阅读说明：本技术 一种乏燃料容器的吊篮用导轨组件 (Guide rail assembly for hanging basket of spent fuel container ) 是由 郝建生 卢可可 郑岳山 李宁 李馨楠 王庆 谢亮 姚琳 王子龄 唐兴龄 包博宇 于 2021-08-18 设计创作，主要内容包括：一种乏燃料容器的吊篮用导轨组件,吊篮从下往上依次设有吊篮底板、吊篮传热板、吊篮支撑板和吊篮顶板,吊篮外侧套有乏燃料容器筒体,包括滑动连接的导轨和导轨滑道,导轨围绕乏燃料容器筒体的轴向方向固定于乏燃料容器筒体的内腔表面,导轨的数目至少为3,吊篮外侧还设有轴向槽,导轨滑道固定于轴向槽内。本发明通过导轨和导轨滑道的配合,为吊篮安装时提供导向,提供周向定位,进而约束吊篮的周向转动,同时还可以防止吊篮碰撞乏燃料容器筒体内壁表面,保护乏燃料容器筒体内壁表面的防护镀层。(The utility model provides a guide rail set spare for hanging flower basket of spent fuel container, hanging flower basket from up being equipped with hanging flower basket bottom plate, hanging flower basket heat transfer plate, hanging flower basket backup pad and hanging flower basket roof from down in proper order, hanging flower basket outside cover has spent fuel container barrel, including sliding connection's guide rail and guide rail slide, the guide rail is fixed in the inner chamber surface of spent fuel container barrel around the axial direction of spent fuel container barrel, and the figure of guide rail is 3 at least, and the hanging flower basket outside still is equipped with the axial groove, and the guide rail slide is fixed in the axial inslot. The guide rail and the guide rail slideway are matched to provide guide for the installation of the hanging basket and circumferential positioning, so that the circumferential rotation of the hanging basket is restrained, and meanwhile, the hanging basket can be prevented from colliding with the inner wall surface of the spent fuel container barrel, and the protective coating on the inner wall surface of the spent fuel container barrel is protected.)

1. The utility model provides a guide rail set spare for hanging flower basket of spent fuel container, hanging flower basket (2) are from up being equipped with hanging flower basket bottom plate (24), hanging flower basket heat transfer plate (23), hanging flower basket backup pad (22) and hanging flower basket roof (21) down in proper order, hanging flower basket (2) outside cover has spent fuel container barrel (1), its characterized in that, guide rail (5) and guide rail slide (3) including sliding connection, guide rail (5) center on the axial direction of spent fuel container barrel (1) is fixed in the inner chamber surface of spent fuel container barrel (1), the figure of guide rail (5) is 3 at least, hanging flower basket (2) outside still is equipped with the axial groove, guide rail slide (3) are fixed in the axial inslot.

2. The guide rail assembly for a gondola of a spent fuel container according to claim 1, characterized in that a gap is left between the guide rail (5) and the guide rail slideway (3).

3. The guide rail assembly for a hanging basket of a spent fuel container according to claim 2, wherein a clearance distance between the outer surface of the guide rail (5) and the groove bottom surface of the guide rail slideway (3) is smaller than a radial clearance distance between the outer wall of the hanging basket (2) and the inner cavity surface of the spent fuel container barrel (1).

4. The guide rail assembly for a gondola of a spent fuel container according to claim 1, characterized in that the guide rail (5) is fixed to the inner cavity surface of the spent fuel container barrel (1) by a guide rail screw (4).

5. The guide rail assembly for a gondola of a spent fuel container according to claim 1, characterized in that the guide rails (5) are equiangularly spaced around a central axis of the spent fuel container barrel (1).

6. The guide rail assembly for the hanging basket of the spent fuel container according to claim 1, wherein both ends of the guide rail (5) are provided with chamfers.

7. The rail assembly for a gondola of a spent fuel container according to claim 1, wherein the rail runner (3) penetrates the gondola heat transfer plate (23) and the gondola support plate (22) in order from bottom to top.

8. The guide rail assembly for a basket of a spent fuel container according to claim 7, wherein the lower end of the guide rail slideway (3) is fixed on the basket bottom plate (24) by welding or screw connection, the upper end of the guide rail slideway (3) is fixed on the basket top plate (21) by welding or screw connection, and the guide rail slideway (3) is further fixed on the basket support plate (22) and the basket heat transfer plate (23) by welding or screw connection.

9. The rail assembly for a gondola of a spent fuel container according to any one of claims 1 to 8, wherein the axial slot is in the form of a dovetail groove.

Technical Field

The invention relates to the field of dangerous goods transportation and storage, in particular to a guide rail assembly for a hanging basket of a spent fuel container.

Background

The spent fuel container is a special device for transporting and storing spent fuel, the spent fuel is also called irradiated nuclear fuel, which refers to nuclear fuel which is irradiated by radiation and used, and is usually generated by a nuclear reactor of a nuclear power station, and the spent fuel contains a large amount of radioactive elements, so that the spent fuel has very strong radioactivity, and in order to ensure the safety of the spent fuel in the transportation and storage processes, when the spent fuel container is selected, a proper spent fuel container structure needs to be selected to ensure the safety of the spent fuel in the spent fuel container.

The inside hanging flower basket that is provided with of present spent fuel container for load spent fuel to for the spent fuel provides support and guarantee critical safety, the whole open columniform that is of hanging flower basket, by hanging flower basket bottom plate, heat transfer plate, backup pad and hanging flower basket roof install in proper order and constitute, the hanging flower basket outside cover has spent fuel container barrel, according to actual need, spent fuel container barrel inner wall is provided with the protection cladding material in order to prevent to corrode.

In the process of realizing the transportation and storage of the spent fuel, the hanging basket is firstly installed in the spent fuel container barrel, and the hanging basket is not provided with a guide device, so that the hanging basket cannot be positioned in the circumferential direction of the inner cavity of the spent fuel container barrel during the installation of the hanging basket, and the hanging basket installation process is inconvenient; meanwhile, the hanging basket and the inner wall of the spent fuel container barrel are inevitably collided, so that a protective coating on the inner wall of the spent fuel container barrel is damaged, and the spent fuel container barrel is corroded.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to provide a guide rail assembly for a hanging basket of a spent fuel container.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a guide rail set spare for hanging flower basket of spent fuel container, the hanging flower basket is from up being equipped with hanging flower basket bottom plate, hanging flower basket heat transfer plate, hanging flower basket backup pad and hanging flower basket roof in proper order down, hanging flower basket outside cover has spent fuel container barrel, guide rail and guide rail slide including sliding connection, the guide rail centers on the axial direction of spent fuel container barrel is fixed in the inner chamber surface of spent fuel container barrel, the figure of guide rail is 3 at least, the hanging flower basket outside still is equipped with the axial groove, the guide rail slide is fixed in the axial inslot.

Further, according to the guide rail assembly for the hanging basket of the spent fuel container, a gap is reserved between the guide rail and the guide rail slide way.

Further, as above, the gap distance between the outer surface of the guide rail and the bottom surface of the groove of the guide rail slideway is smaller than the radial gap distance between the outer wall of the hanging basket and the surface of the inner cavity of the cylinder body of the spent fuel container.

Further, the guide rail assembly for the hanging basket of the spent fuel container is characterized in that the guide rail is fixed on the inner cavity surface of the spent fuel container barrel through a guide rail screw.

Further, the guide rail assembly for the hanging basket of the spent fuel container is characterized in that the guide rails are distributed around the central axis of the spent fuel container barrel body at equal angular intervals.

Further, as the guide rail assembly for the hanging basket of the spent fuel container, chamfers are arranged at two ends of the guide rail.

Further, as above, the guide rail slideway penetrates through the basket heat transfer plate and the basket support plate from bottom to top in sequence.

Further, as above the guide rail assembly for hanging basket of the spent fuel container, the lower end of the guide rail slideway is fixed on the hanging basket bottom plate through welding or screw connection, the upper end of the guide rail slideway is fixed on the hanging basket top plate through welding or screw connection, and the guide rail slideway is further fixed on the hanging basket support plate and the hanging basket heat transfer plate through welding or screw connection.

Further, the guide rail assembly for the hanging basket of the spent fuel container adopts a dovetail groove in the form of the axial groove.

The invention has the beneficial effects that:

according to the guide rail assembly for the hanging basket of the spent fuel container, the guide rail assembly is arranged on the hanging basket, so that guiding and circumferential positioning are provided for the hanging basket during installation, the circumferential rotation of the hanging basket is further restrained, and the hanging basket is prevented from colliding with the inner wall surface of the spent fuel container barrel.

Drawings

FIG. 1 is a schematic view of a rail assembly for a spent fuel container basket according to an embodiment of the present invention;

FIG. 2 is a view A-A of FIG. 1 provided in an embodiment of the present invention;

fig. 3 is a partial enlarged view I of fig. 2 provided in an embodiment of the present invention.

In the attached drawings, 1, a spent fuel container cylinder; 2. a hanging basket; 3. a guide rail; 4. a guide rail screw; 5. a guide rail slide; 21. a hanging basket top plate; 22. a hanging basket supporting plate; 23. a basket heat transfer plate; 24. a basket bottom plate.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 1-3, a guide rail assembly for a hanging basket of a spent fuel container, a hanging basket 2 is sequentially provided with a hanging basket bottom plate 24, a hanging basket heat transfer plate 23, a hanging basket support plate 22 and a hanging basket top plate 21 from bottom to top, a spent fuel container barrel 1 is sleeved outside the hanging basket 2 and comprises a guide rail 5 and a guide rail slideway 3 which are in sliding connection, the guide rail 5 is fixed on the surface of an inner cavity of the spent fuel container barrel 1 in the axial direction around the spent fuel container barrel 1, the number of the guide rail 5 is at least 3, an axial groove is further arranged outside the hanging basket 2, and the guide rail slideway 3 is fixed in the axial groove.

In the embodiment of the invention, the whole basket 2 is in an open cylindrical shape and is formed by sequentially laminating and installing a basket bottom plate 24, a heat transfer plate 23, a support plate 22 and a basket top plate 21, guide rails 5 and guide rail slideways 3 are used in a matched manner, an axial groove is dug on the outer side of the basket 2 along the central axis direction of the basket 2, the guide rail slideways 3 are fixed in the axial groove, the positions of the guide rails 5 and the guide rail slideways 3 are corresponding, one guide rail 5 corresponds to one guide rail slideway 3, the number of the guide rails 5 is at least 3, the position of the gondola 2 can be fixed by at least 3 guide rails 5, by cooperation of the guide rails 5 and the guide rail runners 3, provides guidance when the hanging basket 2 is installed, provides circumferential positioning, further restricts the circumferential rotation of the hanging basket 2, meanwhile, the hanging basket 2 can be prevented from colliding with the surface of the inner wall of the spent fuel container cylinder 1, and the protective coating on the surface of the inner wall of the spent fuel container cylinder 1 is protected.

In the embodiment of the invention, a gap is reserved between the guide rail 5 and the guide rail slideway 3, so that the hanging basket 2 is convenient to install.

In the embodiment of the invention, the clearance distance between the outer surface of the guide rail 5 and the bottom surface of the groove of the guide rail slideway 3 is smaller than the radial clearance between the outer wall of the hanging basket 2 and the surface of the inner cavity of the container 1, so as to prevent the hanging basket 2 from colliding with the surface of the inner cavity of the container 1 and protect the protective coating on the surface of the inner cavity of the container 1.

In the embodiment of the invention, the guide rail 5 is fixed on the surface of the inner cavity of the spent fuel container barrel 1 through the guide rail screw 4, so that the guide rail 5 can be effectively prevented from deviating in the process of installing the hanging basket 2.

In the embodiment of the invention, the guide rails 5 are distributed around the central axis of the spent fuel container barrel 1 at equal angular intervals, and the peripheral rotation of the hanging basket 2 can be restrained more effectively by analyzing from the aspect of stress analysis, and the hanging basket 2 is more convenient and faster to install.

In the embodiment of the invention, chamfers are arranged at two ends of the guide rail 5 and are mainly used for guiding and positioning when the hanging basket 2 is installed in the container 1.

In the embodiment of the invention, the guide rail slideway 3 penetrates through the basket heat transfer plate 23 and the basket support plate 22 along the axial groove of the basket 2 from bottom to top in sequence, so as to be used for better fixedly mounting the guide rail slideway 3 and the basket 2.

In the embodiment of the invention, the lower ends of the guide rail slideways 3 are fixed on the basket bottom plate 24 through welding or screw connection, the upper ends of the guide rail slideways 3 are fixed on the basket top plate 21 through welding or screw connection and are used for further fixedly mounting the guide rail slideways 3 and the basket 2, and the guide rail slideways 3 are further fixed on the basket supporting plate 22 and the basket heat transfer plate 23 through welding or screw connection and are used for further fixedly mounting the guide rail slideways 3 and the basket 2.

In the embodiment of the invention, the axial groove is in a dovetail groove form, so that the material and the cost can be saved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.