水平孔某型喷反装置的结构优化实验  

Structure optimization of a jet-type reverse circulation tool for horizontal hole

作　　者：黄华元[1] 冯晓[1] 马春林[1] 丁伯成[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《煤田地质与勘探》2010年第2期71-75,共5页Coal Geology & Exploration

摘　　要：通过类比相关喷反机具设计,设计并制造了某型喷反装置模型。之后进行了结构优化实验研究,得到了一系列适于现场工况的喷反装置关键器件优化组合,并认识到该类喷反装置中,喉管喷嘴组合模式对吸水效率的影响最大,而流量参数m、间距S对吸水效率的影响较小;喷嘴喷速大于40 m/s时,其吸水效率急剧下降。On the analogy of relevant design, a preliminary design and experimental prototype of jet-type reverse circulation tool was completed, which could be used for horizontal hole. Based on structural optimization experiments and researches, a series of optimized combinations of key components were derived, which were appropriate to in-situ conditions. According to experiment results, some conclusions were drawn as follows： the water absorption rate was most influenced by the mode composed of jet tube and jet nozzle and little influenced by flow parameter m and span S; and when the jetting rate exceeded 40m/s, the water absorption rate decreased sharply.

关 键 词：喷反装置 结构优化 水平孔 吸水效率 

分 类 号：P634[天文地球—地质矿产勘探]