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

A pressurized water reactor nuclear power plant, fuel damage technology, applied in the field of nuclear power, can solve problems such as poor radiation protection control, iodine contamination of personnel, etc.

CN102324257AActive Publication Date: 2012-01-18CHINA GENERAL NUCLEAR POWER CORP +1
6 Cites 23 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-01-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

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...