High Quality Packaged Steam Boilers Steam Boilers Package for Sale
water pipes
Packaged Steam Boilers Advantage
- Compact design capable to fit tight engineering spaces.
- Utilizes forced or induced draft system to provide greater
efficiency and better air flow.
- Many tube passes which provide greater heat transfer.
- High thermal wear levels.
- Inexpensive maintenance.
- Ease of installation.
- Less costly than water tube boiler erected on site of same
capacity.
- Less man power is required.
Package Boilers Internal Structure
1. Package boilers are commonly called water or fire tube Boilers.
Water tube boilers use convection heating, which draws the heat
from the fire source, and passes against the generating tubes of
the boiler, causing water inside those tubes to boil off into
steam. The fire tube boiler arrangement utilizes conduction heating
which transfers heat from physical contact.
2. Fire tube boilers are not commonly used due to their method of
conduction heating because pipes in direct contact with fire and
cold water could damage the pipes. The package boiler is usually a
two or three-pass fire-tube boiler with an internal furnace tube.
This is similar to the much earlier Scotch boiler.
3. Generating tubes filled with water are in direct contact with
the heat source inside the boiler, causing damage to the pipes as
well as scaling. These boilers however are great with steam
production due to the large volume inside the boiler and the
surface area of the steam output. In order for these boilers to
operate properly, they require a long warm-up process, and are
prone to thermal shock of the boiler.
4. These boilers can be rated up to 500,000 lb/hr.The wall membrane
of the boiler are dual welded, (welded on either side of the wall
membrane) to provide extra reinforcement for high loads.
Package boiler brief introduction
1. A package boiler is a factory-made boiler. Package boilers are
available in a range of standard designs.
2. Package boilers are used for heating and act as a steam
generator for small power purposes such as self-powered industrial
plants.
3. They cannot be used for large-scale power plants such as
co-generation plants due to their size and lack of efficiency.
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