Pipeline pump noise is very big & how to solve it ?
27 Mon 2023

Pipeline pump noise is very big & how to solve it ?
Pipeline pump belongs to a relatively quiet product in pump products, but because of some conditions and problems, the noise of pipeline pump will increase, and sometimes the noise is unbearable. The noise of pipeline pump is also a common situation that users respond to us in the process of use. We have studied their specific situation and passed the investigation. The main reason is still caused by the following reasons.

1, improper device caused water pump noise
In the device, we pay attention to a flat two stable three robust, flat refers to the level, when the pump device must adhere to the level of the foot (under special circumstances is a different matter) can not tilt, stability refers to must be stable, can not slack shake. Robust means that the base of the device must be robust solid stable, can not land on the other side of the air. In addition, in order to avoid noise caused by resonance, the bottom foot of the pipeline pump should be installed with vibration avoidance pad, and the import and export should be installed with expansion joint (soft joint). Why would you do that? Because the pump in the work of the motor has a certain noise and accompanied by slight vibration, if not installed vibration pad, there will be a chain reaction between the pump and the base, resonance to strengthen the vibration. If the inlet and outlet are not installed with expansion joints, the vibration and noise of the motor will be transmitted to the pipeline. The pipeline is like a consensus cavity, which will further strengthen the vibration and noise. Together in the pipeline water resistance and pressure under the action of the pipeline will also make sound and vibration, so it is necessary to install expansion joint to eliminate the resonance and consensus between the pipeline and the pump.

2. The noise caused by the unbalanced impeller of the pump
Some pumps use a long time in the impeller at work or is inhaled into the pump chamber debris injury or other reasons cause the impeller to lose balance, left light right heavy, anticlimactic, at this time in the condition of high speed motor work will lead to motor bearing strength of the weight of the different resulting in noise, Together with this motor shaft will also be affected by the unbalanced impeller to different cores, resulting in noise.

3. Noise caused by bearing damage
Some customers will pump the device in the outdoor, and without any cover under the condition of use, rain will be inhaled from the motor hood by the wind blade, if the intrusion into the motor back cover bearing indoor will make the bearing oxidation and rust, bearing ball is no longer smooth, will make mechanical noise. If installed in the indoor situation, this problem will not appear, but there will be another situation, if the mechanical seal damage is not replaced in time, still use, there is no water stop, the mechanical seal loses the sealing effect, the pump work in the pump chamber pressure leads to the pump body water spray out in a short time, the retaining ring on the motor shaft can maintain the motor bearing is not invaded by water, But the water is spraying more and more and invading the bearing chamber will damage the bearing as well. The sound of a working pump can be as loud as a train running over the tracks.


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