Vacuum insulated ipayipi(VIP) iyingxenye ebalulekile yokuthutha uketshezi lwe-cryogenic, njengegesi yemvelo ewuketshezi (LNG), i-liquid hydrogen (LH2), ne-liquid nitrogen (LN2). Inselele yokugcina lezi ziphuzo emazingeni okushisa aphansi kakhulu ngaphandle kokudlulisa ukushisa okubalulekile ixazululwa kusetshenziswa ubuchwepheshe be-vacuum insulation. Le bhulogi izochaza ukuthi kanjani vacuum insulated ipayipiihlinzeka nge-thermal insulation kanye nokubaluleka kwayo ezimbonini ezithembele ezinhlelweni ze-cryogenic.

Yini aVacuum Insulated Pipe?

A vacuum insulated ipayipiinamapayipi amabili agxilile: ipayipi elingaphakathi elithwala uketshezi lwe-cryogenic kanye nepayipi elingaphandle elivale ipayipi elingaphakathi. Isikhala esiphakathi kwalawa mapayipi amabili siyakhishwa ukuze kwakhiwe ivacuum, esebenza njengesivikelo esisebenza kahle kakhulu sokushisa. Ivacuum inciphisa ukudluliswa kokushisa nge-conduction ne-convection, esiza ukugcina uketshezi kuzinga lokushisa eliphansi elidingekayo.

Indlela I-Vacuum Insulation Esebenza Ngayo

Isihluthulelo ekusebenzeni kahle kokushisa kwe-avacuum insulated ipayipi ungqimba lwe-vacuum. Ukudluliswa kokushisa ngokuvamile kwenzeka ngezinqubo ezintathu eziyinhloko: i-convection, i-convection, kanye nemisebe. I-vacuum iqeda ukuqhutshwa kanye ne-convection ngoba awekho ama-molecule omoya esikhaleni esiphakathi kwamapayipi okudlulisa ukushisa. Ngokungeziwe ku-vacuum, ipayipi ngokuvamile ihlanganisa ukuvikela okukhanyayo ngaphakathi kwendawo ye-vacuum, ukunciphisa ukudluliswa kokushisa ngemisebe.

KunganiVacuum Insulated Pipe Ibalulekile kuma-Cryogenic Systems

Uketshezi lwe-Cryogenic luzwela ngisho nokwenyuka okuncane kwezinga lokushisa, okungabangela ukuba lihwamuke, okuholela ekulahlekeni komkhiqizo kanye nezingozi ezingaba khona.Vacuum insulated ipayipiiqinisekisa ukuthi izinga lokushisa loketshezi lwe-cryogenic njenge-LNG, LH2, noma i-LN2 lihlala lizinzile ngesikhathi sokuthutha. Lokhu kunciphisa kakhulu ukwakheka kwe-boil-off gas (BOG), kugcina uketshezi lusesimweni esifiselekayo isikhathi eside.

Izicelo zeVacuum Insulated Pipe

Vacuum insulated ipayipiisetshenziswa ezimbonini ezihlukahlukene, ezihlanganisa amandla, i-aerospace, kanye nemikhakha yezokwelapha. Embonini ye-LNG, ama-VIP aqashwa ukudlulisa igesi yemvelo ewuketshezi phakathi kwamathangi okugcina kanye namatheminali anokulahleka okuncane kokushisa. Emkhakheni we-aerospace, ama-VIP aqinisekisa ukudluliswa okuphephile kwe-liquid hydrogen, okubalulekile ekuqhumeni kwamarokhethi. Ngokufanayo, ekunakekelweni kwezempilo, i-nitrogen eyi-liquid ithuthwa kusetshenziswa ama-VIP ukuze kugcinwe izinto zebhayoloji futhi kusekelwe izinhlelo zokusebenza zezokwelapha.

Isiphetho: Ukusebenza kahle kweVacuum Insulated Pipe

Indima yevacuum insulated ipayipi ekuthuthweni kwe-cryogenic liquid ayikwazi ukweqiwa. Ngokunciphisa ukudluliswa kokushisa ngokusebenzisa izindlela ezithuthukisiwe zokufakelwa, ama-VIP aqinisekisa ukuthuthwa okuphephile nokuphumelelayo koketshezi lwe-cryogenic, okulwenza lubaluleke ezimbonini ezincike kubuchwepheshe bezinga lokushisa eliphansi. Njengoba isidingo sezicelo ze-cryogenic sikhula, ukubaluleka kwevacuum insulated amapayipiizoqhubeka nokukhuphuka, iqinisekise ukusebenza kahle kokushisa nokuphepha emisebenzini ebalulekile.