Kukula kwamakampani amakono kwapangitsa kuti pakhale zofuna zambiri pazachilengedwe zoyesera, kafukufuku ndi kupanga. Njira yayikulu yokwaniritsira izi ndi kugwiritsa ntchito kwambiri zosefera za mpweya m'makina aukhondo owongolera mpweya. Pakati pawo, zosefera za HEPA ndi ULPA ndizotetezedwa komaliza kwa tinthu tating'ono tomwe timalowa mchipinda choyera. Kuchita kwake kumagwirizana mwachindunji ndi msinkhu wa chipinda choyera, chomwe chimakhudzanso ndondomeko ndi khalidwe la mankhwala. Choncho, ndizomveka kuchita kafukufuku woyesera pa fyuluta. Kukaniza ndi kusefera kwa zosefera ziwirizi kunafaniziridwa pa liwiro losiyana la mphepo poyesa kusefera bwino kwa fyuluta ya galasi ya fiber ndi PTFE fyuluta ya 0.3 μm, 0.5 μm, 1.0 μm PAO particles. Zotsatira zikuwonetsa kuti liwiro la mphepo ndi chinthu chofunikira kwambiri chomwe chimakhudza kusefa kwa zosefera za mpweya wa HEPA. Kuthamanga kwa mphepo, kumachepetsa kusefa kwachangu, ndipo zotsatira zake zimakhala zoonekeratu kwa zosefera za PTFE.
Mawu ofunikira:HEPA mpweya fyuluta; Kukana ntchito; kusefa ntchito; PTFE fyuluta pepala; galasi CHIKWANGWANI fyuluta pepala; galasi CHIKWANGWANI fyuluta.
Nambala ya CLC: X964 Document ID Code: A
Ndi chitukuko chosalekeza cha sayansi ndi ukadaulo, kupanga ndi kusinthika kwazinthu zamakono zamafakitale kwakhala kofunikira kwambiri paukhondo wamkati wamkati. Makamaka, ma microelectronics, mankhwala, mankhwala, biological, processing chakudya ndi mafakitale ena amafuna miniaturization. Kulondola, chiyero chapamwamba, mawonekedwe apamwamba komanso odalirika kwambiri m'nyumba, zomwe zimayika zofunikira zapamwamba komanso zapamwamba pakuchita kwa HEPA fyuluta ya mpweya, momwe mungapangire fyuluta ya HEPA kuti ikwaniritse zofuna za ogula yakhala kufunikira kwachangu kwa opanga. Chimodzi mwamavuto omwe adathetsedwa [1-2]. Ndizodziwika bwino kuti kukana komanso kusefera bwino kwa fyuluta ndizizindikiro ziwiri zofunika pakuwunika zosefera. Pepalali likuyesera kusanthula momwe kusefera komanso kukana kwa HEPA mpweya fyuluta ya zinthu zosefera zosiyanasiyana ndi zoyesera [3], ndi mitundu yosiyanasiyana ya zinthu zomwezo fyuluta. Zosefera zosefera ndi kukana kwa fyuluta zimapereka maziko ongoyerekeza a wopanga fyuluta.
1 Kusanthula njira yoyesera
Pali njira zambiri zodziwira zosefera za HEPA, ndipo mayiko osiyanasiyana ali ndi miyezo yosiyana. Mu 1956, US Military Commission idapanga USMIL-STD282, muyezo wa HEPA air filter test, ndi njira ya DOP yoyesera bwino. Mu 1965, muyezo waku Britain BS3928 unakhazikitsidwa, ndipo njira yamoto ya sodium yodziwira bwino idagwiritsidwa ntchito. Mu 1973, European Ventilation Association inapanga muyezo wa Eurovent 4/4, womwe unatsatira njira yodziwira moto wa sodium. Pambuyo pake, bungwe la American Society for Environmental Testing and Filter Efficiency Science linapanga miyeso yofananira ya njira zoyezera zovomerezeka, zonse pogwiritsa ntchito njira yowerengera ya DOP caliper. Mu 1999, Europe idakhazikitsa muyezo wa BSEN1822, womwe umagwiritsa ntchito mawonekedwe owoneka bwino a tinthu (MPPS) kuti azindikire kusefera bwino [4]. Mulingo wodziwika waku China utengera njira yamoto wa sodium. Njira yowunikira mawonekedwe a HEPA air filter yomwe imagwiritsidwa ntchito poyeserayi imapangidwa kutengera muyezo wa US 52.2. Njira yodziwira imagwiritsa ntchito njira yowerengera caliper, ndipo aerosol imagwiritsa ntchito tinthu ta PAO.
1. 1 chida chachikulu
Kuyesaku kumagwiritsa ntchito zowerengera ziwiri, zomwe ndi zosavuta, zosavuta, zofulumira komanso zowoneka bwino poyerekeza ndi zida zina zoyezera tinthu [5]. Ubwino womwe uli pamwambapa wa tinthu tating'onoting'ono umapangitsa pang'onopang'ono m'malo mwa njira zina ndikukhala njira yayikulu yoyesera ya ndende ya tinthu. Atha kuwerengera zonse kuchuluka kwa tinthu tating'onoting'ono komanso kukula kwa tinthu (mwachitsanzo, kuwerengera), chomwe ndi chida chachikulu pakuyesaku. Kuthamanga kwa sampuli ndi 28.6 LPM, ndipo pampu yake yopanda kaboni yopanda kaboni imakhala ndi phokoso lochepa komanso magwiridwe antchito okhazikika. Ngati njirayo yaikidwa, kutentha ndi chinyezi komanso kuthamanga kwa mphepo kungayesedwe ndipo fyuluta ikhoza kuyesedwa.
Dongosolo lozindikira limagwiritsa ntchito ma aerosols pogwiritsa ntchito tinthu ta PAO ngati fumbi loti lisefedwe. Timagwiritsa ntchito majenereta a aerosol (mibadwo ya Aerosol) ya mtundu wa TDA-5B wopangidwa ku United States. Zomwe zimachitika ndi 500 - 65000 cfm (1 cfm = 28.6 LPM), ndipo ndende ndi 100 μg / L, 6500 cfm; 10 μg / L, 65000 cfm.
1. 2 chipinda choyera
Pofuna kuwongolera kulondola kwa kuyesako, labotale yamlingo wa 10,000 idapangidwa ndikukongoletsedwa molingana ndi US Federal Standard 209C. Chophimba pansi chimagwiritsidwa ntchito, chomwe chimadziwika ndi ubwino wa terrazzo, kuvala kukana, kusindikiza bwino, kusinthasintha ndi zomangamanga zovuta. Zomwe zimapangidwa ndi epoxy lacquer ndipo khomalo limapangidwa ndi zipinda zoyera. Chipindacho chili ndi 220v, 2 × 40w kuyeretsa nyali 6 ndikukonzedwa molingana ndi zofunikira zowunikira ndi zida zakumunda. Chipinda choyera chili ndi malo olowera mpweya 4 komanso madoko 4 obwerera. Chipinda chosambira cha mpweya chidapangidwa kuti chiziwongolera kukhudza wamba. Nthawi yosambira mumlengalenga ndi 0-100s, ndipo liwiro la mphepo ya nozzle ya voliyumu iliyonse yosinthika yozungulira ndi yayikulu kuposa kapena yofanana ndi 20ms. Chifukwa malo achipinda choyera ndi <50m2 ndipo ogwira ntchito ndi
1. 3 zitsanzo zoyesera
Zitsanzo za galasi CHIKWANGWANI fyuluta ndi: 610 (L) × 610 (H) × 150 (W) mamilimita, baffle mtundu, 75 makwinya, kukula 610 (L) × 610 (H) × 90 (W) Mm, ndi 200 pleats, PTFE fyuluta kukula 480 × 0 × 8 (H) popanda 480 × 8 mm (H) mtundu wa baffle, wokhala ndi makwinya 100.
2 Mfundo zoyambirira
Mfundo yaikulu ya benchi yoyesera ndi yakuti fan imawombedwa mumlengalenga. Popeza HEPA/UEPA ilinso ndi fyuluta ya mpweya ya HEPA, zikhoza kuganiziridwa kuti mpweya wakhala mpweya woyera usanafike HEPA/UEPA yoyesedwa. Chipangizochi chimatulutsa tinthu ta PAO mupaipi kuti tipangire kuchuluka kwa gasi wokhala ndi fumbi ndikugwiritsa ntchito kauntala ya tinthu ta laser kudziwa kuchuluka kwa tinthu. Mpweya wokhala ndi fumbi ndiye umayenda kudzera mu HEPA/UEPA yoyesedwa, ndipo fumbi lomwe lili mumlengalenga lomwe limasefedwa ndi HEPA/UEPA limayezedwanso pogwiritsa ntchito tinthu tating'onoting'ono ta laser, komanso kuchuluka kwa mpweya wa mpweya musanayambe komanso pambuyo pofanizira, potero kudziwa HEPA/UEPA. Sefa machitidwe. Kuphatikiza apo, mabowo akutsanzira amakonzedwa kale komanso pambuyo pa fyuluta, ndipo kukana kwa liwiro lililonse lamphepo kumayesedwa pogwiritsa ntchito choyezera chowongolera chocheperako pano.
3 zosefera kukana magwiridwe antchito
Kukana kwa HEPA ndi chimodzi mwazinthu zofunika kwambiri za HEPA. Pansi pa zomwe zimakwaniritsa zofunikira za anthu, mawonekedwe okana amakhudzana ndi mtengo wogwiritsa ntchito, kukana ndikochepa, kugwiritsa ntchito mphamvu kumakhala kochepa, ndipo mtengo wake umapulumutsidwa. Chifukwa chake, kukana kwa fyuluta kwakhala nkhawa. Chimodzi mwa zizindikiro zofunika.
Malinga ndi kuyesa kuyesa deta, ubale pakati pa avareji liwiro mphepo ya awiri osiyana structural zosefera magalasi CHIKWANGWANI ndi PTFE fyuluta ndi fyuluta kuthamanga kusiyana anapezedwa.Chiyanjano chikuwonetsedwa mu Chithunzi 2:
Zitha kuwoneka kuchokera ku data yoyesera kuti pamene liwiro la mphepo likuwonjezeka, kukana kwa fyuluta kumawonjezeka motsatira kuchokera kumunsi kupita kumtunda, ndipo mizere iwiri yowongoka ya zosefera ziwiri za galasi fiber imagwirizana kwambiri. N'zosavuta kuona kuti pamene kusefera mphepo liwiro ndi 1 m/s, kukana kwa galasi CHIKWANGWANI fyuluta ndi pafupifupi kanayi fyuluta PTFE.
Podziwa dera la fyuluta, ubale wapakati pa liwiro la nkhope ndi kusiyana kwa kuthamanga kwa fyuluta ukhoza kutengedwa:
Zitha kuwoneka kuchokera ku data yoyesera kuti pamene liwiro la mphepo likuwonjezeka, kukana kwa fyuluta kumawonjezeka motsatira kuchokera kumunsi kupita kumtunda, ndipo mizere iwiri yowongoka ya zosefera ziwiri za galasi fiber imagwirizana kwambiri. N'zosavuta kuona kuti pamene kusefera mphepo liwiro ndi 1 m/s, kukana kwa galasi CHIKWANGWANI fyuluta ndi pafupifupi kanayi kuposa PTFE filte.
Podziwa dera la fyuluta, ubale wapakati pa liwiro la nkhope ndi kusiyana kwa kuthamanga kwa fyuluta ukhoza kutengedwa:
Chifukwa cha kusiyana pakati pa liwiro pamwamba pa mitundu iwiri ya zosefera fyuluta ndi fyuluta kuthamanga kusiyana kwa mapepala awiri fyuluta, kukana fyuluta ndi mfundo za 610 × 610 × 90mm pa liwiro lomwelo pamwamba ndi apamwamba kuposa mfundo 610 ×. Kukana kwa fyuluta ya 610 x 150mm.
Komabe, n'zoonekeratu kuti pa liwiro pamwamba chomwecho, kukana kwa galasi CHIKWANGWANI fyuluta ndi apamwamba kuposa kukana kwa PTFE. Zimasonyeza kuti PTFE ndi wapamwamba kuposa galasi CHIKWANGWANI fyuluta malinga ndi kukana ntchito. Kuti mumvetsetse bwino mawonekedwe a galasi fiber fyuluta ndi kukana kwa PTFE, kuyesa kwina kunachitika. Phunzirani mwachindunji kukana kwa mapepala awiri a fyuluta pamene mphepo ya fyuluta ikusintha, zotsatira zoyesera zikuwonetsedwa pansipa:
Izi zimatsimikiziranso mfundo yapitayi kuti kukana kwa pepala lazitsulo la galasi ndilopamwamba kuposa la PTFE pansi pa mphepo yomweyo [6].
4 zosefera kufananitsa magwiridwe antchito
Malinga ndi mikhalidwe yoyesera, kusefa kwa kusefera kwa tinthu tating'onoting'ono tokhala ndi 0.3 μm, 0.5 μm, ndi 1.0 μm pama liwiro osiyanasiyana amphepo kumatha kuyeza, ndipo tchati chotsatirachi chimapezeka:
Mwachiwonekere, kusefera bwino kwa zosefera ziwiri zamagalasi zosefera za 1.0 μm particles pa liwiro losiyana la mphepo ndi 100%, ndipo kusefera kwamphamvu kwa 0,3 μm ndi 0,5 μm particles kumachepa ndi kuwonjezeka kwa liwiro la mphepo. Zitha kuwoneka kuti kusefera kwa fyuluta ku tinthu tating'onoting'ono ndikokwera kwambiri kuposa tinthu tating'onoting'ono, ndipo kusefera kwa 610 × 610 × 150 mm fyuluta ndikwambiri kuposa fyuluta ya 610 × 610 × 90 mm.
Pogwiritsa ntchito njira yomweyi, graph yowonetsa ubale pakati pa kusefera kwa 480×480×70 mm PTFE fyuluta ngati ntchito ya liwiro la mphepo imapezeka:
Poyerekeza mkuyu. 5 ndi mkuyu. 6, kusefera zotsatira za 0,3 μm, 0,5 μm tinthu galasi fyuluta bwino, makamaka 0,3 μm fumbi kusiyana kwenikweni. Kusefera kwa tinthu ting'onoting'ono pa 1 μm particles kunali 100%.
Kuti mufanizire mwachidziwitso momwe kusefera kwa fyuluta yamagalasi ndi zinthu zosefera za PTFE, kuyezetsa magwiridwe antchito kunachitika mwachindunji pamapepala awiriwa, ndipo tchati chotsatiracho chinapezedwa:
Tchati pamwambapa chimapezeka poyesa kusefera kwa PTFE ndi pepala losefera magalasi pa 0.3 μm tinthu tating'onoting'ono ta mphepo [7-8]. Ndizodziwikiratu kuti kusefera kwa pepala la PTFE kusefa ndikotsika kuposa pepala losefera magalasi.
Poganizira katundu kukana ndi katundu kusefera za zinthu fyuluta, n'zosavuta kuona kuti PTFE fyuluta zakuthupi ndi oyenera kupanga coarse kapena sub-HEPA Zosefera, ndi galasi CHIKWANGWANI fyuluta zakuthupi ndi oyenera kupanga HEPA kapena kopitilira muyeso-HEPA Zosefera.
5 Mapeto
Chiyembekezo cha zosefera zosiyanasiyana zimawunikidwa poyerekezera kukana ndi kusefera kwa zosefera za PTFE zokhala ndi zosefera zamagalasi. Kuchokera pakuyesera titha kunena kuti liwiro la mphepo ndi chinthu chofunikira kwambiri chomwe chimakhudza kusefera kwa HEPA mpweya fyuluta. Kuthamanga kwa mphepo, kutsika kwa kusefedwa kwabwino, kumawonekera kwambiri pa PTFE fyuluta, komanso zonse Zosefera za PTFE zimakhala ndi zosefera zochepa kuposa fyuluta ya fiberglass, koma kukana kwake ndikotsika kuposa kwa fyuluta ya galasi. Chifukwa chake, zinthu zosefera za PTFE ndizoyenera kupanga zosefera zowoneka bwino kapena zocheperako, ndipo zinthu zosefera zamagalasi ndizoyenera kupanga. Zosefera zogwira mtima kapena zopambana kwambiri. Magalasi CHIKWANGWANI HEPA fyuluta ndi mfundo za 610 × 610 × 150mm ndi otsika kuposa 610 × 610 × 90mm galasi CHIKWANGWANI HEPA fyuluta, ndi kusefera ntchito bwino kuposa 610 × 610 × 90mm galasi CHIKWANGWANI HEPA fyuluta. Pakali pano, mtengo wazinthu zosefera za PTFE ndizokwera kuposa za fiber galasi. Komabe, poyerekeza ndi galasi CHIKWANGWANI, PTFE ali bwino kutentha kukana, dzimbiri kukana ndi hydrolysis kuposa galasi CHIKWANGWANI. Choncho, zinthu zosiyanasiyana ziyenera kuganiziridwa popanga fyuluta. Phatikizani luso laukadaulo ndi ntchito zachuma.
Zolozera:
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Nthawi yotumiza: Jan-06-2019