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Analysis of the shield pump can not idle the main reason
2023/02/16
The shielded pump connects the pump and the motor together, the rotor of the motor and the impeller of the pump are fixed on the same shaft, and the rotor and the stator of the motor are separated by using the shielding sleeve, the rotor runs in the medium being conveyed and its power is transmitted to the rotor through the stator magnetic field.
The equipment is well checked before operation and used only after it is determined to be correct. However, it is found that this type of pump cannot idle, why it cannot idle? The main reasons are as follows.
1, the shielded pump can not idle, because the pump's magnetic cylinder is composed of cooling medium, if idling will lead to magnetic lock.
2, most of the bearings of the rotor are made of carbide, lubricated by the medium, but the pump can not be lubricated.
3, after the equipment is emptied, there is no material to cool the pump, so there is a risk of burning the diaphragm directly.
4、The core components are the outer magnetic assembly and the inner magnetic assembly. If idle, the components will be demagnetized at high temperatures and the performance of the pump will be greatly reduced.
These are the reasons why the shielded pump can not be idle, if the equipment idle, then it is easy to damage the equipment as well as the equipment accessories, there is a corresponding danger, so we should do a good job of checking before use to make sure there is no idle.
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