Low-nitrogen fuel oil burner

Abstract

The invention discloses a low-nitrogen fuel oil burner. The low-nitrogen fuel oil burner comprises a flame tube which is connected with the front end of a burner shell through a rotating flange assembly, a center base assembly is installed at the center in an inner cavity of the rotating flange assembly and an inner cavity of the flame tube, the center base assembly comprises a center inner pipe,a diffusion disc is installed at the front end of the center inner pipe through a center supporting frame, an oil nozzle and an ignition needle assembly are arranged in the center inner pipe, a swirler is arranged on the center inner pipe in a sleeving mode, a high-voltage ignition transformer installed on the burner shell is connected with the ignition needle assembly through a circuit, a motor is connected with an oil pump and oil path system assembly, the oil pump and oil path system assembly is connected with the oil nozzle, a flue gas recirculation opening is further formed in the side face of the burner shell, a combustion air inlet box is arranged on the flue gas recirculation opening, a flue gas recirculation connecting port assembly is arranged on the combustion air inlet box, andthe flue gas recirculation connecting port assembly is in opening-taking connection with the front portion of a boiler flue gas pipe economizer at the position ranging from 120 degrees to 220 degrees. The low-nitrogen fuel oil burner has the beneficial effects the combustion chamber temperature is reduced, and the generation of NOX is reduced.

Description

technical field [0001] The invention relates to the technical field of burners, in particular to a low nitrogen fuel burner. Background technique [0002] With the rapid development of industry in today's society, coupled with the increasing attention of the international community to the protection of the natural environment, the demand for low-nitrogen burners is gradually increasing, and national and local regulations on nitrogen oxides (NO X ) emission requirements are getting higher and higher, such as low nitrogen gas burner nitrogen oxides (NO X ) emission requirement is less than 30mg (O2=3.5%), nitrogen oxides (NO X ) emission requirement is less than 50mg (O2=3.5%); at present, among the low-nitrogen burners produced in my country, nitrogen oxides (NO X ) emissions have been able to meet national and local standards, however, low-nitrogen fuel burner nitrogen oxides (NO X ) emissions have not yet reached national and local standards, and we are still working har...

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Problems solved by technology

[0002] With the rapid development of industry in today's society, coupled with the increasing attention of the international community to the protection of the natural environment, the demand for low-nitrogen burners is gradually increasing. X ) emission requirements are getting higher and higher, such as low nitrogen gas burner nitrogen oxides (NO X ) emission requirement is less than 30mg (O2=3.5%), nitrogen oxides (NO X ) emission requirement is less than 50mg (O2=3.5%); at present, among the low-nitrogen burners produced in my country, nitrogen oxides (NO X ) emissions have been able to meet national and local standards, however, low-nitrogen fuel burner nitrogen oxides (NO X ) emissions have not yet reached the national and local standards, and we are still working hard to explore and seek better technical solutions to solve this problem

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