摘要
深部岩层的原位保温是深地钻探、深部资源开发的关键技术,但目前该技术仍是深部岩层原位保真取心研究的难题。考虑到深部岩层的复杂地质条件,大规模开采活动衍生的强扰动和高成本问题限制了深部钻取的作业空间,同时在进行深部钻取作业时保真舱距离地表太远会导致供电、温度控制和数据采集的难度极大。为此,使用功能-行为-结构(function-behavior-structure,FBS)模型对深部岩层原位保真取心主动保温系统进行功能定义描述,初步提出了该系统的功能需求和功能结构布局;结合TRIZ(Teoriya Resheniya Izobreatatelskikh Zadatch,发明问题解决理论),对初步提出的主动保温系统设计方案中的技术冲突进行分析和改进,提出了一套由热管、帕尔贴制冷器以及石墨烯加热涂层等组成的高效主动保温系统;通过设定不同的温度梯度来进行恒温控制,实现了不同深度下原位温度的保温模拟,验证了所提出的主动保温系统的可行性。深部岩层原位保真取心主动保温系统的实现可为后续的被动保温以及温压耦合研究提供研究思路和方法。
The in-situ insulation of deep strata is the key technology of deep drilling and deep resource exploitation,but at present,this technology is still a difficult problem in the study of in-situ fidelity coring in deep strata.Taking into account the complex geological conditions of deep strata,the strong disturbance and high cost caused by large-scale mining activities limit the working space of deep drilling.At the same time,the fidelity cabin is too far from the ground surface during deep drilling operations,which will cause great difficulty in power supply,temperature control and data collection.For this reson,the function-behaviorstructure(FBS)model was used to define and describe the function of the active insulation system for in-situ fidelity coring in deep strata,and the functional requirements and functional structure layout of the active insulation system were initially proposed.Combining the TRIZ,the technical conflicts in the preliminary design scheme of active insulation system were analyzed and improved.In addition,a high-efficiency active insulation system consisting heat pipes,Peltier cooler and graphene heating coating was proposed.By setting different temperature gradients and performing constant temperature control,the insulation simulation of insitu temperature at different depths was realized,which verified the feasibility of the proposed active insulation system.The realization of the active insulation system for in-situ fidelity coring in deep strata can provide research ideas and methods for the later research of passive insulation and temperature pressure coupling.
作者
余波
赵武
陈领
高明忠
何志强
万浩
YU Bo;ZHAO Wu;CHEN Ling;GAO Ming-zhong;HE Zhi-qiang;WAN Hao(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China;College ofWater Resource&Hydropower,Sichuan University,Chengdu 610065,China)
出处
《工程设计学报》
CSCD
北大核心
2020年第4期407-415,共9页
Chinese Journal of Engineering Design
基金
国家自然科学基金资助项目(51827901)
国家重点研发计划资助项目(2018YFB1700702)
四川省重点研发项目(2018GZ0116)。
关键词
原位保温
深部岩层
主动保温
TRIZ
创新设计
in-situ insulation
deep strata
active insulation
TRIZ
innovative design
