3分钟前 武汉莫诺螺杆泵配件即时留言「螺耐斯」[螺耐斯10e361c]内容: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 co
nnected 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.
E、抽油杆扶正器E, sucker rod centralizer抽油杆扶正器由心轴和扶正筒组成,它接在两根抽油杆之间,被卡在两个抽油杆接箍之间。心轴也就是一要极短的抽油杆短节。扶正筒是一个内孔比心轴大1MM左右的空心塑料筒,外部有四个略比油管内径小的扶正翼,采取浇注成型。扶正筒可以围绕心轴转动,防止抽油杆旋转时与内壁接触而磨蚀油管,又可以让流体通过。The sucker rod centralizer is comed of the heart shaft and the upright cylinder, which is co
nnected between the two sucker rods and is stuck between the two sucker rod hoops. The axis of the heart is also an extremely short rod short section. The centering cylinder is a hollow plastic tube inner hole Bixin shaft around 1MM, external four slightly smaller than the diameter of the tubing centralizer wing, adopt casting. The centralizer can revolve around the axis to prevent the sucker rod from touching the inner wall when it rotates, and it can also let the fluid pass through.
由于吸液管道或者轴封的地方有泄漏会导致空气被吸入到单螺杆泵里面,这样单螺杆泵就会处于吸空气的状态,进口管道不能形成负压所以螺杆泵吸不上液体。处理方法是检查、修理管道,排除杂物,调整更换轴封。 单螺杆泵电机反转也会导致螺杆泵吸不上液体的现象出现,调整电机的极性接头就可以了。 抽吸的矿浆太干,或在半干状态下运转也是螺杆泵吸不上液体的原因,这种情况只能稀释或向进料口加入充足的矿浆。 输送的液体粘度太高也会导致螺杆泵吸不上液体,如果是液体粘度太高的问题只能降低螺杆泵的转速然后提高液体的温度后使其粘度降低或者改用立式螺杆泵。
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。