

[0007]

According to the present invention, there is provided a transport device capable of mounting and carrying a shielding body in which a radiation shielding agent is sealed, wherein the transport device includes a driver's cab covered with a radiation shielding member and a CCD camera. The above object can be achieved by providing a vehicle, a lighting source, a power source for self-propelling, and means for installing the shield by remote control from a cab.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing the concept of an accident situation in a nuclear-related facility premises where a disaster has occurred. In FIG. 1, 1 is a facility premises where a disaster has occurred, 2 is an accident site, 3
Denotes a material storage, 4 denotes a radiation shield transporter, 6 denotes a premises passage, and 7 denotes a traveling locus of the transporter 5.

The radiation shield conveying device 5 is provided with a power source such as an engine so that the operator can drive and run, and the cab 9 is covered with a radiation shielding plate. The material storage 3 in which the radiation shield conveying device 5 is stored is located at a position sufficiently distant from a building that handles nuclear materials, and is installed in a safe position even if an accident occurs in the building.

FIG. 2 shows details of the radiation shield conveying device 5. The transport device 5 includes a configuration that travels on an endless track 8,
An operator cab 9 surrounded by a radiation shielding plate is provided at the upper part. A forklift unit 12 for mounting the radiation shield 4 is provided in front of the radiation shield transport device 5.
An engine is mounted to drive the forklift section 12, the endless track 8, and the like.

The CCD camera 1 is mounted on the outer surface of the radiation shield conveying device 5 so that the driver can operate in the cab 9.
1 and an illumination lamp 10 are provided. In the driver's cab 9, the situation outside the driver's cab illuminated by the illumination lamp 10 is imaged by the CCD camera 11 and projected on a screen of a video monitor in the driver's cab 9,
While the driver in the cab 9 looks at the screen, driving and handling of the radiation shield 4 are performed.

In the cab 9, CCs are controlled by various control devices.
The D camera 11 can also be moved up, down, left and right as indicated by the arrows in FIG. The radiation shield 4 is mounted on the pedestal 13,
The pedestal 13 is lifted by a fork of the forklift 12 and transported to a desired place together.

When an accident occurs in the building shown in FIG. 1, the radiation shield conveying device 5 is pulled out from the material storage 3, and the radiation shielding member 4 is filled with a shielding agent, for example, boric acid water, and the radiation shielding member is transported. The device 5 is lifted by the forklift 12 and transported to the accident site 2 through the premises passage 6 to
The radiation shield 4 is lowered from the forklift 12 around the surroundings to form a wall formed by the radiation shield 4. These series of operations are performed by a driving operation in the cab 9 by a driver in the cab 9. A driving operation means for the driving operation is provided in the cab 9.

At this time, since there is a possibility that radiation may leak from the accident site 2, the driver of the radiation shield conveying device 5 enters the operator's cab 9 surrounded by the radiation shield, and the radiation shield is not exposed to radiation. The transfer device 5 is operated. The path of the radiation shield conveying device 5 proceeds while checking with the CCD camera 11, and when approaching the accident site 2, the forklift 1
2, the shields 4 are arranged so as to surround the accident site 2 as shown in FIG.

When the radiation shield 4 forms a wall surrounding the accident site 2, the worker can approach the wall to perform the accident processing.

The radiation shield 4 is provided with, for example, water and water inside a rectangular parallelepiped made of a composite of chloroprene rubber and urethane rubber.
A liquid in which a liquid having a large radiation shielding effect such as boric acid water and paraffin is sealed is used.

The material storage 3 is centrally managed at a specific place without being provided at each nuclear-related facility, and when an accident occurs, the radiation shield transport device 5 and the radiation shield 4 are loaded on a trailer to cause an accident. You may carry it to a facility.

[0018]

According to the present invention, when an accident occurs in a nuclear-related facility, the radiation shield can be safely and quickly installed near the accident site.

[Brief description of the drawings]

FIG. 1 is a plan view of a facility premises showing a concept of an accident situation in a nuclear-related facility premises where a disaster has occurred.

FIG. 2 is a detailed perspective view of the radiation shield conveying device 5;

[Explanation of symbols]

1 Nuclear facilities, 2 accident sites, 3 material storage,
Reference numeral 4: radiation shield, 5: radiation shield transporter, 6: internal passageway, 8: endless track, 9: driver's cab, 10: lighting lamp, 1
1 ... CCD camera, 12 ... Forklift.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Akira Mizuochi 3-2-2, Sachimachi, Hitachi-shi, Ibaraki F-term in Hitachi Engineering Services Co., Ltd. (Reference) 3F333 AA02 AB13 CA13 CA19 CA28 FE05 FE08

Claims (2)

[Claims] 1. A transport device capable of mounting and carrying a shield enclosing a radiation shielding agent, the transport device comprising: a driver's cab covered by a radiation shielding member; a CCD camera; A radiation shield conveying apparatus comprising: a power source for self-propelling; and means for installing the shield by remote control from a cab. 2. The radiation shield conveying apparatus according to claim 1, wherein the shield has a rectangular parallelepiped shape, and one of water, boric acid, and paraffin is sealed therein.