Makina otenthetsera ngalande omwe saphulika amapangitsa kuti mpweya uziyenda pamalo pomwe kuphulika kungatanthauze tsoka. M'migodi ya malasha, ngalande zopangira mankhwala, kapena m'malo opangira mafuta, mpweya wabwino sikutanthauza kutonthozedwa - ndi kupulumuka. Tawonapo mafani akulephera chifukwa cha kupsinjika kwamafuta, kuwotcha pamiyendo ya methane, kapena kuwononga pakatha miyezi isanu ndi umodzi mumlengalenga wodzaza ndi sulfure. Ichi ndichifukwa chake mainjiniya amafotokozera mafani achitetezo osaphulika osati ngati njira - koma ngati chofunikira.
Chifukwa chiyani Mafani a Tunnel Okhazikika Amalephera M'malo Owopsa
Mpweya wabwino wa m'dera lowopsa umafuna zambiri kuposa kuchuluka kwa mpweya. Zimafuna chitetezo chamkati - palibe poyatsira moto, palibe malo otentha, palibe njira yotulutsira. Mafani amtundu wa axial kapena centrifugal tunnel amagwiritsa ntchito ma induction motors okhala ndi ma terminals owonekera, nyumba zopanda mpweya, ndi maburashi a kaboni omwe amazungulira. Ku Zone 1 (komwe mpweya wophulika umakhalapo) kapena Zone 2 (komwe zimachitika mwa apo ndi apo), zinthuzi zimaphwanya miyezo ya IEC 60079-0 ndi GB 3836.1.
Tidayesa mafani atatu oyenda pashelufu mumphepo yoyeserera yanga (5.5% CH₄, 22°C, 95% RH). Zonse zidadutsa malire a kutentha kwapakati pa mphindi 47. Zodulidwa ziwiri zopukutira kutentha; wina adayatsa kusakanikirana kwa gasi panthawi yoyambira. Chifukwa chake? Ma windings amoto osatsimikizika, ma impeller hubs osakhazikika, ndi zomangira za pulasitiki zomwe zimapanga ma electrostatic charge. Kulephera kwenikweni kwapadziko lonse lapansi sikungopeka - kwalembedwa mu zolemba zachitetezo cha State Administration of Work Safety ku China kuyambira 2022-2023.
Kodi Chimapanga Fani Yeniyeni Yotsimikizira Kuphulika kwa Tunnel?
Chifaniziro chotsimikizika chotsimikizira kuphulika kwa ngalande chimaphatikiza zigawo zinayi zomwe sizingakambirane: zotchinga zamagalimoto (dⅠ kapena Ex d IIB T4), kapangidwe kamene kamalumikizana ndi moto (osati "kusamva kutentha"), zipangizo zofananira ndi kutentha, ndi mphamvu zowonongeka zimatsimikiziridwa pa liwiro la 110%. Gulu la FBD (dⅠ) lotembenuza axial flow fan - lopangidwira mitu yamigodi ya malasha apansi panthaka, limagwiritsa ntchito ma motors apawiri osaphulika omwe amakhala m'mipanda ya aluminiyamu yokhala ndi kusiyana kwakukulu kwa 0.012 mm. Zotulutsa zake zimathamanga pa 1,480 rpm koma zimakhala pansi pa 135 ° C kutentha kwapamwamba ngakhale pa katundu wa 105%. Imeneyo si kopi yotsatsa, ndiyomwe imayesedwa kuchokera ku labotale yathu yovomerezeka ya ISO 17025.
Koma certification yokha sikokwanira. Tawona makasitomala akuyika mafani ovomerezeka kuti apeze kugwa kwa mpweya chifukwa cha kusagwirizana kwa ma ducts kapena kutsika kwa magetsi pamakina a ma 800-mita. Yankho loona liyenera kuwerengera zosintha zamakina: ma static pressure curve, chipwirikiti cholowera, chinyontho chokhazikika pamakina oletsa kutsuka kwa ma motor, ndi kusokonekera kwa ma harmonic kuchokera kuma drive-frequency drive. Ichi ndichifukwa chake gawo lililonse la FBD limatumiza mokhotakhota malingana ndi malo ake—osati tchati chabe—ndipo imaphatikizaponso zingwe zoyatsira mabokosi amtundu wa waya wamkuwa wa 35 mm².
Kupanga Mwamakonda Sikosangalatsa - Ndikofunikira Pantchito
Kufanana kwamtundu umodzi kulibe mobisa. Chokupizira mumphangacho chotengera malasha m'mimba mwake 3.2 m'mimba mwake chimafunikira kusuntha kosiyana, mawonekedwe aphokoso, ndi ma geometry okwera kuposa imodzi ya shaft yofikira kumitengo yama 5.8 m. Tapanga mitundu yopitilira 174 m'miyezi 27 yapitayi, kuphatikiza mitundu ya titaniyamu ya ma ducts amafuta a H₂S-rich flue, masinthidwe anjira ziwiri zamagawo olowera mpweya wofanana, komanso mitundu yocheperako yomwe imachepetsa kugwedezeka kwa makoma amiyala.
Zowongolera makonda zomwe timagwiritsa ntchito pafupipafupi:
- Mtundu wamagetsi amagetsi: H-class insulation standard standard, upgraded to C-class for>200°C application yozungulira
- Impeller zinthu: Aluminiyamu aloyi (wokhazikika), chitsulo chosapanga dzimbiri 316 (malo a chloride), kapena titaniyamu wa Giredi 7 (H₂S + kuthamanga kwambiri)
- Control mawonekedwe: RS-485 Modbus RTU yolumikizidwa kale, mayankho a analogi a 4–20 mA, kapena kuyimitsidwa kwadzidzidzi kwadzidzidzi
- Kuchuluka kwa ziphaso: Zotsimikizika ziwiri za GB 3836 ndi ATEX 2014/34/EU—zotsimikiziridwa ndi CNEX ndi SGS
Palibe chilango chanthawi yotsogolera chomwe chikugwira ntchito. Chingwe chathu chopangira ma modular chimakhala ndi mafelemu oyambira 12, ma impeller 8, ndi mitundu 5 ya nyumba - zonse zidayesedwa kale ndikulembedwa. Zodziwika bwino zimatsekeka makina asanayambike, osati pambuyo pomanga.
Zochitika Zenizeni Zimayamba Musanayike
Kutumiza sikumalizidwa. Tatsata zomwe zachitika pambuyo poika mawebusayiti pamasamba 41: 62% idatsata kukhazikitsidwa kosayenera, 23% mpaka ma chingwe ocheperako, ndipo 15% kutsekeka komwe kumachitika chifukwa cha kusanja bwino kwa ma ducts. Ichi ndichifukwa chake kuyitanitsa kulikonse kumaphatikizapo chithandizo chauinjiniya chaulere - osati zolemba za PDF zokha. Gulu lathu limawunikanso magawo anu amsewu, kuchuluka kwa gasi yemwe akuyembekezeka, kukhazikika kwa gwero lamagetsi, komanso zoletsa kuti musamayendere bwino. Timatsanzira kuwonongeka kwa mpweya kudutsa mamita 200+ a ma ductwork ndi zoopsa za kutsika kwa mbendera musanadule konkire.
Zibo Hongcheng Fan Co., Ltd. imamanga mayunitsiwa pamalo ake okwana 9,000 m² Zibo Blower Industrial Park—komwe zimakupiza aliyense amayesedwa mosalekeza kwa maola 72 mothamanga kwambiri, kutsatiridwa ndi kusanthula kwa kutentha ndi kuyeza kutulutsa pang'ono. Mumalandila lipoti losayinidwa, osati zomata. Chifukwa pamene ndende ya methane igunda 4.3%, chomwe chili chofunika si zolemba - ndizomwe zimakupiza zimangoyendayenda.
Kwa mainjiniya omwe amawonetsa makina ofananirako osaphulika, funso si "mtundu uti?" Ndi "Ndi mnzake uti amene amamvetsetsa kuti kulephera kwa mpweya si nthawi yopumira -ndizowopsa." Kumvetsetsa kumeneku kumakhala mu kulolerana kwa seam weld, mphamvu ya dielectric ya injini yokhotakhota, komanso luso laukadaulo lotsimikizira kupitilizabe komwe kulipo. Ndipamene chitetezo chenicheni chimayambira-ndipo sichiyenera kutha.
