Global Patent Index - EP 0265549 B1

EP 0265549 B1 19910605 - METHOD OF PRESSURE PULSE CLEANING A TUBE BUNDLE HEAT EXCHANGER

Title (en)

METHOD OF PRESSURE PULSE CLEANING A TUBE BUNDLE HEAT EXCHANGER

Publication

EP 0265549 B1 19910605 (EN)

Application

EP 86115100 A 19861030

Priority

EP 86115100 A 19861030

Abstract (en)

[origin: EP0265549A1] The present invention relates to an improved method of cleaning a tube bundle heat exchanger by removing the buildup of sedimentation or "sludge" which accumulates in the bottom or at other elevations of a heat exchanger vessel through utilization of a repetitive shock wave induced in the water layer above the sludge. The shock wave serves to effectively and safely loosen the products of corrosion and other elements which settle at the bottom of the heat exchanger or steam generator and thereby facilitates their easy removal through flushing and vacuuming the vessel.

IPC 1-7

B08B 3/10; F22B 37/48; F28G 7/00

IPC 8 full level

B08B 9/027 (2006.01); F28G 7/00 (2006.01)

CPC (source: EP)

F28G 7/00 (2013.01); F28G 7/005 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0265549 A1 19880504; EP 0265549 B1 19910605; AT E64189 T1 19910615; DE 3679674 D1 19910711; ES 2022803 B3 19911216

DOCDB simple family (application)

EP 86115100 A 19861030; AT 86115100 T 19861030; DE 3679674 T 19861030; ES 86115100 T 19861030