Ngokuthuthuka kwezinga lobuchwepheshe laseShayina, ama-valve azishintshayo akhiqizwa yi-ChemChina nawo asetshenziswe ngokushesha, angaqedela ukulawula okunembile kokugeleza, ingcindezi, izinga loketshezi kanye nezinga lokushisa. Kuhlelo lokulawula okuzenzakalelayo kwamakhemikhali, i-valve elawulayo ingeye-actuator enkulu, imodeli yayo kanye nekhwalithi yedivayisi kunomthelela omkhulu kwikhwalithi yokumisa yesekethe yokubeka isimo. Uma ukukhethwa nokusetshenziswa kwe-valve yokulawula kungalungile, kuzosongela kakhulu impilo yesevisi ye-valve elawulayo, futhi noma ngabe isimo sibucayi, sizokwenza ngisho nesistimu ibangele izinkinga zokupaka. . Ngokuthuthukiswa kwe-automation yezimboni, i-valve yokulawula umoya nayo isetshenziswe kabanzi njenge-actuator evelele. Lolu hlobo lwe-valve yokulawula lunezici zesenzo esithembekile kanye nesakhiwo esilula. Inencazelo ebaluleke kakhulu yokuqinisekisa ukuphepha kohlelo. Ukuhlaziya okulandelayo Okujulile ekukhethweni nasekusetshenzisweni kwamavalvu okulawula umoya ohlelweni lokulawula okuzenzakalelayo kwamakhemikhali.
1. Ukukhethwa kwe-valve yokulawula umoya ohlelweni lokulawula okuzenzakalelayo kwamakhemikhali 1. Ukukhethwa kohlobo lwe-valve yokulawula kanye nesakhiwo kusekelwe umehluko wokushaywa kwayo. I-valve yokulawula umoya ingahlukaniswa ngezinhlobo ezimbili ezihlukene, okuyi-stroke eqondile kanye ne-angular stroke, ngokusho kwesakhiwo Ngokuya ngamaphuzu, ama-valve okulawula umoya angahlukaniswa abe ama-butterfly valve, ama-angle valve, ama-sleeve valves, ama-ball valves, ama-diaphragm valves, kanye ama-valve anesihlalo esisodwa esiqondile. Khonamanjalo, i-valve yokulawula yesihlalo esisodwa eqondile i-valve elawulayo evuza okuncane kakhulu ohlelweni lokufaka isicelo. Umsebenzi wokugeleza ulungile futhi isakhiwo silula. Ingasetshenziswa ezindaweni ezinezidingo eziqinile zokuvuza, kodwa indlela yayo yokugeleza ingcolile, nayo ivinjelwe ngezinga elithile. Ukuthuthukisa isikali sohlelo lokusebenza. I-valve yokulawula izihlalo ezimbili eqondile iphambene ne-valve yokulawula isihlalo esisodwa esiqondile. Asikho isidingo esiqinile sokuvuza. Ilungele ukusetshenziswa ezindaweni ezinomehluko omkhulu wengcindezi yokusebenza. Manje, ivalvu yokulawula izihlalo ezimbili eqondile iyona esetshenziswa kakhulu eShayina. Uhlobo lwe-valve yokulawula. Amavalvu emikhono angahlukaniswa abe yizinhlobo ezimbili, okungamavalve anemikhono evalwe kabili kanye namavalufu anemikhono evalwe eyodwa. Ama-valve emikhono anokuqina okuvelele, umsindo ophansi, kanye nokuhlakazeka nokuhlanganisa okulula. Kodwa-ke, izingcaphuno zabo ziphakeme kakhulu futhi izicelo zokulungisa nazo ziphezulu. Ngakho-ke, isikali sohlelo lokusebenza singaphansi kwezinye izithiyo. Indlela yokugeleza ye-valve ye-diaphragm ilula, futhi iphinde ikhiqize futhi isebenzise i-PT-FE ne-PFA enokumelana nokugqwala okuphezulu, okulungele kakhulu ukusetshenziswa ezindaweni eziqinile ze-alkali noma ze-asidi eqinile, kodwa umsebenzi wokulungisa umpofu kakhulu. 2. Ukukhethwa kwezinto zokusetshenziswa kwe-valve yokulawula Ukusetshenziswa kwamavalvu okulawula kunezidingo ezicishe zibe nzima zokumelana nokugqwala, isilinganiso sokucindezela kanye nezinga lokushisa. Ngakho-ke, ama-valve okulawula amanje asebenzisa kakhulu izinto zensimbi ekhonjiwe, ezingathuthukisa ngempumelelo ukumelana nokugqwala kwe-valve yokulawula. Futhi amandla acindezelayo; izinto zensimbi ezingenasici zisetshenziswa kakhulu ezintweni ezingavuthiwe zezingxenye zangaphakathi ze-valve yokulawula. Uma uhlelo lunezidingo eziphansi zokuvuza, ungakhetha izimpawu ezithambile. Uma isistimu inezidingo eziphezulu zokuvuza, udinga ukusebenzisa i-Hastelloy . Ekukhetheni izinto ezimelana nokugqwala, kuyadingeka ukuthi ufingqe futhi ucabangele ukugcwala koketshezi, izinga lokushisa nokucindezela, bese ukhetha ngokuphathelene nokushaqeka kwemishini. 3. Isimiso sokusebenza kanye nezinzuzo ze-valve yokulawula umoya (1) Ukuhlaziywa kwesimiso sokusebenza kwe-valve yokulawula umoya I-valve yendawo kanye nezinye izingxenye zingaqedela umphumela wokushayela i-valve, futhi ingaqedela ukulungiswa ngokulinganayo kwe-switch, bese-ke. sebenzisa amasiginali okulawula ahlukahlukene ukuze uqedele ukusetha izinga lokushisa eliphakathi kwamapayipi, ingcindezi, izinga lokugeleza kanye neminye imingcele. I-valve yokulawula umoya inezici zokusabela okusheshayo, ukulawula okulula, nokuphepha kwangaphakathi, futhi asikho isidingo sokufaka izinto ezivikela ukuqhuma. Ngemuva kokuthi igumbi lomoya linesignali ethile yokucindezela, ulwelwesi luzokhombisa ukusunduza, ukudonsa ipuleti le-thrust, isiqu se-valve, induku yokuphusha, isiphethu sokucindezela, kanye nomongo wevalvu ukuze kuhambe. Ngemuva kokuthi i-valve core ihlukaniswe nesihlalo se-valve, umoya ocindezelweyo uzozungeza. Ngemuva kokuthi ingcindezi yesignali ifinyelele inani elithile, i-valve izohlala ekuvuleni okuhambisanayo. I-valve yokulawula umoya inokwethenjelwa okuphezulu, isakhiwo esilula, futhi ngeke ibonise inhlansi kagesi ngesikhathi somsebenzi. Ngakho-ke, isilinganiso sohlelo lwayo sibanzi kakhulu, futhi singasetshenziswa naseziteshini zokuhambisa igesi ezinezidingo zokuvikela ukuqhuma.
2. Ukuhlaziywa kwezici zokugeleza kwe-valve yokulawula Izici zokugeleza ze-valve yokulawula zihlanganisa ukugeleza kokusebenza nokugeleza okuhle. Ngaphansi kwesimo sokuthi umehluko wengcindezi phakathi kwe-inlet ne-outlet uhlala njalo, ukugeleza nge-valve yokulamula kuwukugeleza okuhle. Lokhu kugeleza okuhle kunomugqa oqondile, i-Parabola, ukuvulwa okusheshayo, izici zephesenti. Mayelana nekhwalithi yokubeka isimo, inqubo yokulawula amakhemikhali ngokuzenzakalelayo incike kakhulu kumgomo wesinxephezelo sesici sokukhiqiza. Ukukhiqizwa kwesistimu kunemithetho eqinile ezicini ze-valve elawulayo. Ngokwalesi sici, lapho ukhetha, kuyadingeka ukuhlaziya isici sokukhulisa i-valve elawulayo. Vimbela i-coefficient yokumisa ukuthi ingashintshi. Ngokuqondene nezici zokugeleza, i-valve yokulawula izobonisa izinguquko ekuhambeni phakathi nenqubo yokusebenza, okulula kakhulu ukubangela imibuzo yokudlidliza. Uma umsebenzi omkhulu wokuvula usetshenziswa, i-valve yokulawula izobonakala ihamba kancane, futhi kulula kakhulu ukukhombisa ukuthi ukulungiswa akukafiki ngesikhathi futhi ukulungiswa akuzweli. Uma ucabangela lesi sici, i-valve yokulawula ukugeleza komugqa akufanele isetshenziswe ohlelweni olunezinguquko ezinkulu.
3. Izinyathelo zokuqapha lapho ufaka i-valve elawulayo Ngaphambi kokufaka i-valve yokulawula, i-valve yokulawula idinga ukuhlaziywa ngokucophelela nangolwazi. Ngemva kokuba ipayipi lihlanzwe kahle, ukufakwa kungenziwa. Phakathi nenqubo yokufaka, kuyadingeka ukugcina isimo esiqondile noma esiqondile. Ngesikhathi esifanayo, kuyadingeka futhi ukusetha amabakaki ezindaweni zangaphambili nangemuva ze-valve elawulayo ukuze kuqinisekiswe ukuphepha nokuzinza kokusebenza kwe-valve elawulayo. Ngaphezu kwalokho, ohlelweni lokufakwa, kuyadingeka futhi ukuhlaziya isiqondiso sokugeleza. Ukuze uqinisekise ikhwalithi yedivayisi, idivayisi kufanele ifakwe ngaphansi kwesimo sokucindezeleka okuncane. Kuyadingeka futhi ukuqinisekisa ukuthi ubude besigaba sepayipi eqondile ekuqondeni kwe-inlet buhlangabezana nezidingo zokucaciswa. Uma ukufakwa kudinga i-valve enobubanzi obuncane, idinga ukuhambisana ngokuqinile nemithetho yokuhlela. Ngaphansi kwezimo ezijwayelekile, ingxenye yepayipi eqondile endleleni yokuphuma idinga ukuba izikhathi ezi-3 kuya kwezi-5 ezinkulu kunobubanzi be-valve. Ngesikhathi sokufakwa, kuyadingeka ukushiya isikhala esanele ukuze kube lula ukuvikela nokusebenza okulandelayo, nokulawula ububanzi bepayipi. Lapho ukhetha indlela yokuxhuma ipayipi, izici ezihlukahlukene ezithonya kufanele zifinyezwe futhi zihlaziywe. 4. Ekuphetheni, i-valve yokulawula iyingxenye eyinhloko ye-loop yamakhemikhali yokulawula okuzenzakalelayo. Ukukhethwa, idivayisi nokuvikelwa kwe-valve yokulawula kuzothinta umsebenzi wesistimu yamakhemikhali. Ngakho-ke, u-opharetha kufanele alandele ngokuqinile imihlahlandlela yedivayisi efanele futhi afingqe Ukuze uhlaziye izinhlobo ezahlukene, khetha njalo ivalvu elawulayo. Ngokuthuthuka kwesayensi nobuchwepheshe, ukulawulwa kwamakhemikhali okuzenzakalelayo nakho kubeke phambili izidingo eziphakeme zokulawula amavalvu. Lokhu kudinga ucwaningo olunzulu mayelana nama-valve okulawula ukuze kuthuthukiswe ngokuqhubekayo ukwethembeka nokuzinza kwama-valve alawulayo.
Isikhathi sokuthumela: Nov-27-2021