|本期目录/Table of Contents|

[1]殷德山,杨斌,周书林,等.接包机排风罩捕集区域受侧向风影响的研[J].中国安全生产科学技术,2014,10(8):103-106.[doi:10.11731/j.issn.1673-193x.2014.08.018]
 YIN De-shan,YANG Bin,ZHOU Shu-lin,et al.Study on influence of cross draft to capture zone of hood in discharging bag conveyer[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(8):103-106.[doi:10.11731/j.issn.1673-193x.2014.08.018]
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接包机排风罩捕集区域受侧向风影响的研
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年8期
页码:
103-106
栏目:
职业安全卫生管理与技术
出版日期:
2014-08-31

文章信息/Info

Title:
Study on influence of cross draft to capture zone of hood in discharging bag conveyer
作者:
殷德山杨斌周书林樋口清高陈建武刘宝龙
(国家安全监管总局 尘毒危害预防与控制技术重点实验室,北京 100029
Author(s):
YIN De-shan YANG Bin ZHOU Shu-lin Higuchi Kiiyotaka CHEN Jian-wu LIU Bao-long
(State Administration of Work Safety Key Lab of Toxic and Dust Hazards Prevention and Control, Beijing 100029, China)
关键词:
排风罩侧向风捕集效率数值模拟
Keywords:
hood cross draft capture efficiency numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.08.018
文献标志码:
A
摘要:
排风罩是局部通风系统的主要设备之一,其集尘性能直接关系到生产作业场所粉尘的控制效果,排风罩性能受诸多因素制约,当系统参数确定后,考虑外界干扰的影响就显得尤为重要。作者针对水泥行业包装作业典型生产工艺过程和现场布置,运用现场调查、试验性公式计算与数值模拟等研究方法,对包装车间接包机排风罩外部气流流场进行量化研究。通过现场调查获取流场特点与数据,由实验性公式计算和数值模拟得出排风罩捕集区域的特征距离、流场特征线及典型平面的风速分布云图。从而得出结论:侧向风对接包机排风罩捕集效率的影响很大,排风罩捕集效率下降达50%。
Abstract:
Hood is one of the major equipments for factory ventilation, and its performance has the direct influence on control of the dust in factories. In gerenal the capability of hood depends on many factors of the system. Once the running parameters of the system were determined, it is most important to judge the influence of outward interference. Based on the cement package process and the onsite layout, the field survey, emprical formula calculation and numerical simulation were applied to study exterior flow field of the hood influenced by the cross draft. The characteristics and geometrical dimensions of flow field were obtained by field survey, and the critical distances, the critical streamlines and the velocity contours on typical plates were obtained by emprical formula calculation and numerical simulation. The results showed that the capture efficiency of the hood was greatly influenced by cross draft, being decreased by 50%.

参考文献/References:

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[9]周书林.外置式排风罩条缝口开口面积与气流均匀性研究[J].中国安全生产科学技术,2013,9(7):159-163 ZHOU Shu-lin. Study on slots area and uniformity of capturing hoods[J]. Journal of Safety Science and Technology, 2013,9(7): 159-163
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备注/Memo

备注/Memo:
中国安全生产科学研究院专项资金项目(2014JBKY03);国家安监总局第二批安全科技“四个一批”科技攻关课题
更新日期/Last Update: 2014-09-26