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云南風管廠家的通風管道風壓、風速、風量測定方法

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云南風管廠家的通風管道風壓、風速、風量測定方法

發布日期:2019-05-22 作者: 點擊:

DEFENGYA、FENGSU、FENGLIANGCEDINGFANGFA

YI、CEDINGWEIZHIHECEDINGDIAN

(YI)CEDINGWEIZHIDEXUANZE

TONGFENGGUANDAONEIFENGSUJIFENGLIANGDECEDING,SHITONGGUOCELIANGYALIHUANSUANDEDAO。CEDEGUANDAOZHONGQITIDEZHENSHIYALIZHI,CHULEZHENGQUESHIYONGCEYAYIQIWAI,HELIXUANZECELIANGDUANMIAN、JIANSHAOQILIURAODONGDUICELIANGJIEGUODEYINGXIANGHENDA。CELIANGDUANMIANYINGJINLIANGXUANZEZAIQILIUPINGWENDEZHIGUANDUANSHANG。TONGFENGSHEBEICELIANGDUANMIANSHEZAIWANTOU、SANTONGDENGYIXINGBUJIANQIANMIAN(XIANGDUIQILIULIUDONGFANGXIANG)SHI,JUZHEXIEBUJIANDEJULIYINGDAYU2BEIGUANDAOZHIJING。DANGCELIANGDUANMIANSHEZAISHANGSHUBUJIANHOUMIANSHI,JUZHEXIEBUJIANDEJULIYINGDAYU4~5BEIGUANDAOZHIJING。DANGCESHIXIANCHANGNANYUMANZUYAOQIUSHI,WEIJIANSHAOWUCHAKESHIDANGZENGJIACEDIAN。DANSHI,CELIANGDUANMIANWEIZHIJUYIXINGBUJIANDEZUIXIAOJULIZHISHAOSHIGUANDAOZHIJINGDE1.5BEI。

CEDINGDONGYASHIRUFAXIANRENHEYIGECEDIANCHUXIANLINGZHIHUOFUZHI,BIAOMINGQILIUBUWENDING,GAIDUANMIANBUYIZUOWEICEDINGDUANMIAN。RUGUOQILIUFANGXIANGPIANCHUFENGGUANZHONGXINXIAN15°YISHANG,GAIDUANMIANYEBUYIZUOCELIANGDUANMIAN(JIANCHAFANGFA:BITUOGUANDUANBUZHENGDUIQILIUFANGXIANG,MANMANBAIDONGBITUOGUAN,SHIDONGYAZHIZUIDA,ZHESHIBITUOGUANYUFENGGUANWAIBICHUIXIANDEJIAJIAOJIWEIQILIUFANGXIANGYUFENGGUANZHONGXINXIANDEPIANLIJIAO)。

XUANZECELIANGDUANMIAN,HUANYINGKAOLVCEDINGCAOZUODEFANGBIANHEANQUAN。

(ER)CESHIKONGHECEDINGDIAN

OPE电竞YOUYUSUDUFENBUDEBUJUNYUNXING,YALIFENBUYESHIBUJUNYUNDE。YINCI,BIXUZAITONGYIDUANMIANSHANGDUODIANCELIANG,RANHOUQIUCHUGAIDUANMIANDEPINGJUNZHI。

1YUANXINGFENGDAO

OPE电竞ZAITONGYIDUANMIANSHEZHILIANGGEBICICHUIZHIDECEKONG,BINGJIANGGUANDAODUANMIANFENCHENGYIDINGSHULIANGDEDENGMIANJITONGXINHUAN,DUIYUYUANXINGFENGDAO,CEDIANYUEDUO,CELIANGJINGDUYUEGAO。

2JUXINGFENGDAO

OPE电竞KEJIANGFENGDAODUANMIANHUAFENWEIRUOGANDENGMIANJIDEXIAOJUXING,CEDIANBUZHIZAIMEIGEXIAOJUXINGDEZHONGXIN,XIAOJUXINGMEIBIANDECHANGDUWEI200mmZUOYOU,YUANFENGGUANCEDIANYUGUANBIJULIXISHU(YIGUANJINGWEIJISHU)。

ER、FENGDAONEIYALIDECEDING

(YI)YUANLI

OPE电竞CELIANGFENGDAOZHONGQITIDEYALIYINGZAIQILIUBIJIAOPINGWENDEGUANDUANJINXING。CESHIZHONGXUCEDINGQITIDEJINGYA、DONGYAHEQUANYA。CEQITIQUANYADEKONGKOUYINGYINGZHUFENGDAOZHONGQILIUDEFANGXIANG,CEJINGYADEKONGKOUYINGCHUIZHIYUQILIUDEFANGXIANG。YONGUXINGYALIJICEQUANYAHEJINGYASHI,YUNNANFENGGUANCHANGJIAGAOSUNINLINGYIDUANYINGYUDAQIXIANGTONG(YONGQINGXIEWEIYAJIZAIZHENGYAGUANDUANCEYASHI,GUANDEYIDUANYINGYUDAQIXIANGTONG,ZAIFUYAGUANDUANCEYASHI,RONGQIKAIKOUDUANYINGYUDAQIXIANGTONG)。YINCIYALIJISHANGDUCHUDEYALI,SHIJISHANGSHIFENGDAONEIQITIYALIYUDAQIYALIZHIJIANDEYACHA(JIQITIXIANGDUIYALI)。DAQIYALIYIBANYONGDAQIYALIBIAOCEDING。YOUYUQUANYADENGYUDONGYAYUJINGYADEDAISHUHE,KEZHICEQIZHONGLIANGGEZHI,LINGYIZHITONGGUOJISUANQIUDE。

(ER)CEDINGYIQI

QITIYALI(JINGYA、DONGYAHEQUANYA)DECELIANGTONGCHANGSHIYONGCHARUFENGDAOZHONGDECEYAGUANJIANGYALIXINHAOQUCHU,ZAIYUZHILIANJIEDEYALIJISHANGDUCHU,CHANGYONGDEYIQIYOUBITUOGUANHEYALIJI。

1 BITUOGUAN

(1)BIAOZHUNBITUOGUAN

TASHIYIGEWANCHENG90°DESHUANGCENGTONGXINYUANGUAN,QIKAIKOUDUANTONGNEIGUANXIANGTONG,YONGLAICEDINGQUANYA;ZAIKAOJINGUANTOUDEWAIBISHANGKAIYOUYIQUANXIAOKONG,YONGLAICEDINGJINGYA,ANBIAOZHUNCHICUNJIAGONGDEBITUOGUANXIAOZHENGXISHUJINSIDENGYU1。BIAOZHUNBITUOGUANCEKONGHENXIAO,YIBEIFENGDAONEIFENCHENDUSAI,YINCIZHEZHONGBITUOGUANZHISHIYONGYUBIJIAOQINGJIEDEGUANDAOZHONGCEDING。

(2)SXINGBITUOGUAN

OPE电竞TASHIYOULIANGGENXIANGTONGDEJINSHUGUANBINGLIANZUCHENG,CELIANGSHIYOUFANGXIANGXIANGFANDELIANGGEKAIKOU,CEDINGSHI,MIANXIANGQILIUDEKAIKOUCEDEDEXIANGDANGYUQUANYA,BEIXIANGQILIUDEKAIKOUCEDEDEXIANGDANGYUJINGYA。YOUYUCETOUDUIQILIUDEYINGXIANG,CEDEDEYALIYUSHIJIZHIYOUJIAODAWUCHA,TEBIESHIJINGYA。YINCI,SXINGBITUOGUANZAISHIYONGQIANXUYONGBIAOZHUNBITUOGUANJINXINGXIAOZHENG,SXINGBITUOGUANDEDONGYAXIAOZHENGXISHUYIBANZAI0.82~0.85ZHIJIAN。SXINGBITUOGUANCEKONGJIAODA,BUYIBEIFENGDAONEIFENCHENDUSAI,ZHEZHONGBITUOGUANZAIHANCHENWURANYUANJIANCEZHONGDEDAOGUANGFANYINGYONG。

2.YALIJI

(1)UXINGYALIJI

OPE电竞YOUUXINGBOLIGUANZHICHENG,QIZHONGCEYAYETISHIBEICEYALIFANWEIXUANYONGSHUI、JIUJINGHUOGONG,UXINGYALIJIBUSHIYUCELIANGWEIXIAOYALI。YALIZHIYOUYEZHUGAOCHADUDEHUANSUAN,pZHIANXIASHIJISUAN:

p=ρgh (Pa) (2.8-1)

SHIZHONGp—YALI,Pa;

h—YEZHUCHA,mm;

ρ—YETIMIDU,g/cm3;

g—ZHONGLIJIASUDU,m/s2。

(2)QINGXIESHIWEIYAJI

OPE电竞CEYASHI,JIANGWEIYAJIRONGQIKAIKOUYUCEDINGXITONGZHONGYALIJIAOGAODEYIDUANXIANGLIAN,XIEGUANYUXITONGZHONGYALIJIAODIDEYIDUANXIANGLIAN,ZUOYONGYULIANGGEYEMIANSHANGDEYALICHA,SHIYEZHUYANXIEGUANSHANGSHENG,YALIpANXIASHIJISUAN:

p=K·L(Pa)(2.8-2)

SHIZHONGL—XIEGUANNEIYEZHUCHANGDU,mm;

K—XIEGUANXISHU,YOUYIQIXIEJIAOKEDUDUDE。

CEYAYETIMIDU,CHANGYONGMIDUWEI0.1g/cm3DEYICHUN。DANGCAIYONGQITAMIDUDEYETISHI,XUJINXINGMIDUXIUZHENG。

(SAN)CEDINGFANGFA

1.SHIQIAN,JIANGYIQIDIAOZHENGSHUIPING,JIANCHAYEZHUYOUWUQIPAO,BINGJIANGYEMIANDIAOZHILINGDIAN,RANHOUGENJUCEDINGNEIRONGYONGXIANGPIGUANJIANGCEYAGUANYUYALIJILIANJIE。BITUOGUANYUUXINGYALIJICELIANGYANQIQUANYA、JINGYA、DONGYADELIANJIEFANGFA。

2CEYASHI,BITUOGUANDEGUANZUIYAODUIZHUNQILIULIUDONGFANGXIANG,QIPIANCHABUDAYU5°,MEICICEDINGFANFUSANCI,QUPINGJUNZHI。

SAN、GUANDAONEIFENGSUCEDING

CHANGYONGDECEDINGGUANDAONEIFENGSUDEFANGFAFENWEIJIANJIESHIHEZHIDUSHILIANGLEI。

(YI)JIANJIESHI

XIANCEDEGUANNEIMOUDIANDONGYApd,KEYIJISUANCHUGAIDIANDELIUSUv。YONGGEDIANCEDEDEDONGYAQUJUNFANGGEN,KEYIJISUANCHUGAIJIEMIANDEPINGJUNLIUSUvp。

SHIZHONGpd—DONGYAZHI,pdiDUANMIANSHANGGECEDIANDONGYAZHI,Pa;

OPE电竞vp—PINGJUNLIUSUSHIDUANMIANSHANGGECEDIANLIUSUDEPINGJUNZHI。

CIFASUIJIAOFANSUO,YOUYUJINGDUGAO,ZAITONGFENGXITONGCESHIZHONGDEDAOGUANGFANYINGYONG。

(ER)ZHIDUSHI

YUNNANFENGGUANCHANGJIAGAOSUNINCHANGYONGDEZHIDUSHICESUYISHIREQIUSHIREDIANFENGSUYI,ZHEZHONGYIQIDECHUANGANQISHIYIQIUXINGCETOU,QIZHONGWEINIEGESIDANHUANGQUAN,YONGDIRONGDIANDEBOLIJIANGQIBAOCHENGQIUZHUANG。DANHUANGQUANNEIYOUYIDUINIEGE—KANGTONGREDIANOU,YONGYICELIANGQIUTIDEWENSHENGCHENGDU。CETOUYONGDIANJIARE。YOUYUCETOUDEJIARELIANGJIZHONGZAIQIUBU,ZHIXUJIAOXIAODEJIAREDIANLIU(YUE30mA)JIUNENGDADAOYAOQIUDEWENSHENG。CETOUDEWENSHENGHUISHOUDAOZHOUWEIKONGQILIUSUDEYINGXIANG,GENJUWENSHENGDEDAXIAO,JIKECECHUQILIUDESUDU。

OPE电竞YIQIDECELIANGBUFENCAIYONGDIANZIFANGDAXIANLUHEYUNSUANFANGDAQI,BINGYONGSHUZIXIANSHICELIANGJIEGUO。CELIANGDEFANWEIWEI0.05~19.0m/s(BIYAOSHIKEKUODAZHI40m/s)。

OPE电竞YIQIZHONGHUANSHEYOUP-NJIEWENDUCETOU,KEYIZAICELIANGFENGSUDETONGSHI,CEDINGQILIUDEWENDU。ZHEZHONGYIQISHIYONGYUQILIUWENDINGSHUSONGQINGJIEKONGQI,LIUSUXIAOYU4m/sDECHANGHE。

SI、FENGDAONEILIULIANGDEJISUAN

OPE电竞PINGJUNFENGSUQUEDINGYIHOU,KEANXIASHIJISUANGUANDAONEIDEFENGLIANG

OPE电竞L=vp·F (m3/s) (2.8-5)

SHIZHONGF—GUANDAODUANMIANJI,m2。

QITIZAIGUANDAONEIDELIUSU、LIULIANGYUDAQIYALI、QILIUWENDUYOUGUAN。DANGGUANDAONEISHUSONGQITIBUSHICHANGWENSHI,YINGTONGSHIGEICHUQILIUWENDUHEDAQIYALI。

WU、JUBUPAIFENGZHAOKOUFENGSUFENGLIANGDECEDING

(YI)ZHAOKOUFENGSUCEDING

OPE电竞ZHAOKOUFENGSUCEDINGYIBANYONGYUNSUYIDONGFA、DINGDIANCEDINGFA。

1 YUNSUYIDONGFA

OPE电竞(1)CEDINGYIQI:XIELUNSHIFENGSUYI。

(2)CEDINGFANGFA:DUIYUZHAOKOUMIANJIXIAOYU0.3m2DEPAIFENGZHAOKOU,KEJIANGFENGSUYIYANZHENGGEZHAOKOUDUANMIANLUXIANMANMANDIYUNSUYIDONG,YIDONGSHIFENGSUYIBUDELIKAICEDINGPINGMIAN,CISHICEDEDEJIEGUOSHIZHAOKOUPINGJUNFENGSU。CIFAJINXINGSANCI,QUQIPINGJUNZHI。

2DINGDIANCEDINGFA

(1)CEDINGYIQI:BIAODINGYOUXIAOQINEIDEREQIUSHIREDIANFENGSUYI。

OPE电竞(2)CEDINGFANGFA:DUIYUJUXINGPAIFENGZHAO,ANZHAOKOUDUANMIANDEDAXIAO,BATAFENCHENGRUOGANGEMIANJIXIANGDENGDEXIAOKUAI,ZAIMEIGEXIAOKUAIDEZHONGXINCHUCELIANGQIQILIUSUDU。DUANMIANJIDAYU0.3m2DEZHAOKOU,KEFENCHENG9~12GEXIAOKUAICELIANG,MEIGEXIAOKUAIDEMIANJI<0.06m2,JIANTU2.8-11(a);DUANMIANJI≤0.3m2DEZHAOKOU,KEQU6GECEDIANCELIANG,DUIYUTIAOFENGXINGPAIFENGZHAO,ZAIQIGAODUFANGXIANGZHISHAOYINGYOULIANGGECEDIAN,YANTIAOFENGCHANGDUFANGXIANGGENJUQICHANGDUKEYIFENBIEQURUOGANGECEDIAN,CEDIANJIANJU≤200mm,PAIFENGZHAOZHAOKOUPINGJUNFENGSUANSUANSHUPINGJUNZHIJISUAN。

(ER)FENGLIANGCEDING

1DONGYAFACELIANGPAIFENGZHAODEFENGLIANG

OPE电竞ANSHI(2.8-4)JISUANCHUDUANMIANSHANGGECEDIANLIUSUDEPINGJUNZHIvp,ZEPAIFENGZHAODEPAIFENGLIANGWEI:

OPE电竞L=vp·F (m3/s) (2.8-6)

OPE电竞SHIZHONGvp—PINGJUNFENGSU,m/s;

F—GUANDAODUANMIANJI,m2。

OPE电竞JINGYAFACELIANGPAIFENGZHAODEFENGLIANG

ZAIXIANCHANGCEDINGSHI,GEGUANJIANZHIJIANDEJULIHENDUAN,BUYIZHAODAOBIJIAOWENDINGDECEDINGDUANMIAN,YONGDONGYAFACELIANGLIULIANGYOUYIDINGKUNNAN。ZAIZHEZHONGQINGKUANGXIA,TONGGUOCELIANGJINGYAQIUDEPAIFENGZHAODEFENGLIANG。JUBUPAIFENGZHAOYALISUNSHI:

OPE电竞SHIZHONGpog—ZHAOKOUDUANMIANDEQUANYA,Pa;

OPE电竞poq—1—1DUANMIANDEQUANYA,Pa;

p`j—1—1DUANMIANDEJINGYA,Pa;

poq—1—1DUANMIANDEDONGYA,Pa;

OPE电竞ζ—JUBUPAIFENGZHAODEJUBUZULIXISHU;

v1—DUANMIAN1—1DEPINGJUNLIUSU,m/s;

ρ1—KONGQIDEMIDU,kg/m3。

TONGGUOGONGSHIKEYIKANCHU,ZHIYAOYIZHIPAIFENGZHAODELIULIANGXISHUJIGUANKOUCHUDEJINGYA,JIKECECHUPAIFENGZHAODELIULIANG。

OPE电竞GEZHONGPAIFENGZHAODELIULIANGXISHUKEYONGSHIYANFANGFAQIUDE,CONGGONGSHI(2.8-8)KEYIKANCHU:

μZHIKEYICONGYOUGUANZILIAOCHADE。YOUYUSHIJIDEPAIFENGZHAOHEZILIAOSHANGGEICHUDEBUKENENGWANQUANXIANGTONG,ANZILIAOSHANGDEμZHIJISUANPAIFENGLIANGHUIYOUYIDINGDEWUCHA。

ZAIYIGEYOUDUOGEPAIFENGDIANDEPAIFENGXITONGZHONG,KEXIANCECHUPAIFENGZHAODEμZHI,RANHOUANGONGSHI(2.8-10)SUANCHUGEPAIFENGZHAOYAOQIUDEJINGYA,TONGGUODIAOZHENGJINGYADIAOZHENGGEPAIFENGZHAODEPAIFENGLIANG,GONGZUOLIANGKEYIDADAJIANXIAO。SHANGSHUYUANLIYESHIYONGYUSONGFENGXITONGFENGLIANGDEDIAOJIE。RUJUNYUNSONGFENGGUANSHANGYAOBAOCHIGEKONGKOUDESONGFENGLIANGXIANGDENG,ZHIXUDIAOZHENGCHUKOUCHUDEJINGYA,SHIQIBAOCHIXIANGDENG。


云南風管廠家


OPE电竞(BENWENNEIRONGLAIYUANYUWANGLUO,RUYOUQINQUANQINGLIANXISHANCHU)

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