武汉莫诺转子按需定制

管柱脱落的故障现象是：运行电流很低，基本上是电机的空载电流，除了有一股一股的气外，井口基本上无产液，正发循环时油套连通。The failure phenomenon of the string is: the running current is very low, basically the motor's no load current. Besides the gas with a single strand of gas, the wellhead basically has no liquid production, and the oil sleeve is connected when circulating.减少管柱脱落的措施有：将油管上扣扭矩由原来的值提高到值；采用油管螺纹垫片；定子上的装卸短节采用防松螺纹连接；采用油管锚或张力封隔器固定螺杆泵。The measures to reduce the falling off of the pipe string are as follows: increase the torque from the original value to the maximum value; use the oil pipe screw gasket; the loading and unloading joint on the stator is connected by loosening screw thread; and use the oil pipe anchor or tension packer to fix the screw pump.


Ａ、定子A, stator定子是螺杆泵的一个关键部件，并直接影响到井下机组的寿命。定子制造质量越高，井下机组的寿命就越长。定子的作用就是提供转子工作和液体抽汲的螺旋腔，其结构非常简单，由钢制外壳和塑料／橡胶衬套内腔有双螺旋、三螺旋、四螺旋甚至五螺旋、六螺旋，在相同尺寸下，螺旋数越多，泵的排量越高。The stator is a key component of the screw pump, which directly affects the life of the downhole unit. The higher the quality of the stator, the longer the life of the downhole unit. The role is to provide a rotor stator and liquid pumping spiral c***ity drain, the structure is very simple, a steel shell and a plastic / rubber bushing c***ity with double helix, three helix, four or even five, six spiral helical spiral, in the same size, the number of spiral, the displacement of the pump is high.


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.


G型单螺杆泵型号在加热炉燃烧系统中的应用 　　目前,有些中小型钢铁厂和其它冶金加工厂在没有气体燃料(如煤气)的条件下,仍在使用液体燃料。而液体燃料为广泛采用的是重油。比如加热炉燃烧系统在重油的输送及喷燃过程中,选择合适的泵机组对炉子的正常工作很重要。由于重油的正常工作粘度一般都比较高(80 ℃时在50×102-6m2/s以上) ,而且随着温度的变化,其粘度的变化比较大。这就要求我们应该选择合适的泵种以适应这些介质的输送,使之稳定而无故障地运行。尤其是重油的喷燃,泵机组输送压力的恒定很重要。根据调查发现,目前采用外啮合齿轮泵(称齿轮泵)的用户仍居多。其实在这些系统中如果采用G型单螺杆泵则是有更多优点。