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CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
Specifications
Brand Name :
HD Boiler
Model Number :
HDBBAP0118
Certification :
ASME, SGS, ISO9001, TUV, GRADE A, EN
Place of Origin :
China
MOQ :
10 Set
Price :
USD50,000 to USD100,000 per set
Payment Terms :
L/C at sight, T/T
Supply Ability :
500 tons per month
Delivery Time :
Within 80 days after getting the down payment or L/C
Packaging Details :
Sea worthy Packing for Export with iron frame
Type :
boiler air preheater, Heating Elements, Boiler Tube
Application :
Power Station Maintenance
Material :
Stainless Steel, enameled tubes, Carbon Steel
Advantage :
Good sealing, high heat transfer efficiency
Usage :
Power Station and industry
Port :
Shanghai；Zhang jiagang
Description

General Introduction: Air Preheater

The air preheater is a type of heat exchanger that uses the heat of flue gas at the tail of a boiler to heat the air needed for combustion. The air preheater can absorb the exhaust gas waste heat and improve the efficiency of the boiler. After installing economizers, although the exhaust gas temperature can be reduced a lot, the feed water temperature of the power station boiler is mostly higher than 200°C. Therefore, the exhaust gas temperature cannot be lowered, and the exhaust gas temperature can be reduced by absorbing heat through the cold medium after installing a set of air preheaters.

CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance

Working Principle

Taking the rotary air preheater as an example to illustrate the principle of air preheater, it will rotate slowly during operation, the flue gas will enter the flue gas side of the air preheater and then be discharged, and the heat carried in the flue gas will be absorbed by the heat sink in the air preheater, and then the air preheater rotates slowly, the heat sink moves to the air side, and then the heat is transferred to the air before entering the boiler.

The application of air preheater in boiler is mostly three-compartment type, with fire alarm system, gap adjustment system and frequency conversion control system. Air preheaters are easy to use, simple to operate, safe to operate, and can improve the heat exchange performance of the boiler system, so it is very commonly used in flue gas boiler systems.

Details

The main heat transfer component of tubular air preheater is thin-walled steel tube. The tubular air preheaters are mostly cubic. The steel tubes are arranged vertically and staggered with each other. Both ends are welded on the upper and lower tube sheets.The tubular air preheater is equipped with an intermediate tube sheet in the tube box. The flue gas passes through the preheater up and down the pipe, while the air passes through the preheater horizontally to complete heat transfer.

Tubular air preheater is widely used in power station boilers and industrial boilers because of its advantages of good sealing, high heat transfer efficiency, easy manufacturing and processing. The shortcomings of tubular air preheater are large volume, easy ash plugging of steel tube content, difficult cleaning and easy wear and tear at flue gas inlet.

CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance

Functions

1. Improve and enhance combusion
The air through the air preheater enters the boiler inside, and speed up the fuel processes of drying, ignition and combusion, and makes sure the stable combusion inside the bouler, and improve the combusion effieciency.
2.Enforce heat tranfer
Due to the improvement and enforcement of combusion in the boiler, as well as the increase of hot wind temperature when entering the boiler, the average temperature inside is increased, too. This can enforce the radiation heat transferrring in the boiler.
3.Reduce the boiler loss, decrease the exhaust gas temperature and improve the thermal efficiency of the boiler.
Because the combusion inside is stable, and the radiation heat transferring is enhanced, it can reduce the loss caused by chemical incomplete combusion. On the other hand, the air preheater take the advantage of gas flue heat to further reduce the exhaust loss, which thus improves the thermal efficiency. According to experience, when the air tempeature inside the air preheater is increased by 1.5 degrees, the temperature of gas flue can be decreased by 1 degree. If installed, the air preheater can preheat the air by 150-160 degrees, then can reduce the temperature of gas flue by 110-120 degrees, and increase the thermal efficiency by 7-7.5% as well as save fuel by 11-12%.
4.the heat air can be the fuel desiccant.
For layer-burning boilers, it is okay to use fuel whose miosture and ash content is high when preheated air is available. For power station boilers, hot air is an important desiccant for fat power system and medium to convey coal powder.

CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance



Parameter

Layout item Horizontal layout Vertical layout
Tube arrangement

staggered arrangement /
in-line arrangement

staggered arrangement /
in-line arrangement
Sealing of pipe and plate

Packing heat- resistant material/
welding

 welding
Anti-wearing

a,when gas scours external tube, welcoming smoke tubes have protective tile
b,when gas scours inside tube,wear casing pipes are installed in gas inlet.


Enamel air preheater products are classified as following by application

1.Enamel heat exchanger designed for denitration renovation projects
2.Enamel heat exchanger for circulating fluidized bed boiler and pulverized coal boilers Heat
exchanger parts for garbage incinerators and biomass boilers
3.Heat exchanger parts for grate furnaces, like chain grate furnaces4.Heat exchanger parts for gas-fueled boilers, such as kerosene boilers, coke ovens, etc.

CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance

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Product Detail
Brand Name :
HD Boiler
Model Number :
HDBBAP0118
Certification :
ASME, SGS, ISO9001, TUV, GRADE A, EN
Place of Origin :
China
MOQ :
10 Set
Price :
USD50,000 to USD100,000 per set
Contact Supplier
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CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance
CS / SS / AS Material Boiler Air Preheater For Improved Boiler Performance

Zhangjiagang HuaDong Boiler Co., Ltd.

Verified Supplier
9 Years
jiangsu
Since 1985
Business Type :
Manufacturer, Trading Company
Main Products :
Superheater Coil, Boiler Membrane Wall, Boiler Economizer
Total Annual :
100,000,000-120,000,000
Employee Number :
1000~1100
Certification Level :
Verified Supplier
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