Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for realizing zero leakage and non-contact mechanical seal

A mechanical seal and zero-leakage technology, which is applied to engine seals, mechanical equipment, engine components, etc., can solve the problems of general load capacity, failure to achieve zero leakage, lack of upstream pumping capacity, etc., to prolong service life and enhance operation The effect of stability

Inactive Publication Date: 2005-09-14
JIANGSU UNIV
View PDF4 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a new type of non-contact method that enables the mechanical seal to achieve zero leakage in order to avoid the above-mentioned deficiencies in the prior art. It is mainly aimed at the problems existing in the existing hydrodynamic mechanical seal: or Lack of upstream pumping capacity (cannot achieve zero leakage), or the hydrodynamic pressure effect is not prominent (load capacity is average), and a more ideal design can be designed to prevent leakage, improve load capacity, and improve sealing stability at the same time. Zero leakage non-contact mechanical seal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for realizing zero leakage and non-contact mechanical seal
  • Method for realizing zero leakage and non-contact mechanical seal
  • Method for realizing zero leakage and non-contact mechanical seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention can adopt the laser processing method to realize the design scheme of the sealing ring surface. Laser processing is flexible and easy to control, and can realize the processing of the desired shape.

[0020] Embodiment A micro-lubrication chamber (1) evenly distributed in the non-pumping groove area and a pumping groove (2) in the middle of the sealing ring are provided on the dynamic ring of the mechanical seal, see figure 1 . The opening of lubricating chamber (1) and pumping groove (2) can be divided into two steps. The first step is to set microscopic lubricating chambers (1) in all areas of the sealing ring. The diameter d of these lubricating chambers (1) is 20-80um, the depth h1 is: 5-20um, and the distance L between the lubricating chambers (1) is 100~300um, such as Figure 7 . The second step is to set up a pumping groove (2) in the middle area of ​​the sealing ring. The depth h2 of the pumping groove (2) is slightly greater than the d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Depthaaaaaaaaaa
Login to View More

Abstract

The invention relates supplies a method to realize zero leakage and non-contact for mechanism sealing. It opens microcosmic lubricating rooms and macrocosm pump feeding slots on the active circle and the static circle of the mechanism sealing. The combining of the two shapes make the liquid dynamical effect and upstream pump feeding effect more signalization. And the zero leakage and non-contact for mechanism sealing are realized. The method is suited for any liquid medium mechanism sealing, especially high parameter mechanism sealing.

Description

Technical field: [0001] The invention relates to the technical field of mechanical seals, in particular to non-contact mechanical seals, in particular to a non-contact method for realizing zero leakage of mechanical seals. Background technique: [0002] As the most common axial end face sealing device of rotating shaft, mechanical seal has been widely used in petrochemical, aerospace and other fields. In particular, the non-contact mechanical seal proposed in the 1980s and 1990s can be applied to high-parameter (high pressure, high speed, high temperature) working conditions. Among them, dry-running non-contact gas seals for gas media have been rapidly applied to industrial production due to their good performance and working stability. However, non-contact mechanical seals for liquid media have not solved the two core problems of "reducing leakage" and "improving the bearing capacity of fluid film", so all kinds of non-contact mechanical seals so far have different defects...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16J15/16
CPCF16J15/3412
Inventor 符永宏陈志焕袁寿其
Owner JIANGSU UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com