Low-lift flame-proof submerged motor

Abstract

The invention relates to a low-lift flame-proof submerged motor belonging to the technical field of motors and providing a low-lift flame-proof submerged motor for extending the application range of an axial flow type submerged pump. The low-lift flame-proof submerged motor comprises an upper end cover, an upper bearing, a stator, a rotor, a shaft, a cooling water hood, a lower bearing, a lower end cover and a casing. The upper end cover is arranged at the upper end of the casing; the upper bearing is positioned below the upper end cover and is sleeved with one end of the shaft together; the other end of the shaft is sleeved with the lower bearing together; the lower end cover is positioned below the lower bearing; the rotor is arranged on the shaft; the stator is arranged inside the casing; the cooling water hood is arranged outside the casing; and the casing is internally provided with an upper shaft temperature sensor, a submersed sensor, a winding temperature sensor, a leakage sensor, a temperature sensor and a lower shaft temperature sensor; and the invention is applied to the technical field of submerged three-phase asynchronous motors.

Description

technical field [0001] The invention relates to a low-lift flameproof submersible motor, which belongs to the technical field of electric motors. Background technique [0002] The submersible sewage pump is developed on the basis of introducing foreign advanced technology and adopting an excellent hydraulic model. This series of products is mainly suitable for waste water with solid particles and various long fibers on the conveyor belt, urban domestic sewage and rainwater, including raw water Transportation, aquaculture and irrigation. In recent years, with the promotion of the application range of submersible sewage pumps, many chemical, coal mines, steel plants and other places with explosion-proof requirements have put forward explosion-proof requirements for such pumps, and they are matched with explosion-proof submersible sewage pumps. The special submersible three-phase asynchronous motor must also be flameproof. At present, the underwater operation stability of this ...

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Problems solved by technology

[0002] The submersible sewage pump is developed on the basis of introducing foreign advanced technology and adopting an excellent hydraulic model. This series of products is mainly suitable for waste water with solid particles and various long fibers on the conveyor belt, urban domestic sewage and rainwater, including raw water Transportation, aquaculture and irrigation. In recent years, with the promotion of the scope of application of submersible sewage pumps, many chemical, coal mines, steel plants and other places with explosion-proof requirements have put forward explosion-proof requirements for such pumps, and they are matched with explosion-proof submersible sewage pumps. The submersible three-phase asynchronous motor must also be flameproof. The underwater operation stability of this type of motor on the market is poor. The motor and the water pump are connected by a long shaft transmission part, so the reliability of operation is not high.

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