Monday, 10 September 2012
This Valve Test Bench was designed and built in house by the Team at Techno. It can Gas and Liquid test most valve types from 1" to 12". Tests include envelope, seat & backseat pressure test, from either upstream or downstream of the valve, in either Automated or Manual mode.
Wednesday, 02 June 2010
We have recently (April 2010) completed work for our valued client, Chevron South Africa Cape Town Refinery, in their 2010 Turnaround.
This was a major Turnaround with much of the plant being shutdown and refurbished.
Our particular emphasis and input was on the FCCU (Fluid Catalytic Cracking Unit) Plant 63, where we performed key roles in Hydro Cutting, On Site Machining and Component Supply.
The Hydro Cutting consisted mostly of pipe cutting at various levels of this 60 plus meter high structure. These pipes ranged from 600mm to 900mm in Diameter, all with refractory (heat resisting cement) on the inside of these lines.
We also performed various OnSIte Machining functions with Flange Face Machining and Gramaphone finishes on flanges ranging from 1” to 10”.
The last but most important achievement, was that of implementing a ‘Dry Cutting Technology’ to remove the dome (top of tank) off a Large diameter Vessel. This was performed on the Regenerator (Large Boiler Tank) measuring 6.1 meter in diameter.
This dry cut consisted of cold mechanical cutting to cut through the steel shell with 20mm Steel wall, followed by a grinding operation to slice through the 100mm Refractory (Heat resisting cement) lining on the inside.
This ‘Dry Cutting Technology’ was adapted and engineered specifically for this project and is a first, to our knowledge, in this country.
The process went well under these circumstances and achieved in planned time and constraints.
The slit or cut included an angle (weld bevel or prep) further reducing the downtime of the FCCU and scheduled work.
The major reason for this ‘Dry Cut’ was to limit water ingestion inside the Regenerator Vessel, which would cause much delay in cleaning of the resulting slop.
The ‘Dry Cut’ therefore made it possible to enter and work inside the Regenerator immediately after the Dome was lifted.
Further benefits of cutting the Dome off in this manner was that the Dome could be lifted with all its internal attachements (Cylones) improving accessability to parts under repair.
This was a major Turnaround with much of the plant being shutdown and refurbished.
Our particular emphasis and input was on the FCCU (Fluid Catalytic Cracking Unit) Plant 63, where we performed key roles in Hydro Cutting, On Site Machining and Component Supply.
The Hydro Cutting consisted mostly of pipe cutting at various levels of this 60 plus meter high structure. These pipes ranged from 600mm to 900mm in Diameter, all with refractory (heat resisting cement) on the inside of these lines.
We also performed various OnSIte Machining functions with Flange Face Machining and Gramaphone finishes on flanges ranging from 1” to 10”.
The last but most important achievement, was that of implementing a ‘Dry Cutting Technology’ to remove the dome (top of tank) off a Large diameter Vessel. This was performed on the Regenerator (Large Boiler Tank) measuring 6.1 meter in diameter.
This dry cut consisted of cold mechanical cutting to cut through the steel shell with 20mm Steel wall, followed by a grinding operation to slice through the 100mm Refractory (Heat resisting cement) lining on the inside.
This ‘Dry Cutting Technology’ was adapted and engineered specifically for this project and is a first, to our knowledge, in this country.
The process went well under these circumstances and achieved in planned time and constraints.
The slit or cut included an angle (weld bevel or prep) further reducing the downtime of the FCCU and scheduled work.
The major reason for this ‘Dry Cut’ was to limit water ingestion inside the Regenerator Vessel, which would cause much delay in cleaning of the resulting slop.
The ‘Dry Cut’ therefore made it possible to enter and work inside the Regenerator immediately after the Dome was lifted.
Further benefits of cutting the Dome off in this manner was that the Dome could be lifted with all its internal attachements (Cylones) improving accessability to parts under repair.
