Tube Tech removes 140 years of building grime
Removing over 140 years worth of grime from any building would be a challenge to most cleaning contractors. Add to this the fact that the building is a Grade 1 listed building, closely monitored by both English Heritage and the Victorian Society, and you have just the kind of challenge which Tube Tech International Ltd love to take on. The towns museum was significant in the development of 19th century architecture, the history of its University, and in the study of science in England. The result is as spectacular today as when it was first opened.
A UK based international petrochemical company shipped a severely fouled styrene polymer bundle to Tube Tech in order to minimise costs as they own an identical changeover replacement already. A production anomaly led to a thick, hard, brittle deposit forming on the shell side of the bundle and also severe bend blockages in tubes. Our challenge was develop a method to unblock polymer from the U Bends within a small 2m square footprint in front of the exchanger so in future it could be cleaned in-situ, saving on crane costs, scaffolding, damage, gaskets, bolts and third party costs. A triple lance feeding mechanism was modified to allow lances to negotiate and unblock the every U-Tube. The client correctly pointed out that it was a pointless exercise if only the straight section was cleaned and the hairpin bend left blocked. By using Tube Tech’s globally patented Plate and Shell Jet every last particle of fused polymer was removed, even from deep inside the bundle. All the tubes were unblocked, descaled and polished using the modified triple lancing method.