Protecting structure of pump sealing system

Abstract

The invention relates to a protecting structure of a pump sealing system. The protecting structure is assembled on a middle suction type pump. The middle suction type pump comprises a motor, a pump body and the sealing system arranged between the motor and the pump body. According to the design, one protecting structure is arranged on a sealing support outlet, a main body of the protecting structure is a protecting cover, a protecting opening of the protecting cover is installed in a sealing cover in a buckled manner, and the protecting cover and a sealing support are assembled together. Centrifugal blades and flow guide blades are installed on the protecting cover. The centrifugal blades are arranged on the outer side of the protecting opening of the protecting cover in a ring-shaped arraying manner. The flow guide blades are uniformly arranged on the outer surface of a conical slope of the protecting cover. The protecting structure obstructs fluid media and impurity, and reliabilityof the pump sealing system is guaranteed. The blade form of a centrifugal pump impeller is utilized by the flow guide blades, thus the motion direction of the fluid media conforms to the direction ofan impeller inlet, impact on the impeller and the protecting cover by the fluid media and the impurity attached to the fluid media is reduced, the life of the impeller is prolonged, and the energy loss is reduced.

Description

technical field [0001] The invention relates to a protection structure of a pump, in particular to a protection structure of a pump sealing system, which is mainly used in a pump for conveying fluid medium with more solid impurities. Background technique [0002] Pump products are one of the important general-purpose mechanical products in various fields of the national economy, which are mainly composed of two parts: the motor and the pump body. The pump cavity is responsible for fluid delivery, while the motor is responsible for providing power through the shaft. The inner cavity of the motor needs to be absolutely waterproof, so the connection between the pump body and the motor must be equipped with a sealing system that can be absolutely waterproof, and a sealing system determines the service life and failure rate of the pump to a large extent, so The protection of the sealing system is particularly important. [0003] At present, there are many kinds of protective st...

AI Technical Summary

Problems solved by technology

The fluid medium enters from the fluid medium inlet and directly contacts the surface of the rotating shaft and the sealing cover. After a long time of work, the surface of the rotating shaft and the sealing cover will be worn and corroded, resulting in a large gap between the sealing cover and the rotating shaft, and then the fluid medium enters The inner chamber of the seal bracket wears and corrodes the seal ring, which eventually leads to damage and failure of the seal system, and the pump stops working

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