Iyini iyunithi yesihlungi sabalandeli?
Iyunithi yesihlungi sefeni noma i-FFU ibalulekile njenge-laminar flow diffuser enefeni nenjini ehlanganisiwe. Ifeni nenjini zikhona ukuze kunqotshwe ingcindezi engaguquki yesihlungi se-HEPA noma se-ULPA esifakwe ngaphakathi. Lokhu kuwusizo ekusetshenzisweni kabusha lapho amandla efeni akhona avela kumphathi womoya enganele ukunqoba ukwehla kwengcindezi yesihlungi. I-FFU ifaneleka kahle ekwakheni okusha lapho amazinga aphezulu okushintsha komoya kanye nezindawo ezihlanzekile kakhulu kudingeka khona. Lokhu kufaka phakathi izinhlelo zokusebenza ezifana namakhemisi asezibhedlela, izindawo zokuhlanganisa imithi kanye ne-micro electronics noma ezinye izikhungo zokukhiqiza ezibucayi. I-FFU ingasetshenziswa futhi ukuthuthukisa ngokushesha nangokulula ukuhlukaniswa kwe-ISO kwamakamelo ngokumane wengeze amayunithi esihlungi sefeni ophahleni. Kuvamile ukuthi amakamelo ahlanzekile e-ISO kanye ne-1 kuya ku-5 ukuze lonke uphahla lumbozwe ngamayunithi esihlungi sefeni ngokusebenzisa i-FFU esikhundleni se-central air handler ukunikeza izinguquko zomoya ezidingekayo. Usayizi we-air handler ungancishiswa kakhulu. Ngaphezu kwalokho nge-assortment enkulu ye-FFU, ukwehluleka kwe-FFU eyodwa akubeki engcupheni ukusebenza kohlelo lonke.
Umklamo Wesistimu:
Umklamo ojwayelekile wesistimu yegumbi elihlanzekile ukusebenzisa i-plenum evamile yokucindezela okungekuhle lapho i-FFU idonsa khona umoya ozungezile kusuka ekubuyiselweni okuvamile, futhi ixutshwe nesimo yakha umoya ovela kuyunithi yokuphatha umoya. Inzuzo enkulu yohlelo lwe-FFU lwe-plenum evamile yokucindezela okungekuhle ukuthi lususa izingozi zokungcola okufudukayo kusuka ku-plenum yophahla kuya endaweni ehlanzekile engezansi. Lokhu kuvumela ukuthi kusetshenziswe uhlelo lophahla olungabizi futhi oluyinkimbinkimbi. Ngaphandle kwalokho ukufakwa okunamayunithi ambalwa.
Usayizi Ojwayelekile:
I-FFU ingakhishwa ngqo kusuka ku-air handler noma kudivayisi yokugcina. Lokhu kulungele izinhlelo zokusebenza zokulungisa lapho isikhala sithuthukiswa kusuka kuma-laminar angewona ama-filter kuya kuma-duct FFU. Ama-FFU ngokuvamile atholakala ngobukhulu obuthathu, 2ft x 2 ft, 2ft x 3 ft, 2 ft x 4ft futhi aklanyelwe ukulingana negridi yophahla olulengisiwe ejwayelekile. Ama-FFU ngokuvamile asayizi we-90 kuya ku-100 FPM. Ngobukhulu obudumile kakhulu be-2ft x 2 ft lokhu kulingana ne-480 CFM yemodeli yesihlungi esingashintshwa eceleni kwegumbi. Ukushintsha isihlungi kuyingxenye ebalulekile yokulungiswa okuvamile.
Izitayela Zokuhlunga:
Kunezinhlobo ezimbili ezahlukene ze-FFU ezenza kube lula ukushintsha izihlungi ngezindlela ezahlukene. Amamodeli ezihlungi ezingashintshwa eceleni kwegumbi avumela ukufinyelela kusihlungi kusukela ohlangothini lwegumbi ngaphandle kokuphazamisa ubuqotho bohlelo lophahla. Amayunithi angasuswa eceleni kwegumbi anomphetho wommese ohlanganisiwe ohilela esivikelweni sejeli yesihlungi ukuqinisekisa ukuxhumana okungenawo amanzi. Amayunithi angashintshwa phezulu kwebhentshi kumele asuswe ophahleni ukuze kufakwe isihlungi esikhundleni saso. Izihlungi ezingashintshwa phezulu kwebhentshi zinendawo yokuhlunga engu-25% eyengeziwe evumela amazinga aphezulu okugeleza komoya.
Izinketho Zemoto:
Enye indlela okufanele uyibheke lapho ukhetha iyunithi yomoya uhlobo lwemoto esetshenziswayo. Ama-motor ohlobo lwe-PSC noma lwe-AC induction ayindlela engabizi kakhulu. Ama-motor e-ECM noma angenamabhulashi e-DC ayindlela yokusebenza kahle ephezulu enama-micro processors angaphakathi athuthukisa ukusebenza kwemoto futhi avumela uhlelo lwemoto. Uma usebenzisa i-ECM kunezinhlelo ezimbili zemoto ezitholakalayo. Eyokuqala ukugeleza okuqhubekayo. Uhlelo lokugeleza okuqhubekayo kwemoto lugcina ukugeleza komoya ngeyunithi yesihlungi sabalandeli ngaphandle kwengcindezi eqinile njengoba isihlungi silayisha. Lokhu kulungele ukwakheka kwe-plenum evamile yokucindezela okungekuhle. Uhlelo lwesibili lwemoto yi-torque eqinile. Uhlelo lwe-torque eqinile lwemoto lugcina leyo torque noma amandla okujikeleza emoto ngaphandle kwengcindezi eqinile njengoba isihlungi silayisha. Ukuze kugcinwe ukugeleza komoya okuqhubekayo ngeyunithi yesihlungi sabalandeli ngohlelo lwe-torque eqinile, kudingeka i-terminal ezimele ingcindezi ephezulu noma i-venturi valve. I-FFU enohlelo lokugeleza okuqhubekayo akufanele idonswe ngqo kudivayisi yesihlungi ezimele ingcindezi ephezulu, njengoba lokhu kubangela ukuthi womabili amadivayisi ahlakaniphile alwe nokulawula futhi kungaholela ekunyakazeni komoya nokusebenza kabi.
Izinketho Zamasondo:
Ngaphezu kwezinketho zemoto kukhona nezinketho ezimbili zamasondo. Amasondo agobile phambili ayindlela ejwayelekile futhi ahambisana ne-EC motor kanye nohlelo lokugeleza okuqhubekayo. Amasondo agobile angemuva nakuba engahambisani nohlelo lwe-constant flow motor ayindlela eyonga amandla kakhulu.
Ama-FFU akhule kancane kancane ekuthandweni ngenxa yomklamo wawo osebenzisa amandla kahle kanye nengozi encishisiwe yokungasebenzi ngenxa yesistimu yokuphatha umoya ehlukanisiwe. Umklamo wezinhlelo ze-FFU ojwayelekile uvumela izinguquko ezisheshayo nezilula ekuhlukanisweni kwe-ISO kwamagumbi okuhlanza. Ama-FFU anezici eziningi eziwusizo nezinketho ezivumela ukwenza ngokwezifiso okuphelele kwesistimu kanye nohlu oluphelele lwezinketho zokulawula ezicebile ezivumela ukuqala okusheshayo nokuqaliswa, kanye nokulawula okugcwele nokuqapha kwesistimu ngesikhathi sokusebenza.
Isikhathi sokuthunyelwe: Disemba 17-2020
