姑咱海子泉气氡脱气技术系统改造效能分析

Analysis on the system reform efficiency of the gas radon degassing technology in Guza Haizi spring

使用姑咱海子泉气氡观测数据,分析在不同脱气—集气(溅落式和自吸式)装置下观测数据的地震前兆异常反映。溅落式脱气装置在脱气过程中无空气混入,脱气效率较低,但地震前气氡观测异常明显;自吸式脱气装置在脱气过程中有大量空气混入,脱气效率相对较高,在地震前气氡异常不明显。分析认为:(1)空气混入起到稀释作用,致使气氡含量降低;(2)脱气装置前放置恒水位槽,将地震前泉水深部自然逸出气体释放,造成异常信息减少。

By using the radon observation data of Haizi spring in Guza,we analyze the seismic precursor anomaly reflected by the observation data of different degassing-gathering gas（splash type and self-priming）devices.The splash type degassing device has no air mixing in the degassing process,the degassing efficiency is low,but the gas radon anomaly before the earthquake is obvious,the self-priming degassing device has a large amount of air in the degassing process,the degassing efficiency is relatively high,and the gas radon anomaly is not obvious before the earthquake.It is concluded that：（1）The mixing of air has diluted effect,and the radon content of gas is reduced;（2）The constant water level groove before the degassing unit will empty the natural escaping bubbles of the water pumped before the earthquake,resulting in the reduction of abnormal information.