Gas Casing Intersection Structure for Low Pressure Loss
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Solution Overview
Problem
Existing gas casing designs with tilted flow channels suffer from high pressure loss due to swirl flow generation, leading to significant stress concentration at intersecting parts, which is not effectively addressed by current countermeasures.
Innovation Solution
A gas casing design featuring a first channel section with an intersecting part having a rounded quadrangular cross section and a flat part, where the second channel section opens at the flat part, allowing the intersecting part to deform and compress, thereby canceling out stress concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the flow channel is formed tilted with respect to the normal of the cylindrical space, then stress concentration in the opening part is suppressed, but a swirl flow is generated causing large pressure loss
Solution Approach 1:
Instead of tilting the flow channel to suppress stress concentration (conventional approach), this invention inverts the approach by keeping the flow channel straight and instead tilting the intersecting part's cross-section. This reversal of the design focus eliminates swirl flow while maintaining stress concentration suppression
Solution Approach 2:
The invention applies a localized structural feature (rounded quadrangular cross section with flat part) specifically at the intersecting part where stress concentration occurs, while keeping the rest of the flow channel circular and straight. This localized modification addresses stress concentration without affecting overall flow characteristics
2Stress or pressure
If the intersecting part is designed with a rounded quadrangular cross section and flat part, then stress concentration is suppressed through bending deformation, but the structural complexity increases
Solution Approach 1:
The complex rounded quadrangular cross section with flat part is applied only at the specific intersecting part where stress concentration occurs, while the rest of the flow channel maintains a simple circular cross section. This localized application minimizes overall structural complexity while achieving stress suppression
Solution Approach 2:
The intersecting part uses a rounded quadrangular cross section with curved surfaces that naturally deform under stress. The curvature design allows bending deformation to occur smoothly, suppressing stress concentration through geometric flexibility rather than complex mechanical structures
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 design effectively suppresses stress concentration at the intersecting part, reduces pressure loss, and enhances the structural integrity of the casing while maintaining a larger flow passage area.
Implementation Method 1
when the intersecting part expands, the flat part having a rounded quadrangular cross section deforms in a bending manner. In other words, since deformation occurs in such a manner that the inner circumference of the flat part is compressed, it is possible to suppress the stress concentration
Data Source
AI summary
A casing for gas including a first channel section through which gas flows and a second channel section intersecting with the first channel section, the first channel section having an intersecting part that intersects with the second channel section, the intersecting part being formed to have a rounded quadrangular cross section and having a flat part, the second channel section intersecting with the first channel section to open at the flat part.