• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a basket (1) for packaging for transporting and / or storing radioactive materials. The basket (1) comprises an internal partition (6, 8) comprising at least one wall (82, 84) and a peripheral wall (10). The wall (82, 84) has two opposite side surfaces (81, 85). The peripheral partition (10) participates with the internal partition (6, 8) in the delimitation of cells intended to house the radioactive materials. The peripheral wall (10) comprises a housing receiving an end of the at least one wall (82, 84). The housing includes two opposed housing side surfaces (102, 106) and a bottom (104) joining the two housing side surfaces (102, 106). According to the invention, the basket (1) comprises a clamping means configured to press at least one of the side wall surfaces (81, 85) against at least one of the housing side surfaces (102, 106).
    公开号:FR3024919A1
    申请号:FR1457789
    申请日:2014-08-13
    公开日:2016-02-19
    发明作者:Olivier Delage；Christophe Roger
    申请人:TN International SA；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The invention relates to a storage device for storing and / or transporting radioactive materials. BACKGROUND OF THE INVENTION More particularly, the invention relates to a storage device for the transport and / or storage of nuclear fuel assemblies, preferably irradiated. STATE OF THE PRIOR ART Such storage devices, also called "baskets" or "racks" storage, have a plurality of cells inside which are placed irradiated nuclear fuel assemblies, for transport and / or or their storage. The fuel assemblies are in particular brought to be moved from the nuclear power plant, from the end of their use as a source of energy, to their storage or treatment site.
    [0002] This type of basket is subjected to high temperatures. However, since the mechanical characteristics of the structural elements constituting the basket are degraded with temperature, it is necessary to evacuate the heat flow produced by the irradiated assemblies contained in the basket to the outside, in order to limit the rise in temperature. in the basket and thus ensure that its mechanical strength is compatible with the so-called free fall tests on an undeformable target. In such baskets, peripheral partitions are fixed to internal partitions by clamping screws extending mainly in the longitudinal direction of the internal partitions. The internal partitions are then in thermal contact with the peripheral partitions essentially on the edge of the internal partitions.
    [0003] It is useful to increase the thermal contact area between the internal partitions and the peripheral partitions, in order to improve the evacuation of the heat out of the basket.
    [0004] SUMMARY OF THE INVENTION The invention aims at solving at least partially the problems encountered in the solutions of the prior art. In this regard, the invention relates to a basket for transport packaging and / or storage of radioactive materials such as nuclear fuel assemblies. The basket comprises at least one internal partition and at least one peripheral partition. The internal partition comprises at least one wall having two opposite side surfaces. The internal partition delimits at least partially on either side thereof two cells intended to house the radioactive materials, the peripheral partition participating with the internal partition at the delimitation of the cells. The peripheral wall comprises a housing receiving an end of the at least one wall, the housing comprising two opposite housing side surfaces and a bottom joining the two side housing surfaces.
    [0005] According to the invention, the basket comprises a clamping means configured to press at least one of the wall side surfaces against at least one of the housing side surfaces. The lateral contact of the at least one inner wall wall with at least one of the side surfaces of its housing provides an increase in the thermal contact area between the inner wall and the peripheral wall to which the inner wall is attached. This results in a better evacuation of heat out of the basket and therefore a decrease in temperatures within the structural elements constituting it. The mechanical strength of the basket is thus favored by this improved heat dissipation.
    [0006] When the wall edge is also in thermal and mechanical contact with the bottom of the housing, the heat removal from the basket is further increased. The invention may optionally include one or more of the following features combined with one another or not.
    [0007] Depending on the type of radioactive material, the inner partition may comprise two parallel walls separated by a gap, each of the walls having an outer side surface and an inner side surface, at least one of the inner / outer side surfaces being configured to be plated. against one of the housing side surfaces by the clamping means. When the inner wall end comprises two walls received in two separate and separate housings, it is preferable that each of the wall side surfaces is in thermal and mechanical contact with one of the opposite housing side surfaces.
    [0008] According to a particular embodiment, the end of the at least one wall is pinched in the housing, being in mechanical contact with the two lateral housing surfaces. According to an advantageous embodiment, the peripheral wall comprises an interior surface oriented towards the inside of the basket and participating in the delimitation of the cells, the housing opening at the inner surface, so that at least one of the lateral surfaces housing is orthogonal to the inner surface. Preferably, a value ratio of a thickness of at least one wall to a sidewall surface contact surface length with one of the housing side surfaces in a transverse sectional plane of the basket is between 0.2 and 1. A ratio of 1 remains advantageous when the two side wall surfaces are in contact with the housing side surfaces. According to another advantageous embodiment, the internal partition is in mechanical contact with the peripheral wall over at least 3/4 of the height of the peripheral wall, preferably over substantially the entire height of the basket. According to another particular embodiment, the basket comprises a plurality of internal partitions formed of stacked and intercrossed structural elements. The clamping means preferably comprises a plurality of clamping members spaced apart from one another along the height of the basket. The clamping members are preferably configured to each exert a clamping force whose value is independent of that of the other clamping members. The plurality of spaced-apart clamping members particularly facilitate mechanical and thermal contact of the peripheral wall with a one-piece internal partition which extends substantially over the entire height of the basket. Furthermore, a plurality of clamping members spaced apart from one another along the height of the basket is also of interest, when the internal partitions are formed of stacked and interlocking structural elements. Indeed, the 10 clamping members then make it possible to resume all the possible differential dilations and possible manufacturing tolerances and mounting stacked and intercrossed structural elements. Advantageously, the clamping means is configured to be tightened / loosened from outside the basket. The assembly / disassembly operations of the basket are particularly facilitated. According to a particular embodiment, the clamping means comprises a screw and a nut configured to cooperate with the screw. The clamping means is then of simple structure and can also serve to fix the internal partition to the peripheral wall.
    [0009] According to an advantageous embodiment, the clamping means comprises at least one jaw, the jaw being urged apart by the nut to press at least one of the side wall surfaces against at least one of the lateral surfaces of the housing. The clamping means preferably comprises at least a first inclined surface, the peripheral wall or the wall end including at least one second inclined surface complementary to the first inclined surface and configured to bear on the first inclined surface. Increasing the clamping surface facilitates lateral plating of the wall in its housing. According to an advantageous embodiment, the clamping means comprises at least one elastic clamping element situated in the space defined above, the elastic clamping element tending to press at least one of the external lateral surfaces against one of the side surfaces of housing. The invention also relates to a package for transporting and / or storing radioactive materials such as nuclear fuel assemblies, the package comprising a package and a lid closing the package, the package housing a basket as defined above. The invention also relates to a method of assembling a basket as defined above, comprising, after a prior step of receiving the wall end in its housing, a plating step of at least 1 one of the side wall surfaces 10 against one of the housing side surfaces, so that the wall is located between the clamping means and the housing side surface against which the side wall surface is pressed. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood on reading the description of exemplary embodiments, given purely by way of indication and in no way limiting, with reference to the appended drawings in which: FIG. 1 is a fragmented diagrammatic representation broken down a basket for the transport / storage of radioactive materials, according to a first preferred embodiment of the invention (clamping means not shown); FIG. 2 is an exploded partial schematic representation of a basket for the transport / storage of radioactive materials, according to a second preferred embodiment of the invention (clamping means not shown); Figure 3 is a partial cross-sectional schematic view of the basket according to the first or second embodiment, showing the clamping of an internal partition in a peripheral partition housing; Figure 4 is a partial schematic representation in perspective of the peripheral wall of Figure 3; FIG. 5 is a partial schematic representation of an alternative embodiment of FIG. 3, showing the tightening of an internal partition in a peripheral partition housing; Fig. 6 is a partial diagrammatic representation of another alternative embodiment of Fig. 3 showing the tightening of an internal partition in a peripheral partition housing; Figure 7 is a partial schematic representation of an alternative embodiment of Figure 5, showing the clamping of an internal partition in a peripheral partition housing; Figure 8 is a partial diagrammatic representation of another alternative embodiment of Figure 3 showing the clamping of an internal partition in a peripheral partition housing. DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS Identical, similar or equivalent parts of the different figures bear the same numerical references in order to facilitate the passage from one figure to another. Figure 1 shows a storage device 1 for irradiated nuclear fuel assemblies in a package (not shown) for transporting and / or storing the fuel assemblies. The storage device 1 is called basket in the following description. The basket 1 comprises a head plate 3 and a bottom (not shown). With reference to Figures 1 and 2, the basket 1 comprises a plurality of adjacent cells 2, the latter each extending along a longitudinal axis 4 of the basket. The cells 2 are of square section. They are able to receive each a fuel assembly of square section. Nevertheless, the fuel assemblies and / or the cells 2 may also adopt other forms, such as a hexagonal shape.
    [0010] The cells 2 are provided so as to be juxtaposed to each other. They are made through a plurality of partitions 6, 8 and 10. The partitions 6, 8 and 10 are divided into three sets of separate partitions, defined respectively by a first set of internal partitions 6, a second set of internal partitions 8, and 5 a set of peripheral partitions 10 located at the periphery of the internal partitions 6 and 8. The partitions 6, 8, 10 are common to several cells 2. As such, it is noted that the internal partitions 6 , 8 generally participate in the delimitation of several cells 2 located on either side of the internal partition 6, 8 concerned. The partitions 6, 8 comprise one or more walls 80, 82, 84 for separating the cells 2. These walls 80, 82, 84 take roughly the shape of a plate. The internal partitions 6, 8 are assembled together so as to be arranged parallel and perpendicular to each other, to form cells 2 of square section. The first internal partitions 6 are arranged parallel to each other, as well as the second internal partitions 8 15 between them. In addition, the first internal partitions 6 are assembled so as to be substantially perpendicular to the second internal partitions 8. The peripheral partitions 10 are fixed to the internal partitions 6, 8, so as to close the cells 2 at the periphery of the basket 1. In addition In other words, the internal partitions 6, 8 constitute at least three of the four plane lateral faces delimiting a cell 2. The inner surfaces 17 of peripheral partitions 10 each optionally form one of the four plane lateral faces delimiting a cell 2. These inner surfaces 17 are oriented towards the interior of the basket 1, as opposed to the outer surfaces 19 of the peripheral partitions 10 which are situated at the periphery of the basket 1 and which delimit the outside of the basket 1. The outer surfaces 19 are preferably arcs of circles, so as to facilitate the insertion / removal of the basket 1 in the circular cavity of a package (not shown) Referring more specifically to the first embodiment, the internal partitions 6 and 8 are made in one piece, so as to extend each along the entire length of the cell 2 which they define. Similarly, the peripheral partitions 10 are made in one piece, so as to extend each along the entire length of the cells 2 that they define. With specific reference to FIG. 2, the cells 2 are made by means of a plurality of structural assemblies 6a, 8a with notches stacked in a stacking direction 11 parallel to the longitudinal axis 4 of the basket. The stacking direction 11 extends from a storage device bottom to a basket head plate. The height of the basket is also referred to as the stacking direction 11. The stack of structural assemblies 6a, parallel in a first direction 13, forms a first internal partition 6. The stack of structural assemblies 10 8a, parallel according to a second direction 15, forms a second internal partition 8. The directions 11, 13 and 15 are orthogonal two by two. The structural assemblies with notches 6a, 8a are therefore crisscrossed perpendicularly. The structural assemblies 6a, 8a extend between at least two opposite peripheral partitions 10 to which they are attached. In the second embodiment, the peripheral partitions 10 are made in one piece. Alternatively, it is quite possible to provide that each peripheral wall 10 is made via a plurality of stacked structural assemblies. Figures 3 and 4 show the tightening of one of the internal partitions 6, 8 in a housing of a peripheral wall 10 of a basket 1, according to the first or the second embodiment. The internal partition 6, 8 comprises two parallel walls 82, 84 separated by a spacing. The walls 82, 84 are preferably identical. Each of the walls 82, 84 has an outer side surface 81 and an inner side surface 85, so that the outer side surface 81 and the inner side surface 85 are on either side of the wall 82, 84. el spacing is kept constant, for example by means of spacers (not shown) bearing on the inner side surfaces 85, within the spacing ei .. The end of each of the parallel walls 82, 84 of the internal partition 6, 8 is received in a housing 100 made in the peripheral wall 10. These housings 100 each comprise two opposite and parallel side surfaces 102, 106. The lateral surfaces 102, 106 of housing are joined by a bottom 104 The housings 100 open at an inner surface 17 of the peripheral wall 10, so that the lateral surfaces 102, 106 of the housing are orthogonal to the inner surface 17. The inner surface 17 e the internal partition 6, 8 delimit two contiguous cells 2, 5 on either side of the internal partition 6, 8. The outer lateral surface 81 of each of the walls 82, 84 is pressed against one of the lateral surfaces 102, 106 The external lateral surfaces 81 have a shape complementary to the housing side surfaces 102, 106, so as to promote the thermal contact of the internal partitions 6, 8 with the peripheral partitions 10. In the embodiment of FIG. embodiment of Figure 3, the housing side surfaces 102, 106 of an inner wall end 6, 8 are two by two parallel. Referring more specifically to FIG. 4, the clamping means 9 comprises a plurality of clamping members 90 spaced from each other along the height of the basket 1. Each clamping means 90 includes a screw 92 and a nut 96 cooperating with the screw 92. The screws are housed in holes 91 of the peripheral wall 10, passing through the outer surface 19. In this way, the clamping elements 90 can be tightened / loosened from the outside of the basket 1, in The nut 96 is located between two jaws 94, so that the jaws 94 are urged apart by the nut 96 and the screw 92 to press the side wall surfaces 81 against the side surfaces 102 of housing. More specifically, the nut 96 has two first inclined surfaces 97 and the peripheral wall 10 comprises, at each jaw 94, two second inclined surfaces 95 of complementary shape of the first inclined surfaces 97. The first 25 surfaces and second inclined surfaces 95 , 97 are intended to be in abutment on one another, so as to maximize the mechanical contact surface between them and promote the lateral clamping of the walls 82, 84 of internal partition 6, 8 in their housing 100. The elements Each clamping force 90 can each exert a lateral clamping force F1 whose value is independent of that of the other clamping elements 90, as a function of the tension exerted on the screw 92 and the nut 96. The clamping elements 90 3024919 10 then make it possible to take up even more easily the possible differential expansions and the possible tolerances of manufacture and assembly of the internal partitions 6, 8 and / or peripheral partitions 10. For this purpose, independent clamping elements 90 spaced apart from each other along the height of the basket 1 allow in particular a mechanical and thermal contact of the internal partition 6, 8 and the peripheral wall 10 over substantially the entire height of the basket 1, that is to say for example at least 3/4 of the height of the peripheral wall 10. In the embodiment of Figures 3 and 4, the jaws 94 are formed in one piece, in particular by extrusion, with the peripheral wall 10. The walls 82, 84 of the internal partition are therefore in thermal contact with the peripheral wall 10, at least at the level of the two opposite lateral surfaces 102, 106 of the housing. The walls 82, 84 are thus clamped in their housing 100. The internal partition 6, 8 and the clamping elements 90 are substantially symmetrical by plane plane symmetry parallel to the walls 82, 84 and passing through the axis 93. In addition, the first inclined surfaces 97 are inclined towards the outer surface 19. The walls 82, 84 are in contact with each of the bottom 104 of their respective housing 100. The clamping elements 90 of the embodiment of FIGS. 3 and 4 are the only means for fixing the internal partition 6, 8 to the peripheral partition 10.
    [0011] Alternatively, each jaw 94 could be integrally formed with one of the walls 82, 84 or attached to one of the walls 82, 84, so as to project from the remainder of the inner wall surface 85 . These variant embodiments may have the advantage of allowing the jaws 94 to be machined more easily. Moreover, the internal partition 6, 8 fixed to the peripheral wall 10 and / or the clamping elements 90 may also have no plane symmetry. . In another variant, the first inclined surfaces 97 may of course be of opposite inclinations, that is to say approaching one another towards the inner surface 17. Alternatively, it may there is a clearance between the edge of each of the walls 82, 84 and the bottom 104 of the housing, making it possible in particular to compensate for any differential expansions of the basket 1 and / or any shocks to the basket 1 according to direction 93. Nevertheless, the only thermal contact of the outer side surfaces 81 with the housing surfaces 102 and possibly the thermal contact of the inner side surfaces 85 with the housing side surfaces 106 is generally sufficient to permit satisfactory heat exchange of the internal partitions. 6, 8 with the peripheral partitions 10. In this respect, it is generally sufficient that the value ratio of the thickness 107 of each of the walls 82, 84 on the wall contact surface surface 105 of its outer lateral surface 81 with one of the lateral surfaces 102, 106 of housing, in the transverse sectional plane of the basket 1 shown in FIG. 3 or in FIG. 8 and for example the plane Transverse P of Figure 2, between 0.2 and 1. Alternatively, the basket 1 may comprise fixing means (not shown) of the internal partitions 6, 8 to the peripheral walls 10, the means of tightening 9 only for pressing the wall or walls 80, 82, 84 against at least one of the lateral surfaces 102, 106 of housing, once the internal wall 6, 8 is at least partially fixed to the peripheral wall 10 FIG. 5 shows an alternative embodiment of FIGS. 3 and 4, in which the internal partition 6, 8 comprises a single wall 80. This single wall 80 comprises two opposite external lateral surfaces 81 and a edge 83 joining these two lateral surfaces. . The edge 83 is at a distance from the bottom 104 of the housing 100. The external lateral surfaces 81 of the internal partition 6, 8 are pressed against the lateral surfaces 102, 106 of the housing by a clamping element 9 comprising a single jaw 94. The jaw 94 is for example formed in one piece by extrusion with the peripheral wall 10. This jaw 94 is clamped laterally against the wall 80 by a screw 92 cooperating with a nut 96 received in a housing 99 nut. The nut housing 99 opens out onto the inner surface 17, so as to be locally orthogonal to the inner surface 17. The variant embodiment of FIG. 6 differs from that of FIGS. 3 and 4 in that it comprises two elements. In addition, the clamping elements 90 are received at least partially in the housings 100, and the clamping elements 90 are free of jaws 94. The clamping elements 90 are at least partially accommodated in the housings 100, and the clamping elements 90 are devoid of jaws 94. 90 each comprise a screw 92 and a nut cooperating with the screw 92. The screw holes 91 open into the housings 100 at the level of the funds 104 housing. The nuts 96 are located in the housings 100, bearing against the outer wall surface 81 82, 84. The nuts 96 bear the first inclined surfaces 97 and the second inclined surfaces 95 form the first lateral surfaces 102 of the housing. The second inclined surfaces 95 are cut directly into the peripheral wall 10, so as to open at the inner surface 17 at an angle other than 90 ° to the interior surface 17. In a manner similar to the embodiment of FIGS. and 4, the screws 92 are tightened with a clamping force F2 oriented in the longitudinal direction of the internal partition 6, 8, that is to say in the first direction 13 or the second direction 15. The nuts 96 then exert Directly a lateral clamping force F1 on the outer side surfaces 81 of wall 82, 84, so as to press the inner side wall faces 85, 84 against the second lateral housing surfaces 106. The spacing e1 between the walls 82, 84 of internal partitions is kept constant by a transverse spacer 86 resting on the inner lateral surfaces 85 of wall 82, 84 and by the portion of the peripheral partition 10 situated between the two contiguous housings 100 . The variant embodiment of FIG. 7 differs from the embodiment of FIG. 5 in that the clamping element 90 is at least partially in the housing 100, and in that the clamping element 90 does not comprise either a nut or bit. The wall 80 comprises two opposite outer side surfaces 81 and joined by a ring 83. The clamping element 90 comprises a screw 92 whose head is accessible from the outside of the basket 1, and a pusher 96 intended to press one of the outer side surfaces 81 against the first side surface 102 of housing. Due to the pusher 96, the other external lateral wall surface 81 is not in mechanical and thermal contact with the second housing side surface 106. The screw 92 bears on the pusher 96 which is located at least partially in a recess 99 of the peripheral wall 10, opening into the housing 100. The edge 83 of the wall is located at a distance from the bottom 104 of the housing. FIG. 8 represents another variant of the invention which differs from the embodiment of FIGS. 3 and 4 in that the clamping elements 90 do not comprise screws, no nuts and no jaws. Furthermore, the clamping elements 90 are located at a distance from the peripheral partition 10. Finally, the two walls 82, 84 of the internal partition 6, 8 are received in a single housing 100. The inner wall end 6, 8 and the clamping member 90 are symmetrical by plane symmetry passing through the axis 93. The clamping member 90 shown in this figure comprises an elastic clamping member 98 and a clamping member 90. constraint 920 of the resilient clamping member 98, the biasing member 920 also for holding the clamp member 98 between the inner side surfaces 85. The resilient clamping member 98, for example, takes the form of a set spring steel curved spring washers. The set of washers is located in the spacing el and is supported on internal lateral surfaces 81 which it solicits in spacing from one another. The outer side surfaces 81 of wall 82, 84 are then pressed against the lateral surfaces 102, 106 of housing, with a lateral force F1. The constraining member 920 is for compressing the resilient clamping member 98 so as to allow it to be inserted between the inner wall faces 81. Furthermore, the constraint element 920 can also serve to bias the resilient clamping member 98 apart, so that the elastic clamping member 98 sufficiently distances the inner side surfaces 85 from each other for pressing the outer side surfaces 81 against the housing side surfaces 102, 106.
    [0012] The basket was assembled according to the method described below. The internal partitions 6, 8 are previously fixed to each other so as to form the central cells 2 of the basket. Subsequently, the peripheral partitions 10 are assembled to the internal partitions 6, 8, so as to close laterally the peripheral cells 2 of the basket 1. A bottom and a head plate 3 contribute to maintaining the whole of the walls of the basket 3024919 14 1, on either side of the height 11 of the basket, the head plate also for handling the basket. The method of assembling the internal partition 6, 8 with the peripheral wall 10 is now described in more detail with reference to FIGS. 3 to 8.
    [0013] The two opposite ends of the walls 80, 82, 84 of internal partitions 6, 8 are first received in their respective housings 100. The clamping means 9 located at one of the plate ends then at least one of the side surfaces 81, 85 of wall 80, 82, 84 against at least one of the side surfaces 102, 106 housing. The wall 80, 82, 84 is then located between this lateral surface 102, 106 of housing and the clamping means 9. When the internal partition 6, 8 comprises two walls 82, 84, these two walls 82, 84 are preferably first received both in their housing 100, before the clamping means 9 plates against at least one of the side surfaces 102, 106 housing.
    [0014] In addition, the internal partitions 6, 8 can be at least partially fixed to the peripheral partitions 10, before the clamping means 9 ensures the plating of at least one of the lateral surfaces 81, 85 of the at least one wall 80. , 82, 84 against the corresponding housing side surface 102, 106. The walls 80, 82, 84 can optionally slide along the direction of elongation of the internal partitions 6, 8, that is to say along the first direction 13 or along the second direction 15, after their clamping against at least one of the lateral housing surfaces 102, 106 by the clamping means 9. This sliding makes it possible, for example, to better compensate for any differential expansions of the basket 1 and / or to take up shocks to the basket 1.
    [0015] Of course, various modifications may be made by those skilled in the art to the invention which has just been described without departing from the scope of the disclosure of the invention.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Basket (1) for packaging for the transport and / or storage of radioactive materials such as nuclear fuel assemblies, the basket (1) comprising: at least one internal partition (6, 8) comprising at least one wall (80, 82, 84) having two opposite lateral surfaces (81, 85), and at least one peripheral partition (10), the internal partition (6, 8) delimits at least partially on either side of it two cells ( 2) for accommodating the radioactive materials, the peripheral wall (10) participating with the inner wall (6, 8) in the delimitation of the cells (2), the peripheral wall (10) comprising a housing (100) receiving a end of the at least one wall (80, 82, 84), the housing (100) comprising two opposite housing side surfaces (102, 106) and a bottom (104) joining the two housing side surfaces (102, 106), characterized in that the basket (1) comprises a clamping means (9) configured to at least one of the side wall surfaces (81, 85) against at least one of the housing side surfaces (102, 104).
    [0002]
    2. Basket (1) according to the preceding claim, wherein the inner wall (6, 8) comprises two parallel walls (82, 84) separated by a spacing, each of the walls (82, 84) having an outer lateral surface (81, 84). and an inner side surface (85), at least one of the outer side surfaces (81) or at least one of the inner side surfaces (85) being configured to be pressed against one of the housing side surfaces (102, 106) by the clamping means (9). 3024919 16
    [0003]
    3. Basket (1) according to any one of the preceding claims, wherein the end of the at least one wall (80, 82, 84) is clamped in the housing (100), being in mechanical contact with the two side surfaces (102, 106) of housing. 5
    [0004]
    4. Basket (1) according to any one of the preceding claims, wherein the peripheral wall (10) comprises an inner surface (17) oriented towards the inside of the basket (1) and participating in the delineation of the cells (2). the housing (100) opening at the inner surface (17) so that at least one of the housing side surfaces (102, 106) is orthogonal to the inner surface (17). 10
    [0005]
    A basket (1) as claimed in any one of the preceding claims, wherein a value ratio of a thickness (107) of the at least one wall to a surface length (105) of lateral wall surface contact with one of the lateral housing surfaces in a transverse cutting plane of the basket (1) is between 0.2 and 1.
    [0006]
    Cart (1) according to any one of the preceding claims, wherein the internal partition (6, 8) is in mechanical contact with the peripheral wall (10) over at least 3/4 of the height of the peripheral wall ( 10), preferably over substantially the entire height of the basket (1).
    [0007]
    The basket (1) according to any one of the preceding claims, comprising a plurality of internal partitions (6,
    [0008]
    8) formed of stacked and interlocking structural assemblies (6a, 8a). The basket (1) as claimed in any one of the preceding claims, wherein the clamping means (9) comprises a plurality of clamping members (90) spaced from one another along the height of the basket (1). ), and preferably configured to each exert a clamping force (F1) whose value is independent of that of the other clamping elements (90). 3024919 17
    [0009]
    Basket (1) according to any one of the preceding claims, wherein the clamping means (9) is configured to be tightened / loosened from outside the basket (1). 5
    [0010]
    10. Basket (1) according to any one of the preceding claims, wherein the clamping means (9) comprises a screw (92) and a nut (96) configured to cooperate with the screw (92).
    [0011]
    11. Basket (1) according to the preceding claim, wherein the clamping means (9) comprises at least one jaw (94), the jaw (94) being urged apart by the nut (96) to press at least one of the side wall surfaces (81) against at least one of the housing side surfaces (102).
    [0012]
    The basket (1) according to any one of the preceding claims, wherein the clamping means (9) comprises at least a first inclined surface (97), the peripheral wall (10) or the wall end (80). , 82, 84) comprising at least a second inclined surface (95) complementary to the first inclined surface (97) and configured to bear on the first inclined surface (97). 20
    [0013]
    The basket (1) according to any one of claims 2 to 9 in that they depend on claim 2, wherein the clamping means (9) comprises at least one resilient clamping member (98) located in the spacing, the resilient clamping member (98) tending to press at least one of the outer side surfaces (81) against one of the housing side surfaces (102, 106). 25
    [0014]
    14. Transport and / or storage containers for radioactive materials such as nuclear fuel assemblies, comprising a package and a lid closing the package, the package housing a basket (1) according to any one of the preceding claims. . 3024919 18
    [0015]
    15. A method of assembling a basket (1) according to any one of claims 1 to 13, comprising, after a step of receiving the end of the wall (80, 82, 84) in the housing (100 ), a step of plating at least one of the wall side surfaces (81, 85) against at least one of the housing side surfaces (102, 106), so that the wall (80, 82) , 84) is located between the clamping means (9) and the receiving side surface (102, 106) against which the side wall surface (81, 85) is pressed.
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    同族专利:
    公开号 | 公开日
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    CN106663484B|2018-09-07|
    EP3180790B1|2018-07-11|
    ES2690475T3|2018-11-21|
    JP6674444B2|2020-04-01|
    WO2016023849A1|2016-02-18|
    JP2017523428A|2017-08-17|
    CN106663484A|2017-05-10|
    EP3180790A1|2017-06-21|
    US20170229199A1|2017-08-10|
    KR20170043517A|2017-04-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2747825A1|1996-04-19|1997-10-24|Transnucleaire|Storage rack for nuclear fuel|
    JP2004163120A|2002-11-08|2004-06-10|Mitsubishi Heavy Ind Ltd|Basket for storing recycled fuel assembly and recycled fuel assembly storage container|
    FR2961942A1|2010-06-25|2011-12-30|Tn Int|CONTAINER FOR THE TRANSPORT AND / OR STORAGE OF RADIOACTIVE MATERIALS|
    US5651038A|1996-02-06|1997-07-22|Sierra Nuclear Corporation|Sealed basket for pressurized water reactor fuel assemblies|
    JP4621699B2|2007-02-13|2011-01-26|株式会社東芝|Spent fuel storage rack|
    JP5010491B2|2008-01-30|2012-08-29|三菱重工業株式会社|Recycled fuel assembly storage basket, recycled fuel assembly storage container, and method for manufacturing recycled fuel assembly storage basket|
    JP5205540B1|2012-09-20|2013-06-05|株式会社カワハラ技研|Radioactive contaminant storage container|FR3044819B1|2015-12-03|2017-12-22|Tn Int|STORAGE DEVICE FOR STORING AND / OR TRANSPORTING NUCLEAR FUEL ASSEMBLIES, COMPRISING STAGES WITH DIFFERENTIATED FUNCTIONS|
    TW201928994A|2017-12-20|2019-07-16|美商Ｔｎ美國有限責任公司|Modular basket assembly for fuel assemblies|
    KR101974773B1|2018-01-26|2019-09-05|두산중공업 주식회사|Shielding and cutting device of reactor vessel|
    US20210272713A1|2019-12-09|2021-09-02|Holtec International|Nuclear fuel storage system with integral shimming|
    法律状态:
    2015-08-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-19| PLSC| Search report ready|Effective date: 20160219 |
    2016-08-31| PLFP| Fee payment|Year of fee payment: 3 |
    2017-08-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-08-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-08| ST| Notification of lapse|Effective date: 20200406 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457789A|FR3024919B1|2014-08-13|2014-08-13|BASKET FOR TRANSPORTING AND / OR STORING RADIOACTIVE MATERIALS|FR1457789A| FR3024919B1|2014-08-13|2014-08-13|BASKET FOR TRANSPORTING AND / OR STORING RADIOACTIVE MATERIALS|
    PCT/EP2015/068331| WO2016023849A1|2014-08-13|2015-08-10|Basket for transport and/or storage of radioactive materials|
    ES15753656.6T| ES2690475T3|2014-08-13|2015-08-10|Basket for transporting and / or storing radioactive materials|
    US15/502,916| US10573422B2|2014-08-13|2015-08-10|Basket for transport and/or storage of radioactive materials|
    CN201580043123.6A| CN106663484B|2014-08-13|2015-08-10|Basket for transporting and/or storing radioactive substance|
    EP15753656.6A| EP3180790B1|2014-08-13|2015-08-10|Basket for transport and/or storage of radioactive materials|
    JP2017506303A| JP6674444B2|2014-08-13|2015-08-10|Baskets for transport and / or storage of radioactive material|
    KR1020177003336A| KR20170043517A|2014-08-13|2015-08-10|Basket for transport and/or storage of radioactive materials|
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