METHOD OF ASSEMBLING TUBULAR HEAT EXCHANGER, TUBULAR HEAT EXCHANGER AND METHOD OF RESTORING TUBULAR HEAT EXCHANGER (VERSIONS) Russian patent published in 2009 - IPC B23P15/26 B23P11/00 F28F9/16 B21D53/02 

FIELD: engines and pumps, heating.

SUBSTANCE: proposed tubular heat exchanger comprises two heat exchanger section tube plates with the holes wherein attached are heat exchanger tubes to form tight joints. The heat exchange tubes fitted into tube plates, the pre-assembled heat exchange section tube plate is directed upward. Note that the anaerobic adhesive is applied on the tube plate outer surface edge and its each extending part in the amount corresponding to the volume of circular gaps between each tube and the mating hole in the tube plate to completely fill the circular gaps. Then, the joints are cured to form a polymer composition in the gap spaces. The said tubular heat exchanger is restored by separating heat exchange tubes from the tub plates and destructing the aforesaid polymer composition in the said gaps. The heat exchange tube and tube plate inner and outer surfaces are cleaned of dirt, worn-out tubes are replaced. Now, the re-assembly of heat exchange tube with tube plates is effected as described above. Similarly, the tubular heat exchanger with soldered, welded or flanged permanent joints can be restored.

EFFECT: simpler assembly and repair of tubular heat exchangers.

9 cl, 14 dwg, 5 ex