Pipe Flange Anti-Vibration Sealing with Radial and Axial Damping

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Solution Overview

Problem

Flange connections in pipeline transport experience significant vibrations, leading to bolt loosening, misalignment, and poor sealing, which can result in leakage and corrosion issues, necessitating an effective anti-vibration solution.

Innovation Solution

A detachable anti-vibration sealing protection device for pipe flanges, comprising a casing with through holes, radial and axial shock absorption assemblies, and a vibration monitoring system, including shock absorption elastic members, Z-shaped brackets, and inert gas filling to reduce vibrations and prevent misalignment, along with a processor for early failure warning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If flange connections are used in pipeline transport, then liquid transport function is achieved, but large vibrations occur causing bolt loosening and misalignment

Engineering Contradiction:
Improveflange connection stabilityVSAvoidvibration
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a protective device as an intermediary component between the flange and the external environment. This device includes vibration reduction components that act as mediators to absorb and dampen vibrations before they reach the flange connection, thereby protecting the bolts and preventing misalignment while maintaining the liquid transport function.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective device is installed beforehand on the flange connection to provide preventive protection. The vibration reduction components are pre-positioned to cushion against upcoming vibrations, preventing bolt loosening and misalignment before they occur, rather than addressing these issues after they manifest.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Duration of action of stationary object

If flanges are exposed to air for long-term operation, then pipeline transport function is maintained, but corrosion occurs affecting maintenance

Engineering Contradiction:
Improveflange service lifeVSAvoidcorrosion
Core Design Contradiction:
Duration of action of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The protective device creates an inert or protected environment around the flange connection by sealing it from direct exposure to air. This isolation prevents oxygen and moisture from contacting the flange surface, thereby preventing corrosion and extending the service life of the flange while maintaining its transport function.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Solution Approach 2:

The protective device employs sealing elements and protective coverings that form a barrier between the flange and the external air environment. These flexible seals and protective films prevent corrosive substances from reaching the flange surface, protecting it from degradation over time.

Inventive Principle:
Principle #30Flexible shells and thin films

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device effectively reduces flange vibrations, prevents misalignment, and extends the service life of flanges by absorbing radial and axial vibrations, while the monitoring system provides early warnings for maintenance, ensuring reliable and long-lasting operation.

Implementation Method 1

a first shock absorption assembly which is radial shock absorption of the flange

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

a second shock absorption assembly which is installed in a one-to-one correspondence with the flange, and is configured for axial shock absorption of the corresponding flange

Methodology Applied
Scientific EffectShock absorption: Damping

Data Source

PatentUS11953125B2Detachable anti-vibration sealing protection device for pipe flange
Publication Date: 2024.04.09 CHANGZHOU UNIV
  • US11953125B2 patent drawing
  • US11953125B2 patent drawing
  • US11953125B2 patent drawing

AI summary

The embodiments of the present disclosure provide a detachable anti-vibration sealing protection device for a pipe flange. The protection device includes a casing, wherein left and right end surfaces of the casing have through holes for the pipeline to pass through, and the casing has an accommodation cavity for placing the flange; a first shock absorption assembly for radial shock absorption of the flange; and a second shock absorption assembly which is installed in a one-to-one correspondence with the flange and is configured for axial shock absorption of the corresponding flange. The first shock absorption assembly and the second shock absorption assembly are installed in the accommodation cavity.