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ISO Certification Horizontal and Vertical Boiler Air Preheater For Heat Exchange , Air Preheater In Thermal Power Plant
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Brand Name:HD BOILER
Model Number:APH
Certification:ISO9001,ASME,Grade A,SGS,EN
Price:Negotiable
Payment Terms:L/C, T/T, Western Union, MoneyGram
Supply Ability:500 Tons per Month
Delivery Time:30 Days
Company Data
Verified Supplier
Contact Person
Sandy Chen
Business Type:
Manufacturer Trading Company
Officials:
Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
ISO Certification Boiler Tubular Air Preheater For Heat Exchange
Product introduction
Air preheater, or boiler preheater, is an important boiler part. It
can be divided into two kinds, Tubular type air preheater and
Vertical type air preheater.
Air preheater pipe type, mainly using industrial furnaces or smoke
waste heat boiler combustion air preheating furnace enter, such not
only improves the thermal efficiency of the stove and reduce the
environment pollution.
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.
1. A device,which increases the tempurature of air before it supply to the furnance using heat from flue gases passing through chimney.
2. The heat carried with the flue gases coming out of economiser is further utilised for preheating the air before supplying to the combustion chamber.
3. An increase of 20 degree centigrade in the air temp.increases the boiler efficiency by1%.
4. It is a necessary equipment to supply hot air for drying the coal in pulverised fuel systems to facilitate grinding and satisfactory combustion of fuel in the furnace.
Fuctions
1. Improve and strengthen combustion
The air after the waste heat enters the furnace, accelerates the fuel drying, ignition and combustion process, ensures the stable combustion in the boiler, and improves the combustion efficiency.2. Strengthen heat transfer
As the combustion in the furnace has been improved and strengthened, and the temperature of hot air entering the furnace has been increased, the average temperature level in the furnace has also been increased, so as to strengthen the radiation heat transfer in the furnace.
3. Reduce the loss in the furnace, reduce the smoke discharge temperature, and improve the boiler's thermal efficiency
Because the combustion in the furnace is stable and the radiation heat exchange is strengthened, the chemical incomplete combustion loss can be reduced. On the other hand, the air preheater makes use of the waste heat of flue gas to further reduce the loss of smoke exhaust, so as to improve the boiler's thermal efficiency. According to experience, when the air preheater in rise by 1.5 ℃, exhaust temperature can reduce 1 ℃. After installation of air preheater in boiler flue, if we can put the air heat 150-160 ℃, can reduce exhaust temperature 110-120 ℃, the boiler thermal efficiency can be increased by 7% - 7.5%. You can save 11 to 12 percent on fuel.
4, hot air can be used as fuel desiccant
For laminar combustion furnace, hot air can be used as fuel with high moisture and ash content. For power plant boiler, hot air is an important desiccant and coal powder conveying medium in the fat and powder system.
Benefits
1. Improved combustion rate and then increases steam generations rate of boiler.
2. Due to higher temperature of air, furnance temperature increases, so low grade coal can be burnt efficiently.
3. Air heated by heat of exhaust gases.It reduces fuel consumptions.Therfore thermal efficiency of boiler increased.
4. Saving in fuel consumption and Increased steam generation capacity.
Adavantages
1. Preheated air increases combustion rate and then increases steam generations of boiler.
2. Due to higher temp. of air,furnace temp.increases,so low grade coal can be burnt efficiently.
3. Air heated by heat of exhaust gases.It reduces fuel consumptions.Therefore thermal efficiency of boiler increased.
Working process
1. Hot flue gases enters into tubes from the top of the shell and leaves from to the chinmney.
2. The inlet air at R.Tem. is admitted into the shell with the help of the fan.
3. The air passes upward around the tubes in the opposite direction to the flow of the hot gases.
4. Baffeles increases the total path length of air thus increase heat transfer.
Specification
| Material | Carbon steel or equivalent |
| Structure | vertical |
| Tubes | enameled seam or seamless tubes |
| Tube OD | Customized |
| Enamel thickness | 0.34+/-0.06mm |
| Size | Customzied design |
| Brand | ORL |
| Remarks | Customized order is also accepted. |
| Manufacturing process | Material→Ingot → Hot/Cold-Rolling→ Heat treatment(Normalizing+ tempering) → Inspection→Cutting→Pipe piercing→welding→Sealing test→Painting→Packaging |
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.
Company Profile
Zhangjiagang HuaDong Boiler Co., Ltd.
Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. Hua Dong holds the manufacturing licenses for Grade A boilers and Grade A1&A2 pressure vessels issued by Chinese General Administration of Quality Supervision, Inspection and Quarantine; also it holds the "S" and "U" "NB" stamps issued by American Society of Mechanical Engineers; meanwhile, this Company has passed the certification of ISO9001, SO3834, EN12952 Quality Management System.
"Hua Dong" boilers include Utility Boiler, HRSG Boiler, coal-fired , oil(gas) -fired, coal-water-slurry-fired and garbage-fired steam/hot water boilers, organic heat carrier boilers, etc., and Boiler spare parts (Economizer, Finned tube, Header, Steam drum, Superheater, Water wall panel, Air preheater, Cyclone separator, etc., which are widely used in power generation, heat supply, chemical engineering, textile, food, paper, road building, plastic, rubber and wood working industries. "HD" boilers are honored as "Famous Production in Jiangsu Province", " Jiangsu High-Tech Product" and "Jiangsu Energy-Saving Product". "HD" brand is a "Famous Brand in Jiangsu Province". We are a qualified supplier for the top three boiler manufacturers in China(Harbin Boiler Co., Ltd., Dong Fang Boiler Group Co., Ltd., Shanghai Boiler Works Ltd.,). So far, Hua Dong Boilers have served 10000 customers, which sell well all over China and are exported to USA, Australia, Russia, Kazakhstan, India, Indonesia, South Africa, Brazil, and Southeast Asia.
We strive to manufacture "Safe, Efficient, Energy-Saving and Environment-Friendly" boilers, provide new-type products in excellent quality, serve users sincerely to their satisfaction, and be a top supplier of boilers in China.
Declaration
Zhangjiagang Hua Dong Boiler Co.,Ltd has no subsidiaries.
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Company Business
Our products have been wildly used in power plants and large international companies overseas.
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