Ukukhetha okulungile Izinhlobo ze-PANERIFUGAL FAN ayimayelana nokufanisa inombolo yekhathalogi ne-nameplate. Imayelana nokuxazulula inkinga yangempela—ukuhambisa umoya ngokumelene nokumelana, ukuphatha intuthu eyonakalisayo, ukusinda emifudlaneni yokukhipha umoya engu-200°C, noma ukugcina imayini yamalahle ingenisa umoya ngaphansi kwezimo eziyingozi yokuqhuma. Silinganise, sahlola, futhi sasebenzisa abalandeli be-centrifugal abangaphezu kuka-1,200 kusukela ngo-2020—futhi kuzo zonke izimo, uhlobo olungalungile lubangele ukubambezeleka, ukuyekethisa kwezokuphepha, noma ukwehluleka ngaphambi kwesikhathi.
Kungani "Uhlobo" Lubaluleke Kakhulu Kunosayizi Noma Isivinini
Isivutheli se-centrifugal esinengcindezi ephezulu engu-9-19 sihambisa umoya ngendlela ehlukile kunefeni ye-centrifugal enezimbili ezimbili—ngisho nange-RPM efanayo kanye nengcindezi emile. Umehluko ulele ku-impeller geometry, i-casing design, kanye nendlela yokugeleza komoya. Ama-impeller agobe emuva aphatha igesi egcwele uthuli ngaphandle kokuyivala. Amayunithi agobile phambili aletha ivolomu ephezulu ngengcindezi emile ephansi—kodwa ehluleka ngokushesha ezindaweni ezihuzukayo. Ama-radial-tip ahlala phakathi kwawo: ukusebenza kahle okusesilinganisweni, ukubekezelela okuphezulu kwezinhlayiya, kanye nobulula bomshini obubalulekile ngesikhathi sokulungiswa kumasayithi ohhobho akude.
Sake sashintsha ifeni ehlulekile egobile phambili kulayini wokudaya wezindwangu ngemodeli ebheke emuva. Iyunithi yokuqala yahlala izinyanga ezi-4. Entsha yathatha izinyanga ezingu-37—ingekho enye insimbi, ibhande alisheleli, akukho ukwehla kokugeleza komoya. Kungani? Ngoba uhlelo lokusebenza ludinga isiyaluyalu esiphansi, hhayi i-CFM ephezulu. Lona umthetho wokuqala: fanisa ne uhlobo kwe ukuziphatha kwe-airstream, hhayi nje ishadi lokudonsa.
Izinhlobo Ezine Zabalandeli Be-Centrifugal Ezine—Futhi Lapho Zihluleka Khona
Abasebenzisi bezimboni abazidingi izigaba zezemfundo. Badinga i-logic yesinqumo. Nakhu okusebenzayo-futhi lapho uhlobo ngalunye luphuka khona:
- Abalandeli be-backward-curved (BC).: Ilungele isevisi ye-high-static, izinga lokushisa eliphezulu, noma ebolayo—njengezitaki ze-desulfurization noma i-boiler primary air. Ama-impeller blades asuka ekujikelezeni. Ukusebenza kahle kufinyelela ku-82-87%. Kodwa bafuna ukulungiswa kwe-inlet okunembe; imigudu engalungile ibangela ukundindizela okuqhekeza izindlu. Amamodeli ethu e-BC (isb., okuhlukile kokunqanda ukugqwala okunama-casings ahlanganiswe ne-FRP) afaka amakhoni wokungenisa aqondaniswe ne-laser njengokujwayelekile.
- Abalandeli be-Forward-curved (FC).: Ihlangene, ithule, futhi inevolumu ephezulu ekumelaneni okuphansi—ilungele umoya wokwenza i-HVAC noma ukujikeleza kabusha kwegumbi elihlanzekile. Kodwa bagcina kalula ngaphezu kwe-150 Pa static pressure. Sike sabona amayunithi amathathu e-FC ehluleka emigqeni yokubuyisela i-solvent yezitshalo zamakhemikhali ngenxa yokuthi o-opharetha bashaye indiva ijika elikhuphukayo lokucindezela. Azakhelwe ukumelana nokuguquguquka.
- Abalandeli be-radial-tip (RT).: Amahhashi okusebenza omsebenzi owubhuqu, oswakeme, noma olimaza kancane—ukungenisa umoya ezimayini, ukupholisa i-foundry, i-rotary kiln exhaust. Ama-blades anwebeka aqonde, amelana nokwakheka. Ukusebenza kahle okuphezulu okuphezulu (72-78%) kuyathengiswa ukuze kuthembeke. Kuhlelo lokusebenza olulodwa lwe-sinter cooler yeklayenti le-metallurgical, abalandeli be-RT banciphise isikhathi sokuphumula esingahlelelwe ngama-63% uma kuqhathaniswa nezinye izindlela ze-BC.
- Abalandeli be-centrifugal abangenisa kabili: Ama-impeller amabili ku-shaft eyodwa, adonsa umoya ezinhlangothini zombili. Iletha ukugeleza okulinganayo ngaphandle kwe-asymmetry ye-duct. Okubalulekile lapho isikhala siqinile kodwa ukugeleza komoya kufanele kuhlale kuzinzile—njengamaphothali okukhipha umoya womhubhe noma amasistimu akhipha intuthu abekwe ophahleni. Kodwa-ke, zidinga ukufakwa kwesisekelo esiqinile. Ukushintsha kwesisekelo esingu-2 mm kudale ukuzwakala kuphrojekthi yakamuva kwaze kwaba sengeza amaphedi okubamba ihange angashiyi.
Lokho Ikhathalogi Engeke Ikutshele kona
Abanye bangase baphikise ngokuthi ukukhethwa kwezinto ezibonakalayo trumps uhlobo impeller. Kodwa sibone abalandeli be-titanium abanokumelana nokugqwala okuphelele behluleka ngoba i-impeller egobile emuva ayikwazanga ukuthwala umlotha wempukane. Uhlobo luchaza i-physics. Okubalulekile kuchaza iwindi lokusinda.
Amaqiniso amathathu aqinile avela kudatha yasensimini:
- Amajika okucindezela amanga. Umlandeli olinganiselwe nge-“12 kPa @ 25,000 m³/h” uthatha izimo ezifanele zokungena. Izindololwane zamapayipi omhlaba wangempela, ama-dampers, nezihlungi zehlisa ukusebenza kwangempela ngo-12–18%. Hlala uhlola ezingeni lesistimu—hhayi nje abalandeli kuphela.
- Isitifiketi sokuvikela ukuqhuma (isb., dⅠ sezimayini zamalahle) sisebenza ekuhlanganisweni okugcwele—hhayi nje injini. Injini eqinisekisiwe eboshelwe ekuthotshelweni kwezindlu okungagunyaziwe ivalela ukuthotshelwa kwezindlu. Ukuhlanganiswa kwethu kochungechunge lwe-FBD kufaka phakathi ukucaciswa kwe-impeller ukumelana nenhlansi nezindlela ezimile ezisekelwe phansi eziqinisekisiwe nge-GB 3836.1 ngayinye.
- Ukulinganisa okunamandla akuyona inketho. Abalandeli be-BC abangalinganiseli badlidliza ngo-1,450 RPM. Ku-2,900 RPM, lokho kungalingani okufanayo kuphindaphinda amandla ngokuphindwe kane. Wonke umlandeli we-Hongcheng centrifugal uthola ukulinganisa kwe-ISO 1940 G2.5—kukalwe, akucatshangwa.
Indlela Yokukhetha—Uhlu Lokuhlola Lwenkundla Lwemizuzu Emihlanu
Ngaphambi kokuvula ishidi elithile, phendula le mibuzo emihlanu:
- Yini i umfutho we-static ophezulu oqhubekayo-hhayi inani eliphakeme, hhayi ithiyori? Lilinganise nge-manometer endaweni yokungena fan, ngaphansi komthwalo ogcwele.
- Ingabe i-airstream iqukethe ama-abrasives, umswakama, noma amakhemikhali? Uma kunjalo, susa i-front-curved. Beka kuqala ithiphu ye-radial noma ijika emuva-egobe ngamanamathela okuvikela.
- Ingabe isikhala sibambekile? I-Dual-inlet ilondoloza unyawo kodwa idinga ukuqina kwesakhiwo. I-inlet eyodwa enekhoni yokungena enwetshiwe ingase ibe lula.
- Ingabe opharetha bazokulungisa ukugeleza njalo? Izibambi ezigobile emuva ziphumputha kangcono. Ukukhuphuka okujikele phambili ngokungalindelekile ngaphansi kwesivinini esingu-60%.
- Yini i izindleko zokwehluleka? Ukuvalwa kwendlu kabhayela kubiza u-$18,000/ihora. Khokha ngaphambili ukuze uthole ukuqapha okugobile okungemuva-okugobile + okuhlanganisiwe—hhayi kamuva ukuze kulungiswe izimo eziphuthumayo.
Izinhlobo zabalandeli be-Centrifugal azizona izingxenye ezishintshayo. Ziyizimpendulo ezakhelwe ngaphakathi kwezithiyo zomzimba. Khetha uhlobo oluhlonipha umoya wakho, indawo okuyo, kanye nemigomo yakho yesikhathi sokusebenza—hhayi lelo elinencwajana ecwebe kakhulu.
