Ukwahlukaniswa kwemishini yokugeleza kungahlukaniswa: i-volumetric flowmeter, i-velocity flowmeter, i-flowmeter ekhonjiwe, i-flowmeter kagesi, i-vortex flowmeter, i-rotameter, i-flowmeter yengcindezi eyehlukile, i-flowmeter ye-ultrasonic, imitha yokugeleza kweMisa, njll.
1. Rotameter
I-flowmeter ye-float, eyaziwa nangokuthi i-rotameter, iyinhlobo yendawo yokuguquguquka kwendawo eguquguqukayo. Kuthubhu yesigaxa esime mpo enwebeka ukusuka ezansi kuye phezulu, amandla we-float wesigaba esiyisiyingi esijikelezayo athwalwa ngamandla e-hydrodynamic, futhi iflothi lingaba ku Isigaxa singakhuphuka futhi siwe ngokukhululeka. Ihamba iye phezulu naphansi ngaphansi kwesenzo sokugeleza kwe-velocity ne-buoyancy, futhi ngemuva kokulinganisa nesisindo seflothi, idluliselwa ekudayeleni ukukhombisa isilinganiso sokugeleza ngokusebenzisa ukuhlangana kukazibuthe. Ngokuvamile ihlukaniswe ngama-rotameter engilazi nensimbi. Ama-flowmeters ensimbi ajwayelekile asetshenziswa kakhulu embonini. Kwabezindaba abonakalisayo abanamadayimitha amancane wepayipi, ingilazi ivame ukusetshenziswa. Ngenxa yobucayi bengilazi, iphoyinti lokulawula eliyisihluthulelo libuye libe yi-rotor flowmeter eyenziwe ngezinsimbi eziyigugu njenge-titanium. . Kunabakhiqizi abaningi be-rotor flowmeter basekhaya, ikakhulukazi uChengde Kroni (esebenzisa ubuchwepheshe be-Cologne yaseJalimane), iKaifeng Instrument Factory, iChongqing Chuanyi, neChangzhou Chengfeng bonke bakhiqiza ama-rotameter. Ngenxa yokunemba okuphezulu nokuphindeka kwama-rotameter, Isetshenziswa kakhulu ekutholakaleni kokugeleza kwamaphayimitha amancane wepayipi (≤ 200MM).
2. Imitha yokuhamba efanelekile yokuhamba
I-flowmeter yokufuduka okuhle ikala ukugeleza kwevolumu kuketshezi ngokulinganisa ivolumu yemitha eyakhiwe phakathi kwendlu ne-Rotor. Ngokuya ngesakhiwo se-rotor, amamitha wokuhamba wokuhamba afanele afaka phakathi uhlobo lwamasondo okhalweni, uhlobo lokususa, uhlobo lwegiya elliptical njalonjalo. Amamitha wokuhamba wokuhamba kahle akhonjiswa ngokunemba kokulinganisa okuphezulu, amanye afinyelela ku-0.2%; isakhiwo esilula futhi esinokwethenjelwa; ukusetshenziswa okubanzi; ukushisa okuphezulu nokucindezela okukhulu; izimo zokufaka eziphansi. Isetshenziswa kabanzi ekulinganisweni kukawoyela ongahluziwe neminye imikhiqizo kawoyela. Kodwa-ke, ngenxa yedrayivu yegiya, iningi lepayipi liyingozi enkulu efihliwe. Kuyadingeka ukufaka isihlungi phambi kwemishini, enesikhathi esilinganiselwe sempilo futhi evame ukudinga ukunakekelwa. Amayunithi amakhulu wokukhiqiza asekhaya yile: Kaifeng Instrument Factory, Anhui Instrument Factory, njll.
3. Ukwehluka kwengcindezi yokugeleza kwengcindezi
I-flowmeter yengcindezi ehlukile iyidivayisi yokulinganisa enomlando omude wokusetshenziswa kanye nedatha yokuhlola ephelele. Kuyimitha yokugeleza elinganisa umehluko wencindezi emile ekhiqizwa uketshezi olugeleza edonsa ngokushona ukubonisa izinga lokugeleza. Ukucushwa okuyisisekelo kunakho konke okwenziwe yidivayisi yokuthwebula, ipayipi lesignali yokuhlukanisa kanye negeji yengcindezi ehlukile. Idivayisi esetshenziswa kakhulu yokushwabana embonini "yidivayisi ejwayelekile yokubamba" eye yaqiniswa. Isibonelo, i-orifice ejwayelekile, umlomo wombhobho, umbhobho we-venturi, ithubhu ye-venturi. Manje idivaysi yokuphihliza, ikakhulukazi isilinganiso sokugeleza kombhobho, isiya ekuhlanganisweni, futhi isinxephezelo sokuhambisa ingcindezi ephezulu kakhulu ngokunemba kanye nesinxephezelo sokushisa sihlanganiswe nombhobho, okuthuthukisa kakhulu ukunemba. Ubuchwepheshe beshubhu lePitot bungasetshenziselwa ukulinganisa idivayisi yokuthwebula online. Kulezi zinsuku, amanye amadivayisi angajwayelekile okugoqana nawo asetshenziswa ekulinganisweni kwezimboni, okufana namacwecwe ama-orifice aphindwe kabili, amapuleti azungezayo ama-orifice, amapuleti we-orifice orifice, njll. Lezi zimitha ngokuvamile zidinga ukulinganiswa kokugeleza kwangempela. Isakhiwo sedivayisi ejwayelekile ye-throttling silula, kepha ngenxa yezidingo zayo eziphakeme kakhulu zokubekezelelana, ukuma nokubekezelela isikhundla, ubuchwepheshe bokucubungula bunzima kakhulu. Ukuthatha ipuleti elijwayelekile le-orifice njengesibonelo, kuyingxenye efana nepuleti e-ultra-thin, ethambekele ekuguqulweni ngesikhathi sokucutshungulwa, futhi amapuleti amakhulu we-orifice nawo athambekele ekuguqulweni ngesikhathi sokusetshenziswa, okuthinta ukunemba. Imbobo yengcindezi yedivayisi ephihlizayo ngokuvamile ayinkulu kakhulu, futhi izokhubazeka ngesikhathi sokusetshenziswa, okuzothinta ukunemba kwesilinganiso. Ipuleti le-orifice elijwayelekile lizokhipha izinto zesakhiwo ezihlobene nesilinganiso (njengama-engeli abukhali) ngenxa yokuqubuka koketshezi olubhekene nalo ngesikhathi sokusebenzisa, okuzonciphisa ukunemba kwesilinganiso
Yize ukwakhiwa kwamamitha wokugeleza kokwehluka kusaqala, ngokuthuthuka okuqhubekayo kanye nokuthuthuka kwezinye izinhlobo zamamitha wokugeleza, kanye nokwenza ngcono okuqhubekayo kwezidingo zesilinganiso sokugeleza kokuthuthuka kwezimboni, isikhundla samamitha wokugeleza kwengcindezi wokulinganisa esikhungweni sezimboni bekungxenye ethile Kuthathelwa indawo ukugeleza okuthuthukile, okuphezulu nokunemba.
4. I-flowmeter kagesi
I-flowmeter ye-electromagnetic ithuthukiswa ngokususelwa kumgomo wokungeniswa kagesi kaFaraday ukukala ukugeleza kwevolumu kuketshezi oluhambayo. Ngokomthetho kaFaraday wokungeniswa kwe-electromagnetic, lapho umqhubi esika intambo kazibuthe emkhakheni kazibuthe, kukhiqizwa i-voltage eyenziwe kumqhubi. Ubukhulu bamandla kagesi kagesi buhambisana nobomqhubi. Enkhakheni kazibuthe, isivinini sokunyakaza esiqondana nensimu kazibuthe siyalingana, bese kuthi ngokobubanzi bepayipi nomehluko walokho okuphakathi, siguqulwe sibe isilinganiso sokugeleza.
I-flowmeter ye-Electromagnetic kanye nezimiso zokukhetha: 1) Uketshezi oluzolinganiswa kufanele lube uketshezi oluqhubayo noma i-slurry; 2) Ubungako nobubanzi, okungcono ububanzi obujwayelekile bungaphezu kwesigamu sebanga eligcwele, futhi isilinganiso sokugeleza siphakathi kwamamitha ayi-2-4; 3). Ingcindezi yokusebenza kufanele ibe ngaphansi kokumelana nengcindezi kwe-flowmeter; 4). Izinto ezahlukahlukene zokufaka ulayini nezinto ze-electrode kufanele zisetshenziselwe amazinga okushisa ahlukahlukene kanye nemidiya eyonakalisayo.
Ukunemba kokulinganisa kwe-flowmeter kagesi kususelwa esimweni lapho uketshezi lugcwele ipayipi, futhi inkinga yesilinganiso somoya osepayipini ayikaxazululwa kahle.
Izinzuzo zama-flowmeters kagesi kagesi: Akukho ngxenye yokubamba, ngakho-ke ukulahleka kwengcindezi kuncane, futhi ukusetshenziswa kwamandla kuyancipha. Kuhlobene kuphela nesivinini esimaphakathi soketshezi olinganisiwe, futhi ububanzi besilinganiso bubanzi; eminye imithombo yezindaba ingalinganiswa kuphela ngemuva kokulinganiswa kwamanzi, ngaphandle kokulungiswa, Okufanele kakhulu ukusetshenziswa njengedivayisi yokulinganisa ukuhlala. Ngenxa yokuthuthuka okuqhubekayo kobuchwepheshe nezinqubo zenqubo, ukuthuthuka okuqhubekayo kokuqina, ukulingana, ukunemba kanye nempilo, nokwanda okuqhubekayo kwamaphayiphu wamapayipi, ukulinganiswa kwemithombo eqinile equkethe oketshezi olunezinhlangothi ezimbili isebenzisa ama-electrode angashintshwa nama-electrode okususa ukuxazulula inkinga. Ingcindezi ephezulu (32MPA), ukumelana nokugqwala (ulwelwesi lwe-asidi nolwe-alkali) izinkinga zokulinganisa okuphakathi, kanye nokwanda okuqhubekayo kwe-caliber (kufika ku-3200MM caliber), ukwanda okuqhubekayo kwempilo (ngokuvamile kukhulu kuneminyaka eyi-10), i-electromagnetic ama-flowmeters asetshenziswa kakhulu futhi asetshenziswa kakhulu, izindleko zawo nazo zehlisiwe, kepha intengo isiyonke, ikakhulukazi intengo yamaphayiphu amakhulu wamapayipi, isephezulu, ngakho-ke inesikhundla esibalulekile ekuthengeni ama-flow meters.
5. I-flowmeter ye-Ultrasonic
I-Ultrasonic flowmeter uhlobo olusha lwensimbi yokulinganisa ukugeleza olwenziwe ezikhathini zanamuhla. Uma nje uketshezi olungadlulisa umsindo lungalinganiswa nge-flowmeter ye-ultrasonic; i-flowmeter ye-ultrasonic ingalinganisa ukugeleza kuketshezi oluphezulu lwe-viscosity, uketshezi olungasebenzi noma igesi, nesilinganiso salo Umgomo wezinga lokugeleza uwukuthi: isivinini sokusakazwa kwamagagasi e-ultrasonic kuketshezi sizohluka ngezinga lokugeleza koketshezi olulinganiswayo. Njengamanje, ama-flowmeters asezingeni eliphakeme kakhulu aseseyizwe lemikhiqizo yangaphandle, njengeFuji yaseJapan, iKanglechuang yaseMelika; abakhiqizi basekhaya bama-flowmeters e-ultrasonic ikakhulukazi afaka: iTangshan Meilun, iDalian Xianchao, iWuhan Tailong njalonjalo.
Ama-flowmeters e-Ultrasonic ngokuvamile awasetshenziswa njengezinsimbi zokulinganisa, futhi umkhiqizo awunakumiswa ukushintshwa lapho iphoyinti lokulinganisa esizeni lonakele, futhi livame ukusetshenziswa ezimeni lapho imingcele yokuhlola idingeka ukuqondisa ukukhiqizwa. Inzuzo enkulu kakhulu yama-flowmeters e-ultrasonic ukuthi asetshenziselwa isilinganiso esikhulu sokugeleza (ubukhulu bamapayipi amakhulu kunamamitha amabili). Noma kusetshenziswa amanye amaphuzu we-metering ukulungisa, ukusetshenziswa kwe-high-precision flowmeters ye-ultrasonic kungonga izindleko futhi kunciphise ukugcinwa.
6. Imitha yokuhamba ngobuningi
Ngemuva kweminyaka yocwaningo, ithubhu le-flowmeter elime njengo-U laqala ukwethulwa yinkampani yaseMelika iMICRO-MOTION ngonyaka we-1977. Kwathi lapho le flowmeter iphuma, yabonisa amandla ayo aqinile. Inzuzo yayo ukuthi isignali yokugeleza kwesisindo ingatholwa ngqo, futhi ayithinteki ithonya lePharamitha ebonakalayo, ukunemba kungu- ± 0.4% wenani elilinganisiwe, kanti abanye bangafinyelela ku-0.2%. Ingakala izinhlobo ezahlukahlukene zamagesi, uketshezi nama-slurries. Ilungele ngokukhethekile ukukala i-petroleum gas ne-gas yemvelo ene-liquefied nemithombo yezokuhweba esezingeni eliphakeme, enezelwe I-flowmeter kagesi ayanele; ngoba ayithinteki ukusatshalaliswa kwesivinini sokugeleza ohlangothini olukhuphukayo, asikho isidingo sezingxenye zamapayipi eziqondile ezingxenyeni ezingaphambili nezingemuva ze-flowmeter. Okubi ukuthi i-flowmeter enesisindo inokunemba okuphezulu kokucubungula futhi ngokuvamile inesisindo esisindayo, ngakho-ke kuyabiza; ngoba ithinteka kalula ngokudlidlizela kwangaphandle futhi ukunemba kuyancipha, naka ukukhetha kwendawo nokufakwa kwayo.
7. I-Vortex flowmeter
I-vortex flowmeter, eyaziwa nangokuthi i-vortex flowmeter, ingumkhiqizo owavela kuphela ngasekupheleni kweminyaka yama-1970. Idume kakhulu selokhu yafakwa emakethe futhi isetshenziswe kabanzi ukukala uketshezi, igesi, umusi neminye imithombo yezindaba. I-vortex flowmeter iyi-velocity flowmeter. Isiginali yokukhipha isignali yokuvama kokushaywayo noma isignali yamanje ejwayelekile ngokulingana nezinga lokugeleza, futhi ayithintwa ukushisa okumanzi, ukwakheka kwengcindezi, i-viscosity nobuningi. Isakhiwo silula, azikho izingxenye ezihambayo, futhi into yokuthola ayithinti uketshezi oluzolinganiswa. Inezici zokunemba okuphezulu nempilo ende yokusebenza. Okubi ukuthi isigaba esithile samapayipi aqondile siyadingeka ngesikhathi sokufakwa, futhi uhlobo olujwayelekile alunaso isixazululo esihle sokudlidliza nokushisa okuphezulu. Umgwaqo we-vortex unezinhlobo zama-piezoelectric kanye ne-capacitive. Lesi sakamuva sinezinzuzo ekumelaneni namazinga okushisa kanye nokumelana nokudlidliza, kepha kuyabiza kakhulu futhi kuvame ukusetshenziselwa ukukala umusi oshisa kakhulu.
8. Target flow imitha
Isilinganiso sokulinganisa: Lapho okugeleza okuphakathi kushubhu lokulinganisa, umehluko wengcindezi phakathi kwamandla ayo kinetic kanye ne-plate ekhonjiwe kuzodala ukususwa okuncane kwepuleti eliqondiwe, futhi amandla avelayo alingana nezinga lokugeleza. Ingakala ukugeleza okuncane kakhulu, isilinganiso sokugeleza okuphansi kakhulu (0 -0.08M / S), futhi ukunemba kungafinyelela ku-0.2%.
Isikhathi Iposi: Apr-07-2021