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实验室通风系统设计
更新时间:2020-01-06 22:12

 

SHIYANSHISHIYONGYUWANCHENGGEZHONGSHIYANGONGZUODETESHUCHANGSUO,QITONGFENGXITONGSHEJIDEHAOHUAI,ZHIJIEGUANXIDAOSHIYANRENYUANDESHENTIJIANKANG、SHIYANSHUJUDEZHUNQUEXING、SHIYANSHIDECHUTOUZIJIYUNXINGFEIYONG。

ZAISHIYANCAOZUOGUOCHENGZHONGKENENGCHANSHENGYOUDUYOUHAIQITI,WEIQUEBAOSHIYANRENYUANANQUAN,CHANSHENGYOUDUYOUHAIQITIDESHIYAN,JINLIANGZAIPAIFENGJUHUOSHENGWUANQUANJUNEIJINXING,BUNENGZAIPAIFENGJUNEIJINXINGDE,YAOSHEJUBUPAIFENGZHAO、WANXIANGPAIQIZHAODENGJUBUPAIFENGSHESHI,TONGSHI,YANSHIYAOSHEQUANMIANTONGFENG(HUOCHENGFUZHUPAIFENG)。TONGFENGXITONGSHEJIDEMUDE,SHIYAOKONGZHIPAIFENGJUNEIDEYOUDUYOUHAIQITIBUWAIYI,MANZUFANGJIANHUANQICISHUYAOQIU,WEICHIFANGJIANZHENGQUEDEYALI,WEISHIYANRENYUANTIGONGYIGEANQUAN、SHUSHIDEGONGZUOHUANJING。

一、实验室常用的通风系统

彩宝贝 SHIYANSHITONGFENGXITONGJINGLILEDINGFENGLIANGXITONG、SHUANGFENGLIANGXITONG、BIANFENGLIANGXITONGSANGEFAZHANJIEDUAN。

1排风系统

定风量系统:

PAIFENGJICAIYONGDANSUDINGPINFENGJI,PAIFENGLIANGJIBENBUBIAN,XITONGWUFASUIPAIFENGJUSHIYONGSHULIANGJIPAIFENGJUMENKAIQIGAODUERDIAOJIEFENGLIANG,YINCICAIYONGGAIXITONGSUODAIPAIFENGJUBUYIDAYU3 GE,GAIXITONGYOUDIANSHITOUZIXIAO,KONGZHIJIANDAN;QUEDIANSHIPAIFENGJUMIANFENGSUNANYIBAOZHENG,HUIYOUBUFENYOUDUYOUHAIQITICONGPAIFENGJUZHONGYICHU(MIANFENGSUGUOXIAOHUOGUODADOUNENGZAOCHENGQITICONGPAIFENGJUZHONGYICHU),QIEYUNXINGFEIYONGGAO。

双风量系统:

PAIFENGJICAIYONGSHUANGSUFENGJI,JIAODINGFENGLIANGXITONGYOUSUOGAIJIN,DANMEIYOUCONGGENBENSHANGGAIBIANDINGFENGLIANGXITONGDEQUEDIAN,CAIYONGGAIXITONGSUODAIPAIFENGJUBUYIDAYU5 GE,MUQIANYINGYONGBUDUO。

变风量系统:

PAIFENGJICAIYONGBIANPINFENGJI,ZAIPAIFENGZHUFENGDAOSHANGSHEYALICHUANGANQI,JIANGYALICHUANGANQICEDEDEYALIYUSHEDINGYALIZHIBIJIAO,YOUBIANPINQIDIAOJIEFENGJIZHUANSU,DADAODIAOJIEFENGLIANGDEMUDE。ZAIBIANFENGLIANGXITONGZHONGPAIFENGJUCAIYONGMIANFENGSUKONGZHI,CAIYONGGANYINGQUHONGWAITANTOUJIANCEPAIFENGJUQIANRENYUANDECUNZAIYUFOULAIKONGZHIJUMENMIANFENGSU,DANGCAOZUORENYUANCHUXIANZAIPAIFENGJUQIANSHI,HONGWAITANTOUCHUANGANQISHUCHUXINHAO,JIANGPAIFENGJUMIANFENGSUSHEDINGDAOGAOPAIFENGLIANGMOSHI,CISHIPAIFENGJUMIANFENGSUKONGZHIZAI0.5m/s, DANGCAOZUORENYUANLIKAIDESHIHOU,HONGWAITANTOUCHUANGANQISHUCHUXINHAO,JIANGPAIFENGJUMIANFENGSUSHEDINGDAODIPAIFENGLIANGMOSHI,CISHIPAIFENGJUMIANFENGSUKONGZHIZAI0.3m/s,DANGSHIYANSHINEIWURENSHI,PAIFENGJUMIANSHEDINGDAOZUIXIAOPAIFENGLIANGMOSHI,JIZHIBANPAIFENGMOSHI,WEICHIPAIFENGJUHEGUANDAOZHONGBAOCHIFUYA,BAOZHENGYOUDUYOUHAIQITIBUWAIYI,YOUSHIWEIMANZUSHIYANSHIZUIXIAOPAIFENGLIANGYAOQIU,FANGJIANHAIYAOSHEFUZHUPAIFENG,DANGPAIFENGJUPAIFENGLIANGBUMANZUSHIYANSHIZUIXIAOPAIFENGLIANGYAOQIUSHI,FUZHUPAIFENGZIDONGDAKAI,BAOZHENGSHIYANSHIZUIXIAOPAIFENGLIANG。GAIXITONGYOURUXIAYOUDIAN:①ZAISHIYANCAOZUOGUOCHENGZHONG,PAIFENGJUMENKAIDUBIANHUAJIAODA,CAIYONGMIANFENGSUKONGZHIFEICHANGHELI,YUCHUANTONGDINGFENGLIANGXITONGBIJIAO,YUNXINGNENGHAOYAOJIESHENGHENDUO,QIEDUICAOZUORENYUANDERENSHENANQUANJISHIYANJINGDUDEYINGXIANGDOUGENGYOULI;②YIGEXITONGKEDAIDUOGEPAIFENGJU,KEGONGYONGYIGEZHUGUANDAO,FENGJINGJIZHONG,YOULIYUSHIYANSHIGONGYIBUZHI,JIANSHAOTUJIANZAOJIA;③YOUYUDUOGEPAIFENGJUHEYONGYITAOPAIFENGXITONG,ZAISHIJIGONGZUOGUOCHENGZHONG,PAIFENGJUBUKENENGTONGSHIDADAOZUIDAPAIFENGLIANG,YINCIZAIPAIFENGSHEBEIJIZHUFENGDAOXUANZESHIKEKAOLVYIDINGDETONGSHISHIYONGXISHU,BIDINGFENGLIANGXITONGYAOXIAOYIXIE;④YOUYUPAIFENGJIZHONG,BIANYUNENGLIANGHUISHOUJIPAIFENGCHULI。

事故排风:

DANGSHIYANSHINEIYOUGAOWEIXIANXINGSHIYANSHI(YIBANYOUGONGYISHEJIRENYUANTIGONG),PAIFENGXITONGSHEJIYINGKAOLVFASHENGTURANSHIGUSHI,NENGJISHIJIANGYOUDUYOUHAIQITIPAICHU,PAIFENGLIANGAN12 CI/hHUANQICISHUJISUAN。

2补风系统

SHIYANSHIYIBANPAIFENGLIANGJIAODA,QIELIANXUPAIFENGSHIJIANJIAOZHANG,RONGYIZAOCHENGSHINEIFUYAGUODA,WEIPINGHENGSHINEIWAIYACHA,XUYAODUISHIYANSHIJINXINGBUFENG,YIWEICHIFANGJIANSHEDINGDEYALI。

补风量计算:

补风量应根据房间排风量及设定的负压值(相对相邻房间、走廊或大气)计算确定,补风量按下列公式计算:Lb=Lp-Ly式中,Lb 为补风量,m3/h;Lp 为排风量,m3/h;Ly为维持负压所需风量,也叫余风量,m3/h;Ly可按负压值与房间换气次数的关系确定,也可按缝隙法计算。

补风方式:

彩宝贝 YOUZIRANBUFENGHEJIXIEBUFENGLIANGZHONGFANGSHI。

彩宝贝 ZIRANBUFENGBUSHEBUFENGJI,JIANGSHIWAIXINFENGJINGGUOLVQI、GUANDAOJINRUSHINEI,YOUYUXINFENGSHIYOUFUYAXIJINSHINEI,QILIUDADAODONGTAIPINGHENG,TONGSHIYEBAOZHENGSHIYANSHIQILIULIUXIANGWENDING,QIESHIZHONGCHUYUFUYAZHUANGTAI。YOUDIANSHIBUXUSHEBUFENGJI,JIESHENGCHUTOUZIHEYUNXINGFEIYONG;QUEDIANSHIXUYAODEJINFENGJINGHUOJINFENGBAIYEMIANJIDA,ZHANYONGJIANZHUSHIYONGMIANJIDAHUOYINGXIANGJIANZHULIMIANXIAOGUO,QICISHIBUFENGWUFAJINXINGJIAREHUOLENGQUECHULI。

彩宝贝 JIXIEBUFENGYUPAIFENGXITONGDUIYINGSHEZHIJIXIEBUFENGXITONG,JIANGSHIWAIXINFENGJINGJIZHONGCHULIHOU,YOUBUFENGJIJINGGUANDAOSONGRUFANGJIANNEI,CAIYONGDINGFENGLIANGHAISHIBIANFENGLIANGXITONG,YIBANYUPAIFENGXITONGDUIYING,JIPAIFENGWEIDINGFENGLIANGXITONG,BUFENGYEWEIDINGFENGLIANGXITONG,PAIFENGWEIBIANFENGLIANGXITONG,BUFENGYEWEIBIANFENGLIANGXITONG。

补风地点:

BUFENGKEZHIJIEBUZAIPAIFENGJUNEIHUOJUMENQIAN,YEKEBUZAIFANGJIANNEI,BUZAIPAIFENGJUNEIHUOJUMENQIANDEYOUDIANSHIBUFENGBUXUYAOZUOJIAREHUOLENGQUECHULI,KEJIESHENGNENGYUAN;QUEDIANSHICAOZUORENYUANGONGZUOHUANJINGSHUSHIXINGCHA,YOUSHIKENENGDUISHIYANSHUJUYOUYINGXIANG,BUZAIPAIFENGJUNEIFANGSHIBUSHIYONGYOUMIANFENGSUYAOQIUDEPAIFENGXITONG。BUZAIFANGJIANNEI,BUFENGYIBANXUJINGGUOJIAREHUOLENGQUECHULI,QIYOUDIANSHICAOZUORENYUANGONGZUOHUANJINGHAO,DUIPAIFENGJUMIANFENGSUJIJUNEIQILIUWUYINGXIANG;QUEDIANSHINENGLIANGXIAOHAOYAOBIZHIJIEBUZAIPAIFENGJUNEIHUOJUMENQIANDA。

3排风柜变风量控制器

MUQIANCHANGYONGDEFENGLIANGKONGZHIQIYOULIANGLEI:YILEISHICELIANGJUMENMIANFENGSU,TONGGUOYUSHEDINGFENGSUBIJIAO,DIAOJIEFENGFAKAIDUYIDADAOSHEDINGZHI,FENGFAYIBANCAIYONGDIEFA,QIYOUDIANSHI:①JINGDUBUSHOUJUQIANYOUWURENYUANZHEDANGYINGXIANG。②FAMENZULIXIAO。QUEDIANSHI:①JINGDUSHOUCELIANGDIANDEWEIZHIHESHULIANGYINGXIANG。②CELIANGDAODEFENGSUXUYAOTONGGUOCHUANGANQIZHUANHUANCHENGDIANXINHAODIAOJIEFENGFA,XITONGFANYINGSUDUSHAOMAN。LINGYILEISHITONGGUOCELIANGJUMENWEIZHI,DIAOJIEFENGFAKAIDU,FENGFAYIBANCAIYONGWENQIULIFA,QIYOUDIANSHI:TONGGUOCELIANGJUMENWEIZHIZHIJIEKONGZHIFENGFAKAIDU,XITONGFANYINGKUAI,XIANGYINGSHIJIANDUAN。QUEDIANSHI:①PAIFENGLIANGHUISHOUJUQIANYOUWURENYUANZHEDANGYINGXIANG。②FENGFAZULIJIAODA。

二、通风系统控制

1定风量、双风量系统控制

彩宝贝 DINGFENGLIANG、SHUANGFENGLIANGXITONGKONGZHIBIJIAOJIANDAN,ZAISHIYANSHINEISHEFENGJIQIDONGANNIU,GENJUXUYAOZHIJIEQITINGFENGJI。

2变风量系统控制

送排风机控制:

彩宝贝 FENGJICAIYONGBIANPINFENGJI,ZAIZHUFENGDAONEISHEYALICHUANGANQI,JIANGYALICHUANGANQICEDEDEYALIYUSHEDINGYALIZHIBIJIAO,YOUBIANPINQIDIAOJIEFENGJIZHUANSU,DADAODIAOJIEFENGLIANGDEMUDE。

排风末端设备控制:

ZAIPAIFENGJUDEPAIFENGZHIGUANSHANGSHEFENGLIANGKONGZHIFA,DANGMODUANTONGFENGSHEBEIFENGLIANGXUYAOFASHENGBIANHUASHI,FENGLIANGKONGZHIFAXUNSUDONGZUO,XIANGYINGSHIJIANYAOZAI1s ZHINEI。

实验室压力控制:

SHIYANSHIYALIKONGZHIZHUYAOYOULIANGZHONGFANGFA,ZHIJIEYACHAKONGZHIFAHEYUFENGLIANGKONGZHIFA。ZHIJIEYACHAKONGZHIFAJITONGGUOYACHACHUANGANQICELIANGSHINEIYUCANZHAOQUYUDEYACHA,YUSHEDINGYACHABIJIAO,KONGZHIQIGENJUPIANCHADIAOJIESONGFENGLIANG,CONGERDADAOYAOQIUDEYACHA,CIFASHIYONGYALIKONGZHIJINGDUBUGAODEFUYASHIYANSHI;YUFENGLIANGKONGZHIFA,SHIRANGPAIFENGLIANGYUSONGFENGLIANGZHIJIANBAOCHIYIDINGDEFENGLIANGCHA,SHISHINEIWAICHANSHENGYIDINGDEYACHA,CIFASHIYONGYUYALIKONGZHIJINGDUGAODESHIYANSHI(RUJIEJINGSHIYANSHI、SHENGWUANQUANSHIYANSHI)。

变风量通风系统控制原理:

彩宝贝 CHANGYONGDESHIYANSHIBIANFENGLIANGTONGFENGXITONGKONGZHIYUANLI。(JIANTU1)

通风柜面风速控制系统工作原理:

(1) MIANFENGSUKONGZHIXITONGCHIXUDIJIANCESHIJIMIANFENGSUZHUANGTAI,DANGRENHEYINSUYINGXIANGFENGSUBIANDONGSHI,XITONGJIANGZIDONGDIAOZHENGGUANDAOSHANGDEFENGFAYIHENGDINGDEMIANFENGSUZHI。

彩宝贝 (2)XITONGTONGGUOHONGWAIXIANJIANCEQISHIXIANDANGTONGFENGJUQIANYOUCAOZUORENYUANGONGZUOSHIMIANFENGSUKONGZHIZAIMOUYISHEDINGZHI(RU0.5m/s),DANGTONGFENGJUQIANWURENCAOZUOSHI,XITONGZIDONGZHUANHUANDAOLINGYISHEDINGZHI(RU0.3m/s)YIJIESHENGYUNXINGFEIYONG。

彩宝贝 (3)TONGFENGJUMENWEIGUOGAOSHIYOUSHENGYINBAOJING。

(4)YOUYUGUZHANGMIANFENGSUGUOGAOHUOGUODISHIYOUSHENGGUANGBAOJING。

(5)DANGCHUXIANYICHANGQINGKUANGSHI,KAIQISHIGUPAIFENGMOSHI,KONGZHIXITONGJIANGFENGFAKAIDAOZUIDAKAIDU,BUSHOUMIANFENGSUZHIDEKONGZHI。

彩宝贝 (6)TONGCHANGMIANFENGSUKONGZHIXITONGBENSHENDUIMIANFENGSUJIFENGLIANGDESHEDINGJIKONGZHIZHIZHIYOULIANGZHONGZHUANGTAIJIYOUREN、WURENHUOBAITIAN、YEJIAN。

管道静压控制系统原理:

(1)CHIXUJIANCEGUANDAONEIDEJINGYABIANHUA,TONGGUODIAOZHENGFENGJIZHUANSULAIHENGDINGGUANDAONEIJINGYA。

(2)KONGZHIXITONGZAI0.1s NEITANCEDAOYACHABIANHUABINGSHUCHUKONGZHIXINHAO。

(3)YEJIANGONGKUANGSHI,KONGZHIXITONGYOUDIERZHUANGTAISHEZHI。

三、能量回收

SHIYANSHIGONGZUOGUOCHENGZHONG,ZAIPAICHUDALIANGYOUHAIQITIDETONGSHI,YEDAIZOULEDALIANGDESHINEINENGLIANG,WEIJIANSHAOZHEIBUFENNENGLIANGSUNSHI,ZAITONGFENGXITONGSHEJISHI,YAOKAOLVPAIFENGNENGLIANGHUISHOU,MUQIANCHANGYONGDEHUISHOUFANGSHIYOU:

彩宝贝 1、CAIYONGZHONGJIANJIEZHIJINXINGNENGLIANGHUISHOU,ZAIPAIFENGJIZUNEISHEPANGUANYUREHUISHOUDUAN,ZAISONGFENGJIZUNEISHEPANGUANXINFENGYUREDUAN,ERDUANZHIJIANTONGGUOGUANLU、SHUIBENGXINGCHENGYIGEXUNHUANXITONG,TONGGUOZHONGJIANJIEZHI(SHUIHUOYIERCHUN)JIANGPAIFENGZHONGDENENGLIANGZHUANYIDAOSONGFENGZHONG,GAIXITONGSUIRANHUISHOUXIAOLVBUSHIHENGAO(XIANREXIAOLVZAI60%YIXIA),DANFEICHANGANQUAN,BUCUNZAIPAIFENGWURANXINFENGWENTI。

彩宝贝 2、CAIYONGBANSHIKONGQIHUANREQI,PAIFENGYUXINFENGZAIBANHUANNEIWANCHENGNENGLIANGJIAOHUAN,XITONGBIJIAOJIANDAN,DANSHEBEICHICUNJIAODA,ZHANYONGJIFANGMIANJIDA。

四、尾气排放及排风处理

彩宝贝 YOUXIESHIYANSHEBEIZAIGONGZUOGUOCHENGZHONG,YAOCHANSHENGWEIQI,QISHEBEIBENSHENDAIYOUPAIQIZHUANGZHI,ZAITONGFENGSHEJISHI,YINGGENJUGONGYIYAOQIU,ZAIFANGJIANSHIDANGWEIZHISHEYIZHITONGSHIWAIDESHUXIANGWEIQIPAIFANGGUAN。GUANCAIYIBANXUANYONGSULIAOGUAN,ZAIPAIQILIGUANSHIDANGGAODUSHEKEYUPAIQIZHUANGZHILIANJIEDEJIEKOUJIFAMEN。

LINGWAI,SHIYANSHIYOUXIEPAIFENGXUJINGGUOCHULIHOU,CAINENGPAIXIANGDAQI,ZAIPAIFENGXITONGHUAFENSHI,YAOJIANGBUNENGZHIJIEPAIFANGDESHIYANSHIPAIFENGJIZHONGZAIYIGEXITONG,YIBIANYUJIZHONGCHULI。CAIYONGHEZHONGCHULIFANGSHI,YINGGENJUPAIQIXINGZHIJUEDING,YIBANCHANGYONGDEFANGFASHICAIYONGHUOXINGTANXIFUFA。

五、设计中要注意的问题

1、ZAIHUAFENTONGFENGXITONGSHI,YAOJIANGSHIYANXINGZHIXIANGTONGHUOXIANGJINDEPAIFENGSHEZAIYIGEXITONG,DUIHUNHEHOUKENENGYINQIRANSHAO、BAOZHAHUOXINGCHENGDUXINGGENGQIANGDEYOUHAIWUZHIDEPAIFENGYAOFENSHEPAIFENGXITONG。

2、PAIFENGBUYUNXUZHIJIEPAIFANG,XUJINGCHULIHOUCAINENGPAIXIANGDAQIDESHIYANSHIYAOJINLIANGSHEZAIYIGEPAIFENGXITONGNEI。

彩宝贝 3、YAOZHUYIGEMODUANPAIFENGSHEBEIJIANDEZULIPINGHENG,RUJUBUPAIFENGZHAOZULIYUANXIAOYUPAIFENGJUJIKONGZHIFADEZULI,ZHEISHIYAOZAIJUBUPAIQIZHAODEZHIGUANSHANGSHEDINGFENGLIANGFA。

4、WANXIANGPAIQIZHAOZULIJIAODA(YIBANZAI200Pa YISHANG),ZAIHEQITAMODUANBINGLIANSHI,YAOTEBIEZHUYI,ZAIXITONGYALIBUNENGMANZUYAOQIUSHI,KEZAIQIZHIGUANSHANGSHEXIAOXINGGUANDAOFENGJI,YIMANZUQIYALIYAOQIU。

彩宝贝 5、SHENGWUANQUANJUYAODANPAI。

6、DANGSHIYANSHIPAIFENGLIANGJIAODASHI,YAOZAIZOULANG、DATINGDENGGONGGONGQUYUSHEBUFENG,YIBIMIANFUYAGUODA,ZAOCHENGKAIMENHUOGUANMENKUNNAN。

7、XUANZENENGLIANGHUISHOUFANGSHISHI,YAOZHUYIFANGZHIPAIFENGWURANXINFENGWENTI。

六、结语

实验室多种多样,其通风系统的设计也应该灵活多样,在一个实验楼内可能存在多种通风方式并存,通风系统设计的原则是在保证人员健康安全的前提下,应尽量减少通风量,这即可减少投资,又可节省运行费用。随着实验室建设标准的不断提高,变风量通风系统应用越来越广,对通风设计也提出了更高的要求,因此在进行实验室通风设计时,要多倾听使用人员及其他相关方面人士的意见,设计要有针对性,做到有的放矢。