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Capacities from 200
gph to 3000++ gph
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For Propane,
Butane, and other LPG
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Shell-and-Tube Heat Exchanger
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ASME
"U"-stamped
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Ex-proof Class I, Div 1, Group D
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Small Footprint,
High Efficiency
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PLC Controls with
First-Out Monitor
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Local Start/Stop Station
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Dual
Liquid Carryover Protection with
"Smart" Liquid Carryover Function and
Ultrasonic Liquid Level Control
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UL
stamped external Relief Valve
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All-welded Liquid Inlet Assembly
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Flanged Steam Inlet
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Electronic Steam Temperature Regulator with pneumatic positioner
(Spirax Sarco)
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Steam Back Check
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Steam Trap
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Electronic Operator Interface with high-resolution color
LCD Display and Touch Screen; Alarm
History; local trend recording; VNC server for remote
monitoring and control.
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Option: Walk-in Control
Room
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Option: Integration
with LPG/Air Mixers for Standby Systems and
Peak Shaving Systems
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General Description
Alternate Energy
Systems offers a complete line of vertical steam vaporizers in
standard capacities from 200 gallons per hour to 3000 gallons per hour.
Higher capacities are available.
The
steam tube is of multi-pass design to transfer the maximum heat to the
liquid. The tube bundle and all propane piping conform to Section VIII,
Division I of the latest edition of the ASME Boiler and Pressure Vessel
Code. The pressure vessel carries the ASME ”U” stamp and is National
Board registered.
VSV vaporizers in
standard configuration include an electronic steam temperature regulator
with pneumatic positioner (Spirax Sarco); dual liquid
carryover protection through ultrasonic liquid level transmitter in the
pressure vessel, and “smart” liquid carryover protection with Rosemount
pressure transmitter and temperature transmitter in the vapor outlet;
liquid inlet valve (solenoid valve); steam trap; and steam back check
valve. Temperature gauges in steam inlet and outlet, and in pressure
vessel shell and vapor outlet are standard.
Vaporizer design,
wiring, controls, and electrical components and their installation
comply with the latest editions of NFPA #58 and NFPA #70. All electrical
components on the vaporizer comply with Class I, Div 1, Group D.
All safety devices of
the vaporizer, including the dual liquid carryover protection, are
monitored by a programmable logic controller (SIEMENS or Allen-Bradley),
which is connected to an electronic operator interface with
high-resolution color LCD and touch screen. The operator interface provides start/stop control
for the vaporizer; it displays the system status, and any failure
conditions that may occur, in plain English (with date/time stamp). The
electrical enclosure for the PLC and the operator interface are to be
installed in a remote, non-classified location.
A small explosion-proof
enclosure at the vaporizer provides local start/stop and alarm reset
functions.
The electronic operator
interface also provides graphic TrendLine recording, first-out memory
(Alarm History), and built-in VNC server for remote monitoring and
control of all vaporizer function via the built-in Ethernet interface.
NOTE:
The steam consumption of
VSV Steam Vaporizers is proportional to the actual vaporization rate. As
a "rule of thumb", 1 lb. of steam is required for each gallon of liquid
LPG (1 kg of steam for 4 kg of liquid LPG). |
