Flange Structure for Exhaust Pipe Angle Absorption
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Solution Overview
Problem
Conventional flange structures face issues with unstable welding and increased flow resistance when connecting exhaust pipe ends with different angles, leading to poor gas flow and manufacturing challenges.
Innovation Solution
A flange structure with a central axis of the in-flange flow path slanted at an acute angle relative to the exhaust pipe's central axis, allowing for communication between flow paths with reduced angle change and incorporating a tapered inner surface to support the pipe and facilitate welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the bent front end part of the exhaust pipe is inserted and fixed by welding to the vertical flange of the inclined end face, then the exhaust pipe can be mounted at an inclined angle, but the fitting portion becomes shaky and unstable making it difficult to attain good welding
Solution Approach 1:
The patent introduces an intermediary structure (the inclined end face with specific geometry) between the vertical flange and the bent exhaust pipe end. This intermediary structure provides a stable fitting surface that accommodates the inclined angle requirement while ensuring proper alignment and stability for welding, eliminating the shakiness problem.
Solution Approach 2:
The patent changes the geometric parameters of the flange structure by introducing an inclined end face with a specific inclination angle. This parameter change allows the exhaust pipe to be mounted at the required inclined angle while maintaining welding stability through proper surface alignment.
2Reliability
If the front end side of the exhaust pipe is formed straight to avoid welding problems, then welding stability improves, but the middle part of the exhaust pipe must be bent with smaller curvature increasing ventilation resistance
Solution Approach 1:
The patent segments the exhaust pipe structure into distinct portions: a straight front end part for stable welding and a bent middle part for angle adjustment. This segmentation allows the straight portion to provide welding stability while the bent portion can be optimized for minimal flow resistance.
Solution Approach 2:
The patent resolves the conflict by utilizing spatial arrangement in multiple dimensions. The straight front end maintains welding stability in one dimension, while the bent middle section adjusts the flow path in another dimension to minimize resistance, allowing both requirements to be satisfied simultaneously.
3Object-generated harmful factors
If the exhaust pipe is bent with larger curvature to maintain good flow, then ventilation resistance decreases, but the middle part must be positioned differently affecting the overall pipe layout
Solution Approach 1:
The patent creates a dynamic balance between flow optimization and spatial configuration. The bent middle part with optimized curvature allows large curvature for good flow, while the overall layout is dynamically arranged to accommodate this bending without compromising the connection geometry.
Data Source
AI summary
A flange structure for connecting together two members each having a flow path with different angles which can control an increase in flow resistance and can realize easy and stable manufacture can include a first member and a second member connected to each other through a flange. A central axis of a flow path of the second member can be slanted at a first angle with respect to a central axis of a flow path of the first member. The flow path of the first member and the flow path of the second member are allowed to communicate with each other by an in-flange flow path formed in the flange, and a second angle constituted of an acute angle between a central axis of the in-flange flow path and the central axis of the flow path of the first member is smaller than the first angle.