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Gas Cooler Alloy Steel Header Export Located Before ESP Electrostatic Precipitators Or FGD Flue Gas Desulfurization

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

Gas Cooler Alloy Steel Header Export Located Before ESP Electrostatic Precipitators Or FGD Flue Gas Desulfurization

Brand Name : HD BOILER
Model Number : Furnace wall
Certification : ISO9001 , SGS , TUV , ASME , EN
Place of Origin : Zhangjiagang,China
MOQ : 1 Set
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500 Tons / Month
Delivery Time : 50 Days
Packaging Details : Iron Frame Package
Material : Carbon steel / Stainless steel
Structure : Fire / Water Tube
Surface Treatment : Painted
Range of Applications : Industrial / Power Station
Specification : Customized
Port : Shanghai
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Waste heat recovery into energy module system decrease pollution emission

Product Description

1Working 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.
2These 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.


1Before designing this kind of equipment, it is necessary to know the nature of the gases to be cooled and their dust content.
2The purpose of all that is to design an equipment free of important fouling which would force to make cleaning works more frequently than wanted.
3We 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.


To sum up, the following items have to be taken into account when designing a flue-gases cooler:

1Kind of fluid.
2Dust content.
3Maintenance and cleaning works.
4Connection of the equipment with the rest of the plant.
5Depending on the above mentioned factors, different technical solutions may be applied which will go through the adoption of an arrangement:
7Modular (with only one or many fans).
One or more steps.


1Flue gas condensation may cause the heat recovered to exceed the Lower Heating Value of the input fuel, and thus an efficiency greater than 100%.
2Since historically most combustion processes have not condensed the fuel, usual efficiency calculations assume the combustion products are not condensed.
3This assumption is implicit when basing calculations on the Lower Heating Value.
4A more rigorous approach would be to base efficiency calculations on the Higher Heating Value, which typically results in efficiencies less than 100%.
5Should 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.

Whole set product picture

Product Tags:

flue gas heat recovery


flue gas heat exchanger

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Gas Cooler Alloy Steel Header Export Located Before ESP Electrostatic Precipitators Or FGD Flue Gas Desulfurization Images

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