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Guangyi brand GD pipeline centrifugal pump common fault maintenance

发布时间:2020-12-31 17:21:00 点击:

Guangyi brand GD pipeline centrifugal pump common fault maintenance

Pipeline pump in industrial production and agriculture have been widely used, pipeline centrifugal pump has stable performance, small volume, simple structure, easy to operate, fewer faults, long service life, low price and other outstanding advantages, but as long as the machinery will have some faults.

(GD100-19 type water pump)


First, the pipeline pump before starting, water is insufficient or vacuum pump did not pump out the air in the pump.In this case, the filling time can be extended, the amount of water can be increased, and the vacuum pump can continue to pump air.If the water diversion is still full, air pumping is not net, it is necessary to consider whether the water inlet pipe leakage, bottom valve rust dead, whether the stuffing box leakage.Then, fix or replace each problem that has been detected.

(GD65-19 type water pump)


In the second case, the assembly head of the pipeline pump exceeds the rated head of the pump.The installation height of the water pump (refers to the vertical distance between the center line of the pump shaft and the moving water level of the well) can be appropriately reduced or the length of the suction pipe can be shortened. The diameter of the water suction pipe can be appropriately increased (the diameter of the water suction pipe is one stage larger than the diameter of the water inlet of the pump) to reduce the assembly head of the water pump and improve the water suction height of the pump.

The third kind of situation, pipe pump inlet pipe leakage, resulting in lax seal, diversion water irrigation discontent, air pumping is not net.Use illumination method to check, if the pipe wall leakage, repair the plug;If it is a leak at the joint, tighten it with a wrench or replace the leather pad.

Fourth, the pipeline pump impeller reversal.The rotation direction of the pump can be changed by changing the rotation direction of the power machine.If the motor is used as the power, it should adjust the wiring phase sequence of the motor to change its steering;If the internal combustion engine is used as power, it should adopt the method of cross transmission belt for adjustment.

Fifth, the pipe pump suction pipe into the water depth is not enough.First of all, measure the depth of the water inlet of the pipe pump into the water. If it is too shallow, take measures such as reducing the installation height of the water pump or increasing the length of the water inlet of the centrifugal pump to ensure that the depth of the water inlet of the pump is less than 0.5 meters below the water surface.

In the sixth case, the inlet or impeller passage of the pipeline pump is blocked.First stop to check out the specific plug site, and then clear the plug, finally according to the type of plug (sediment, debris, etc.) can be taken respectively to clean the well (air compressor or other equipment is recommended), set up the sewage barrier and other measures to improve the quality of water, prevent the blockage phenomenon occurs again.

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