Microchannel Heat Exchangers (MCHEs): Sinthani Ma Condensers a CRAC kuti Data Center Agwire Bwino

Kwa malo opangira data, ma condenser a Computer Room Air Conditioner (CRAC) amapangidwa-kapena-kupuma kuti asunge magwiridwe antchito ndi kutsitsa PUE (Kugwiritsa Ntchito Mphamvu). Traditional chubu-zosinthira ma fin heat nthawi zambiri zimakhala zochepa-zimakhala zochulukira, zosagwira ntchito bwino, komanso zosamalira-pamwamba. LowaniMicrochannel Heat Exchangers (MCHEs): opangidwa ndi tinjira tating'onoting'ono (0.1-2 mm), zonse zophatikizika-zopanga aluminiyamu, ndi vacuum brazing, ma MCHE amathetsa zowawazi pomwe akupereka phindu lowoneka bwino la ntchito za data center. Pansipa ndi momwe amawonekera, kuphatikiza zosintha zomwe zimakulitsa mphamvu zawo.

Ubwino Wogwiritsa Ntchito Kwambiri: Konzani Zowawa Zazikulu Zazikulu za Data Center

Ma MCHE "samangosintha" pama condenser achikhalidwe-amatanthauziranso zomwe zingatheke kumalo osungiramo data omwe amayang'ana kwambiri pakuchita bwino, malo, mtengo, ndi kudalirika.

1. 30–50% Kutentha Kwambiri Kwambiri Kutentha=M'munsi PUE

Malo opangira data amalimbana kuti PUE isapitirire zaka 1.3-ndipo ma MCHE ndi chida chachinsinsi. Makanelo awo ang'onoang'ono amapanga malo okulirapo (200–350 m²/m³, 2–3x a machubu-mafin model), kukakamiza mafiriji (monga R134a kapena R410A) kuti azikhala ndi chipwirikiti (Nambala ya Reynolds Re > 2300). Izi zimachepetsa kupirira kwa kutentha, kukankhira mphamvu yotengera kutentha kufika pa 400–600 W/(m²·K) (vs. 200–300 W/(m²·K) ya chubu-fin).

Izi zikutanthawuza chiyani kwa inu: Pa katundu wozizira wa 100 kW, ma MCHE amadula kutentha kwa 3-5 digiri. Kutsika kwa digirii iliyonse kumachepetsa kugwiritsa ntchito mphamvu ya kompresa ndi 2-3%, kumasulira mpaka 25-35% kutsitsa mphamvu ya CRAC. Kwa 1000 m² medium data center, ndiye 30,000–42,000 kWh m'chaka chopulumutsa magetsi pachaka-ndipo PUE yatsika kuchoka pa 1.4 kufika pansi pa 1.25.

Zabwino kwa: -malo ochulukirachulukira kwambiri (kachulukidwe mphamvu > 300 W/m²) kapena kukonzanso mayunitsi akale a CRAC (palibe chifukwa chokulitsa malo kuti muzizizirira bwino).

2. 30–50% Yaing'ono, 40–60% Yopepuka: Sungani Valuable Data Center Space

Data center floor space ndi yokwera mtengo-ndipo kale chubu{1}}fin condensers amawononga. Ma MCHE's onse-aluminium flat-chubu + integrated fin design amathetsa mapindikidwe a copper ndi ma fin gap omwe ama bloat tube-fin models.

Kwa mpweya wa 100 kW{1}}wozizira:

Voliyumu: Ma MCHE amatenga ~0.8 m³ (vs. 1.2–1.3 m³ pa chubu-chipsepse), kulowa mosavuta m'mbali mwa rack kapena makona.

Kulemera kwake: Pamakilomita pafupifupi 80 (kuyerekeza ndi. 150 kg pa chubu-chipiko), ma MCHE ndi abwino kwa mayunitsi a CRAC padenga{{3}amachepetsa katundu womanga ndi kuchepetsa mtengo woikapo (palibe zida zonyamulira zolemera zomwe zimafunikira).

3. 50–70% Mufiriji Wocheperako: Dulani Mtengo & Pezani Malamulo a Zachilengedwe

Mafiriji monga R410A ndi okwera mtengo komanso amalamulidwa (zikomo ku EU's F-Gas Regulation and China'sZobiriwira ndi Zotsika{{0}Mayeso a Carbon Magawo a Data). Voliyumu yaying'ono ya tchanelo ya MCHEs (1/3–1/2 ya chubu-fin) imachepetsa zosowa za firiji:

Dongosolo la 100 kW logwiritsa ntchito R410A limangofunika 2.5–3.5 kg ya firiji (kuyerekeza ndi. 8–10 kg pa chubu-chipepi)-saving ~300–390 CNY pa yuniti imodzi yakutsogolo.

Kuchucha pang'ono (40% kuchepera pa chubu-fin, chifukwa cha mitu yophatikizika) kumapangitsa kuti chiwopsezo cha chilengedwe chichepe komanso osakwera mufiriji-zokwera mtengo kwambiri.

4. Kulimbana ndi Corrosion & 10,000-Hour MTBF: Sungani ma CRAC Akuthamanga 24/7

Malo opangira data amakhala osayimitsa-ndipo nthawi yocheperako ndiyowopsa. Traditional chubu-fin condenser amalephera msanga chifukwa cha mkuwa-aluminium galvanic corrosion, koma ma MCHE amamangidwa kuti azikhala nthawi yayitali:

Kapangidwe kake kopanda msoko: Kutsekera kwa vacuum kumachotsa "mkuwa-mipata ya aluminiyamu" (choyambitsa dzimbiri).

Zopaka zamwambo: Zopaka za epoxy kapena polytetrafluoroethylene (20-50 μm wandiweyani) zimathandizira kukana kupopera mchere kuchokera ku maola 500 mpaka maola opitilira 1500.

Chotsatira? MTBF (Mean Time Between Failures) imagunda maola 10,000{2}}pafupifupi kuwirikiza kawiri kuchuluka kwa chubu-fin (maola 5,000–6,000). Kukonza pang'ono=kucheperachepera kwa malo anu a data.

Kusintha Kwaukadaulo Kwaukadaulo: Pangani MCHEs Kugwirira Ntchito CRAC Yanu

Ma MCHE si "otsikira"-m'malo"{1}}amafunika kusintha kuti agwirizane ndi zosowa zapadera za ma CRAC. Umu ndi momwe timakwaniritsira ma data center:

1. Mapangidwe Anzeru Pakusinthasintha Kwa Katundu & Phokoso Lapansi

Machanelo{{0}ambiri: Seva imanyamula spike masana ndikutsika usiku. Ma MCHE amagwiritsa ntchito mayendedwe a 2-4 gawo, ophatikizidwa ndi ma valve okulitsa amagetsi, kuti asinthe mafunde a refrigerant: kuchuluka kwathunthu kwa nsonga, mphamvu pang'ono ya lulls. Izi zimapewa "kuchepa{4}}kulephera kugwira ntchito bwino" komwe kumavutitsa ma condenser achikhalidwe omwe amadutsa-paskha.

Zipsepse zabata: Malo opangira ma data amafunikira phokoso Lochepera kapena lofanana ndi 60 dB (A). Ma MCHE amagwiritsa ntchito zipsepse zopapatiza-zotalikirana (1.8–2.2 mm) komanso -mafani a airflow (1.5–2.0 m/s)-zochepetsa phokoso ndi 3–5 dB (A) vs. chubu-, kotero matimu (oyendetsa ndi kukonza) amagwira ntchito mosasokoneza.

2. (Kuteteza Kuwonongeka & Kutsekeka): Kumangidwa kwa Malo a Data Center

Fumbi, utsi wa batri ya UPS, ndi kukweza kwa madzi ndi zoopsa zapakati pa data{0}}Ma MCHE amalimbana nawo molunjika-pa:

Zovala zapawiri-zoteteza{1}}zoletsa dzimbiri: Chromate passivation (5-10 μm) imathandizira kumamatira, pomwe gawo la epoxy pamwamba (20-30 μm) limatchinga media zowononga. Mayeso akuwonetsa kuti imakana dzimbiri kwa zaka zopitilira 8 m'malo opangira data.

Madzi-zokonza zotsekera m'mbali (zamadzi-zozizira ma CRAC): Matchanelo a MCHE (1–2 mm) amakonda kukula-choncho tikuwonjezera:

Zosefera za 100-mesh zosapanga dzimbiri zosapanga dzimbiri kuti zitseke zonyansa.

Matchanelo opindika (1 mm cholowera → 1.5 mm chotulutsira) kuti muchepetse kuthamanga-kuchulukira komwe kumayambitsa sikelo.

Food-grade scale inhibitors (monga polycarboxylic acid) kuti awonjezere nthawi yoyeretsa mpaka miyezi 12 (vs. 6 miyezi ya chubu-fin).

3. Kuphatikiza kwa CRAC Yopanda Msoko: Palibe Zinyalala, Palibe Kutayikira

Ma MCHE amagwira ntchito bwino akalumikizidwa ndi makina a CRAC-timakulitsa kulumikizana kulikonse:

Kufananiza kwa mafani: Zipsepse za MCHE zimakhala ndi 15–20% kutsika kwa mpweya kuposa chubu-chipsepse. Timagwiritsa ntchito mafani apansi-static-pressure fan (50–80 Pa) ndi liwiro lochepera Lochepera kapena lofanana ndi 1400 rpm kuti tisunge mphamvu popanda kusiya kuziziritsa.

{{0}zolowera zowona zotsikira: Mitu yophatikizika imadula mawonekedwe kuchokera pa 8–12 (chubu-fin) kufika pa 2–4. Kawiri-zisindikizo za ferrule zimatuluka Zochepera kapena zofanana ndi 1×10⁻⁹ Pa·m³/s (pa helium kutayikira)-zofunika kwambiri pachitetezo cha firiji.

Chifukwa chiyani MCHEs Ndi Tsogolo la CRAC Condensers

Kwa malo opangira data, ma MCHE si njira yabwinoko yosinthira kutentha-ndi njira yokwaniritsira zolinga, kuchepetsa mtengo, ndi kusunga ma seva akuyenda modalirika. Kaya mukumanga-zinyumba zochulukirachulukira kwambiri kapena mukukweza ma CRAC akale, ma MCHE amakupatsani mphamvu, kusunga malo, komanso kulimba komwe mukufunikira kuti mukhale opikisana.

Mwakonzeka kusintha ma condensers anu a CRAC? Onani momwe ma MCHE angachepetsere PUE yanu ndikulimbikitsa magwiridwe antchito a malo anu a data lero.

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