Ukuqonda Isimo Sesici

Ngaphambi kokungena kumaphrothokholi athile we Ukuphatha i-Liquid Argon, kubalulekile ukuqonda izici zayo ezibonakalayo kanye nezingozi ezingokwemvelo ezibonisayo. I-Argon (Ar) iyigesi ehloniphekile engenambala, engenaphunga, ayinambitheki, futhi engenabuthi. Yenza cishe u-0.93% womkhathi womhlaba. Ukuze uyithuthwe futhi uyigcine ngendlela efanele, ipholiswa emazingeni okushisa e-cryogenic—ikakhulukazi, ngaphansi kuka-185.8°C (-302.4°F)—okuyiguqula ibe uketshezi.

Lokhu kuncipha okumangalisayo kwezinga lokushisa kanye nesilinganiso sokunwebeka esilandelayo lapho sihwamuka kuyimithombo eyinhloko yengozi engaba khona.

Ingozi Yokwanda

Umthamo owodwa woketshezi unwebeka ufinyelele kumavolumu angaba ngu-840 wegesi ezingeni lokushisa elijwayelekile nokucindezela. Uma lokhu kwandiswa kwenzeka endaweni evalekile ngaphandle komoya owanele, kususa umoya-mpilo ngokushesha, okuholela engozini enkulu yokuphefumula. Ngenxa yokuthi igesi ayinaphunga futhi ayinambala, abasebenzi bangase bangaboni ukuthi amazinga komoyampilo ayaphela baze babe nesiyezi, baquleke, noma babi nakakhulu.

Izingozi ze-Cryogenic

Ukubanda okukhulu kwesimo soketshezi kubangela ingozi enkulu ezicutshini zomuntu. Ukuthintana ngqo noketshezi noma amapayipi namavalvu angafakwanga mshini kungabangela isithwathwa esinamandla, esivame ukuchazwa njengokushiswa kwe-cryogenic. Ukulimala kwezicubu kuyashesha futhi kujulile, kudinga ukunakwa okukhethekile.

Ukuhlobisa Okubalulekile

Akuzona zonke izinto ezikwazi ukumelana namazinga okushisa e-cryogenic. Izinsimbi ezivamile njenge-carbon steel namapulasitiki amaningi ziba brittle futhi zingaphahlazeka lapho zichayeka emakhazeni anjalo. Ukusebenzisa izinto ezifanele zengqalasizinda kubalulekile.

Imikhuba Engcono Kakhulu Yokuphatha I-Cryogenic Fluid

Ukuphatha i-Liquid Argon idinga ngokuphephile inhlanganisela yokuqeqeshwa okuqinile, okokusebenza okufanele kokuzivikela komuntu siqu (i-PPE), nokubambelela ngokuqinile ezimisweni ezimisiwe.

Izinto Ezisetshenziswayo Zokuzivikela Zomuntu Siqu (i-PPE)

Abasebenzi abasebenza ngezinhlelo ze-cryogenic noma eduze kwazo kufanele bahlonyiswe nge-PPE ekhethekile eklanyelwe ukuvikela emakhazeni amakhulu. Izingubo zokusebenza ezijwayelekile zasembonini azanele.

• Amagilavu e-Cryogenic: Lezi kufanele zilingane kahle ukuze zisuswe ngokushesha uma ukuchitheka kwenzeka. Kufanele zifakwe ngaphakathi futhi zenzelwe ukusetshenziswa kwe-cryogenic.

• Ukuvikelwa Kwamehlo Nobuso: Isivikelo sobuso esigcwele phezu kwezingilazi zokuphepha ezinezivikelo ezisemaceleni siyisibopho. Ama-Splash angabangela ukulimala kwamehlo ngokushesha.

• Izingubo Zokuzivikela: Kudingeka amahembe anemikhono emide, amabhulukwe amade angenawo ama-cuffs (ukuvimbela uketshezi ukuthi lungahlangani), kanye nephinifa elenziwe ngezinto ezingezona izimbotshana.

• Izicathulo: Amabhuzu esikhumba aqinile noma izicathulo zokuphepha ezikhethekile kufanele zigqokwe, futhi imilenze yebhulukwe kufanele ihlale ivala ingaphandle lamabhuzu ukuze iphambukise ukuchitheka.

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Izinqubo Zokudlulisa kanye Nezisetshenziswa

Inqubo yokudlulisa uketshezi olusuka ezimotweni ezilethwayo luye emathangini okugcina, noma lusuka emathangini luye ezindaweni zokufaka isicelo, luyisigaba esibucayi lapho izingozi zingase zenzeke khona.

• Ukuhlola Ngaphambi Kokudlulisa: Ngaphambi kokuthi kuqale noma yikuphi ukudluliswa, konke okuxhunywayo, ama-valve, namapayipi kufanele kuhlolwe ukuguga, ukonakala, noma umswakama. Ngisho nomswakamo omncane ungabanda ngokushesha, uvimbe ama-valve futhi ubangele ukunqwabelana kwengcindezi.

• Imigqa Yokuhlanza: Imigqa yokudlulisa kufanele ihlanzwe nge-nitrogen eyomile noma i-gaseous argon ukuze kukhishwe umswakama nomoya ngaphambi kokuba kwethulwe uketshezi lwe-cryogenic.

• Isingeniso Esinensa: Ukugeleza kufanele kuqaliswe kancane ukuvumela imigqa yokudlulisa ukuthi iphole kancane kancane. Ukupholisa ngokushesha kungabangela ukushaqeka okushisayo kanye nokwehluleka kwempahla.

• Ukugada Okuqhubekayo: Umsebenzisi oqeqeshiwe kufanele aqaphe inqubo yokudlulisa ngokuqhubekayo. Amasistimu azenzakalelayo abalulekile, kodwa ukugada komuntu kubalulekile ukuze kuphendulwe iziphazamiso ebezingalindelekile.

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Ukungenisa umoya kanye nokuqapha

Uma kubhekwa isilinganiso esibalulekile sokunwetshwa, ukungena komoya owanele kuyisivikelo esibaluleke kakhulu ekuphefumuleni.

• I-Ambient Air Monitoring: Izinzwa zokuphelelwa umoya komoyampilo kumele zifakwe kunoma iyiphi indawo lapho uketshezi lugcinwa khona noma lusetshenziswa khona. Lezi zinzwa kufanele zicuphe womabili ama-alamu abonakalayo nazwakalayo uma amazinga komoyampilo ehla ngaphansi kuka-19.5%.

• Ukungenisa umoya Ngempoqo: Ezindaweni ezivalekile, izinhlelo zokungena komoya ezisebenza ngomshini ezikwazi ukushintsha ngokushesha umthamo womoya ziyadingeka. Lezi zinhlelo kufanele zisebenze ngokuzenzakalelayo ngokuhlanganyela nama-alamu omoya-mpilo.

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Izimiso ze-Liquid Argon Storage

Ubuqotho be I-Liquid Argon Storage systems kubalulekile kukho kokubili ukuphepha kanye nokugcina amazinga aphezulu okuhlanzeka adingwa izinhlelo eziningi zezimboni. Ingqalasizinda yokugcina kufanele yenziwe ukuze ikwazi ukusingatha amakhaza amakhulu, inciphise ukubila, futhi ilawule ingcindezi ngokuphepha.

I-Cryogenic Tank Design

Amathangi okugcina izimboni zoketshezi lwe-cryogenic ayizingcezu zobunjiniyela eziyinkimbinkimbi. Angamaflask evacuum amakhulu aklanyelwe ukunciphisa ukudluliswa kokushisa.

• Ukwakhiwa Okunezindonga Ezimbili: Amathangi ahlanganisa umkhumbi wangaphakathi (ngokuvamile owakhiwe ngensimbi engagqwali noma ingxubevange ye-aluminium ekwazi ukumelana namazinga okushisa e-cryogenic) kanye nomkhumbi wangaphandle (okuvame ukuba yi-carbon steel).

• I-Vacuum Insulation: Isikhala se-annular phakathi kwemikhumbi yangaphakathi nengaphandle sigcwaliswa nge-insulating material (njenge-perlite) futhi ikhishwe ku-vacuum ephezulu. Lo mklamo unciphisa ukudluliswa kokushisa kwe-convective kanye ne-convective.

• Izakhiwo Zokusekela: Umkhumbi wangaphakathi kufanele usekelwe izakhiwo ezibuye zinciphise ukudluliswa kokushisa okuvela endaweni yangaphandle.

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Ukulawulwa Kwengcindezi kanye Nezinhlelo Zokusiza

Ngisho noma kufakwe uketshezi olungcono kakhulu, okunye ukushisa kuzodlulela ethangini, kubangele ingxenye yoketshezi ukuthi ibilise ibe igesi. Le nqubo yemvelo yandisa ingcindezi ngaphakathi kwethangi.

• Amavavu Okusiza Ingcindezi (PRVs): Amathangi kufanele afakwe ama-PRV ayisisekelo kanye nawesibili. Lawa mavalvu asethelwe ukuthi azivuleke ngokuzenzakalelayo uma umfutho wangaphakathi wedlula i-Maximum Allowable Working Pressure (MAWP) yethangi.

• I-Ripture Disc: Njengokwehluleka-ephephile, idiski yokuphuka ivamise ukufakwa ngokuhambisana nama-PRV. Uma ama-PRV ehluleka futhi ingcindezi iqhubeka nokukhuphuka, idiski izoqhuma, ikhiphe ngokuphephile igesi futhi ivimbele ukwehluleka kwethangi okuyinhlekelele.

• Umzila We-vent: Ukukhishwa okuvela kuma-PRV kanye namadiski okuqhuma kufanele kufakwe ngamapayipi endaweni engaphandle ephephile, enomoya omuhle ukuze kuvinjelwe ukuncipha komoyampilo wendawo.

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Ukugcina Ubumsulwa Ngesikhathi Sokugcina

Kuzinhlelo zokusebenza ezifana nokukhiqizwa kwe-semiconductor noma i-spectrometry yokuhlaziya, ukuhlanzeka kwegesi kubaluleke kakhulu njengokutholakala kwayo. Ukungcola kungonakalisa amaqoqo futhi kulimaze okokusebenza okuzwelayo.

• Amasistimu Azinikele: I-Liquid Argon Storage amasistimu kufanele ngokufanelekile anikezelwe kuleyo gesi yodwa ukuze kuvinjelwe ukungcoliswa okunqamulayo.

• Ukuhlunga: Izihlungi ze-in-line particulate nezihlanzi kufanele zifakwe emigqeni yokuhoxiswa ukuze kuqinisekiswe ukuthi igesi efika endaweni yohlelo lokusebenza ihlangabezana nezimfuneko ezidingekayo.

• Ukulungiswa okujwayelekile: Ukuhlolwa okujwayelekile kanye nokugcinwa kwe-vacuum insulation kanye nezinhlelo zamapayipi kuvimbela ukuvuza okungadonsela umoya osendaweni kanye nomswakama, kubeke engcupheni ubumsulwa.

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Idizayini yesikhungo kanye nengqalasizinda

Ukuhlanganisa uhlelo lwe-cryogenic endaweni yezimboni kudinga ukuhlela ngokucophelela nengqalasizinda ekhethekile.

Ithebula: Izinto Ezinconyiwe Zesevisi Ye-Cryogenic

Ukukhetha amapayipi kanye ne-Valve

• Ipayipi Elifakwe Ijakhethi Ye-Vacuum (VJP): Ukuze usebenze kahle kakhulu kanye nokubilisa okuncane ngesikhathi sokuthutha ngaphakathi kwendawo, i-VJP iyanconywa. Njengamathange okugcina izinto, la mapayipi anodonga lwangaphakathi nolwangaphandle olunesikhala phakathi kwawo.

• Amavalvu e-Cryogenic: Amavalvu ajwayelekile azohluleka ku -185°C. Amavalvu kufanele abe namabhonethi anwetshiwe. Ibhonethi enwetshiwe igcina ukupakishwa kwevalvu (uphawu oluzungeze isiqu) kude nokubanda okukhulu, kuvimbele isivalo ekuqineni nasekuhlulekeni.

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Indawo Yesayithi Nokufinyelela

• Okuncanyelwayo Kwangaphandle: Noma nini lapho kungenzeka, amathangi okugcina inqwaba kufanele abekwe ngaphandle ukuze kuncishiswe ngokwemvelo ingcuphe yokususwa komoyampilo esimweni lapho kuvuza noma kukhishwa umoya.

• Ukuphepha: Indawo yokugcina kufanele ivikelwe ekungeneni okungagunyaziwe.

• I-Bollards nokuvikela: Amathangi namapayipi avele obala kufanele avikelwe emithonjeni yezimoto ngamabholadi aqinile noma izithiyo zokuphahlazeka.

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Izinqubo Eziphuthumayo Zokusabela

Naphezu kokubambelela ngokuqinile ezenzweni ezingcono kakhulu, izimo eziphuthumayo zingenzeka. Uhlelo lwezimo eziphuthumayo oluchazwe kahle nolulolongiwe lubalulekile.

Ukubhekana Nokuchitheka Nokuvuza

1. Phuma: Okubalulekile ngokushesha ukukhishwa kwabasebenzi endaweni ethintekile, ikakhulukazi izindawo eziphansi lapho igesi ebandayo eminyene ingase inqwabelane.

2. Hlukanisa: Uma kungenziwa ngokuphepha ngaphandle kokuzibeka engcupheni yokuchayeka, vala umthombo wokuvuza usebenzisa amavalvu okuhlukanisa aphuthumayo.

3. Indiza: Yenza kusebenze ukungena komoya okuphezulu. Ungazami ukuhlanza okuchithekile; uketshezi luzohwamuka ngokushesha.

4. Ukuphathwa Kwenkungu: Ukuvuza okukhulu kuzodala inkungu eminyene yomswakama ovela emoyeni. Le nkungu yehlisa ukubonakala ibe ziro futhi ikhombisa indawo ebanda kakhulu kanye nokuntuleka komoyampilo okungaba khona. Gwema ukungena enkungwini.

Usizo Lokuqala Lwe-Cryogenic Exposure

• Othintana Nesikhumba: Ungayihlikihli indawo ethintekile. Geza ngamanzi amaningi ayisivivi (angashisi). Funa usizo lwezokwelapha ngokushesha. Ungazami ukususa izingubo ezifriziwe esikhumbeni; geza ngamanzi kuqala.

• Othintana Namehlo: Hlanza amehlo ngamanzi afudumele okungenani imizuzu eyi-15 futhi ufune usizo lwezokwelapha oluphuthumayo.

• I-asphyxiation: Uma umuntu enqotshwa ukuphelelwa umoya-mpilo, mhambise emoyeni omusha ngokushesha. Lawula i-CPR uma bengaphefumuli futhi ufune usizo lwezempilo oluphuthumayo. Abatakuli kumele basebenzise i-Self-Contained Breathing Apparatus (SCBA) ngaphambi kokungena endaweni entula umoya-mpilo.

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Ukuthobela Umthetho Nokuqeqeshwa

Ukuzulazula endaweni yokulawula kubalulekile ekusebenzeni okusemthethweni nokuphathwa kwesibopho.

• Amazinga we-OSHA kanye ne-CGA: E-United States, ukuhambisana nemithethonqubo ye-Occupational Safety and Health Administration (OSHA) kanye neziqondiso ezishicilelwe yi-Compressed Gas Association (CGA)—njenge-CGA P-1 (Ukuphathwa Okuphephile Kwamagesi Acindezelwe Ezitsheni) kanye ne-CGA P-12 (Ukuphathwa Okuphephile Koketshezi Lwe-Cryogenic)—kuyimpoqo. Izindikimba zokulawula ezifanayo zikhona emhlabeni jikelele.

• Ukuqeqeshwa Okuqhubekayo: Ukuphepha akuwona umcimbi wesikhathi esisodwa. Bonke abasebenzi abathintekayo ekusebenzeni, ekunakekeleni, noma ekugadweni kwezinhlelo ze-cryogenic kumele bathole ukuqeqeshwa okujwayelekile, okubhaliwe. Lokhu kuqeqeshwa kufanele kufake ukuqashelwa kwengozi, ukusetshenziswa kwe-PPE, izinqubo ezijwayelekile zokusebenza, kanye nezimpendulo eziphuthumayo.

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Ukugcina

Ukusetshenziswa kwaleli gas elihle le-cryogenic kuyisisekelo sezinqubo zanamuhla zezimboni. Kodwa-ke, izinzuzo zayo zingabonakala ngokugcwele kuphela lapho ubungozi obukhona bulawulwa ngokuqhubekayo. Ngokuqonda izakhiwo ezingokoqobo, ukusebenzisa ingqalasizinda eqinile, ukusebenzisa izinto ezifanele, kanye nokukhuthaza isiko lokuqeqeshwa okuqinile kokuphepha, izikhungo zezimboni zingaqinisekisa kokubili ubumsulwa bokunikezwa kwazo kanye nokuphepha okuphelele kwabasebenzi bazo. Izinqubo ezingcono kakhulu ezichazwe lapha zisebenza njengohlaka lokuphatha ngendlela efanele, okuqinisekisa ukuthi imisebenzi ihlala isebenza kahle, ithobela, futhi ivikelekile.

Imibuzo Evame Ukubuzwa

I-Q1: Kungani uhlobo oluthile lwe-valve "enebhonethi enwetshiwe" edingekayo kulezi zinhlelo ze-cryogenic?

IMP: Amavalvu ajwayelekile ayahluleka emazingeni okushisa e-cryogenic ngoba amakhaza adala ukuthi izinto zokuvala zangaphakathi (ukupakisha) zishwabane, zibe brittle, futhi ekugcineni zivuze noma ziphihlike. Ivalvu yebhonethi enwetshiwe ihambisa indlala yokupakisha iqhelelene noketshezi olukhalayo olugeleza emzimbeni wevalvu. Leli banga livumela umoya we-ambient ukuthi ugcine ukupakisha kufudumele ngokwanele ukuze kuhlale kuvumelana nezimo futhi kugcinwe ukuvala okuqinile, ukuvimbela ukuvuza okuyingozi.

I-Q2: Uma i-alamu yokuphelelwa umoya komoya ikhala endaweni yokugcina, yisiphi isenzo esidingekayo esisheshayo?

IMPENDULO: Isinyathelo sokuqala esiphelele ukuthuthwa kwendawo yibo bonke abasebenzi. Ungazami ukuphenya umthombo we-alamu ngaphandle kwemishini ekhethekile yokuphefumula. Lapho indawo isisusiwe, abaphenduli bezimo eziphuthumayo abaqeqeshiwe kuphela abahlome nge-Self-Contained Breathing Apparatus (SCBA) okufanele bangene esikhaleni ukuze babone futhi banciphise ukuvuza, kuyilapho bekhulisa indawo yokukhipha umoya ukuze bahlakaze umoya osusiwe.

Q3: Ingabe i-vacuum-jacketed piping (VJP) ihluke kanjani ekufakeni amapayipi okujwayelekile, futhi kungani kukhethwa?

A: Ukufakwa okujwayelekile, njengegwebu noma i-fiberglass, kuncike ekubambeni umoya noma igesi ukuze kubambezeleke ukudluliswa kokushisa. Emazingeni okushisa aphakeme kakhulu e-cryogenic, umswakama we-ambient ungafingqa futhi ube yiqhwa ngaphakathi kokufakwa okujwayelekile, kucekele phansi ukusebenza kwawo. I-VJP isebenzisa ukwakhiwa kwezindonga ezikabili ene-vacuum ephezulu phakathi kwepayipi elingaphakathi nejakhethi yangaphandle. Ngenxa yokuthi i-vacuum iqukethe cishe awekho ama-molecule okuhambisa ukushisa, isebenza kahle kakhulu ekuvimbeleni ukubilisa kanye nokugcina uketshezi ngesikhathi sokudluliselwa endaweni yonke yezimboni.