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Unloading device and unloadingmethod for pebble-bed reactorfuel spheres

A technology of unloading device and fuel spheres, which is applied in the direction of reactor fuel elements, reactors, and greenhouse gas reduction, and can solve the problems of inability to unload fuel spheres and achieve the effect of shortening the unloading time

Active Publication Date: 2014-08-06
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that the traditional unloading device and unloading method for pebble bed reactor fuel balls in the prior art cannot discharge the fuel balls from the bottom of the core, and provide a pebble bed reactor Unloading device and method for reactor fuel balls

Method used

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  • Unloading device and unloadingmethod for pebble-bed reactorfuel spheres
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  • Unloading device and unloadingmethod for pebble-bed reactorfuel spheres

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Embodiment Construction

[0053] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0054] Such as Figure 1~3 As shown, the unloading device for pebble bed reactor fuel spheres of the present invention includes a unloading component 1 , at least one limiting device 2 , a driving device 3 and a fixing device 4 . In this embodiment, the shape of the discharge member 1 is a hexahedron. Of course, in practical applications, an appropriate shape can be selected according to the actual situation, and is not limited to the shape of a hexahedron.

[0055] Wherein, the discharge member 1 is used to place a number of fuel balls 5 to be discharged (such as Figure 5 shown). The fixing device 4 is fixed on the discharge part 1 . Each of the limiting devices 2 is installed in the discharge member 1 and is used to limit the position of the corresponding fuel balls 5 to be discharged placed in the dis...

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Abstract

The invention discloses an unloading device and an unloading method for pebble-bed reactorfuel spheres. Theunloading device comprises an unloadingcomponent, at least one limiting device, a driving device and a fixing device, wherein theunloading component is used for accommodating a plurality of to-be-unloaded fuel spheres; each limiting device is used for limiting each corresponding to-be-unloaded fuel sphere; and the driving device is used for providing a driving force for each limiting device. Theunloading method comprises the steps as follows: S1, theunloading component is aligned to each corresponding to-be-unloaded fuel sphere; S2, each limiting device is located in a set initial position; S3, the driving device drives each limiting device to rotate to enable each corresponding to-be-unloaded fuel sphere to completely enter theunloading component; S4, each to-be-unloaded fuel sphere is unloaded to a corresponding designated position; S5, steps S1-S4 are repeated. According to the unloading device and the unloading method, unloading of the pebble-bed reactorfuel spheres arranged regularly and batch unloading of the fuel spheres can be realized.

Description

technical field [0001] The invention relates to the technical field of nuclear reactor engineering and safety, in particular to an unloading device and a unloading method for pebble bed reactor fuel spheres. Background technique [0002] The fuel balls of the existing pebble bed reactors are arranged in a disordered state, that is to say, the position of the fuel balls is uncertain when they fall into the core. However, when the fuel spheres are arranged in a disordered state, the reaction experiment environment of each fuel sphere is inconsistent, resulting in a poor reaction effect. Therefore, in order to ensure that the reaction environment of each fuel sphere is consistent and uniform, and to improve its physical properties, a regular arrangement of fuel spheres in a pebble bed reactor becomes an option. [0003] In the existing unloading device for pebble bed reactor fuel balls, during the fuel cycle, the fuel balls move from the upper part of the fuel area to the bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/20
CPCY02E30/30
Inventor 曹云孙健
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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