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High Corrosion Fuel Gas Boiler Fin Tube Economizer For Heat Reovery Systems

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

High Corrosion Fuel Gas Boiler Fin Tube Economizer For Heat Reovery Systems

Brand Name : HD BOILER
Model Number : Furnace wall
Certification : ISO9001 , SGS , TUV , ASME , EN
MOQ : 1 Set
Price : Negotiable
Payment Terms : Western Union, L/C, T/T
Supply Ability : 500Sets / Month
Delivery Time : 50 Days
Packaging Details : Iron Frame Package
Function : Steam Boiler
Structure : Tube Heat Exchanger
Fin material : Stainless steel,aluminum
Connector : Flange or thread or others
Usage : Power Plant/CFB Boiler
Port : Shanghai
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High Corrosion Fuel Gas Boiler Fin tube economizer for heat reovery system

Product Description

Working principle of a flue-gases cooler is the same as in the above-described equipment, but the aim in this case is to cool a primary fluid, not to get a thermal profit by heating a secondary fluid.

These equipment are usually installed as the previous step to a flue-gases cleaning, to avoid the gases from reaching the cleaning systems at too high temperatures. This means an alternative to the dilution with air, which would imply an over-sizing of the mentioned systems


Before designing this kind of equipment, it is necessary to know the nature of the gases to be cooled and their dust content. The purpose of all that is to design an equipment free of important fouling which would force to make cleaning works more frequently than wanted.

We must have in mind as well the availability to detach the dust from the gaseous stream containing it in all those areas where there is a bend or some enlarging in the pass section, which forces to include in the design some systems for dust collection and removal, to allow the correct heat exchange.


Flue gas condensation may cause the heat recovered to exceed the Lower Heating Value of the input fuel, and thus an efficiency greater than 100%. Since historically most combustion processes have not condensed the fuel, usual efficiency calculations assume the combustion products are not condensed. This assumption is implicit when basing calculations on the Lower Heating Value. A more rigorous approach would be to base efficiency calculations on the Higher Heating Value, which typically results in efficiencies less than 100%.[citation needed]

Should the flue gases be cooled below 25 °C (77 °F), even efficiencies based on the Higher Heating Value may exceed 100%, since typical heating value definitions assume that all heat is released when combustion products are cooled to somewhere between 15.56 °C (60.01 °F) and 25 °C (77 °F).

Design principle

When the designer's choice is the multi-cyclone collector,or the electrostatic precipitator,or a different type constructed of metals or ther low temperature materials,it becomes necessary to add a gas-cooling device.This is done to assure that he entering flue gases are with in the temperature range of 600 to 700F,with no possibility of even flashes of higher temperatures.

The exit temperature depends upon the materials used downstream from the cooling chamber.Since , however , experience and economical evaluations justifying the use of the high temperature alloys are not generally available this paper is based upon the exit temperatures stated above.

The two agents commonly used as cooling materials are air and water.Both have advantages and disadvantages.Generally,a combination of the two is found most acceptable.However,they must first be considered separately,so that the characteristics of each may be properly evaluated.

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Company Information

HD Boiler offers a best in class facility,including:

  • Fabrication area of 200,000 square meters
  • 150 Engineers
  • 600 Coded welders
  • 60 Licensed Inspectors (including NDT level-lll instructors)
  • Grade-ALicenses for Design and Manufacture boiler (issued by the State Administration of Quality Supervision and Inspection)
  • ISO 90001:2008 Quality System
  • ASME Certificate of Utility Boiler
  • ASMES’ , ‘U’ and NB stamp authorization

Product Tags:

flue gas heat recovery


waste heat recovery

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