核电厂液态流出物在线监测系统监测设备

1、核电厂液态流出物在线监测系统监测设备调研黄彦君2014年8月29日1 Canberra：LEM 6002 Canberra：OLM1003 Saphymo：LM100s4 Miron: LM 211S5 VF：LEM系列6 Apantec：LM17 FLUKE：Off-line Liquid Effluent MonitorLEMS 600（秦山核电厂现采用系统）111OLM100（可能为秦山拟改进的系统）222LM100SWWW.SAPHYMO.COM/RADIATION-MEASUREMENT/RADIATION-MONITORING-SYSTEMS/LM100S-IN-LINE-LIQU

2、ID-MONITOR/253.HTM3LM100S - In-line liquid monitorIn-line liquid volumetric activity monitoringThe Liquid Monitor LM100S is used for continuous monitoring of liquid effluents volumetric activity.This monitor is designed to complete all monitoring systems in nuclear facilities (reprocessing plants, n

3、uclear power plants, accelerators, research laboratories), where continuous monitoring of liquid effluents volumetric activity is required.It is generally used for low volumetric activity monitoring under normal operating conditions.The monitor displays the measured volumetric activity and triggers

4、alarms whenever preset threshold levels are exceeded.The LM100S is part of the SYSRAY RMS system. Specifications:Monitored radiationEnergy100 KeV to 2,5 MeVDetector11/4 x 1 NaI ScintillatorMeasuring range103 to 109 Bq/m3lead shielding10 cmTID100 GyTemperature- Operational+5 to +40C- Occasional+5 to

5、+55C- Effluent temperature+10 to +60C3LM211SWWW.MIRION.COM/PRODUCTS/LIQUID-MONITORS/4PRODUCT LINE DESCRIPTIONOur liquid monitors detect radiation ineffluent releases or operational processes anduse a 1x1 NaI scintillation detectorinsidea liquid samplerwith 4 lead shielding to detect gamma emitting i

6、sotopes. A radioactive source is built into the NaI crystal which allows drift compensation whenever temperature changes occur.On-line, off-line, in-line and/or adjacent-to-line liquid monitorsScintillation detector NaI (Tl) 1 “ X 1”Measurement range: 10-7 to 10-1 Ci/Cc1E qualification and embedded

7、safety-related software4 2” shielding or 4 4” shieldingEmbedded 241Am source for temperature drift compensationAvailable under 10 CFR 50 App. B, ASME NQA-1 and IEC61226 programs for safety related applications4VF：LEM系列555LM1HTTP:/WWW.APANTEC.COM/LIQUID_MONITORS.ASPLM1 LIQUID MONITORING SYSTEMTheLM1m

8、onitoring system consists of aSD202Ngamma scintillation detector withSDA3Epreamplifier/SCA unit, localRM1Wdisplay and control unit,LS44liquid sampler, liquid pumping system, and local cables to interconnect the system electronics. The detector will continuously measure the gamma energies from the li

9、quid sample stream and provide nuclear pulses to the preamp/SCA. The preamplifier/SCA unit can be set to operate in differentiate mode measuring up to three regions of interest, or it can be operated in integrate mode measuring gross gamma activity.TheLM1liquid monitoring system will achieve a lower limit of detection of 2.7E-8 uCi/cc of Cs137 in a 10 uR/hr Cs137 gamma background with ten minutes integration time and two standard deviations of background.6LM1 Liquid Sampl