JP6586003B2 - Storage facility - Google Patents

Description

  The present invention relates to a storage facility for storing storage items such as casks (containers for radioactive materials such as spent nuclear fuel).

  In many cases, spent nuclear fuel generated at a nuclear power plant is transferred to a storage facility after being stored in a cask which is a container made of steel, concrete, or the like, and stored in the facility. In general, a cask transported to a storage facility is transported to a predetermined storage location in the storage facility by a transport device capable of transporting the cask and stored in the location.

  Here, as a transfer device, there is a suspension type transfer device that has a suspension member that can suspend a stored item such as a cask, and can transfer the stored item in a state of being suspended by a suspension member. ing. In the suspension type transport device, the work space and storage space on the floor surface in the storage facility can be effectively utilized. On the other hand, in such a suspension type transport device, it is necessary to install a track for moving the transport device in the space between the ceiling and the floor surface of the storage facility, so the ceiling is supported. There are restrictions on the installation of pillars and walls. For this reason, since it is calculated | required to ensure the intensity | strength of a ceiling with the ceiling itself, the complexity of a ceiling structure and an increase in weight are accompanied.

  Patent Document 1 discloses a storage facility that can avoid the complexity and weight increase of the ceiling structure. Specifically, Patent Document 1 includes a groove extending along the longitudinal direction of the building, a traverser movable on the groove, a plurality of rails each extending along a direction orthogonal to the groove, A storage facility comprising a transport device capable of traveling on a rail is disclosed. Grooves and rails are provided on the floor of the building. The traverser moves the transfer device and the cask along the groove. The conveying device travels on the rail with the cask supported from below. In this storage facility, the grooves and rails are provided on the floor surface, and the transfer device moves along the grooves and rails while supporting the cask, that is, in the space between the ceiling and the floor surface. Since it is not necessary to provide a track for moving the transfer device, restrictions on installation of columns and walls for supporting the ceiling are eased.

JP 2006-322894 A

  In the storage facility described in Patent Document 1, since the tracks (grooves and rails) are provided on the floor surface of the building, the storage space for the cask is limited. Such a problem is not limited to the case where the stored item is a cask, but can also occur when other stored items are stored in a storage facility.

  An object of the present invention is to provide a storage facility capable of both reducing the weight of a ceiling and securing a storage space for stored items.

  In order to solve the above-mentioned problem, it is conceivable to provide a traverser capable of moving the suspended conveying device. However, in that case, the suspended member or the stored item suspended by the hanging member of the transport device interferes with the traverser moving trajectory.

  Accordingly, the present invention is a storage facility for storing stored items, and has a shape extending along a specific direction, and a pair of traveling tracks arranged parallel to each other at a position higher than the floor surface. And a suspension member capable of suspending the stored item, a transport device capable of traveling along the pair of traveling tracks, and a shape extending along a crossing direction intersecting the specific direction. A pair of moving tracks arranged parallel to each other, and a traverser capable of moving the transport device along the pair of moving tracks, the pair of traveling tracks, The suspension members are disposed at positions separated from each other in the cross direction so as to allow movement between the pair of traveling tracks, and the pair of movement tracks are relative to each other in the specific direction. A first moving track disposed near the pair of traveling tracks, and a second moving track disposed relatively far from the pair of traveling tracks in the specific direction, The first movement track is disposed at a position spaced vertically from the suspension member and the storage material suspended by the suspension member, and the traverser extends on an extension line of the pair of traveling tracks. The pair of support portions and the pair of support portions so that the pair of support portions can move along the pair of movement tracks. A connecting portion for connecting the moving track, and the pair of support portions are provided between the pair of traveling tracks and between the pair of support portions along the specific direction. To allow each other to move before each other It is disposed at a position spaced in the cross direction, to provide a storage facility.

  In this storage facility, since the pair of traveling tracks are arranged at a position higher than the floor surface, the storage space for the stored items is effectively ensured, and the transport device has a pair of traveling tracks along a specific direction. It becomes possible to move between the pair of support portions. Specifically, the first moving track is disposed at a position spaced vertically from the suspension member and the stored item, and the pair of traveling tracks and the pair of support portions are both separated in the intersecting direction. Therefore, interference between the suspension member and the stored item, the first moving track, and the traverser during traveling along the specific direction of the transport device is avoided. Furthermore, since it is possible to install columns and walls outside the pair of traveling tracks, the weight of the ceiling can be reduced.

  In this case, the first moving track is disposed above the pair of traveling tracks, and the connecting portion has a shape extending upward from the pair of support portions, and There may be provided a first connection part for connecting the support part and the first moving track.

  In this aspect, the work space on the floor surface of the storage facility is effectively secured.

  Alternatively, the first movement track is disposed on a floor surface below the pair of traveling tracks, and the connection portion has a shape extending downward from the pair of support portions, and You may have a 1st connection part which connects a pair of support part and the said 1st track | orbit for a movement.

  In this aspect, the installation work of the first moving track is simplified.

  In the present invention, the vehicle may further include another pair of traveling tracks disposed on the opposite side of the pair of traveling tracks with respect to the specific direction with respect to the pair of traveling tracks. The track is disposed at a position spaced apart from each other in the intersecting direction so as to allow movement of the suspension member between the other pair of travel tracks, and the second movement track is the suspension member. And the pair of support portions are arranged so that the suspension member is for the other pair of traveling along the specific direction. It is preferable that they are arranged at positions separated from each other in the intersecting direction so as to allow movement between the tracks and between the pair of support portions.

  If it does in this way, a store thing can be kept in both fields on both sides of a pair of orbits for movement about a specific direction.

  In the present invention, the traverser further includes a transport device positioned on the pair of support portions and a connecting portion that connects the pair of support portions while avoiding a storage suspended from the transport device. It is preferable.

  In this way, the dimension between the pair of support portions is stably maintained.

  As described above, according to the present invention, it is possible to provide a storage facility capable of both reducing the weight of the ceiling and securing the storage space for stored items.

It is a top view which shows the outline of the storage facility of 1st Embodiment of this invention. It is a perspective view which shows the periphery of a traveling apparatus and a traverser. It is a side view of the storage facility shown in FIG. It is a front view when a traveling device is located on a pair of track for a run. It is a side view of the storage facility of 2nd Embodiment of this invention. It is a side view of the storage facility of 3rd Embodiment of this invention. It is a side view of the traveling apparatus and traverser shown in FIG.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
The storage facility according to the first embodiment of the present invention will be described with reference to FIGS.

  The storage facility is a facility for storing the stored item C. Hereinafter, as a stored material C, a cask C that contains radioactive materials such as spent nuclear fuel will be described as an example. The main storage facility (cask storage facility) includes a building 10, a pair of traveling tracks 20, a transfer device 30, a pair of moving tracks 40, and a traverser 50. In the present embodiment, a cask C having a cylindrical body is stored.

  The building 10 has a plurality of partition walls 12 that partition a space in the building into a plurality of regions. In the present embodiment, each partition wall 12 has a shape extending along the short direction perpendicular to the longitudinal direction of the building. A storage area for the cask C is formed between the partition walls 12 adjacent to each other.

  As shown in FIG. 1, the pair of traveling tracks 20 has a shape extending along the short direction of the building 10. Each traveling track 20 is arranged to be parallel to each other at a position higher than the floor surface 11 of the building 10. Further, the traveling tracks 20 are arranged so as to be separated from each other in an orthogonal direction orthogonal to the longitudinal direction of the traveling track 20 (hereinafter also referred to as “traveling direction”). As shown in FIGS. 3 and 4, the pair of traveling tracks 20 is disposed at a position higher than the cask C placed on the floor surface 11 of the building 10.

  The storage facility of the present embodiment has three pairs of traveling tracks 20. As shown in FIG. 1, each pair of traveling tracks 20 is disposed in each of three regions among a plurality of regions partitioned by a plurality of partition walls 12. However, the number of the pair of traveling tracks 20 is not limited to this.

  The transport device 30 is a device that can travel along the pair of travel tracks 20 while holding the cask C. In the present embodiment, the conveyance device 30 is located along the pair of traveling tracks 20 in a state where the cask C is held (suspended) between the pair of traveling tracks 20 and below the pair of traveling tracks 20. It is a device that can run. The transport device 30 includes a main traveling body 31 and a sub traveling body 34.

  The main traveling body 31 has a main traveling body main body 32 and main wheels 33.

  On the upper surface of the main traveling body 32, a pair of secondary traveling tracks 32a (see FIGS. 2 and 4) having a shape extending along the orthogonal direction (direction orthogonal to the traveling direction) is provided.

  The main wheel 33 is connected to the lower surface of the main traveling body 32. The main wheel 33 can travel on the pair of traveling tracks 20.

  The auxiliary traveling body 34 is supported by the main traveling body main body 32. The auxiliary traveling body 34 includes an auxiliary traveling body main body 35, auxiliary wheels 36, and an elevator 37.

  The auxiliary wheels 36 are connected to the auxiliary traveling body main body 35 and can travel along the pair of auxiliary traveling tracks 32a. That is, the auxiliary traveling body main body 35 can be moved relative to the main traveling body main body 32 via the auxiliary wheels 36 in the orthogonal direction.

  The elevator 37 is supported by the auxiliary traveling body main body 35. As shown in FIGS. 2 and 3, the elevator 37 has a suspension member 38 that can suspend the cask C between the pair of traveling tracks 20 and below the pair of traveling tracks 20. ing.

  The pair of moving tracks 40 has a shape extending along the orthogonal direction. The pair of moving tracks 40 are arranged so as to be parallel to each other. The pair of movement tracks 40 are arranged so as to be separated from each other in a direction perpendicular to the longitudinal direction of the movement track 40 (hereinafter also referred to as “movement direction”). The pair of moving tracks 40 are disposed relatively far from the pair of traveling tracks 20 in the traveling direction, and the first moving track 42 disposed relatively near the pair of traveling tracks 20 in the traveling direction. Second trajectory 44 for movement.

  The first movement track 42 and the second movement track 44 are arranged at positions that form a space that allows the suspension member 38 to move along the movement direction therebetween. The first moving track 42 is disposed at a position spaced vertically from the suspension member 38 and the cask C suspended by the suspension member 38. In the present embodiment, as shown in FIGS. 2 and 3, the first moving track 42 is disposed above the pair of traveling tracks 20. The second moving track 44 is disposed below the pair of traveling tracks 20.

  The traverser 50 is a device that can move the transport device 30 along a pair of moving tracks 40. Specifically, the traverser 50 includes a pair of support portions 51 that support the transport device 30, and connection portions 52 and 55 that connect the pair of support portions 51 and the pair of movement tracks 40.

  The pair of support portions 51 can be positioned on an extension line of the pair of traveling tracks 20 and can support the transport device 30. The pair of support parts 51 are separated from each other in the movement direction so as to allow the suspension member 38 to move between the pair of running tracks 20 and between the pair of support parts 51 along the running direction. Placed in position. Specifically, the pair of support portions 51 are arranged at positions separated from each other in the movement direction by the same dimension as the dimension between the pair of traveling tracks 20. However, the dimension between the pair of support portions 51 is not limited to the same dimension between the pair of traveling tracks 20. The pair of support portions 51 include rails having a shape that allows movement of the main wheel 33 of the transport device 30 along the traveling direction.

  The connection portions 52 and 55 connect the pair of support portions 51 and the pair of movement tracks 40 so that the pair of support portions 51 can move along the pair of movement tracks 40. Specifically, the connection portion includes a first connection portion 52 that connects the pair of support portions 51 and the first movement track 42, and a second connection that connects the pair of support portions 51 and the second movement track 44. Part 55.

  The first connection portion 52 is connected to the pair of first connection portion main bodies 53 having a shape extending upward from the pair of support portions 51 and the first connection portion main bodies 53. Wheels 54 that are movable along. Each first connection portion main body 53 is connected to an end portion of the pair of support portions 51 on the side close to the pair of traveling tracks 20 in the traveling direction.

  The second connection part 55 is connected to the pair of second connection part main bodies 56 connected to the pair of support parts 51, and is connected to each second connection part main body 56 and is movable along the second movement track 44. Wheels 57. Each second connection portion main body 56 is connected to an end portion of the pair of support portions 51 that is far from the pair of traveling tracks 20 in the traveling direction.

  As shown in FIG. 2, the traverser 50 further includes a connecting portion 59. The connecting portion 59 connects the upper end portions of the first connecting portion main bodies 53 to each other. That is, the connecting portion 59 connects the pair of support portions 51 to each other via the first connection portion main bodies 53.

  Next, a process of transporting the cask C to the predetermined storage location of the storage facility described above will be described.

  First, the cask C is carried into the storage facility by the vehicle 1 such as a trailer. At this time, the cask C is carried in such a posture that the central axis of the trunk portion is horizontal.

  Then, after the cask C is placed on the stand 2 so that the central axis of the trunk portion is vertical, the cask C is conveyed onto the inspection stand 3 and inspected there.

  Thereafter, the cask C is transported to a predetermined storage location. Specifically, first, the cask C is suspended by the suspension member 38 of the transport device 30 positioned on the pair of support portions 51 of the traverser 50 positioned above the inspection rack 3. In the present embodiment, since a space in which the hanging member 38 can be positioned is formed between the pair of support portions 51, the conveying device 30 on the pair of support portions 51 is lower than the pair of support portions 51. It is possible to suspend the cask C. For this reason, since the position of the gravity center of the conveyance apparatus 30 and the cask C becomes low, the cask C is stably conveyed.

  In this state, the traverser 50 moves along with the transport device 30 and the cask C along the pair of moving tracks 40 to a position overlapping the storage area where the storage location of the cask C exists and the traveling direction. After this movement, the pair of support portions 51 are positioned on the extension line of the pair of traveling tracks 20.

  Thereafter, the conveyance device 30 positioned on the pair of support portions 51 travels along the travel direction toward the pair of travel tracks 20 facing the pair of support portions 51. Here, the first moving track 42 is disposed at a position spaced upward from the conveying device 30 including the suspension member 38, and the pair of traveling tracks 20 and the pair of support portions 51 are both separated in the moving direction. Therefore, the suspension member 38 and the cask C are prevented from interfering with the first moving track 42 and the traverser 50. Therefore, the conveying device 30 can cross the pair of traveling tracks 20 from the pair of support portions 51 along the traveling direction.

  Then, after traveling to a position directly above a predetermined storage location, the transport device 30 places the cask C on the storage location by lowering the suspension member 38. At this time, the auxiliary traveling body 34 moves along the moving direction as necessary.

  After the cask C is placed, the transfer device 30 moves onto the traverser 50 and returns to the inspection rack 3 together with the traverser 50.

  By repeating the above steps, each cask C carried into the storage facility is stored in each storage location.

  In the present embodiment, since the pair of traveling tracks 20 are arranged above the floor surface 11, the work space and the storage space on the floor surface 11 are effectively ensured.

  Moreover, since the traverser 50 has the connection part 59 which connects a pair of support parts 51, the dimension between a pair of support parts 51 is stably hold | maintained.

(Second Embodiment)
Next, a storage facility according to a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, only parts different from the first embodiment will be described, and the description of the same structure, operation, and effect as in the first embodiment will be omitted.

  In the present embodiment, another pair of traveling tracks 25 is further provided, and the second moving track 44 is disposed above the pair of traveling tracks 20.

  Specifically, the other pair of traveling tracks 25 are arranged on the opposite side of the pair of traveling tracks 20 with respect to the pair of moving tracks 40 in the traveling direction. The other pair of traveling tracks 25 are arranged at positions separated from each other in the moving direction so as to allow the suspension member 38 to move between the other pair of traveling tracks 25.

  The second moving track 44 is disposed at the same height as the first moving track 42. However, the position of the second movement track 44 is not limited to the same height position as the first movement track 42.

  The pair of support portions 51 are moved in the movement direction so as to allow the suspension member 38 to move between the other pair of traveling tracks 25 and the pair of support portions 51 along the traveling direction. It is arranged at a separated position.

  In the present embodiment, the traverser 50 includes a reinforcing portion 58 that connects the upper end portion of the first connection portion main body 53 and the upper end portion of the second connection portion main body 56.

  In the storage facility of the present embodiment, the transport device 30 can also move along another pair of traveling tracks 25, so that the cask is placed in both areas sandwiching the pair of traveling tracks 40 in the traveling direction. It can be stored.

(Third embodiment)
Subsequently, a storage facility according to a third embodiment of the present invention will be described with reference to FIGS. 6 and 7. In the third embodiment, only parts different from the second embodiment will be described, and descriptions of the same structure, operation, and effect as those of the second embodiment will be omitted.

  In the present embodiment, both the first moving track 42 and the second moving track 44 are provided on the floor surface 11, and the connection portions 52 and 55 have a shape extending downward from the pair of support portions 51. Have.

  As shown in FIG. 7, the connecting portion 59 has a shape for connecting the pair of support portions 51 to each other while avoiding the transport device 30 located on the pair of support portions 51.

  In the present embodiment, since the first moving track 42 and the second moving track 44 are both provided on the floor surface 11, the installation work of these moving tracks 42 and 44 is simplified.

  In the third embodiment, the other pair of traveling tracks 25 may be omitted. In this case, the second moving track 44 may be disposed above the floor surface 11 and below the pair of support portions 51 as in the first embodiment.

  In addition, it should be thought that embodiment shown above is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, the auxiliary traveling body main body 35 and the auxiliary wheels 36 may be omitted. In this case, it is desirable that the distance between the pair of traveling tracks 20 is set to a distance that allows the plurality of casks C to be arranged in a row along the traveling direction.

  Moreover, the conveying apparatus 30 is not restricted to the form which conveys the said cask C in the state which suspended the cask C below the pair of track 20 for driving | running | working. For example, the transport device 30 may transport the cask C in a state where the cask C is held or suspended above the pair of traveling tracks 20.

DESCRIPTION OF SYMBOLS 10 Building 11 Floor 20 Pair of traveling track 25 Other pair of traveling track 30 Conveying device 38 Suspension member 40 Pair of moving track 42 First moving track 44 Second moving track 50 Traverser 51 A pair of supports Part 52 First connection part 55 Second connection part 59 Connection part C Storage (cask)

Claims (5)

A storage facility for storing storage items including casks ,
A pair of traveling tracks having a shape extending along a specific horizontal direction and arranged parallel to each other at a position higher than the floor surface;
While having a suspension member capable of suspending the stored item, a transport device capable of traveling on the pair of traveling tracks,
A pair of moving tracks arranged in parallel to each other and having a shape extending along a horizontal crossing direction intersecting the specific direction on one end side of the pair of traveling tracks in the specific direction;
A traverser capable of moving the conveying device along the pair of moving tracks,
The pair of traveling tracks are disposed at positions spaced apart from each other in the intersecting direction so as to allow movement of the suspension member between the pair of traveling tracks,
The pair of moving tracks are
A first movement track disposed relatively near the pair of traveling tracks in the specific direction;
A second moving track disposed relatively far from the pair of traveling tracks in the specific direction,
The transfer device includes a working position on the pair of traveling tracks and a position deviating from the pair of traveling tracks in the specific direction toward the one end side, and the pair of traveling devices is more than the second moving track. It is possible to move along the specific direction between the moving position on the traveling track side,
The first movement track is suspended by the suspension member and the suspension member so that the transfer device can move along the specific direction between the working position and the movement position. Is located at a position spaced vertically from the stored item,
The first movement trajectory and the second movement trajectory are such that the first movement trajectory is above the pair of travel trajectories and the second movement trajectory is relative to the pair of travel trajectories. The positional relationship below the pair of traveling tracks, or the positional relationship above the first traveling track and the first moving track, or the first moving track and The second moving track is arranged so as to have any one of the positional relationships below the pair of traveling tracks,
The traverser is
In the specific direction, the one end side of the pair of traveling tracks can be positioned on an extension line of the pair of traveling tracks, and the transfer device is received from the pair of traveling tracks and at the moving position. A pair of support parts for supporting the transport device;
The pair of support portions supporting the transport device are connected to the pair of support portions and travel on the pair of movement tracks so that the pair of support portions can move along the pair of movement tracks. Possible connections, and
The pair of support portions are separated from each other in the crossing direction so as to allow the suspension member to move between the pair of traveling tracks and between the pair of support portions along the specific direction. A storage facility that is located The storage facility according to claim 1,
The first movement trajectory and the second movement trajectory are such that the first movement trajectory is above the pair of travel trajectories and the second movement trajectory is relative to the pair of travel trajectories. The positional relationship below the pair of traveling tracks, or the positional relationship between the first moving track and the second moving track is a positional relationship above the pair of traveling tracks. Arranged as
The said connection part is a storage facility which has a 1st connection part which can drive | work on the said 1st track | orbit for a movement while it has a shape extended upwards from a pair of said support part. The storage facility according to claim 1,
The first moving track and the second moving track are positioned below the pair of traveling tracks with respect to the pair of traveling tracks. Arranged in a relationship,
The first moving track is disposed on a floor surface below the pair of traveling tracks,
The said connection part is a storage facility which has a 1st connection part which can drive | work on the said 1st track | orbit for a movement while it has a shape extended toward the downward direction from a pair of said support part. In the storage facility according to any one of claims 1 to 3,
In the specific direction, further comprising another pair of traveling tracks disposed on the opposite side of the pair of traveling tracks with the pair of moving tracks as a reference,
The other pair of traveling tracks are arranged at positions separated from each other in the intersecting direction so as to allow movement of the suspension member between the other pair of traveling tracks,
The transfer device is movable along the specific direction between the working position, the moving position, and the sub working position on the other pair of traveling tracks,
The second movement track is suspended from the suspension member and the suspension member so that the transfer device can move along the specific direction between the sub work position and the movement position. It is arranged at a position away from the stored storage in the vertical direction,
The pair of support portions are arranged in the cross direction so as to allow the suspension member to move between the other pair of traveling tracks and the pair of support portions along the specific direction. A storage facility located at a distance from each other. In the storage facility according to any one of claims 1 to 4,
The traverser further includes a transport device positioned on the pair of support portions and a connecting portion that connects the pair of support portions while avoiding stored items suspended from the transport device.