F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/16
F28F 5/00 (2006.01)
Patent
CA 1088919
ABSTRACT The present invention relates to the field of fluid heat exchangers. Prior art heat exchangers cannot be readily expanded in size to handle the large volume of gas required in many applications. Moreover, the abra- sive contaminants contained in flue gasses cause consider- able wear in some prior art heat exchangers, while in other prior art exchangers contaminants accumulate re- sulting in a reduction in handling capacity and effi- ciency. The heat exchanger of the present invention includes a plurality of elongated, generally parallel, continuous tubes. The lower ends or outlet ends of these tubes are rigidly secured to a platform, which platform provides vertical support for the tubes. The upper ends of the tubes are coupled to a bulkhead which bulkhead floats within the heat exchanger frame, that is, the bulkhead is free to move in the vertical direction. The bulkhead is coupled between an inlet transition member and the upper ends of the tubes. Spacer sheets are dis- posed within the heat exchanger frame to assure that the elongated tubes in these sheets, thus allowing the tubes to freely expand. Fans are mounted on the heat exchanger frame to provide a cross flow through the tubes. The continuous, straight tubes do not significantly wear from an abrasive fluid nor do they provide surfaces where contaminants are likely to accumulate. Moreover, these tubes may be readily cleaned.
312935
Gowling Lafleur Henderson Llp
Smith Engineering Company
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