I-Chemical Industry Specific Gate Valve

Singumenzi wamavalvu ochwepheshe ophethe izitifiketi ze-ISO, API kanye ne-CE. Siphethe imishini yokukhiqiza ethuthukisiwe kanye nesethi egcwele yezinhlelo zokulawula ikhwalithi. Futhi samukela ama-oda we-OEM ne-ODM, anamanani amancane avumelana nezimo. Amavalvu ethu amakhemikhali amelana nokugqwala athunyelwa emhlabeni wonke futhi azuza ukuqashelwa okubanzi kumakhasimende emboni yamakhemikhali.

Izimfanelo Ezibalulekile

Yiziphi izici ezikhethekile zale Valve Yesango Eliqondile Lemboni Yekhemikhali, ehlukile kumavalvu esango avamile?

Amavalvu esango avamile ngokuvamile agxila emanzini avamile, isitimu kanye nendawo kawoyela, kuyilapho iveluvu yethu yesango enikezelwe ngamakhemikhali ithuthukiswa iqondiswe kumithombo yamakhemikhali ebolayo. Sithuthukisa ukukhetha kwempahla eluhlaza, ukumisa ukuvala kanye nesakhiwo sesiteshi sangaphakathi. Umzimba we-valve ujiyile ukuze umelane nokuguguleka okuphakathi; isango le-wedges kanye nendawo yokuvala yamukela ukwelashwa okuqinisa ukugqwala, isiteshi sangaphakathi esiqondile sipholishwa kahle ukuze kuncishiswe ukunamathela kwezinto kanye nokunqwabelana kwezinsalela, okugwema ngempumelelo ukucwebezela, ukukala nokuvinjwa okuvame ukubonakala kumapayipi amakhemikhali. Ingasebenza ngokuzinza nge-asidi, i-alkali, i-brine kanye noketshezi oluxutshwe namakhemikhali ahlukahlukene, ezedlula kude amavalvu esango avamile ekunqandeni ukugqwala kanye nokusebenza kwesikhathi eside okuqhubekayo.

Yiziphi izinto ongazikhetha ezitholakala embonini yamakhemikhali ama-valve esango elithile, futhi yiziphi izimo zokusebenza impahla ngayinye efanelekile?

I-WCB carbon steel ivumelana nesabelomali. Isebenza kahle ngoketshezi olugqwala kancane nezincibilikisi ezingathathi hlangothi, futhi ilingana namapayipi okulethwa kwamakhemikhali ezinga lokushisa eliphansi, ngokuvamile asetshenziselwa amapayipi asizayo ezitshalweni zamakhemikhali ezivamile.

I-CF8 (304 insimbi engagqwali) iyimpahla yethu ejwayelekile yokulwa nokugqwala. Isebenza ngokungaguquki lapho ithutha i-asidi ebuthakathaka, i-alkali ebuthakathaka kanye nezinto zokusetshenziswa zamakhemikhali zansuku zonke, futhi ivamise ukusetshenziselwa amapayipi amanzi angcolile amakhemikhali avamile.

I-CF8M (316L insimbi engagqwali) inokumelana nokugqwala okuphakeme. Ingakwazi ukubhekana ne-hydrochloric acid, ixube i-sulfuric acid, i-brine nezinye izinto ezigqwala kakhulu, ikwenze kube ukukhetha okuphezulu kwemigqa emihle yokukhiqiza amakhemikhali nemithi.

Singakwazi futhi ukwenza ngokwezifiso i-Hastelloy, i-Monel nezinye izinto ezikhethekile ze-alloy ukuze kube nezimo zokusebenza ezinzima kakhulu lapho kudingeka.

Ingabe i-valve yesango lekhemikhali isekela ukuvalwa kwe-bidirectional? Ingabe ukuvuza kuzokwenzeka ngemva kokusetshenziswa isikhathi eside?

Wonke ama-valve ethu anikezelwe ngamakhemikhali amasango asebenzisa isakhiwo sokuzivala se-wedge esiqinisiwe esivuthiwe, eqaphela ukuvala okuqinile okunokwethenjelwa kwe-bidirectional. Kungakhathaliseki ukuthi i-medium igeleza iye phambili noma ibuyele emuva ngaphakathi kwepayipi, i-valve ingagcina iqanda lingavuzi ngemva kokuvaleka ngokugcwele. Indawo evalayo isebenzisa impatho ebhekene ne-anti-corrosion hard-face, engagugi futhi imelana nokuguguleka. Inqobo nje uma isebenza ngaphakathi kwengcindezi elinganiselwe kanye nobubanzi bezinga lokushisa, i-chemical medium evamile ngeke ibangele ukwehluleka kokuvalwa ngokushesha, futhi ukusebenza kokuvala okuzinzile kungagcinwa ukukhiqizwa okuqhubekayo kwesikhathi eside.

Yimaphi amamaki okucindezela kanye nosayizi bezinga elikhona? Ingabe osayizi abenziwe ngokwezifiso abangajwayelekile bangakhiqizwa?

Amavalvu ethu asango ajwayelekile asebenzisa i-ANSI 150LB kanye ne-300LB yengcindezi ecacisiwe, osayizi bavala i-DN15 kuya ku-DN600 futhi balingana namapayipi amakhemikhali avamile ngokuqondile. Singenza ama-valve anamazinga okucindezela akhethekile namasayizi angajwayelekile ngokuwacela. Ngokusho kwendawo yakho yokufaka indawo kanye nendawo yokusebenza yangempela, imboni yethu ingaklama ama-valve esango akhethekile ukuze alingane nokuhlelwa kwamapayipi ayingqayizivele eshabhu lakho.

Yiluphi uhla lokushisa lapho la mavalvu esango embonini yamakhemikhali angasebenza ngaphakathi ngokujwayelekile?

Izinguqulo ezijwayelekile ze-PTFE zophawu oluthambile zisebenza kancane ukusuka -20℃ ukuya ku-180℃, zilungele imigqa eminingi yokukhiqiza amakhemikhali ezinga lokushisa legumbi. Izinsimbi eziqinile zensimbi zangokwezifiso zingamelana nokushisa kufika ku-450 ℃, zilungele amapayipi okusabela kwamakhemikhali asezingeni eliphezulu. Siphinde sinikeze ngezakhiwo ezikhethekile zokuvala izinga lokushisa eliphansi ezisebenzela ukulethwa kwezinto zamakhemikhali ezinoketshezi ngaphansi kwezimo ze-cryogenic.

Ungakwazi yini ukunikeza i-OEM nezinsizakalo zokwenza ngokwezifiso ze-ODM? Yiziphi izinguquko eziqondene nawe ezisekelwayo?

Sihlinzeka ngesevisi evumelana nezimo egcwele ye-OEM ne-ODM yokwenza ngokwezifiso. Singashintsha izinto ezilwa nokugqwala kwengxubevange, silungise izingxenye ezikhethekile zokuvala izinga lokushisa eliphezulu/ ezingagugi, siqophe amalogo omkhiqizo akhethekile emizimbeni yama-valve, silungise uqweqwe olungaphezulu lokugqwala, senze ngendlela oyifisayo amazinga okupakisha okuthunyelwa ngaphandle, siguqule izindinganiso zokuxhuma kwe-flange. Singakwazi ukukhiqiza ngokuphelele ama-valve ngokuqinile ngokuya ngemidwebo yakho yobunjiniyela kanye nemingcele enemininingwane yezobuchwepheshe ukufanisa izidingo zephrojekthi yamakhemikhali eyingqayizivele.

Yiziphi izitifiketi kanye nokuhlolwa kwefekthri ama-valve aqediwe azodlula kukho ngaphambi kokulethwa?

Imboni yethu iphethe izitifiketi ezisemthethweni ze-ISO, CE kanye ne-API. Yonke i-valve yesango lamakhemikhali izodlula ezivivinyweni eziqinile ngayinye ngayinye ngaphambi kokuthunyelwa: igobolondo lokuhlolwa kwengcindezi ye-hydrostatic, ukuhlolwa kokuqina kokuqina, ukuvulwa nokuvala ukuhlolwa kokukhathala kokusebenza, ukuhlolwa kwe-spectrum yezinto ezingavuthiwe ukuze kuqinisekiswe ukwakheka kwezinto. Imikhiqizo engafanelekile izoqedwa ngokuqondile, wonke ama-valve alethiwe ahlangabezana nezindinganiso zamazwe ngamazwe zokuphepha kwemishini yamakhemikhali.

Ingabe isevisi yesampula iyatholakala ukuze ihlolwe ukusebenza ngaphambi kokufakwa kwe-oda lenqwaba?

Amasampula okuhlolwa kwekhwalithi nokumelana nokugqwala ayatholakala. Amavalvu ajwayelekile esitoko angalethwa ngokushesha elabhu yakho kanye nokuhlolwa kwesivivinyo esikusayithi. Uma udinga amasampula ezinto ezikhethekile ezenziwe ngokwezifiso, sizohlela ukukhiqizwa kwesampula yeqoqo elincane, siqinisekise umjikelezo wokukhiqiza ocacile nawe kusengaphambili. Ungafaka ama-oda enqwaba asemthethweni kuphela ngemva kokuhlola nokuqinisekisa ukuthi isampula ihlangabezana nezidingo zakho zokusebenza.

Imaphi amaphuzu abalulekile okulungisa ukuze kunwetshwe impilo yesevisi yamavalvu esango akhethekile embonini yamakhemikhali?

Hlola ukuguquguquka kokusebenza kwesondo lesandla njalo, qinisekisa ukuthi isango liphakamisa kahle ngaphandle kokugxumela okubangelwa ukucwebezela okuphakathi;

Hlanza indawo yamakhemikhali eyinsalela enamathiselwe endaweni yevalvu kanye nomgudu wangaphakathi njalo ukuze ugweme ukuguguleka kokugqwala kwesikhathi eside;

Faka amafutha okuthambisa akhethekile alwa nokugqwala esiqwini sevalvu ngezikhathi ezithile, vimbela ukugqwala nokugoqa kwesiqu;

Vimbela ngokuqinile ukucindezela ngokweqile nokusebenza kwezinga lokushisa ngokweqile ngale kwemingcele elinganiselwe yevalvu;

Vala i-valve ngokuqinile ngesikhathi sokuvala isikhathi eside ukuze ugweme indawo ebolayo ukucwilisa indawo yokuvala isikhathi eside.

Yiziphi izimo zemboni yamakhemikhali lawa mavalvu esango asetshenziswa kakhulu kuwo?

Asetshenziswa kabanzi emigqeni emihle yokukhiqiza amakhemikhali, amapayipi e-petrochemical, ukucutshungulwa kwamakhemikhali ekhemikhali, ukugcinwa nokuthuthwa kwamakhemikhali aluhlaza, ukuhlanzwa kwamanzi angcolile ngamakhemikhali, ukukhiqizwa kukamanyolo, ukucutshungulwa kwezinto ezintsha kanye namanye amaphrojekthi amakhemikhali ajwayelekile.