People call multi-stage centrifugal pump is the centrifugal pump is more than one impeller, the main purpose of the impeller is to improve water pressure. After waiting for gas to be aspirated from the vacuum pump, the entire working environment becomes vacuumed. Multistage pumps rely on volume changes in order to achieve aspiration, compression and venting, so he is a changeable centrifugal pump. Multistage centrifugal pump in the organization is the stator, bearing, rotor and shaft seal composed of four parts. The function of the multi-stage pump stator is the suction section, middle section, spit section and guide vane. Most multistage centrifugal pumps are used in many industries such as gardens, petroleum, chemical, light industry, medicine and foodstuffs. Most industrial uses in industry, such as normal vacuum filtration, vacuum water diversion, positive air feed, vacuum evaporation, Vacuum degassing, vacuum regurgitation and the like, except for some combustible gases or gases containing water. In the maintenance of multi-stage centrifugal pump in use, should be more than the main health, dust, dehumidification; before use to check whether the equipment is loose and aging phenomenon, and then see if the parts are flexible; to see if you need to join Lubricants, lubricants, pay attention to the method, do not get everywhere; unscrew the multi-stage pump water plug, and then into the liquid or slurry; twist to see if the motor steering is correct; in the use of a bearing problem Can not exceed thirty-five degrees, the maximum problem can not exceed eighty degrees. Finally, pay attention to the safety of the personnel, in the use of multi-stage centrifugal pump to properly check the device, so as to ensure the safety of personnel, regulate the operation of multi-stage centrifugal pump to make his life longer.
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