Heat Exchanger Port Insert With Multi-Position Fastening Projections
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Solution Overview
Problem
Existing filter arrangements for plate heat exchangers require multiple configurations for different connection standards, and removal of port inserts is often difficult due to loose handles.
Innovation Solution
A port insert design with a flange featuring a first fastening projection that engages with connection means, allowing for a single configuration to fit various connection standards and facilitates easy removal by providing multiple engagement points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple filter arrangements with different flange diameters are provided for different connection standards, then each connection standard can be accommodated, but the device complexity and inventory requirements increase
Solution Approach 1:
The flange is designed with multiple fastening projections that can engage with connection means arranged at different positions and configurations. This universal design allows a single filter arrangement to accommodate various connection standards (different numbers, positions, and configurations of studbolts) without requiring multiple specialized filter arrangements for each connection standard.
2Ease of operation
If handles are welded to the flange for easy removal of the port insert, then removal is facilitated, but the handles may come loose when pulled making removal difficult
Solution Approach 1:
The handles are extracted from the flange structure entirely. Instead of being welded to the flange, the fastening projections themselves serve as the removal mechanism. The connection means (studbolts) can be used to grip and pull the port insert directly, eliminating the reliability issue of welded handles coming loose while maintaining ease of removal.
3Manufacturing precision
If the flange is dimensioned to enable studbolts to engage with the outer edge for proper positioning, then centering is achieved, but the design must be customized for each connection standard
Solution Approach 1:
The flange incorporates multiple fastening projections positioned at different locations around the flange perimeter. Each projection can engage with connection means at different positions, allowing the same flange design to achieve proper centering and positioning for various connection standards. The local engagement points provide the necessary precision while the overall design remains universal.
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
A heat exchanger port insert (38, 40) is provided. It comprises a tubular portion (42, 56) and a flange (44) projecting from an outside (52, 58) of the tubular portion (42, 56). The heat exchanger port insert (38, 40) is characterized in that the flange (44) comprises an annular inner portion (46) and a first fastening projection (48) having an outer contour (60). The inner portion (46) comprises an annular inner edge (50) along which the inner portion (46) joins the tubular portion (42, 56). The first fastening projection (48) protrudes from an annular outer edge (54) of the inner portion (46) so as to give the flange (44) a locally increased width at the first fastening projection (48).