各类烧嘴简介（Brief introduction of various burner）.doc

各类烧嘴简介（Brief introduction of various burner） All kinds of burner. External mixing type burner, domestic production and research and is the introduction of the two channel, three channel, four channel, five channel, six channel etc.. The channel number depends on the specific circumstances, the cooling method of external cooling (of a cooling jacket or coils) and internal cooling (a cooling water channel between the feed). Change of structure type and structure size will make the change of the atomization performance of burner. One Two channel burner Some of the gasification furnace of large ammonia plant introduced earlier this year used two channel burner in Texaco gasification technology as the main representative. The main features of the burner is simple in structure, atomization and can meet the requirements of the basic process. But from the running effect of domestic enterprises, this type of burner in the gasification furnace, and the effective gas content, and yield were lower than that of multi channel burner. (1) residual oil gasification burner Two channel burner with annular tube gap oil steam mixing material, oxygen tube center. Oil and steam in the first three in the mixed burner outside the pipe, three links at the mixed residue inlet velocity is about 15 m/s, the steam velocity is greater than 60 m/s, the residue in the throat atomization under high speed. Oil - steam mixture in the burner pipe ring gap flow rate was 75 m/s, the oxygen in the center tube flow rate is 132 ~ 137 m/s, in a steam nozzle and oil mixed phase circulation impact, the oil drop further atomization. The two is the velocity of ejection port formed at a black zone to protect. For example, the Ukrainian petrochemical fertilizer plant the first synthetic ammonia plant Texaco gasifier use the patent, the principle is the residual oil, steam and oxygen mixed in proper ratio, the incomplete combustion of gas generating process 4. Hyperbaric oxygen (25 C, 9.60 MPa) and preheated resid