In this paper,an automated tripping system for downhole pipe string was put forward,which includes the tractor hoist,the derrick,the hydraulic tongs,the movable casing elevator,the fixing spider,the vertical pipe rack and the controlling system.
提出了一种自动起下管柱作业系统,主要包括通井机、井架、液压钳、筒式吊卡、卡瓦支座、立式排管架和控制系统等,支座卡瓦为弹性体微条嵌入式结构,筒式吊卡能自动卡入和松开管柱接箍,排管架可实现管柱的立式排放,控制系统协调各部分的工作。
Based on actual installation experience,noticeable items and prestress settings for erection of anchor bolts,base plates and supporting legs of turbines are described,focusing on analysis of thread seizing of supporting bolts.
着重对支撑螺杆螺纹卡涩现象进行了分析,其原因是螺杆中心与基础螺孔中心不重合,安装中必须缓慢拧入。
justable limit snap thread gauge
可调式极限螺纹卡规
NPT tapered tube thread gauges
NPT锥管螺纹量规
Gauges for sealing tube threads
用螺纹密封的管螺纹量规
Gauges for nonsealing tube threads
非螺纹密封的管螺纹量规
large-size precision thread ring and plug gauge
大型精密螺纹环塞规
unified miniature screw thread gauge
统一标准小直径螺纹规
gauge for checking gear wheels or screw threads
检查齿轮或螺纹用量规
The common thread gauges including ring gauges and plug gauges are used to calibrate thread work pieces with GB and ISO standards.
普通螺纹量规(螺纹环规、螺纹塞规)适用于检测符合国家标准及国际标准的螺纹制件。
Male connector--Assembly
GB/T3734.1-1983卡套式锥螺纹直通管接头
Male connector--Body
GB/T3734.2-1983卡套式锥螺纹直通接头体
Male connector for butt joints--Body
GB/T3755.2-1983卡套式锥螺纹对接直通接头体
Male elbow for butt joints--Assembly
GB/T3758.1-1983卡套式锥螺纹对接直角管接头
Male elbow for butt joints--Body
GB/T3758.2-1983卡套式锥螺纹对接直角接头体
Male elbow--Body
GB/T3739.2-1983卡套式锥螺纹直角接头体
Male elbow--Assembly
GB/T3739.1-1983卡套式锥螺纹直角管接头
Male run tee--Body
GB/T3744.2-1983卡套式锥螺纹直角三通接头体
Male run tee--Assembly
GB/T3744.1-1983卡套式锥螺纹直角三通管接头
Male branch tee-Assembly
GB/T3742.1-1983卡套式锥螺纹三通管接头