Novel space reactor pressure vessel structure

Abstract

The invention provides a novel space reactor pressure vessel structure. The novel space reactor pressure vessel structure comprises an outer pressure vessel, an inner pressure vessel, an upper sealingpressure vessel, a lower reactor core chamber and support plates; and each of the outer pressure vessel and the inner pressure vessel is a hemispherical and cylindrical shell structure, the inner pressure vessel is arranged in the outer pressure vessel, an annular descending channel is formed between the inner pressure vessel and the outer pressure vessel, an upper support plate and a lower support plate are arranged at the upper end and the lower end of the cylindrical section of the inner pressure vessel respectively, the upper sealing vessel is arranged in the hemispherical structure of the inner pressure vessel and is connected with the upper supporting plate, and a space for accommodating a radiation shielding materials is formed between the inner pressure vessel and the upper sealing vessel. The space between the upper sealing pressure vessel and the inner pressure vessel is filled with the radiation shielding material to achieve a certain buffering effect, and a plurality of buffering connectors are arranged between the upper sealing pressure vessel and the inner pressure vessel to enhance the structural stability and the pressure bearing capacity, so the overall structurehas the advantages of simple design, low price, and easiness in machining.

Description

Technical field [0001] The invention relates to a reactor pressure vessel structure, in particular to a novel space reactor pressure vessel structure, belonging to the technical fields of nuclear reactor safety, nuclear technology, mechanical engineering and the like. Background technique [0002] The space environment is a new type of nuclear energy application field, but due to space launch capabilities and cost constraints, space reactors only shield key areas from radiation. Therefore, shadow shielding structures are usually used, that is, only the shadow shielding structure is far away from the reactor side area for radiation shielding. . Since the radiation shielding materials are usually materials with high density such as tungsten and lead, and the reactor radiation dose is high, a large amount of radiation shielding materials are required, which makes the space reactor larger. At the same time, due to the influence of the spherical chamber structure on both sides of the...

AI Technical Summary

Problems solved by technology

Since the radiation shielding materials are generally high-density materials such as tungsten and lead, and the radiation dose of the reactor is high, a large amount of radiation shielding materials is required, which in turn makes the space reactor mass larger

At the same time, due to the impact of the structure of the spherical chamber on both sides of the reactor pressure vessel and the outer measuring device, pipeline and other structures, the radiation shielding structure cannot be close to the reactor core, and the quality of the radiation shielding structure can only be reduced by sacrificing the scope of the shielding area.

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