Send Message
Home ProductsBoiler Air Preheater

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance

  • ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance
  • ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance
  • ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance
  • ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance
ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance
Product Details:
Place of Origin: China
Brand Name: HD Boiler
Certification: ASME, SGS, ISO9001, TUV, GRADE A, EN
Model Number: HDBBAP0118
Payment & Shipping Terms:
Minimum Order Quantity: 10 Set
Price: USD50,000 to USD100,000 per set
Packaging Details: Sea worthy Packing for Export with iron frame
Delivery Time: Within 80 days after getting the down payment or L/C
Payment Terms: L/C at sight, T/T
Supply Ability: 500 tons per month
Contact Now
Detailed Product Description
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
High Light:

ASME Boiler Air Preheater

,

High Safety Boiler Air Preheater

,

Power Station Maintenance Boiler Air Preheater

ASME Carbon Steel High Safety Level Boiler Air Preheater for Power Station Maintenance

 

 
General Introduction: Air Preheater
 

            Air preheater is a kind of preheating equipment that improves the heat exchange performance of steam boiler and reduces heat loss. The function of the air preheater is to conduct the heat carried in the flue gas discharged from the flue at the tail of the boiler into the air which have yet to enter the boiler through the sheet, and preheat the air to a certain temperature. The air preheater can use the heat energy carried by the flue gas at the boiler outlet to preheat the boiler combustion air or other drying purposes.

 

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance 0

 

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.

 

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance 1

 

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.
 
 

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance 2


 
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.

 

ASME Carbon Steel High Safety Level Boiler Air Preheater For Power Station Maintenance 3

Contact Details
Zhangjiagang HuaDong Boiler Co., Ltd.

Contact Person: Miss. Sandy Chen

Fax: 86- 512-58774453

Send your inquiry directly to us (0 / 3000)

Contact

Address: Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China

Factory Address:Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China