Novel pulverized coal boiler hydrogen burner and system thereof

Abstract

The invention relates to a power grid system, in particular to a novel pulverized coal boiler hydrogen burner and a system thereof.The novel pulverized coal boiler hydrogen burner comprises a pulverized coal burner and a hydrogen ignition burner nozzle, the pulverized coal burner and the hydrogen ignition burner nozzle are arranged side by side, and a nozzle of the pulverized coal burner and a nozzle of the hydrogen ignition burner nozzle are matched with each other; a cavity allowing hydrogen to pass through is formed in the hydrogen ignition burner, and the hydrogen in the cavity is sprayed out of a hydrogen ignition burner nozzle. According to the technical scheme, an original combustor system is improved, the functions of hydrogen output, ignition in a furnace and stable combustion are added, hydrogen is formed through power plant residual electricity electrolysis, the whole process is carried out in real time, the hydrogen obtained through electrolysis is fed back to a coal-fired unit for the power generation process, the problem that residual electricity is difficult to recover is solved, and the energy consumption is reduced. And the combustion effect of fire coal in the pulverized coal boiler is improved, and it is guaranteed that a coal-fired unit keeps a good operation effect.

Description

technical field [0001] The invention relates to a power grid system, in particular to a novel pulverized coal boiler hydrogen burner and its system. Background technique [0002] At present, due to the State Grid’s certain control over the power generation of thermal power plants, the power plants are required to operate at 100% load during the daytime peak period, and the power generation capacity of the power plants is limited during the low power consumption period at night, resulting in the load of the power plants at night. Usually around 70%. Because the load level of thermal power plants is affected by power grid scheduling, it cannot operate at rated load for a long time. The consequence is that the unit load changes greatly, the failure rate increases, and the unit deviates from the design value, the efficiency is relatively low, and the coal consumption rate is high. The decline in resource utilization affects the safety, stability and economic benefits of thermal ...

AI Technical Summary

Problems solved by technology

Because the load level of thermal power plants is affected by power grid scheduling, it cannot operate at rated load for a long time. The consequence is that the unit load changes greatly, the failure rate increases, and the unit deviates from the design value, the efficiency is relatively low, and the coal consumption rate is high. The resource utilization rate drops, which affects the safety, stability and economic benefits of thermal power plant unit operation

If the power plant is guaranteed to continue to operate at the rated load, the excess power cannot be transmitted to the national grid, and it is difficult to store and utilize it effectively, resulting in a serious waste of resources

At present, there is no effective solution to ensure that the power plant is in good condition for a long time and can effectively dispatch excess power when the power grid is in low peak.

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