EVERSENDAI ENGINEERING – HIGH PRESSURE HYDRO TESTING – 1500BAR (UNIT 4)

To perform a high pressure hydro testing job for Ever Sendai Engineering at Tanjung Bin unit 4 boiler feed water lines, for duration of 3months.

Application of pressure from 800bar – 1200bar using a diesel driven high pressure pump at 20 000psi with 55lpm Hammelman pump. As for safety precaution a NRV non return safety valve al 20 000psi was used while the testing process.

A high pressure filling pump also used on the boiler water filling at 2000lpm with 10bar electrical driven at 3 months duration too.

Job done successfully while appreciated by Alstom & Malakoff site engineers.

LOTTE TITAN PE3 SHUTDOWN – CONDENSER CLEANING PROJECT

UHP cleaning :

Consisted 9 shell and tube heat exchangers need to be mechanically remove and refit channel heads. Apply UHP lancing 30 000psi with 3nos diesel driven pump to lance internal tube section for 9 nos shell & tube bundle. After all the internal residue / polymer being removed an inspection was carried out. Upon successful cleaning and inspection the units are ready for box up.

Finally a hydro testing carried out to satisfy owner.

Chemical cleaning :

3nos bearing jackets done internal shell side chemical cleaning using (REDLYME) industrial water based biodegreaser to circulate and flush internal shell side to remove the residue any oily surface till achieve 90% of cleanliness.

The coolers internal cleaning done in parallel for each jackets. The system was circulated for 2hrs with fresh water & 4hours with biodegreaser till achieve the required standard.

It took  36hours to complete the descaling process for 3 jackets.

Finally a hydro testing carried out to satisfy owner.