Geothermal Probe Connector With Solid-Separating Deflection Section
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Solution Overview
Problem
Geothermal probe systems face operational reliability issues due to wear and tear caused by solids carried in the heat carrier, which existing connection pieces fail to effectively minimize or eliminate.
Innovation Solution
A connection piece design with a small deflection radius, where the inlet and return sections are separated by a common wall, allowing solids to be deposited in a trunk section, ensuring low-wear operation and increased maximum permissible operating pressure through optimized flow behavior and reinforcement elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional connection piece with separate tube sections is used, then the structure is simple and easy to manufacture, but solids carried in the heat carrier cause wear and tear and damage to the geothermal probe system
Solution Approach 1:
The patent converts the harmful effect of solids carried in the heat carrier into a beneficial separation process. By designing the connection piece with a deflection section and trunk section, solids are intentionally directed out of the flow path and deposited in the trunk section, transforming them from a wear-causing hazard into a separable component that protects the geothermal probe system.
Solution Approach 2:
The connection piece is segmented into distinct functional sections: an inlet section, a deflection section with a specific deflection radius, and a trunk section. This segmentation allows the solid particles to be separated from the fluid flow through the deflection section and collected in the trunk section, preventing them from causing wear in the geothermal probe system while maintaining structural integrity.
2Reliability
If the deflection radius of the deflection section is reduced, then solids are effectively deposited in the trunk section, but the wall thickness must be increased to maintain structural integrity
Solution Approach 1:
The patent applies local quality by differentiating wall thickness across different sections of the connection piece. The deflection section has optimized wall thickness tailored to its specific functional requirements for particle separation, while the inlet and return sections have wall thicknesses optimized for their respective pressure and flow conditions. This localized optimization allows reduced deflection radius for effective solid deposition without compromising overall structural integrity.
3Ease of manufacture
If the inlet and return sections are completely separate, then manufacturing is easier, but flow behavior is suboptimal and solids cannot be effectively removed
Solution Approach 1:
The patent merges the inlet section and return section into a single integrated connection piece structure, connected through the deflection section. This merging creates an optimized flow path that guides the heat carrier and separates solids effectively, while still maintaining manufacturing feasibility through conventional processes. The integrated design ensures proper flow behavior and effective solid removal that separate tube sections cannot achieve.
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 design effectively removes solids from the flow path, ensuring safe and reliable operation by depositing them in the trunk section, while allowing for higher operating pressures and compact design with enhanced material choices and reinforcement.
Implementation Method 1
Due to the small deflection radius of the deflection section obtainable according to the invention, the transverse acceleration acting on the solids is increased, which are thus deflected out of the flow path in the area of the branch section of the trunk section and absorbed in the trunk section.
Implementation Method 2
Furthermore, due to the configuration according to the invention, the wall thickness of the connecting piece can be increased while retaining the external dimensions of known connecting pieces, with the result that a higher maximum permissible operating pressure is achieved.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The connector (2) has a terminal side (18) of extending in an inlet section (4), where the inlet section and the return section (6) are separated by a common wall (7) from each other in some areas. The wall thickness of the common wall between the inlet section and the return section is less than the sum of the wall thickness of the inlet section and the wall thickness of the return section. An independent claim is also included for a method for removing solids from the flow path of a heat transfer medium of a geothermal probe assembly.