A refueling method and refueling device for a land-based small reactor
A reactor, small technology, applied in the field of nuclear power, can solve the problems of long refueling path, complicated refueling operation, large volume of refueling water, etc., to achieve the effect of short refueling path, simplified refueling operation and small volume
Active Publication Date: 2019-01-22
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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Problems solved by technology
[0004] 1. The filling and discharging volume of the spent fuel pool is large, and the volume of circulating refueling water required during the refueling process is relatively large, which is easy to cause waste
[0005] 2. The refueling operation is cumbersome and the refueling path is long
Method used
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] see in conjunction Figure 1-Figure 8 , which is the first embodiment of the refueling device for land-based small reactors according to the present invention.
[0032] The refueling device for land-based small reactors in this embodiment is used to replace new and spent fuel assemblies in water, including:
[0033] The first water jacket 1, which in this embodiment is an accommodating cavity with a certain depth and a certain isolation function, can be set...
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The invention discloses a refuelling apparatus used for an overland miniature reactor. The refuelling apparatus comprises a containment vessel which containing a containment vessel body and a containment vessel top cover having a first open end arranged on the containment vessel body; a reaction container arranged in the containment vessel, which comprises a reaction container body and a reaction container top cover having a second open end arranged on the reaction container body; a first water jacket and a second water jacket, wherein, the first water jacket is sleeved outside the containment vessel, the containment vessel top cover and the reaction container top cover are dismounted, the second water jacket keeps sealing of a cavity between the containment vessel body and the reaction container body, and the reaction container body and the first water jacket enable liquid communication. The invention also discloses a refuelling method used for the overland miniature reactor. According to the refuelling method and the refuelling apparatus, replacement of novel and old fuel components can be completed in water; refuelling operation is simplified, refuelling path is short, and the refuelling water volume circulated during a refuelling process is small.
Description
technical field [0001] The invention relates to the field of nuclear power, in particular to a refueling method and a refueling device for a small onshore reactor. Background technique [0002] In the prior art, the nuclear reactor takes out the fuel assembly and replaces it mainly through the following methods. First, the lifting tool of the crane is lowered to the top of the fuel assembly, and a plurality of downwardly extending components are arranged on the lifting tool. By surrounding and vertically intersecting Stack controls extend to the top of the fuel assembly. Next, the downwardly extending member is locked to a corresponding mating member at the top of the fuel assembly, and the lifting tool is connected to the fuel assembly. Finally, the crane moves the fuel assembly into the spent fuel pool and separates the downwardly extending assembly from the top of the fuel assembly, and the lifting tool is disconnected from the fuel assembly. [0003] The refueling meth...
Claims
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IPC IPC(8): G21C19/19G21C19/20
CPCG21C19/19G21C19/207Y02E30/30
Inventor 邵慧超帅剑云王晓张立德韩凤山
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD