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Analysis of the specific reasons why the shield pump does not produce water
2023/02/16
Shield pump is a seal-free pump, in the use of the process will inevitably have some problems, not water is a relatively common problem, before repairing the first to know the causes of the equipment does not produce water.
1, the first thing to consider is the equipment is blocked by debris inlet pipe leads to the case of no water.
2, the pump cavity inside the inhalation of debris damage, such as some hard rocks and other blockage of the impeller leads to no suction equipment.
3, there is another is the shield pump bottom valve into the water is not deep enough to cause the equipment inlet pipe in the inhalation of a large amount of air resulting in the case of no water.
4、The temperature of the conveyed liquid is too high and the liquid contains a large amount of steam, resulting in gas discharge and cavitation.
5, before maintenance, also consider whether the inlet pipe joints due to the long aging of the poor sealing phenomenon, resulting in the equipment in the operation of the inhalation of a large amount of air and no water.
6, the equipment is not loaded with a sufficient amount of water before starting, so sometimes it seems that the water has overflowed from the bleed hole, but did not turn the pump shaft to completely exhaust the air resulting in air residue in the inlet pipe.
7, some users due to the original motor damage on the random with another motor driven, resulting in a small flow, low head, no water problems.
If in the process of using the shield pump does not encounter the water situation can be in accordance with the above approach to exclude treatment, if it can not be solved can find maintenance personnel to carry out repairs.
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