WO2022206076A1 - Spent fuel storing and transporting container - Google Patents

Abstract

A spent fuel storing and transporting container, characterized by comprising a cylinder body (1), a hanging basket and a shielding cover, wherein the hanging basket is arranged inside the cylinder body (1); a storage sleeve (18) used for storing spent fuel is placed in the hanging basket; the hanging basket is provided with a heat conducting structure used for guiding heat of the storage sleeve (18); and the shielding cover is arranged at two ends of the cylinder body (1), and is used for sealing the cylinder body (1). The container has a good heat conducting performance.

Description

A spent fuel storage and transport container

The disclosure requires that the application date is April 2, 2021, the application number is CN202120677734.9, the name is "a spent fuel storage and transportation container using an integral hanging basket", and the application date is April 2, 2021, the application The priority of the Chinese patent application No. CN202110360233.2, entitled "A Spent Fuel Storage and Transport Container Using Modular Gondola".

technical field

The invention relates to the technical field of nuclear industry, in particular to a spent fuel storage and transportation container.

Background technique

The spent fuel assemblies of nuclear power plants need to be safe during transportation and storage. Under normal conditions and accident conditions, it is necessary to ensure that the spent fuel assemblies are contained inside the container, and the containment, shielding and subcritical functions of the container can be maintained and guaranteed. Therefore, in the design of the container, it is necessary to consider the selection of an appropriate container structure to ensure the safety of the spent fuel assemblies loaded in the container when it is impacted, dropped or burned.

In the prior art, the above-mentioned device for storing spent fuel assemblies that can achieve safe transportation has poor thermal conductivity, complicated manufacturing process, poor critical performance, and high cost.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a spent fuel storage and transportation container in view of the above deficiencies in the prior art, and the spent fuel storage and transportation container has good thermal conductivity.

In order to solve the above problems, the present invention adopts the following technical solutions:

A spent fuel storage and transportation container includes a cylinder, a hanging basket, and a shielding cover, the hanging basket is arranged inside the cylinder, a storage sleeve for storing spent fuel is placed in the hanging basket, and the hanging basket is The hanging basket is provided with a heat-conducting structure for deriving the heat of the storage sleeve, and the shielding covers are provided on both ends of the cylinder to seal the cylinder.

Preferably, the hanging basket includes a plurality of modules, the modules are arranged in parallel and spaced apart, and the modules are connected together by connecting rods, and the modules include a circular support ring and an annular side wall arranged on the support plate , the heat-conducting structure is arranged inside the module, and the heat-conducting structure is a grid structure composed of a plurality of heat transfer plates, wherein the grid structure consists of a heat transfer plate arranged horizontally and a heat transfer plate arranged vertically. In this way, the storage sleeves are a plurality of storage sleeves arranged in parallel with each other, and the storage sleeves are respectively penetrated in each cell of the grid mechanism.

Preferably, the horizontally arranged heat transfer plates and the vertically arranged heat transfer plates are both provided with sockets, and the two are formed by inserting and splicing.

Preferably, the module further includes a critical control structure.

Preferably, the critical control structure is a neutron absorber coated on the heat transfer plate. Preferably, the side wall is formed by splicing several aluminum blocks.

Preferably, the hanging basket includes a plurality of support plates and a plurality of heat-conducting plates, the plurality of the support plates and the plurality of the heat-conducting plates are arranged in parallel and spaced apart, and are connected in series by connecting rods.

Preferably, a plurality of first through holes are formed on the support plate, a plurality of second through holes are correspondingly formed on the heat conducting plate, and the storage sleeves are arranged in parallel with each other, and each storage sleeve is pierced in sequence. Provided in each of the first perforations and each of the second perforations, the storage sleeve is composed of a neutron absorber, and the neutron absorber is wrapped with a stainless steel layer.

Preferably, the shielding cover includes an upper-end shielding cover and a lower-end shielding cover, and the upper-end shielding cover and the lower-end shielding cover are respectively covered on both ends of the cylinder body.

Preferably, the upper shielding cover includes a first outer cover, a first inner cover and a first shielding plug that are stacked from outside to inside, the first shielding plug is in contact with the top of the hanging basket, and the lower end shields The plug includes a second outer cover, a second shielding plug and a second inner cover which are stacked from outside to inside, and the second inner cover is in contact with the bottom of the hanging basket.

Preferably, the spent fuel storage and transportation container further includes an air intake and drainage assembly, the air intake and drainage assembly includes a drainage pipe, an air intake hole and a drainage hole provided on the cylinder body, and the drainage pipe extends into the cylinder At the bottom of the body, quick joints are respectively installed on the air inlet hole and the drainage hole, and the drainage hole is connected with the drainage pipe.

Preferably, the spent fuel storage and transportation container further includes a limit block, and the limit block is installed inside the cylinder to prevent the gondola from rotating relative to the cylinder during transportation.

Preferably, a support ring is provided inside the upper end of the cylinder body, and the support ring is connected to the cylinder body to support the upper end shielding cover; the inner ring of the support ring is also provided with a lifting lug.

Preferably, the spent fuel storage and transportation container further comprises a grab ring, and the grab ring is arranged on the outer surface of the second outer cover and is used for pushing and pulling the cylinder in a horizontal direction.

The spent fuel storage and transportation container provided by the present invention has good thermal conductivity, and when the module includes a critical control structure, its critical performance is also good, which can effectively lead out the heat during the spent fuel storage and absorb the spent fuel during storage. The neutrons produced are stable in structure and easy to handle during storage and transportation.

The spent fuel storage and transportation container also has the characteristics of simple structure, convenient processing, cost saving and the like.

Description of drawings

1 is a schematic diagram of a spent fuel storage and transportation container in Embodiment 1 of the present invention;

Fig. 2 is the three-dimensional schematic diagram of the hanging basket in Embodiment 1 of the present invention;

3 is a side view of the hanging basket in Embodiment 1 of the present invention;

4 is a schematic diagram of the positional relationship of the storage sleeve, the neutron absorber, and the heat transfer plate in Embodiment 1 of the present invention;

5 is a top view of a single module in the gondola in Embodiment 1 of the present invention;

6 is a perspective view of a single module in the hanging basket in Embodiment 1 of the present invention;

7 is a top view of the grid mechanism inside a single module in the gondola according to Embodiment 1 of the present invention;

8 is a schematic perspective view of a grid mechanism inside a single module in the gondola according to Embodiment 1 of the present invention;

9 is a schematic structural diagram of a spent fuel storage and transportation container in Embodiment 3 of the present invention;

10 is a schematic structural diagram of a hanging basket in Embodiment 3 of the present invention;

11 is a schematic structural diagram of a support ring in Embodiment 3 of the present invention;

12 is a schematic structural diagram of an externally supported grab ring in Embodiment 3 of the present invention;

FIG. 13 is a schematic structural diagram of an inner buckle type grab ring in Embodiment 3 of the present invention.

In the figure: 1- cylinder, 2- connecting rod, 3- supporting plate, 4- side wall, 5- heat transfer plate, 6- neutron absorber, 7- socket, 8- first outer cover, 9- first An inner cover, 10-first shielding plug, 11-second outer cover, 12-second shielding plug, 13-second inner cover, 14-air intake and drainage assembly, 15-support ring, 16-lifting lug, 17 - grab ring, 18- storage sleeve, 19- support plate, 20- heat conduction plate, 21- nut, 22- spacer block, 23- positioning block, 24- top plate assembly, 25- bottom plate assembly.

Detailed ways

The technical solutions in the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of the present invention.

In the description of the present invention, it should be noted that the indication of orientation or positional relationship such as "up" is based on the orientation or positional relationship shown in the drawings, which is only for convenience and simplification of the description, and does not indicate or imply that The device or element must be provided with a specific orientation, constructed and operated in a specific orientation, so it should not be construed as a limitation of the present invention.

In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connection", "arrangement", "installation" and "fixation" should be understood in a broad sense, for example, a fixed connection may be a Removably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The invention provides a spent fuel storage and transportation container, comprising a cylinder, a hanging basket and a shielding cover, the hanging basket is arranged inside the cylinder, and a storage sleeve for storing spent fuel is placed in the hanging basket , the hanging basket is provided with a heat conduction structure for deriving the heat of the storage sleeve, and the shielding cover is provided at both ends of the cylinder to seal the cylinder.

Example 1

This embodiment discloses a spent fuel storage and transportation container, including a cylinder body 1, a hanging basket, and a shielding cover. The cylinder body 1 is a cylindrical container with openings at both ends and a cavity inside, and the hanging basket is arranged inside the cylinder body 1 , the storage sleeve 18 for storing spent fuel is placed in the gondola, the gondola is provided with a heat conduction structure for deriving the heat of the storage sleeve 18, and the shielding cover is provided at both ends of the cylinder 1 for sealing the cylinder body 1.

As shown in Figures 2 and 3, the hanging basket includes a plurality of modules, which are arranged in parallel and spaced apart, and the modules are connected together by connecting rods 2. The modules include a circular support ring 15 and a The annular side wall 4, the support ring 15 together with the side wall 4 constitute the frame structure of the gondola.

As shown in FIGS. 5 and 6 , the heat-conducting structure is arranged inside the module, and the heat-conducting structure is a grid structure composed of a plurality of heat transfer plates 5 . Wherein, the grid structure is formed by inserting the heat transfer plates 5 arranged horizontally and the heat transfer plates 5 vertically arranged, so that many cells for storing the storage sleeves 18 are formed inside each module. The sleeves 18 are arranged in parallel with each other, and the storage sleeves 18 are respectively penetrated in each cell of the grid mechanism.

In each module, a suitable gap is reserved between the grid structure composed of a plurality of heat transfer plates 5 and the side wall 4 of the support plate 3 to provide reserved space for thermal expansion and contraction of the heat transfer plates 5 , to prevent the damage of the hanging basket due to the too small gap between the heat transfer plate 5 and the side wall 4 .

As shown in Figures 7 and 8, the horizontally arranged heat transfer plate 5 and the vertically arranged heat transfer plate 5 are provided with sockets 7, and the two are formed by inserting and splicing through the sockets. Specifically, the sockets 7 of the horizontally arranged heat transfer plates 5 are opened in the upper part, the sockets 7 of the vertically arranged heat transfer plates 5 are opened in the lower part, and the vertically arranged heat transfer plates 5 are connected to the horizontal through the sockets 7 in the lower part. The sockets 7 on the provided heat transfer plates 5 are inserted and spliced into a grid mechanism, and two adjacent horizontally arranged heat transfer plates 5 and two adjacent vertically arranged heat transfer plates 5 enclose a unit cell, The size of the cell matches the size of the storage sleeve 18 .

In this embodiment, the module further includes a critical control structure.

As shown in FIG. 4 , the critical control structure is a neutron absorber 6 coated on the heat transfer plate 5 . The neutron absorber 6 is arranged on both sides of the heat transfer plate 5, and together with the heat transfer plate 5 constitutes a composite plate structure, the neutron absorber 6 of the composite plate plate 5 directly In contact with the storage sleeve 18, the heat transfer plate 5 can effectively absorb the neutrons generated by the spent fuel and conduct the heat generated by the spent fuel to protect the safety of the entire storage container.

In this embodiment, the side wall 4 is formed by splicing several aluminum blocks.

As shown in FIG. 1 , the shielding cover includes an upper shielding cover and a lower shielding cover. The upper shielding cover and the lower shielding cover are respectively covered on both ends of the cylinder 1 so as to seal both ends of the cylinder 1 .

Specifically, the upper shielding cover includes a first outer cover 8, a first inner cover 9 and a first shielding plug 10 stacked from outside to inside. The first shielding plug 10 is in contact with the top of the gondola, and the lower shielding A second outer cover 11 , a second shielding plug 12 and a second inner cover 13 are stacked inside, and the second inner cover 13 is in contact with the bottom of the gondola.

In this embodiment, the spent fuel storage and transportation container further includes an air intake and drainage assembly 14 . The air intake and drainage assembly 14 includes a drainage pipe, an air intake hole and a drainage hole provided on the cylinder body 1 , and the drainage pipe extends into the cylinder body 1 . At the bottom of the cylinder, quick joints are installed on the air intake hole and the drainage hole respectively, and the drainage hole is connected with the drainage pipe.

Optionally, the spent fuel storage and transportation container further includes a limit block, and the limit block is installed inside the cylinder body 1 to clamp the gondola to prevent the gondola from rotating relative to the cylinder body 1 during transportation.

As shown in FIG. 11 , a support ring 15 is provided inside the upper end of the cylinder body 1 , and the support ring 15 is connected to the cylinder body 1 to support the upper end shielding cover; the inner ring of the support ring 15 is also provided with a lifting lug 16 for Hoisting spent fuel storage and transport containers.

In this embodiment, the spent fuel storage and transportation container further includes a grab ring 17 , and the grab ring 17 is disposed on the outer surface of the second outer cover 11 for pushing and pulling the cylinder 1 in a horizontal direction. Specifically, the grab ring 17 can take two forms, one is the shape shown in FIG. 12 , which is used in conjunction with the external support gripper, and the other is the shape shown in FIG. 13 , which is used for For use with snap-in grippers to pull spent fuel storage and transport containers horizontally.

The spent fuel storage and transportation container in this embodiment has good thermal conductivity and neutron absorption performance, and can be effectively used as a spent fuel storage and transportation container. Danger of a critical state.

Example 2

This embodiment discloses a spent fuel storage and transportation container using a modular hanging basket, which includes a hanging basket arranged in a closed cylinder 1 (the material of the cylinder 1 is 304 stainless steel plate), and the upper end of the cylinder 1 is made of 304 stainless steel. The upper end shielding cover is sealed, the lower end of the cylinder 1 is sealed with the lower end shielding cover, the storage sleeve 18 for storing spent fuel assemblies is placed inside the gondola, the gondola is composed of multiple modules, and the modules are provided with critical control structures and functions. A thermally conductive structure for dissipating heat from the storage sleeve 18 (the heat comes from the spent fuel assembly that the vessel is loaded with).

The gondola is composed of a plurality of modules stacked in series, connected in series by connecting rods 2. Each module includes a circular support plate 3 and an annular side wall 4 surrounding the side of the support plate 3. The side wall 4 is made of several pieces of aluminum. The heat transfer structure is a grid structure heat transfer plate 5 arranged on the support plate 3, and the two ends of the heat transfer plate 5 and the side wall 4 are reserved. There is a gap; the critical control structure is the neutron absorber 6 arranged on both sides of the heat transfer plate 5, and the sleeve 18 passes through the grid formed by the heat transfer plate 5 and the neutron absorber 6 to realize the storage sleeve 18. The criticality control and heat export of the gondola and the neutron absorber 6 are used to absorb neutrons to ensure the criticality safety of spent fuel assemblies during underwater loading, unloading, drying, sealing, transfer and storage operations.

As shown in FIGS. 7 and 8 , the heat transfer plate 5 and the neutron absorber 6 are provided with sockets 7 , and the heat transfer plate 5 and the neutron absorber 6 are inserted into a grid structure through the sockets 7 .

As shown in FIG. 4 , there are several storage sleeves 18 , which are arranged parallel to each other, and one storage sleeve 18 passes through each grid formed by the heat transfer plate 5 and the neutron absorber 6 .

The upper and lower ends of the gondola are set as open structures, and the axial load of the storage sleeve 18 for storing the spent fuel assembly is directly applied to the upper and lower end shielding covers of the container, and does not act on the gondola; spent fuel assemblies The lateral support is provided by the storage sleeve 18, which is laterally supported by the support plate 3, the heat transfer plate 5 and the cylinder 1 (ie the container shell).

The upper shielding cover includes a first outer cover 8 (material is 304 stainless steel plate), a first inner cover 9 (material is 304 stainless steel plate) and a first shielding plug 10 (material is 304 stainless steel forging), which are stacked in sequence. There is a gap between the lower surface of the plug 10 and the top of the hanging basket; the lower end shielding cover includes a second outer cover 11 (material is 304 stainless steel plate), a second shielding plug 12 (material is 304 stainless steel forgings) and The second inner cover 13 (made of 304 stainless steel plate) is in contact with the bottom of the hanging basket.

It also includes an air intake and drainage assembly 14 arranged on the inner side of the upper end of the cylinder body 1, which is used for the drainage and inflation operation in the cylinder body 1, and plays a shielding role at the same time; Inflatable operation; normally closed quick joints are installed on the air inlet and drain holes, the lower end of the drain hole is connected to a drain pipe, and the drain pipe extends into the bottom of the cylinder body 1 .

A limit block is welded on the inner side of the cylinder body 1 to prevent the gondola from rotating relative to the cylinder body 1 during horizontal transfer or transportation.

A support ring 15 is welded inside the upper end of the cylinder body 1. The support ring 15 is connected to the cylinder body 1 to support the upper end shielding cover; On the cylinder body 1, a part is welded with the support ring 15), which is used for hoisting the container; a grab ring 17 is welded on the outer surface of the second outer cover 11 of the lower end shielding cover, which is used for the horizontal direction of the cylinder body 1. Push and pull, The structure of the gripping ring 17 can be applied to an externally supported gripper.

The spent fuel storage and transportation container in this embodiment has the advantages of low cost, simple process, firm structure, no maintenance, and good thermal conductivity. The arrangement of the heat transfer plate and the neutron absorber can more effectively dissipate the heat of the spent fuel assembly inside the container, reducing the risk of the spent fuel assembly appearing in a critical state.

Example 3

As shown in FIG. 9 , this embodiment discloses a spent fuel storage and transportation container, which includes a cylinder body 1, a hanging basket, and a shielding cover. The hanging basket is arranged inside the cylinder body 1, and the cylinder body 1 is a cylindrical container with open ends. The storage sleeve 18 for storing spent fuel is placed in the gondola. The gondola is provided with a heat-conducting structure for deriving the heat of the storage sleeve 18. in the sealed cylinder 1.

As shown in FIG. 10 , the gondola includes a plurality of support plates 19 and a plurality of heat-conducting plates 20 , the plurality of support plates 19 and the plurality of heat-conducting plates 20 are arranged in parallel and spaced apart, and are connected in series by the connecting rods 2 . The top of the connecting rod 2 is fixed with the nut 21 through the top assembly, and the bottom of the connecting rod 2 is fixed through the bottom assembly and the spacer 22 .

In this embodiment, the supporting plate 19 and the heat conducting plate 20 are spaced apart by a positioning block 23 , and the positioning block 23 is a ring-shaped structure, and a circular hole in the middle thereof is sleeved on the connecting rod 2 . Specifically, the heat-conducting plate 20 in this embodiment only needs to be arranged at a position corresponding to the middle section of the cylinder 1, because this arrangement can already satisfy the heat-conducting heat during spent fuel storage. Of course, the heat-conducting plate 20 here can also be arranged To be distributed over the length corresponding to the entire cylinder 1, or only to be arranged on two side segments corresponding to the cylinder 1 (the cylinder includes a middle segment and two side segments located on both sides of the middle segment).

In this embodiment, the support plate 19 is provided with a plurality of first through holes, the heat conduction plate 20 is provided with a corresponding number of second through holes, the storage sleeves 18 are arranged in parallel with each other, and each storage sleeve 18 is arranged in sequence. Passing through each of the first through holes and each of the second through holes, the storage sleeve 18 is composed of a neutron absorber, and the neutron absorber is wrapped with a stainless steel layer. During the storage process of spent fuel, the generated neutrons are absorbed by the neutron absorber, and the generated heat is exported to the cylinder body 1 through the stainless steel layer.

In this embodiment, the support plate 19 and the heat-conducting plate 20 are stacked and spaced to effectively dissipate the heat generated when the spent fuel is stored. The storage sleeve 18 is made of a neutron absorber material, which can effectively absorb the neutrons generated by the spent fuel. , with better security.

Other structures in this embodiment are the same as those in Embodiment 1, and are not repeated here.

Example 4

This embodiment discloses a spent fuel storage and transportation container using an integral hanging basket, which includes a hanging basket arranged in a closed cylindrical body 1 (made of 304 stainless steel plate), and an upper end shielding cover is used for the upper end of the cylindrical body 1 The lower end of the cylinder body 1 is sealed with a lower end shielding cover. A storage sleeve 18 for storing spent fuel assemblies is placed inside the gondola.

The hanging basket is composed of a stacked support plate 19 and a heat-conducting plate 20. The support plate 19 and the heat-conducting plate 20 are arranged in parallel and spaced apart, and are connected in series by the connecting rod 2. The upper end of the connecting rod 2 is fixed by the top plate assembly 24 and the nut 21. The lower end of the rod 2 is fixed by the base plate assembly 25 and the spacer 22 .

The support plate 19 and the heat conduction plate 20 are spaced apart by the positioning blocks 23 .

There are several storage sleeves 18 , which are arranged parallel to each other. The storage sleeves 18 pass through the support plate 19 and the heat-conducting plate 20 ;

The barrel of the storage sleeve 18 is composed of a neutron absorber, and the outer surface of the neutron absorber is covered with a stainless steel layer. During the underwater charging, unloading, drying, sealing, transport and storage operations, the geometric Structures and neutron absorbers are used to absorb neutrons to ensure criticality safety of spent fuel assemblies.

The upper and lower ends of the gondola are set as open structures, and the axial load of the storage sleeve 18 for storing the spent fuel assembly is directly applied to the upper and lower end shielding covers of the container, and does not act on the gondola; spent fuel assemblies Lateral support is provided by a storage sleeve 18, which is laterally supported by a support plate 19, a thermally conductive plate 20, and the barrel 1 (ie, the vessel shell).

The upper shielding cover includes a first outer cover 8 (material is 304 stainless steel plate), a first inner cover 9 (material is 304 stainless steel plate) and a first shielding plug 10 (material is 304 stainless steel forging), which are stacked in sequence. The plug 10 is in contact with the top of the hanging basket; the lower end shielding cover includes a second outer cover 11 (material is 304 stainless steel plate), a second shielding plug 12 (material is 304 stainless steel forging) and a second inner cover 13 ( The material is 304 stainless steel plate), and the second inner cover 13 is in contact with the bottom of the hanging basket.

It also includes an air intake and drainage assembly 14 arranged on the inner side of the upper end of the cylinder body 1, which is used for the drainage and inflation operation in the cylinder body 1, and plays a shielding role at the same time; Inflatable operation; normally closed quick joints are installed on the air inlet and drain holes, the lower end of the drain hole is connected to a drain pipe, and the drain pipe extends into the bottom of the cylinder body 1 .

A limit block is welded on the inner side of the cylinder body 1 to prevent the gondola from rotating relative to the cylinder body 1 during horizontal transfer or transportation.

A support ring 15 is arranged inside the upper end of the cylinder body 1, and the support ring 15 is connected to the cylinder body 1 to support the upper end shielding cover; the supporting ring 15 is provided with a lifting lug 16 for hoisting the container; A grab ring 17 is welded on the outer surface of the cover 11 for pushing and pulling the cylinder 1 in the horizontal direction.

The spent fuel storage and transportation container in this embodiment has the advantages of low cost, simple process, firm structure, no maintenance, and good thermal conductivity. The arrangement of the heat transfer plate and the neutron absorption plate can more effectively dissipate the heat of the spent fuel assembly inside the container, thereby reducing the danger of the spent fuel assembly appearing in a critical state.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, without departing from the spirit and essence of the present invention, various modifications and improvements can be made, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (14)

1. A spent fuel storage and transportation container, characterized in that it comprises a cylinder (1), a hanging basket, and a shielding cover,

   The gondola is arranged inside the cylinder (1), a storage sleeve (18) for storing spent fuel is placed in the gondola, and the gondola is provided with a storage sleeve (18) for exporting the spent fuel ) heat conduction structure,

   The shielding covers are provided at both ends of the cylinder body (1) and are used to seal the cylinder body (1).
2. The spent fuel storage and transportation container according to claim 1, wherein the gondola comprises a plurality of modules, the modules are arranged in parallel and spaced apart, and the modules are connected together by connecting rods (2). The module comprises a circular support ring (15) and an annular side wall (4) arranged on the support plate (3),

   The heat-conducting structure is arranged inside the module, and the heat-conducting structure is a grid structure composed of a plurality of heat transfer plates (5), wherein the grid structure is composed of a horizontally arranged heat transfer plate (5) and a vertically arranged heat transfer plate (5). The heat transfer plates (5) are inserted and formed, the storage sleeves (18) are a plurality of mutually parallel arranged, and the plurality of storage sleeves (18) are respectively penetrated in each cell of the grid mechanism.
3. The spent fuel storage and transportation container according to claim 2, characterized in that the horizontally arranged heat transfer plate (5) and the vertically arranged heat transfer plate (5) are provided with sockets (7), and two It is formed by splicing and splicing.
4. The spent fuel storage and transport container of claim 2, wherein the module further includes a criticality control structure.
5. The spent fuel storage and transportation container according to claim 4, wherein the critical control structure is a neutron absorber (6) wrapped on the heat transfer plate (5).
6. The spent fuel storage and transportation container according to claim 2, characterized in that, the side wall (4) is formed by splicing several aluminum blocks.
7. The spent fuel storage and transportation container according to claim 1, wherein the gondola comprises a plurality of support plates (19) and a plurality of heat conduction plates (20), and the plurality of the support plates (19) are connected with the plurality of support plates (19). The heat conducting plates (20) are arranged in parallel and spaced apart, and are connected in series by connecting rods (2).
8. The spent fuel storage and transportation container according to claim 7, characterized in that, the support plate (19) is provided with a plurality of first perforations, and the heat conduction plate (20) is provided with a corresponding number of second perforations , the storage sleeves (18) are a number of parallel sets, and each storage sleeve (18) is sequentially drilled through each first through hole and each second through hole,

   The storage sleeve (18) is composed of a neutron absorber, and the neutron absorber is wrapped with a stainless steel layer.
9. The spent fuel storage and transportation container according to any one of claims 1-8, wherein the shielding cover comprises an upper end shielding cover and a lower end shielding cover, and the upper end shielding cover and the lower end shielding cover are respectively covered with on both ends of the cylinder (1).
10. The spent fuel storage and transport container of claim 9, wherein:

    The upper end shielding cover comprises a first outer cover (8), a first inner cover (9) and a first shielding plug (10) stacked from outside to inside, the first shielding plug (10) and the hanging basket The top of the shielding plugs are in contact with each other, and the lower shielding plug includes a second outer cover (11), a second shielding plug (12) and a second inner cover (13) stacked from outside to inside. The second inner cover (13) in contact with the bottom of the gondola.
11. The spent fuel storage and transportation container according to any one of claims 1 to 8, characterized in that it further comprises an air intake and drainage assembly (14), wherein the air intake and drainage assembly (14) includes a drainage pipe, which is arranged on the cylinder body. (1) The air inlet and drain holes on the

    The drain pipe extends into the bottom of the cylinder (1), a quick connector is respectively installed on the air inlet hole and the drain hole, and the drain hole is connected to the drain pipe.
12. The spent fuel storage and transportation container according to any one of claims 1 to 8, characterized in that it further comprises a limit block, and the limit block is installed inside the cylinder (1) to prevent during transportation Rotation of the hanging basket relative to the cylinder (1).
13. The spent fuel storage and transportation container according to any one of claims 1-8, characterized in that a support ring (15) is provided inside the upper end of the cylinder (1), and the support ring (15) is connected to the The cylinder body (1) is used for supporting the upper end shielding cover; the inner ring of the support ring (15) is also provided with a lifting lug (16).
14. The spent fuel storage and transportation container according to any one of claims 1-8, characterized in that it further comprises a grab ring (17), and the grab ring (17) is arranged on the second outer cover (11). ) for pushing and pulling the barrel (1) horizontally.

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