High-Pressure Piston Compressor Isostatic Valve Housing
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Solution Overview
Problem
High-pressure piston compressors face material damage and efficiency issues due to anisostatic pressure on valve housings, leading to wear, fatigue, and potential fractures in the cylinder material, especially in the second stage gas compression cylinder.
Innovation Solution
The piston compressor incorporates an isostatic counter-pressure mechanism by mounting inlet and outlet valve housings within a portion of the vessel chamber wall, which generates a uniform pressure on the valve housings, reducing anisostatic stress and enhancing valve longevity. Additionally, the inlet and outlet ducts are positioned parallel to the vessel axis to minimize dead spaces and reduce wear from compressed gas flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If valves are provided perpendicular to the axis of the rod at the ends of compression cylinders, then gas intake and discharge can be controlled, but the perpendicular bend of gas flow causes detrimental exposure of cylinder material to high pressure, leading to cracks or fractures
Solution Approach 1:
The valve housings are repositioned from a perpendicular arrangement to an axial arrangement along the compressor rod axis. This dimensional reorientation changes the gas flow direction from perpendicular bends to axial flow, eliminating the anisostatic pressure concentration at perpendicular bends while maintaining valve functionality for gas intake and discharge control
2Object-affected harmful factors
If valves are provided along the compressor rod axis, then material damage from perpendicular bends is reduced, but the compressor efficiency deteriorates
Solution Approach 1:
The valve housings are strategically positioned within a specific portion of the compression cylinder wall rather than at the extreme ends. This localized placement optimizes the balance between reducing anisostatic pressure exposure and maintaining efficient gas flow paths, allowing the system to benefit from both axial alignment and improved compressor efficiency
3Ease of repair
If valve housings are mounted on the compression cylinder wall, then ease of maintenance is improved, but the valve housings are exposed to high gas pressure causing wear and fatigue
Solution Approach 1:
The valve housings are nested within a portion of the compression cylinder wall rather than being mounted on the external surface. This nested configuration protects the valve housings from direct exposure to high gas pressure and wear while maintaining accessibility for maintenance operations, effectively shielding the components while preserving serviceability
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 configuration increases the service life of valves, improves compressor efficiency, and reduces the risk of material damage, making the compressor more reliable and economically advantageous by mitigating stress on valve housings and minimizing dead spaces.
Implementation Method 1
the portion of the vessel chamber wall encloses the inlet valve housing and the outlet valve housing, such that the portion of the vessel chamber wall generates an isostatic counter-pressure on the inlet valve housing and the outlet valve housing in response to the pressure on the inlet valve housing and the outlet valve housing from the gas in the vessel chamber
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A high-pressure piston compressor (1) for compressing gas, comprising a vessel (4) having a vessel chamber (8, 23) wherein a piston (3) is guided reciprocally, for compressing a gas in the vessel chamber during operation of the piston compressor, an inlet valve housing (17, 29) comprising an inlet valve(18, 30), and an outlet valve housing (15, 31) comprising an outlet valve (16, 32), wherein the inlet valve housing and the outlet valve housing are mounted within a portion of the vessel chamber wall (14, 28), and wherein the portion of the vessel chamber wall encloses the inlet valve housing and the outlet valve housing, such that the portion of the vessel chamber wall generates an isostatic counter-pressure on the inlet valve housing and the outlet valve housing in response to the pressure on the inlet valve housing and the outlet valve housing from the gas in the vessel chamber during operation of the piston compressor.