Characteristics of Fire-Tube and Water-Tube Boilers
Fire-tube Boiler [1]
|
Water-tube Boiler[2]
| |
Pressure
|
Limited to 20-30 bar (20 bar in the larger sizes).
|
Virtually unlimited
|
Unit output
|
Limited to about 20 MW.
|
Virtually unlimited.
|
Fuel acceptance
|
All commercial fuels.
|
Virtually unlimited due to the large furnace,
which can be designed for a particular fuel.
|
Cost
|
Low compared to water-tube.
|
High compared to fire-tube.
|
Erection
|
Packaged ready for work after connecting
to services at site.
|
Can be shop-assembled or site erected.
|
Efficiency
|
80 – 85 % (Gross calorific value) according to fuel.
Can be increased by adding economizer.
|
85 – 90 % (Gross calorific value) according
to fuel. Economizer or air preheater normally
included as standard. Both may be used together
to maximize efficiency.
|
Feed water purpose
|
For heating purposes.
|
For power plus heating purposes.
|
Firetube boiler VS Watertube Boiler: http://www.zghorizontalboiler.com/water-tube-boiler-vs-fire-tube-boiler.html
没有评论:
发表评论