High-Pressure Valve Erosion Control via Cone Spindle
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Solution Overview
Problem
High-pressure valves used in high-pressure treatment systems face significant erosion issues due to intense flow dynamics during rapid pressure reduction, leading to frequent component exchange and long cycle times, with existing solutions either increasing complexity or not effectively addressing erosion.
Innovation Solution
A high-pressure valve design featuring a cone-shaped valve spindle tip and a valve seat with a conical counterbore and shank counterpart surface, allowing for optimized sealing and pressure dissipation through controlled gap formation, reducing erosion and enabling higher wear cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rapid pressure reduction is performed to achieve fast expansion, then productivity is improved, but erosion of valve components worsens due to intense flow dynamics
Solution Approach 1:
The pressure reduction process is divided into two distinct phases: rapid expansion phase using the main valve opening, followed by a soft expansion phase using the bypass channel. This segmentation allows the system to achieve both fast initial pressure reduction and gentle final pressure reduction, preventing erosion while maintaining productivity.
Solution Approach 2:
A bypass channel with a needle valve is introduced as an intermediary flow path. This bypass channel handles the final stage of pressure reduction with controlled, low-velocity flow, acting as a mediator that protects the main valve components from erosion while completing the expansion process.
2Object-affected harmful factors
If two pressure valves connected in series are used to reduce erosion, then erosion is prevented, but device complexity and cycle time increase
Solution Approach 1:
The bypass channel with needle valve is integrated into the existing single high-pressure valve body, combining the functions of rapid expansion and soft expansion into one valve assembly. This merging approach achieves erosion prevention without requiring separate valve components or complex multi-valve systems.
Solution Approach 2:
The single high-pressure valve is designed to perform multiple functions: rapid expansion through the main valve opening and soft expansion through the bypass channel with needle valve. This multi-functionality eliminates the need for multiple separate valves while achieving comprehensive erosion prevention.
3Reliability
If valve spindle and seat are made from high-strength materials to withstand erosion, then durability is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The bypass channel with needle valve provides beforehand cushioning by handling the final stage of pressure reduction with controlled, low-velocity flow. This protective mechanism is built into the system design, preventing erosion before it can damage the valve spindle and seat, thereby extending component life without requiring exotic high-strength materials.
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 design achieves over 5000 wear cycles with reduced erosion, improving the durability and efficiency of high-pressure valve components in high-pressure treatment systems.
Implementation Method 1
The cone-shaped end (11) of the valve spindle tip (6) seals off against the conical surface (13) of the counterbore (10) of the valve seat (4) when the high-pressure valve is in the closed state
Implementation Method 2
a bore (8) within the valve seat (4), through which bore the high-pressure medium flows from the inlet (2) to the outlet (3) when the high-pressure valve is in the open position
Implementation Method 3
the shank (12) of the valve spindle tip (6) forms a gap with the shank counterpart surface (15) of the valve seat (4)
Implementation Method 4
The design achieves over 5000 wear cycles with reduced erosion, improving the durability and efficiency of high-pressure valve components
Data Source
AI summary
The present disclosure relates to a high-pressure valve for use in an installation for the high-pressure treatment of products in a high-pressure chamber, wherein the products, acted on by a high-pressure medium, are treated at a pressure of up to 10 000 bar.