Oil-fired stoves are suspension-burning stoves that use heavy oil as fuel. It is generally composed of an oil burner, a noise port and a furnace cavity. The main components of an oil burner are the fuel nozzles and the register. The combustion process of oil is actually first atomized into small oil droplets, sprayed into the furnace cavity, and the oil droplets are heated and evaporated and diffused and burned. Vacuum heat treatment of high speed steelThe intensified combustion process is achieved by intensifying the atomization, evaporation and mixing of oil and gas with air. Oil-fired furnaces produce very little soot, but heavy hydrocarbons or carbon are solids that are difficult to burn and often leave the furnace cavity unfinished, forming thick black smoke. Low pressure vacuum carburizing process of Cr17Ni2 stainless steelThe combustion temperature of oil is generally 1300-1500 ℃, and the amount of nitrogen oxides generated is much higher than that of coal-fired furnaces. Most of the sulfur in crude oil is concentrated in heavy oil, and oil-fired furnaces that use heavy oil as fuel should also pay attention to the prevention and control of SO2 pollution.The importance of brazing holding time