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[China]
Trade Verify
Address: Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
Contact name:Sandy Chen
Zhangjiagang HuaDong Boiler Co., Ltd. |
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Verified Suppliers
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Industrial Coal Fired Boiler Stack Economizer / Waste Heat Boiler Exchanger
Product Description
Boilers operate by heating water to make steam, and using that steam for heating, processing or power generation. For the most part, a boiler is fairly efficient, but there is some heat loss when the flu gasses resulting from combustion are vented. The spent gases after combustion are quite hot, often very hot, and when they are simply vented out the exhaust stack, this represents lost heat for the boiler system.
Energy saving
The amount of savings depends on several items
• The existing stack temperature (how much heat can be
extracted).
• The cost of your boiler fuel.
• The hours of operation of your boiler (more hours = more
savings).
• Average boiler firing rate.
• Economizer entering water temperature and flow rate.
Operation
Economizers must be sized for the volume of flue gas, its temperature, the maximum pressure drop allowed through the stack, what kind of fuel is used in the boiler, and how much energy needs to be recovered. Economizers designed for natural gas only, would likely plug-up if installed on a coal boiler and would face increased risk of corrosion if installed on an oil-fired boiler. Some units are designed to keep the flue gases above condensation temperature, and others are made of materials that resist the corrosive effect of condensed flue gases.
Specification
| Reduces Fuel Use and Cost | • Recovers heat from flue gases that would otherwise be wasted . • Heat is used to raise boiler feedwater temperature prior to entering the boiler. |
| Emissions | • Reduced fuel-firing rates for any given steam output means reduced NOx emissions . |
| ASME Construction | • Ensures high quality design and manufacturing standards . • Provides safety and reliability . |
| High Efficiency Heat Exchanger | • Provides uniform fin-to-tube contact for maximum heat transfer . • Fin tubing offers up to 12 times the heat exchange surface of bare tubing of the same diameter. |
| Self-Draining Design | • Suitable for outdoor installation. |
| Low Pressure Drop | • Provides low gas side pressure drops. • Permits use of smaller forced draft fans. • Permits use of existing fans in almost all installations. |
Certificate
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 400,000 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
