In order to improve thermal efficiencyof heat conduction oil furnace, design to research found through years ofexperience in research and FG, usually between the following four methods in acertain methods or their combination method, which can achieve the purpose ofimproving the heat efficiency of the furnace.
1, increase the heat transfer area ofthe convection section. Increasing the heat transfer area can increase thethermal efficiency of the furnace. But in general radiation section heattransfer area due to the shape of the grate size or burner and a proper range,excessive radiation heat transfer area is not the best of segments. Therefore,it is usually used to increase the heat transfer area of the FGS, so as toachieve the purpose of improving the thermal efficiency of the furnace.
2, set air preheater. One of themeasures of thermal efficiency of WE high heat conductive oil furnace is themost effective use of air preheater for heat recovery. However, the biggestproblem of using air preheater is the low temperature corrosion of materialwhich is easy to occur when the sulfur content is used. In order to control thecorrosion in a certain degree, it should be based on the amount of sulfurcontent of the fuel, the low temperature zone of the FGF temperature set aminimum threshold. To this end, the temperature of the flue gas in the airpreheater outlet must have a control. In this way, the maximum thermalefficiency can be determined.
3, using the waste heat boiler for heatrecovery. The waste heat boiler using waste heat of flue gas discharged fromthe heat conducting oil furnace to heat water or steam. Set the waste heatboiler will not change the hot oil furnace fuel consumption, waste heat boiler（www.rguolu.com） to generate hot water or steam G can be for the production and heating, whichcan indirectly saving fuel. DGF waste heat boiler has the following effect: oneis due to water heat recovery, so to improve the thermal efficiency of thefurnace. The second is due to will a plurality of heat conduction oil furnaceflue gas centralized FGS for heat recovery. Therefore, it can reduceconstruction costs of heat recovery unit.
4, reduce excess air rate. In thedesign of heat-conducting oil furnace can reduce the thermal efficiency of thefurnace to improve the rate of excess air. In order to reduce the excess airratio, the air inlet baffle is usually arranged so as to adjust the combustionair. Hot oil furnace on oil or gas type, can use low excess air burner.