[[TitleIndustry]]

The development direction of mechanical seals

Date:Jan 15, 2021

1. Continuous innovation in sealing theory, technology and products. New technologies, concepts, structures, materials, processes and standards continue to emerge; A large number of high parameters (e. G. High pressure, high speed, high temperature, large diameter), High Performance (e. G. Dry operation, zero leakage, zero loss, no oil lubrication, sealing slurry) and high level (e. G. PU value, large parts, condition monitoring) sealing products; Failure mechanism (e. G. Blisters, thermal cracking, bubbles, etc.). Research and application of rubber seal bubble expansion and aging, failure analysis (frequent leakage problems, cavitation wear failure, failure reliability analysis, seal failure) and failure monitoring (e. G. Liquid film, friction state and phase state).


2. Seal technology has shifted from empirical design to theoretical expert system design. The verification design (P or PU value) is a traditional design method. It determines the geometric parameters of the seal and the specific pressure of the spring according to the verification knowledge, and designs the contact pressure of the end face of the seal in turn, linear speed, friction power, impact force, and determine the corresponding auxiliary system; Computer-aided design is mainly limited to the drawing of sealing parts. Among them, the theoretical design of the expert room (P-U-T-H-T) is based on the computer as a tool, according to the specific process conditions, the use of perfect professional database and professional software, the sealing performance analysis, dynamic simulation, structural optimization, parametric design, as far as possible to optimize the practical performance of the design stage, to achieve the design of reasonable, fast, efficient, to meet the needs of professional, large-scale production.


3. Continuously expand the scope of use of mechanical seals. Mechanical seals not only use pump valve type seals, but also use reactors, turret towers, agitators, centrifuges and other process equipment; Scope of application: petroleum, chemical, papermaking, automobiles, ships, home appliances, machinery manufacturing, metallurgy, mining, atomic energy industry, aerospace, military industry, electric power, medicine, food processing and other important industrial fields; Working conditions parameters: High pressure, high speed, high PU value, high temperature, low temperature, etc.

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