Thermal

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What is aSteam Generator ?

• A steam generator is a boiler that is able to
  produce steam quickly.

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The reasons to use aVapor Steam Generator.

• Fast Start-up
• Compact size and low weight
• Full Modulation
• High Pressure
• Safe Operation

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Fast Start-up
Full output in five minutes or less.
Vapor Power ( 5 minutes )
Firetubes ( 30 minutes to 2 hours )
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High Pressure

• Steam pressure up to 3100 psig

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Compact Size andLow Weight

• Small footprint allows installation in tight
  boiler rooms (approx. 50 to 60 smaller)
• Quick and inexpensive installation
• Easy entrance through small doorways
• (complete or in sections)

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Full Modulation

• High burner and output turndown (8 to 1)
• Quick response to changing loads
• High efficiency maintained over complete firing
  range
• Firing rate is controlled by steam pressure or
  fluid temperature

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Safe Operation
The small water content of a Vapor Steam
Generator makes them very safe regardless of the
operating pressure.
Firetube Boilers contain between 40 to 50 times
more water than a Vapor Steam Generator.
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Ohio Revised Code Section 4739.04
No person shall operate a stationary steam boiler
of more than 30 horsepower without obtaining a
license. A horsepower means 12 square feet of
boiler heating surface...
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Using Coil-Type Steam Generators in Conjunction
with Natural Circulation Boilers.
Natural Circulation firetube and watertube
boilers have long dominated the high pressure
steam heating market. So, when would you need a
coil-type steam generator in the same plant?
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Retrofit Applications

• Where additional steam is needed and floor space,
  head space, or physical access is limited. Not
  only does the steam generator have a 40-60
  smaller footprint, it can be disassembled and
  re-assembled on site without any field welding.

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Summer Loads

• Where there are significant cyclical or seasonal
  load fluctuations, such as facilities that
  experience drastically reduced steam loads during
  the summer, the steam generator can carry the
  reduced load. This allows the natural
  circulation boilers to be removed from service
  during these periods, saving fuel and maintenance
  costs.

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Short Duration Load Swings

• Operations that use a portion of the steam for
  domestic hot water and has peak periods of use,
  the natural circulation boilers can be base
  loaded for normal operation and the swings
  absorbed by the steam generator. Because the
  steam generator can be left cold until needed,
  fuel savings alone can often justify the cost.

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Critical Standby Demands

• Hospitals and health care facilities depend on
  their boiler room for critical function and they
  must have standby or backup steam capability.
  Often, there is no room left in the existing
  boiler room for another conventional boiler and
  new construction costs can be prohibitive. A
  compact steam generator located in the boiler
  room or even the engine generator shed may be the
  solution.

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Sample Applications/Industries

• Corrugation
• Hospitals
• Petro-Chemical
• Valve Testing
• Marine
• Barge Heating
• Steel Pickling
• Process Steam
• Rubber Curing
• Petroleum

• Food Processing
• Resin Production
• Cable Production
• Glass Production
• Chemical Production
• Textile Production
• Laundry Services
• Plastic Production
• Carpet Manufacturing
• Defense

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There are two types of Vapor steam generators.

• Modulatic (once-through type)
• Circulatic (recirculating type)

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ModulaticSteam Generator
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The ModulaticSteam Generator

• 18 BHP to 300 BHP
• up to 3100 psig
• up to 10,350 lbs/hr

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The ModulaticSteam Generator

• A once through, forced circulation, watertube
  boiler in which water under pressure circulates
  at high velocity through a series of coils while
  forced draft combustion gases travel across the
  coils. The hot gases envelop the entire tube
  surface to achieve very high heat transfer rates.
  

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Cut away of the Modulatic
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The flow diagram of the Modulatic
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How the Modulatic works

• The Modulatic is a once through watertube boiler
  with a positive displacement pump to provide a
  constant flow of feedwater.
• The water by-pass regulator continuously
  regulates the amount of feedwater that is sent to
  the coils in response to changes in steam
  pressure. By-passed water is returned to the
  feedwater tank.
• The servo control changes the amount of fuel and
  combustion air in direct proportion to the flow
  of water being sent to the coils.
• Ninety percent of the water is converted into
  steam in the coils.
• Dry steam is then produced in the steam
  separator. The water remaining is removed by a
  steam trap.

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CirculaticSteam Generator
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The CirculaticSteam Generator

• 75 BHP to 600 BHP
• up to 530 psig
• up to 20,700 lbs/hr

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The CirculaticSteam Generator

• A recirculating, forced circulation, watertube
  boiler in which water under pressure circulates
  at high velocity through a set of nested parallel
  connected coils, while forced draft combustion
  gases travel across the coils. The hot gases
  envelop the entire tube surface to achieve very
  high heat transfer rates.

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Cut away of the Circulatic
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The flow diagram of the Circulatic
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How the Circulatic works

• The Circulatic is a forced recirculation
  watertube boiler that uses a drum as a steam
  separator and a reservoir of water to supply the
  coils.
• A recirculating pump draws the water from the
  drum and forces it through a set of parallel
  connected coils at the rate of 3 to 4 times the
  maximum steaming rate.
• The water is then pushed through a steam lance
  and a series of baffles in the drum where some of
  the water is flashed into steam and separated.
  The dry steam is released and the water is
  recirculated through the coils.
• The fuel and combustion air is controlled by a
  modulating motor that responds to steam pressure.
• The feedwater is controlled by a water level
  control system and modulating feedwater valve.

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HI-R-TempHot Oil Heater
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The HI-R-TempHot Oil Heater

• 400,000 to 20,000,000 Btu/hr
• Fluid temperatures up to 750º F

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The cut away of theHI-R-Temp
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How the HI-R-Temp works

• The HI-R-Temp is a forced circulation coiltube
  type liquid phase heater in which fluid
  circulates through a set of coils.
• The pump is sized to optimize motor horsepower
  and maintain the fluids properties.
• Combustion fuel and air are controlled by a PLC
  or other device in response to fluid outlet
  temperature. This assures the output temperature
  of the heater is held steady.
• The small volume and high fluid velocity allow
  the HI-R-Temp to respond quickly to changing
  system output requirements.

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Advantages of Hot Oil

• Closed loop system
• Single-phase process
• No water treatment system
• No steam traps
• High temperatures at low pressures

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Vapor Hot Oil Heaters

• We serve
• Industrial Markets
• Marine Barge Industry
• Petroleum Industry
• Chemical Industry
• Others

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Codes and Standards

• ASME S, U and H Stamp
• Hartford Steam Boiler
• Industrial Risk Insurers (IRI)
• Factory Mutual (FM)
• US Coast Guard
• American Bureau Shipping (ABS)
• Canadian Gas Association (CGA)
• Lloyds Registry

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Low NOx

• Variety of Technologies
• New and Existing Vapor Units
• Tailored to Specific Emission Requirements

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Fuels

• Natural Gas
• Light and Heavy Fuel Oils
• Propane
• Others...

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Sample Customers

• Proctor Gamble
• PPG Industries
• Stockhausen
• Milliken
• British Petroleum
• JM Smuckers Co.
• Westinghouse
• Borden
• Florida Power Light
• Amoco

• National Board
• Univ. of Michigan
• Crosby Valve
• FMC
• Childrens Hospital
• Georgia Pacific
• PCA
• Quaker Oats
• Huntsman Chemical
• Nelson Steel