Ball bed high-temperature gascooled reactor online reloading system

A high-temperature gas-cooled reactor and pebble bed technology, which is applied in the field of reactor engineering

Active Publication Date: 2007-12-05
CHINERGY CO LTD
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Problems solved by technology

Pebble bed high-temperature gas-cooled reactors at home and abroad have adopted this principle and designed th

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  • Ball bed high-temperature gascooled reactor online reloading system

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[0088] The specific implementation of the online refueling system of the pebble bed high-temperature gas-cooled reactor proposed by the present invention is introduced in conjunction with the accompanying drawings:

[0089] The on-line refueling system of the pebble bed high temperature gas-cooled reactor proposed by the present invention has main functions including loading new fuel elements for the pebble bed high temperature gas-cooled reactor, unloading spent fuel elements, and circulating the fuel elements in the reactor through the core and the reactor stack for multiple times. Emptying and reloading of fuel elements in the core, etc.

[0090] In the on-line refueling system of the pebble bed high-temperature gas-cooled reactor, the new fuel elements are simplified at the charging port 1 and then loaded into the new fuel loading system. After the atmosphere is switched, the air atmosphere under normal pressure is switched to that under high pressure Helium atmosphere. T...

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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 the across 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) divides into 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; can enhances 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 for a pebble bed high-temperature gas-cooled reactor, belonging to the technical field of reactor engineering. Background technique [0002] 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 of the power station. [0003] Reacto...

Claims

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Application Information

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IPC IPC(8): G21C19/20
CPCY02E30/30
Inventor 王金华张海泉刘继国
Owner CHINERGY CO LTD
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