孔板流量計是將標準孔板與多參數差壓變送器(或差壓變送器、溫度變送器及壓力變送器)配套組成的高量程比差壓流量裝置,測量氣體、蒸汽、液ye體ti及ji引yin的de流liu量liang。孔kong板ban流liu量liang計ji就jiu是shi流liu體ti經jing過guo管guan道dao上shang孔kong板ban節jie流liu裝zhuang置zhi時shi,會hui在zai其qi前qian後hou形xing成cheng差cha壓ya,差cha壓ya的de大da小xiao與yu流liu體ti流liu過guo的de流liu量liang有you關guan,按an此ci原yuan理li測ce量liang出chu差cha壓ya後hou通tong過guo流liu量liang積ji算suan儀yi可ke以yi顯xian示shi出chu流liu量liang。
孔板氣體流量計實際運用過程中,如空氣、煤氣、蒸zheng汽qi的de計ji量liang,因yin測ce量liang介jie質zhi中zhong有you水shui蒸zheng汽qi,當dang溫wen度du降jiang低di或huo壓ya力li上shang升sheng時shi都dou會hui使shi其qi中zhong的de水shui蒸zheng氣qi結jie成cheng水shui,且qie常chang常chang彙hui集ji在zai計ji量liang孔kong板ban前qian,造zao成cheng計ji量liang誤wu差cha。因yin此ci,有you必bi要yao分fen析xi孔kong板ban前qian積ji水shui對dui測ce量liang結jie果guo影ying響xiang的de程cheng度du,對dui其qi及ji時shi處chu理li。
孔板氣體流量計的處理措施:
1、及(ji)時(shi)排(pai)放(fang)管(guan)道(dao)中(zhong)的(de)凝(ning)結(jie)水(shui)。安(an)裝(zhuang)排(pai)水(shui)裝(zhuang)置(zhi)是(shi)避(bi)免(mian)積(ji)水(shui)堵(du)塞(sai)管(guan)道(dao)的(de)主(zhu)要(yao)措(cuo)施(shi),一(yi)方(fang)麵(mian)要(yao)合(he)理(li)設(she)計(ji)管(guan)道(dao)坡(po)度(du)及(ji)排(pai)水(shui)裝(zhuang)置(zhi)的(de)分(fen)布(bu),定(ding)期(qi)維(wei)護(hu)檢(jian)查(zha),差(cha)壓(ya)變(bian)送(song)器(qi)避(bi)免(mian)大(da)量(liang)水(shui)聚(ju)集(ji)堵(du)管(guan)。凝(ning)結(jie)水(shui)的(de)及(ji)時(shi)排(pai)出(chu)也(ye)降(jiang)低(di)了(le)管(guan)道(dao)濕(shi)度(du),減(jian)緩(huan)凝(ning)結(jie)水(shui)和(he)其(qi)它(ta)雜(za)質(zhi)對(dui)管(guan)道(dao)的(de)腐(fu)蝕(shi),從(cong)而(er)提(ti)高(gao)計(ji)量(liang)數(shu)據(ju)的(de)準(zhun)確(que)性(xing)。
2、解jie決jue節jie流liu件jian前qian積ji水shui最zui簡jian單dan的de方fang法fa是shi節jie流liu件jian的de下xia部bu開kai疏shu液ye孔kong。將jiang節jie流liu裝zhuang置zhi安an裝zhuang在zai垂chui直zhi工gong藝yi管guan上shang,或huo改gai用yong圓yuan缺que孔kong板ban或huo偏pian心xin孔kong板ban。其qi中zhong,偏pian心xin孔kong板ban不bu確que定ding度du較jiao小xiao,優you於yu圓yuan缺que孔kong板ban。
從cong上shang述shu中zhong孔kong板ban流liu量liang計ji在zai使shi用yong過guo程cheng中zhong如ru果guo可ke以yi管guan道dao中zhong有you積ji水shui,會hui影ying響xiang測ce量liang的de結jie果guo,有you測ce量liang誤wu差cha,說shuo以yi要yao避bi免mian這zhe種zhong措cuo施shi,一yi定ding要yao找zhao到dao解jie決jue的de方fang法fa。
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