Poppet Valve Impact Damper for Hyper Compressor Wear
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Solution Overview
Problem
Poppet valves in hyper compressors suffer from impact wear and fatigue due to repeated opening and closing movements, leading to material consumption and potential failure, especially under high impact velocities and spring failure.
Innovation Solution
Incorporating a damper mechanism within the poppet valve to absorb and dissipate impact energy during opening and closing, reducing the stress on the valve components and enhancing resistance to impact wear and fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional poppet valve is used in a hyper compressor, then the valve can control gas flow at high pressures (up to 3,000 bars), but the poppet shutter suffers from impact wear and fatigue due to repeated opening and closing movements, leading to material consumption and potential failure
Solution Approach 1:
A damper device is integrated into the poppet valve assembly to absorb and dissipate impact energy during the opening and closing cycles of the poppet shutter. The damper is positioned to engage with the poppet shutter and provide cushioning before impact occurs, reducing the kinetic energy that would otherwise cause wear and fatigue on the shutter and its seating surface.
Solution Approach 2:
The damper acts as an intermediary element between the poppet shutter and the valve body. It mediates the impact forces by providing a controlled deformation mechanism that absorbs energy, thereby protecting the critical mating surfaces of the shutter and seat from direct high-impact contact.
2Speed
If the poppet shutter operates at high impact velocities, then the valve responds quickly to pressure differential changes, but the impact stresses increase dramatically, especially under spring failure conditions, leading to accelerated wear and potential catastrophic failure
Solution Approach 1:
The damper device is pre-positioned in the valve assembly to provide cushioning before the poppet shutter impacts during high-velocity operation. This beforehand cushioning mechanism ensures that even at high response speeds, the impact energy is absorbed through controlled deformation of the damper rather than being transmitted directly to the shutter and seat surfaces.
Solution Approach 2:
The damper device changes the physical parameters of the impact event by introducing a compliant element that transforms the rigid impact into a controlled deformation process. This parameter change allows the system to maintain high operational speed while reducing the peak impact stresses through energy absorption during the deformation process.
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 damper mechanism effectively reduces impact stresses and fatigue, thereby increasing the durability and reliability of the poppet valves by dissipating kinetic energy, thus minimizing the risk of failure and extending the lifespan of the valves.
Implementation Method 1
at least a first damper configured and arranged to at least partly dissipate or absorb impact energy of the poppet shutter when the poppet shutter opens or closes the flow inlet
Data Source
AI summary
Disclosed herein is a differential pressure poppet valve comprising: a valve body, the valve body having at least one flow inlet and at least one flow outlet; at least one shutter guide disposed inside the valve body; at least one poppet shutter guided by the shutter guide; at least one flow passage from the flow inlet to the flow outlet, the flow passage being formed between an inside surface of the valve body and an outside surface of the shutter guide and of the poppet shutter. The valve further comprises at least one biasing member configured to bias the poppet shutter towards a closed position so as to block the flow passage through the flow inlet. To reduce impact wear at least a first damper is provided, configured and arranged to at least partly absorb impact energy of the poppet shutter when the poppet shutter opens or closes the flow inlet.