HEAT EXCHANGER Russian patent published in 2007 - IPC F28D7/00 

FIELD: chemical, petrochemical and other industries.

SUBSTANCE: proposed heat exchanger has shell, floating head tubular grill, heat exchanger tubes, fixed tube plate, distributing chamber with cover, hatch for mounting tube bank, branch pipe to remove remnant of product, drain branch pipe, liquid product inlet branch pipe, branch pipe to let out and let in gas or liquid, product vapors discharge branch pipe and inspection hatch. Ratio of outer diameter of shell to length of heat exchange tubes in proposed device is 0.14-0.26; ratio of diameter of heat exchange tubes to outer diameter of shell is 0.02-0.14; total number of heat exchanger tubes is within 13 and 1701; heat exchange surface at length of heat exchange tubes lying within 1 and 9 m, is within 1.0-961 sq. m; area of flow section in segment cutouts of partitions is within 30 and 1640 sq.m; flow section area between partitions is within 50 and 1870 sq.m; area of section of one pass of heat exchange tubes is within 40 and 3750 sq.m; ratios of outer diameter D_o of shell to diameters of nominal bore of unions for tube and inter-tube spaces are equal, lying within 1.9-4.0.

EFFECT: increased efficiency of operation.

1 dwg