I-hydrogen i-hydrogen ineengenelo ezithile ekugcinweni nasekuhanjisweni. Xa kuthelekiswa ne-hydrogen, i-hydrogen ye-hydrogen (LH2) inesiphene esiphezulu kwaye sifuna uxinzelelo olusezantsi lokugcina. Nangona kunjalo, i-hydrogen kufuneka ibe -253 ° C yokuba lulwelo, okuthetha ukuba kunzima kakhulu. Amaqondo obushushu aphantsi kakhulu kunye nemingcipheko ephantsi yenza i-hydrogen i-widdrogen. Ngesi sizathu, amanyathelo okhuseleko angqongqo kunye nokuthembeka okuphezulu ziimfuno ezingaguqukiyo xa uyila i-valves kwizicelo ezifanelekileyo.
NguFadila Khelfioui, Frédéric Blanquet
I-Velan Valve (Velan)
Ukusetyenziswa kwe-hydrogen yolwelo (lh2).
Okwangoku, i-hydrogen ye-hydrogen isetyenziswa kwaye izamile ukuba isetyenziswe kwizihlandlo ezahlukeneyo. Kwi-aerospace, inokusetyenziswa njenge-rocket yokuqalisa i-rocket and kwaye ikwazi ukuvelisa amaza othusayo kwiiTunnels zomoya. Ixhaswe "yisayensi enkulu," i-hydrogen i-hydrogen ibe yinto ephambili kwiinkqubo eziphezulu, ii-paricles, kunye nezixhobo zenyukliya. Njengoko umnqweno wabantu wophuhliso oluzinzileyo uyakhula, i-hydrogen i-hydrogen isetyenziswe njengamafutha ngeelori ezininzi kunye neenqanawa ezingakumbi kule minyaka idlulileyo. Kwimeko yesicelo esezantsi, ukubaluleka kweevalves kucacile. Ukusebenza okukhuselekileyo kunye nokuthenjwa okuqinisekileyo kunye nokuthenjwa okuqinisekileyo kwenxalenye ebalulekileyo yenkqubo ye-endrogen ye-hydrogen ye-hydrogen (imveliso, yokuhamba, ukugcinwa nokusasazwa). Imisebenzi enxulumene nolwelo hydrogen lucelomngeni. Ngaphezulu kweminyaka engama-30 yamava asebenzayo kunye nobuchule kwicandelo le-valvesm yokusebenza eliphezulu ezantsi ukuya kwi-222 ° C, iVelan ibandakanyeka kwiiprojekthi ezininzi zenkonzo ye-hydrogen enamandla ayo.
Imiceli mngeni kwiSigaba sokuyila
Uxinzelelo, ubushushu kunye nokuxinana kwe-hydrogen zonke izinto eziphambili ezivavanywa kuvavanyo lomngcipheko woyilo lweValve. Ukwenzela ukuba iyonyuse i-valve yokusebenza, uyilo kunye nokukhethwa kwezinto ezibonakalayo zidlala indima yokuthatha isigqibo. Iivalves ezisetyenziswa kwizicelo ze-hydrogen ye-hydrogen bajamelana nemiceli mngeni eyongezelelweyo, kubandakanya neziphumo ezibi ze-hydrogen kwizinyithi. Kubushushu obuphantsi kakhulu, izinto ze-valve azifanele zithintele ukuhlaselwa kweemolekyuli ze-hydrogen (ezinye zeendlela ezinxulumene nokonakaliswa zisaxoxwe kwi-Agusia), kodwa kufuneka igcine ukusebenza okuqhelekileyo kumjikelo wobomi babo. Ngokwenqanaba langoku kuphuhliso lobuchwephesha, ishishini linolwazi olulinganiselweyo lokwenza izinto ezingezizo ezingesosinyithi kwizicelo ze-hydrogen. Xa ukhetha izinto zokutywina, kuyimfuneko ukuthatha le nto ibe yiakhawunti. Ukutywinwa ngokufezekileyo kukwayeyona nto iphambili yokusebenza kwentsebenzo. Kukho umahluko wamaqondo obushushu phantse ama-300 ° C phakathi kolwelo lwe-hydrogen kunye nobushushu begumbi (ubushushu begumbi), kukhokelela kwiqondo lobushushu. Icandelo ngalinye levali liya kufikelela kwimigangatho eyahlukeneyo yokwandiswa kwe-thermal kunye nokuchasana. Oku kungangqinelani kunokukhokelela ekuvuseleleni okunobungozi kwimigangatho ebalulekileyo yokutywina. Ukuqina kokutywina kwesiqu se-valve kukwayeyona nto kugxilwe kuyo. Inguqu kubanda ukuya kushushu kudala ukuhamba kobushushu. Iindawo ezishushu zendawo ye-bonnet zinokukhululeka, ezinokuphazamisa ukusebenza kwesiqu kwaye zichaphazela i-valve isebenze i-valve. Ukongeza, ubushushu obuphantsi kakhulu obukhoyo be--2533 ° C kuthetha ukuba eyona teknoloji yofaki-qhinga ibalaseleyo iyafuneka ukuqinisekisa ukuba ivalve inokugcina i-hydrogen i-hydrogen kulo lonke eliqondo lobushushu ngelixa ilahlekelwa kukubila. Ngalo lonke ixesha kukho ubushushu obutshintshelwe kwi-hydrogen engamanzi, iya kuphuma kwaye ivuza. Ayisiyiyo kuphela loo nto, ioksijini yeoksijini yenzeka kwindawo yokuqhekeka. Nje ukuba ioksijini ithe yadibana ne-hydrogen okanye ezinye izinto ezinokutsha, umngcipheko wokunyuka komlilo. Ke ngoko, cinga ngomngcipheko womlilo iivalves, iivalves kufuneka zenziwe ngokuqhushumbayo-kunye ne-Abliators enganyangekiyo emlilweni, izixhobo kunye neentambo, zonke izinto ezichaziweyo. Oku kuqinisekisa ukuba ivalve isebenza ngokufanelekileyo kwimeko yomlilo. Ukongezwa koxinzelelo kukwangumngcipheko onokubakho onokufumana ivumba elingenakuphikiswa. Ukuba i-hydrogen ye-hydrogen ibanjiswe kwi-cavity yomzimba wevali kunye nokudluliselwa kobushushu kunye nendawo ye-hydrogen yenzeka ngaxeshanye, kuya kubangela ukwanda. Ukuba kukho umahluko omkhulu woxinzelelo, i-cavitication (cavication) / Ingxolo yenzeka. Ezi phenomena zingakhokelela ekupheleni kobomi benkonzo ngaphambi kwexesha yevali, kwaye bade baphembeleli ilahleko enkulu ngenxa yokuswela isiphene. Nokuba yeyiphi na le mibandela yokusebenza, ukuba le miba ingentla ingathathwa njengezithathelwe ingqalelo ngokupheleleyo kwaye ifakwe i-overagasus ehambelana nayo inokuthathwa kwinkqubo yoyilo, inokuqinisekisa ukusebenza okukhuselekileyo nangokuthembekileyo kwevali. Ukongeza, kukho imiceli mngeni oyiliweyo enxulumene nemicimbi yokusingqongileyo, enjengokuvuza. I-hydrogen yahlukile: iimolekyuli ezincinci, ezingenabala, azinabala, kwaye ziqhume. Ezi mpawu zichonga into eyimfuneko ye-zero yokuvuza.
KwiNtla le-Las Vegas West Hydrogen Shidrogen Shillgen Shireensions,
Iinjineli ze-Wieland Valve zibonelela ngeenkonzo zobugcisa
Isisombululo seValve
Nokuba ungaphantsi komsebenzi othile kunye nohlobo, i-valve kuzo zonke izicelo ze-hydrogen kufuneka zifezekise iimfuno ezithile. Ezi mfuno zibandakanya: Izixhobo zenxalenye yesakhiwo kufuneka ziqinisekise ukuba ingqibelelo yesakhiwo igcinwa ngamaqondo obushushu asezantsi; Zonke izinto kufuneka zibe nepropathi yokhuseleko lomlilo. Ngesizathu esinye, izinto zokutywina kunye nokupakisha iivali ze-hydrogen ye-hydrogen kufuneka ifezekise iimfuno ezisisiseko ezichazwe apha ngasentla. Intsimbi engenasitali engenanto yento elungileyo ye-vils ye-hydrogen. Inamandla amakhulu, ilahleko yobushushu obuncinci, kwaye inokumelana neegrasi ezinkulu zeqondo. Kukho ezinye izinto ezilungele iimeko ze-hydrogen ezingamanzi, kodwa zinqunyelwe kwiimeko ezithile zenkqubo. Ukongeza kukhetho lwezixhobo, ezinye iinkcukacha zoyilo akufuneki zityhafe, njengokudlulisela isiqu se-valve kwaye sisebenzisa ikholamu yomoya ukukhusela ukupakisha okuphathwayo. Ukongeza, ulwandiso lwe-valve stem lunokuxhotyiswa ngeringi yokufakelwa ukuphepha ukufundisa. Ukuyila i-valves ngokwemicimbi ethile yesicelo kunceda ukunika izisombululo ezifanelekileyo kwimiceli mngeni ezahlukeneyo. I-vellan ibonelela ngeevallo zebhabhathane kwiindawo ezimbini ezahlukeneyo: I-Eccentric ePhezulu kunye ne-Eccentric ye-Eccentric ye-valves. Zombini eziyimilo zinesakhono sokuhamba kwe-bidirectial. Ngokuyila ubume be-disc kunye nokujikeleza kwetrajectory, itywina eliqinileyo linokufezekiswa. Akukho mkhwa kwi-valve apho kungekho sithuba sentsalela. Kwimeko ye-velan ye-velan butterfly ivalve, yamkela inkqubo yokutywina eyahlukileyo ye-velflex, ukufezekisa ukusebenza kwe-vove. Uyilo olunelungelo elilodwa lomenzi unokumelana nobushushu obukhulu obuguqukayo kwivalve. I-TORCSELD CORTCICT ikwanokuhamba ngokulandelelana okuncedayo okuncedayo ukuba umhlaba wokutywina komgangatho uchukumisa isitulo ngeli xesha lokufikelela kwindawo evaliweyo ye-valve kwaye ungakufuzili. Ke ngoko, i-throle yevali yevali inokuqhuba i-disc ukuba ifezekise indawo yokuhlala, kwaye ivelise ifuthe lomtshato olwaneleyo kwindawo evaliweyo ye-valve, ngelixa inxibelelana ngokulinganayo. Ukuthotyelwa kwesihlalo se-valve kuvumela i-valver kunye ne-disc ukuba "alungelelanise", ngaloo ndlela ukuphepha ukuthimba i-disc ngexesha lokutshintsha kwamaqondo. I-Shinaf yentsimbi engenasitali eqinileyo inamandla okusebenza okuphezulu kwaye isebenza kakuhle kumaqondo obushushu asezantsi kakhulu. I-velflex yoyilo oluphindwe kabini ivumela i-valve isebenze kwi-intanethi ngokukhawuleza nangokulula. Enkosi kwicala lecala, isitulo kunye ne-disc inokuhlolwa okanye inikezelwe ngokuthe ngqo, ngaphandle kwesidingo sokukhuthazana okanye izixhobo ezikhethekileyo.
I-Tiannjin Tangle yamanzi-yokutywina yeToal Po., ltdzixhasa itekhnoloji ebalaseleyo e-valves ehlala phantsi, kubandakanya abomeleleyoivalve yebhatetha yebhabhathane, I-Lug Butterfly Valve, I-bitch ye-flanges yebhabhathane,, I-flange ivutha yebhabhathane e-ectcerfly,Y-strainer, ivalve yokuguqula,I-Wial Steend Plateal Valve, njl.
IXESHA LOKUQALA: AUG-11 ukuya ku-1123
