Kodi Fan Filter Unit ndi chiyani?
Chipinda chosefera mafani kapena FFU ndi chofunikira kwambiri ngati chotulutsira madzi cha laminar chokhala ndi fan ndi mota yolumikizidwa. Fan ndi mota zilipo kuti zithetse kupsinjika kwa HEPA kapena ULPA yomwe ili mkati. Izi ndizothandiza pakukonzanso komwe mphamvu ya fan yomwe ilipo kuchokera ku chogwirizira mpweya sikokwanira kuthana ndi kutsika kwa kupanikizika kwa fyuluta. FFU ndi yoyenera kwambiri pakupanga kwatsopano komwe kumafunika kusintha kwa mpweya kwambiri komanso malo oyera kwambiri. Izi zikuphatikizapo ntchito monga ma pharmacies azipatala, malo opangira mankhwala ndi ma microelectronics kapena malo ena opangira zinthu. FFU ingagwiritsidwenso ntchito kukweza mwachangu komanso mosavuta gulu la ISO la zipinda pongowonjezera mayunitsi a fyuluta ya mafani padenga. Ndizofala kuti zipinda zoyera za ISO kuphatikiza 1 mpaka 5 kuti denga lonse likhale lophimbidwa ndi mayunitsi a fyuluta ya mafani pogwiritsa ntchito FFU m'malo mwa chogwirizira mpweya chapakati kuti zipereke kusintha kwa mpweya kofunikira. Kukula kwa chogwirizira mpweya kumatha kuchepetsedwa kwambiri. Kuphatikiza apo, ndi gulu lalikulu la FFU, kulephera kwa FFU imodzi sikusokoneza magwiridwe antchito a dongosolo lonse.
Kapangidwe ka Kachitidwe:
Kapangidwe kabwino ka chipinda choyera ndi kugwiritsa ntchito plenum yozungulira yopanikiza mpweya pomwe FFU imakoka mpweya wozungulira kuchokera ku zomwe zimabwezedwa, ndipo imasakanizidwa ndi mpweya wopangidwa kuchokera ku chipangizo choyendetsera mpweya. Ubwino umodzi waukulu wa dongosolo la FFU yopanikiza mpweya wopanikiza mpweya wopanikiza mpweya ndi wakuti limachotsa zoopsa za zinthu zodetsa zomwe zimasamuka kuchokera ku plenum yozungulira kupita kumalo oyera omwe ali pansipa. Izi zimathandiza kuti denga likhale lotsika mtengo komanso lovuta kugwiritsa ntchito. Kapenanso pamakina okhala ndi mayunitsi ochepa.
Kukula Koyenera:
FFU imatha kutulutsidwa mwachindunji kuchokera ku chogwirira mpweya kapena chipangizo cholumikizira. Izi ndi zabwino kwambiri pokonzanso malo pomwe malo akusinthidwa kuchoka pa ma laminar osasefa kupita ku FFU yotsekeredwa. FFU nthawi zambiri imapezeka m'makulidwe atatu, 2ft x 2 ft, 2ft x 3 ft, 2 ft x 4ft ndipo yapangidwa kuti igwirizane ndi gridi yokhazikika ya denga lopachikidwa. FFU nthawi zambiri imakhala ndi kukula kwa 90 mpaka 100 FPM. Pa kukula kodziwika kwambiri kwa 2ft x 2 ft izi zikufanana ndi 480 CFM ya chitsanzo cha fyuluta chosinthika m'mbali mwa chipinda. Kusintha kwa fyuluta ndi gawo lofunikira pakukonza nthawi zonse.
Mitundu ya Zosefera:
Pali mitundu iwiri yosiyanasiyana ya FFU yomwe imapangitsa kuti fyuluta isinthe m'njira zosiyanasiyana. Mitundu ya fyuluta yosinthika m'mbali mwa chipinda imalola kulowa mu fyuluta kuchokera kumbali ya chipinda popanda kusokoneza umphumphu wa denga. Magawo ochotsedwa m'mbali mwa chipinda ali ndi m'mphepete mwa mpeni womwe umalowa mu seal ya gel ya fyuluta kuti zitsimikizire kuti kulumikizana sikutuluka. Magawo osinthika pamwamba pa bench ayenera kuchotsedwa padenga kuti asinthe fyuluta. Mafyuluta osinthika pamwamba pa bench ali ndi malo ochulukirapo a fyuluta 25% zomwe zimathandiza kuti mpweya utuluke bwino.
Zosankha za Mota:
Njira ina yoti muyang'ane posankha chipangizo cha fan ndi mtundu wa mota yomwe imagwiritsidwa ntchito. Ma motor a PSC kapena AC induction ndi njira yotsika mtengo. Ma motor a ECM kapena brushless DC ndi njira yabwino kwambiri yokhala ndi ma micro processor omwe amayendetsa bwino ntchito ya motor ndikulola mapulogalamu a motor. Mukagwiritsa ntchito ECM pali mapulogalamu awiri a motor omwe alipo. Choyamba ndi constant flow. Constant flow ya motor imasunga mpweya kudzera mu fan filter unit popanda kupanikizika kokhazikika pamene fyuluta ikunyamula. Izi ndi zabwino kwambiri pamapangidwe a negative pressure common plenum. Pulogalamu yachiwiri ya motor ndi constant torque. Constant torque motor imasunga torque kapena mphamvu yozungulira ya motor popanda kupsinjika kokhazikika pamene fyuluta ikunyamula. Kuti mpweya upitirire kuyenda nthawi zonse kudzera mu fan filter unit ndi pulogalamu ya constant torque, terminal yodziyimira payokha ya upstream pressure kapena venturi valve imafunika. FFU yokhala ndi constant flow program siyenera kuyendetsedwa mwachindunji ku chipangizo cha upstream pressure independent terminal, chifukwa izi zimapangitsa kuti zipangizo zonse zanzeru zimenyere ulamuliro ndipo zingayambitse kugwedezeka kwa mpweya ndi kusagwira bwino ntchito.
Zosankha za Mawilo:
Kuwonjezera pa ma mota, palinso mawilo awiri. Mawilo opindika kutsogolo ndi njira yodziwika bwino ndipo amagwirizana ndi EC motor ndi pulogalamu yoyenda nthawi zonse. Mawilo opindika kumbuyo ngakhale kuti sagwirizana ndi pulogalamu ya constant flow motor ndi njira yosagwiritsa ntchito mphamvu zambiri.
Ma FFU akhala akutchuka kwambiri chifukwa cha kapangidwe kawo kogwiritsa ntchito mphamvu moyenera komanso kuchepetsa chiopsezo cha nthawi yogwira ntchito chifukwa cha makina oyendetsera mpweya omwe amagwiritsidwa ntchito m'malo osiyanasiyana. Kapangidwe ka makina a FFU kamalola kusintha mwachangu komanso kosavuta m'magulu a ISO a zipinda zoyera. Ma FFU ali ndi zinthu zambiri zothandiza komanso zosankha zomwe zimathandiza kusintha makinawo kwathunthu komanso njira zonse zowongolera zomwe zimathandiza kuyambitsa mwachangu ndi kuyambitsa, komanso kuwongolera kwathunthu ndikuwunika makinawo panthawi yogwira ntchito.
Nthawi yotumizira: Disembala-17-2020
