Cryogenic
Storage Tanks
VTV
references include more than 45 cryogenic tanks of single wall
and double wall configuration using carbon steel, aluminum alloy
steel, stainless steel and 9% Nickel steel along with handling,
refrigeration and vapourising facilities for a wide variety of
service conditions.
VTV designed and constructed its first cryogenic storage terminal
in 1972 for the Rourkela Steel Plant. This Project involved the
design, procurement, fabrication, erection, testing and commissioning
of a 1000Mt. Liquid Oxygen Tank four 100cu.m. gaseous oxygen vessels,
liquid and gaseous oxygen filling and transfer lines. The liquid
oxygen was stored at -183deg. C in a 12 m dia. Aluminium alloy
sphere suspended within a steel container holding expended perlite
insulation in dry inert atmosphere. A very sophisticated instrumentation
system was designed for the facility to ensure safe operation.
VTV's R&D department successfully developed inhouse MIG welding
machines for carrying out aluminum alloy welding on this LoX tank
and portable field units for expanding the perlite ore-35 million
cu.cm of ore was expanded to 20 times its volume for filling the
annulus of this tank.
VTV subsequently handled the engineering, procurement and construction
of LoX storage and handling facility for the Bhilai steel plant
including a 2000 Mt. LoX tank, lox intake pipework, lox pump out
facilities, a steam heated vapourisers and electrical & instrumentation
works for the storage plant operation. VTV Lox and LiN terminals
are in service in a large number of steel and petrochemical plants,
in India. Concurrently, the growth in the fertiliser industry
in the Indian subcontinent provided opportunities for VTV to handle
the engineering, procurement and construction of refrigerated
ammonia storage terminals for an array of Fertiliser Corporations
in India, Bangladesh and Sri Lanka. VTV's involvement in providing
indigenous expertise for cryogenic storage facilities to the steel,
petrochemical and fertiliser industry during their early years
of growth and development form the bedrock of VTV's cryogenic
engineering and construction credentials. In the mid-eighties
VTV pioneered the EPC execution of an Ethylene/C2C3 cryogenic
storage terminal for IPCL consisting of 4 nos. 9% Nickel storage
tanks. This project heralded a new phase of growth for the company
in the cryogenic sector which resulted in the execution of a range
of projects for the storage of Ethylene, Propylene and C2C3 for
India's petrochemical industry.
VTV has specialized in the construction of double wall tanks by
hydraulic jacking. Having constructed 12 tanks of 9% Nickel VTV
has also developed a substantial 9% Nickel fabrication and welding
experience both by the SMAW and SAW process.
