Pipeline Strainer With Extended Straining Element
Solution Overview
Problem
Conventional Y-shaped pipeline strainers have a large flange at the bottom of the debris collection chamber, which is a potential leak point and reduces the amount of straining element in the fluid flow path, leading to increased pressure drop and difficulty in cleaning.
Innovation Solution
A pipeline strainer design with a Y-shaped body and straining element where the straining element is positioned to increase its area in the fluid flow path, eliminating the need for a flange at the bottom of the debris collection chamber and incorporating a debris drain with threaded apertures and plugs for easy cleaning, reducing the angular relationship between the debris collection chamber and fluid flow path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large flange is used to close the debris collection chamber, then the chamber can be sealed, but the flange creates potential leak points and reduces the amount of straining element in the flow path
Solution Approach 1:
The patent removes the large flange and gasket assembly from the debris collection chamber closure. Instead, a smaller capped opening is used that can be simply bolted to the chamber, eliminating the source of potential leaks while maintaining sealing function. This extraction of the problematic flange component directly resolves the contradiction by removing the leak risk without compromising the chamber's ability to contain debris.
Solution Approach 2:
The straining element is repositioned and extended to span across the flow path in a manner that maximizes its filtering surface area. By changing the dimensional arrangement of the straining element - extending it further into the flow path and positioning it to utilize the available space more efficiently - the patent increases the amount of straining surface without requiring a larger flange, thus reducing pressure drop while maintaining effective filtration.
2Reliability
If a large flange is used to close the debris collection chamber, then the chamber can be sealed, but the flange requires gaskets and is a potential leak point
Solution Approach 1:
The patent extracts and eliminates the gasket component from the sealing system. By replacing the flange-gasket assembly with a simpler capped opening that is directly bolted to the debris collection chamber, the design removes the gasket layer that is prone to degradation and leakage. This simplification maintains sealing reliability while eliminating the complexity and potential failure points associated with gasketed flange connections.
3Loss of energy
If the straining element is positioned to increase area in flow path, then pressure drop decreases, but the angular relationship between debris collection chamber and flow path increases
Solution Approach 1:
The patent optimizes the spatial arrangement of the straining element by extending it along the flow path direction and positioning it to maximize its filtering surface area. This dimensional repositioning allows the straining element to intercept more flow while maintaining a compact angular relationship with the debris collection chamber. The straining element is configured to span across the flow path at an optimized angle that balances surface area exposure with chamber geometry constraints.
Data Source
AI summary
A pipeline strainer having a body with a straining element therein. A portion of the straining element is in the path of fluid flowing from the inlet to the outlet of the body. A first end of the straining element may be parallel to the inlet, or may be coextensive with the inlet. The second end of the straining element may be disposed proximate a debris drain. A first axis from the inlet for fluid to the outlet for fluid and a second axis from the inlet for fluid to the debris drain may form an angle of less than 30°. A rotatable plug may be disposed in the debris drain. The straining element may include at least one corrugation. A cover plate may be removable secured to the bottom of the body of the pipeline strainer.