A successfully completed repair for a heat exchanger
The exchanger was manufactured by 天博体育 in 1988. Most of leakage problems occur after upsets in the plant operating conditions, and/or long-term use of the equipment. During the preliminary meeting, the team expertised the equipment and defined the type and location of the leakages.
The expertise showed :
- A significant leakage between two active layers
- A leak between active and inactive sections
On the basis of these conclusions, a repair procedure was established by 天博体育 service team in Golbey, before being explained to and approved by the customer.
天博体育 welders, on the customer’s site, grinded and repaired the heat exchanger by welding the two internal leakages. At the end of the operation, all the new welds were controlled by Non-Destructive Tests (NDT) related to pressure vessel regulation: dye penetrant test, x-ray, strength test and tightness test.
The repair itself was done in less than one week. Thanks to this successful operation, the client started up again its production at the nominal conditions at which the unit had been shut down before the repair.
天博体育 after sales service in Golbey, France, undertakes around 30 on-site services per year, on heat exchangers from its own design or not. These repairs are performed by highly skilled welders, trained and educated at 天博体育 in-house welding school in Golbey, France.
Updated on March 2021