System for transporting radioactive materials
AssigneeHoltec International
InventorKrishna P. Singh
Life of this patent
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Abstract
A system for transporting radioactive materials which may include a containment vessel, a thermal shield, and an impact limiter. The containment vessel may include a vessel body having a storage cavity for receiving radioactive materials, a lid coupled to an upper portion of the vessel body to enclose a top end of the storage cavity, and a lid seal such as a gasket positioned between the lid and the upper portion of the vessel body. The thermal shield may be positioned over the lid. The first impact limiter may be positioned over the thermal shield. The thermal shield may be resistant to high temperatures and may help to protect the integrity of the lid seal when the system is subjected to high temperatures, such as during a fire condition.
Claims20
A system for transporting radioactive materials, the system comprising:
- a containment vessel extending along a longitudinal axis from a top end to a bottom end, the containment vessel comprising:
- a vessel body having a storage cavity configured to receive radioactive materials;
- a lid coupled to an upper portion of the vessel body to enclose a top end of the storage cavity;
- and
- a lid seal positioned between the lid and the upper portion of the vessel body to hermetically seal the top end of the storage cavity;
- a thermal shield comprising a top plate and an annular skirt extending downward from the top plate to form a thermal shield cavity;
- a first impact limiter configured to absorb kinetic energy;
- and
- the first impact limiter and the thermal shield coupled to the containment vessel, the thermal shield located between the first impact limiter and the containment vessel so that the lid seal is located within the thermal shield cavity.
A system for transporting radioactive materials, the system comprising:
- a containment vessel extending along a longitudinal axis from a top end to a bottom end, the containment vessel comprising:
- a vessel body having a storage cavity configured to receive radioactive materials;
- and
- a lid coupled to an upper portion the vessel body to enclose a top end of the storage cavity;
- a thermal shield comprising a top plate, the top plate being a multi-layer construct comprising a first layer and a second layer;
- a first impact limiter configured to absorb kinetic energy;
- and
- the first impact limiter and the thermal shield coupled to the containment vessel, the top plate of the thermal shield located between the first impact limiter and the lid of the containment vessel.
A system for transporting radioactive materials, the system comprising:
- a containment vessel extending along a longitudinal axis from a top end to a bottom end, the containment vessel comprising:
- a vessel body having a storage cavity configured to receive radioactive materials;
- a lid coupled to an upper portion of the vessel body to enclose a top end of the storage cavity;
- and
- a lid seal positioned between the lid and the upper portion of the vessel body to hermetically seal the top end of the storage cavity;
- a thermal shield comprising a top plate having an effective thermal conductivity of 3 Watts/(Meter×Kelvin) or less;
- a first impact limiter configured to absorb kinetic energy;
- and
- the first impact limiter and the thermal shield coupled to the containment vessel, the top plate of the thermal shield located between the first impact limiter and the lid of the containment vessel.
Dependencies are inferred from the claim text.