武汉莫诺来电洽谈「多图」 [螺耐斯)]"内容: 管柱脱落是自由式管柱结构经常发生的一种现象,这是由于正常运转时转子旋转对定子产生的摩擦扭矩方向实际上是定子及油管的连接螺纹的卸扣方向,如果摩擦力矩大于油管扣的上扣扭矩,油管就脱扣。当尾管很重时,还会出现螺纹掳扣。当管柱脱落时,通过作业重新连接好就能恢复生产。如果未发生螺纹掳扣,可以采取对扣方式打捞,如果发生掳扣,必须下打捞工具进行打捞。Column shedding is a common phenomenon of free tube structure, which is due to the direction of rotation of the friction torque generated by the stator rotor during normal operation is actually a stator and tubing connection1 screw shackle direction, if the friction torque is greater than the pipe le on torque, oil pipe tripping. When the tail pipe is very heavy, there will also be a thread caption. When the pipe column falls off, the production can be restored by reconnecting the work. If the le is not threaded, it can be salvaged by the way of the le. If the le occurs, the fishing tool must be salvaged.
D、限位器D, limiting device限位器为一个底部带限位板和流通通道的短节,接在定子的尾部,其作用是施工作业时给转子限位以防止下入过头而失去作用和杆柱脱落时防止杆柱掉入井底。The limiting device is a short section with bottom limit plate and distribution channel, which is connected to the tail of the stator. Its function is to limit the rotor to the rotor during ctruction1, so as to prevent it from falling into the overhead and lose its function and prevent the rod from falling into the bottom when the rod string falls off.
单螺杆泵工作时,两端分别作用着液体的吸排压力,因此对螺杆要产生轴向推力。螺杆泵厂家建议对于压差小于10千克力/cm2的小型泵,可以采用止推轴承。此外,还通过主动螺杆的中央油孔将高压油引入各螺杆轴套的底部,从而在螺杆下端产生一个与轴向推力方向相反的平衡推力。
单螺杆泵和其它容积泵一样,当泵的排出口完全封闭时,泵内的压力就会上升到使泵损坏或使电动机过载的危险程度。所以,螺杆泵厂家建议使用时在泵的吸排口处,就必须设置安全阀。
单螺杆泵有以下优点:
1)因为泵内的回转部件惯性力较低,故可使用很高的转速;
2)结构坚实,安装保养容易;
3)单螺杆泵的压力和流量范围宽阔。压力约在3.4-340千克力/cm2,流量可达18600cm3/分;
4)单螺杆泵的吸入性能好,具有自吸能力;
5)与其它回转泵相比,对进入的气体和污物不太敏感;
6)流量均匀连续,振动小,噪音低;
7)单螺杆泵的运送液体的种类和粘度范围宽广。
单螺杆泵的缺点是,螺杆的加工和装配要求较高;泵的性能对液体的粘度变化比较敏感。
以上信息由专业从事莫诺的螺耐斯于2024/12/17 16:04:08发布
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