MODEL
DC-250
ELECTROSTATIC PRECIPITATION & DESALTING
CELL
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APPLICATION
For experimental use . To
establish optimum parameters which enhance the formation and cause the
precipitation of water droplets in
an emulsion such as a crude oil under dynamic flow conditions of high pressure
and temperature by means of the application of a high electrical potential
across the fluid.
DESCRIPTION
The Model DC-250 is made up of two components : the Desalting Cell and a
Power Supply Unit . Fluid flow control through the Cell must be provided by the
user .
The Desalting Cell consists of a flanged stainless steel high pressure
housing 16 in. (40 cm) long by 2 in. (5 cm) ID , with a volume capacity of
approximately 50 cu. in. (820 ml).
It has double "see through" tempered borosilicate glass windows for
observation of the fluid.
At
the lower end it contains an adjustable fluid inlet discharge tube which allows
introduction of the test fluid at any selected level in the cell below the
electrodes. Discharge is oriented
in the horizontal plane through twelve
.082 in. (2 mm) ID orifices.
At the lowest point in the cell , a needle drain valve is located ,to
allow removable of precipitated water .
Attached to this valve is a water cooled condenser coil to prevent
flashing when taking samples at elevated temperatures.
At
the upper end of the test chamber , adjustable flat circular grids electrodes
oriented horizontally extend into
the Cell , and allow electrode
spacing from one to four inches (25 to 100 mm) at potentials up to 3,000
Volts. Also located at the top
flange is a sampling needle valve with condenser coil , an adjustable 50 to 350
psi (.35-2.4 MPa) pressure relief valve followed by a ball shut-off valve. Thermocouple probes for fluid inlet and
outlet temperatures are provided.
All components are stainless steel .
The Cell is mounted on a free standing base approximately 12 x 12 in. (30
x 30 cm) and allows for inlet tube level adjustment and positioning of a
graduated beaker for precipitate removal.
Overall height is 37 in. (94 cm) suitable for placement on a low lab
bench.
Power Supply unit is portable and merely supplies adjustable electrical
potential up to 3,000 volts.
Potential and power level are displayed on a voltmeter and ammeter. Also incorporated is a digital
temperature indicator with plug in jack and selector switch for monitoring
fluid-in and out temperatures.
RATINGS:
Maximum Operating Pressure
500 PSI
(3.45 MPa )
Maximum Operating Temperature
300 F
(150 C)
Maximum Operating Potential
6,000 Volt
INSTALLATION NEEDS:
115 Volt - 2 Amp - 50/60 Hz
Cooling Water for Condenser Coil
Can be configured for other Voltages/Hz with addition of external transformer
SIZE & WEIGHT:
Cell: 12"x12"x37" High (30x30x94 cm)
72 LB (33 Kg)
Power Supply: 8"x14"x8" High (20x35x20 cm)
15 LB (7 Kg)
SHIPPING
Boxed, 20"x40"x24" High (51x102x61 cm)
Weight , 128 LB (58 Kg)