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Novel pulverized coal boiler hydrogen burner and system thereof

A pulverized coal burner and pulverized coal boiler technology, which is applied in the field of power grid system, can solve the problems of waste of resources, decrease of resource utilization rate, large unit load changes, etc., and achieve the effect of improving the combustion effect and the best operation effect

Pending Publication Date: 2022-04-08
戴大为
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Novel pulverized coal boiler hydrogen burner and system thereof
  • Novel pulverized coal boiler hydrogen burner and system thereof
  • Novel pulverized coal boiler hydrogen burner and system thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Based on the problem that the operating load of the power plant is difficult to balance, and the surplus electricity retained after being delivered to the national grid cannot be effectively utilized, the invention provides a method for utilizing surplus electricity in a power plant, which sends the surplus electricity generated by the coal-fired unit of the power plant to an electrolytic hydrogen production device to prepare hydrogen , the hydrogen produced is sent back to the pulverized coal boiler of the coal-fired unit through the pipeline. Among them, electrolytic hydrogen production, hydrogen transmission and coal-fired unit power generation are carried out simultaneously, and hydrogen is transported to the pulverized coal boiler in real time; hydrogen and pulverized coal burners work together to ignite and stabilize combustion, and the sum of the output flow of hydrogen and pulverized coal burners Same as raw outgoing traffic. Its specific structure is as follows...

Embodiment 2

[0041] See attached Figure 1-3 , on the basis of embodiment 1, the air duct of the pulverized coal burner 4.1 is connected to the hot air flow for improving the temperature of the inlet air of the pulverized coal burner; Hot air flow, the heat exchange system of the pulverized coal boiler includes several heat conducting fins 6 arranged on the outer wall of the pulverized coal boiler and the air flow delivery pipes 7 distributed in a serpentine manner between adjacent heat conduction fins, the inlet of the air flow delivery pipes is connected to Blower 8, the outlet of the air delivery pipe 7 communicates with the air duct of the pulverized coal burner 4.1, and the blower 8 is arranged in the air box 9 with a filter screen.

[0042] Based on the above technical solution, the heat of the pulverized coal boiler itself is used to heat the heat conduction sheet, so that the airflow entering the airflow conveying pipe passes through the airflow conveying pipe 7 arranged in a serpe...

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PUM

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D17/00F22B31/00
Inventor 戴大为
Owner 戴大为
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