System for continuous charging into a reactor and method for continuous charging into a reactor

Abstract

The embodiment of the invention relates to the technical field of reactors, in particular to a system for continuously loading materials into a reactor and a method for continuously loading the materials into the reactor, and the system comprises a material conveying device which is used for accommodating materials and is arranged to drive the materials to move to a transfer station; the transfer device is used for transferring the materials to the receiving station and transferring the materials located at the receiving station into the material storage device; and the material storage device is used for receiving the materials transferred by the transfer device and heating the materials so as to load the materials into the reactor. According to the embodiment of the invention, the preheated materials are conveyed to the transfer station through the material conveying device, and the materials are transferred into the material storage device through the transfer device, so that continuous transfer of the materials can be realized, and the heating time of the materials is shortened; according to the technical scheme, the situation that needed materials are firstly loaded into a material storage container and then heated in a traditional material changing process is not needed, meanwhile, transferring operation is easy and convenient, material changing time can be shortened, and efficiency is high.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of reactor technology, and in particular to a system for continuously charging a reactor and a method for continuously charging a reactor. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] A fast breeder reactor (hereinafter referred to as fast reactor) is a reactor that can utilize nuclear fission chain reactions rich in fissionable nuclides to release huge amounts of heat energy, and then transfer the heat energy to high-temperature and high-pressure steam through the circulation of coolant, thereby driving a steam turbine generator to generate electricity.

[0004] Due to the harsh working conditions of fast reactors, the refueling operation of fast reactors is required to be high. Usually, specially designed refueling equipment is used to remove the spent fuel assemblies from the reactor core and insert new or regenerated fuel assemblies. The current refueling equipment and refueling process are not ideal. Summary of the invention

[0005] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In a first aspect, an embodiment of the present application provides a system for continuously loading a reactor, comprising: a material transportation device, a transfer device and a material storage device, wherein the material transportation device is used to accommodate preheated materials and is configured to drive the materials to move so that the materials are located at a transfer station; the transfer device is used to transfer materials in the material transportation device located at the transfer station to a receiving station, and to transfer materials located at the receiving station to the material storage device; the material storage device is arranged close to the receiving station, and is used to receive the materials transferred by the transfer device and heat the materials so as to load the materials into the reactor.

[0007] The embodiments of the present application transport the preheated material through a material transport device, transport it to a transfer station, and use the transfer device to transfer the material to a material storage device. This can achieve continuous transfer of the material and reduce the heating time of the material. There is no need to first load all the required materials into the material storage container and then heat them as in the traditional material change process. At the same time, the transfer operation is relatively simple, which is conducive to reducing the material change time and the space occupied by the continuous loading system, and the material change efficiency is relatively high.

[0008] On the second aspect, an embodiment of the present application also provides a method for continuously loading a reactor, which includes the following steps: S1. Performing gas replacement on a material transport device for accommodating materials so that the gas atmosphere in the material transport device is an inert atmosphere; S2. Loading materials into the material transport device, and using the material transport device to move the materials to a transfer station; S3. Using a transfer device to transfer materials in the material transport device at the transfer station to a receiving station; S4. Using a transfer device to transfer materials at the receiving station to a material storage device; S5. Using a material storage device to receive materials transferred by the transfer device, so as to load the materials into the reactor.

[0009] These and other advantages of the present application will become more apparent through the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the above and other advantages and features of the present application, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present application and should not be regarded as limiting the scope of the present application.

[0011] Figure 1 is a schematic structural diagram of a system for continuously charging a reactor according to an embodiment of the present application;

[0012] Figure 2 yes Figure 1 A partial structural schematic diagram of a continuous charging system shown;

[0013] Figure 3 is a schematic structural diagram of a transfer device according to an embodiment of the present application;

[0014] Figure 4 is a schematic structural diagram of a transfer device and a containing assembly according to an embodiment of the present application;

[0015] Figure 5 is a structural schematic diagram of a material storage device according to an embodiment of the present application;

[0016] Figure 6 It is a schematic flow chart of a method for continuously loading fuel into a reactor according to an embodiment of the present application.

[0017] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.

[0018] Description of reference numerals:

[0019] 10. Material transport device; 11. Transport member; 12. Accommodation component; 121. Accommodation member; 122. Second rotating member;

[0020] 20. Transfer device; 21. First transfer component; 211. Transfer part; 212. Moving part; 213. Moving matching part; 22. Second transfer component; 221. First rotating part; 2211. First driving part; 2212. First rotating part; 2213. First connecting part; 2214. Grasping part; 2215. Display part; 2216. Guide part; 222. Receiving part; 2221. Material receiving port; 2222. Material transfer port; 2223. Material receiving channel;

[0021] 30. Material storage device; 31. Material storage container; 311. Material inlet and outlet; 312. Accommodating chamber; 32. Heating assembly; 321. Heating element; 322. Insulating element; 33. Third rotating element; 331. Second driving part; 332. Second connecting part; 333. Second rotating part;

[0022] 40. Reactor building; 401. Transfer station; 402. Receiving station; 403. Materials. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0024] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in this application should have the common meanings understood by persons with ordinary skills in the field to which this application belongs.

[0026] In the description of the embodiments of the present application, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the related art, for most fast reactors, during the refueling process, a large number of new fuel assemblies need to be loaded into the transfer container first, and then the gas inside the transfer container is replaced, and the fuel assemblies in the transfer container are heated for a long time, so that the fuel assemblies are heated to a predetermined temperature before the subsequent loading operation of the new fuel assemblies is performed. This loading method not only wastes a lot of time, but also requires a large volume of transfer containers when storing and heating a large number of new fuel assemblies, which is not conducive to the layout and economic efficiency of the plant. At the same time, if the refueling time is too long, it will affect the reactor load factor and increase the reactor operation cost.

[0028] In view of the above technical problems, an embodiment of the present application provides a system for continuously charging a reactor. Figure 1 is a schematic structural diagram of a system for continuously charging a reactor (hereinafter referred to as a continuous charging system) according to an embodiment of the present application. Figure 2 yes Figure 1 The partial structural diagram of the continuous charging system shown in FIG. Figure 1 and Figure 2 As shown, the continuous loading system includes: a material transportation device 10 , a transfer device 20 and a material storage device 30 .

[0029] The material transport device 10 is used to accommodate the preheated material 403 and is configured to move the material 403 so that the material 403 is located at the transfer station 401 .

[0030] The transfer device 20 is used to transfer the material 403 in the material transportation device 10 located at the transfer station 401 to the receiving station 402 , and to transfer the material 403 located at the receiving station 402 to the material storage device 30 .

[0031] The material storage device 30 is disposed near the receiving station 402 and is used to receive the material 403 transferred by the transfer device 20 and heat the material 403 so as to load the material 403 into the reactor.

[0032] The embodiment of the present application transports the preheated material 403 through the material transport device 10, transports it to the transfer station 401, and uses the transfer device 20 to transfer the material 403 to the material storage device 30. In this way, the continuous transfer of the material 403 can be achieved, and the heating time of the material 403 can be reduced. There is no need to first load all the required materials 403 into the material storage container 31 and then heat it in the traditional material change process. At the same time, the transfer operation is relatively simple, which is conducive to reducing the material change time and the space occupied by the continuous loading system, and the material change efficiency is relatively high.

[0033] In some embodiments, the continuous loading system is disposed in the reactor building 40. The transfer station 401 and the receiving station 402 are located in the reactor building 40.

[0034] In some embodiments, material 403 is a fuel assembly.

[0035] In some embodiments, Figure 3 is a schematic diagram of the structure of a transfer device according to an embodiment of the present application, such as Figure 3 As shown, the transfer device 20 includes a first transfer component 21 and a second transfer component 22. The first transfer component 21 is arranged above the transfer station 401, and is used to lift the material 403 in the material transportation device 10, and is arranged to be able to drive the material 403 to move, so as to transfer the material 403 to the receiving station 402; the second transfer component 22 is arranged between the receiving station 402 and the material storage device 30, and is arranged to be able to rotate to a first state and a second state respectively. When the second transfer component 22 rotates to the first state, it is used to grab the material 403 located at the receiving station 402; when the second transfer component 22 rotates to the second state, it is used to transfer the material 403 to the material storage device 30.

[0036] The embodiment of the present application transfers the material 403 through the first transfer component 21 and the second transfer component 22 , which has high flexibility and does not require a complex structure, thereby helping to reduce the space occupied by the transfer device 20 .

[0037] In some embodiments, Figure 1 As shown, the first transfer component 21 includes a transfer part 211, a moving part 212 and a moving matching part 213. The transfer part 211 is connected to the moving part 212 and is configured to be able to approach or move away from the material transport device 10, so as to lift the material 403 in the material transport device 10 when approaching the material transport device 10; the moving part 212 is configured to be able to move along the moving matching part 213, so as to transfer the material 403 lifted by the transfer part 211 from the transfer station 401 to the receiving station 402.

[0038] In some embodiments, the second transfer component 22 includes a first rotating member 221 and a receiving member 222. The receiving member 222 is arranged above the material storage device 30 and forms a material receiving port 2221, a material transfer port 2222 and a material receiving channel 2223. The material receiving port 2221 is used to receive material 403, the material transfer port 2222 is used to transfer the received material 403 to the material 403 receiving container, and the material receiving channel 2223 is used to move the material 403 from the material receiving port 2221 to the material transfer port 2222; the first rotating member 221 is configured to be able to rotate to a first state and a second state respectively; wherein, when the first rotating member 221 rotates to the first state, it is used to grab the material 403 located at the receiving station 402, and when the first rotating member 221 rotates to the second state, the material 403 is transferred to the material receiving port 2221.

[0039] The embodiment of the present application configures the first rotating member 221 to be able to be in the first state and the second state, which helps to ensure that the first rotating member 221 smoothly transfers the material 403 from the transfer station 401 to the receiving station 402, thereby delivering the material 403 to the receiving member 222.

[0040] In some embodiments, the first rotating member 221 includes a first driving portion 2211, a first rotating portion 2212, a first connecting portion 2213 and a grabbing portion 2214; the first driving portion 2211 is connected to the first rotating portion 2212 and the grabbing portion 2214 respectively, and is used to drive the first rotating portion 2212 to rotate, and to drive the grabbing portion 2214 to move in multiple directions; the first rotating portion 2212 is connected to the grabbing portion 2214 through the first connecting portion 2213, and is used to drive the grabbing portion 2214 to rotate; the grabbing portion 2214 is used to grab the material 403 when rotating to the first state, and to place the material 403 in the material receiving channel 2223 through the material receiving port 2221 when rotating to the second state.

[0041] The embodiment of the present application configures the first rotating member 221 to include a first driving portion 2211, a first rotating portion 2212, a first connecting portion 2213 and a grasping portion 2214, which is conducive to firmly grasping the material 403 and realizing flexible transportation of the material 403 while occupying less space.

[0042] In some embodiments, the first rotating member 221 further includes a guide portion 2216 for installing the gripping portion 2214 and providing a movement space for the gripping portion 2214 .

[0043] In such an embodiment, the gripping portion 2214 is disposed within the guide portion 2216 , and the gripping portion 2214 is capable of moving along the axial direction of the guide portion 2216 .

[0044] In some embodiments, the first rotating member 221 further includes a display portion 2215 for displaying the rotation angle of the first rotating portion 2212 , thereby facilitating determination of the position of the grabbing portion 2214 .

[0045] The embodiment of the present application displays the rotation angle of the first rotating portion 2212 through the display portion 2215 , which is helpful for monitoring the position of the first rotating portion 2212 to ensure that the first rotating portion 2212 smoothly drives the grasping portion 2214 to rotate above the receiving station 402 .

[0046] In some embodiments, Figure 1 As shown, the material transport device 10 includes a transport member 11 and a receiving assembly 12 . The transport member 11 is configured to be movable. The receiving assembly 12 is disposed on the transport member 11 to receive the material 403 and drive the material 403 to move along with the transport member 11 .

[0047] The embodiment of the present application utilizes the containing assembly 12 to contain the material 403, and then sets the containing assembly 12 on the transport member 11 to achieve the purpose of driving the material 403 to move, thereby facilitating the continuous loading process.

[0048] In some embodiments, Figure 4 is a schematic diagram of the structure of the transfer device and the containing assembly according to an embodiment of the present application, such as Figure 4 As shown, the containing component 12 includes a containing member 121 and a second rotating member 122. The containing member 121 forms a plurality of material containing slots for containing the material 403. The second rotating member 122 is disposed outside the containing member 121 for driving the containing member 121 to rotate so that each material containing slot is opposite to the transfer device 20 respectively.

[0049] The embodiment of the present application configures the container 121 to include a plurality of material containing slots, which facilitates the stable placement of the material 403 in the container 121, thereby facilitating the transfer device 20 to smoothly grab the material 403.

[0050] In some embodiments, a plurality of material holding slots are arranged in a predetermined manner, and the material 403 can be fixed in the material holding slot after being loaded into the material holding slot.

[0051] In some embodiments, the containing assembly 12 includes a containing body and a cover. The containing body is disposed on the transport member 11 for containing the material 403. The cover is used to seal the containing body, and the cover is configured to be opened or closed so as to load the material 403 into the containing body.

[0052] In some embodiments, the cover is a shutter.

[0053] In some embodiments, Figure 5is a schematic diagram of the structure of a material storage device 30 according to an embodiment of the present application. Figure 5 As shown, the material storage device 30 includes a material storage container 31 and a heating component 32. The material storage container 31 forms a receiving cavity 312 for storing materials; the heating component 32 is arranged outside the material storage container 31 for heating and keeping warm the material 403 in the receiving cavity 312.

[0054] The embodiment of the present application utilizes a material storage container 31 to store material 403 to ensure the safe transportation of material 403 and avoid large-scale release of radioactive substances. The material storage container 31 is heated by a heating component 32 so as to heat the material 403 to a predetermined temperature to meet the requirements of loading into the reactor.

[0055] In some embodiments, the material storage container 31 forms a material entrance and exit 311, the size of the material entrance and exit 311 matches the size of the material 403, and the material entrance and exit 311 is configured to correspond to the material transfer port 2222 of the receiving piece 222, so that the material 403 in the receiving piece 222 can enter the material storage container 31 via the material transfer port 2222 and the material entrance and exit 311.

[0056] In some embodiments, the material storage device 30 may further include a sealing member disposed at the material transfer port 2222 and the material inlet and outlet 311 to ensure the sealing of the accommodating cavity 312 of the material storage container 31 during the loading process.

[0057] In such an embodiment, the seal is a gate.

[0058] In some embodiments, the heating component 32 includes a heating element 321 and a heat preservation element 322. The heating element 321 is arranged outside the material storage container 31 for heating the material 403 in the accommodating cavity 312. The heat preservation element 322 is arranged outside the heating element 321 for keeping the material 403 in the accommodating cavity 312 warm.

[0059] In some embodiments, the material storage device 30 also includes a third rotating member 33, which is used to drive the material storage container 31 to rotate, wherein the third rotating member 33 includes a second driving part 331, a second connecting part 332 and a second rotating part 333, the second driving part 331 is connected to the second rotating part 333 through the second connecting part 332, and is used to drive the second rotating part 333 to rotate; the second rotating part 333 is arranged in the accommodating cavity 312, and is used to drive the material storage container 31 to rotate during the rotation process, so that the material 403 enters the accommodating cavity 312.

[0060] The embodiment of the present application configures the third rotating member 33 to include a second driving portion 331, a second connecting portion 332 and a second rotating portion 333, which facilitates driving the second rotating portion 333 to rotate through the second driving portion 331, thereby rotating the material storage container 31, so as to rotate the material 403 at any position in the material storage container 31 to a specified position for the transfer device 20 to grab the material 403.

[0061] The embodiment of the present application also provides a method for continuously charging a reactor. Figure 6 is a flow chart of a method for continuously charging a reactor (hereinafter referred to as the continuous charging method) according to an embodiment of the present application, such as Figure 6 As shown, the continuous charging method includes the following steps S1 to S5.

[0062] S1. Perform gas replacement on the material transport device 10 for containing the material 403, so that the gas atmosphere in the material transport device 10 is an inert atmosphere.

[0063] S2. Load the material 403 into the material transport device 10, and use the material transport device 10 to move the material to the transfer station 401.

[0064] S3. Use the transfer device 20 to transfer the material 403 in the material transportation device 10 located at the transfer station 401 to the receiving station 402.

[0065] S4. Use the transfer device 20 to transfer the material 403 located at the receiving station 402 to the material storage device 30.

[0066] S5. Use the material storage device 30 to receive the material 403 transferred by the transfer device 20 to load the material 403 into the reactor.

[0067] The embodiment of the present application replaces the gas in the material transport device 10 so that the gas atmosphere in the material transport device 10 is an inert atmosphere, which is beneficial to avoid the reaction between the material and oxygen, and then uses the material transport device 10 to transport the preheated material 403 to the transfer station 401, and uses the transfer device 20 to transfer the material 403 to the material storage device 30. In this way, the continuous transfer of the material 403 can be achieved, and the heating time of the material 403 can be reduced. There is no need to first load all the required materials 403 into the material storage container 31 and then heat it in the traditional material change process. At the same time, the transfer operation is relatively simple, which is beneficial to reducing the material change time and the space occupied by the continuous loading system, and the material change efficiency is relatively high.

[0068] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0069] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A system for continuously charging a reactor, characterized in that: It includes: Material transport device, transfer device and material storage device, wherein: The material transport device is used to accommodate the preheated material and is configured to move the material so that the material is located at the transfer station; The transfer device is used to transfer the material in the material transport device located at the transfer station to the receiving station, and to transfer the material located at the receiving station to the material storage device; The material storage device is arranged close to the receiving station, and is used for receiving the material transferred by the transfer device and heating the material so as to load the material into the reactor.

2. The system according to claim 1, characterized in that The transfer device comprises a first transfer component and a second transfer component. The first transfer component is disposed above the transfer station, and is used to lift the material in the material transport device, and is configured to drive the material to move, so as to transfer the material to the receiving station; The second transfer assembly is disposed between the receiving station and the material storage device, and is configured to be able to rotate to a first state and a second state respectively. When the second transfer component rotates to the first state, it is used to grab the material located at the receiving station; When the second transfer component rotates to the second state, it is used to transfer the material to the material storage device.

3. The system according to claim 2, characterized in that The second transfer component includes a first rotating member and a receiving member, The receiving member is arranged above the material storage device and forms a material receiving port, a material transfer port and a material receiving channel. The material receiving port is used to receive the material, the material transfer port is used to transfer the received material to the material receiving container, and the material receiving channel is used to move the material from the material receiving port to the material transfer port. The first rotating member is configured to be able to rotate to the first state and the second state respectively; Wherein, when the first rotating member rotates to the first state, it is used to grab the material located at the receiving station, and when the first rotating member rotates to the second state, the material is transferred to the material receiving port.

4. The system according to claim 3, characterized in that The first rotating member includes a first driving portion, a first rotating portion, a first connecting portion and a grasping portion; The first driving part is connected to the first rotating part and the grabbing part respectively, and is used to drive the first rotating part to rotate, and to drive the grabbing part to move in multiple directions; The first rotating part is connected to the grabbing part through the first connecting part, and is used to drive the grabbing part to rotate; The grabbing portion is used to grab the material when rotating to the first state, and to place the material into the material receiving channel through the material receiving port when rotating to the second state.

5. The system according to claim 4, characterized in that The first rotating member further includes a display portion for displaying a rotation angle of the first rotating portion, thereby facilitating determination of a position of the grabbing portion.

6. The system according to claim 1, characterized in that The material transport device comprises a transport member and a containing component. The transport member is configured to be movable; The containing assembly is arranged on the transport member, and is used for containing the material and driving the material to move along with the transport member.

7. The system according to claim 6, characterized in that The receiving assembly comprises a receiving member and a second rotating member. The containing member forms a plurality of material containing slots for containing the material; The second rotating member is arranged outside the containing member, and is used for driving the containing member to rotate so that each of the material containing slots is respectively opposite to the transfer device.

8. The system according to claim 3, characterized in that The material storage device comprises a material storage container and a heating component. The material storage container forms a containing cavity for storing the material; The heating component is arranged outside the material storage container, and is used for heating and keeping warm the material in the containing cavity.

9. The system according to claim 8, characterized in that The material storage device further comprises a third rotating member, and the third rotating member is used to drive the material storage container to rotate, wherein: The third rotating member includes a second driving portion, a second connecting portion and a second rotating portion. The second driving part is connected to the second rotating part through the second connecting part, and is used for driving the second rotating part to rotate; The second rotating part is disposed in the accommodating cavity, and is used for driving the material storage container to rotate during the rotation process, so that the material enters the accommodating cavity.

10. A method for continuously charging a reactor, characterized in that: It includes the following steps: S1. Performing gas replacement on a material transport device for containing materials so that the gas atmosphere in the material transport device is an inert atmosphere; S2, loading the material into the material transport device, and using the material transport device to move the material to a transfer station; S3, using a transfer device to transfer the material in the material transport device located at the transfer station to a receiving station; S4, using a transfer device to transfer the material located at the receiving station to a material storage device; S5. Utilize the material storage device to receive the material transferred by the transfer device, so as to load the material into the reactor.

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