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   齿轮齿条传动 在 石油天然气工业 分类中 的翻译结果: 查询用时:0.011秒
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?By using the FEM software,the paper calculates the contact stress and bending stress of the gear/rack drive equipment, which is one of the most important parts of the"ShengLi Operation NO3"jackup well workover platform's elevating system.On the base of the result,safety verifications and reliability analysis on the contact fatigue strength, bending fatigue strength and static bending strength have been finished.The conclusions presented in the paper is of importance to the design, manufacture...

?By using the FEM software,the paper calculates the contact stress and bending stress of the gear/rack drive equipment, which is one of the most important parts of the"ShengLi Operation NO3"jackup well workover platform's elevating system.On the base of the result,safety verifications and reliability analysis on the contact fatigue strength, bending fatigue strength and static bending strength have been finished.The conclusions presented in the paper is of importance to the design, manufacture and managements.

借助有限元分析软件,以"胜利作业三号"自升式修井平台起升系统的重要部件———齿轮齿条传动装置为研究对象,计算了起升系统在3种作业状态下的接触应力和弯曲应力,完成了传动装置的接触疲劳强度、弯曲疲劳强度以及弯曲静强度的安全性校核,并在此基础上进行了概率可靠性分析。计算分析得出的结论对平台的设计、制造和管理具有一定的指导意义。

To solve the problem of well fluid overflow in heavy oil thermal recovery wells, a novel downhole switch valve is developed. The characteristics of this valve lie in: (1) the valve ball can be opened and closed flexibly by using the rack-gear transmission mechanism, and the locking mechanism comprised of locking claw and spring and supporting ring is reliable and is not influenced by the pressure differential on the valve ball; (2) the metal seal of the valve ball surface seals well at high temperature and high...

To solve the problem of well fluid overflow in heavy oil thermal recovery wells, a novel downhole switch valve is developed. The characteristics of this valve lie in: (1) the valve ball can be opened and closed flexibly by using the rack-gear transmission mechanism, and the locking mechanism comprised of locking claw and spring and supporting ring is reliable and is not influenced by the pressure differential on the valve ball; (2) the metal seal of the valve ball surface seals well at high temperature and high pressure; (3) the valve ball has large internal diameter and provides a smooth flow passage for the well fluid; (4) the ball valve can be switched conveniently in pulling and lowering the string.

针对稠油注汽热采井中,压井液、洗井液进入地层使井下温度降低,造成转抽后开井困难;转抽前井内压力释放不彻底,易发生井喷或外溢等情况,研制了新型高温井井下控制阀。该阀的创新点:(1)采用齿轮齿条传动机构把管柱的直线运动变为阀球旋转运动,使阀球的开关更灵活,由锁爪、弹簧和支撑环组成的锁紧机构牢靠,不受阀球上下压差的影响;(2)球面金属密封在高温高压下密封性好;(3)阀球内通径大,打开后阀球通道与管柱同心,成为流体流动的畅通通道;(4)提放管柱开关球阀操作方便,可用于注汽热采井、直井、非热采井和大斜度井。

 
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