不同形式破风圈对钢制脱硫塔风压分布特性的影响
DOI:
作者:
作者单位:

1.北京国电龙源环保工程有限公司;2.北京科技大学土木与资源工程学院

作者简介:

通讯作者:

中图分类号:

TU391

基金项目:

国家重点研发计划资助(2017YFF0205003)、国家自然科学基金项目(51178045)


Influence of Different Types of Wind Break Rings on Wind Pressure Distribution Characteristics of Steel Desulfurization Tower
Author:
Affiliation:

1.Beijing Guodian Longyuan Environment Engineering;2.College of Civil and Resource Engineering,University of Science and Technology Beijing

Fund Project:

the National Key R&D Program of China(Grant No.2017YFF0205003), the Key Program of National Natural Science Foundation of China (Grant No. 51178045).

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    摘要:

    传统烟囱结构上布置破风圈,可以进行有效的风振控制,钢制脱硫塔作为新型结构,在结构上布置不同形式破风圈,探究其能否改变结构的风压分布,减弱风振响应,进而保障结构的安全性能。本文基于数值风洞模拟方法,采用有限元软件Fluent对钢制脱硫塔结构进行数值模拟计算。通过改变风场长度、宽度、高度等特征尺寸,选择适当的风场进行数值风洞模拟。在结构上部布置螺旋板型及直立板型破风圈,通过改变其宽度、厚度参数尺寸,研究不同形式破风圈对钢制脱硫塔的风压分布影响。结果表明:选定合适的风场尺寸,可以消除风场尺寸效应的影响;在结构上部烟囱部位设置破风圈,可以显著改善上部结构的风压分布,进而降低结构在风荷载作用下的动力响应。

    Abstract:

    The traditional chimney structure with wind break ring can effectively control the wind vibration. As a new structure, steel desulfurization tower is arranged with different forms of wind break ring to explore whether it can change the wind pressure distribution of the structure, reduce the wind vibration response, and ensure the safety performance of the structure. Based on the numerical wind tunnel simulation method, the finite element software Fluent is used to simulate the structure of steel desulfurization tower. By changing the length, width and height of the wind field, the appropriate wind field is selected for numerical wind tunnel simulation. The spiral plate type and vertical plate type wind break ring are arranged on the upper part of the structure. The influence of different types of wind break ring on the wind pressure distribution of steel desulfurization tower is studied by changing its width and thickness parameters. The results show that the influence of wind field size effect can be eliminated by selecting the appropriate wind field size; the wind break ring can significantly improve the wind pressure distribution of the upper structure, and then reduce the dynamic response of the structure under the wind load.

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劳 俊,宋 波,陈 磊,等. 不同形式破风圈对钢制脱硫塔风压分布特性的影响[J]. 科学技术与工程, , ():

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  • 收稿日期:2020-05-19
  • 最后修改日期:2020-08-17
  • 录用日期:2020-08-17
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