Saint-Gobain Seals' OmniSeal mai ƙarfin busa mai ƙarfin bazara an ƙware a matsayin hatimi mai tsayi a cikin injin roka na masana'antar sararin samaniya.
Bawul ɗin dubawa shine na'urar sarrafa kwararar ruwa wanda kawai ke ba da izinin ruwa mai matsa lamba (ruwa ko iskar gas) don gudana ta hanya ɗaya. A cikin aiki na yau da kullun, bawul ɗin rajistan yana cikin rufaffiyar wuri inda hatimin ke aminta da hatimin a tsaye wanda aka ƙera don jure duk wani busa. Da zarar matsa lamba ruwan ya kai ko ya wuce matsi mai ƙima, bawul ɗin yana buɗewa kuma yana ba da damar ruwa don canjawa daga babban matsi zuwa gefen ƙananan matsa lamba. Matsalolin da ke ƙasa da matsa lamba zai sa bawul ɗin ya koma wurin da yake rufe. Duba bawul suma sun zama ruwan dare a masana'antar mai da iskar gas, da kuma a cikin famfuna, sarrafa sinadarai, da aikace-aikacen canja wurin ruwa.
A mafi yawan lokuta, injiniyoyin ƙira za su haɗa bawul ɗin bincike cikin ƙirar injin rokansu. Don haka, rawar da hatimai ke takawa a cikin waɗannan kofuna na da mahimmanci a cikin dukkan aikin ƙaddamarwa. Ana amfani da hatimin hana zubar da ciki a cikin bawul ɗin dubawa don kiyaye ruwa mai ƙarfi a gefen matsa lamba yayin hana hatimin fesa daga cikin gidaje. A cikin yanayin babban matsin lamba da saurin matsa lamba a fadin farfajiyar rufewa, yana da ƙalubale sosai don kiyaye hatimin a cikin gidansa. Da zarar saman hatimi mai ƙarfi na kayan aikin ya rabu da leɓen hatimin, hatimin yana da yanayin busa daga gidan saboda ragowar matsa lamba a kusa da hatimin. A al'ada, duba bawul suna amfani da hatimin wurin zama (súƙaƙƙen PTFE tubalan), amma aikin waɗannan hatimin bai dace ba, kuma bayan lokaci, hatimin wurin zama zai zama nakasu na dindindin, wanda zai haifar da zubewa.
Abubuwan da ke tabbatar da fashewar Seals na Saint-Gobain Seals an samo su ne daga gininsa na OmniSeal 103A kuma ya ƙunshi jaket ɗin polymer tare da mai kuzarin bazara. Harsashi na waje an yi shi da kayan Fluoroloy na mallakarsa, yayin da aka yi bazara da bakin karfe da kayan Elgiloy®. Dangane da yanayin aiki na bawul ɗin dubawa, ana iya amfani da tsari na musamman don zafi da tsaftace bazara. Hoton da ke gefen hagu yana nuna misalin mai hana busawa na al'ada wanda Saint-Gobain ke amfani da shi a cikin aikace-aikacen sandar hatimi (bayanin kula: wannan hoton ya bambanta da ainihin hatimin da aka yi amfani da shi a cikin aikace-aikacen bawul ɗin rajistan, wanda aka tsara na al'ada). Hatimai a cikin aikace-aikacen bawul ɗin rajista na iya aiki a ƙananan zafin jiki har zuwa 575°F (302°C) kuma yana iya jure matsi har zuwa 6,000 psi (masha 414).
Manufar OmniSeal-hujja-hujja hatimi ga roka injin duba bawul shi ne don hatimi matsa lamba gas da kuma ruwa gas a yanayin zafi kasa -300°F (-184°C) zuwa 122°F (50°C). Matsin hatimin yana kusa da 3,000 psi (bar 207). Kayan sheath na Fluoroloy® yana da kyakkyawan juriya na lalacewa, juriya na lalacewa, ƙarancin juzu'i da ƙarancin zafin jiki. OmniSeal® anti-leak like an ƙera su don yin ɗaruruwan zagayowar aiki ba tare da zubewa ba.
Layin samfurin OmniSeal® yana da ƙira iri-iri, kamar 103A, APS, Spring Ring II, 400A, RP II da RACO ™ 1100A, da ƙira iri-iri na al'ada. Waɗannan ƙirƙira sun haɗa da riguna iri-iri na fluorine da ke rufe hannayen riga da tsarin maɓuɓɓugan ruwa daban-daban. An yi amfani da mafitacin rufewar Saint-Gobain Seals wajen harba motoci kamar injin roka na Atlas V (wanda ke ƙaddamar da Mars Rover Curiosity zuwa sararin samaniya), roka na Delta IV Heavy da rokoki na Falcon 9. Hakanan ana amfani da hanyoyin magance su a wasu masana'antu (man fetur da iskar gas, kera motoci, kimiyyar rayuwa, lantarki da masana'antu), da kuma kayan aikin sarrafa rini na masana'antu masu dacewa da muhalli, famfun alluran sinadarai, ɗaya daga cikin tashoshin matsawa iskar gas na ƙarƙashin teku na farko a duniya da masu nazarin sinadarai aikace-aikacen aji. .
Lokacin aikawa: Fabrairu-25-2021
