Spent fuel storage and transportation container

Abstract

The invention relates to the technical field of the processing of nuclear waste and specifically relates to a spent fuel storage and transportation container. The container includes a container main body and buffer devices; and the buffer devices are arranged on the two ends of the container main body and used for absorbing impact energy under normal transportation and accident conditions. The buffer devices are installed on the two ends of the container and used for absorbing the impact energy under the normal transportation and accident conditions; the main buffer materials of the buffer devices are China fir and balsa wood, and the externals of the buffer devices are coated by stainless steel plates; and the wood can be deformed under pressure, so that buffer effects can be achieved, the vibration of the container main body under the normal transportation and accident conditions can be reduced, the tightness of the container main body can be guaranteed, and the leakage possibility of radioactive materials when collision occurs can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of nuclear waste treatment, in particular to a spent fuel storage and transportation container. Background technique [0002] Spent fuel, also known as irradiated nuclear fuel, is nuclear fuel that has been exposed to radiation and used, usually produced by nuclear reactors in nuclear power plants. The nuclear fuel undergoes a nuclear reaction through neutron bombardment in the reactor, and is discharged from the reactor after a certain period of time. It contains a large amount of unused fertile material 238 U or 232 Th, unburned and newly formed fissile material 239 Pu, 235 U or 233 U and transuranium elements such as neptunium, americium, and curium produced by nuclear fuel during the irradiation process, as well as fission elements 90 Sr, 137 Cs, 99 Tc et al. The uranium content of this fuel is reduced and the nuclear reaction cannot continue, so it is called spent fuel. Spent nuclear fuel cont...

AI Technical Summary

Problems solved by technology

However, the existing shielded transport containers have problems of insufficient safety and reliability under normal transport and accident conditions.

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