HEAT EXCHANGE PIPE Russian patent published in 2004 - IPC

FIELD: tubular heat exchangers, boiler units for shipbuilding, metallurgy, power engineering and chemical industry.

SUBSTANCE: proposed heat exchange pipe has spherical recesses directed inside and located in staggered order on outer surface; pipe is made at the following geometric relationships: =0.035-0.175; =0.35-0.70; n=1-5, where h is depth of spherical recesses, mm; t is pitch of spherical recesses along pipe axis, mm; n is number of recesses in cross section; is outer diameter of initial smooth pipe, mm.

EFFECT: intensification of heat exchange.

8 dwg, 1 tbl