Active Compensation Element for Fluid Pressure Fluctuation Damping
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Solution Overview
Problem
Existing damping solutions for fluid vibrations in piping systems are complex, large, and require individual tailoring, failing to effectively dampen pressure fluctuations in a wide range of fluids, especially incompressible liquids like water, which can damage sensitive equipment.
Innovation Solution
A compensation element with a hollow body and actuator that actively adjusts its internal volume to absorb pressure fluctuations, using piezoelectric or electrostatic principles to rapidly change volume and minimize pressure differences, suitable for various fluids including ultrapure water and corrosive media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If expansion vessels are used to compensate for pressure changes, then pressure stability is improved, but device complexity and size increase
Solution Approach 1:
The patent uses a piezoelectric actuator to dynamically change the internal volume of the compensation chamber, allowing active adjustment of the compensation characteristic to maintain pressure stability while keeping the device compact
Solution Approach 2:
The patent replaces traditional mechanical expansion vessel mechanisms with a piezoelectric actuator that uses electro-mechanical conversion to achieve volume adjustment, significantly reducing device complexity and size
2Stability of the object's composition
If large expansion vessels are used for high precision applications, then pressure stability is improved, but device size increases
Solution Approach 1:
The piezoelectric actuator enables dynamic volume adjustment of the compensation chamber, allowing a compact device to achieve the pressure stability previously requiring large expansion vessels
Solution Approach 2:
The system transitions from static expansion vessels to a dynamic compensation mechanism where the actuator continuously adjusts volume in response to pressure fluctuations, achieving high precision with minimal size
3Stability of the object's composition
If Helmholtz resonators are used to reduce pressure fluctuations, then pressure stability is improved, but device complexity and volume increase for broader frequency spectrum
Solution Approach 1:
The piezoelectric actuator dynamically changes the compensation chamber volume to respond to pressure fluctuations across different frequencies, achieving broad-spectrum damping in a compact volume
Solution Approach 2:
The patent replaces passive Helmholtz resonator mechanics with active piezoelectric volume adjustment, enabling adaptive damping across multiple frequencies without increasing device volume
4Reliability
If traditional damping elements are used, then reliability is improved, but device complexity and size increase
Solution Approach 1:
The patent replaces complex mechanical damping mechanisms with a piezoelectric actuator that uses electro-mechanical conversion, significantly reducing device complexity while maintaining or improving reliability through fewer moving parts
Solution Approach 2:
The actuator dynamically adjusts compensation chamber volume to adapt to different operating conditions, maintaining high reliability across varying fluid types and pressure conditions without complex mechanical adjustments
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
Effectively reduces pressure fluctuations by at least 50% to 99.5%, maintaining stable pressure with minimal heat transfer and rapid response, protecting sensitive equipment from vibrations and deformations.
Implementation Method 1
using piezoelectric or electrostatic principles to rapidly change volume
Implementation Method 2
using piezoelectric or electrostatic principles to rapidly change volume
Implementation Method 3
compensation volume which can be changed by the actuator during operation in order to compensate for pressure fluctuations occurring in the fluid line
Data Source
Figure 1~5
Figure 2~3
Figure 4
AI summary
The invention relates to a compensation element (1, 10-16) for the active damping of vibrations of a medium (24), in particular a fluid. The compensation element comprises: a hollow body (20) having an internal volume (23), a compensation volume (43) being formed in the internal volume (23) and the hollow body (20) also having at least two openings (21, 22) which connect the compensation volume (41) to a fluid conduit (51, 52) used to supply and discharge the medium (24), wherein the compensation element (1, 10-16) is separable from the fluid conduit (51, 52) in a non-destructive manner; and at least one actuator (30) which can increase or decrease the compensation volume (41) during operation.