High Efficient High Pressure Boiler Air Preheater Heat Exchanger
Long Life Time
Product Information
Air pre-heater is a device used to improve the heat exchange
performance of the boiler and reduce energy consumption. It is used
by the flue gas in the boiler's tail flue to preheat the air before
entering the boiler to the heating surface with a certain
temperature through the internal heat sink.Air preheater is
generally divided into three types: plate type, rotary type and
tube type.Taking rotary type as an example, the working principle
of air preheater is introduced.A large amount of unburned
combustible materials will deposit on the heat transfer elements
and may cause the air preheater to catch fire.Also introduced in
detail the analysis and leakage air treatment.
Functions/Advantages
1. Improve and strengthen combustion
The air after the waste heat enters the furnace, accelerates the
fuel drying, ignition and combustion process, ensures the stable
combustion in the boiler, and improves the combustion efficiency.
2. Strengthen heat transfer
As 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 increased, so as to strengthen the radiation heat
transfer in the furnace.
3. Reduce the loss in the furnace, reduce the smoke discharge
temperature, and improve the boiler's thermal efficiency
Because the combustion in the furnace is stable and the radiation
heat exchange is strengthened, the chemical incomplete combustion
loss can be reduced.On the other hand, the air preheater makes use
of the waste heat of flue gas to further reduce the loss of smoke
exhaust, so as to improve the boiler's thermal efficiency.According
to experience, when the air preheater in rise by 1.5 ℃, exhaust
temperature can reduce 1 ℃. After installation of air preheater in
boiler flue, if we can put the air heat 150-160 ℃, can reduce
exhaust temperature 110-120 ℃, the boiler thermal efficiency can be
increased by 7% - 7.5%.You can save 11 to 12 percent on fuel.
4. hot air can be used as fuel desiccant
For laminar combustion furnace, hot air can be used as fuel with
high moisture and ash content. For power plant boiler, hot air is
an important desiccant and coal powder conveying medium in the fat
and powder system.
Parameter
| Name | Thermal efficiency improving coal fired industrial steam boiler
combustion APH air preheater |
| Material | Carbon steel or equivalent |
| Structure | vertical |
| Tubes | enameled seam or seamless tubes |
| Tube OD | as required |
| Enamel thickness | 0.34+/-0.06mm |
| Size | Customzied design
|
Company Profile
"Hua Dong" boilers include Utility Boiler, HRSG Boiler, coal-fired
, oil(gas) -fired, coal-water-slurry-fired and garbage-fired
steam/hot water boilers, organic heat carrier boilers, etc., and
Boiler spare parts (Economizer, Finned tube, Header, Steam drum,
Superheater, Water wall panel, Air preheater, Cyclone separator,
etc., which are widely used in power generation, heat supply,
chemical engineering, textile, food, paper, road building, plastic,
rubber and wood working industries. "HD" boilers are honored as
"Famous Production in Jiangsu Province", " Jiangsu High-Tech
Product" and "Jiangsu Energy-Saving Product". "HD" brand is a
"Famous Brand in Jiangsu Province". We are a qualified supplier for
the top three boiler manufacturers in China(Harbin Boiler Co.,
Ltd., Dong Fang Boiler Group Co., Ltd., Shanghai Boiler Works
Ltd.,). So far, Hua Dong Boilers have served 10000 customers, which
sell well all over China and are exported to USA, Australia,
Russia, Kazakhstan, India, Indonesia, South Africa, Brazil, and
Southeast Asia.
