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

Liquid mechanical seal internally provided with axial floating tray sleeve

A mechanical seal and tray technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve problems such as insufficient safety, and achieve the effect of dynamic observation

Pending Publication Date: 2019-07-19
ENVIRONMENTAL GASKET COMPANY
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to solve the problem of insufficient safety in the existing mechanical seal technology for liquids, the present invention provides a mechanical seal for liquids with an inner axial floating tray sleeve. The mechanical seal can observe the wear of the seal from the outside, that is, Judging the wear of the sealing surface before leakage, so as to realize early warning and monitoring of the effectiveness and safety of the internal sealing operation, and prevent safety accidents caused by seal failure under dynamic operation of the 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
  • Liquid mechanical seal internally provided with axial floating tray sleeve
  • Liquid mechanical seal internally provided with axial floating tray sleeve
  • Liquid mechanical seal internally provided with axial floating tray sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as image 3 and Figure 5 As shown: this embodiment discloses a static ring compensation type mechanical seal for liquids with an axial floating tray sleeve inside. The spring 6 and the tray cover 3, wherein the spring 6, the static ring 2 and the gland 12 are connected to the housing 13 by fastening bolts 16 to be stationary, the moving ring 1 is fixed and rotated by the moving ring seat 15 and the shaft 10, the moving ring 1 and the static The relative contact end surface of the ring 2 is perpendicular to the shaft 10 and fits and slides to form a sealing surface. Among them, there is a stepped cylindrical tray sleeve 3 with the bottom tray located between the static ring 2 and the gland 12, and the sleeve is parallel to the shaft 10 along the axial direction;

[0030] Specifically, such as image 3 As shown, the section of the tray cover 3 is "L" type, which is divided into two parts: the bottom tray and the sleeve; the diameter of the tray is larger than the...

Embodiment 2

[0035] Such as figure 1 , Figure 4 and Figure 6 As shown, in this embodiment, the mechanical seal comes with a shaft sleeve 7, a positioning block 11, a locking ring 9 and a gland 12 to form a static ring compensation cartridge type mechanical seal, including a static ring 2, a moving ring 1, a spring 6, Tray cover 3, etc., in which the tray cover 3, spring 6, static ring 2 and gland 12 are connected to the housing 13 by fastening bolts 16 and stationary, and the moving ring 1 is fixed and rotated with the shaft 10 through the shaft sleeve 7 and the locking ring 9 , the relative contact end surfaces of the moving ring 1 and the static ring 2 are perpendicular to the shaft 10 and fit and slide to form a sealing surface. Among them, there is a cylindrical tray cover 3 located between the static ring 2 and the shaft sleeve 7 along the vertical direction of the axis, and parallel to the shaft sleeve 7 along the axis direction;

[0036] Specifically, such as figure 1As shown,...

Embodiment 3

[0041] Such as figure 2 , Figure 7 and Figure 9 As shown, this embodiment discloses a dynamic ring compensation mechanical seal for liquids with an axial floating tray sleeve inside, which is used for sealing between the rotating shaft and the housing, including a static ring 2, a moving ring 1, a spring 6, and a tray Set 3, etc., in which the static ring 2 and the gland 12 are connected to the housing 13 by fastening bolts 16 and stationary, the moving ring 1 and the spring 6 are fixed and rotated with the shaft 10 through the moving ring seat 15, and the moving ring 1 and the static ring 2 are opposite to each other. The contact end surface is perpendicular to the shaft 10 and fits and slides to form a sealing surface. Among them, there is a cylindrical tray cover 3 located between the moving ring 1 and the shaft 10 in the radial direction and parallel to the shaft 10 along the axial direction; Extending out of the mechanical seal gland 12 along the axial direction nea...

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

No PUM Login to View More

Abstract

The invention discloses a liquid mechanical seal internally provided with an axial floating tray sleeve. The mechanical seal comprises a movable ring (1), a static ring (2), a locking ring (9) and thetray sleeve (3), wherein the static ring (2) is connected with a gland (12) and a shell (13) and stationary, the movable ring (1) is fixed to a shaft or shaft sleeve (7) through the locking ring (9)and rotated, and the contact face between the movable ring (1) and the static ring (2) form a seal face in perpendicular sliding fit with the shaft. The tray sleeve (3) is located between a sealing ring and the shaft or shaft sleeve in the axis vertical direction, the inner side end, close to liquid, of the tray sleeve (3) in the axis direction is connected with the movable ring (1) or the staticring (2), and the end, close to air, of the tray sleeve (3) in the axis direction extends out of the gland (12). Abrasion of the sealing ring can be effectively early warned, and sealing effectivenessand reliability are ensured.

Description

technical field [0001] The invention relates to a fluid mechanical seal, in particular to a liquid mechanical seal with an inner axial floating tray sleeve used between a rotating shaft and a rotating equipment casing. Background technique [0002] In the prior art, there are four major types of sealing forms of fluid seals: packing seals, rubber seals, dry gas seals, and mechanical seals. Among them, the packing seal is to make the packing plastically deformed by the pressure of the fixed part to generate radial force and tightly contact the shaft to seal, and the packing seal wears the shaft and has a small amount of leakage. Among them, the rubber ring seal, through the high elasticity of the rubber material, will produce a large deformation when given a small stress. This deformation can provide contact pressure, compensate for the leakage gap, and achieve the purpose of sealing. The rubber ring seal is mostly used for Hydraulic and pneumatic seals with reciprocating mo...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34
CPCF16J15/3452F16J15/3492F16J15/3472
Inventor 赵晶玮张军
Owner ENVIRONMENTAL GASKET COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com