Diaphragm Radial Compression Ring for Pulsation Dampener Sealing
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Solution Overview
Problem
Conventional gas-charged pulsation dampeners face challenges in maintaining sealing integrity and extending the service life of their bladders, especially under fluctuating system pressures in modern drilling operations, where continuous micro-process corrections and pressure variations reduce performance and lead to premature bladder failure.
Innovation Solution
The implementation of a diaphragm radial compression ring in combination with a pre-shaped or preformed elastomeric foam element within the pulsation dampener enhances the sealing efficiency and service life by maintaining gas and liquid sealing integrity, allowing for effective pulsation control across varying pressures without the need for frequent precharge adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gas-charged pulsation dampeners are used, then pulsation control is achieved, but sealing integrity deteriorates and service life is reduced under fluctuating pressures
Solution Approach 1:
The patent applies parameter changes by modifying the physical state and distribution of the gas charge within the dampener. The gas is introduced through porous material to create a distributed saturation effect rather than a concentrated gas pocket, changing how the gas interacts with the diaphragm under pressure fluctuations. This parameter change maintains sealing integrity while extending service life.
Solution Approach 2:
The patent utilizes porous material as a key component to achieve the desired sealing and service life improvements. The porous structure allows gas to be distributed throughout the material matrix, creating a controlled saturation effect that maintains consistent sealing pressure on the diaphragm while accommodating pressure fluctuations in the system.
2Reliability
If precharge adjustments are made frequently to maintain performance, then sealing ability is maintained, but system shutdowns increase and productivity decreases
Solution Approach 1:
The patent implements a self-service mechanism where the porous material saturated with gas automatically maintains sealing pressure on the diaphragm. The distributed gas saturation creates a self-regulating system that adapts to pressure fluctuations without requiring external intervention or frequent precharge adjustments, thereby maintaining productivity.
Solution Approach 2:
The patent ensures continuous sealing action by distributing gas saturation throughout the porous material structure. This creates an ongoing, continuous sealing force on the diaphragm that persists through pressure fluctuations, eliminating the need for intermittent shutdowns to adjust precharge and maintaining continuous drilling operations.
3Adaptability or versatility
If system pressure varies outside expected operating range, then adaptability is reduced, but operational simplicity is maintained
Solution Approach 1:
The patent enhances pressure range adaptability through parameter changes in the gas distribution mechanism. By saturating porous material with gas, the system creates a distributed pressure response that adapts to varying system pressures. The porous structure's physical properties enable the system to maintain functionality across a broader pressure range without adding complex control mechanisms.
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
This solution significantly improves the sealing ability and service life of the diaphragm, enabling sustained pulsation control and increased drilling efficiency, even under conditions of fluctuating pressures, thereby reducing the need for frequent system shutdowns and extending the operational life of drilling equipment.
Implementation Method 1
a diaphragm radial compression ring... The flexible diaphragm is held within the internal cavity via sealing ledge/lip at least in part by a diaphragm radial compression ring
Implementation Method 2
The flexible diaphragm allows at least some fluid from the external fluid flow to enter the internal cavity through the opening based on a pressure of the external fluid flow
Data Source
AI summary
A pulsation dampener includes a body having an internal cavity and an opening providing fluid communication between the internal cavity and a fluid flow external to the body. A flexible diaphragm fitted with the diaphragm radial compression ring is held within the internal cavity, allowing for improved seal ability and enhanced service life of the diaphragm at allowing at least some fluid from the external fluid flow to enter the internal cavity through the opening based on a pressure of the external fluid flow, the flexible diaphragm or elements in contact with the fluid from the external fluid flow that has entered the internal cavity.