Ultra-low nitrogen emission burner

Abstract

The invention relates to a burner with ultralow nitrogen emission. The burner with ultralow nitrogen emission comprises a fan and a connecting cylinder, wherein the fan comprises a spiral case and a motor arranged on the spiral case; an air inlet and an air outlet are formed in the spiral case; the end part of one end of the connecting cylinder is connected with the air outlet of the spiral case; the other end of the connecting cylinder is connected with a mixing cylinder through a flange; center lines of the connecting cylinder and the mixing cylinder are collinear; a gas pipe is arranged in the mixing cylinder; one end of the gas pipe stretches out to the outer side of the connecting cylinder; an ignition assembly is arranged on the gas pipe; an annular plate passing through a center line and provided with a circular ring-shaped cross section is fixedly connected onto the inner wall of one end, far away from the air outlet, of the connecting cylinder; one end, far away from the air outlet, of the annular plate stretches into the mixing cylinder; the outer wall fits to the inner wall of the mixing cylinder; a burning cylinder is horizontally arranged in the mixing cylinder; the outer wall of the burning cylinder fits to the inner wall of the mixing cylinder; and the end surface of one end, close to the connecting cylinder, of the burning cylinder is abutted against the end surface of the annular plate. The burner with ultralow nitrogen emission provided by the invention has an effect on preventing gas leakage on the connecting part of the connecting cylinder and the mixing cylinder.

Description

technical field [0001] The invention relates to the technical field of ultra-low nitrogen clean combustion, in particular to an ultra-low nitrogen emission burner. Background technique [0002] Nitrogen oxides are one of the main pollution sources of the atmosphere and an important precursor of PM2.5 secondary particulate matter. With the combustion and utilization of natural gas, petroleum liquefied gas and coal synthesis gas, the pollution of gas combustion, especially reducing the emission of nitrogen oxides, is an urgent task. Therefore, it is of great significance to control the generation of nitrogen oxides in the combustion process of natural gas and vigorously develop low-nitrogen clean combustion technology. Combustion facilities including burners should have the characteristics of high combustion efficiency and low emission pollution. In particular, attention should be paid to reducing the emission of nitrogen oxides to achieve ultra-low nitrogen clean combustion....

AI Technical Summary

Problems solved by technology

[0004] In the above technical solution, the staff blows air into the mixing cylinder through the fan, and the natural gas enters the mixing cylinder through the gas pipe. The cylinder and the mixing cylinder are simply connected by flanges. After a long period of use, the sealing of the connection between the connecting cylinder and the mixing cylinder may change due to loosening of the connecting bolts, damage to the flange gasket, or local deformation of the flange plate. Poor, gas leakage may even occur, posing a safety hazard

Images