Brown Fintube Broshure

ENGINEERED
TANK HEATING
EQUIPMENT
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WHV BROWN FINTUBE?
After analyzing your design parameters/
constraints, we'll recommend an engineered
solution including one or more heater types
sized and fabricated to meet your needs,
a:firm price, timely delivery schedu1es and
a guarantee of your satisfaction.
Benefits of
Brown Fintube Technology
Our :fintube tank and line heaters offer cost
and operational bene:fits for fabricators and
end users.
• Fintubes are more ef:ficient than
bare tubes.
Brown Fintube has been providing heat
transfer equipment since 1939 to thousands
of customers throughout the world. Our
integrated facility in Houston, Texas ensures
close coordination among research and
engineering, sales, service and manufacturing
functions.
• Fintubes are compact, lighter weight,
durable, reliable.
The Brown Fintube
Guarantee
• Fintube heaters are less cost1y to insta1l
and maintain than other types.
Our guarantee of thermal, mechanical
and hydraulic performance is in force for
18 months after shipment or 12 months
after startup, whichever occurs :first
When it is Brown Fintube, it is also quality
materials, welding and fabrication to ensure
the best implementation of the latest
technology.
• Fintube heaters minirnize sediment
accumu1ation.
Compared to bare pipes, Brown Fintube tank heaters induce stronger thermal currents within
the tank because oj their concentrated fintube heating surjace. Product adjacent to the fintube is
heated and nses rapidly due to its lowered sjJecijic gravity, creating a thermal siphon ejject. 1Jlis
in turn, contributes to a higher rate ojheat transjer. In addition, sedimentation is minimized
because the tank contents are agitated and particles are kept in suspension. As a result, heating
surjaces tend to be "sel!cleaning,)) and tank bottom sludge is reduced.
Comparison of Thermal Siphon Effect in Tank
Brown Fintube
WHV FINTUBE HEATERS?
Up to 12 Times the Heat Transfer
Area of Bare Pipe/Tubes
• Fewer fintubes are required for equiva1ent
heat transfer.
Lower Capital Cost
• Extended (fin) surface is less expensive than
equiva1ent primary (bare) surface.
• Smaller and lighter package.
• Less weight and size requires less support and
eases installation.
Low Skin Temperature
• Easy installation. Less field welding required
than bare coils.
• Reduces fouling due to colring, carbonization
and polymerization.
Lower Maintenance Cost
• Reduces corrosion and scaling.
• More durable construction.
Safe for Product
• Heater rninirnizes discoloration or degradation
ofproduct.
• Can be used in heat-sensitive products such as
light hydrocarbons, vegetable oils, syrups and
lube oils.
• Off-the-:floor design expedites tank cleaning.
• Individua1 unit isolation possible with
appropriate va1ving.
• Reduced mean time between tank cleanings
(MTBTC).
• Fewel- welds inside the tank mean fewer leaks.
Less Product Displacement
• Volume-to-heat transfer surface ratios are low.
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SUCTION AND
LINE HEATERS
Brown Fintube manufactures two types of fintube heaters for
suction and in-line heating. The suction heater flange mounts
through a tank manway. The in-line heater can be installed
anywhere in the product pipew1e on either the suction (usually)
or discharge side of the pump. Both types utilize bundled fintube
technology and share a number of common structural elements.
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Open Ended Shell
The Suction Heater
The suction heater lowers pumping costs
by reducing the viscosity of product as it is
discharged from the tank. This is usually far
less expensive than heating the tank's entire
contents to the desired exit temperature.
An optional isolation valve can be fitted to seal
off the fintube bundle from the tank contents for easy inspection
and maintenance. The entire bundle is removable when the valve
is closed without having to empty the tank's contents.
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The Line Heater
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The in-line heater can serve the same functions as the suction
heater although it is totally exteri r to and separate from the tanl<:.
When valved on the inlet side, it can be removed from the line for
any reason, including relocation to a different service, without
draining the tank. A single line heater can also service multiple
tanks.
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Brown Fintube
HOWWEDOIT
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Our proprietary resistance welding process produces a permanent
:fin-to-tube weld that actually is stronger than the :finmeta1 itself. It assures
no air gaps or trapped dirt or flux that can diminish :finefficiency and
dw"ability.The expansion/ contraction from repeated heating/ cooling
cycles will not separate :finfrom tube. The :fins reinforce the tube giving
strength, durability and long life to the entire assembly. Destructive
"pull" tests have shown :finbeing destroyed before weld separation.
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‫ז‬ank
Manway
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‫ז‬ank
Liquid Outlet Nozzle
Mounting
Flange
Heating Medium
Inlet Nozzle
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Vent COu_p_lin
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Drain Coupling
Heating Medium
Outlet Nozzle
Design Flexibility
Standard tube sizes range from 3/4" to 3" and :fin
height from 3/8" to 11/2". Design temperatures and
pressures vary per customer needs. Materials
are avai1able in most weldable alloys.
VERTICAL TANK HEATERS
Brown Fintube tank heaters feature off-the-floor design which
sirnpli:fies tank maintenance and cleaning during product changeover.
The tank f100r is free of piping and easily accessible.
The verti<;:a1design produces strong therma1 currents and efficient
heating in tanks of every description. Its header design insures uniform
steam distribution and reduced irnpingement-erosion problems.
Portable Steam
Immersion Heaters
Easily handled, these heaters are designed to
heat the contents of tank cars and tank trucks.
The reduction of viscosity irnproves f10wand
great1y speeds up emptying of the tanks.
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The number, size and placement 01vertical tank
heaters varies considerably with tank volume and
product. Manijolds can be arranged inside or outside
the tank in individual or collective co.njigurations.
A WIDE SELECTION
Brown Fintuhe tank heaters are of the interna1 type that typica11yuse steam or hot oil
as the heating medium. They are available in a wide variety of styles which singly 01-in
multiples suit most applications. Either solid or perforated longitudina1 fintubes al-e
used as dictated by the application. Various meta1s (C.S., S.S., Nickel, etc.) are available.
When standard materials, styles/sizes don't meet your requirements, we'll customize
a design or size just for your conditions.
TYPICAL LOADING/UNLOADING
APPLICATIONS
Brown Fintube
HORIZONTAL TANK HEATERS
Serpentine Heaters
HL Heaters
The serpentine heater utilizes hot oil or other suitable
heat transfer fluid as the heating mediurn. The series
flow con:figuration increases the velocity of
the liquid to effect higher heat transfer
rates and provide a cleaner
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operation with no
plugging.
Standing only 10" high, these heaters are ideal for
working day tanks or floating roof tanks. Where
low liquid levels may be encountered, their
perforated longitudinal fintubes increase
mixing action, maintain high
heat transfer rates, and
prevent product
stratification.
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Bayonet Heaters
The bayonet tank heater is provided with
a mounting flange which is bolted to
the side of the tank for ease of
insertion and removal. Heating
medium connections
are external to
the tank.
Perforated Fintubes
Custom Tank Heaters
Brown Fintube can custom design and manufacture
tank heaters for special applications, specific operating
requirements, or unusual vessel or tank con:figurations.
ASME Section vm, Division 1 code stamp heaters are
available when required.
All horizontal tank heaters are designed with
perforated fintubes. The perforations
permit better heat distribution. •
Heated product rises through
the perforations from the
lower side of the
heater so that
maximurn product
agitation and heat
transfer are achieved.
TYPICAL IN-PLANT APPLICATIONS
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