JP5629096B2 - Radiation control area glove box - Google Patents

Description

  The present invention relates to a glove box for a radiation management area, and more particularly to a glove box used when reinforcing a building designated for a radiation management area.

  In a building having a radiation control area such as a nuclear facility, it is necessary to take measures to prevent radiation from leaking from the radiation control area to the outside world when performing seismic reinforcement work. In general, it is necessary to obtain permission to designate a temporary management area and to construct a large temporary design image. For example, in a temporary management area, it has been common to construct a hut-like structure using vinyl acetate sheets, concrete panels, lightweight steel plates, single pipes, etc. to prevent radiation leakage.

  However, when there were few penetration points between the radiation control area and the outside world, when a large temporary design image was created, the construction period was prolonged and the construction cost was likely to increase. In this regard, in nuclear facilities, it is assumed that strict management is performed based on the radiation management regulations, and that various operations are performed so that radiation does not leak from the radiation control area to the outside world. If it can be performed, the construction period can be shortened and the construction cost can be reduced.

  By the way, a glove box is known as a means for performing simple work while reliably preventing radiation leakage (see, for example, Patent Document 1 and Patent Document 2). Such a glove box is widely used when handling a relatively small amount of radioactive material, and an operator comes to work in the box through a rubber glove attached to the glove port. Yes.

JP-A-8-50197 JP-A-7-237175

  However, glove boxes used in buildings with radiation control areas are not ready-made products with uniform specifications, but are ordered items that vary in volume, glove position, etc. depending on the work content. When changes occurred, everything had to be remanufactured. Further, since the entire surface is a clear panel, the weight is increased, and there are cases where it cannot be used in a construction in which a heavy object cannot be placed, such as a roof constructed by ALC (Autoclaved Lightweight Concrete) or the like.

  The present invention has been proposed in view of the above-mentioned circumstances, and on the premise that radiation leakage is reliably prevented, the opening position can be easily changed, and the radiation management area in which the manufacturing cost can be reduced. The purpose is to provide a glove box. Furthermore, an object of this invention is to provide the glove box for radiation management areas which can achieve weight reduction.

The glove box for a radiation management area of the present invention has the following features in order to achieve the above-described object. That is, the glove box for a radiation management area of the present invention includes a frame member, a plate member that can be attached to and detached from the frame member, and a work glove that closes a glove mounting opening provided in the plate member. Then, the plate member is appropriately changed in position according to the work content to form a glove attachment opening at a position where the worker's hand can reach the work target. A member having translucency is used, a wooden panel is used for the other part , and a plate member attached to the frame member is replaced and used according to the situation of the work site.

  The radiation control area glove box having such a structure is used when, for example, performing seismic reinforcement work on the roof of a building having the radiation control area, and is a reinforcing member that must be attached through the structure. On the other hand, a glove box is assembled using a plate member in which a glove mounting opening is formed so that an operator's hand can reach. In addition, when the shape and position of the reinforcing member is different at other construction locations, a glove box is formed using a plate member in which an opening for attaching the glove is formed so that the operator can reach the reinforcing member. Reassemble.

As described above, as the plate member, a member having translucency is used at a place where visual observation is necessary, and a wooden panel is used as the other part .

  The glove box for the radiation control area having such a configuration uses, for example, a light-transmitting vinyl acetate sheet or an acrylic panel in a portion where it is necessary to visually check the work target, and a glove mounting opening or the like. Lightweight concrete panels (concrete plywood for formwork) are used for the portions where the openings must be formed. At this time, a window portion may be provided at an appropriate location of the concrete panel, and a translucent vinyl acetate sheet, an acrylic panel, or the like may be attached to the window portion.

  In the glove box for radiation control area of the present invention, a glove box is created by attaching a plate member having a glove attachment opening formed in accordance with the work content to a frame member. Therefore, it is not necessary to produce a dedicated glove box corresponding to the work content, and a plate member in which the position of the glove attachment opening is changed according to the work content is created, and only this plate member needs to be replaced. Therefore, it becomes possible to reduce the manufacturing cost. In addition, since the position of the opening for attaching the glove can be changed flexibly according to the work content, quick construction is possible and the construction period can be shortened.

  Furthermore, as a plate member that constitutes the glove box, when a member having translucency is used for the part that requires visual observation and a wooden panel is used for the other part, compared with the case where the entire surface is constituted by an acrylic panel Thus, the total weight can be reduced by using lightweight wooden panels. For this reason, it is possible to use the glove box even in a place where heavy objects cannot be placed. In addition, wooden panels can be processed without the need for special cutting tools, which enables on-site processing, which not only reduces manufacturing costs, but also shortens the construction period. .

The schematic diagram which shows the usage example of the glove box which concerns on embodiment of this invention. The perspective view of the frame member which concerns on 1st Embodiment. The elements on larger scale of the frame member which concerns on 1st Embodiment. The perspective view of the frame member which concerns on 2nd Embodiment. The top view of a plate member (upper surface). The top view of a plate member (bottom surface). The top view of a plate member (front-and-rear surface). The top view of a board member (left-right side). Explanatory drawing which shows replacement | exchange of a plate member.

  Hereinafter, an embodiment of a glove box for radiation management area (hereinafter referred to as a glove box) of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing an example of use of a glove box according to an embodiment of the present invention. 2 is a perspective view of the frame member according to the first embodiment of the present invention, FIG. 3 is a partially enlarged view of the frame member shown in FIG. 2, and FIG. 4 is a frame member according to the second embodiment of the present invention. FIG.

<Overview>
The glove box 10 of the present invention is a building having a radiation control area, for example, as shown in FIG. 1, and has a roof constructed of a material on which a heavy object such as ALC cannot be placed. It can be used when a building is subjected to seismic reinforcement work through the roof material 140. In this embodiment, the glove box 10 used for such a seismic reinforcement work will be described. However, the present invention is not limited to this, and the work is performed through a radiation control area in a nuclear facility or the like. Can be applied in case.

<Specific configuration>
The glove box 10 according to the embodiment of the present invention, as a basic configuration, closes a frame member 30, a plate member 40 that can be attached to and detached from the frame member 30, and a glove mounting opening 50 provided in the plate member 40. A working glove 60.

<Frame member / first embodiment>
The frame member 30 is a member for attaching the plate member 40. In the first embodiment, as shown in FIG. 2, the frame member 30 includes a basic frame 31 that forms a side of a rectangular parallelepiped. As shown in FIG. 3, screw insertion holes 33 are provided at appropriate positions of the basic frame 31. The frame member 30 is preferably made of stainless steel in that it is easy to process, has a strength that does not easily deform or break, and can prevent corrosion. As long as the necessary conditions for the frame member 30 can be ensured, such as strength and durability, it may be made of other members such as wood or vinyl chloride.

<Frame member / second embodiment>
As shown in FIG. 4, the frame member 30 according to the second embodiment has a circular or square window frame 32 formed continuously from the basic frame 31. Specifically, the basic frame 31 and the window frame 32 are integrated by attaching a circular or square window frame 32 to the basic frame 31 by welding, for example. The window frame 32 is provided at the position of the window portion 20 described in detail later. Although not shown, the window frame 32 also has a screw insertion hole.

<Plate member>
5 to 8 show plate members, FIG. 5 is a plan view of the plate member on the top surface, FIG. 6 is a plan view of the plate member on the bottom surface, FIG. 7 is a plan view of the plate member on the front and back surfaces, and FIG. It is a top view of the plate member of a right-and-left side.

  The plate member 40 is a member that is used by being attached to the frame member 30, and as shown in FIGS. 5 to 8, a glove attachment opening 50 is formed at a position where the operator's hand can reach the work target, as shown in FIGS. Has been. A window opening 80 is also formed at a position where the window 20 is to be formed. In addition, when the frame member 30 of the second embodiment is used, it is not necessary to form openings at all positions of the window frame 32 provided in the frame member 30 according to the work contents. Only an opening need be formed.

  In the present embodiment, the top plate member 40 is provided with a glove mounting opening 50, a window portion opening 80, and a filter opening 100, and the bottom plate member 40 is provided with a working opening 90. The member 40 is provided with a window opening 80 and a filter opening 100, and the left and right side plate members 40 are provided with glove attachment openings 50. Further, although not shown, a tool loading opening may be provided separately from these openings.

  The plate member 40 basically uses a wooden concrete panel (concrete plywood for formwork). Moreover, the member which has translucency is used for the window part 20 which needs internal visual observation. As the light-transmitting member, for example, a vinyl acetate sheet, an acrylic panel, or the like can be used. When the frame member 30 according to the second embodiment is used, an acrylic panel may be attached to the window frame 32 in advance, and the plate member 40 may be attached to the inside thereof. In this case, it is not necessary to provide the window openings 80 at the positions of all the windows 20, and the window openings 80 can be provided only at the locations required for work.

  Cutting and drilling the acrylic panel requires special cutting tools. In this embodiment, the positions of the openings such as the glove mounting opening 50, the window opening 80, and the work opening 90 are changed in the field. Can be used where it would not be necessary. On the other hand, the wooden concrete panel can be cut or drilled with a general electric saw or the like, and can be processed in the field, so there is a possibility of changing the mounting position of the working glove 60 and the like. Used in places. Furthermore, wooden concrete panels are lighter in weight than acrylic panels, so the material of glove box 10 used for construction such as roofs constructed of materials that cannot place heavy objects such as ALC. It is suitable as.

  The plate member 40 is screwed to the frame member 30. That is, as shown in FIG. 3, the screw 70 is inserted through the screw insertion hole 33 provided in the frame member 30 (the basic frame 31 or the like), and the distal end portion of the screw 70 is screwed into the plate member 40, thereby On the other hand, the plate member 40 is fixed. Further, the gap between the frame member 30 and the plate member 40 is sealed between the frame member 30 and the plate member 40 or by filling the screw insertion hole 33 with a caulking material. Similarly, a light-transmitting plate member 40 such as a vinyl acetate sheet or an acrylic panel is attached to the window opening 80 and sealed with a caulking material.

  A work glove 60 is attached to the glove attachment opening 50 using an adhesive or the like. In order to completely seal the gap between the plate member 40 and the work glove 60, a packing material may be interposed between the plate member 40 and the work glove 60. Similarly, a filter member 110 is attached to the filter opening 100 (see FIG. 1). Furthermore, when a tool loading opening (not shown) is provided, a cylindrical cylindrical member made of a long vinyl chloride sheet or the like is attached to the tool loading opening. The cylindrical member is secured by sealing the open end portion and binding it with a binding member such as a string.

<Working gloves>
The material, shape, size, and the like of the work glove 60 used in the present embodiment can be changed as appropriate according to the work target, and are not particularly limited. For example, flexible neoprene rubber or chloro Polymer latex blends such as sulfonated polyethylene rubber, translucent polyvinyl acetate, and the like can be used. In FIG. 1 and FIG. 9, a bag-like glove is illustrated to simply show the work glove 60, but the actually used glove may be a five-finger type or a mittens type.

<Use example of glove box>
Next, the usage example of the glove box 10 of this embodiment is demonstrated. In addition, although the following description shows the case where the earthquake-proof reinforcement work is performed through the roof material 140 of the building having the radiation control area, the glove box 10 of the present embodiment is not limited to such a work. It can also be applied to other constructions performed in the radiation control area.

  As shown in FIGS. 5 to 8, the plate member 40 of the glove box 10 of the present embodiment is provided with a working opening 90 on the bottom surface, and with a glove mounting opening 50 on the left and right side surfaces and the top surface. Further, window openings 80 are provided on the upper surface and the front and rear side surfaces.

  As shown in FIG. 1, the glove box 10 is for performing earthquake-proof reinforcement work by penetrating a roof material 140 of a building. The opening forming work, the attaching work of the reinforcing member (gusset) 120, the closing work, etc. are performed.

  Although a specific procedure is not illustrated, first, a caulking material is filled in a contact portion between the bottom surface of the glove box 10 and the roof material 140, and taping is performed to ensure airtightness and work is started. In addition, a receiving stage 130 for preventing fall is attached to the lower surface of the roof material 140 to collect cutting waste and the like. Substances that may be contaminated with radiation, such as collected chips, are subjected to disposal processing after being subjected to contamination prevention processing in the radiation control area.

  In the opening forming work, a hole saw is used to make a hole in the substantially central portion of the opening forming portion, a jigsaw is carried into the glove box 10, and a rectangular opening is formed by performing four-sided chamfer cutting. Form. Thereafter, the reinforcing member (gusset) 120 is attached to the roof member using the opening. And while attaching the plate member (not shown) which obstruct | occludes opening, the caulking material is filled into the clearance gap etc. of a plate member and the roofing material 140, and it covers with a taping, and sealability is ensured. When it is confirmed that the sealing property is secured, the glove box 10 is removed and the work using the glove box 10 is finished.

<Replacement of plate member>
In this embodiment, the plate member 40 in which the position of the glove attachment opening 50 is different according to the situation at the work site is created and attached to the frame member 30 for use. FIG. 9 is an explanatory diagram for explaining replacement of the plate member.

  As shown in FIG. 9, when the positions of the reinforcing members (gussets) 120 attached to the roofing material 140 are different, the plate members having different positions of the glove attachment openings 50 corresponding to the attachment positions of the reinforcing members (gussets) 120. 40 may be created and replaced for use. In the example shown in FIG. 9, a glove mounting opening 50 is provided on the top plate and the right side plate so that the work is performed in the substantially central portion of the glove box 10, but the work location is shifted to the left side in FIG. In this case, by replacing with the plate member 40 provided with the opening 50 for attaching the glove on the left side of the top plate and the left side of the front plate, the work location can be easily reached and appropriate and quick work can be performed. be able to. Further, for example, on the right side, the plate member 40 provided with the opening 50 for attaching the globe may be removed and replaced with a plate member 40 (concrete panel or acrylic panel) having no opening.

  The replacement of the plate member 40 is performed by removing the sealing applied between the frame member 30 and the plate member 40 and removing the screws 70 screwed into the plate member 40 through the screw insertion holes 33. Is removed from the frame member 30. Then, the new plate member 40 is attached to the frame member 30, and the tip of the screw 70 is screwed into the plate member 40 through the screw insertion hole 33 to perform sealing.

<Other embodiments>
The glove box 10 of the present invention is not limited to the above-described embodiment, and the size and shape of the frame member 30 and the positions, shapes, sizes, and the like of various openings are the situation of the location to be constructed, etc. Depending on the situation, it can be changed as appropriate. In addition, not all surfaces of the glove box 10 are formed of wooden concrete panels, but, for example, an upper surface or only one side surface that requires visual inspection inside is formed of an acrylic panel, and the other surface is formed of a wooden concrete panel. The use location of the wooden member or the acrylic member can be appropriately changed according to the usage object of the glove box 10. Further, a stainless member integrated with the frame member 30 may be used in a place where it is not necessary to visually observe the inside and where the position of the opening does not need to be changed.

DESCRIPTION OF SYMBOLS 10 Glove box 20 Window part 30 Frame member 31 Basic frame 32 Window frame 33 Screw insertion hole 40 Plate member 50 Globe mounting opening 60 Working glove 70 Screw 80 Window opening 90 Working opening 100 Filter opening 110 Filter member 120 Reinforcing member 130 Receiving stage 140 Roofing material

Claims (1)

A glove box for a radiation control area,
A frame member, a plate member that can be attached to and detached from the frame member, and a work glove that closes a glove attachment opening provided in the plate member,
In the plate member, the position is changed as appropriate according to the work content, and an opening for attaching a glove is formed at a position where the worker can reach the work target. Use members with light, other parts use wooden panels,
A glove box for a radiation control area, wherein the plate member attached to the frame member is replaced and used according to the situation of the work site.

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