Physical image of the fixed bed gas generator device
The installed capacity of the internal combustion energy production device by gasification of biomass is 160 kW, 200 kW, 400 kW, 600 kW, Specifications of 800 kW, 1000 kW, etc., the maximum output power can be above 1.4 MW.
In the case of power generation scale of 200 kW and below, gasifiers generally use downdraft fixed bed gasifiers. A typical downdraft fixed bed gasification power generation device is shown in the figure below:
< p>The gasifier is a downdraft fixed bed gasifier which can continuously feed materials and continuously evacuate ashes. The material port is at the top of the gasifier. Raw materials can be fed from the high level silo or lifted into the gasifier via the loader. The ashes andthe slag is discharged from the slag discharger.Gas cooling adopts reliable multi-stage water washing method to purify it to meet the requirements of internal combustion engines. The internal combustion engine is a variant of 6250 diesel generator. It adopts low compression ratio to meet the performance requirements of biomass gasification gas, external monomer mixer structure and simple and simple electric ignition system. reliable.
Economic and technical indicators
In the case of large-scale electricity production, gasifiers generally use fluidized beds. For technical reasons, the maximum power output of a single internal combustion engine is 200 kW. Therefore, when larger power generation power is required, a fluidized bed gasifier is used to drive multiple internal combustion engines insame time.
The fluidized bed gasifier has high gasification efficiency and large capacity. The raw materials are pellets or crushed raw materials, and the cyclone separator removes the ash or granular impurities. The outlet temperature of the gasifier is about 600℃~650℃, and the gas is cooled and dedusted by multi-stage water washing. Several 200 kW generators are used to produce electricity in parallel.