IValve yeSango eliKhethekileyo loShishino lweMichiza

Singumenzi wevalvu oqeqeshiweyo obambe iziqinisekiso ze-ISO, API kunye ne-CE. Sinezixhobo eziphambili zemveliso kunye neseti epheleleyo yeenkqubo zokulawula umgangatho. Sikwamkele iiodolo ze-OEM kunye ne-ODM, kunye nobungakanani obuncinci bokuodola. Iivalvu zethu zekhemikhali ezixhathisa ukubola zithunyelwa kwihlabathi liphela kwaye ziphumelela ukuqondwa ngokubanzi kubathengi beshishini lemichiza.

Iimpawu eziphambili

Zeziphi iimpawu ezikhethekileyo zoluShishino lweMichiza oluKhethekileyo lweSango iValve, eyahlukileyo kwiivalvu eziqhelekileyo zesango?

Iivalvu zesango eziqhelekileyo ubukhulu becala zijolisa kumanzi aqhelekileyo, umphunga kunye nendawo ye-oyile, ngelixa ivalve yethu yesango yeekhemikhali iphuculwe ijolise kumajelo eendaba ekhemikhali eyonakalisayo. Siphucula ukhetho lwempahla ekrwada, ukucwangciswa kokutywinwa kunye nesakhiwo setshaneli yangaphakathi. Umzimba wevalvu ujiyile ukuxhathisa ukhukuliseko oluphakathi; Isango le-wedge kunye nomphezulu wokutywina wamkela unyango lokuqiniswa kwe-anti-corrosion, umjelo wangaphakathi othe ngqo ugudiswe kakuhle ukunciphisa ukunamathela kwezinto kunye nokuqokelela kweentsalela, ezithintela ngokufanelekileyo i-crystallization, ukulinganisa kunye nokuvalwa okuhlala kubonwa kwimibhobho yekhemikhali. Inokusebenza ngokuzinzileyo ngeasidi, ialkali, ibrine kunye nolwelo olwahlukeneyo lwekhemikhali oluxutyiweyo, lugqithise kakhulu iivalvu zesango eziqhelekileyo ezichasene nokubola kunye nokusebenza okuthe gqolo kwexesha elide.

Ziziphi izinto eziphathekayo ezifumanekayo kushishino lweekhemikhali iivalvu zesango ezikhethekileyo, kwaye zeziphi iimeko zokusebenza ezifanelekileyo kwizinto eziphathekayo?

I-WCB carbon steel ilungele uhlahlo lwabiwo-mali. Isebenza kakuhle ngolwelo olunoburharha obuthambileyo kunye nezinyibilikisi ezingathathi hlangothi, kwaye ilingana nemibhobho yokuhanjiswa kweekhemikhali ezinobushushu obuphantsi, edla ngokusetyenziswa kwimibhobho encedisayo kwizityalo zekhemikhali eziqhelekileyo.

CF8 (304 steel stainless) yimathiriyeli yethu yomgangatho wokuchasana nomhlwa. Isebenza ngokuthe gqolo xa ithutha iasidi ebuthathaka, ialkali ebuthathaka kunye nemathiriyeli ekrwada yeekhemikhali zemihla ngemihla, kwaye iyamkelwa rhoqo kwimibhobho yamanzi amdaka ekhemikhali.

I-CF8M (i-316L yentsimbi engatyiwayo) iyazidla ngokuxhathisa ukugqwesa okuphezulu. Iyakwazi ukumelana ne-hydrochloric acid, i-dilute sulfuric acid, i-brine kunye nezinye izinto eziyingozi kakhulu, iyenza ibe yeyona nto iphambili yokukhetha imichiza emihle kunye nemigca yokuvelisa amayeza.

Sinokwenza ngokwezifiso i-Hastelloy, iMonel kunye nezinye izixhobo ezikhethekileyo ze-alloy ukwenzela iimeko zokusebenza ezinzima ze-ultra-corrosive kwimfuno.

Ngaba ivalve yesango lekhemikhali iyakuxhasa ukutywinwa kwe-bidirectional? Ngaba ukuvuza kuya kwenzeka emva kokusetyenziswa kwexesha elide?

Zonke iivalvu zethu zeekhemikhali ezinikezelweyo zesango zisebenzisa i-wedge esele ikhulile eyomeleziweyo yokuzitywina, iqonda ukuba ukuvalwa okuqinileyo kwe-bidirectional. Nokuba isiphakathi siya phambili okanye sibuya umva ngaphakathi kombhobho, isivalo sinokugcina iqanda lingavuzi emva kokuba livalwe ngokupheleleyo. Umphezulu wokutywina usebenzisa i-anti-corrosion-hard-face treatment, engagugiyo kunye ne-rosion-resistant. Ngethuba nje isebenza ngaphakathi koxinzelelo olulinganisiweyo kunye noluhlu lweqondo lokushisa, i-medium yekhemikhali eqhelekileyo ayiyi kubangela ukungaphumeleli kokutywinwa ngokukhawuleza, kunye nokusebenza kokutywinwa okuzinzileyo kunokugcinwa kwimveliso eqhubekayo yexesha elide.

Ngawaphi amabakala oxinzelelo kunye neesayizi zecaliber ezikhoyo? Ngaba ubungakanani obungengomgangatho obulungiselelweyo bunokuveliswa?

Iivalvu zethu zesango eziqhelekileyo zisebenzisa i-ANSI 150LB kunye ne-300LB yoxinzelelo, ubungakanani bugubungela i-DN15 ukuya kwi-DN600 kwaye ihambelana ngqo nemibhobho yeekhemikhali yesiqhelo. Sinokwenza iivalvu ezinamaqondo akhethekileyo oxinzelelo kunye nobukhulu obungaqhelekanga xa siceliwe. Ngokwendawo yakho yofakelo lwendawo kunye nendawo yokusebenza yokwenyani, umzi-mveliso wethu unokuyila iivalvu zesango ezikhethekileyo ukuze zilingane kwiworkshop yakho yolungiselelo lombhobho owodwa.

Loluphi uluhlu lobushushu olunokuthi ezi valves zesango ezithile zemichiza zisebenze ngaphakathi ngokuqhelekileyo?

Iinguqulelo eziqhelekileyo ze-PTFE zetywina ezithambileyo zisebenza ngokuthe chu ukusuka -20℃ ukuya kwi-180℃, ilungele uninzi lwemigca yokuvelisa imichiza yobushushu begumbi. Intsimbi yesiko eqinileyo etywiniweyo inokumelana nobushushu ukuya kuthi ga kwi-450 ℃, ilungele imibhobho yokusabela kweekhemikhali ezinobushushu obuphezulu. Sikwanikezela ngezakhiwo ezikhethekileyo zokutywina eziphantsi kobushushu ezisebenzela ukuhanjiswa kwezixhobo zeekhemikhali ezinolwelo phantsi kweemeko ze-cryogenic.

Ngaba unokubonelela ngeenkonzo ze-OEM kunye ne-ODM? Loluphi uhlengahlengiso olwenziweyo oluxhaswayo?

Sinikezela ngenkonzo eguquguqukayo epheleleyo ye-OEM kunye ne-ODM. Singakwazi ukuthatha indawo yezixhobo ezichasene nomhlwa, simisele ubushushu obuphezulu / ukunxitywa kweendawo ezikhethekileyo zokutywina, sikrole iilogo zophawu olukhethekileyo kwimizimba yevalvu, sihlengahlengise i-anti-corrosion coating, senze ngokwezifiso imigangatho yokupakisha kumazwe angaphandle, sitshintshe imigangatho yonxibelelwano lweflange. Sinokuvelisa ngokupheleleyo iivalvu ngokungqongqo ngokwemizobo yakho yobunjineli kunye neeparitha ezineenkcukacha zobugcisa ukuhambelana neemfuno zeprojekthi yeekhemikhali ezizodwa.

Zeziphi iziqinisekiso kunye nokuhlolwa kwefektri eziya kudlula iivalvu ezigqityiweyo ngaphambi kokuhanjiswa?

Umzi-mveliso wethu uphethe iziqinisekiso ezisemthethweni ze-ISO, i-CE kunye ne-API. Yonke ivalve yesango lekhemikhali iya kudlula kuvavanyo olungqongqo nganye nganye ngaphambi kokuthunyelwa: uvavanyo lwe-shell hydrostatic yoxinzelelo, ukutywina uvavanyo lokuqina, ukuvulwa kunye nokuvala uvavanyo lokudinwa kokusebenza, uhlolo lwezixhobo ezikrwada ukuqinisekisa ukubunjwa kwezinto. Iimveliso ezingafanelekanga ziya kupheliswa ngokuthe ngqo, zonke iivalvu ezihanjiswayo ziyahlangabezana nemigangatho yokhuseleko lwezixhobo zeekhemikhali zamazwe ngamazwe.

Ngaba inkonzo yesampulu iyafumaneka kuvavanyo lokusebenza phambi kokubekwa kweeodolo ezininzi?

Iisampulu zomgangatho kunye novavanyo lokumelana nomhlwa ziyafumaneka. Iivalvu eziqhelekileyo ezisesitokhweni zinokuhanjiswa ngokukhawuleza kwilebhu yakho kunye novavanyo lovavanyo lwendawo. Ukuba ufuna iisampulu eziphathekayo ezikhethekileyo, siya kulungiselela imveliso yesampulu encinci, siqinisekise umjikelo ocacileyo wemveliso kunye nawe kwangaphambili. Ungabeka iiodolo ezininzi ezisemthethweni kuphela emva kokuba uvavanye kwaye uqinisekise ukuba isampulu iyahlangabezana neemfuno zakho zokusebenza.

Zeziphi ezona ndawo zingundoqo zogcino lwesiqhelo ukwandisa ubomi benkonzo yoshishino lweekhemikhali iivalvu zesango ezikhethekileyo?

Jonga ukuguquguquka kokusebenza kwevili lesandla rhoqo, qinisekisa ukuba isango liphakamisa kakuhle ngaphandle kwe-jamming ebangelwa yicrystallization ephakathi;

Coca indawo eshiyekileyo yeekhemikhali encanyathiselwe kumphezulu wevalvu kunye nomjelo wangaphakathi rhoqo ukuthintela ukhukuliseko lwexesha elide;

Yongeza igrisi ekhethekileyo yokuthambisa i-anti-corrosion kwisiqu sevalve ngamaxesha athile, uthintele umhlwa kunye ne-stem clamping;

Ukuthintela ngokungqongqo uxinzelelo kunye nokusebenza ngokugqithisileyo kweqondo lobushushu ngaphaya kweeparamitha ezilinganiselweyo zevalve;

Vala ivalve ngokuqinileyo ngexesha lokuvalwa kwexesha elide ukunqanda indawo engcolisayo emanzisa umphezulu wokutywina ixesha elide.

Zeziphi iimeko zoshishino lwekhemikhali ezi zivalo zesango zisetyenziswa kakhulu kuzo?

Zisetyenziswa ngokubanzi kwimigca yokuvelisa imichiza emihle, imibhobho yepetrochemical, ukusetyenzwa kweekhemikhali zamayeza, ukugcinwa kwemathiriyeli ekrwada kunye nokuthuthwa kweekhemikhali, ukucocwa kwamanzi amdaka ngemichiza, ukwenziwa kwezichumiso, ukusetyenzwa kwezinto ezintsha kunye nezinye iiprojekthi zemichiza eqhelekileyo.