Liquid haydrojen gɛt sɔm bɛnifit dɛn we i de kip ɛn transpɔt. We yu kɔmpia am wit haydrojɛn, likwid haydrojɛn (LH2) gɛt ay density ɛn i nid fɔ gɛt smɔl prɛshɔn fɔ mek dɛn kip am. Bɔt haydrojɛn fɔ bi -253°C fɔ mek i bi likwid, we min se i rili at. Ekstrim low temperechur en flammability risk de mek likwid haydrojen bi denja medium. Fɔ dis rizin, strikt sefty mɛsej ɛn ay rilaybiliti na tin dɛn we nɔ de kɔmprɔmis we dɛn de disayn valv fɔ di rilevɛns aplikeshɔn dɛn.
Na Fadila Khelfaoui, Frɛdrik Blanket rayt am
Velan valv (Velan) .
Aplikeshɔn dɛn fɔ likwid haydrojɛn (LH2).
Naw, dɛn de yuz likwid haydrojɛn ɛn dɛn de tray fɔ yuz am na difrɛn spɛshal tɛm dɛn. Insay aerospace, dɛn kin yuz am as rɔket lanch fiul ɛn i kin mek shɔk wev dɛn bak na transonik wind tanɛl dɛn. We “big sayɛns” de sɔpɔt am, ɛn likwid haydrojɛn dɔn bi wan impɔtant tin we dɛn kin yuz fɔ mek supakondukt sistem, patikyula aksilarayta, ɛn nyuklia fiushɔn divays dɛn. As pipul dɛn want fɔ gɛt sataynabul divɛlɔpmɛnt de gro, mɔ ɛn mɔ trak ɛn ship dɛn dɔn de yuz likwid haydrojɛn as fiul insay di las ia dɛn. Insay di aplikeshɔn sɛnɛriɔ dɛn we de ɔp, di impɔtants fɔ valv dɛn rili klia. Di sef ɛn rilibul ɔpreshɔn fɔ valv dɛn na impɔtant pat pan di likwid haydrojɛn sapla chen ɛkosistim (prɔdakshɔn, transpɔt, stɔrɔj ɛn distribyushɔn). Di opareshɔn dɛn we gɛt fɔ du wit likwid haydrojɛn na tin dɛn we nɔ izi fɔ du. Wit mɔ pas 30 ia prɛktikal ɛkspiriɛns ɛn ɛkspɛriɛns pan di fild fɔ ay-pafɔmɛnshɔn valv dɛn we de dɔŋ to -272°C, Velan dɔn de involv insay difrɛn inovativ prɔjek dɛn fɔ lɔng tɛm, ɛn i klia se i dɔn win di tɛknikal chalenj dɛn fɔ likwid haydrojɛn savis wit in trɛnk.
Chalenj dɛn we de na di dizayn faz
Prεshכn, tεmprachכ εn haydrojεn kכnsantreshכn na כl di men tin dεm we dεn egzamin insay wan valv disayn risk asesmεnt. Fɔ mek dɛn ebul fɔ mek di valv wok fayn fayn wan, dizayn ɛn matirial sɛlɛkshɔn de ple wan disisiv rol. Valv dɛn we dɛn kin yuz fɔ yuz likwid haydrojɛn kin gɛt ɔda prɔblɛm dɛn, lɛk di bad tin dɛn we haydrojɛn kin du to mɛtal dɛn. pan rili lכw tεmprachכ, valv mεtirial dεm nכ nכ fכ כnli tinap fכ di atak we di haydrojεn mכlikul dεm de atak (dεn stil de dibat sכm pan di mεkanism dεm we de apin fכ di tεmprachכ we de apin na di akademi), bכt dεn fכ mεnten nכmal כpεreshכn fכ lכng tεm ova dεn layf saykl. We i kam pan di kɔrɛnt lɛvɛl fɔ tɛknɔlɔjik divɛlɔpmɛnt, di industri nɔ gɛt bɛtɛ no bɔt di aplikebiliti fɔ nɔ-mɛtal matirial dɛn na haydrojɛn aplikeshɔn dɛn. We yu de pik tin fɔ sidɔm, i nid fɔ tek dis tin na yu maynd. Ifektiv silin na bak wan ki dizayn pefɔmɛns krayteria. di tεmprachכ difrεns de we de kכlכsכl 300°C bitwin likwid haydrojεn εn ambient tεmprachכ (rum tεmprachכ), we de rεsult in tεmprachכ grεdiεnt. εvri kכmכpכnt fכ di valv go כnda difrεn digri dεm fכ tεmral εkspεns εn kכntrikshכn. Dis diskrεpshכn kin mek di hazardous lik na di krichɔl siling surfaces. Di siling tayt we di valv stem gɛt na in bak na di tin we di dizayn de pe atɛnshɔn pan. di transishכn frכm kol to hot de mek hεt fכ fכlכ. di hot pat dεm na di bכnet kaviti εria kin friz, we kin disrupt di stεm siling pכrfomans εn afekt di valv כpεraybiliti. Apat frɔm dat, di tɛmpracha we rili lɔw we na -253°C min se dɛn nid di bɛst insuleshɔn tɛknɔlɔji fɔ mek shɔ se di valv kin ebul fɔ kip likwid haydrojɛn na dis tɛmpracha we i de mek i nɔ lɔs we i bɔyl. As lɔng as ɔt de we dɛn transfa to likwid haydrojɛn, i go evapɔret ɛn lik. nכto dat nכmכ, כksijεn kכndensεshכn de apin na di say we di insulεshכn de brok. We ɔksijɛn kam nia haydrojɛn ɔ ɔda tin dɛn we kin bɔn, di risk fɔ mek faya kech kin bɔku. So, we yu tink bɔt di faya risk we valv dɛn kin gɛt, dɛn fɔ disayn di valv dɛn wit tin dɛn we nɔ go bɔm na dɛn maynd, ɛn bak fɔ mek faya nɔ bɔn, inschrumɛnt ɛn kebul dɛn, ɔl dɛn fɔ gɛt di strikt sɛtifiket dɛn. Dis kin mek shɔ se di valv de wok fayn if faya kech. di prεshכn we de go כp na pכtεnshal risk bak we kin mek di valv dεm nכ ebul fכ wok. if likwid haydrojen trכp insay di kכva na di valv bכdi εn hεt tכnfכs εn likwid haydrojεn εvapכrayshכn de apin di sem tεm, i go mek di prεshכn inkrεs. If big prɛshɔn difrɛns de, cavitation (cavitation)/nɔys de apin. Dɛn tin ya kin mek di valv in savis layf dɔn bifo tɛm, ɛn ivin sɔfa big big lɔs bikɔs ɔf di prɔses difrɛns. I nɔ mata di patikyula opareshɔn kɔndishɔn, if dɛn kin tink gud wan bɔt di tin dɛn we wi dɔn tɔk bɔt ɛn dɛn kin tek kɔrɛspɔndɛns kɔwntamɛzhɔ dɛn we dɛn de dizayn, i kin mek shɔ se di valv de wok sef ɛn rili. Apat frɔm dat, dizayn chalenj dɛn de we gɛt fɔ du wit envayrɔmɛnt biznɛs, lɛk fɔ lik we pipul dɛn de rɔnawe. Haydrojɛn spɛshal: i gɛt smɔl smɔl tin dɛn, i nɔ gɛt kɔlɔ, i nɔ gɛt smel, ɛn i kin bɔn. Dɛn kwaliti ya de sho di absɔlɔb nid fɔ mek ziro lik.
Na di Nɔt Las Vegas Wɛst Kɔst Haydrojɛn Likwefakshɔn steshɔn,
Wieland Valve injinia dɛn de gi tɛknikal savis
Valv sɔlvishɔn dɛn
I nɔ mata di patikyula wok ɛn di kayn, valv fɔ ɔl di likwid haydrojɛn aplikeshɔn dɛn fɔ mit sɔm kɔmɔn rikwaymɛnt dɛn. Dɛn tin ya we dɛn nid na: di matirial fɔ di strɔkchɔ pat fɔ mek shɔ se di strɔkchɔral intɛgriti de na di tɛmpracha we rili smɔl; Ɔl di matirial dɛn fɔ gɛt natura l faya sef prɔpati. Fɔ di sem rizin, di siling ɛlimɛnt ɛn pak fɔ likwid haydrojɛn valv dɛn fɔ mit di bɛsis rikwaymɛnt dɛn we wi dɔn tɔk bɔt ɔp bak. Ɔstenitik stenlɛs stiɛl na fayn matirial fɔ likwid haydrojɛn valv dɛn. I gɛt fayn fayn impak trɛnk, i nɔ de lɔs bɔku ɔt, ɛn i kin ebul fɔ bia wit big big tɛmpracha gradient. Ɔda matirial dɛn de we fayn bak fɔ likwid haydrojɛn kɔndishɔn, bɔt dɛn kin limited to spɛshal prɔses kɔndishɔn dɛn. Apat frɔm di tin dɛn we dɛn kin pik, dɛn nɔ fɔ fɔgɛt sɔm ditil dɛn bɔt dizayn, lɛk fɔ ɛkstɛnd di valv stem ɛn yuz ɛya kɔlɔn fɔ protɛkt di silin pak frɔm di tɛmpracha we rili smɔl. apat frכm dat, di εkstenshכn fכ di valv stεm kin εkwip wit wan insulεshכn ring fכ avכyd kכndensεshכn. Disain valv dɛn akɔdin to spɛshal aplikeshɔn kɔndishɔn dɛn de ɛp fɔ gi mɔ rizin sɔlvishɔn to difrɛn tɛknikal chalenj dɛn. Vellan de gi bataflai valv dɛn insay tu difrɛn dizayn dɛn: dabl ɛksentrik ɛn tripl ɛksentrik mɛtal sit bɔtaflay valv dɛn. Dɛn tu dizayn dɛn ya gɛt baydayrɛkshɔn flɔ kapabiliti. We yu disayn di disk shep ɛn di rɔtin trajektɔri, yu kin ebul fɔ gɛt tayt sil. nכ kכva de na di valv bכdi usay nכ rεsidyual mεdiכm de. Insay di kes fɔ di Velan dabl ɛksentrik bɔtaflay valv, i adopt di disk ɛksentrik rɔteshɔn dizayn, we dɛn jɔyn wit di difrɛn VELFLEX silin sistɛm, fɔ ajɔst fayn fayn valv silin pefɔmɛns. Dis patɛnt dizayn kin ebul fɔ bia ivin big big tɛmpracha we de chenj na di valv. Di TORQSEAL tripl eccentric disk gɛt bak spɛshal dizayn rɔteshɔn trajektɔri we de ɛp fɔ mek shɔ se di disk silin sɔfays jɔs tɔch di sit di tɛm we i rich di klos valv pozishɔn ɛn i nɔ de skrach. So, di klosing tork fכ di valv kin drεb di disk fכ achy kompliant sit, εn prodyuz wan sufayf wedj ifekt na di klos valv posishכn, we i de mek di disk ivin kכntakt wit di כl sεkכnfεns fכ di sit siling sεf. di komplians fכ di valv sit de alaw di valv bכdi εn disk fכ gεt “sεlf-adjusting” fכnshכn, so dat de avכyd fכ seiz di disk we di tεmprachכ de chenj. Di stenlɛs stiɛl valv shaft we dɛn dɔn riinfɔs kin ebul fɔ du ay ɔpreshɔn saykl dɛn ɛn i kin wok fayn fayn wan we di tɛmpracha rili smɔl. Di VELFLEX dabl eksentrik dizayn de alaw di valv fɔ savis ɔnlayn kwik ɛn izi. Tɛnki fɔ di sayd haus, dɛn kin inspɛkt di sit ɛn di disk ɔ savis am dairekt wan, we nɔ nid fɔ disassemble di aktyuator ɔ spɛshal tul dɛn.
Tianjin Tanggu Wata-sial Valv Co.,ltdde sɔpɔt ayli-advans teknɔlɔji resilient sidɔm valv, inklud resilient sidɔmwafer bɔtaflay valv, Lug bataflai valv, Dabl flɛnch kɔnsɛntrik bɔtaflay valv, Dabl flange eksentrik bataflai valv,Y-strainer we dɛn kin yuz, valv we de balans, .Wafer dual plet chɛk valv, ɛn ɔda tin dɛn.
Di tɛm fɔ post: Ɔgɔst-11-2023
