Eclipse ImmersoJet v2.20 Design Guide 330, 10/02
.
B
URNER
M
ODEL
S
ELECTION
(
CONTINUED
)
Figure 3.1 Capacity Guide
Applications requiring special consideration:
ImmersoJet burners are used for firing spray wash tanks, dip tanks,
and storage tanks such as those used for fire sprinkler systems.
Generally, the small bore system can be used wherever conventional
immersion burner systems are used, except where high heat flux off
the small bore tube can break down the tanks contents.
Zinc phosphate solutions
High heat fluxes break down the phosphate, forming a heavy
insulating sludge which deposits on tube surfaces and causes
rapid tube burnout. To reduce early tube failure, make the
immersion tube with electro-polished stainless steel, and limit
the burner to capacity shown in the limited capacity portion of
Figure 3.1 based on tube size.
Iron phosphate solutions
These are susceptible to the same problem described above for
zinc phosphate solutions. To reduce early tube failure, make the
immersion tube with stainless steel. Electro-polishing is not
required. Limit the burner to capacity shown in the limited capacity
portion of Figure 3.1 based on tube size.
Cooking oils
To avoid burning the oil, limit heat flux to 50 Btu/hr per square
inch of tube area.
Highly viscous liquids
All immersion systems depend on natural convection currents to
carry heat away from the tube and throughout the tank.
Convection is minimal in high viscosity solutions, such as asphalt,
residual oil or molasses. This can severely overheat the liquid
around the tube..
c
Caution
Do not use the ImmersoJet for highly viscous fluids
Select burner model
Choose a burner model with a maximum capacity greater than the
gross burner input calculated previously. Refer to Figure 3.1.
12
2” IJ
V
2
2
50
190,000
55
235,000
69
370,000
108
3” IJ
V
2
3
80
440,000
129
550,000
161
850,000
249
4” IJ
V
2
4
100
830,000
243
1,000,000
293
1,800,000
527
6” IJ
V
2
6
150
2,000,000
586
2,500,000
732
3,600,000
1054
8” IJ
V
1
8
200
n/a
n/a
n/a
n/a
8,000,000
2344
Model
Tube Size
mm
Low-Pressure
Packaged Blower
Btu/hr. kW
High-Pressure
Packaged Blower
Btu/hr. kW
Remote Blower
Btu/hr. kW
in.
Limited Capacity
Zinc
Phosphate
Iron
Phosphate
Btu/hr.
kW
110,000
32
Btu/hr.
kW
220,000
64
1,800,000 527
3,600,000 1055
250,000
440,000
1,000,000
73
129
293
500,000
880,000
2,000,000
146
258
586
