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Vertical
Cryogenic Storage Tanks for Liquid Natural Gas
Benefits
of the VT LNG Series
- Inner
Vessel - stainless steel for cryogenic temperatures with
optimized design for lighter weight
- Outer
Jacket - a combined leg and lifting lug system designed
for safe transport, easy lifting and low cost erection using
a single crane
- Insulation
- a proven high quality vacuum-perlite system with molecular
sieve adsorber
- Piping
- stainless steel piping for reliability and long life,
ergonomically arranged workplace, flow diagram and gauges
at eye level, easily accessible valves and safety relief
valve outlets directed away from the operating area
- Valves
- standard with stainless steel bodies and welded connections
- Pressure
Control - an easily adjustable multifunction regulator serves
as pressure regulator, economiser and thermal-relief valve.
- An
aluminum stainless steel cored pressure building coil is
standard
- Instrumentation
- high quality pressure gauge and differential pressure
contents gauge are standard with optional switches, transmitter
and/or telemetry unit
- Safety
- tanks are equipped with dual relief valves with a variety
of options, including additional relief valves and/or rupture
discs, all vents to atmosphere are led to stack, going to
top of tank
PED design - Chart Ferox has been manufacturing cryogenic
tanks in accordance with the new European code "PED”,
the Pressure Equipment Directive, since 1999.
- Pump
Options - pump connection with a thermo-siphon is available
as an option
- Cleanliness
- all tanks and their components are cleaned and certified
for oxygen service
- Outer
Finish - choice of two durable corrosion resistant white
paints, including a new low VOC paint or a standard 2-stage
epoxy-polyurethane paint#
- Transport
- rugged internal supports allow for safe transportation
by road, rail or container
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The
new VT LNG range of cryogenic tanks combines safety, flexibility
and easy economical operation. The VT LNG series includes 21 models
with features industrial gas producers and users want, but could
not get until now. Primary among these features is a high performance,
standard design with a wide range of options to meet most special
needs.
The
VT LNG series is designed for long-term storage of liquefied natural
gas. The VT LNG series is available in capacities from 3.000 to
60.000 liters and maximum allowable working pressures of 19, and
12,6 bar. All VT LNG tanks are produced in accordance with PED,
European Norms, AD 2000, or other national pressure vessel codes,
as required. Tanks outside this range are available upon request.
Finally,
Chart Ferox manufactures customized vertical and horizontal storage
tanks with capacities up to 500.000 liters, as well as supplies
vaporizers, vacuum insulated pipeline and other components needed
to create a complete "customer" installation.
| Flow
Schematic
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Nomenclature
(standard model — not all options shown)
A1
Fill connection
LI Level indicator
PBC Pressure building coil
PI Pressure indicator
R1 Pressure control valve / Economizer
S1 Safety valves, inner vessel
S2 Vacuum safety device
S5 Thermal relief valve, fill line
V1 Bottom fill valve
V2 Top fill valve
V3 Isolating valve, bottom fill
V4 Isolating valve, top fill
V5 Valve, vapor vent / gas outlet
V6 Valve, trycock
V9 Valve, external vaporizer
V12 Valve, evacuation
V14 Valve, safety relief selection
V22 Valve, liquid outlet (VTLNG11-VTLNG60)
V23 Pneumatic actuated valve for remote shut-off
V28 Valve, fill line drain
V50 Valve, LI vapor phase
V51 Valve, LI liquid phase
V52 Valve, LI equalization |
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