纤维板热压尾气净化用湍球塔内流场均匀性研究

张鑫; 宋纪元; 丁涛; 王雷; 李伟; 周兆兵

doi:10.12326/j.2096-9694.2024057

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纤维板热压尾气净化用湍球塔内流场均匀性研究
Study on Uniformity of the Airflow Field in a Turbulent Ball Tower for Purification of Hot Press Exhaust Gas from Fiberboard Manufacturing
1.南京林业大学材料科学与工程学院,江苏南京 210037
2.常州益林机械有限公司,江苏溧阳 213333
3.宿迁亚森械友新材料有限公司,江苏宿迁 223700
2024年38卷第4期页码：66-71
纸质出版日期： 2024-07-30 ，
DOI： 10.12326/j.2096-9694.2024057
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张鑫,宋纪元,丁涛等.纤维板热压尾气净化用湍球塔内流场均匀性研究[J].木材科学与技术,2024,38(04):66-71.

ZHANG Xin,SONG Jiyuan,DING Tao,et al.Study on Uniformity of the Airflow Field in a Turbulent Ball Tower for Purification of Hot Press Exhaust Gas from Fiberboard Manufacturing[J].Chinese Journal of Wood Science and Technology,2024,38(04):66-71.
张鑫,宋纪元,丁涛等.纤维板热压尾气净化用湍球塔内流场均匀性研究[J].木材科学与技术,2024,38(04):66-71. DOI： 10.12326/j.2096-9694.2024057.

ZHANG Xin,SONG Jiyuan,DING Tao,et al.Study on Uniformity of the Airflow Field in a Turbulent Ball Tower for Purification of Hot Press Exhaust Gas from Fiberboard Manufacturing[J].Chinese Journal of Wood Science and Technology,2024,38(04):66-71. DOI： 10.12326/j.2096-9694.2024057.

摘要

为提升纤维板热压尾气净化系统中湍球塔除醛除尘的净化效率，研究支承板开孔率对塔内气体流场均匀性的影响。结果发现，支承板开孔率对塔内气体流场的速度分布和压降有显著影响。支承板开孔率为53.3%时，气体流场均匀性达到最优（CV值为0.295），压降较小（32 Pa），可有效地均匀驱动填料球进入流化状态。验证试验显示，湍球塔出风口处甲醛平均浓度比改进前降低，装置的净化效率明显提升。该结果可为纤维板生产排气净化系统湍球塔中其他结构优化设计提供研究思路与实验数据。

Abstract

To improve the purification efficiency of the turbulent ball tower for removing formaldehyde from fiberboard hot pressing exhaust gas

the authors evaluated the effect of the perforation ratio of the support plate on the uniformity of the gas flow field inside the tower. The results showed that the support plate’s perforation ratio had a significant impact on the velocity distribution and pressure consumption of the gas flow field inside the tower. When the perforation ratio of the support plate was 53.3%

the uniformity of the airflow field reached its optimum (CV value of 0.295)

and the pressure consumption was relatively small at 32 Pa

which could effectively drive the packing balls into a fluidized state uniformly. The verification experiment showed that the average concentration of formaldehyde at the outlet of the turbulence tower decreased compared to before the improvement

and the purification efficiency of the device was significantly improved. The result provides research ideas and experimental data for the optimization design of other structures in the turbulence tower of the exhaust purification system for fiberboard production.

关键词

纤维板湍球塔支承板开孔率气体流场均匀性数值模拟

Keywords

fiberboardturbulent ball towerperforation ratio of the support plateairflow uniformitynumerical simulation

references

张震宇. 中国纤维板产业发展现状分析[J]. 林业机械与木工设备, 2022, 50(7): 11-15, 23.

ZHANG Z Y. Analysis of the development situation of the fiberboard industry in China[J]. Forestry Machinery & Woodworking Equipment, 2022, 50(7): 11-15, 23.

刘倩玮张忠涛.中国人造板生产能力年度变化及趋势研判[EB/OL].(2024-02-28). https://www.forestry.gov.cn/c/www/lcdt/547380.jhtmlhttps://www.forestry.gov.cn/c/www/lcdt/547380.jhtml.

刘新宇. 纤维板热压排气特征及净化技术研究[D]. 南京: 南京林业大学硕士学位论文, 2019.

丁涛, 朱南峰, 刘新宇, 等. 中密度纤维板热压排气特征及净化技术分析[J]. 木材科学与技术, 2021, 35(1): 59-63.

DING T, ZHU N F, LIU X Y, et al. Characteristics and abatement technologies of medium density fiberboard hot-press emissions[J]. Chinese Journal of Wood Science and Technology, 2021, 35(1): 59-63.

赵佳锋. 纤维板热压排气净化装置及工艺参数的研究[D]. 南京: 南京林业大学硕士学位论文, 2021.

周兆兵, 丁涛, 赵佳锋, 等. 一种高温含尘废气排放净化方法及其装置: CN111318122B[P]. 2021-08-13.

OKASHA F, HEGAZI A A, RASHID A G. An investigation on drying process in a novel configuration of fluidized bed[J]. Mansoura Engineering Journal, 2015, 40(4): 12-24.

LI H W, DUAN W B, WANG S B, et al. Numerical simulation study on different spray rates of three-area water distribution in wet cooling tower of fossil-fuel power station[J]. Applied Thermal Engineering, 2018, 130: 1558-1567.

HEIDARINEJAD G, KARAMI M, DELFANI S. Numerical simulation of counter-flow wet-cooling towers[J]. International Journal of Refrigeration, 2009, 32(5): 996-1002.

CHEN X H, SUN F Z, CHEN Y L, et al. Novel method for improving the cooling performance of natural draft wet cooling towers[J]. Applied Thermal Engineering, 2019, 147: 562-570.

JONES W P, LAUNDER B E. The prediction of laminarization with a two-equation model of turbulence[J]. International Journal of Heat and Mass Transfer, 1972, 15(2): 301-314.

DURST F, LAUNDER B E, SCHMIDT F W, et al. Turbulent shear flows 4: Selected papers from the fourth international on symposium on turbulent shear flows[C]// Proceedings of the 11th Symposium on Turbulent Shear Flows, France,1997.

刘洋, 叶学民, 杨天康, 等. 旋转雾化器液滴破碎过程及颗粒分布的数值研究[J]. 电力科学与工程, 2023, 39(4): 69-78.

LIU Y, YE X M, YANG T K, et al. Numerical study on droplet breakage and particle distribution in rotating nebulizers[J]. Electric Power Science and Engineering, 2023, 39(4): 69-78.

马文勇, 刘剑寒, 张晓斌, 等. 旋转圆柱气动特性的雷诺数效应研究[J]. 振动与冲击, 2022, 41(7): 46-52.

MA W Y, LIU J H, ZHANG X B, et al. Reynolds number effect on aerodynamic characteristics of a rotating circular cylinder[J]. Journal of Vibration and Shock, 2022, 41(7): 46-52.

丁德承. 湍球塔若干设计参数的确定[J]. 化工厂设计, 1983(4): 16-24.

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