第37卷第4期
湖南大学学报(自然科学版)
V01.37,No.4
2 0 1
0年4月
Journal
of Hunan University(NaturaI Sciences)
Apr.2
0
1
0
文章编号:1674—2974(2010104-0017—05
高温高湿造纸厂房围护结构冬季防结露研究
龚光彩”,焦俊军1,谢赛男1,张国伟1,李国庆2,刘元坤1,张
泉
(1.湖南大学土木工程学院,湖南长沙410082;2.中国轻工业长沙工程有限公司,湖南长沙410004)
摘
要:高温高湿大空间造纸厂房夏季闷热、冬季围护结构结露滴水,影响纸张正常生
产.实地测量了厂房围护结构热工性能、通风、温湿度分布及造纸机械散热散湿,并对厂房进
行数值模拟,分析围护结构结露原因.分析表明:厂房屋顶和侧墙交界处,湿部屋面,侧墙侧
窗及天窗等区域最容易结露.排热除湿通风方式中,在湿部操作区侧墙加局部排风效果最
佳.加强上述区域保温及减少玻璃窗数量,以及在侧墙加局部排风是防止围护结构结露的有
效方法.在实际工程中采用这些措施后,减少了围护结构结露.
关键词:围护结构;结露;高温高湿;厂房;造纸
中图分类号:TUlll.4;TU277.3
文献标识码:A
Study of the Condensation Prevention of
Paper-making
Plant
Envelope under High
Temperature
and Humidity
Environment
in
Winter
GoNG
Guang—cail+-JIAO Jun_junl-XIE
Sai—nanl-ZHANG Guo-weil,
LI Guo-qin92-LIU Yuan-kunl,Z HANG
Quanl
(1.College
of Civil Engineering,Hunan Univ,Changsha.Hunan
410082,China;
2.China CEC Engineering Corporation,Changsha.Hunan
410004,China)
Abstract:In large-space paper—making plants with high temperature and humidity,it was muggy in
summer and building envelope was dewing in winter,which affects the production of papers.To analyze
the condensation of plant envelope,thermal
performance,ventilation,temperature
and humidity distribu—
tion,heat and wet dissipation were investigated,and the plant was numerically simulated.The
j
uncture
of
the roof and sidewall。ceiling—wall and the windows of wet department were
prone
to
condensation.Adding
local ventilation in operation-side wall of wet department was the optimal ventilation that removed heat and
wet.Enhancing the insulation of envelope,reducing glazed windows and adding local ventilation in side—
wall were effective methods
to
prevent
plant envelope condensation.It has been shown that this is
an
effec—
tire measure for condensation prevention in practical
cases.
Key words:building envelope;condensation;high temperature and humidity;plant;paper industry
近年来,造纸工业得到快速发展,造纸厂房也越
来越大‘¨.在纸张的生产过程中,散发大量的热与
湿,使造纸厂房夏季闷热,冬季湿冷,高温高湿的环
境不仅影响工人的身体健康,而且使围护结构结露
滴水,墙面屋顶受潮发霉陋引.究其原因,主要是造
纸厂房围护结构保温性能不好和排热排湿通风设计
不合理.Holt
N
J等人‘6。总结了对铝电解厂房通风
有重要影响的几个因素;郑万兵‘73对室内游泳池围
-
收稿日期:2009--07—14
基金项目:湖南省科技攻关重点资助项目(08GK2016);高大空间工业厂房的(高温高湿)环境调查与模拟研究(20079437456)
作者简介:龚光彩(1965一)。男,湖南澧县人,湖南大学教授,博士生导师
t通讯联系人,E—mail{gcgon92000@yahoo.corn.cn
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