Professional Customized ASME Standard Boiler Air Preheater for Industry
What is Air Preheater?
Boiler air preheater is to improve performance of heating change for boilers, and reduce heat consumption. Air preheaters work to transfer the heat carried by exhaust gas from boiler tail flue to the air before entering the boiler through the cooling ribs, and heat the air to a certain temperature. |
Usually it is used for coal-fired boilers in power station. They can be divided into tube-box type and rotary air preheaters.Rotary type can be divided into wind hood rotary type and heating surface rotary type. Generally boilers in power staion apply heating surface rotary air preheaters. There are two warehouses, three warehouses and four warehouses types in boilers application. Four warehouses type are commonly used for CFB boilers. |
What are the functions of Air Preheater?
What is the working principle of Air Preheater?
In rotary air preheater, for example shows that the principle of air preheater, the work will slow rotation, will enter the air preheater smoke lientang then expelled, and carry the heat in flue gas will be absorbed by the cooling fin in air preheater, after the air preheater, slow rotation and fin movement to the air side, to transfer heat to the air before entering the boiler.
The application of air preheater in boiler is mostly three-compartment type with fire alarm system, clearance adjustment system and frequency conversion control system.
The air preheater is easy to use, easy to operate, safe to operate, and can improve the heat exchange performance of the boiler system, so it is widely used in the flue gas boiler system.
Some Parameters
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. |
About us
The products of our company have been widely used in major power plants of various provinces and cities in China, bringing stable and significant economic and social benefits to cooperated power plants. At the same time, we attach great importance to product development and strive to improve product quality. Through the cooperation with a number of domestic and foreign companies, we constantly explore the international market.
Some pictures