Optimized Design Nuclear Power Plant Radiation Monitoring System

Radiation monitoring nuclear power plant nuclear environmental science subject of an application,Radiation monitoring system is one of many systems of nuclear power plants in the more important systems,However,due to environmental and system equipment itself defect,system failure rate remains high,affecting the results of radiation monitoring of nuclear power plants,power plant staff and the public will have a negative impact,Thus the stability of nuclear power plant radiation monitoring system on the development of nuclear power in our country and the world nuclear power has far-reaching significance?This article first nuclear power plant radiation monitoring system existing communication deficiencies discussed,radiation monitoring system in the signal transmission communication failures frequently result in flash device is unavailable,data cannot be updated and pass out,based on radiation monitoring system performance 485 transfer more stability of the system to silicon semiconductors,sodium iodide crystals,etc.,as ionization chamber radiation detector detected a weak signal is amplified in the preamplifier,and then sent to a second stage amplification of the main amplifier,the signal amplified by 485 transfer to PC controllers,PLC and other equipment.The system consists of a radiation detector,a signal processing unit 485,and the rear end of the remote display PC over a threshold alarm linkage equipment components?Secondly,this dissertation radiation monitoring system to improve several important channel optimization,mainly to monitor the main control room ventilation system of channels,since the main control room staff is relatively large,and the main control room of the normal operation of the unit,if the main control room radioactivity monitoring will result in the loss of panic,have a significant impact on the control of the entire unit;the main structure of the detector is optimized to improve the signal problem when mutated room pressure changes,the channel detector is to use inflatable ionization chamber,the ionization chamber probes can detect very weak ? radiation dose,very useful in the area monitoring of low background;Constant temperature and pressure cylindrical chamber filled with an inert gas,if pressure to produce change will lead to the ionization of the current mutation,a false alarm;the original manufacturers detector is made of resin and plastic material as a detector outside the chamber wall,as monitored a negative pressure within the areas of the room,opened the room door seal pressure will suddenly changes,if deformed detector materials will affect the measurement signal.Finally,radiation monitoring system for measurement of fluid emission monitoring channels can be improved,with the development and application of semiconductor materials,semiconductor detectors replace the old GM counter tube,a differential ionization chamber detectors,etc.have become increasingly subject to people of all ages a semiconductor detector is small,stable performance.Optimize system design is complete,the field test environment for a long run.Test results show that the system can complete the normal radiation monitoring each region,greatly improved the fault frequently before the flash,signaling mutations and other issues.Transmission is stable and reliable,the system is running correctly,it proved the feasibility of system optimization.