Biomass self-heating gasification furnace for assisting flexible peak regulation of thermal power plant and use method of biomass self-heating gasification furnace

Abstract

The invention relates to a biomass self-heating gasification furnace for assisting a thermal power plant in flexible peak regulation, the biomass self-heating gasification furnace comprises a sample introduction pipe and a reaction pipe, the sample introduction pipe is arranged at the upper end of the reaction pipe, the top end of the sample introduction pipe is closed, the lower end of the sample introduction pipe is inserted into the reaction pipe and is communicated with the reaction pipe, and the reaction pipe is communicated with the sample introduction pipe. The sample introduction pipe comprises a wide sample introduction pipe, an upper circular-truncated-cone-shaped pipe, a vertical sample introduction pipe and a lower circular-truncated-cone-shaped pipe which are sequentially connected from top to bottom and are coaxially arranged, and the reaction pipe comprises an outer circular-truncated-cone-shaped pipe, an annular plate, a vertical reaction pipe, a conical pipe and a cylindrical pipe which are sequentially connected from top to bottom and are coaxially arranged; the outer circular-truncated-cone-shaped pipe is connected to the outer side surface of the upper circular-truncated-cone-shaped pipe in a sleeving manner and is in sealed connection with the upper circular-truncated-cone-shaped pipe; and an air distribution plate is arranged in the middle of the reaction vertical pipe. The system has the beneficial effects of high integration level, energy conservation and convenience in operation.

Description

technical field [0001] The invention belongs to the technical field of combustion equipment in thermal power plants, and in particular relates to a biomass self-heating gasifier and a use method for assisting flexible peak regulation in thermal power plants. Background technique [0002] Gasification technology has shown great advantages in the field of converting waste plastics and biomass into clean fuels and chemical raw materials. my country's agricultural biomass waste is abundant, and using it as fuel for power generation can not only alleviate the consumption of increasingly depleted fossil fuels , and can help my country's carbon peak and carbon neutral goals to be realized as soon as possible. Large-scale 600 MW and 1000 MW coal-fired power plant boilers all use the method of grinding coal into fine powder and blowing it into the furnace for combustion. Biomass is gasified into combustible gas, which can be combusted in a power plant boiler by configuring a gas burn...

AI Technical Summary

Problems solved by technology

[0003] Existing gasifiers that use water vapor as the gasification medium integrate the solid sampling device and the gas sampling device on the sampling tube, while the liquid sampling device is used as an independent part. The heating furnace heats the working medium water into water vapor, and then introduces it into the reaction tube. This method has many serious defects and deficiencies. First, the experimental system is complicated and the integration level is low.

The liquid sampling device is an independent part, including the feed water pump, preheating furnace, and heating pipe, which not only requires more investment funds, but also takes up more site space and increases the difficulty of gasifier construction; second, In the gasification reaction, the combination of preheating furnace and gasifier will consume more energy

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