A two-stage cascade compound atomizing nozzle for biomass pyrolysis oil at room temperature:design and simulation

CHANG Tongli; ZHAO Yunjing; LIU Xuezhe; WANG Shuyang

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A two-stage cascade compound atomizing nozzle for biomass pyrolysis oil at room temperature:design and simulation

Thermal Power Generation Vol. 45, Issue 3, Pages: 105-109(2016)

更新时间：2025-09-28

- A two-stage cascade compound atomizing nozzle for biomass pyrolysis oil at room temperature:design and simulation
- 作者机构：
  
  东北林业大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK6
- Published：2016
- 稿件说明：
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CHANG Tongli, ZHAO Yunjing, LIU Xuezhe, et al. A two-stage cascade compound atomizing nozzle for biomass pyrolysis oil at room temperature:design and simulation[J]. Thermal Power Generation, 2016, 45(3): 105-109.
DOI：

CHANG Tongli, ZHAO Yunjing, LIU Xuezhe, et al. A two-stage cascade compound atomizing nozzle for biomass pyrolysis oil at room temperature:design and simulation[J]. Thermal Power Generation, 2016, 45(3): 105-109. DOI：

摘要

针对生物质裂解油黏度大、密度大、表面张力大

雾化困难等特点

设计了一种采用内混级雾化和Y型雾化两级串联复合结构的新型生物质裂解油常温雾化喷嘴。该喷嘴内混级可使生物质裂解油与压缩空气先进行初级雾化

产生油气混合流;二级雾化采用Y型喷嘴结构

油气流与高速气流分别由油孔和气孔进入混合室并发生碰撞

使微小油液滴进一步破碎雾化。采用Fluent软件对该两级雾化喷嘴常温雾化过程进行了模拟

结果表明该喷嘴雾化粒径较为一致

散布均匀

有利于生物质裂解油充分燃烧。

Abstract

Biomass pyrolysis oil is a kind of renewable energy with low carbon and environmental protection

which is produced by agricultural and forestry waste with biomass pyrolysis technology.Due to strong viscosity

large density and high surface tension

the atomization of the biomass pyrolysis fuel at room temperature is very difficult.Thus

this paper has designed a kind of new type room temperature atomizing nozzle

which has two tandem composite structure including the internal mixing and Y type atomizing.The biomass pyrolysis fuel is preliminarily atomized with the compressed air to produce oil and gas mixture flow.The second-stage atomizing nozzle is Y type nozzles.The oil and gas mixture flow and high speed airflow enters the mixing chamber respectively by the oil holes and the gas holes.They collide together and cause small size oil drops break up further.Moreover

the normal temperature atomization process of the new type two-stage is simulated by the Fluent software

and the simulation results show that the particle atomized by this nozzle has similar size and uniform dispersion

which is helpful to the full combustion of biomass pyrolysis oil.

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Related Author

WANG Shuyang

LIU Xuezhe

ZHAO Yunjing

CHANG Tongli

MA Binbin

WEI Le

ZHANG Binwen

LI Jian

Related Institution

School of Mechatronics Engineering,Northeast Forestry University

School of Control and Computer Engineering, North China Electric Power University

School of Automation and Information Engineering,Xi’an University of Technology

Xi'an Thermal Power Research Institute Co.,Ltd.

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