Cleaning of heat exchanger tubing

Details Cleaning of heat exchanger tubing Cleaning of heat exchanger tubing

F - Mech Eng,Light,Heat,Weapons

28

G

257/1

F28G 1/02 (2006.01) F28G 1/12 (2006.01)

Patent

CA 1116162

CLEANING OF HEAT EXCHANGER TUBING Abstract A heat exchanger of the steam condenser type or the like includes a plurality of bundles of tubes through which cooling water is pumped. The downstream ends of the tubes open into a chamber and these ends have basket-brush assemblies thereon. A water back-flow cover traverses progressively across the tube ends, with the cover being fluidically connected to a pump. The pump inlet receives water from the chamber and pumps it back through the tubes at a high pressure, carrying the cleaning brushes with it. When the said cover has passed particular tubes, the brushes in the latter are reversed in direction and carried downstream and hack to their original position. The pump may be disposed to suck the water upstream through the tubes, or may be disposed to supply water from upstream of the condenser to the downstream tube ends. -0-

328941

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