Tsarin sarrafa kayan aiki yana buƙatar mafitacin kwararar iska wanda ke yin fiye da motsa iska kawai—dole ne su sarrafa daskararru, sarrafa ƙura, hana toshewa, da kiyaye daidaiton saurin tafiya a kan hanyoyin da ba su dace ba ko a kusurwa. Lokacin da daidaitattun masu sha'awar centrifugal suna kokawa akan tudu masu gangara, masu aiki suna fuskantar zubewa, jujjuyawar kayan, da isar da ƙarancin inganci. Nan ne inda Karkatar da fatalin fan miliyan yana ba da aikin aunawa-ba a matsayin bambance-bambancen niche ba, amma azaman martanin injiniya ga matsalar ilimin lissafi ta duniya.
Mun girka sama da magoya baya 120 masu ni'ima a cikin layukan preheater siminti, tsarin ciyar da tukunyar tukunyar kwal, da masana'antar sarrafa ma'adinai a Shandong da Shanxi. A kowane hali, maƙasudin gazawar ba ƙarfin fan ba ne - shugabanci ne na iska. Madaidaitan masu busa radial suna fitarwa daidai gwargwado zuwa juyawa. A kan 25°-45° chute, wanda ke haifar da ɓangarorin rarrabuwar kawuna a bayan ƙullun kayan. Mafita? Gidan da aka sake daidaitawa, ingantacciyar kusurwar ban ruwa mai shiga, da ingantattun lissafi na casing-wanda aka ƙirƙira ba don “daidaita” ga sha’awa ba, amma don amfani da shi.
Hukunce-hukuncen fasaha guda uku sun raba manyan ƙwararrun ƙwararrun ƙwararrun magoya bayan centrifugal daga raka'o'in manufa na gaba ɗaya:
- Daidaita axis: The kanti flange yana jujjuya 15° – 30° dangane da injin shaft, matching da hankula chute kusurwoyi ba tare da bututu gwiwar hannu ko kwarara-hargitsi mika mulki.
- Impeller ruwa karkatar bayanin martaba: Gishiri mai lankwasa na gaba tare da rarraba farar asymmetric yana riƙe da matsa lamba sama da 3,200 Pa-har ma a 45% rage yawan kwararar juzu'i wanda ya haifar da asarar gogayya.
- Tushen hawa rigidity: Haɗe-haɗen ƙafafu na tsari suna ɗaukar rawar jiki a mitoci na gama gari a cikin masu ba da jijjiga (12-18 Hz), yana hana lalacewa mai haifar da resonance.
Wasu na iya jayayya cewa fanan axial ducted yana samun sakamako iri ɗaya a ƙananan farashi. Amma bayanan filin suna ba da wani labari: raka'a axial sun rasa kashi 68% na matsa lamba a lokacin da ake sarrafa tarar dutsen farar ƙasa a 42° karkata, yayin da magoya bayan mu na centrifugal suka riƙe 91% na matsa lamba a kusurwa ɗaya da lodi. Me yasa? Zane-zane na axial sun dogara da kwararar laminar-ba zai yuwu a kan m, chutes marasa tsari ba. Ƙarfin centrifugal, duk da haka, yana aiki kai tsaye zuwa nauyi. Yana tura ɓangarorin *cikin* saman saman, yana ƙara tasiri mai tasiri da rage zamewar baya. Mun tabbatar da hakan yayin gwajin ci gaba na sa'o'i 72 a wata shukar bulo mai jujjuyawa: saurin kayan ya tsaya tsakanin ± 3% na maƙasudi a cikin canje-canjen canji guda uku, ba a buƙatar gyara da hannu.
Mai son Chute Centrifugal Fan
Keɓancewa ba na zaɓi ba - an gina shi cikin ƙayyadaddun tsari. Kowane fan na centrifugal mai niyya da muke ginawa yana farawa tare da ma'aunin gangara, ƙididdigar girman ɓangarorin (ta hanyar diffraction Laser), da zafin jiki / yanayin zafi sama da awanni 48. Kawai sai mu zaɓi impeller abu sa: Q345B karfe for general-taƙawa aikace-aikace, 1Cr18Ni9Ti bakin ga rigar ci handling, ko titanium gami TC4 ga sulfur-saukar flue gas muhallin. Zaɓin mota yana biye da taswirar sake zagayowar aiki mai tsauri - Ingancin IE3 daidaitaccen daidai ne, amma mun ƙididdige IE4 tare da mitoci masu canzawa lokacin da jujjuyawar lodi ta wuce 40% tsakanin kololuwa da aiki. Matsakaicin hawa sun haɗa da izinin faɗaɗa thermal har zuwa mm 12-mahimmanci lokacin shigar da madaidaitan bututun shaye-shaye da ke aiki a zazzabi na 280°C.
Zibo Hongcheng Fan Co., Ltd. yana kerar waɗannan raka'a a cikin gida a wurin aikin sa na 9,000 m² a Zibo Blower Industrial Park. Babu fitar da kayan aikin subssembly. Kowane impeller yana jure ma'auni mai ƙarfi zuwa G2.5 ISO 1940-1 haƙuri - an tabbatar da shi tare da firikwensin laser calibrated, ba kawai ma'auni na kanti ba. Gwajin ƙarshe ya haɗa da mintuna 120 na cikakken aiki mai ɗaukar nauyi a 110% ƙimar ƙimar, tare da saka idanu na ainihin lokacin haɓakar zafin jiki (max ΔT = 28 ° C), jujjuyawar casing (<0.12 mm), da matakan fitarwa na sauti (<82 dB (A)). Dukkan rahotannin gwajin jigilar kaya tare da naúrar. Za ku sami cikakkun takaddun fasaha-ciki har da zane-zane mai girma, ƙayyadaddun ƙayyadaddun ƙarfi, da jerin abubuwan farawa-a hongchengfan.com.Magoya bayan Ciwon Ciki
Da Karkatar da fatalin fan miliyan yana magance matsala mai sauƙi mai yaudara: motsin abu sama ba tare da rasa iko ba. Ba ya maye gurbin masu isar da saƙo ko masu ciyarwa. Yana sa su yi aiki da dogaro. A cikin ayyukan hakar ma'adinai inda wuraren dakatarwar da ba a shirya su ba $ 18,000 / awa a cikin raguwar lokaci, ko a cikin tsire-tsire masu sinadarai inda tarin ƙura ke haifar da cin zarafi na ATEX, wannan ba game da kwararar iska ba ne - game da ci gaba da aiki ne. Yayin da hanyoyin masana'antu ke haɓaka haɗin gwiwa da ƙarancin gafartawa, aikin fan yana canzawa daga bangaren taimako zuwa mai ba da tsarin. Shi ya sa muke injiniyan kowace naúrar don ƙayyadaddun ƙayyadaddun sa—ba don shafin kasida ba.
