When the screw pump long-term disabled, if long-term fixed deflection screw pump screw part long downward will be permanent, so the ring into the dynamic balance, gap and spiral part between the screw and the pump tank so that every period of time should be adverse effects spiral rotation angle to offset to a the direction of deflection caused by. You should try to make the water pump in a spiral or standard standard design prescribed above, pumping quantity of screw pump at design flow. If it's below the standard point, it's only a few centimeters low. Pumping quantity of screw pump will decline a lot. The spiral parts of the screw pump mostly work outdoors. Before the spiral pump is started in the northern winter, it is necessary to check whether the ice in the water pool and the spiral part are frozen together with the pump tank. To remove the ice before the start, so as not to damage the drive blade device or screw pump. Because the spiral pump is usually installed at 30 degrees, the drive motor and the reducer must also be tilted, which will affect the lubrication effect of the reducer. Therefore, when adding oil to the reducer, the oil level should be higher than that of the normal oil level. When the oil drain is used, such as pump and pump station design calculation, if the lowest position does not have the oil drain port, we should try to extract residual oil.
It is the key to ensure the efficient operation of the screw pump to ensure that the clearance between the blade and the pump slot of the screw pump is accurate and uniform. We should regularly measure whether the clearance between the screw pump and the pump slot in operation is between 5-8mm, and adjust it to a uniform and accurate degree. Abnormal changes in the sound of juice and screw pump during inspection. When the upper bearing fails, it will also produce abnormal noises, and the bearing shell will be heated. We should also pay attention to inspection.
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