Vertical shield pump

Abstract

The invention relates to the field of liquid transfer pump products, in particular to a vertical shield pump which essentially consists of a water pump and a canned motor. The water pump comprises an impeller, a pump body and a sealing ring. The canned motor comprises a stator, a rotor, shielding sleeves, a bearing support, a bearing, a cooling pipe and a deflation valve. The vertical shield pump is characterized in that the canned motor adopts an insulated winding; the rotor consists of a stainless steel shaft and a cast aluminum rotor; and the inner diameter of the stator and the surface of the rotor are respectively provided with the stainless steel shield sleeve. The vertical shield pump has the beneficial effects that a pump-motor integral structure is compact; the vertical shield pump has an external cyclic cooling system; when the vertical shield pump transfers high temperature and corrosion medium liquid containing granules, the rotor and the stator are not eroded easily, and medium can not be leaked; the vertical shield pump has the characteristics of small size, nice appearance, stable operation, convenient installation, no noise and the like; and the vertical shield pump meets the increasing requirement of the user on the stability of working environment and the environmental protection at utmost.

Description

[technical field] [0001] The invention relates to the field of liquid conveying pumps, in particular to a vertical canned pump. [Background technique] [0002] Canned motors are widely used in pumping equipment that transports media that cannot be leaked. At present, the shielded motor pump technology for conveying clean media at normal temperature and pressure is relatively mature. For the delivery of high-temperature and corrosive media, the existing canned pumps still have many shortcomings: because the canned pump transports high-temperature and corrosive medium liquids, the rotor and stator that are in direct contact with the corrosive medium are easily corroded, and the working time of the canned pump If the temperature of the pump is too high, it is easy to cause the canned pump to break down, which greatly shortens the service life of the canned pump; in addition, the overall sealing performance of the water pump cannot meet the canned pump working under such enviro...

AI Technical Summary

Problems solved by technology

For the delivery of high-temperature and corrosive media, the existing canned pumps still have many shortcomings: because the canned pump transports high-temperature and corrosive medium liquids, the rotor and stator that are in direct contact with the corrosive medium are easily corroded, and the working time of the canned pump If the temperature of the pump is too high, it is easy to cause the canned pump to fail, which greatly shortens the service life of the canned pump; in addition, the overall sealing performance of the pump cannot meet the requirements of the canned pump working under such environmental conditions.

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