Ama-valve encyclopedia ama-cryvenic ama-cryves ezicelo ze-LNG

Iwebhusayithi ye-Plumbing Valve

Izici zemboni yokuthumela

Indawo yemikhumbi i-minimalist kakhulu. Ngenxa yalokho, Kunesikhala esincane kakhulu ebhodini. Ama-opharetha kufanele anciphise usayizi ukwenza ithangi legesi lincane ngangokunokwenzeka. Lokhu bakwenza ngokufaka igesi yemvelo (Lng, Igesi yemvelo evunguliwe). Ngokuyipholisa cishe iphuzu lapho igesi yemvelo iba uketshezi. Emazingeni okushisa angu -165 ° C, I-valve eyinhloko yokwehlukaniswa kumele isebenze.

Okuthinta ukwakheka kwe-valve?

Izinga lokushisa linomthelela obalulekile ekwakhiweni kwe-valve. Ngokwesibonelo, Abasebenzisi bangase bakudinge ezindaweni ezishisayo ezinjenge-Middle East. Noma, Kungase kube lula ngezindawo ezibandayo njengezilwandle ezinamakhaza. Zombili lezi zindawo zingathinta ukubekwa uphawu nokuqina kwe-valve. Izakhi zalezi zivabu zifaka umzimba we-valve, ikhala lemoto, isiqu, isigaxa se-stem, I-Ball valve nesihlalo. Ngenxa yokwakheka kwabo kwezinto ezibonakalayo, Lezi zingxenye zandise futhi zinenkontileka emazingeni okushisa ahlukene.

Izinketho zokushisa okushisa okuphansi

Ukukhetha 1.
Ama-opharetha asebenzisa ama-valves ezindaweni ezibandayo, njengama-rigs kawoyela emanzini ama-polar.

Ukukhetha 2.
Opharetha basebenzisa ama-valves okuphatha uketshezi emazingeni okushisa aphansi ngaphansi kokuqina.

Endabeni yamagesi avuthayo kakhulu, njengegesi yemvelo noma umoya-mpilo, I-valve kumele futhi isetshenziswe kahle uma kwenzeka umlilo.

Izinkinga Zokucindezela

Kukhona ukunqwabelana kwengcindezi ngesikhathi sokuphathwa okujwayelekile kwesiqandisi. Lokhu kungenxa yokwanda kokushisa okukhona kanye nokwakheka kwe-vapor okulandelayo. Ukunakekelwa okukhethekile kudinga ukuthathwa ekwakhiweni kohlelo lwe-valve / lwamapayipi. Lokhu kuvumela ukwakheka kwengcindezi.

Izinkinga zokushisa

Izinguquko zokushisa eziphakeme zingathinta isisebenzi nokuphepha kwezitshalo. Ingxenye ngayinye ye-cryogenic valve iyanda kanye nezinkontileka ngamanani ahlukene ngenxa yezingoma ezahlukene zezinto ezibonakalayo kanye nobude besikhathi ababekwa ngaphansi kwesiqandisi.

Enye inkinga enkulu lapho ukuphathwa kwesiqandisi ukwanda kokushisa kusuka endaweni ezungezile. Lokhu kuphakama kokushisa yizona abakhiqizi besizathu ukuhlukanisa ama-valve namapayipi.

Ngaphezu kwebanga lokushisa eliphakeme, Ama-valves kumele abhekane nezinselelo ezinkulu. Nge-helium e-liquefied, Izinga lokushisa likaphethiloli liwela ku-270 ° C.

Inkinga yokusebenza

Ngokuqondile, Uma izinga lokushisa lehla liye ku-zero ngokuphelele, umsebenzi we-valve uba yinselele enkulu. I-cryogenic valve ixhuma ipayipi kugesi owuketshezi emvelweni. Kwenza njalo ekushiseni okukhona. Umphumela ungaba umehluko wokushisa ofinyelela ku-300 ° C phakathi kwepayipi nemvelo.

Izinkinga ezisebenzayo

Umehluko wokushisa udala ukugeleza kokushisa kusuka endaweni efudumele kuya endaweni ebandayo. Kungalimaza umsebenzi ofanele wama-valves. Kunganciphisa futhi ukusebenza kahle kohlelo ezimweni ezimbi kakhulu. Lokhu kukhathaza ikakhulukazi uma ama-Ice aphela ekugcineni okufudumele.

Nokho, Le nqubo yokushisa nje yokushisa nayo isetshenziswa ngamabomu ezicelo zokushisa okuphansi. Le nqubo isetshenziselwa ukuvala isiqu se-valve. Ngokuvamile, Iziqu ze-Valve zivalwe ngopulasitiki. Lezi zinto zokwakha azikwazi ukumelana namazinga okushisa aphansi, Kepha uphawu lwensimbi olusebenzayo lwezakhi ezimbili ezihamba kakhulu ngezindlela ezihlukile zibiza kakhulu futhi cishe akunakwenzeka.

Izinkinga zokubopha uphawu

Kunekhambi elilula kakhulu kule nkinga. Uletha ipulazi elisetshenziselwa ukuvala isitebhisi se-valve endaweni lapho izinga lokushisa lijwayelekile. Lokhu kusho ukuthi i-sealant yesiqu se-valve kufanele igcinwe kude kusuka ku-fluid.

I-hood yenjini ifana nepayipi. Uma uketshezi luphuma ngalesi sithelo, Kuzofudumala kusuka ngaphandle. Lapho uketshezi lufinyelela ku-stem sealant, Kusekushiseni okukhona futhi kungokwaseGaseous. Injini hood ibuye ivimbele isibambo kusuka ekuqandeni futhi ayiqali.

Inselelo kuPhawu! Kunekhambi elilula kakhulu kule nkinga! Uletha ipulazi elisetshenziselwa ukuvala isitebhisi se-valve endaweni lapho izinga lokushisa lijwayelekile. Lokhu kusho ukuthi i-sealant yesiqu se-valve kufanele igcinwe kude kusuka ku-fluid.

Ukukhetha i-valve yesevisi yokushisa ephansi

Ukukhetha ama-valves ezicelo ze-cryogenic kungaba yinkimbinkimbi. Abathengi kumele bacabangele zombili izimo zomkhumbi nezimo zokutshala. Na-, Izakhiwo ezithile ze-cryogenic fluids zidinga ukusebenza kwe-valve ethile. Ukukhetha kahle kuqinisekisa ukuthembeka kwesitshalo, Ukuvikelwa Kwemishini nokuphepha okusebenzayo. Kunemiklamo emibili eyi-valve esetshenziswa emakethe ye-LNG yomhlaba.

Idizayini ye-Valve yemakethe ye-Global Lng

I-valve eqinile ejikelezayo eqinile

Lezi zinzuzo zivumela i-valve ukuthi ivule futhi ivale. Basebenza ngokuxabana okuncane kakhulu nokuhlikihla. Enye yezinselelo zesitoreji se-LNG iyimithambo eboshwe ngaphansi. Kulezi zimbobo, Uketshezi ungakhulisa ngokuqhubekayo ngaphezu kwalokho 600 Izikhathi. I-valve ejikeleza emithathu eqinile yedwa isusa le nselelo.

Ama-valves angenangqondo futhi aphindwe kabili

Lawa ma-valves ayizinto ezibucayi emishini ye-liquefaction ngoba zivimbela ukulimala okubangelwa ukuguqulwa kwe-flow. Izinto ezibonakalayo nosayizi zibalulekile ukucatshangelwa, Njengoba ama-cryvenic valves abiza kakhulu. Imiphumela ye-valve esayizi engalungile ingaba yingozi.

Unjiniyela angaqinisekisa kanjani ukuthi i-valve ye-cryogenic iboshwe?

Ukuvuza kuyabiza kakhulu lapho umuntu ebheka izindleko zokwenza igesi zibe yisiqandisini kuqala. Kuyingozi futhi.

Inkinga enkulu ngobuchwepheshe beCryvenic yithuba lokuvuza kwesihlalo se-valve. Abathengi bavame ukubukela phansi ukukhula okubanzi nokuqondile kwesiqu maqondana nomzimba. Uma umthengi ekhetha i-valve efanelekile, bangazigwema lezi zinkinga.

Ngincoma ukusebenzisa i-valve ye-cryogenic eyenziwe ngensimbi engenacala. Lokhu kuphendula kahle ku-gradients yokushisa ngesikhathi sokusebenza ngamagesi ashubile. I-valve ye-cryogenic kufanele yenziwe ngezinto ezifanele zokubopha uphawu ngophawu kuze kube 100 nqabela.

Ngaphezu kwalokho, Ukunwetshwa kwe-bonnet kuyisici esibaluleke kakhulu njengoba kunquma ukubekeka kwe-valve stem sealant.