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

A High Temperature Flange Sealing Structure Containing Flexible Graphite Metal ω-shaped Teeth Composite Gasket

A technology of flexible graphite and high-temperature flanges, which is applied in the direction of flange connections, pipes/pipe joints/fittings, passing components, etc. Moments and other issues, to achieve the effect of increasing the effective sealing area, enhancing the sealing effect, and reducing the pressure energy

Inactive Publication Date: 2016-11-02
WUHAN INSTITUTE OF TECHNOLOGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When under high temperature and high pressure conditions for a long time, the flange connection is prone to leakage and failure
Commonly used raised face flanges have a convex platform on the end face of the flange. Under working conditions, a bending moment will be generated on the flange, the gasket will be unevenly stressed, the flange will deflect, and leakage will easily occur.
In addition, under high temperature and high pressure operating conditions, the flange end faces, gaskets and bolts will all be subject to great stress, resulting in the creep of the materials of the various components in the flange connection, resulting in relaxation of the flange connection system of the pipeline, and eventually resulting in leakage failure

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
  • A High Temperature Flange Sealing Structure Containing Flexible Graphite Metal ω-shaped Teeth Composite Gasket
  • A High Temperature Flange Sealing Structure Containing Flexible Graphite Metal ω-shaped Teeth Composite Gasket
  • A High Temperature Flange Sealing Structure Containing Flexible Graphite Metal ω-shaped Teeth Composite Gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Below in conjunction with specific embodiment and accompanying drawing, the present invention will be further described (as figure 1 , 2 , 3).

[0019] A high-temperature flange sealing structure containing a flexible graphite metal Ω-shaped tooth composite gasket, which includes an upper flange 5, a lower flange 7, and a flexible graphite metal Ω-shaped tooth composite gasket 6, (the upper flange 5 and the lower flange 7 when they are sealed and connected to each other) the flexible graphite metal Ω-shaped tooth composite gasket 6 is located between the upper flange 5 and the lower flange 7; the metal skeleton of the flexible graphite metal Ω-shaped tooth composite gasket 6 is provided with There are multiple circles of annular bosses 9 with "Ω"-shaped cross-sections, and the multi-circle annular bosses 9 are arranged at equal intervals (that is, there is a certain interval between the annular bosses 9 and the annular bosses 9), and are consistent with the above metho...

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 relates to the field of a pipeline flange sealing structure, in particular to a high-temperature flange sealing structure comprising a flexible graphite metal omega-shaped tooth composite gasket. The high-temperature flange sealing structure is characterized by comprising an upper flange, a lower flange and the flexible graphite metal omega-shaped tooth composite gasket. The upper surface and the lower surface of a metal frame of the flexible graphite metal omega-shaped tooth composite gasket are provided with annular boss in multiple circles respectively, the annular bosses are provided with omega-shaped sections and arranged at equal distance, the planar parts of the upper and lower surfaces of the flexible graphite metal omega-shaped tooth composite gasket are provided with flexible graphite layers, annular grooves matched with the annular bosses are arranged on the contact surfaces of the upper flange, the lower flange and the flexible graphite metal omega-shaped tooth composite gasket and provided with rectangular sections, the annular bosses are inserted into the annular grooves correspondingly and are in interference fit with the same. The high-temperature flange sealing structure can be applied to high-temperature and -pressure working conditions, excellent tightness can be kept for a long time, and leak of the flanges can be effectively prevented.

Description

technical field [0001] The invention relates to the field of sealing structures of pipe flanges, in particular to a high-temperature flange sealing structure containing flexible graphite metal Ω-shaped tooth composite pads. Background technique [0002] Since the beginning of the 21st century, the contradictions between economic development and energy supply and environmental protection have become increasingly prominent, and countries all over the world have taken "safety, efficiency, environmental protection, and economy" as the theme of industrial development. This trend is mainly reflected in the safe operation of high-temperature equipment and the tightness of connection systems in the petrochemical industry. Flange connection is widely used in the connection of pressure pipes and pressure vessels in the petrochemical industry due to its easy disassembly and assembly. When under high temperature and high pressure conditions for a long time, the flange connection is pro...

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 Patents(China)
IPC IPC(8): F16L23/16F16L23/032
CPCF16L23/032F16L23/162
Inventor 王明伍郑小涛喻九阳林纬徐建民吴艳阳
Owner WUHAN INSTITUTE OF TECHNOLOGY
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