Gasifying device for recycling biomass for engine exhaust

A technology of waste gas recirculation and gasification device, which is applied in the direction of power plant, arrangement combined with internal combustion engine fuel supply, transportation and packaging, etc., to achieve the effect of increasing biomass gasification temperature, increasing gasification efficiency and reducing NOx emissions

Inactive Publication Date: 2006-03-22
JIANGSU UNIV
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  • Description
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Problems solved by technology

[0005] In the practical application of biomass gas and diesel dual-fuel engines, there has not been an engine exhaust gas recirculation biomass gasification device that combines partial engine exhaust gas recirculation and uses the heat of high-temperature exhaust gas to increase the temperature of biomass gasification in the gasifier

Method used

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  • Gasifying device for recycling biomass for engine exhaust
  • Gasifying device for recycling biomass for engine exhaust

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Embodiment Construction

[0016] Such as figure 1 As shown, the embodiment of the present invention adopts a simple and reliable downdraft biomass gasifier 1 to gasify the biomass, cool the high-temperature biomass gas through the partition cooler 2, and pass through the swirl filters 3 and 4. The two-stage cyclone filter removes impurities such as ash and tar, and enters the biomass gas pressure regulator box 5, and the biomass gas flow control valve 6 controls the amount of gas entering the engine.

[0017] The engine exhaust gas recirculation biomass gasification device described in the present invention is as figure 2 As shown, it is provided with the bifurcated exhaust pipeline 12 of the dual-fuel engine, which is connected with the gasifier circumferential air inlet 16 through the reducer 13 and the exhaust gas recirculation control valve 11 located on the pipeline; Part of the high-temperature exhaust gas 14 at a certain pressure passes through the bifurcated exhaust pipe 12 and is controlled ...

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Abstract

The present invention relates to engine, and is especially exhaust circulating and biomass gasifying method and device for engine. Partial high temperature exhaust with certain pressure is jetted to the gasifying furnace together with fresh air and used as gasifying agent to raise biomass gasifying temperature, raise gasifying efficiency and lower tar content in the inflammable gas. The present invention solves the problems of engine exhaust circulation and its control. The present invention can reduce NOx exhaust of double fuel engine, raise biomass gasifying efficiency and lower tar content in the biomass gas.

Description

technical field [0001] The invention relates to the field of engines, in particular to an engine waste gas recirculation biomass gasification device. Background technique [0002] In the field of engines, exhaust gas recirculation (Exhaust Gas Recycle, referred to as EGR) is a mature technology, which has been adopted in many models at home and abroad to reduce its NO x emission. The EGR rate can be higher when the load is medium, and the EGR rate should be lower when the load is heavy to ensure the power of the engine. When idling, the EGR rate should not be used in order to stabilize the engine combustion. Using an appropriate EGR rate significantly reduces NO x At the same time of emission, it has no great impact on the power and economy of the engine. [0003] In the field of biomass gasification, the fixed bed gasification method generally uses air as the gasification agent. Whether it is an updraft, downdraft or flat suction airflow method, there are devices with si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/10
Inventor 罗福强汤东梁昱李小华
Owner JIANGSU UNIV
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