Valve Pressure Equalization for Noise and Erosion Reduction
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Solution Overview
Problem
Conventional energy recovery devices in high-pressure systems experience high noise levels, vibrations, and erosion due to cycling between high and low pressures, particularly when handling abrasive and corrosive fluids, which reduces the lifespan of pumps and components.
Innovation Solution
A pressure equalizing system that includes a pressure adjusting device with a plunger or piston to balance pressures across valves and interfaces, reducing pressure differentials and minimizing noise, vibration, and erosion by retracting or extending to match pressure on either side of the valve, thus maintaining a stable pressure environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional energy recovery devices operate with high differential pressures across valves, then pressure energy transfer efficiency is improved, but noise levels increase
Solution Approach 1:
The valve is segmented into multiple stages, dividing the single high differential pressure event into multiple lower differential pressure events. The pressure equalization chamber allows the valve to operate in stages: first equalizing pressure, then transferring energy in controlled increments, thereby reducing peak noise levels while maintaining overall power transfer efficiency.
Solution Approach 2:
A pressure equalization chamber is introduced as an intermediary between the high-pressure and low-pressure sides of the valve. This chamber temporarily stores fluid and equalizes pressure before the valve opens, acting as a buffer that reduces the shock and noise of pressure differential changes during operation.
2Power
If conventional energy recovery devices operate with high differential pressures across valves, then pressure energy transfer efficiency is improved, but vibration levels increase
Solution Approach 1:
The valve operation is segmented into multiple controlled stages using the pressure equalization chamber. Instead of a single abrupt opening under high differential pressure, the valve operates in staged increments, reducing mechanical shock and vibration while maintaining effective pressure energy transfer across the device.
Solution Approach 2:
The pressure equalization chamber provides beforehand cushioning by pre-balancing pressures before the valve opens. This preliminary pressure equalization reduces the sudden mechanical stress and vibration that would occur during rapid valve opening under high differential pressure conditions.
3Power
If conventional energy recovery devices operate with high differential pressures across valves, then pressure energy transfer efficiency is improved, but erosion increases
Solution Approach 1:
The high differential pressure is segmented into multiple lower differential pressure events through staged valve operation. The pressure equalization chamber enables the system to transfer the same total energy while distributing it across multiple smaller pressure steps, reducing erosive forces on valve components and extending device life.
Solution Approach 2:
The pressure equalization chamber provides beforehand cushioning by equalizing pressures before valve opening. This reduces the erosive impact of high-velocity fluid jets and sudden pressure changes on valve surfaces, particularly important when handling abrasive fluids.
4Object-generated harmful factors
If pressure equalizing devices are added to balance pressures, then noise, vibration and erosion are reduced, but device complexity increases
Solution Approach 1:
The pressure equalization chamber is merged with the existing valve body structure, combining multiple functions (pressure equalization, fluid storage, and valve operation) into a single integrated component. This reduces overall device complexity compared to adding separate pressure equalization systems.
Solution Approach 2:
The pressure equalization chamber serves multiple functions simultaneously: it equalizes pressure to reduce noise and vibration, stores fluid temporarily, and controls the timing of valve operation. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device 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
The system effectively reduces noise, vibration, and erosion in energy recovery devices, extending the lifespan of high-pressure pumps and components by maintaining stable pressure conditions during fluid transfer, even with abrasive and corrosive fluids.
Implementation Method 1
pressure equalizing system that includes a pressure adjusting device with a plunger or piston to balance pressures across valves and interfaces, reducing pressure differentials
Data Source
AI summary
A pressure equalizing system comprising a high pressure pump, a low pressure pump, a pressure adjusting device, a fluid interface separator, and a chamber; wherein the system is transitionable between loading and discharging configurations via a pressure equalizing configuration; wherein the fluid interface separator is downstream of the high pressure and low pressure pumps, and upstream of the pressure adjusting device and chamber; wherein the fluid interface separator is configured to transition the system between loading and discharging configurations; wherein, when the system is in pressure equalizing configuration and transitioning from discharging to loading configuration, the pressure adjusting device decreases pressure of chamber from first pressure to within ±100 psig of second pressure; and wherein, when the system is in pressure equalizing configuration and transitioning from loading to discharging configuration, the pressure adjusting device increases pressure of chamber from second pressure to within ±100 psig of first pressure.