Ukuhlukaniswa kwemishini yokugeleza kungahlukaniswa: i-volumetric flowmeter, i-velocity flowmeter, i-flowmeter eqondiwe, i-electromagnetic flowmeter, i-vortex flowmeter, i-rotameter, i-different pressure flowmeter, i-flowmeter ye-ultrasonic, imitha yokugeleza kweMisa, njll.
1. I-Rotameter
I-Float flowmeter, eyaziwa nangokuthi i-rotameter, iwuhlobo lwe-flowmeter yendawo eguquguqukayo.Kushubhu yekhoni eqondile enwebekayo isuka phansi iye phezulu, amandla adonsela phansi okuntanta kwesigaba esiphambanayo esiyindilinga athwalwa amandla e-hydrodynamic, futhi ukuntanta kungaba ku-Ikhoni ingakhuphuka futhi iwe ngokukhululeka.Iya phezulu naphansi ngaphansi kwesenzo sokugeleza kwesivinini kanye nokunyakaza, futhi ngemva kokulinganisa nesisindo sokuntanta, idluliselwa endaweni yokudayela ukukhombisa izinga lokugeleza ngokusebenzisa ukuhlangana kazibuthe.Ngokuvamile ihlukaniswe ingilazi kanye rotameters metal.I-Metal rotor flowmeters isetshenziswa kakhulu embonini.Ukuze uthole imidiya ebolayo enamamitha amapayipi amancane, ingilazi ivame ukusetshenziswa.Ngenxa yobuthakathaka bengilazi, indawo yokulawula ukhiye iphinde ibe yi-rotor flowmeter eyenziwe ngezinsimbi eziyigugu njenge-titanium..Kunabakhiqizi abaningi basekhaya be-rotor flowmeter, ikakhulukazi i-Chengde Kroni (esebenzisa ubuchwepheshe be-German Cologne), i-Kaifeng Instrument Factory, i-Chongqing Chuanyi, ne-Changzhou Chengfeng bonke bakhiqiza ama-rotameter.Ngenxa yokunemba okuphezulu nokuphindaphinda kwama-rotameters, Isetshenziswa kabanzi ekutholeni ukugeleza kwamadayimitha amapayipi amancane (≤ 200MM).
2. Imitha yokugeleza evumayo
I-flowmeter enhle ikala ukugeleza kwevolumu yoketshezi ngokulinganisa ivolumu yemitha eyakhelwe phakathi kwendlu ne-rotor.Ngokwesakhiwo se-rotor, amamitha okugeleza okuhle afaka uhlobo lwamasondo okhalweni, uhlobo lwe-scraper, uhlobo lwegiya eliyi-elliptical nokunye.Amamitha okugeleza okuhamba kahle abonakala ngokunemba okuphezulu kokulinganisa, amanye kufika ku-0.2%;isakhiwo esilula nesithembekile;ukusebenza okubanzi;izinga lokushisa eliphezulu nokumelana nokucindezela okukhulu;izimo zokufaka eziphansi.Isetshenziswa kakhulu ekukaleni uwoyela ongahluziwe neminye imikhiqizo kawoyela.Nokho, ngenxa yokushayela kwegiya, inqwaba yepayipi iyingozi enkulu efihliwe.Kuyadingeka ukufaka isihlungi phambi kwemishini, enesikhathi esilinganiselwe sokuphila futhi ngokuvamile esidinga ukulungiswa.Amayunithi amakhulu okukhiqiza asekhaya yilawa: I-Kaifeng Instrument Factory, i-Anhui Instrument Factory, njll.
3. Imitha yokugeleza kwengcindezi ehlukile
I-flowmeter yengcindezi ehlukile iyidivayisi yokulinganisa enomlando omude wokusetshenziswa nedatha yokuhlola ephelele.Kuyimitha yokugeleza ekala umehluko wengcindezi emile ekhiqizwe uketshezi olugeleza kudivayisi ephushayo ukuze kuboniswe izinga lokugeleza.Ukucushwa okuyisisekelo kunawo wonke kwakhiwe idivayisi edonsayo, ipayipi lesignali yomfutho ohlukile kanye negeji yengcindezi ehlukile.Idivayisi esetshenziswa kakhulu edonsa kanzima embonini “idivayisi eshaya ngamandla” esenziwe yafana.Isibonelo, i-orifice ejwayelekile, i-nozzle, i-venturi nozzle, i-venturi tube.Manje idivayisi edonsayo, ikakhulukazi isilinganiso sokugeleza kwe-nozzle, iqhubekela ekuhlanganisweni, futhi isidluliseli sokucindezela okunembayo okuphezulu kanye nesinxephezelo sezinga lokushisa kuhlanganiswe nombhobho, okuthuthukisa kakhulu ukunemba.Ubuchwepheshe be-pitot tube bungasetshenziswa ukulinganisa idivayisi eshayayo ku-inthanethi.Ezinsukwini zamanje, amanye amadivaysi okudonsa amanzi angajwayelekile nawo asetshenziswa esilinganisweni semboni, njengamapuleti e-double orifice, ama-round orifice plate, ama-annular orifice plate, njll. Lawa mamitha ngokuvamile adinga ukulinganiswa kokugeleza kwangempela.Isakhiwo sedivaysi evamile yokudonsa ilula, kodwa ngenxa yezidingo zayo eziphakeme kakhulu zokubekezelelana kwe-dimensional, ukwakheka nokubekezelela isikhundla, ubuchwepheshe bokucubungula bunzima.Ukuthatha ipuleti elijwayelekile le-orifice njengesibonelo, liyingxenye efana ne-ultra-thin plate-like, ethambekele ekuwohlokeni ngesikhathi sokucutshungulwa, namapuleti amakhudlwana we-orifice nawo athambekele ekuwohlokeni ngesikhathi sokusetshenziswa, okuthinta ukunemba.Imbobo yokucindezela yedivayisi edonsayo ngokuvamile ayinkulu kakhulu, futhi izokonakala ngesikhathi sokusetshenziswa, okuzothinta ukunemba kokulinganisa.I-orifice plate ejwayelekile izoguga izakhi zesakhiwo ezihlobene nesilinganiso (njengama-engeli ashubile) ngenxa yokushwibeka koketshezi olumelene nalo phakathi nokusetshenziswa, okuzonciphisa ukunemba kokulinganisa.
Nakuba ukuthuthukiswa kwamamitha okugeleza kokucindezela okuhlukile kusesekuseni kakhulu, ngokuthuthukiswa okuqhubekayo nokuthuthukiswa kwezinye izinhlobo zamamitha okugeleza, kanye nokuthuthukiswa okuqhubekayo kwezidingo zokulinganisa ukugeleza ekuthuthukisweni kwezimboni, isikhundla samamitha okugeleza kwengcindezi ehlukile ekulinganisweni kwezimboni kuye kwaba ngokwengxenye. Ithathelwa indawo ngamamitha okugeleza athuthukile, anemba okuphezulu futhi afanelekile.
4. I-electromagnetic flowmeter
I-flowmeter ye-electromagnetic yathuthukiswa ngokususelwa kumgomo we-Faraday electromagnetic induction ukukala ukugeleza kwevolumu yoketshezi oluqhutshwayo.Ngokomthetho ka-Faraday wokungeniswa kwe-electromagnetic, lapho umqhubi we-conductor enqamula umugqa wendawo kazibuthe endaweni kazibuthe, i-voltage eyenziwe ikhiqizwa ku-conductor.Ubukhulu bamandla e-electromotive buhambisana nekhondakta.Emkhakheni kazibuthe, isivinini sokunyakaza kwe-perpendicular field magnetic silingana, bese ngokusho kobubanzi bepayipi kanye nomehluko we-medium, iguqulwa ibe yizinga lokugeleza.
I-electromagnetic flowmeter kanye nezimiso zokukhetha: 1) Uketshezi oluzokalwa kufanele lube uketshezi olushintshayo noma lube ludaka;2) Izinga nobubanzi, okungcono ububanzi obuvamile bungaphezu kwengxenye yobubanzi obugcwele, futhi izinga lokugeleza liphakathi kwamamitha angu-2-4;3).Ingcindezi yokusebenza kufanele ibe ngaphansi kokumelana nokucindezela kwe-flowmeter;4).Izinto ezihlukene zamalayini kanye nezinto ze-electrode kufanele zisetshenziselwe amazinga okushisa ahlukene kanye nemidiya egqwalayo.
Ukunemba kokulinganisa kwe-electromagnetic flowmeter kusekelwe esimweni lapho uketshezi lugcwele ipayipi, futhi inkinga yokulinganisa yomoya epayipini ayikaxazululwa kahle.
Izinzuzo zama-flowmeters kagesi: Ayikho ingxenye edonsayo, ngakho-ke ukulahleka kwengcindezi kuncane, futhi ukusetshenziswa kwamandla kuyehla.Ihlobene kuphela nesivinini esimaphakathi soketshezi olulinganisiwe, futhi ububanzi bokulinganisa bubanzi;enye imidiya ingakalwa kuphela emva kokulinganiswa kwamanzi, ngaphandle kokulungiswa, Ifanele kakhulu ukusetshenziswa njengedivaysi yokulinganisa indawo yokuhlala.Ngenxa yokuthuthukiswa okuqhubekayo kobuchwepheshe kanye nezinto zenqubo, ukuthuthukiswa okuqhubekayo kokuzinza, ukuhambisana, ukunemba nokuphila, nokwanda okuqhubekayo kwamadayimitha amapayipi, ukulinganiswa kwemidiya yezigaba ezimbili eziqinile zisebenzisa ama-electrode ashintshwayo kanye nama-electrode e-scraper ukuxazulula inkinga.Ingcindezi ephezulu (32MPA), ukumelana nokugqwala (i-anti-acid ne-alkali lining) izinkinga zokulinganisa okuphakathi, kanye nokwanda okuqhubekayo kwekalibhu (kufika ku-3200MM caliber), ukwanda okuqhubekayo kwempilo (imvamisa enkulu kuneminyaka eyi-10), i-electromagnetic ama-flowmeters aya ngokuya asetshenziswa Kabanzi, izindleko zayo nazo zincishisiwe, kodwa intengo iyonke, ikakhulukazi intengo yamadayimitha amapayipi amakhulu, isephezulu, ngakho-ke inesikhundla esibalulekile ekuthengeni amamitha okugeleza.
5. I-Flowmeter ye-ultrasonic
I-Flowmeter ye-Ultrasonic iwuhlobo olusha lwethuluzi lokulinganisa ukugeleza elakhiwe ezikhathini zanamuhla.Uma nje uketshezi olungadlulisa umsindo lungalinganiswa nge-flowmeter ye-ultrasonic;I-flowmeter ye-ultrasonic ingakwazi ukukala ukugeleza kwe-high-viscosity liquid, i-non-conductive liquid noma igesi, kanye nokulinganisa kwayo Isimiso sokugeleza kwesilinganiso siwukuthi: isivinini sokusabalalisa samagagasi e-ultrasonic oketshezini sizohluka ngesilinganiso sokugeleza koketshezi olulinganiswayo.Njengamanje, ama-flowmeters e-ultrasonic anembile kakhulu asewumhlaba wemikhiqizo yangaphandle, njenge-Fuji yaseJapane, i-Kanglechuang yase-United States;abakhiqizi basekhaya of flowmeters ultrasonic ikakhulukazi zihlanganisa: Tangshan Meilun, Dalian Xianchao, Wuhan Tailong njalonjalo.
Ama-flowmeters e-Ultrasonic ngokuvamile awasetshenziswa njengamathuluzi okulinganisa okuhlala, futhi ukukhiqizwa akukwazi ukumiswa ukuze kushintshwe lapho indawo yokulinganisa esendaweni yonakele, futhi ivame ukusetshenziswa ezimeni lapho imingcele yokuhlola idingeka ukuze uqondise ukukhiqizwa.Inzuzo enkulu yama-flowmeters e-ultrasonic ukuthi asetshenziselwa ukulinganisa ukugeleza kwe-caliber enkulu (amadamitha wamapayipi angaphezu kwamamitha angu-2).Ngisho noma amanye amaphuzu okulinganisa asetshenziselwa ukuxazululwa, ukusetshenziswa kwama-flowmeters e-ultrasonic anembile kungasindisa izindleko futhi kunciphise ukulungiswa.
6. Imitha yokugeleza okukhulu
Ngemva kweminyaka yocwaningo, i-tube mass flowmeter emise okwe-U yethulwa okokuqala yinkampani yaseMelika i-MICRO-MOTION ngo-1977. Lapho le flowmeter iphuma, yabonisa amandla ayo aqinile.Inzuzo yayo ukuthi isignali yokugeleza kwenqwaba ingatholakala ngokuqondile, futhi ayithinteki ithonya leParameter yomzimba, ukunemba kungu-± 0.4% yenani elilinganisiwe, kanti abanye bangafinyelela ku-0.2%.Ingakwazi ukukala izinhlobonhlobo zamagesi, uketshezi kanye nama-slurries.Ifaneleka ngokukhethekile ukulinganisa igesi ye-petroleum ewuketshezi kanye negesi yemvelo ewuketshezi ngemidiya yokuhweba esezingeni, engeziwe I-flowmeter ye-electromagnetic ayanele;ngoba akuthintwa ukugeleza kwesivinini sokugeleza ohlangothini olukhuphuka nomfula, asikho isidingo sezingxenye zamapayipi eziqondile emaceleni angaphambili nangemuva e-flowmeter.Okubi ukuthi i-flowmeter mass inokunemba okuphezulu kokucubungula futhi ngokuvamile inesisekelo esinzima, ngakho kuyabiza;ngoba kuthinteka kalula ukudlidliza kwangaphandle futhi ukunemba kuncishisiwe, qaphela ukukhethwa kwendawo yokufaka yayo nendlela.
7. I-Vortex flowmeter
I-vortex flowmeter, eyaziwa nangokuthi i-vortex flowmeter, iwumkhiqizo owaphuma kuphela ngasekupheleni kwawo-1970.Selokhu yafakwa emakethe futhi ibisetshenziswa kabanzi ukukala uketshezi, igesi, umusi neminye imithombo yezindaba.I-vortex flowmeter iyi-flowmeter ye-velocity.Isignali yokuphumayo isignali yefrikhwensi ye-pulse noma isignali evamile yamanje ngokulingana nezinga lokugeleza, futhi ayithinteki izinga lokushisa loketshezi, ukwakheka kwengcindezi, i-viscosity kanye nokuminyana.Isakhiwo silula, azikho izingxenye ezinyakazayo, futhi isici esitholwayo asithinti uketshezi oluzolinganiswa.Inezici zokunemba okuphezulu nempilo ende yenkonzo.Ukungalungi ukuthi ingxenye ethile yepayipi eqondile iyadingeka ngesikhathi sokufakwa, futhi uhlobo olujwayelekile alunayo isisombululo esihle sokudlidliza nokushisa okuphezulu.Umgwaqo we-vortex unezinhlobo ze-piezoelectric kanye ne-capacitive.Lokhu kwakamuva kunezinzuzo ekumelaneni nezinga lokushisa nokumelana nokudlidliza, kodwa kubiza kakhulu futhi ngokuvamile kusetshenziselwa ukukala isitimu esishisa kakhulu.
8. Imitha yokugeleza okuqondiwe
Umgomo wokulinganisa: Uma okuphakathi kugeleza eshubhuni yokulinganisa, umehluko wengcindezi phakathi kwamandla ekhinethiki ayo kanye nepuleti eliqondiwe kuzodala ukugudluzwa kancane kwepuleti eliqondiwe, futhi amandla aphumayo alingana nezinga lokugeleza.Ingakwazi ukukala ukugeleza kwe-ultra-small, izinga lokugeleza eliphansi kakhulu (0 -0.08M/S), futhi ukunemba kungafinyelela ku-0.2%.
Isikhathi sokuthumela: Apr-07-2021