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Construction
Diffusion-bonded heat exchangers are constructed from flat metal plates into which fluid flow channels are either chemically etched or pressed. The required configuration of the channels on the plates for each fluid is governed by the temperature and pressure-drop constraints for the heat exchange duty and the channels can be of unlimited variety and complexity. Fluid contact can be counterflow, crossflow, co-flow or a combination of these to suit the process requirements.
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Finally, fluid headers and nozzles are welded to the core in order to direct the fluids to the appropriate sets of passages. No gaskets or braze material - potential sources of leakage, fluid incompatibility and temperature limitations - are required for exchanger assembly. Mechanical design is normally to ASME VIII Division 1. Other design codes can be employed as required. | ||
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Animated Construction Sequence Video
Click here to download the animated construction sequence.
Please note that you will need Windows Media Player to be installed in order to view the video. Clicking the link will play the video from the web site once it has been downloaded. If you wish to save the video to your hard disk for later viewing, right-click the link and choose 'Save Target As' from the pop-up menu.
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