HS (W) ultra low nitrogen burner adopts the world's leading vacuum pump principle to suck back the flue gas after burner combustion for secondary combustion. The internal circulation of flue gas is directly increased from 15% of the previous burner to 30% now, eliminating the external FGR pipeline. Then the furnace temperature is uniformly controlled at the appropriate temperature, so as to achieve the effect of low nitrogen combustion, and solve the problems of condensate corrosion and combustion safety caused by the use of FGR. It is a subversive innovation of combustion technology. The electronic proportional combustion control system is adopted to provide all-round combustion safety protection and load regulation, which not only meets the safety load requirements of various boiler systems, but also ensures the safe operation of burners.