Hydraulic Pressure Exchanger Filtration for Clean Lubrication
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Solution Overview
Problem
Fluid handling equipment in hydraulic fracturing operations faces issues with solids and contaminants in lubrication systems, leading to decreased performance and wear of rotating components, as existing filtration methods often require filtering the entire fluid flow, which is costly and energy-intensive.
Innovation Solution
A dedicated external pump provides a clean lubrication fluid, and a filtration system filters only a small portion of the fluid flow, using a combination of filtration techniques such as centrifugal separation and settling filtration, integrated within the hydraulic energy transfer system to maintain equipment performance while reducing costs and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire fluid flow is filtered through conventional filtration methods, then the lubrication system maintains clean fluid and rotating components perform reliably, but the energy consumption and operational costs increase significantly
Solution Approach 1:
The patent applies partial filtration by filtering only a portion of the lubrication fluid flow rather than the entire flow. The filtration system is configured to divert a fraction of the fluid through filtration media while the majority of the fluid bypasses the filter, thereby maintaining adequate lubrication with reduced energy consumption and lower operational costs.
2Reliability
If solids and contaminants are removed from the lubrication fluid, then wear of rotating components is reduced and equipment life is extended, but the complexity of the filtration system increases
Solution Approach 1:
The filtration system is segmented into multiple independent filtration stages including a first filtration media for larger particles and a second filtration media for finer contaminants. This segmentation allows each stage to handle specific particle sizes, improving overall filtration effectiveness while keeping individual filter elements simpler and easier to maintain.
Solution Approach 2:
The patent employs porous filtration media with different pore sizes to capture solids and contaminants. The filtration media utilizes its porous structure to physically trap particles while allowing clean fluid to pass through, providing effective contamination removal without requiring complex mechanical filtration mechanisms.
3Productivity
If a filtration system is integrated into the hydraulic energy transfer system, then clean lubrication is maintained and rotating components operate efficiently, but the device complexity and initial costs increase
Solution Approach 1:
The filtration system is merged with the existing hydraulic energy transfer system by integrating the filtration components into the fluid circulation pathway. The filtration system utilizes the existing fluid flow to drive the filtration process without requiring separate pumping systems, thereby maintaining clean lubrication while minimizing additional system complexity.
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 approach effectively maintains the performance of rotating components by providing clean lubrication, reducing wear, and lowering operational costs and energy usage by filtering only a portion of the fluid flow, thus extending equipment life and improving fracturing efficiency.
Implementation Method 1
a filtration system filters only a small portion of the fluid flow, using a combination of filtration techniques such as centrifugal separation and settling filtration
Implementation Method 2
a filtration system filters only a small portion of the fluid flow, using a combination of filtration techniques such as centrifugal separation and settling filtration
Implementation Method 3
lubrication systems may facilitate the rotation of the rotating components within the hydraulic energy transfer system
Data Source
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AI summary
A system includes a hydraulic pressure exchanger configured to exchange pressures between a first fluid and a second fluid, wherein pressure of the first fluid is greater than pressure of the second fluid. The system also includes one or more filters coupled to the hydraulic pressure exchanger. A pathway within a housing of the hydraulic pressure exchanger enables a portion of the first fluid to be diverted to be filtered by the one or more filters to produce a lubrication fluid to be used by the hydraulic pressure exchanger.