Zhangjiagang HuaDong Boiler Co., Ltd. |
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High Pressure Natural Circulation Steel Boiler Manifold Headers for Power Plant
Product Introduction
Functions
1. Improve and intensify combustion
The air after the heat exchanger enters the furnace, which
accelerates the drying, ignition and combustion process of the
fuel, ensures the stable combustion in the boiler and improves the
combustion efficiency.
2. Enhance Heat Transfer
Because the combustion in the furnace has been improved and
strengthened, and the temperature of hot air entering the furnace
has been increased, the average temperature level in the furnace
has also been raised, so the radiation heat transfer in the furnace
can be strengthened.
3. Reducing the loss in the furnace, lowering the exhaust gas
temperature and improving the thermal efficiency of the boiler.
Because of the stable combustion in the furnace and the enhanced
radiation heat exchange, the chemical incomplete combustion loss
can be reduced. On the other hand, the air preheater uses the waste
heat of flue gas to further reduce the loss of exhaust gas, thus
improving the thermal efficiency of the boiler. According to
experience, when the air in the preheater rises by 1.5 C, the
exhaust gas temperature can be reduced by 1 C. After installing the
air preheater in the boiler flue, if the air waste heat can be
150-160 C, the exhaust gas temperature can be reduced by 110-120 C,
and the thermal efficiency of the boiler can be increased by
7%-7.5%. Fuel can be saved by 11%-12%.
4. Hot air can be used as fuel desiccant.
Hot air is an important desiccant and pulverized coal conveying
medium for grease powder system in power plant boilers.
Features
Details
Parameters
Material | Carbon steel,Alloy steel,Stainless steel. |
Length | According to costumes requirements. |
Temperature Range | 300℃~1500℃ |
Diameter(OD) | 76mm~914mm |
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