Boiler thermodynamic system and process by utilizing biomass particles as fuel and technology

Abstract

The invention claims a boiler thermodynamic system and process by utilizing biomass particles as fuel. The system comprises a boiler body, an economizer, a tar processor, a bag-type dust collector, a draught fan and a feeding system; a combustor of the boiler body forms three combustors through a front arch and a rear arch; biomass forming fuel is filled into a first combustor of a gasifying direct-fired boiler; the negative pressure is kept at -20Pa; the temperature is kept at 1200-1300 DEG C; combustible gas enters a second combustor to be gasified and combusted; the temperature is kept at 1000-1100 DEG C and the negative pressure is kept at -20Pa; biomass gas passes through a third combustor; the temperature of the third combustor can be up to 1300-1500 DEG C, so that hot air is formed; the hot air radiates a high-temperature heat pipe in the boiler to quickly heat the water. The tar and the pollutant are fully decomposed and combusted in the boiler, so that output volume of the nitric oxide is small, the tail gas is up to zero discharge, the heat loss is low and the thermal efficiency can be up to 89%.

Description

Technical field [0001] The invention relates to a process for a boiler thermal system using biomass pellets as fuel. Background technique [0002] Existing boilers generally use coal, oil, electric heating and other forms to produce steam. Coal and oil boilers are too dependent on fossil fuels. Fossil fuels are important human resources and play an important role in the progress of human society. Fossil fuel is a non-renewable resource. At the same time, the products of the combustion of fossil fuel will cause great pollution to the environment. For example, the carbon dioxide emitted is global warming, and the emitted nitrogen oxides and sulfur dioxide will form acid rain, which will cause acid rain. Destroy buildings, destroy forests, and pollute lakes. Existing coal-fired, oil-fired, and electric heating equipment all require a large amount of fossil fuels, especially coal-fired boilers, which generally suffer from low thermal efficiency and serious waste of resources; o...

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Problems solved by technology

[0002] Existing boilers generally use coal-fired, oil-fired, electric heating, etc. to produce steam. Coal-fired and oil-fired boilers are too dependent on fossil fuels. Fossil fuels are important resources for human beings and play an important role in the progress of human society. However, Fossil fuel is a non-renewable resource. At the same time, the products of fossil fuel combustion will cause great pollution to the environment. For example, the emission of carbon dioxide will cause global warming, and the emission of nitrogen oxides and sulfur dioxide will form acid rain, which will cause Destroy buildings, destroy forests, pollute lakes

Existing coal-fired, oil-fired and electric heating equipment all require a large amount of fossil fuels, especially coal-fired boilers, which generally have low thermal efficiency and serious waste of resources; oil-fired boilers have increased the country's dependence on oil; electric heating boilers The cost of use is too high for most enterprises to bear

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