Ball bed high-temperature gascooled reactor online reloading system and functional subsystem

Abstract

The invention relates to a sphere-bed high-temperature gas-cooled online refueling system, which belongs to the reactor engineering technology area. The states system includes four function subsystem that new fuel loading system, reactor core fuel cycle main system, spent fuel removing system, reactor core evacuation and re-loading system; which is composed of the charging hole (1), the cross ball counter (2), the isolation ball valve (3), the emptying chute (10), the dumping device (11), the broken spherical tank (12), the divider (40) and so on. The end of the charging hole (1) connects theacross ball counter (2), the end of the cross ball counter (2) connects the isolation ball valve (3),the end of isolation ball valve (3) connects the divider (40). The end of the divider (40) dividesinto two ways, each way connects a suit of the isolation ball valve (5). The invention saves the cost; guarantees the integrality of the fuel component in the entire reactor core loading process; canenhances the fuel simplification and the broken ball separation speed and the reliability, saves the cabin space; effectively control the transportation of the fuel element in system pipeline.

Description

technical field [0001] The invention relates to an online refueling system of a pebble bed high-temperature gas-cooled reactor and its functional subsystem, belonging to the technical field of reactor engineering. [0002] Background technique [0003] There are two refueling methods for reactors, one is shutting down and refueling, and the other is non-stop online refueling. Most reactors in the world now use shutdown and refueling methods, such as pressurized water reactors and boiling water reactors. , the fuel elements react in the reactor for a long time and remain still. The advantage of the shutdown refueling method is that the refueling system is relatively simple, and the reliability and safety of the refueling process are high. The disadvantage of the shutdown refueling method is that it needs to be shut down for refueling every one year, and the refueling time is about one month. The shutdown refueling reduces the availability of the reactor and the load factor o...

AI Technical Summary

Problems solved by technology

Pebble bed high-temperature gas-cooled reactors at home and abroad have adopted this principle and designed their own fuel handling systems. The detailed design schemes of foreign countries have not yet been made public.

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