Kodi zifukwa akupanga otaya mita ndi zoipa muyeso chifukwa?

1. Chikoka cha kumtunda ndi kumtunda molunjika chitoliro gawo pa muyeso kulondola kwa akupanga flowmeter.Calibration coefficient K ndi ntchito ya nambala ya Reynolds.Kuthamanga kwa kuthamanga kukakhala kosiyana kuchokera pakuyenda kwa laminar kupita kukuyenda kwa chipwirikiti, ma calibration coefficient K asintha kwambiri, zomwe zimapangitsa kuchepa kwa kuyeza kolondola.Malinga ndi zofunikira za ntchito, ndi akupanga otaya mita transducer ayenera kuikidwa mu kumtunda molunjika chitoliro chigawo cha 10D, kumtunda molunjika chitoliro gawo la 5D udindo, kwa kumtunda pamaso pa mapampu, mavavu ndi zipangizo zina pamene kutalika kwa molunjika. gawo la chitoliro, zofunikira za "kutalika kwa chipwirikiti, kugwedezeka, gwero la kutentha, gwero la phokoso ndi gwero la ray momwe ndingathere".Ngati pali mapampu, mavavu ndi zida zina kumtunda kwa unsembe udindo wa akupanga otaya mita transducer, molunjika chitoliro chigawo chofunika kukhala oposa 30D.Choncho, kutalika kwa gawo la chitoliro chowongoka ndicho chinthu chachikulu chotsimikizira kulondola kwa muyeso.

2. Chikoka cha payipi chizindikiro zida pa muyeso kulondola kwa akupanga flowmeter.Kulondola kwa makhazikitsidwe a mapaipi kumagwirizana kwambiri ndi kuyeza kwake.Ngati kuyika kwa zinthu ndi kukula kwa payipi sikukugwirizana ndi zenizeni, kungayambitse cholakwika pakati pa gawo lachiwongolero chapaipi ndi gawo lomwe limatuluka, zomwe zimapangitsa kuti pakhale zotsatira zolakwika.Komanso, umuna katayanitsidwe pakati pa akupanga otaya mita transducer ndi chifukwa cha mabuku mawerengedwe osiyanasiyana magawo monga madzimadzi (kuthamanga phokoso, mphamvu mamasukidwe akayendedwe), payipi (zinthu ndi kukula), ndi unsembe njira ya transducer, etc., ndi unsembe mtunda wa transducer apatuka, zomwe zidzachititsanso zolakwa zazikulu muyeso.Pakati pawo, kuyika ndi kuyika mtunda wa kapinga wamkati wa payipi kumakhudza kwambiri kulondola kwa kuyeza kwake.Malingana ndi deta yoyenera, ngati cholakwika cha longitude chamkati cha payipi ndi ± 1%, chidzachititsa za ± 3% zolakwika zotuluka;Ngati cholakwika cha mtunda woyika ndi ± 1mm, cholakwika chakuyenda chidzakhala mkati mwa ± 1%.Zitha kuwoneka kuti pokhapokha ndi malo olondola a mapaipi omwe amatha kuyika akupanga flowmeter molondola ndipo chikoka cha mapaipi pamiyeso yolondola chingachepe.

3, chikoka cha akupanga otaya mita transducer unsembe udindo pa muyeso kulondola.Pali njira ziwiri kukhazikitsa transducer: kusinkhasinkha mtundu ndi mwachindunji mtundu.Ngati kugwiritsa ntchito liwiro lokwera molunjika kuli kochepa, mphamvu ya siginecha imatha kukulitsidwa.

4. Chikoka cha coupling agent pa kuyeza kulondola.Kuti zitsimikizire kukhudzana kwathunthu ndi payipi, pakuyika transducer, wosanjikiza wolumikizira uyenera kuphimbidwa mofanana pamwamba pa payipi, ndipo makulidwe ake ndi (2mm - 3mm).The thovu ndi granules mu coupler amachotsedwa kuti emitter pamwamba pa transducer mwamphamvu Ufumuyo chubu khoma.Ma Flowmeters oyezera madzi oyendayenda amayikidwa kwambiri ku Wells, ndipo chilengedwe chimakhala chachinyontho ndipo nthawi zina chimasefukira.Ngati cholumikizira chachikulu chikugwiritsidwa ntchito, chidzalephera mu nthawi yochepa, zomwe zimakhudza kulondola kwa muyeso.Chifukwa chake, cholumikizira chapadera chopanda madzi chiyenera kusankhidwa, ndipo chophatikizacho chiyenera kugwiritsidwa ntchito mkati mwa nthawi yogwira, nthawi zambiri miyezi 18.Kuti mutsimikizire kulondola kwake, cholumikizira chiyenera kuikidwanso pakatha miyezi 18 iliyonse ndipo cholumikizira chiyenera kusinthidwa.