Kev Tshawb Fawb Kev Txhim Kho ntawm Submerged Phase Hloov Txias hauv Data Center
Nrog rau kev txhim kho kev ua haujlwm ntawm lub computer thiab kev sib koom ua ke ntawm cov khoom siv hauv computer, cov cua kub ceev ntawm cov chaw zov me nyuam tau nce, thiab cov kev xav tau rau cov cua kub dissipation systems kuj nce. Vim yog qhov kub thiab txias teeb meem ntawm kev siv hluav taws xob ntau ntawm cov dej txias thiab cua txias, nws yog ib qho nyuaj rau ua tau raws li cov teeb meem tshwm sim.
Cov kev xav tau ntawm cov cua kub dissipation ntawm cov khoom siv hluav taws xob tau ua rau kev txhim kho ntawm kev hloov pauv cua txias tshuab. Lub immersed theem hloov cua txias system yog tsim los ntawm ib tug evaporation seem, ib tug condensation seem thiab ib ncig system.
Cov khoom siv cua sov yog immersed nyob rau hauv ib qho insulating inert Kev sib cuag nrog tus neeg sawv cev rau cov cua sov dissipation.
Txoj kev no muaj qhov zoo ntawm kev ua haujlwm zoo thaum tshav kub kub dissipation thiab kev siv hluav taws xob tsawg. Tam sim no, immersion theem hloov cua txias tshuab yog nyob rau hauv nws cov me nyuam mos. Hauv ob peb xyoos tom ntej no, nrog rau kev txhim kho sai ntawm cov thev naus laus zis xws li kev lag luam ntse thiab kev lag luam huab, cov thev naus laus zis tshiab hluav taws xob hluav taws xob uas sawv cev los ntawm kev hloov pauv cov cua txias yuav muaj tseeb dhau los ua cov thev naus laus zis thev naus laus zis rau cov chaw khaws ntaub ntawv.
Qhov tsab xov xwm no yuav siv lub ntsiab qauv thiab lub hauv paus ntsiab lus ntawm lub immersed theem hloov txias system raws li qhov pib taw tes, tsom xam cov kev tshawb fawb tam sim no tsom thiab kev loj hlob raws li txoj cai los ntawm kev xaiv cov khoom cua txias thiab lub boiling cua kub hloov mechanism, thiab prospects rau lub immersed theem hloov txias tshuab. .
Cov kws tshawb fawb tau ua ntau yam kev tshawb fawb txog cov txheej txheem kub dissipation ntawm cov chaw zov me nyuam: ib txwm cua txias cua sov dissipation tau optimized rau airflow lub koom haum, dej-txias tshav kub dissipation servers tau nruab nrog backplanes, kub yeeb nkab kub dissipation technology, submerged theem hloov. cua txias, thiab pov tseg tshav kub rov qab tau ua tiav.
Kev tshawb fawb txog ntau yam thev naus laus zis los txo kev siv hluav taws xob. Nyob rau tib lub sijhawm, cov neeg siv khoom lag luam loj hauv tsev thiab txawv teb chaws tseem tab tom tshawb nrhiav cov txheej txheem cua sov kom zoo. Tuam Tshoj' Lub Tuam Txhab Sugon ib zaug tau pib lub tshuab ua kom txias txias, raws li pom hauv daim duab 2.
Cov neeg rau zaub mov no tuaj yeem siv rau hauv cov chaw khaws ntaub ntawv Tus nqi PUE ntawm chav tsev computer raug txo qis rau 1.05, thiab kev siv hluav taws xob txo qis dua li 30% piv nrog cov ntaub ntawv huab cua txias. Cov txiaj ntsig kev lag luam yog qhov tseem ceeb. Lub" Kirin" server launched los ntawm Alibaba tsis xav tau cua txias, kiv cua thiab lwm yam accessories thiab tuaj yeem xa mus rau txhua qhov chaw. Nws txuag tau ntau dua 75% ntawm qhov chaw, thiab nws cov qib siab ntawm airtightness khaws cov khoom siv hluav taws xob kom deb ntawm cov plua plav, av noo thiab lwm yam, thiab tiv thaiv los ntawm kev cuam tshuam sab nraud. Ntxiv nrog rau cov khoom siv cua sov, qee lub tuam txhab tau cog lus rau kev tshawb fawb thiab kev tsim cov xov xwm txias, tsim los ntawm 3M hauv Tebchaws Meskas A Novec coolant, uas muaj cov khoom siv insulating yooj yim tshaj plaws, muaj qhov kub kub qis dua li cov xov xwm cua txias. (xws li dej ntshiab, kua fluorinated, thiab ntxhia roj).
Nyob rau hauv ntau yam kev tshawb fawb qhia, immersion Vim nws qhov zoo xws li cov cua kub dissipation kev ua tau zoo, yooj yim txij nkawm, thiab tsis tshua muaj suab nrov, theem hloov cua txias tshuab tau dhau los ua qhov tseem ceeb ntawm kev tshawb fawb tam sim no.
Kev xaiv cov cua txias nruab nrab Lub immersed theem hloov cua txias system yuav tsum tau sealing kev ua tau zoo thiab siab dua cov khoom siv kho vajtse; Nyob rau tib lub sijhawm, qhov kev xaiv ntawm qhov nruab nrab cua txias kuj yog tus yuam sij rau kev hloov pauv cua txias tshuab. Qhov nruab nrab cua txias tsim nyog yuav tsum muaj cov yam ntxwv hauv qab no.
(1) Nws muaj cov cua kub latent siab ntawm vaporization, uas yog, tib qhov nyiaj ntawm cov cua kub dissipation siv tsawg dua qhov nruab nrab, uas tuaj yeem txhim kho cov cua sov dissipation efficiency thaum txo cov twj siv hluav taws xob ntxiv ntawm cov twj, cov yees txias thiab lwm yam khoom siv.
(2) Nws ua tiav cov txheej txheem rwb thaiv tsev nyob rau hauv nws cov kua, gaseous thiab gas-kua sib xyaw xeev.
(3) Nws yuav tsum muaj qhov kub kub tsawg. Thaum qhov kub ntawm cov neeg rau zaub mov tsis siab heev, lub coolant tseem tuaj yeem hloov kho theem ruaj khov kom tshem tawm cov cua sov kom ntseeg tau tias qhov kub thiab txias ntawm cov neeg rau zaub mov thiab kev ua haujlwm ib txwm muaj ntawm cov ntaub ntawv chaw.
(4) Tsis-corrosive rau cov ntaub ntawv server.
(5) Nws yog ib puag ncig tus phooj ywg, tsis muaj tshuaj lom thiab tsis muaj mob, thiab yooj yim los daws.
(6) Kev lag luam siab. Tam sim no, cov tshuaj tsw qab, silicates thiab fluorocarbons tau suav nrog hauv cov kev tshawb fawb ntawm cov cua txias nruab nrab ntawm submerged theem hloov cua txias. Cov roj ntxhia thiab cov kua fluorinated yog cov siv dav siv ncaj qha rau cov cua txias nruab nrab. Cov roj ntxhia yog pheej yig ､ Ib puag ncig tus phooj ywg, tsis muaj tshuaj lom thiab tsis muaj mob, tab sis yooj yim decomposes thiab yog cov khoom siv hluav taws xob, uas yog qhov txaus ntshai dua. Piv nrog cov ntxhia roj, tus nqi ntawm cov tshuaj fluoride yog me ntsis siab dua, tab sis nws cov khoom yog ruaj khov, nplaim taws retardant thiab haum dielectric tas li. Qhov nrov tshaj plaws cua txias nruab nrab tam sim no. Xu Yongsheng thiab lwm tus siv rab koob-phaj electrodes los simulate qhov chaw tsis tshua muaj hluav taws xob tsis sib xws, thiab tsim kom muaj ib feem cuam tshuam kev tshawb pom platform raws li 50Hz high voltage AC withstand voltage test system los tshawb txog cov txiaj ntsig ntawm cov tub yees kub npau npau ntawm ib feem ntawm qhov paug. tus nqi pib. Cov txiaj ntsig kev tshawb fawb pom tau hais tias qhov kub ntawm cov tub yees yuav txo qis qhov ntsuas hluav taws xob ntawm qhov rwb thaiv tsev ib puag ncig. Mo Shenyang thiab lwm tus tau siv cov cuab yeej ntsuas hluav taws xob los ua qhov kev tshawb fawb txog kev sib cais ntawm FC-72 refrigerant hauv cov kua, roj thiab ob-theem xeev. , Lub zog dielectric ntawm FC-72 vapor tau txais los ntawm kev ntsuas hluav taws xob zaus hluav taws xob tawg, thiab kev ntsuas ntau lub zog dielectric lub zog ntawm qhov tsis tshua muaj kub kub ntawm cov tub yees vapor tau pom. Wu Xilei thiab lwm tus simulated 4 feem ntau siv cov kua fluorinated (FC-72, lub zog ntawm Novec649, HFE-7100 thiab D-1) ntawm cov cua kub dissipation nyhuv ntawm lub submerged theem hloov cua txias system. Cov txiaj ntsig simulation qhia tau hais tias qhov kub ntawm qhov ntom ntom uas yuav tsum tau ua rau D-1 boiling heat transfer yog qhov tsawg tshaj plaws, tab sis nws qhov siab tshaj plaws cua sov dissipation muaj peev xwm nyob ze rau Novec649, me ntsis qis dua FC-72 thiab HFE-7100, nws tuaj yeem hloov cov hluav taws xob fluorinated uas twb muaj lawm. kua Novec649 nyob rau hauv immersed theem hloov txias. Dong Jinxi thiab lwm tus tau txheeb xyuas cov khoom siv hluav taws xob hydrocarbon-based coolant (PAO) thiab # 65 ethylene glycol los ntawm kev sim Cov khoom siv lub cev thiab cov thermodynamic ntawm cov coolant zoo sib xws (tom qab no hu ua # 65), # 65 muaj peev xwm ua kom sov ntau dua li PAO, tab sis Lub cev ruaj khov thiab tsis ua haujlwm ntawm PAO yog siab dua #65. Tam sim no muaj kev tshawb fawb tsawg dua ntawm cov xov xwm cua txias thiab xav tau Kev tshawb fawb ntxiv tau ua thiab pom qhov nruab nrab cua txias nrog lub cev ruaj khov thiab muaj peev xwm ua kom sov siab.
Ntxiv optimization ntawm submerged theem hloov cua txias tshuab tuaj yeem txhim kho nws cov kev ua kom txias. Cov lus qhia kev tshawb fawb tom ntej yog raws li hauv qab no.
(1) Npaj cov cua txias nruab nrab nrog cov khoom ruaj khov, kawm txog kev cuam tshuam ntawm qhov tsis sib xws ntawm qhov chaw hluav taws xob ib puag ncig ntawm cov khoom ntawm cov kua ua kom txias, thiab ua tiav qhov kev ntsuas lub zog dielectric ntawm qhov nruab nrab cua txias hauv qab lub zog siab.
(2) Fluorinated kua muaj zog volatility, kev tshawb fawb thiab kev loj hlob ntawm cov khoom sib xws ntawm cov dab dej kub sealing.
(3) Los ntawm kev sim, txuas ntxiv tshawb xyuas qhov cuam tshuam ntawm qhov sib txawv ntawm kev tsim cov npuas hauv microchannel, kawm txog cov txheej txheem ntawm boiling cua sov hloov mus rau saum npoo ntawm cov neeg rau zaub mov, thiab tsim kom muaj ib tus neeg sawv cev ntau dua kub hloov cov qauv.
(4) Sijhawm-kuaj cov khoom ntim cov ntaub ntawv polymer ntawm cov khoom siv hluav taws xob kom ntseeg tau tias lawv lub neej kev pabcuam, txo tus nqi txij nkawm thaum siv cov neeg rau zaub mov thiab txo qhov kev ntseeg siab los ntawm kev saib xyuas tsis tu ncua.
