Pressure Exchanger Flushing and Lubrication for Particle Handling
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Solution Overview
Problem
Conventional fluid handling systems are inefficient in energy consumption and prone to fouling and particle-related issues, leading to downtime and component damage.
Innovation Solution
The use of pressure exchangers (PXs) that exchange pressure between fluids, incorporating features for flushing and lubrication to manage fouling and particles, reducing energy consumption and wear on components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If pumps or compressors are used to increase fluid pressure, then fluid pressure is increased, but energy consumption increases significantly
Solution Approach 1:
The patent combines a high-pressure pump and a pressure exchanger into an integrated system where the pressure exchanger recovers energy from the high-pressure fluid stream and transfers it to the low-pressure fluid stream. This merging allows the system to reduce overall energy consumption by utilizing the energy already present in the high-pressure stream rather than continuously consuming energy to generate it.
Solution Approach 2:
The pressure exchanger creates a feedback loop where energy from the high-pressure fluid outlet is captured and fed back to assist in pressurizing the low-pressure fluid inlet. This feedback mechanism reduces the net energy input required from the high-pressure pump, thereby lowering overall energy consumption while maintaining the desired fluid pressure increase.
2Stress or pressure
If conventional pumps and compressors are used for fluid pressurization, then fluid pressure is increased, but the system is prone to fouling and particle-related issues
Solution Approach 1:
The pressure exchanger acts as an intermediary device between the high-pressure and low-pressure fluid streams. It provides a controlled environment for pressure exchange that is less susceptible to fouling and particle accumulation compared to conventional pumps and compressors. The dual-stream design allows the system to maintain reliability by isolating the pressure-exchange mechanism from direct contact with fouling-prone single-phase flows.
3Stress or pressure
If high-pressure fluids are processed through conventional systems, then pressure requirements are met, but component wear and damage occur
Solution Approach 1:
The patent converts the potentially harmful high-pressure fluid stream into a beneficial energy source. Instead of allowing the high-pressure stream to cause wear and damage in conventional components, the pressure exchanger captures the energy from this stream and redirects it to assist in pressurizing the low-pressure stream. This converts what would be a harmful factor (high-pressure wear) into a beneficial resource (energy for pressurization), thereby extending component longevity.
4Stress or pressure
If energy is continuously consumed to increase fluid pressure in a loop system, then pressure requirements are maintained, but energy efficiency decreases
Solution Approach 1:
The pressure exchanger recovers energy that would otherwise be wasted in the high-pressure fluid stream after it has served its purpose. Instead of discarding this high-pressure fluid's energy, the system captures and redirects it to assist in pressurizing the low-pressure stream. This recovery mechanism significantly improves energy efficiency by eliminating the need to continuously consume energy to achieve the same pressure level in a loop system.
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
PXs enhance energy recovery, reduce downtime, and minimize fouling and particle-related damage, improving system efficiency and component longevity.
Implementation Method 1
Pressure exchangers (PXs) that exchange pressure between fluids
Implementation Method 2
incorporating features for flushing and lubrication to manage fouling and particles
Implementation Method 3
incorporating features for flushing and lubrication to manage fouling and particles
Data Source
AI summary
A system includes a pressure exchanger and one or more valves. The pressure exchanger includes a rotor that is configured to exchange pressure between a first fluid and a second fluid. The pressure exchanger further includes a housing disposed around the rotor, one or more flushing inlets coupled to the housing, and one or more flushing outlets coupled to the housing. The one or more first valves are coupled to the one or more flushing outlets. The one or more first valves in an open position are associated with a flushing operation. The one or more first valves in a closed position are associated with a lubrication operation.