Shielding motor for pump capable of transporting liquid containing particles

Abstract

The invention discloses a shielding motor for a pump capable of transporting liquid containing particles. The shielding motor for the pump comprises a motor cavity, a pump cavity and negative pressuresuction devices, wherein the output end of the motor cavity is connected with the pump cavity, the negative pressure suction devices comprise the first negative pressure suction device and the secondnegative pressure suction device, and the first negative pressure suction device and the second negative pressure suction device are arranged at the top end and the bottom end of the pump cavity respectively; and the shielding motor further comprises a cooling device, and one end of the cooling device is connected with the motor cavity. According to the shielding motor for the pump capable of transporting the liquid containing the particles, extraction and discharge operations of liquid can be effectively realized, meanwhile, the motor can be applied to the liquid medium containing the particles which cannot be conveyed by a common shielding pump, and the practicability is better; and the structure is reasonable in design, the influence of the particles on the whole assembly can be reduced in the transportation process, the sealing performance of the motor cavity and the pump cavity is ensured, the cooling effect of the motor cavity can be achieved, and higher practicability is achieved.

Description

technical field [0001] The invention relates to the technical field of canned pumps, in particular to a canned pump motor capable of transporting liquid containing particles. Background technique [0002] The canned pump is a non-leakage pump composed of a canned motor and a pump. It is mainly composed of pump body, impeller, stator, rotor, front and rear bearings, thrust plate and other components. The stator and the rotor are separated by non-magnetic corrosion-resistant thin-walled sleeves, and the rotor is supported by the front and rear bearings and immersed in the conveying medium, so no type of dynamic seal is required to prevent the outward leakage of the conveyed medium. In general, canned pumps are centrifugal sealless pumps. [0003] The canned pump has absolutely no leakage. Under the condition of negative pressure inside the pump, the outside gas will not be sucked in. It is especially suitable for vacuum system operation; at the same time, it is suitable for h...

AI Technical Summary

Problems solved by technology

[0004] In today's market, canned pumps are not suitable for conveying media containing particles, which will affect the operation of the bearings in the canned pump, block the shielding gap, affect the cooling and lubrication of the pump, and cause the graphite bearing and motor to burn out, which gives we are greatly inconvenienced

Images