[Asia Fluid Network News] Shielded pump is characterized by fully enclosed, high safety, compact footprint, smooth operation, low noise, without lubricating oil. These advantages make it widely used in ground source heat pump air conditioning circulating water system, heating and heating circulating water system, tap water booster system, fire water booster system. As its user base continues to grow, more and more people want to know what shielded pumps work. The following will shield the pump to do a specific analysis of the working principle. Shielding pump works What is the shield pump is a non-sealed pump, pump and drive motor are sealed in a pumped medium filled pressure vessel, the pressure vessel is only static seal, and by a wire group to provide rotation Magnetic field and drive the rotor. Common centrifugal pump drive is through the coupling of the pump impeller shaft and the electric shaft connected to the impeller and the motor together to rotate work, and the shield pump is a non-sealed pump, pump and drive motor are sealed in a Pumped medium filled pressure vessel, the pressure vessel is only static seal, and by a wire group to provide a rotating magnetic field and drive the rotor. This kind of structure has canceled the rotary shaft sealing device that the traditional centrifugal pump has, therefore can be completely leakless. Shield pump to pump and motor together, the motor rotor and pump impeller fixed on the same axis, the shield sleeve motor will be separated from the stator and rotor, the rotor is transported medium, the power through the stator field Pass to the rotor. In addition, the shield pump manufacturing is not complicated, the hydraulic end of the centrifugal pump can be used in accordance with the structure type and the relevant standard specifications to design and manufacture. The working principle of each device is the core of the device, and only mastered the working principle of the device so that the user can be more efficient when using the device. With the increasing use of shielded pumps, for example, it launched before the rocket spaceflight fuel refueling, nuclear power plants with nuclear-screened pumps, chemical and pharmaceutical industries with toxic and hazardous liquid transport, fire water pressurization system, tap water pressurization system It is of great significance to China's national defense and people's livelihood to speed up the research and promotion of such products due to the ever-increasing frequency of use in such fields as industry, aerospace and civil fields.
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