Igipimo cyo gutembera nikintu gikunze kugenzurwa mugikorwa cyo gutunganya inganda.Kugeza ubu, ku isoko hari metero zirenga 100 zitandukanye ku isoko.Nigute abakoresha bagomba guhitamo ibicuruzwa bifite imikorere ihanitse nigiciro?Uyu munsi, tuzajyana abantu bose gusobanukirwa imikorere ya metero zitemba.
Kugereranya Ibipimo Bitandukanye Bitemba
Ubwoko bwumuvuduko utandukanye
Ikoreshwa rya tekinoroji itandukanye yo gupima nuburyo bukoreshwa cyane muburyo bwo gupima imigezi, ishobora gupima hafi itembera ryamazi yicyiciro kimwe na fluide munsi yubushyuhe bwinshi hamwe numuvuduko mwinshi mubihe bitandukanye byakazi.Mu myaka ya za 70, iryo koranabuhanga ryigeze kuba 80% by'imigabane ku isoko.Itandukaniro ryumuvuduko utandukanye muri rusange ugizwe nibice bibiri, igikoresho cyo guterura hamwe na transmitter.Ibikoresho bya Throttle, plaque ya orifice isanzwe, nozzles, pitot tubes, imiyoboro imwe yihuta, nibindi.Mubikoresho bitandukanye byo gutereta, isahani ya orifice niyo ikoreshwa cyane kubera imiterere yoroshye kandi kuyishyiraho byoroshye.Ariko, ifite ibisabwa bikomeye kurwego rwo gutunganya.Igihe cyose itunganijwe kandi igashyirwaho hakurikijwe ibisobanuro n'ibisabwa, gupima urujya n'uruza birashobora gukorwa mugihe kitazwi neza nyuma yubugenzuzi bwujuje ibisabwa, kandi ntigenzurwa neza.
Ibikoresho byose bisunika bifite igihombo kidasubirwaho.Igihombo kinini cyane ni orifice ityaye, ni 25% -40% yikinyuranyo kinini cyibikoresho.Gutakaza umuvuduko wa tube ya Pitot ni nto cyane kandi birashobora kwirengagizwa, ariko irumva cyane impinduka mumiterere ya fluid.
Ubwoko bwahantu hatandukanye
Ubusanzwe uhagarariye ubu bwoko bwa flowmeter ni rotameter.Inyungu zidasanzwe ni uko itaziguye kandi ntisaba amashanyarazi yo hanze iyo upimye kurubuga.
Rotameter igabanijwemo ibirahuri bya rotameter hamwe nicyuma cya rotameter ukurikije ibyo bakora nibikoresho.Ikirahuri cya rotor fluor ifite imiterere yoroshye, umwanya wa rotor uragaragara neza, kandi biroroshye gusoma.Ikoreshwa cyane mubushuhe busanzwe, umuvuduko usanzwe, itangazamakuru ryeruye kandi ryangirika, nkumwuka, gaze, argon, nibindi. Metal tube rotameter isanzwe ifite ibimenyetso byerekana magnetique, bikoreshwa mubushyuhe bwinshi nibibazo byumuvuduko mwinshi, kandi birashobora kwanduza bisanzwe ibimenyetso byo gukoreshwa hamwe na majwi, nibindi, kugirango bipime ibintu.
Kugeza ubu, hari vertical variable area flowmeter hamwe n'umutwe wuzuye isoko ya conical kumasoko.Ntabwo ifite ubwoko bwikomatanya hamwe nicyumba cya buffer.Ifite igipimo cyo gupima 100: 1 kandi ifite umurongo usohoka, ukwiranye no gupima amavuta.
Kunyeganyega
Vortex flowmeter isanzwe ihagarariye metero zinyeganyega.Nugushira ikintu kidafite umurongo mubyerekezo byimbere byamazi, kandi amazi akora ibice bibiri bisanzwe bitamenyerewe inyuma yikintu.Inshuro ya gari ya moshi ya vortex iringaniza n'umuvuduko utemba.
Ibiranga ubu buryo bwo gupima ntabwo ari ibice byimuka mumuyoboro, gusubiramo ibyasomwe, kwizerwa kwiza, igihe kirekire cyumurimo, intera yagutse yumurongo, hafi ya byose ntibiterwa nimpinduka zubushyuhe, umuvuduko, ubucucike, ubukonje, nibindi, hamwe no gutakaza umuvuduko muke. .Ukuri kwinshi (hafi 0.5% -1%).Ubushyuhe bwakazi bushobora kugera kuri 300 and, nigitutu cyakazi gishobora kugera kuri 30MPa.Ariko, umuvuduko wamazi ukwirakwiza no gutembera bizagira ingaruka kubipimo.
Ibitangazamakuru bitandukanye birashobora gukoresha tekinoroji itandukanye.Kumashanyarazi, kunyeganyega disiki cyangwa kristu ya piezoelectric irashobora gukoreshwa.Ku mwuka, ubushyuhe cyangwa ultrasonic birashobora gukoreshwa.Kubwamazi, tekinoroji hafi ya yose irakoreshwa.Kimwe na plaque ya orifice, vortex Coefficient ya metero yimodoka yo mumuhanda nayo igenwa nurwego.
Amashanyarazi
Ubu bwoko bwa flowmeter bukoresha ubunini bwumubyigano uterwa nigihe utemba utembera mumashanyarazi kugirango umenye imigendere.Kubwibyo birakwiriye gusa kubitangazamakuru byayobora.Mubyukuri, ubu buryo ntabwo bugira ingaruka kubushyuhe, umuvuduko, ubwinshi nubukonje bwamazi, igipimo cyurugero gishobora kugera kuri 100: 1, ubunyangamugayo ni 0.5%, diameter ikoreshwa ni kuva kuri 2mm kugeza kuri 3m, kandi ni nini cyane ikoreshwa mumazi nicyondo, Pulp cyangwa ingese yo gupima gupima.
Kubera ibimenyetso bidakomeye ,.amashanyarazi ya electroniquemubisanzwe ni 2,5-8mV gusa murwego rwuzuye, kandi umuvuduko wikigereranyo ni muto cyane, milivolts nkeya, ibyo bikaba byoroshye kwivanga hanze.Kubwibyo, birasabwa ko inzu yimashanyarazi, insinga ikingiwe, gupima umuyoboro, hamwe nu miyoboro kumpande zombi za transmitter bigomba guhagarara kandi bigashyiraho aho bihurira.Ntuzigere uhuza kubutaka rusange bwa moteri, ibikoresho byamashanyarazi, nibindi.
Ubwoko bwa Ultrasonic
Ubwoko bwa metero zitemba cyane ni Doppler itemba metero nigihe cyo gutandukanya metero.Doppler flowmeter itahura igipimo cyurugendo rushingiye kumihindagurikire yumurongo wijwi ryerekanwa nintego igenda mumazi yapimwe.Ubu buryo burakwiriye gupima umuvuduko mwinshi.Ntibikwiriye gupimwa umuvuduko muke, kandi ubunyangamugayo buri hasi, kandi ubworoherane bwurukuta rwimbere rwumuyoboro birasabwa kuba hejuru, ariko umuzenguruko wacyo uroroshye.
Itandukaniro ryigihe ritandukanya igipimo cyikigereranyo ukurikije itandukaniro ryigihe hagati yikwirakwizwa ryimbere ninyuma ya ultrasonic waves mumazi yo gutera inshinge.Kubera ko ubunini bwigihe butandukanye ari buto, kugirango tumenye neza ibipimo, ibisabwa kumuzunguruko wa elegitoronike ni byinshi, kandi ibiciro bya metero byiyongera bikurikije.Itandukaniro ryigihe gitemba mubisanzwe bikwiranye na laminari yuzuye itemba hamwe numuvuduko umwe wihuta.Kubintu bitemba, ibintu byinshi-bitandukanya ibihe bitandukanye.
Urukiramende
Ubu bwoko bwa flowmeter bushingiye kumahame yo kubungabunga umwanya wimbaraga.Amazi agira ingaruka kumuzingo kugirango azunguruke, kandi umuvuduko wigice kizunguruka ugereranije nigipimo cy umuvuduko.Noneho koresha uburyo nka magnetisme, optique, hamwe no kubara imashini kugirango uhindure umuvuduko mubimenyetso byamashanyarazi kugirango ubare umuvuduko.
Turbine flowmeter nuburyo bukoreshwa cyane kandi buhanitse bwubwoko bwibikoresho.Irakwiranye na gaze nibitangazamakuru byamazi, ariko biratandukanye gato mumiterere.Kuri gaze, inguni yayo ni ntoya kandi umubare wibyuma ni munini..Gutakaza umuvuduko ni muto kandi birwanya umuvuduko mwinshi, ariko bifite ibisabwa bimwe mubisuku byamazi, kandi bigira ingaruka kuburyo bworoshye nubucucike bwamazi.Gutoya umwobo wa diameter, niko bigira ingaruka.Kimwe na plaque ya orifice, menya neza ko hari bihagije mbere na nyuma yo kwishyiriraho.Igice kigororotse kugirango wirinde kuzunguruka no guhindura inguni yibikorwa.
Kwimura neza
Ihame ryakazi ryubwoko nkibi bipimwa ukurikije kugenda neza kwamazi ateganijwe buri rewolisiyo yumubiri uzunguruka.Igishushanyo cyibikoresho biratandukanye, nka oval gear flowmeter, rotary piston rotmeter, scraper flowmeter nibindi.Ikigereranyo cya oval gear flowmeter ni kinini, gishobora kugera kuri 20: 1, kandi ubunyangamugayo ni bwinshi, ariko ibikoresho byimuka biroroshye kwizirika kumwanda mumazi.Igipimo cyikigereranyo cya roton piston rotmeter nini, ariko kubera impamvu zubatswe, ingano yamenetse ni ndende.Kinini, kutamenya neza.Ikintu cyiza cyo kwimura ibintu ntigisanzwe cyigenga cyamazi, kandi gikwiranye nibitangazamakuru nkamavuta namazi, ariko ntibikwiriye kubitangazamakuru nkibyuka numwuka.
Buri kimwe muri ibyo byavuzwe haruguru gifite ibyiza byacyo nibibi, ariko nubwo ari ubwoko bumwe bwa metero, ibicuruzwa bitangwa nababikora bitandukanye bifite imikorere itandukanye.
Igihe cyo kohereza: Ukuboza-15-2021