Ndi mitundu yanji ya ma open channel flow meters omwe timapereka?

1. UOL lotseguka tchanelo mita ya flume zosiyanasiyana ndi weir

Meta iyi imatha kuyeza mwachindunji ndi kuchuluka kwa zakumwa.Ikagwiritsidwa ntchito muyeso yoyenda panjira yotseguka, imafunika kukhazikitsa flume ndi weir.The weir akhoza kusintha otaya mu mlingo wa madzi mlingo lotseguka channel.The mita kuyeza mlingo madzi mu madzi weir poyambira, ndiyeno kuwerengetsera otaya mlingo malinga ndi madzi otaya ubale wa lolingana madzi weir poyambira mu microprocessor. mkati mwa mita.Mitsempha yayikulu kwambiri ndi Bacher grooves, weir triangular ndi weir wamakona anayi.Pamene kuyeza madzi mlingo, akupanga echo luso anatengera, ndi mlingo n'zotsimikizira anakonza pamwamba pa madzi mlingo kuonerera mfundo ya weir.The transmitter ndege ya mlingo gauge imayendetsedwa molunjika ndi pamwamba pa madzi.Pansi pa ulamuliro wa microcomputer, ndi akupanga mlingo mita transmits ndi amalandira akupanga mafunde.Malingana ndi Hb = CT/2 (C ndi liwiro la phokoso la ultrasonic wave mu mlengalenga, T ndi nthawi ya ultrasonic wave mu mlengalenga), mtunda wa Hb pakati pa akupanga mlingo wa mita ndi mlingo wamadzimadzi umawerengedwa, kotero kuti kupeza madzi mlingo msinkhu Ha.Pomaliza, kutuluka kwamadzimadzi kumapezeka molingana ndi njira yowerengera.Chifukwa cha miyeso yosalumikizana, imatha kugwiritsidwa ntchito m'malo ovuta.Open channel flow mita ndi yoyenera posungira, mitsinje, ntchito zosungira madzi, njira zosinthira madzi akutawuni, makina otenthetsera magetsi othamangitsira mitsinje, kuthira zinyalala kulowa ndi kukhetsera, malo ogwirira ntchito otayira madzi onyansa ndi ntchito zosungira madzi ndi ulimi wothirira. njira.

2. DOF6000 siriyo Area liwiro lotseguka njira flowmeter panjira kapena chitoliro chodzazidwa pang'ono

Dera liwiro otaya mita integrates otaya liwiro ndi madzi mlingo muyeso, izo utenga akupanga Doppler mfundo otaya mlingo muyeso.Poyeza mlingo wamadzimadzi, sensa imayikidwa pansi kapena pafupi ndi madzi.Kupyolera mu hydrostatic pressure sensor, chingwe cholumikizira mphamvu chimakhala ndi ntchito ya mpweya wabwino.Kuthamanga kwa mumlengalenga pamtunda wamadzi kumagwiritsidwa ntchito ngati kukakamiza kwa hydrostatic pressure sensor kuti muyese kuthamanga kwamadzimadzi, kuti muwerenge kutalika kwa mlingo wamadzimadzi.Dera-liwiro akupanga flowmeter ndi oyenera kuyeza lotseguka ngalande kapena sanali zonse mipope ndi diameters wamkulu kuposa 300mm potulutsa zimbudzi ndi zinyalala madzi, oyera mitsinje, kumwa madzi ndi nyanja madzi.