A self-repairing flange gasket for pipeline connection

A flange gasket, self-healing technology, applied in flange connections, piping systems, pipes/pipe joints/fittings, etc., can solve problems such as stress relaxation, torque loss, sealing effect, etc., to reduce the risk of large-scale leakage , avoid failure or detachment, reduce the effect of high loss

Active Publication Date: 2021-12-31
江阴市国祥锻造有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The uneven distribution of compression force will cause the flange gasket gap, resulting in the leakage of pipeline medium;
[0005] 2. Stress relaxation and torque loss, stress relaxation and torque loss are also the main causes of leakage;
[0007] Fourth, temperature changes and cooling also have a great impact on the sealing effect
[0008] In most cases, the failure of flange gaskets is a gradual failure process, but it is difficult to know in the early stage of failure in the existing technology, and it is often only noticed after a certain scale of medium leakage occurs. too late to cause some damage

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 self-repairing flange gasket for pipeline connection
  • A self-repairing flange gasket for pipeline connection
  • A self-repairing flange gasket for pipeline connection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 , a self-repairing flange gasket for pipeline connection, including a gasket body 1, the left and right side walls of the gasket body 1 are inlaid with water-swellable rubber rings 4, which have the effect of water-swelling, thereby realizing Preliminary anti-seepage, the outer edges of the upper and lower ends of the water-expandable rubber ring 4 are respectively inlaid and connected with the outer water-retaining ring piece 2 and the inner water-repelling ring piece 3, and the water-expandable rubber ring 4 is also inlaid and connected with multiple circular arrays. The leading water fiber bundle 5 plays the role of guiding water into the water-swellable rubber ring 4. On the one hand, it can contact the moisture-absorbing touch microspheres 8 to trigger the repair action, and on the other hand, it can make the water-swellable rubber ring 4 expand more. uniformly dense.

[0049] see Figure 2-3 The gasket body 1 is inlaid with a shaped air-blocking rin...

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 self-repairing flange gasket for pipeline connection, which belongs to the technical field of seals. It is a self-repairing flange gasket for pipeline connection, which can realize rapid repair when gaps appear in the early stage of flange gasket failure. Respond and trigger self-healing actions, using the characteristics of moisture perception, on the one hand, the rapid appearance prompts the technicians in time, on the other hand, using the pre-set repair layer, based on the characteristics of gas expansion, it actively expands to fill the gaps, and then uses self-heating materials The hot-melt adhesive is melted and guided, and a continuous adhesive ring is formed to cooperate with the repair layer for repair, and it has a certain strength to resist water erosion, avoid the failure or detachment of the adhesive ring, and effectively repair the gap. Anti-seepage, reduce the risk of large-scale leakage caused by further failure of flange gaskets, and gain valuable time for technicians to repair, thereby reducing the high loss caused by pipeline leakage.

Description

technical field [0001] The invention relates to the technical field of seals, in particular to a self-repairing flange gasket for pipeline connection. Background technique [0002] Flange gaskets are used in pipeline flange connections. They are seals between two flanges. The medium, pressure and temperature directly affect the selection of flange gaskets. In pipeline connections, especially large pipelines, flanges are usually used. The connection has the advantages of convenient installation, good sealing and easy maintenance, but under long-term use, the phenomenon of flange gasket failure often occurs [0003] At this stage, the failure of flange gaskets is mainly due to the following factors: [0004] 1. The uneven distribution of compression force will cause the flange gasket gap, resulting in the leakage of pipeline medium; [0005] 2. Stress relaxation and torque loss, stress relaxation and torque loss are also the main causes of leakage; [0006] 3. The surface r...

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): F16L23/18F17D5/02
CPCF16L23/18F17D5/02
Inventor 吴月艳
Owner 江阴市国祥锻造有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap