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Power Station Recuperative Air Preheater APH Heat Preservation ASME Standard

Zhangjiagang HuaDong Boiler Co., Ltd.
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Zhangjiagang HuaDong Boiler Co., Ltd.
Province/State: Jiangsu
Country/Region: China
Tel: 86-512-58666196
Contact Person:
Miss Sandy Chen

Power Station Recuperative Air Preheater APH Heat Preservation ASME Standard

Brand Name : HD BOILER
Model Number : APH
Certification : ISO9001,ASME,Grade A,SGS,EN
Place of Origin : China
MOQ : 1 Set/Sets 10tons
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500 Tons per Month
Delivery Time : 30 Days
Packaging Details : Iron Frame Package
Type : Pressure Parts
Pressure : Low / High Pressure
Range of Applications : Industrial / Power Station
Specification : Customized
Manufacturing Level : A
Surface Treatment : Painted
Style : Horizontal and Vertical
HS Code : 3215960855
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Environmental energy efficient Regenerative Air Preheater (APH) heat preservation With ASME Standard


After flue gases leave economiser,some further heat can be extracted from them and used to heat incoming heat.Cooling of flue gases by 20 degree centigrade increases the plant efficiency by 1%.

The purpose of the air preheater is to recover the heat from the flue gas(exhaust gases) from the boiler to improve boiler efficiency. Incidentally the gases are sent to the chimney or stack at lowered temperature so that the design of the ducting and the stack becomes simplified. Also it controls the temperature of gases coming out of the stack.


LayoutHorizontal layoutVertical Lout
Tube arrangement

Staggered arrangement

In-line arrangement

Staggered arrangement

In-line arrangement

Sealing of pipe and platePacking heat-resistan material / weldingWelding

High efficiency and energy saving boiler part air preheater is a general term used to describe any device designed to heat air before another process (for example, combustion in a boiler) with the primary objective of increasing the thermal efficiency of the process. They may be used alone or to replace a recuperative heat system or to replace a steam coil.


1. High corrossion resistance proerty;
2. Small covering area;
3. Pipe and tube plate in every link between separated, the heated bilges cold heat distortion is not bound to avoid stress destruction;
4. Single pipe, tube single or parts of equipment failure does not affect the heat normal operation


1. As the flue gas across tube, the flue gas side of the heat capacity of exile to strengthen, under the same heat transfer coefficient, wall temperature vertical preheater than ordinary steel increased 10-30 Degree Celsius, the overall heat transfer coefficient of about 20.3-24.2W;
2. Two horizontal sealing tube box, the sealed tube box structure welded high strength, pipe damaged or the overall change can only block, and heat-packing seal, can only replace the damaged pipe tube, easy maintenance.
3. The tube air preheater is mainly used for boiler preheater, the low temperature.

Quality control

Penetrant test


Company Introduction

Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.

1. Fabrication area of 200,000 square meters

2. 150 Engineers

3. 600 Coded welders

4. 60 Licensed Inspectors(NDT Level-III instructors)

5. Class-A Licenses for Design and Manufacture Boiler

6. ISO 9001:2008 Quality System

7. ASME Certificate of Power Boilers

8. ASME 'S','U' and NB stamp authorization

Contact Information

Contact Person: Mr. Edwin zhao

Business Phone: +86-17715177007
WHATSAPP: +86-17715177007
Skype: Edwin HD Boiler

Product Tags:

air preheater for boiler


air preheater in thermal power plant

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