| 摘要 |
A heat exchanger construction is disclosed herein that is assembled from selected prefabricated components which include an outer shell for housing a tube assembly having a plurality of tubes carried as a unit by tube sheets and having snap-lock retainers releasably secured to the shell for holding the tube unit circulating fixed position within the shell. Means are provided for circuhating one fluid through the tube and for circulating another fluid around the tube within the shell for effecting an exchange of heat therebetween.
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