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Radiation protection control method for unit operation and maintenance during fuel damage of pressurized water reactor nuclear power station

A technology for pressurized water reactor nuclear power plants and fuel damage, which is applied in the field of nuclear power and can solve problems such as poor radiation protection control and internal iodine contamination of personnel.

Active Publication Date: 2014-07-09
CHINA GENERAL NUCLEAR POWER CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method that can effectively control and protect against the defects in the prior art that the radiation protection control after fuel damage in the PWR nuclear power plant is not effective, resulting in iodine contamination of personnel, and does not cause internal iodine contamination of the staff. Radiation protection control method during unit operation when the fuel of the contaminated PWR nuclear power plant is damaged

Method used

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  • Radiation protection control method for unit operation and maintenance during fuel damage of pressurized water reactor nuclear power station
  • Radiation protection control method for unit operation and maintenance during fuel damage of pressurized water reactor nuclear power station
  • Radiation protection control method for unit operation and maintenance during fuel damage of pressurized water reactor nuclear power station

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Embodiment Construction

[0097] 1. A method for controlling radiation protection in unit operation when fuel in a pressurized water reactor nuclear power plant is damaged, comprising:

[0098] Chemical operation control;

[0099] Control the drainage of leakage water in the main circuit to prevent concentrated volatilization of radioactive iodine;

[0100] Monitor the radioactivity in the relevant channels through the radiation monitoring system, and measure and evaluate the air pollution in various parts of the production site;

[0101] In view of radioactive pollution, implement iodine removal for the ventilation system of the reactor building;

[0102] Carry out collective protection and personal protection on the work site.

[0103] In the radiation protection control method during the operation of the unit when the fuel of the pressurized water reactor nuclear power plant is damaged, it preferably includes:

[0104] The chemical operation control is as follows: operating the discharge double-o...

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Abstract

The invention discloses a radiation protection control method for unit operation and maintenance during fuel damage of a pressurized water reactor nuclear power station. The radiation protection control method comprises the steps of: carrying out radiation control through scavenging and chemical operation of a main loop; monitoring relevant channel radioactivity conditions; measuring and evaluating air pollution of a production site; implementing iodine removal and scavenging on a reactor plant aiming at the radioactive contamination condition; and carrying out collective protection and personnel protection on the production site. Aiming at the defect of personal iodine internal contamination caused by poor radiation protection control after fuels of the pressurized water reactor nuclear power station are damaged in the prior art, the invention provides the radiation protection control method capable of carrying out effective control and protection without causing internal contamination to workers.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and relates to a nuclear fuel damage treatment method, in particular to a radiation protection control method when the fuel of a pressurized water reactor nuclear power plant is damaged, which includes a radiation protection control method during unit operation and a radiation protection during unit shutdown and maintenance Control Method. Background technique [0002] During the operation of the pressurized water reactor nuclear power plant, when the fuel assembly is damaged, the fission products contained in the fuel rods will enter the main circuit, and the gaseous fission products will be released into the reactor building through the boundary of the main circuit, causing air pollution. Moreover, during refueling and overhaul, these fission products are easier to release with the opening of the main circuit, and a large amount of airborne radionuclides will leave the main circuit and en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21D3/06G21C17/04G21C13/10
CPCY02E30/32Y02E30/00Y02E30/30
Inventor 周良发杨俊武沈星刘强伦振明钟前卫陈坡薛峰高兴李博袁伟蒋开全
Owner CHINA GENERAL NUCLEAR POWER CORP
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