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Title:: Development and Application of A New Type of Degassing,Gas-gathering Device for Digital Gas Observation of the Underground Fluid Network

作者:: 高小其¹; 何镧²; 刘佳琪²; 蒋雨函¹; 樊春燕³; 李庆⁴; 王小娟⁵; 陈其峰⁶; 汪世仙⁷; 李志鹏⁸; 朱成英⁹; (1.应急管理部国家自然灾害防治研究院地壳动力学重点实验室,北京 100085; 2.杭州超钜科技有限公司,浙江杭州 310000; 3.中国地震台网中心,北京 100045; 4.云南省地震局洱源地震台,云南洱源 671200; 5.甘肃省地震局,甘肃兰州 730000; 6.山东省地震局,山东济南 250013; 7.安徽省地震局,安徽合肥 230000; 8.四川省地震局,四川成都 610044; 9.新疆维吾尔自治区地震局,新疆乌鲁木齐,830011)

Author(s):: GAO Xiaoqi¹; HE Lan²; LIU Jiaqi²; JIANG Yuhan¹; FAN Chunyan³; LI Qing⁴; WANG Xiaojuan⁵; CHEN Qifeng⁶; WANG Shixian⁷; LI Zhipeng⁸; ZHU Chengying⁹; (1.Key Laboratory of Crustal Dynamics,National Institute of Natural Hazards,Ministry of Emergency Management of China,Beijing 100085,China;2.Hangzhou Chaoju Technology Co.,Ltd.,Hangzhou 310000,Zhejiang,China;3.China Earthquake Networks Center,Beijing 100045,China;4.Eryuan Seismic Station,Yunnan Earthquake Agency,Eryuan 671200,Yunnan,China;5.Gansu Earthquake Agency,Lanzhou 730000,Gansu,China;6.Shandong Earthquake Agency,Jinan 250013,Shandong,China;7.Anhui Earthquake Agency,Hefei 230000,Anhui,China;8.Sichuan Earthquake Agency,Chengdu 610044,Sichuan,China;9.Xinjiang Uygur Awtonomous Region Earthquake Agency,Urumgi 830011,Xinjiang,China)

Keywords:: the underground fluid network; digitization; gas; gas-gathering and degassing device

摘要:: 脱气-集气装置是地震地下流体溶解气和逸出气浓度连续观测系统中必不可少的重要技术环节,装置的脱气效率和稳定性直接影响观测数据质量。根据我国地下流体观测井(泉)水位类型、水温、矿化度、流量等特征,新研制了5种脱气-集气装置,包括大流量低矿化度、小流量低矿化度、小流量高矿化度、真空脱气以及静水位井脱气-集气装置,并分别在甘肃成县台、四川姑咱海子泉、安徽庐江台、甘肃武山台、云南下关井和云南德宏芒邦井等多个台站进行了实验观测,结果表明新型脱气-集气装置基本解决了地下流体观测系统中老式脱气-集气装置易堵塞、脱气率低、脱气量不稳定等问题。

Abstract:: The gas-gathering and degassing device is one of the important key technologies in the continuous observation system of the seismic underground fluid.The efficiency and stability of the degassing and gass gathering equipment directly affects the quality of observation data.According to the type of underground fluid observation wells(springs),water temperature,salinity,water flow and other characteristics,5 kinds of gas-gathering and degassing devices,including the device with large flow and low salinity,the device with small flow and low salinity,the device with large flow and high salinity,the device with small flow and high salinity,the vacuum degassing device,and the static water well degassing device,have been developed.These devices also have been tested and applied in Chengxian station in Gansu province,Haiziquan spring in Sichuan province,Lujiang station in Anhui province,Wushan station in Gansu province,Xiaguan station and Mangbang station in Yunnan province.So far these devices have basically helped to solve the problems of clogging,low degassing rate,and unstable degassing in the old underground fluid observation system.