A general-purpose mechanical seal capable of dry grinding, anti-bonding, strong corrosion resistance and high temperature resistance

Abstract

The invention provides a general mechanical seal capable of dry grinding, anti-bonding, strong corrosion resistance and high temperature resistance, which relates to the technical field of mechanical seals, including: a static ring, a static sealing ring is sleeved on the static ring, and the reset part is a spring. The other end of the reset part is fixedly connected to the rear side of the inner end of the reciprocating sliding cavity; when the reset part is normally stretched, the front end of the limit post exceeds the sliding hole position; the present invention is hindered by the limit mechanism of the limit mechanism, and semi-mandatory staff Check according to the inspection items recorded on the compensation spring identification plate, static ring identification plate, dynamic ring identification plate and sealing ring identification plate and the relative parts, and confirm that it is correct by rotating the extrusion mechanism, so as to realize the storage of the limit mechanism , to ensure the quality of the mechanical seal to the greatest extent, and solve the problem that there is no identification structure in the inspection of the mechanical seal, and it is impossible to effectively judge whether the inspection of the mechanical seal is carried out according to the specified time, and there are application defects.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a general-purpose mechanical seal capable of dry grinding, anti-bonding, strong corrosion resistance and high temperature resistance. Background technique [0002] A mechanical seal refers to a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of auxiliary seals to keep fit and slide relative to each other. [0003] Mechanical seals have the following deficiencies in practical application: [0004] 1. When it is not started for a long time (about 20 days), the two friction pairs will be bonded together, resulting in the need for a super-powerful motor to open it forcibly, resulting in serious waste of electric energy and high cost. [0005] 2. When used in volatile, gasified, and highly ...

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Problems solved by technology

[0004] 1. When it is not started for a long time (about 20 days), its two friction pairs will be bonded together, resulting in the need for a super-powerful motor to be forced to open in the future, resulting in serious waste of electric energy and high cost

[0005] 2. When used in volatile, gasified, and highly corrosive liquids, the surface of the mechanical seal will be in the state of dry grinding or semi-dry grinding for a long time, and short-term dry grinding will cause rapid damage to the friction pair, thereby greatly The application range of the mechanical seal is greatly reduced;

[0006] 3. The mechanical seal needs to be inspected and maintained at regular intervals according to the regulations, but there is no identification structure for the inspection of the mechanical seal, and it is impossible to effectively judge whether there are application defects in the inspection of the mechanical seal according to the specified time

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