CN111540494A - Dedicated operation platform equipment suitable for spent fuel dry method storage - Google Patents

Abstract

The invention discloses a special operating platform device suitable for spent fuel dry storage, which comprises an operating platform bottom support, wherein the upper surface of the operating platform bottom support is fixedly connected with a first layer of operating platform, the upper surface of the first layer of operating platform is fixedly connected with a support frame, the side surface of the support frame is fixedly connected with a second layer of operating platform, and container placing holes are formed in the upper surfaces of the first layer of operating platform, the second layer of operating platform and the third layer of operating platform. This be applicable to dedicated operation platform equipment of spent fuel dry method storage, through setting up first layer operation platform, second floor operation platform and third layer operation platform, make things convenient for the staff to carry out the layering operation, through setting up the crescent moon board, make things convenient for the transportation of container to make whole operation platform equipment have and carry out drainage, vacuum drying, helium backfill a series of operations to dry-type shielding container and can accomplish the effect conveniently, safely.

Description

A special operating platform equipment suitable for dry storage of spent fuel

technical field

The invention relates to the technical field of mechanical design, in particular to a special operating platform device suitable for dry storage of spent fuel.

Background technique

In the early stage of nuclear power construction, a storage pool for storing spent fuel was built. Due to the limitation of the storage capacity of the spent fuel pool, with the increase of the operating life of the unit, the number of spent fuel assemblies produced increased year by year, and the conventional storage can no longer meet the requirements of China's nuclear power industry. Rapid development. As the domestic nuclear power industry gradually introduces, digests, absorbs and promotes the dry storage technology of spent fuel. During the implementation of the dry storage process, a series of operations such as drainage, vacuum drying, and helium gas backfilling need to be performed on the dry shielded container that has just been loaded with spent fuel.

Due to the low radiation in the water, all the fuel loading is done underwater, but the drainage can only be done outside the pool and the dry shielding container is too large to be fixed, so in order to ensure that the dry shielding container is drained and vacuumed A series of operations such as drying and helium gas backfilling can be completed conveniently and safely. The present invention provides a special operation platform device suitable for dry storage of spent fuel.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a special operation platform device suitable for dry storage of spent fuel, so as to solve the problems raised in the above background art.

In order to achieve the above purpose, the present invention provides the following technical solution: a special operation platform equipment suitable for dry storage of spent fuel, comprising a bottom support of the operation platform, and the upper surface of the bottom support of the operation platform is fixedly connected with a first layer A work platform, a support frame is fixedly connected to the upper surface of the first layer of work platform, a second layer of work platform is fixedly connected to the side of the support frame, and a third layer of work platform is fixedly connected to the top of the support frame. The upper surfaces of the first-layer working platform, the second-layer working platform and the third-layer working platform are all provided with container placement holes, and containers are placed inside the rotating container placement holes. The side surfaces of the first-layer working platform and the third-layer working platform are all slidably connected with a crescent plate that is convenient for container transport and easy to disassemble.

Preferably, the number of the support frames is four, and the four support frames are arranged in a rectangular array at the four corners of the upper surface of the first-layer work platform.

Preferably, the opposite surfaces of the four support brackets are fixedly connected with crossed fixing brackets, the number of the fixing brackets is eight, and every four is a group, and a group of the fixing brackets is arranged on the first floor for operation. Between the platform and the second-layer working platform, another group of the fixing brackets is arranged between the second-layer working platform and the third-layer working platform.

Preferably, the side of the support frame is fixedly connected with a ladder for people to get on and off the platform, and the side of the ladder is provided with a handrail.

Preferably, a plurality of operation platform fences are fixedly connected to the upper surface of the third-layer operation platform, and the plurality of operation platform fences are arranged in a mouth-shaped array and are equidistantly arranged on the upper surface of the third-layer operation platform. The upper surface of the platform fence is fixedly connected with a fixed cross bar for enhancing the stability of the platform fence.

Preferably, the number of the bottom supports of the operation platform is four, and the four bottom supports of the operation platform are arranged in a rectangular array at the four corners of the lower surface of the first-layer work platform.

beneficial effect

The invention provides a special operation platform device suitable for dry storage of spent fuel, which has the following beneficial effects:

1. This operation platform equipment is suitable for the dry storage of spent fuel. By setting the first-layer operation platform, the second-layer operation platform and the third-layer operation platform, it is convenient for the staff to carry out layered operations. The transfer of the container, so that the entire operation platform equipment can perform a series of operations such as drainage, vacuum drying, and helium backfilling of the dry shielding container to be completed conveniently and safely.

2. This operating platform equipment is suitable for dry storage of spent fuel. By setting up a ladder, it is convenient for the staff to get on and off the working platform, and by setting the operating platform fence, it can prevent the staff from falling.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the schematic diagram of the front sectional structure of the present invention;

FIG. 3 is a schematic top view of the structure of the present invention.

In the picture: 1. The bottom support of the operating platform, 2. The first-layer working platform, 3. The support frame, 4. The second-layer working platform, 5. The third-layer working platform, 6. The container, 7. The crescent plate, 8. The fixed bracket, 9. The ladder, 10 Operate the platform fence.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but 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 protection scope of the present invention.

1-3, the present invention provides a technical solution: a special operation platform equipment suitable for dry storage of spent fuel, including a bottom support 1 of the operation platform, and the upper surface of the bottom support 1 of the operation platform is fixedly connected with a The first layer of the work platform 2 has four bottom supports 1 of the operation platform, and the four bottom supports 1 of the operation platform are arranged in a rectangular array at the four corners of the lower surface of the first layer of the work platform 2 .

The upper surface of the first-layer working platform 2 is fixedly connected with a support frame 3, the number of the support frame 3 is four, and the four support frames 3 are arranged in a rectangular array at the four corners of the upper surface of the first-layer working platform 2, A ladder 9 is fixedly connected to the side of the utility model to facilitate personnel to get up and down the platform. The side of the ladder 9 is provided with a handrail.

The side of the support frame 3 is fixedly connected with the second-layer working platform 4, the top of the support frame 3 is fixedly connected with the third-layer working platform 5, and the opposite surfaces of the four support frames 3 are fixedly connected with crossed fixed brackets 8. The fixed brackets The number of 8 is eight, each of which is a group of four. One set of fixed brackets 8 is arranged between the first-layer work platform 2 and the second-layer work platform 4, and the other set of fixed brackets 8 is set on the second layer of the work platform. 4 and the third floor work platform 5.

The upper surfaces of the first-layer working platform 2, the second-layer working platform 4 and the third-layer working platform 5 are all provided with container placement holes, and a container 6 is placed inside the rotating container placement hole. The first-layer working platform 2, The side surfaces of the second-layer working platform 4 and the third-layer working platform 5 are slidably connected with a crescent plate 7 that facilitates the transport of the container 6 and facilitates disassembly. By setting the first-layer working platform 2, the second-layer working platform 4 and the third-layer working platform The operation platform 5 is convenient for the staff to perform layered operations, and the crescent plate 7 is provided to facilitate the transportation of the container 6, so that the entire operation platform equipment can perform a series of operations such as drainage, vacuum drying, and helium gas backfilling for the dry shielded container. Easy and safe to complete the effect.

A number of operation platform fences 10 are fixedly connected to the upper surface of the third-layer operation platform 5, and the plurality of operation platform fences 10 are arranged in a mouth-shaped array and are equidistantly arranged on the upper surface of the third-layer operation platform 5. Several platform fences The upper surface of the platform fence 10 is fixedly connected with a fixed cross bar for enhancing the stability of the platform fence 10 . By setting the operation platform fence 10 , the phenomenon of falling of the staff can be prevented.

Working principle: When the operation platform needs to be used to operate the container, the container 6 is first transported to the container placement hole, and the container 6 is fixed by the crescent plate 7. A series of related operations are performed on the container 6 on the third-layer working platform 5. When the container 6 needs to be transported, the crescent plate 7 is lifted to a safe position by using the ring crane in the workshop, and the container 6 can be transported, so that the entire operation can be carried out. The platform equipment has a series of operations such as drainage, vacuum drying, and helium backfilling of dry shielding containers, which can be conveniently and safely completed.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a dedicated operation platform equipment suitable for spent fuel dry method storage, includes operation platform bottom support (1), its characterized in that: the upper surface fixedly connected with first layer operation platform (2) of operation platform bottom support (1), the upper surface fixedly connected with support frame (3) of first layer operation platform (2), side fixedly connected with second floor operation platform (4) of support frame (3), the top fixedly connected with third layer operation platform (5) of support frame (3), the container has all been seted up to the upper surface of first layer operation platform (2), second floor operation platform (4) and third layer operation platform (5) and has been placed the hole, and should rotate the inside that the hole was placed to the container and placed container (6), the equal sliding connection in side of first layer operation platform (2), second floor operation platform (4) and third layer operation platform (5) has crescent moon board (7) that make things convenient for container (6) to transport and conveniently dismantle.

2. The special operation platform device for the spent fuel dry storage according to claim 1, wherein: the number of the support frames (3) is four, and the support frames (3) are arranged at four corners of the upper surface of the first layer of the operation platform (2) in a rectangular array mode.

3. The special operation platform device for the spent fuel dry storage according to claim 1, wherein: four the equal fixedly connected with criss-cross fixed bolster (8) of opposite face of support frame (3), the quantity of fixed bolster (8) is eight, and every four are a set of, a set of fixed bolster (8) set up between first layer operation platform (2) and second floor operation platform (4), another group fixed bolster (8) set up between second floor operation platform (4) and third layer operation platform (5).

4. The special operation platform device for the spent fuel dry storage according to claim 1, wherein: the side fixedly connected with of support frame (3) makes things convenient for personnel to go up and down cat ladder (9) for the platform, the side of cat ladder (9) is provided with the handrail.

5. The special operation platform device for the spent fuel dry storage according to claim 1, wherein: the last fixed surface of third layer operation platform (5) is connected with a plurality of operation platform rail (10), and a plurality of operation platform rail (10) are mouthful style of calligraphy array and set up the upper surface that the equidistance set up at third layer operation platform (5), a plurality of the last fixed surface of platform rail (10) is connected with the fixed horizontal pole that is used for strengthening platform rail (10) stability.

6. The special operation platform device for the spent fuel dry storage according to claim 1, wherein: the number of the operation platform bottom supports (1) is four, four the operation platform bottom supports (1) are arranged at four corners of the lower surface of the first layer of operation platform (2) in a rectangular array mode.

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