An ultra-short cartridge mechanical seal and its working method

Abstract

The invention relates to a ultrashort packing machine seal and a working method thereof. The ultrashort packing machine seal comprises a static ring, a movable ring, a clamping ring and a flange; a convex edge is peripherally arranged on the outer wall of the static ring; the lower side of the convex edge of the static ring is tightly matched with the inner wall of the flange; multiple dowel pins are arranged between the convex edge and the flange; a spring is arranged between the lower end surface of the convex edge of the static ring and the flange for providing compensation power to the static ring; the upper end surface of the static ring is tightly matched with the lower end surface of the movable ring; the clamping ring is fixedly connected with the movable ring; the outer wall of the clamping ring is tightly matched with the inner wall of the movable ring; a groove is peripherally formed in the inner wall of the clamping ring, so that a first O-shaped sealing ring between the clamping ring and a rotating shaft to be sealed is arranged in the groove to achieve a better sealing effect; the clamping ring is directly contacted with the rotating shaft to prevent use of a shaft sleeve; the static ring is arranged in the flange; and the end surface of the flange is matched with the static ring to prevent use of a static ring mounting base and a movable ring mounting base, so that the structure is simple, and the axial length of the machine seal is effectively shortened.

Description

technical field [0001] The invention relates to the technical field of mechanical sealing equipment, in particular to an ultra-short cartridge mechanical seal and a working method thereof. Background technique [0002] Mechanical seals are one of the basic components of machinery with precision and complex structures, and are key components of various pumps, reaction synthesis kettles, turbo compressors, submersible motors and other equipment. Since the mechanical seal is a precision component, it has high technical requirements for the installers. Although the cost of using the bulk mechanical seal is low, it is prone to the problem of improper installation during installation, which seriously affects the service life of the mechanical seal structure. When the installation error is large Sometimes it will shorten the service life of the mechanical seal and even cause damage to the mechanical seal. The cartridge type mechanical seal is easy to install, the positioning bolt ...

AI Technical Summary

Problems solved by technology

Since the mechanical seal is a precision component, it has high technical requirements for the installers. Although the cost of using the bulk mechanical seal is low, it is prone to the problem of improper installation during installation, which seriously affects the service life of the mechanical seal structure. When the installation error is large It will shorten the service life of the mechanical seal and even cause damage to the mechanical seal

The cartridge type mechanical seal is easy to install, the positioning bolt can be used after removing the limit block, the spring compression amount is determined in advance, and the seal end face is protected without opening, which eliminates the requirement for the professional background of the on-site installer, so the cartridge type Mechanical seal is the mainstream form of mechanical seal at present; the existing cartridge mechanical seal has complex structure and long axial dimension

Images