Analysis and countermeasure on low-temperature corrosion of gas-fired heating furnace;

Described are the low-temperature corrosion problems quite prevalent in the flue-gas desulfurization system of a coal-fired power plant.

Through the probe into low-temperature corrosion and dust deposit on the heating surfact of a boilor and implementation of preventive measures,potential block up of the air preheater caused by low-temperature chemical corrosion and being stuck with dust because of low temperature was eliminated,thus ensuring the boiler s safe and smooth running.

The destruction of protective layer of ferrous sulfide on device surface by the occurrence of chlorine hydride was the main reason of low temperature corrosion in crude oil unit.

Through analyzing the mechanism of low temperature corrosion of home-made heat medium heater and its harm to the in-line oil pipeline, it is pointed out that the temperature of heater tube is important factor to form acid dew point corrosion,which constrains seriously the gas discharge temperature in a low temperature way.

This paper emphatically describes how to lift its fume exhaust temperature under low load running of a boiler so as to reduce low temperature corrosion.

Comments on the Horizontal Tubular Air Preheater for Recovery of the Heat of Flue Gas and Reducing Corrosion at Low Temperature Zone;

By analysing the reasons for the corrosion at low temperature of air heater in boiler,this article puts forward a technical remaking plan.