High-performance sealing shaft sleeve for spiral centrifugal pump

Abstract

A high-performance sealing shaft sleeve for a spiral centrifugal pump proposed by the present invention includes an inner shaft sleeve and an outer shaft sleeve, wherein a plurality of sealing rings are arranged in the inner shaft sleeve, the outer shaft sleeve comprises a sleeve and a connecting plate, and the inner shaft sleeve is provided with a plurality of sealing rings. The ring groove and the positioning plate, the ring plate is set on the casing, and the position groove is set on the connecting plate. The sealing ring includes the upper part of the seal, the middle part of the seal and the lower part of the seal. There are multiple elastic through holes, and the sealing structure is composed of two groups of airtight grooves and line sealing grooves. The invention has simple structure, reasonable design, stable axial direction of the shaft sleeve, and is not prone to skew. At the same time, the arrangement of elastic through holes can effectively improve the sealing ring. Elastic stress ensures the durability of the seal. The combination of line seal, face seal and air seal greatly improves the sealing effect and ensures the efficient and stable operation of the screw centrifugal pump.

Description

technical field [0001] The invention relates to a sealing shaft sleeve, in particular to a high-performance sealing shaft sleeve for a screw centrifugal pump. Background technique [0002] The screw centrifugal pump organically combines the volumetric inference function of the screw and the centrifugal effect of the blade through its special three-dimensional helical blade, so that the medium can obtain energy. Therefore, it has the characteristics of both volumetric pump and vane pump, and is the product of the combination of the two. [0003] The old-fashioned screw centrifugal pumps currently used have poor sealing effect on the shaft sleeve, and leakage is prone to occur at the joint between the pump shaft and the pump body. When leakage occurs, the exudate is easy to overflow to the surface of the screw centrifugal pump, which is very inconvenient to clean. , At the same time, the stability is insufficient, and it is prone to skewing, which affects the axial direction....

AI Technical Summary

Problems solved by technology

[0003] The old-fashioned screw centrifugal pumps currently used have poor sealing effect on the shaft sleeve, and leakage is prone to occur at the joint between the pump shaft and the pump body. When leakage occurs, the exudate is easy to overflow to the surface of the screw centrifugal pump, which is very inconvenient to clean. , at the same time, the stability is insufficient, and it is prone to skew, which affects the axial direction

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