Itywina le-OmniSeal entwasahlobo eqinisekisa ukuqhuma kwe-Saint-Gobain Seals ichongiwe njengetywina elimi kwi-injini yokukhangela i-rocket kwishishini le-aerospace.
I-valve yokutshekisha isixhobo sokulawula ukuhamba esivumela kuphela i-pressurized fluid (ulwelo okanye igesi) ukuba ihambe kwicala elinye. Kumsebenzi wesiqhelo, ivalve yokukhangela ikwindawo evaliweyo apho itywina ikhuselwe ngamatywina amileyo ayilelwe ukumelana nakuphi na ukuvuthela. Emva kokuba uxinzelelo lwe-fluid lufike okanye lugqithise uxinzelelo olulinganisiweyo, i-valve ivula kwaye ivumela ulwelo ukuba lutshintshe ukusuka kwicala loxinzelelo oluphezulu ukuya kwicala eliphantsi loxinzelelo. Ukuhla koxinzelelo ngaphantsi koxinzelelo lwe-threshold kuya kubangela ukuba i-valve ibuyele kwindawo yayo evaliweyo. Iivalvu zokutshekisha zikwaxhaphakile kushishino lweoyile negesi, nakwiimpompo, ukusetyenzwa kweekhemikhali, kunye nezicelo zokudlulisa ulwelo.
Kwiimeko ezininzi, iinjineli zoyilo zidibanisa iivalvu zokutshekisha kuyilo lwe-injini yerokethi. Ke ngoko, indima yamatywina kwezi ntlambo ibaluleke kakhulu kulo lonke uphulo lokuqaliswa. Isitywina sokuthintela ukuvuthela sisetyenziswa kwivalve yokutshekisha ukugcina ulwelo olucinezelekileyo kwicala loxinzelelo oluphezulu ngelixa ukhusela isitywina ekutshizeni ngaphandle kwendlu. Ngaphantsi koxinzelelo oluphezulu kunye neenguqu ezikhawulezayo zokutywinwa koxinzelelo lwangaphezulu, kunzima kakhulu ukugcina itywina kwizindlu zayo. Nje ukuba indawo yokutywina eguquguqukayo ye-hardware yahlulwe kumlebe wokutywina, isitywina sinokuvuthelwa kude nendlu ngenxa yoxinzelelo olushiyekileyo olujikeleze itywina. Ngokuqhelekileyo izitywina zezihlalo, iibhloko ze-PTFE ezilula, zisetyenziselwa ukujonga iivalvu, kodwa ukusebenza kwezi zitywina akuhambelani. Ngokuhamba kwexesha, izitywina zezihlalo ziya konakala ngokusisigxina, zibangele ukuvuza.
Izitywina ezingqiniweyo zeSaint-Gobain Seals zithathwe kuqwalaselo lwayo lwe-OmniSeal 103A kwaye luqulathe ibhatyi yepolymer ene-spring energizer. I-sheath yenziwe ngezinto eziphathekayo ze-Fluoroloy, ngelixa intwasahlobo ingenziwa ngezinto ezifana nensimbi engenasici kunye ne-Elgiloy®. Ngokweemeko zokusebenza kwe-valve yokutshekisha, intwasahlobo ingaphathwa ngokushushu kwaye ihlanjululwe yinkqubo ekhethekileyo. Umfanekiso osekhohlo ubonisa umzekelo wokutywinwa okuchasene nokuvuthululwa kwetywina kwiimpawu eziqhelekileyo zeSaint-Gobain kwi-rod seal applications (qaphela: lo mfanekiso wahlukile kwiimpawu ezisetyenziswe kwi-ivalve ye-check valve yangempela, eyilwe ngokwezifiso). Khangela izicelo zevalve Iitywina ngaphakathi zingasebenza kuluhlu oluphantsi lobushushu ukuya kwi-575 ° F (302 ° C) kwaye lunokumelana noxinzelelo ukuya kwi-6,000 psi (414 bar).
Itywina le-OmniSeal-proof-proof seal esetyenziswa kwiivalvu zokujonga injini yerokethi isetyenziselwa ukutywina igesi enoxinzelelo kunye nerhasi enyibilikisiweyo kuluhlu lobushushu obungaphantsi -300°F (-184°C) ukuya kwi-122°F (50°C). Isitywina sinokumelana noxinzelelo olusondeleyo kwi-3,000 psi (207 bar). Imathiriyeli ye-Fluoroloy® sheath inokumelana okugqwesileyo kokunxiba, ukuchasana ne-deformation, i-coefficient ephantsi ye-friction kunye nokukwazi ubushushu obugqithisileyo. I-OmniSeal® Blowout Prevention Seals ziyilelwe ukuba ziqhube amakhulu emijikelo ngaphandle kokuvuza.
Umgca wemveliso we-OmniSeal® unikezela ngeendlela ezahlukeneyo zoyilo, ezifana ne-103A, i-APS, i-Spring Ring II, i-400A, i-RP II kunye ne-RACO™ 1100A, kunye neendlela ezahlukeneyo zokuyila. Olu luyilo lubandakanya imikhono yokutywina yezinto ezahlukeneyo ze-fluorine alloy kunye nemithombo yoqwalaselo olwahlukeneyo. Izisombululo zokutywinwa kwe-Saint-Gobain Seals zisetyenzisiwe ekuqaliseni izithuthi ezifana ne-injini ye-rocket ye-Atlas V (ukuthumela i-Curiosity Mars rover kwindawo), i-rocket enzima ye-Delta IV kunye ne-Falcon 9 rocket. Izisombululo zabo zikwasetyenziswa nakwamanye amashishini (i-oyile negesi, iimoto, isayensi yobomi, i-elektroniki kunye neshishini) kunye nokusingqongileyo kunye nezixhobo zenkqubo yokudaya yemizi-mveliso, iimpompo zesitofu sekhemikhali, isikhululo sokuqala sokucinezela igesi engaphantsi kolwandle kunye nabahlalutyi bemichiza, njl njl.
Ixesha lokuposa: Sep-04-2021
