Method for reloading and transferring containers of fuel assemblies and fuel assemblies

A technology for fuel assemblies and containers, applied in the field of nuclear reactors, can solve problems such as occupying space, and achieve the effects of saving construction costs, simplifying process flow and system configuration

A technology for fuel assemblies and containers, applied in the field of nuclear reactors, can solve problems such as occupying space, and achieve the effects of saving construction costs, simplifying process flow and system configuration

CN107342109AActive Publication Date: 2017-11-10CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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  • Method for reloading and transferring containers of fuel assemblies and fuel assemblies
  • Method for reloading and transferring containers of fuel assemblies and fuel assemblies
  • Method for reloading and transferring containers of fuel assemblies and fuel assemblies

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] The container for fuel assembly of the present invention comprises a container body and a super-hydrophobic layer arranged on the outer surface of the container body.

[0034] The arrangement of the super-hydrophobic layer makes the surface of the container extremely difficult to be wetted by water, the contact angle of water on the surface exceeds 150°, and the sliding angle is less than 20°.

[0035] Alternatively, the superhydrophobic layer can be prepared by any of the following methods: curing of molten alkyl n-ketene dimers, plasma polymerization or etching of polypropylene in the presence of PTFE, microwave plasma-enhanced chemical vapor phase Deposition method, anodizing method or template method and so o...

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Abstract

The invention discloses a method for reloading and transferring containers of fuel assemblies and fuel assemblies; a container for a fuel assembly comprises a container body, an ultra-hydrophobic layer arranged on the outer surface of the container body. According to the method for reloading and transferring containers of fuel assemblies and fuel assemblies, through the arranged ultra-hydrophobic layer on the container, the radioactive coolant in a reactor core and the radioactive water in a spent fuel pool cannot be adhered to the container, thereby the steps of container cleaning in the process of original nuclear reloading, transferring and outward transporting are reduced, the technological process and system configuration are simplified, and construction cost, maintenance cost and radioactive waste water treatment cost are saved.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a container for a fuel assembly and a method for refueling and transferring the fuel assembly. Background technique [0002] After a certain period of operation, the fuel in the nuclear reactor reaches its burnup depth and cannot continue to maintain the chain reaction. At this time, the reactor needs to be refueled. This swapped-out nuclear fuel, known as spent fuel, is highly radioactive and calorific. The process of taking the spent fuel out of the core and transporting it to the spent fuel pool is called the refueling process. [0003] There are many ways to refuel a nuclear reactor, and container refueling is one of the common ways. Container refueling refers to the refueling method in which the loading and unloading machine takes out the spent fuel from the core and puts it into a special container, then transports the container to the vicinity of the spent fuel ...

Claims

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Application Information

Patent Timeline
10 Nov 2017
Publication
CN107342109A
IPC
G21C19/20; G21C19/32; G21F5/06
CPC
G21C19/20; G21C19/32; G21F5/06; Y02E30/30
Inventors
魏川清; 周高飞