Zhangjiagang Dehai Boiler Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 800 Tons / Month |
| Delivery Time | 45 Days |
| Packaging Details | Seaworthy packing |
| Application | Power station CFB boiler |
| Product Name | Air preheater boiler |
| Type | BOILER AIR PREHEATER |
| Color | Customer's Requirement |
| Warranty | 12month |
| Certificate | ISO9001 , SGS , ABS , ASME |
| Brand Name | Dehai Boiler |
| Model Number | Fin tube |
| Certification | ISO9001 , SGS , ABS , ASME |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 800 Tons / Month |
| Delivery Time | 45 Days | Packaging Details | Seaworthy packing |
| Application | Power station CFB boiler | Product Name | Air preheater boiler |
| Type | BOILER AIR PREHEATER | Color | Customer's Requirement |
| Warranty | 12month | Certificate | ISO9001 , SGS , ABS , ASME |
| Brand Name | Dehai Boiler | Model Number | Fin tube |
| Certification | ISO9001 , SGS , ABS , ASME | Place of Origin | China |
| High Light | air to air heat exchanger ，gas air heater | ||
Power station CFB boiler auxiliary accessory boiler air preheater Factory supplier Spare parts
Boiler auxiliary air preheater Introduction
1. Heating combustion air can raise boiler efficiency about 1% for every 40F in temperature increase. The most common way to preheat the air is with a heat exchanger on the flue exhaust. The heat exchanger can be either air-to-air or air-to-liquid-to-air.
2. Combustion air pre-heater technology on large coal-fired boilers dates back to the early 1900’s, and is used on most all large boilers todays. With the increasing price of fuel and technology improvements, the size of a boiler that can be economically equipped with a pre-heater should become smaller. Although still a technology most applicable to large boilers, high energy prices will certainly motivate innovative new applications for economical combustion air pre-heaters on ever smaller boilers.
Air Preheater Pros
Air Preheater Cons
Working of Air Preheaters(APH)
1. Air Preheaters have a shell and tube type construction where exhaust heat from the flue gases is transferred to the air when they come in indirect contact with each other.
2. Air Preheaters consist of a shell where tubes are arranged in a square or triangular pitch and are welded to a tube plate. Depending upon the type of operation and ease of cleaning, flue gases & air can be allowed to travel either shell side or tube side interchangeably.
Tubular type Air Preheater
1. Tubular preheaters consist of straight tube bundles which pass through the outlet ducting of the boiler and open at each end outside of the ducting.
2. Inside the ducting, the hot furnace gases pass around the preheater tubes, transferring heat from the exhaust gas to the air inside the preheater.
3. Ambient air is forced by a fan through ducting at one end of the preheater tubes and at other end the heated air from inside of the tubes emerges into another set of ducting, which carries it to the boiler furnace for combustion.
Details
| 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 | |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1998
Total Annual:
30,000,000.00-50,000,000.00
Employee Number:
300~500
Ecer Certification：
Active Member
Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance. Dehai has ISO9001:2008 certificate is... Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance. Dehai has ISO9001:2008 certificate is...
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