Kwi-workshop yaseJinbin, ezintathu ezenziwe ngokwezifisoiivalvu zeglasikuba abathengi sele beza kugqitywa. Abasebenzi baqhuba inkqubo yokugqibela kuzo. Ezi zi-fanivalvu eyimfama emile okwesibukosenobukhulu be-DN1450, exhotyiswe ngesixhobo sombane. Baye bavavanywa ngokuqatha koxinzelelo kunye novavanyo lokuvula nokuvala kwaye balinde ukupakishwa nokuthunyelwa.

Ivalvu yeplati ye-blind yecandelo elikhulu enobubanzi obuyi-DN1000 nangaphezulu zizixhobo eziphambili ezenzelwe ukuhlangabezana neemfuno zokwahlulwa kweenkqubo zepayipi ezinobubanzi obukhulu kakhulu.

Ngokuphathelele iingenelo, eyokuqala kukusebenza kwayo okubalaseleyo kokutywina. Olu hlobo lwevalvu lusebenzisa kakhulu isakhiwo sokutywina esiphindwe kabini se-"elastic seal + metal hard seal", esisenokungafumani manzi nangaphantsi kobubanzi obukhulu be-DN1000 nangaphezulu. Ifanelekile ngokukodwa kwiimeko ezineemfuno ezingqongqo zokutywina ezifana negesi kunye neendaba ezinobuthi, ziphepha ingxaki yamandla angalinganiyo kumphezulu wokutywina obangelwa bububanzi obukhulu.

Okwesibini, isebenza kakuhle kakhulu kwaye kulula ukuyisebenzisa. Isakhiwo esimile njengefeni sincinci kunesitrato sendabuko esingaboniyo, kwaye ubunzima baso yi-60% kuphela yobo bevalvu yesango enobubanzi obufanayo. Ingadityaniswa nezixhobo zombane kunye ne-pneumatic drive ukuze kuvulwe kwaye kuvalwe kude, kusonjululwe ingxaki yokusebenza nzima ngesandla kweevalvu ezinkulu. Ixesha lokuvula nokuvala kwevalvu enye lidla ngokulawulwa kwimizuzwana engama-30, nto leyo ephucula kakhulu ukusebenza kakuhle.

Ngaphezu koko, inokhuseleko oluqinileyo, ixhotyiswe ngezixhobo zokutshixa ngoomatshini kunye neeswitshi ezithintela ukungasebenzi kakuhle. Umzimba wevalvu engaboniyo wenziwe ngentsimbi eqinileyo okanye iipleyiti zentsimbi ezidityanisiweyo, ezinokumelana noxinzelelo oluphezulu (ngesiqhelo ukuya kuthi ga kwi-1.6MPa) kunye nefuthe, kwaye zifanelekile kwiimeko zokusebenza ezinzima. Ukongeza, iindleko zokugcina ziphantsi. Izixhobo zokuvala zinokuqhekeka kwaye zitshintshwe ngokwahlukeneyo ngaphandle kwesidingo sokuqhaqha yonke ipayipi. Ifanelekile ngokukodwa kwiimeko zemveliso eqhubekayo kwiinkqubo zepayipi ezinkulu apho "ukuvalwa kuthetha ukulahlekelwa".

Iimeko zokusetyenziswa zigxile kakhulu kwiindawo eziphambili ezifuna izahlulo ezinkulu: Kwinjineli yegesi kamasipala, isetyenziswa rhoqo kwiipayipi eziphambili zenethiwekhi zegesi yendalo zasezidolophini ezinobubanzi obuqala kwi-DN1200 ukuya kwi-DN2000, ukufezekisa izahlulo zokhuseleko ngexesha lokugcinwa kwemibhobho kunye noqhagamshelo lwamasebe, kuthintelwe ukucima kwegesi okukhulu. Kwiiyunithi ze-aerospace kunye ne-vacuum distillation kunye neeyunithi ze-catalytic cracking zoshishino lwe-petrochemical, iipayipi eziphambili zokuthutha ioyile eluhlaza kunye neemveliso zeoyile ecociweyo ezinobubanzi obungaphezulu kwe-DN1000 kufuneka zitshintshe iinkqubo rhoqo okanye zihlukanise izixhobo.

Iimpawu zazo zokuvula nokuvala ngokukhawuleza zinokunciphisa ixesha lokuphazamiseka kwemveliso. Kwiinkqubo zokususa i-sulfurization/denitrification ezimanzi kwishishini lamandla, ifanelekile kwiipayipi eziphambili zegesi ye-flue ezinobubanzi be-DN1500 nangaphezulu, kwaye ingakwazi ukwahlula igesi ye-flue enobushushu obuphezulu (enokumelana nobushushu obufikelela kwi-300℃) ngexesha lokugcinwa kwe-reactor. Inkqubo yokususa uthuli olomileyo lwegesi ye-blast furnace kwishishini le-metallurgical ifuna ukuba iipayipi zokuhambisa igesi ezinobubanzi be-DN1200 nangaphezulu zikwazi ukumelana nokukhukuliseka kwemidiya equlethe uthuli. Ulwakhiwo lwayo lwentsimbi eqinileyo lunokusebenza ngokuzinzileyo ixesha elide.

Njengomvelisi we-metallurgical valves oneminyaka engama-20 ubudala (i-Electric Blind Valve), i-Jinbin Valves inika abathengi izisombululo zokulawula ulwelo ezikumgangatho ophezulu kunye nenkonzo yomntu ngamnye. Ukuba unemibuzo enxulumene noko, nceda unxibelelane nathi apha ngezantsi kwaye uya kufumana impendulo kwiiyure ezingama-24!