Ama-Microchannel Heat Exchangers (MCHEs): Guqula Ama-CRAC Condensers Ngokusebenza Kahle Kwesikhungo Sedatha

Ezikhungweni zedatha, ama-Computer Room Air Conditioner (CRAC) ama-condenser enziwe-noma{1}}ikhefu ukuze kugcinwe ukusebenza kweseva kanye nokwehlisa i-PUE (Ukusebenza Kokusetshenziswa Kwamandla). Amashubhu endabuko-izishintshi zokushisa zakwa-fin ngokuvamile ziyawa-ziyinqwaba, azisebenzi kahle, futhi{5}}zinokunakekelwa okuphezulu. NgenaAma-Microchannel Heat Exchangers (MCHEs): eklanywe ngamashaneli okugeleza amancane (0.1–2 mm), okuhlanganiswe konke{2}}isakhiwo se-aluminium, kanye ne-vacuum brazing, ama-MCHE axazulula lezi zindawo zobuhlungu kuyilapho iletha inani eliphathekayo lemisebenzi yesikhungo sedatha. Ngezansi indlela agqama ngayo, kanye nama-tweaks angokwezifiso akhulisa umthelela wawo.

Izinzuzo Zokusebenza Eziyinhloko: Xazulula Amaphuzu Obuhlungu Amakhulu Esikhungo Sedatha

Ama-MCHE awamane nje "athuthuke" kuma-condenser avamile-achaza kabusha lokho okungenzeka ezikhungweni zedatha ezigxile ekusebenzeni kahle, isikhala, izindleko, nokwethembeka.

1. 30–50% Ukusebenza Kakhulu Kokudlulisa Ukushisa=I-PUE Ephansi

Izikhungo zedatha zilwela ukugcina i-PUE ingaphansi kokungu-1.3-futhi ama-MCHE ayisikhali esiyimfihlo. Amashaneli abo amancane adala indawo enkulu ethile engaphezulu (200–350 m²/m³, 2–3x yamamodeli eshubhu{15}}efin), okuphoqa iziqandisi (ezifana no-R134a noma i-R410A) ekugelezeni okunamandla okunyakazayo (inombolo ye-Reynolds Re > 2300). Lokhu kunciphisa ukumelana nokushisa, kusunduze i-coefficient yokudlulisa ukushisa ibe ngu-400–600 W/(m²·K) (vs. 200–300 W/(m²·K) ye-tube-fin).

Kusho ukuthini lokhu kuwena: Ngomthwalo wokupholisa ongu-100 kW, ama-MCHE asika izinga lokushisa elijiya ngo-3–5 degree. Njalo ukwehla kwedigri elingu-1 kunciphisa ukusetshenziswa kwamandla e-compressor ngo-2–3%, okuhumushela ku-25–35% ukusetshenziswa kwamandla e-CRAC aphansi. Ngesikhungo sedatha esimaphakathi esingu-1000 m², lokho kungu-30,000–42,000 kWh ekongeni ugesi konyaka{15}}futhi i-PUE yehle isuka ku-1.4 yaya ngaphansi kuka-1.25.

Ilungele: -izikhungo zedatha zokuminyana okuphezulu (ukuminyana kwamandla > 300 W/m²) noma ukufaka kabusha amayunithi amadala e-CRAC (asikho isidingo sokunweba isikhala ukuze kuthuthukiswe ukupholisa).

2. 30–50% Okuncane, 40–60% Okulula: Londoloza Isikhala Sesikhungo Sedatha Esibalulekile

Indawo yesitezi sesikhungo sedatha siyabiza-futhi amashubhu endabuko{1}}ama-fin condensers ayasichitha. Ama-MCHE's wonke-i-aluminium flat-yethubhu + i-integrated fin design isusa ukugoba okukhulu kwe-copper kanye nama-fin gaps amamodeli we-bloat tube{6}}fin.

Okokusethwa komoya okungu-100 kW{1}}okupholile:

Ivolumu: Ama-MCHE athatha u-~0.8 m³ (vs. 1.2–1.3 m³ we-tube-fin), angena kalula ezinhlangothini zamarack noma emakhoneni.

Isisindo: Ku-~80 kg (vs. 150 kg yeshubhu-fin), ama-MCHE alungele amayunithi e-CRAC ophahleni{3}ehlisa umthwalo wesakhiwo futhi anciphise izindleko zokufaka (akudingeki igiya lokuphakamisa elisindayo).

3. 50–70% Isiqandisi Esingaphansi: Yehlisa Izindleko & Uhlangabezane Nemithetho Yendawo

Iziqandisi ezifana ne-R410A ziyabiza futhi zilawulwa (sibonga i-EU's F-Gas Regulation kanye ne-China'sUkuhlolwa Kwesilinganiso Sekhabhoni Okuluhlaza Nokuphansi Kwezikhungo Zedatha). Ivolumu yeshaneli encane ye-MCHEs (1/3–1/2 leyo ye-tube-fin) inciphisa izidingo zesiqandisi:

Isistimu engu-100 kW esebenzisa i-R410A idinga nje u-2.5–3.5 kg wesiqandisi (vs. 8–10 kg ngeshubhu-i-fin){7}}ukonga ~300–390 CNY ngeyunithi ngayinye ngaphambili.

Amaphuzu avuzayo ambalwa (ngamaphesenti angu-40 ngaphansi kweshubhu-i-fin, ngenxa yezihloko ezihlanganisiwe) asho ubungozi obuphansi bendawo futhi awekho ama-top abizayo anesiqandisi{2}}.

4. I-Corrosion Resistance ne-MTBF Yamahora angu-10,000: Gcina ama-CRAC Esebenza 24/7

Izikhungo zedatha zisebenza ngokungami-futhi isikhathi sokuphumula siyinhlekelele. Amashubhu endabuko{2}}ama-fin condenser ahluleka kusenesikhathi ngenxa yokugqwala kwe-copper{3}}aluminium galvanic, kodwa ama-MCHE akhelwe ukuze ahlale:

Isakhiwo esingenamthungo: I-vacuum brazing iqeda "i-copper-izikhala ze-aluminium" (isici esikhulu sokugqwala).

Izingubo zokugqoka ezenziwe ngokwezifiso: I-epoxy noma i-polytetrafluoroethylene (ugqinsi lwama-20-50 μm) inyusa ukumelana nesifutho sikasawoti ukusuka emahoreni angama-500 kuye kwamahora angaphezu kuka-1500.

Umphumela? I-MTBF (Mean Time Between Failures) ifinyelela emahoreni angu-10,000{2}}cishe ngokuphindwe kabili kwe-tube-fin (amahora angu-5,000–6,000). Ukunakekelwa okuncane=isikhathi esincane sokuphumula sesikhungo sakho sedatha.

Ukuzijwayeza Ngokwezifiso Kwezobuchwepheshe: Yenza ama-MCHE Asebenzele i-CRAC Yakho

Ama-MCHE awakona ukumiselela "-kuphakathi"{1}}adinga ama-tweaks ukuze afane nezidingo ezihlukile zama-CRAC. Nansi indlela esizilungiselela ngayo izikhungo zedatha:

1. Idizayini ehlakaniphile yokuguquguquka komthwalo nomsindo ophansi

Iziteshi{0}eziningi zokudlula: Iseva ilayisha i-spike emini bese yehla ebusuku. Ama-MCHE asebenzisa iziteshi zokugeleza zesigaba se-2-4, ezihlanganiswe nama-valve okwandisa kagesi, ukulungisa ukugeleza kwesiqandisi: umthamo ogcwele weziqongo, umthamo oyingxenye wamalulls. Lokhu kugwema "ukungasebenzi kahle- komthwalo" okukhungethe amakhonsathi ephasi-evamile.

Amaphiko athule: Izikhungo zedatha zidinga umsindo Ngaphansi noma olingana no-60 dB (A). Ama-MCHE asebenzisa amaphiko amancane-ama-pitch louvered fin (isikhala esingu-1.8–2.2 mm) kanye{5}}namafeni okugeleza komoya okuphansi (1.5–2.0 m/s){8}}anqamula umsindo ngo-3–5 dB (A) vs.

2. (I-Corrosion & Clogging Protection): Yakhelwe Izimo Zesikhungo Sedatha

Uthuli, intuthu yebhethri ye-UPS, nokukalwa kwamanzi kuyizingozi zesikhungo sedatha{0}}Ama-MCHE abhekana nakho ngqo{1}}ku:

I-Dual-i-layer anti{1}}anti-corrosion coating: I-Chromate passivation (5–10 μm) ikhuphula ukunamathela, kuyilapho ungqimba olungaphezulu lwe-epoxy (20–30 μm) luvimba imidiya ebolayo. Ukuhlola kubonisa ukuthi imelana nokugqwala iminyaka engaphezu kwengu-8 ezikhungweni zedatha.

Ukulungisa-ukulungisa ukuvala uhlangothi lwamanzi (okwamanzi{1}}ama-CRAC apholile): Iziteshi ze-MCHE (1–2 mm) zijwayele ukukala{2}}ngakho siyengeza:

Izihlungi ze-100-mesh stainless steel inlet ukuze ubambe ukungcola.

Amashaneli acijile (1 mm inlet → 1.5 mm outlet) ukuze kuncishiswe ukugeleza-okukhuphuka kwezinga okubangela isikali.

Ama-inhibitor-ebanga lesikali sokudla (isb, i-polycarboxylic acid) ukuze anwebe izikhawu zokuhlanza zibe yizinyanga eziyi-12 (vs. 6 izinyanga zeshubhu-fin).

3. Ukuhlanganiswa Kwe-CRAC Okungenamthungo: Akukho Imfucuza, Akukho Ukuvuza

Ama-MCHE asebenza kahle kakhulu uma ebhangqwe namasistimu e-CRAC-sithuthukisa lonke uxhumano:

Ukufanisa abalandeli: Amaphiko e-MCHE anokumelana komoya okuphansi ngo-15–20% kune-tube{2}}fin. Sisebenzisa{4}i-static-abalandeli bengcindezi ephansi (50–80 Pa) kanye nesivinini esikhulu Esingaphansi noma esilingana no-1400 rpm ukuze songe amandla ngaphandle kokudela ukupholisa.

Ukuvuza{0}izixhumanisi zokuxhumana: Iheda ehlanganisiwe isika isibalo sokusebenzelana sisuka ku-8–12 (ithubhu-i-fin) siye ku-2–4. Kabili-Ama-ferrule seal agcina ukuvuza Ngaphansi noma kulingana no-1×10⁻⁹ Pa·m³/s (ngokuhlola ukuvuza ngakunye kwe-helium){8}}kubalulekile ekuphepheni kwesiqandisi.

Kungani ama-MCHE Eyikusasa Le-CRAC Condensers

Ezikhungweni zedatha, ama-MCHE awasona nje isishintshi sokushisa esingcono{0}}ayindlela yokufinyelela imigomo yokusimama, ukunciphisa izindleko, nokugcina amaseva esebenza ngokwethembeka. Kungakhathaliseki ukuthi wakha indawo{2}}eminyana kakhulu noma uthuthukisa ama-CRAC amadala, ama-MCHE aletha ukusebenza kahle, ukonga isikhala, nokuqina okudingayo ukuze uhlale uncintisana.

Ulungele ukuguqula ama-condenser akho e-CRAC? Hlola ukuthi ama-MCHE angehlisa kanjani i-PUE yakho futhi athuthukise ukusebenza kwesikhungo sakho sedatha namuhla.

Amashadi ashisayo: umshini wokuwasha umshini wokuwasha we-microchannel, i-China microchannel womshini wokuwasha abakhiqizi be-condenser, abahlinzeki, imboni