Repackaging container for high-integrity radioactive waste container

Abstract

Disclosed according to the present invention is a repackaging container that can store a high-integrity container made of high-density polyethylene for accommodating radioactive waste. The repackaging container for a high-integrity radioactive waste container comprises: a main body having a space for accommodating a high-integrity container; a plurality of side-impact absorption units installed, distanced from each other, in the sides of the main body to absorb impact thereto; and a plurality of corner-impact absorption units installed in the corners of the main body to absorb impact thereto.

Description

Repackaging container for high-integrity containers for radioactive waste

[0001] The present invention relates to a repackaging container capable of storing a high-density polyethylene high-integrity container for containing radioactive waste.

[0002] In general, polyethylene (PE) high integrity containers (HICs) are used in various nuclear power plants as containers for storing and disposing of radioactive waste (e.g., waste resins). Repackaging containers designed to ensure disposal suitability for polyethylene HICs are typically made of concrete to provide sufficient mechanical strength and ensure ease of manufacturing. The weight of a composite container, including a HIC with a size of approximately 1,200 L containing waste resins and a repackaging container, is estimated to be about 2.4 tons. Ensuring safety during the transportation of such composite containers is critical. While it is necessary to ensure safety in the event of a drop caused by human error or equipment malfunction during transport, there is a problem in that it is not adequately capable of responding to such situations.

[0003] In particular, due to the characteristics of high-density polyethylene, it is difficult to provide the level of mechanical strength required by domestic disposal sites, resulting in a failure to secure disposal suitability. To address this, it has become necessary to develop repackaging containers with sufficient mechanical strength.

[0004] Accordingly, the present invention is proposed to solve the aforementioned problems, and the objective of the present invention is to provide a repackaging container for high-integrity containers for radioactive waste that accommodates a polyethylene high-integrity container and can secure excellent mechanical stability.

[0005] Another objective of the present invention is to provide a repackaging container for high-integrity radioactive waste that can efficiently respond to the falling of heavy objects caused by equipment malfunction or the like during the transportation of composite containers.

[0006] Another objective of the present invention is to provide a repackaging container for high-integrity polyethylene containers for radioactive waste that absorbs impact when the edges or sides of the composite container come into contact with the ground during the transport process, thereby ensuring the operational stability of the high-integrity polyethylene containers.

[0007] To achieve the above-mentioned objective of the present invention, the present invention provides a repackaging container for a high-integrity container for radioactive waste comprising: a body portion having a space for accommodating a high-integrity container; a plurality of side shock absorbers installed at intervals on the side of the body portion to absorb shocks applied to the side of the body portion; and a plurality of corner shock absorbers installed on the corner portion of the body portion to absorb shocks applied to the corner portion of the body portion.

[0008] It is preferable that the above body part be made of concrete.

[0009] The above-mentioned side shock absorber preferably includes a first rubber supporting the outer part of the body part, a second rubber positioned with a portion protruding into the inner part of the body part, and a compression coil spring installed between the first rubber and the second rubber.

[0010] The above-mentioned corner shock absorber is preferably made of a hollow steel or polymer material and is positioned so that a portion of it protrudes inwardly from the corner of the body.

[0011] The present invention comprises a body made of concrete, multiple spring-shaped shock absorbers installed on the side sections, and another shock absorber made of hollow steel or polymer material installed on the corner sections. This invention ensures excellent mechanical stability and can efficiently respond to the fall of heavy objects caused by equipment malfunction during the transportation of composite containers.

[0012] In particular, the present invention can ensure the stability of the operation of a polyethylene high-integrity container by installing a plurality of shock absorbers on the corner portions to absorb shock when the edge of the composite container hits the ground during the process of transporting the composite container.

[0013] FIG. 1 is a drawing showing the main configuration of a repackaging container of a high integrity container for radioactive waste cut vertically to explain an embodiment of the present invention.

[0014] FIG. 2 is a planar view illustrating the main configuration of a repackaging container for high integrity of radioactive waste to explain an embodiment of the present invention.

[0015] FIG. 3 is a configuration diagram illustrating a shock absorber installed on the side to explain an embodiment of the present invention.

[0016] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. In the drawings, parts unrelated to the explanation have been omitted to clearly explain the present invention, and the same reference numerals are assigned to identical or similar components throughout the specification.

[0017] FIGS. 1 and 2 illustrate a repackaging container for a high-integrity container for radioactive waste to illustrate an embodiment of the present invention.

[0018] The repackaging container (100, hereinafter referred to as the "repackaging container") of the high integrity container for radioactive waste of the embodiment of the present invention includes a body part (101), a side shock absorbing part (103), and a corner shock absorbing part (105).

[0019] The body portion (101) has a space for accommodating polyethylene (PE) high integrity containers (HIC) inside (inside). The body portion (101) is made entirely of concrete.

[0020] Eight side shock absorbers (103) are arranged in the middle of the side of the body part (101). That is, four side shock absorbers (103) are arranged in the body part (101) when viewed from a planar view (see FIG. 2), and when viewed from the side, they are arranged in the upper and lower positions, respectively. The body part (101) in the part where the side shock absorbers (103) are arranged may form a space. That is, the body part (101) has eight spaces in the side part, and the side shock absorbers (103) are arranged in these spaces. As shown in FIG. 3, the side shock absorbers (103) are equipped with a first rubber (103a), a second rubber (103b), and a compression coil spring (103c) arranged between the first rubber (103a) and the second rubber (103b).

[0021] The first rubber (103a) and the second rubber (103b) are rubber pads with excellent elasticity.

[0022] It is preferable that the first rubber (103a) be positioned to support the outer wall portion of the body portion (101) as shown in FIG. 3, and the second rubber (103b) be positioned to protrude by a certain thickness (D) into the inner wall portion of the body portion (101). It is preferable that the thickness (D) of the second rubber (103b) protruding is in the range of 1 to 5 cm.

[0023] The first rubber (103a) and the second rubber (103b) can absorb shock acting on the side of the body part (101) together with the compression coil spring (103c). That is, it is preferable that the second rubber (103b) be arranged in a structure that allows a portion of it to come into contact with the outer part of the high integrity container (HIC). The structure of this side shock absorbing part (103) allows the shock to be absorbed through the second rubber (103b), the compression coil spring (103c), and the first rubber (103a) when an impact occurs on the side of the body part (101).

[0024] The corner shock absorbers (105) are installed at the corner portion of the lower side of the body portion (101). The corner shock absorbers (105) may be made of a polymer with excellent elastic properties or a hollow steel structure. Four or eight corner shock absorbers (105) may be installed at regular intervals at the corner portion. The corner shock absorbers (105) are provided with a protrusion (105a) of a certain size that protrudes inward (inner surface) from the corner of the body portion (101). That is, the corner shock absorbers (105) are positioned at the corner of the body portion (101) and installed in a structure in which a portion protrudes from the bottom surface of the body portion (101) and a portion of the side surface of the bottom surface protrudes. The protrusion (105a) of the corner shock absorbers (105) can absorb the shock when the corner portion of the composite container comes into contact with the ground and receives a shock during the process of moving the composite container containing the repackaging container.

[0025] Excellent mechanical safety can be ensured by packaging polyethylene high-integrity containers using the repackaging container of the present invention. In addition, the present invention can efficiently cope with the falling of heavy objects that may occur due to equipment malfunction or human error when transporting composite containers. In particular, considering the transport process of composite containers, the present invention can ensure the safety of the operation of polyethylene high-integrity containers by smoothly absorbing the impact that occurs when a fall occurs and collides with the ground at the lower edge area or side.

[0026] Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto and can be implemented with various modifications within the scope of the claims, the detailed description of the invention, and the attached drawings, and it is obvious that such modifications also fall within the scope of the present invention.

Claims

1. A body portion having a space for accommodating a high-integrity container, A plurality of side shock absorbers are installed at intervals on the side of the body portion and absorb shocks applied to the side of the body portion, and A plurality of corner shock absorbers installed at the corner portions of the body part and absorbing impact applied to the corner portions of the body part. A repackaging container for high-integrity containers for radioactive waste containing 2. In Claim 1, The above body part A repackaging container for high-integrity containers for radioactive waste made of concrete.

3. In Claim 1, The above-mentioned side shock absorber is A first rubber supporting the outer part of the body portion, A second rubber that is positioned with a portion protruding into the inner part of the body portion, A compression coil spring installed between the first rubber and the second rubber. A repackaging container for high-integrity containers for radioactive waste containing 4. In Claim 1, The above corner shock absorber A repackaging container for a high-integrity container for radioactive waste, made of a steel or polymer material having a hollow interior, with a portion protruding inwardly from the corner of the body portion.

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