• 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:
    This submarine module for the production of electrical energy, of the type comprising a box (1) in which nuclear reactor means (2) are placed, is characterized in that the box (1) is in the form of a double-walled caisson, of which an inner wall (3) forms a containment chamber for nuclear reactor means (2), an outer wall (4) of which is in heat exchange relation with the environment (5) and forms a protective barrier vis-à-vis the environment and the volume between the two walls comprises means forming a water reservoir (7) constituting a cold source for the reactor means.
    公开号:FR3033928A1
    申请号:FR1500518
    申请日:2015-03-16
    公开日:2016-09-23
    发明作者:Vincent Gourmel；Geoffrey Haratyk；Pierre Yves Mouchel
    申请人:DCNS SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an underwater module for the production of electrical energy.
    [0002] More particularly, the invention relates to such submarine module immersible for example in sea water and which comprises at least one box in which are placed nuclear reactor means. The applicant has already proposed such a module in the framework of a project known under the brand name of "FLEXBLUE".
    [0003] This project aims to revolutionize nuclear safety by proposing an unparalleled safety concept, based on the use of an unlimited and permanently available cold source and a passive backup system allowing nuclear reactor facilities to face independently, to any accident during a mission duration of several weeks.
    [0004] This project has made it possible to highlight and design means for securing the operation of the module by using, for example, seawater as a cold source for passive refrigeration of the reactor means, insofar as the module is immersed and therefore surrounded. The immersion safety of such a module is now acquired.
    [0005] However, several problems still remain in particular in the practical realization of this module and the safety of such a module during the emergence phases, that is to say on the surface, or generally in all phases where this one is out of the water. These phases include, for example, transport phases ...
    [0006] Indeed, these phases are presented as phases of potential vulnerability for the module because the cold source, that is to say in fact the sea, is no longer available passively. The object of the invention is therefore to solve these problems. For this purpose, the subject of the invention is an underwater module for producing electrical energy of the type comprising a box in which nuclear reactor means are placed, characterized in that the box is in the form of a double-walled caisson, an inner wall of which forms a containment chamber for nuclear reactor means, an outer wall of which is in heat exchange relation with the environment and forms a protective barrier with respect to this environment and whose volume between the two walls comprises means forming a water reservoir constituting a cold source for the reactor means.
    [0007] According to other features of the module according to the invention, taken alone or in combination: the reactor means are connected to means forming a backup heat exchanger placed between the two walls of the box in the means forming a storage tank; water; - The exchanger means comprise several exchangers in corresponding backup tanks regularly distributed around the containment; - The backup tanks are provided in the upper part of the volume 10 between the two walls of the box; - The backup tanks are equipped with steam purge means forming therein; - Auxiliary reactor units are arranged in the lower part of the volume between the two walls of the box; The caisson is equipped with means for controlling the fluidic connection or isolation of the backup tanks and the external environment; - The box is composed by assembling preformed elementary blocks of box portions; the blocks are assembled to one another by welding; The casing has an outer wall of generally cylindrical shape and an inner wall of generally polygonal shape. The invention will be better understood on reading the description which will follow, given solely by way of example and with reference to the appended drawings, in which: FIG. 1 represents a schematic side sectional view illustrating the general structure of an underwater module for producing electrical energy according to the invention, - Figure 2 shows a schematic sectional view from above of such a module, - Figure 3 illustrates such a module out of the sea and FIG. 4 represents an exemplary possible embodiment of the walls of such a module. In these figures, and in particular in FIG. 1, a submarine module for producing electrical energy according to the invention has been illustrated. This submarine module comprises a casing designated by the general reference 1, in which are placed nuclear reactor means, designated by the general reference 2.
    [0008] In fact and as illustrated, the box is for example in the form of a double-walled vertical cylinder. Of course other forms are conceivable. The inner wall of this box is designated by the general reference 3 in this figure, and then forms an enclosure for confining the nuclear reactor means 2. The outer wall of the box, designated by the general reference 4, is in contact with and in particular in heat exchange relation with the environment, such as for example with sea water, designated by the general reference 5.
    [0009] This outer wall 4 forms a protective barrier of the assembly vis-à-vis this environment. The volume defined between the two inner and outer walls of the box is generally designated by the reference numeral 6 in this FIG. 1. This volume comprises means forming a water reservoir, designated for example by the general reference 7, constituting a cold source for the reactor means. In fact, and as illustrated, the reactor means 2 are connected to backup heat exchanger means, two of which are illustrated in this FIG. 1, and are designated 8 and 9.
    [0010] These backup heat exchanger means 8 and 9 are then placed between the two inner and outer walls of the box, in the cold water reservoir means such as the reservoir means 7. In fact, the heat exchanger means comprise several exchangers in corresponding backup tanks, for example regularly distributed around the containment enclosure, in the volume defined between the two walls of the box. As shown in this Figure 1, the backup tanks are provided in the upper part of the volume between the two walls of the box. In FIG. 2, there is shown nuclear reactor means 2 which are associated with four exchangers designated by references 8, 9, 10 and 11.
    [0011] These exchangers are then for example regularly distributed around the reactor means and its confinement chamber formed by the inner wall 3, in reservoir means 7 and 12, formed between the two walls of the caisson in the upper part of the defined volume. between these walls. The lower part of this volume, as designated by the general reference 13 in FIG. 1, that is to say for example the part situated under the reservoir means, can in turn be adapted to receive auxiliary systems of the reactor means or the like. It will also be noted that the caisson 1 may be equipped with means for controlling the fluidic connection or the isolation of the reservoirs and the environment.
    [0012] It will be understood that when the caisson 1 is immersed at sea, the backup exchangers make it possible to evacuate the residual heat from the reactor in the backup tanks. These are in heat exchange relationship with the environment, that is to say the sea, which then constitutes an inexhaustible cold source, through the outer wall of the box. When the box is emerged, that is to say out of the seawater, as illustrated in FIG. 3, the heat exchangers still make it possible to evacuate a certain amount of heat from the reactor means in these means. forming backup tank.
    [0013] The means forming a backup tank then constitute a cold water source for cooling the heat exchangers, when the module is out of the water, which makes it possible, for example, to ensure the safety of the latter during its transport. It should be noted in this regard that the backup tanks may be equipped with steam purge means forming therein, these purge means being for example designated by references 14 and 15 in FIG. be arranged in the upper part of the reservoir means. FIG. 4 illustrates an embodiment of a box that can be used in the constitution of such a module.
    [0014] In fact, and as illustrated, the box designated by the general reference 1 in this FIG. 4 may be constituted by assembling preformed elementary blocks of box portions, as illustrated. In this figure 4, box portions as designated by references 16 and 17 for example, can indeed be preformed, moved closer to each other and then welded to each other. This facilitates the realization of the box and in particular to make boxes with relatively large diameters without requiring implementation of specific tools, expensive and complex. It should also be noted in this regard that the casing 1 may have an outer wall 4 of generally cylindrical shape and an inner wall 3 of generally polygonal shape.
    [0015] It will be appreciated that such a submarine module structure has a number of advantages in that it is then possible to move nuclear reactor or nuclear boiler means into a vertical SPAR type structure.
    [0016] This type of structure thus makes it possible to house boilers of larger vertical dimensions. As it is a double-walled structure, the safety of the assembly is increased because the internal partition of the structure acts as a confinement enclosure while the external partition of the latter protects the enclosure from containment of external aggression. The volume created between the two partitions of the structure makes it possible to shelter large water capacities that act as intermediate intermediate immersion sources or as main cold sources in transport when the module is emerged. This volume may also house several heat exchangers or other auxiliary systems. Of course this results in the fact that the box can be made by modular construction and has a high robustness to mechanical stresses while facilitating the integration of tanks. The result is an increase in overall safety.
    [0017] Of course, still other embodiments may be envisaged. 25
    权利要求:
    Claims (10)
    [0001]
    CLAIMS1.- Subsea module for producing electrical energy, of the type comprising a box (1) in which are placed nuclear reactor means (2), characterized in that the box (1) is in the form of a double-walled caisson, of which an inner wall (3) forms an enclosure for confining the nuclear reactor means (2), an outer wall (4) of which is in heat exchange relation with the environment (5) and forms a protective barrier with respect to this environment and whose volume between the two walls comprises means forming a water reservoir (7, 12) constituting a cold source for the reactor means.
    [0002]
    2. Underwater module according to claim 1, characterized in that the reactor means (2) are connected to means forming a backup heat exchanger (7, 8, 10, 11) placed between the two walls (3). 4) of the box (1) in the water tank means.
    [0003]
    3.- submarine module according to claim 2, characterized in that the exchanger means comprise several exchangers (7, 8, 10, 11) in corresponding backup tanks (7, 12) regularly distributed around the confinement enclosure.
    [0004]
    4.- submarine module according to claim 2 or 3, characterized in that the backup tanks (7, 12) are provided in the upper part of the volume between the two walls of the box.
    [0005]
    5.- submarine module according to claim 4, characterized in that the backup tanks are provided with means (14, 15) for purging steam forming therein.
    [0006]
    6.- submarine module according to claim 4 or 5, characterized in that auxiliary reactor units are arranged in the lower part of the volume between the two walls of the box.
    [0007]
    7. Submarine module according to any one of the preceding claims, characterized in that the box (1) is equipped with means for controlling the fluid connection or isolation of the backup tanks and the environment. outside.
    [0008]
    8. Underwater module according to any one of the preceding claims, characterized in that the box (1) is composed by assembling preformed elementary blocks of box portions (16, 17).
    [0009]
    9.- submarine module according to claim 8, characterized in that the blocks are assembled to each other by welding. 3033928 7
    [0010]
    10. Underwater module according to any one of the preceding claims, characterized in that the box (1) has an outer wall (4) of generally cylindrical shape and an inner wall (3) of generally polygonal shape.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2016146443A1|2016-09-22|
    FR3033928B1|2017-04-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5247553A|1991-11-27|1993-09-21|The United States Of America As Represented By The United States Department Of Energy|Submerged passively-safe power plant|
    FR2958783A1|2010-04-13|2011-10-14|Dcns|Underwater module for producing electric energy, has nuclear boiler forming units that are housed in compartment equipped with flooding unit that floods compartment through sea water in case of incident|
    US20140321595A1|2012-01-18|2014-10-30|Dcns|Submerged or underwater electricity production module|CN107672772A|2017-09-18|2018-02-09|中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所）|A kind of external dynamic sea cooling system of underwater platform suitable for multiple hull construction|
    WO2020001931A1|2018-06-28|2020-01-02|Siemens Aktiengesellschaft|Floating body for supporting an energetic system|
    CN111916232A|2020-08-13|2020-11-10|中国核动力研究设计院|Light water nuclear reactor structure|
    CN106875988A|2017-02-15|2017-06-20|中广核研究院有限公司|Band has surplus heat the ocean reactor system platform of remover|
    法律状态:
    2016-03-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-09-23| PLSC| Publication of the preliminary search report|Effective date: 20160923 |
    2017-03-17| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-27| PLFP| Fee payment|Year of fee payment: 4 |
    2020-02-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-10| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-10| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1500518A|FR3033928B1|2015-03-16|2015-03-16|UNDERWATER MODULE FOR THE PRODUCTION OF ELECTRICAL ENERGY|FR1500518A| FR3033928B1|2015-03-16|2015-03-16|UNDERWATER MODULE FOR THE PRODUCTION OF ELECTRICAL ENERGY|
    PCT/EP2016/054987| WO2016146443A1|2015-03-16|2016-03-09|Underwater module for producing electrical energy|
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