Compact Pipe Bend for Heating Systems with Arc Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe bends for exhaust gas routing in heating systems are unsuitable for modernization in existing chimneys due to their large cross-sectional requirements, complex designs, and weight, which hinder installation and flow efficiency.
Innovation Solution
A compact, lightweight pipe bend with angled sections (less than 90°) and a circular arc design, featuring a suspension device and a condensate drainage system, including a bead or groove on the inner wall, to minimize flow losses and facilitate installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional pipe bend with 90° angled sections is used, then the connection to heating system and exhaust gas chimney is achieved, but the cross-sectional requirement of the chimney becomes relatively large
Solution Approach 1:
The patent applies curvature by replacing the traditional 90° angled pipe sections with a circular arc bend section. This curved design allows the pipe bend to navigate the 90° turn within a smaller radial space, reducing the required chimney cross-section while maintaining the same functional connection between heating system and exhaust outlet.
2Area of stationary object
If a pipe bend with large transverse extension is used, then the connection to heating system is achieved, but the chimney cross section requirement increases
Solution Approach 1:
The patent segments the pipe bend into three distinct functional sections: a first pipe bend section for heating system connection, a circular arc bend section for the 90° transition, and a second pipe bend section for exhaust chimney connection. This segmentation allows each section to be optimized independently, achieving compact overall dimensions while maintaining connection functionality.
3Area of stationary object
If a T-shaped pipe arrangement with right angle intersections is used, then the straight line connection to exhaust gas chimney is achieved, but the pipe bend width becomes relatively large
Solution Approach 1:
The patent replaces the T-shaped arrangement with right angle intersections with a circular arc bend that smoothly transitions between the heating system connection and exhaust chimney connection. This curved geometry eliminates the need for wide perpendicular extensions, reducing the overall pipe bend width while maintaining the straight-line exhaust gas path.
4Ease of operation
If a ceramic pipe encapsulated in lightweight concrete is used, then the pipe bend can be connected to other pipes via plug-in connections, but the weight becomes relatively high
Solution Approach 1:
The patent changes the material parameters by using plastic (polypropylene) instead of ceramic encapsulated in lightweight concrete. This material substitution significantly reduces the weight of the pipe bend while maintaining the plug-in connection capability, making the component easier to handle during installation inside the exhaust stack.
5Reliability
If the pipe bend sections are arranged at 90° to each other, then the connection geometry is simple, but condensate can flow into the connection area and damage the sealing device
Solution Approach 1:
The patent applies local quality by creating a condensate drainage structure specifically in the circular arc bend section. The inner wall of this curved section is shaped to form a condensate drain that channels condensate away from the critical sealing areas, protecting the sealing devices while maintaining the compact 90° connection geometry.
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 solution allows for safe, efficient connection to heating systems, reduces weight and cross-sectional requirements, and ensures reliable condensate drainage, enabling easier installation and improved flow properties.
Implementation Method 1
the two pipe bend sections (11, 12) are at an angle of less than 90°, preferably 87° to each other
Data Source
Figure 1~2
Figure 3~5
AI summary
The bent tube (10) has two bent tube sections arranged concentric to two longitudinal axes. The two longitudinal axes are arranged at right angles to each other. The two bent tube sections are connected to each other by a bent section (15). The latter bent tube section has a smaller length than the former bent tube section. The latter bent tube section has a positive connection, particularly in the form of a threaded connection for connection with an exhaust pipe of the heating system and a sealing unit for the arrangement of a sealing element, particularly in the form of an O-ring.