How to solve the vibration noise of diesel engine fire pump ?

We all know that compared with ordinary fire pumps, diesel engine fire pumps are extremely large in size and the composition of each component is slightly complicated. Obviously, there are more problems that may arise. “There is vibration, noise,” which is one of the common symptoms of diesel engine fire pumps.There is a saying called: the small hole does not make up, the big hole suffers. Although it is a common problem, it cannot be ignored. In order to avoid the emergence of bigger problems, The following are several solutions.There are 5 ways to always have one for you!

Check the grounding bolts of the pump set to see if there is any looseness or the foundation of the pump set is defective.Corresponding measures: Tighten the anchor bolts and reinforce the foundation.

Check the tachometer of the diesel engine fire pump to see if the turbine speed of the pump set exceeds the rated speed of the pump.Corresponding measures: Adjust the speed control system to make the pump work at its rated speed.

Check the noise of the diesel engine fire pump to see if there is gap dehydration in the suction pipe, causing a large amount of gas to be inhaled. Check the project to see if there is a vortex at the suction inlet, and if the submerged depth is too shallow.Corresponding measures: Adjust the height between the suction port and the liquid level.

Check if the pump is cavitation. If the flow rate is too high, the suction resistance will increase or the liquid operating temperature will rise, and pump erosion will occur, causing vibration noise.Corresponding measures: adjust the flow rate and liquid operating temperature.

Check the diesel engine fire pump impeller for damage or foreign matter inhalation.Corresponding measures: Replace damaged parts, adjust the centering and clearance of the coupling should not be too large.Compared with ordinary fire pumps, the vibration noise of diesel engine fire pumps will become more obvious and more frequent. For this reason, if you also purchase a diesel engine fire pump, or are preparing to start a diesel engine fire pump, then please understand more about the common faults of the diesel engine fire pump, so that there will be no trouble when there is a problem.

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