Liquid hydrogen yana da wasu fa'idodi a cikin ajiya da sufuri.Idan aka kwatanta da hydrogen, ruwa hydrogen (LH2) yana da girma mai yawa kuma yana buƙatar ƙananan matsa lamba don ajiya.Duk da haka, hydrogen ya zama -253 ° C don zama ruwa, wanda ke nufin yana da wuyar gaske.Matsananciyar ƙarancin zafi da haɗarin ƙonewa suna sanya hydrogen ruwa ya zama matsakaici mai haɗari.Saboda wannan dalili, tsauraran matakan tsaro da babban abin dogaro sune buƙatu marasa daidaituwa lokacin zayyana bawuloli don aikace-aikacen da suka dace.
Daga Fadila Khelfaoui, Frédéric Blanquet
Velan bawul (Velan)
Aikace-aikace na ruwa hydrogen (LH2).
A halin yanzu, ana amfani da ruwa hydrogen kuma ana ƙoƙarin yin amfani da shi a lokuta daban-daban na musamman.A cikin sararin samaniya, ana iya amfani da shi azaman mai harba roka kuma yana iya haifar da girgizar igiyoyin ruwa a cikin ramukan iska.An goyi bayan "babban kimiyya," hydrogen ruwa ya zama mabuɗin abu a cikin tsarin sarrafa abubuwa, masu kara kuzari, da na'urorin haɗakar nukiliya.Yayin da sha'awar mutane na ci gaba mai dorewa ke karuwa, ana amfani da ruwa hydrogen a matsayin mai ta manyan motoci da jiragen ruwa a cikin 'yan shekarun nan.A cikin yanayin aikace-aikacen da ke sama, mahimmancin bawuloli a bayyane yake.Amintaccen aiki da abin dogaro na bawuloli wani muhimmin bangare ne na tsarin samar da iskar hydrogen ruwa (samarwa, sufuri, ajiya da rarrabawa).Ayyuka masu alaƙa da hydrogen ruwa suna da kalubale.Tare da fiye da shekaru 30 na ƙwarewar aiki da ƙwarewa a fagen manyan bawuloli har zuwa -272 ° C, Velan ya shiga cikin ayyukan haɓaka daban-daban na dogon lokaci, kuma a bayyane yake cewa ya ci nasara da ƙalubalen fasaha na sabis na ruwa hydrogen tare da ƙarfinsa.
Kalubale a cikin tsarin ƙira
Matsa lamba, zafin jiki da kuma tattarawar hydrogen duk manyan abubuwan da aka bincika a cikin ƙima na haɗarin bawul.Domin inganta aikin bawul, ƙira da zaɓin kayan aiki suna taka muhimmiyar rawa.Valves da ake amfani da su a aikace-aikacen hydrogen na ruwa suna fuskantar ƙarin ƙalubale, gami da illar hydrogen akan karafa.A cikin ƙananan yanayin zafi, kayan bawul ba dole ba ne kawai su tsayayya da harin kwayoyin hydrogen (wasu daga cikin hanyoyin lalacewa masu alaƙa har yanzu ana muhawara a cikin ilimin kimiyya), amma kuma dole ne su ci gaba da aiki na al'ada na dogon lokaci a tsawon rayuwarsu.Dangane da matakin ci gaban fasaha na yanzu, masana'antar tana da ƙarancin ilimin amfani da kayan da ba na ƙarfe ba a aikace-aikacen hydrogen.Lokacin zabar kayan hatimi, wajibi ne a yi la'akari da wannan factor.Ingantacciyar hatimi kuma babban ma'aunin ƙira ne.Akwai bambancin zafin jiki na kusan 300°C tsakanin ruwa hydrogen da zafin jiki na yanayi (zazzabi na ɗaki), yana haifar da ƙarancin zafin jiki.Kowane bangare na bawul din zai fuskanci digiri daban-daban na fadada thermal da raguwa.Wannan bambance-bambancen na iya haifar da zub da jini mai haɗari na filaye masu mahimmanci.Ƙaƙƙarfan rufewa na bawul mai tushe kuma shine mayar da hankali ga zane.Canji daga sanyi zuwa zafi yana haifar da kwararar zafi.Wuraren zafi na yankin rami na bonnet na iya daskarewa, wanda zai iya rushe aikin rufewar tushe kuma ya shafi aikin bawul.Bugu da ƙari, ƙarancin zafin jiki na -253 ° C yana nufin cewa ana buƙatar mafi kyawun fasahar rufewa don tabbatar da cewa bawul ɗin zai iya kula da ruwa hydrogen a wannan zafin jiki yayin da yake rage asarar da tafasa.Muddin akwai zafi da aka tura zuwa ruwa hydrogen, zai ƙafe ya zube.Ba wai kawai ba, iskar oxygen yana faruwa a wurin karyawar rufin.Da zarar iskar oxygen ta haɗu da hydrogen ko wasu abubuwan ƙonewa, haɗarin wuta yana ƙaruwa.Sabili da haka, la'akari da hadarin wuta da bawul ɗin zai iya fuskanta, dole ne a tsara bawuloli tare da abubuwan da ba a iya fashewa ba a hankali, da kuma masu tayar da wuta, kayan aiki da igiyoyi, duk tare da takaddun shaida.Wannan yana tabbatar da cewa bawul ɗin yana aiki da kyau a yayin da wuta ta tashi.Ƙara matsa lamba kuma babban haɗari ne wanda zai iya sa bawul ɗin ba su aiki.Idan ruwa hydrogen ya makale a cikin rami na jikin bawul kuma canja wurin zafi da ƙawancen hydrogen na ruwa suna faruwa a lokaci guda, zai haifar da karuwa a matsa lamba.Idan akwai babban bambancin matsa lamba, cavitation (cavitation) / amo yana faruwa.Wadannan abubuwan mamaki zasu iya haifar da ƙarshen rayuwar sabis na bawul, har ma suna fama da babbar hasara saboda lahani na tsari.Ba tare da la'akari da takamaiman yanayin aiki ba, idan abubuwan da ke sama za a iya la'akari da su sosai kuma za'a iya ɗaukar matakan da suka dace a cikin tsarin ƙira, zai iya tabbatar da aminci da amincin aiki na bawul.Bugu da ƙari, akwai ƙalubalen ƙira da suka shafi al'amuran muhalli, irin su zubewar gudu.Hydrogen na musamman ne: ƙananan ƙwayoyin cuta, marasa launi, marasa wari, da fashewa.Waɗannan halayen sun ƙayyade cikakkiyar larura ta zubewar sifili.
A tashar Ruwan Hydrogen Liquefaction ta Arewa Las Vegas West Coast,
Injiniyoyin Wieland Valve suna ba da sabis na fasaha
Maganin bawul
Ko da kuwa takamaiman aiki da nau'in, bawuloli don duk aikace-aikacen hydrogen ruwa dole ne su cika wasu buƙatu gama gari.Waɗannan buƙatun sun haɗa da: kayan ɓangaren tsarin dole ne su tabbatar da cewa an kiyaye amincin tsarin a cikin ƙananan yanayin zafi;Duk kayan dole ne su kasance suna da kaddarorin amincin wuta na halitta.Don wannan dalili, abubuwan da ke rufewa da tattarawar bawuloli na hydrogen suma dole ne su cika ainihin buƙatun da aka ambata a sama.Austenitic bakin karfe shine ingantaccen abu don bawuloli na hydrogen ruwa.Yana da ƙarfin tasiri mai kyau, ƙarancin hasara na zafi, kuma yana iya jure babban gradients zafin jiki.Akwai wasu kayan da kuma sun dace da yanayin hydrogen ruwa, amma an iyakance ga takamaiman yanayin tsari.Baya ga zaɓin kayan, wasu bayanan ƙira bai kamata a yi watsi da su ba, kamar faɗaɗa tushen bawul da yin amfani da ginshiƙi na iska don kare fakitin rufewa daga matsanancin yanayin zafi.Bugu da ƙari, za a iya haɗawa da haɓakar ƙwayar bawul tare da zobe mai rufewa don kauce wa ƙazanta.Zane bawuloli bisa ga takamaiman yanayin aikace-aikacen yana taimakawa don ba da ƙarin mafita masu ma'ana ga ƙalubalen fasaha daban-daban.Vellan yana ba da bawul ɗin malam buɗe ido a cikin ƙira daban-daban guda biyu: eccentric ninki biyu da sau uku eccentric karfe wurin zama malam buɗe ido.Dukansu ƙira suna da ikon kwarara bidirectional.Ta hanyar zayyana siffar diski da yanayin jujjuyawa, ana iya samun hatimi mai ƙarfi.Babu rami a jikin bawul inda babu sauran matsakaici.A cikin yanayin bawul ɗin eccentric na malam buɗe ido biyu na Velan, yana ɗaukar ƙirar jujjuyawar diski, haɗe tare da keɓantaccen tsarin rufewa na VELFLEX, don cimma kyakkyawan aikin rufe bawul.Wannan ƙirar ƙira na iya jure har ma da manyan canjin zafin jiki a cikin bawul.Faifan eccentric na TORQSEAL sau uku shima yana da yanayin jujjuyawar da aka ƙera na musamman wanda ke taimakawa tabbatar da cewa murfin diski ɗin kawai ya taɓa wurin zama a daidai lokacin da ya isa wurin rufaffiyar bawul kuma baya karce.Sabili da haka, ƙarfin rufewa na bawul na iya fitar da diski don cimma madaidaicin wurin zama, kuma ya samar da isassun sakamako mai kyau a cikin rufaffiyar bawul, yayin da yake yin hulɗar diski daidai da duk kewayen wurin rufe saman.Yarda da wurin zama na bawul yana ba da damar jikin bawul da diski don samun aikin "daidaita kansa", don haka guje wa kama diski yayin canjin yanayin zafi.Ƙarfafa bakin karfe bawul ɗin bawul ɗin yana da ikon yin babban zagayowar aiki kuma yana aiki cikin sauƙi a ƙananan yanayin zafi.Tsarin eccentric na VELFLEX sau biyu yana ba da damar bawul don yin sabis akan layi cikin sauri da sauƙi.Godiya ga gidaje na gefe, za a iya bincika wurin zama da diski ko aiki kai tsaye, ba tare da buƙatar tarwatsa mai kunnawa ko kayan aiki na musamman ba.
Tianjin Tanggu Water-Seal Valve Co., Ltdsuna tallafawa ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun bawul, gami da madaidaicin wurin zamawafer malam buɗe ido bawul, Lug malam buɗe ido bawul, Bawul ɗin maida hankali biyu na flange, Double flange eccentric malam buɗe ido bawul,Y-strainer, daidaita bawul,Wafer faranti biyu duba bawul, da dai sauransu.
Lokacin aikawa: Agusta-11-2023