Amasistimu wamafeni ethaneli angaqhumisi agcina umoya uhamba lapho inhlansi ingase isho inhlekelele. Ezimayini zamalahle, imigudu yokucubungula amakhemikhali, noma amaphaseji ensiza kawoyela, ukungena komoya akuphathelene nokunethezeka—kumayelana nokuphila. Siye sabona abalandeli behluleka ngaphansi kwengcindezi eshisayo, umlilo ongemuhle ngesikhathi se-methane spikes, noma ukonakala ngemva kwezinyanga eziyisithupha ekugelezeni komoya okugcwele isulfur. Kungakho onjiniyela becacisa amayunithi abalandeli bomhubhe angaqhumi hhayi njengenketho—kodwa njengemfuneko eyisisekelo.
Kungani Abalandeli Be-standard Tunnel Behluleka Ezindaweni Eziyingozi
Ukungena komoya endaweni eyingozi kufuna okungaphezu kwevolumu yokugeleza komoya. Idinga ukuphepha kwangaphakathi—akukho mthombo wokuthungela, akukho ndawo eshisayo, akukho ndlela yokukhipha emile. Abalandeli bomhubhe ojwayelekile we-axial noma oyi-centrifugal basebenzisa amamotho angenisayo anamatheminali asobala, izindlu ezingangeni umoya, namabhulashi ekhabhoni a-arc. E-Zone 1 (lapho kungenzeka khona umoya wegesi eqhumayo) noma ku-Zone 2 (lapho kwenzeka khona ngezikhathi ezithile), lezo zici zephula izindinganiso ze-IEC 60079-0 kanye ne-GB 3836.1 ngokuqondile.
Sihlole abalandeli bomhubhe abathathu abangekho eshalofini emoyeni wasemayini olingisisiwe (5.5% CH₄, 22°C, 95% RH). Konke kweqe umkhawulo wokushisa ongaphezulu ngaphakathi kwemizuzu engama-47. Ama-cutouts amabili aphindwe kathathu ashisayo; omunye uthungele ingxube yegesi yokuhlola phakathi nokuhlinzwa kokuqala. Imbangela? Ama-motor windings angaqinisekisiwe, ama-impeller hubs angagxiliwe, nezinsimbi zepulasitiki ezikhiqiza ishaje ye-electrostatic. Ukwehluleka kwangempela akukona nje okucatshangwayo—kubhalwe encwadini yezigameko ze-State Administration of Work Safety yase-China kusukela ngo-2022–2023.
Yini Eyenza Ifeni Yethaneli Yeqiniso Yokuqhuma?
Ifeni yomhubhe eqinisekisiwe yokuvikela ukuqhuma ihlanganisa izendlalelo ezine ezingaxoxiswana: indawo evalekile yenjini (dⅠ noma i-Ex d IIB T4), idizayini ehlangene engashi (hhayi nje "ukumelana nenhlansi"), izinto ezihambelana nezinga lokushisa, kanye nebhalansi eguquguqukayo eqinisekisiwe ngesivinini esilinganiselwe esingu-110%. Uchungechunge lwe-FBD (dⅠ) oluphenduphendukayo lwe-axial flow fan—eyakhelwe ngokuqondile izihloko zemayini yamalahle angaphansi komhlaba—lusebenzisa amamotho amabili avikela ukuqhuma avalelwe ezindaweni ezivalekile ze-aluminium enegebe elihlangene elingu-0.012 mm. Ama-impellers ayo agijima ku-1,480 rpm kodwa ahlale ngaphansi kwezinga lokushisa elingaphansi kuka-135°C ngisho nakumthwalo ongu-105%. Leyo akuyona ikhophi yokumaketha—leyo idatha elinganiselwe evela kulebhu yethu egunyaziwe ye-ISO 17025.
Kodwa ukuthola isitifiketi akwanele. Sike sabuka amakhasimende efaka amafeni aqinisekisiwe kuphela ukuze athole ukugeleza komoya ngokuwa ngenxa yokumelana nepayipi noma ukwehla kwamandla kagesi kumakhebula amamitha angu-800. Isixazululo sangempela kufanele sibhekane nokuguquguquka kweleveli yesistimu: amajika okucindezela okumile, ukunyakaza kwe-inlet, imiphumela yomswakama osendaweni ekumelaneni nokufakwa kwezimoto, kanye nokuhlanekezeka kwe-harmonic okuvela kumadrayivu aguquguqukayo. Kungakho iyunithi ngayinye ye-FBD ithumela ngejika lokusebenza eliqondene nesayithi—hhayi nje ishadi lekhathalogi—futhi ihlanganisa nezigaxa zokugcina zebhokisi ezinosayizi wocingo lwethusi olungu-35 mm².
Ukwenza Ngokwezifiso Akuyona Ukunethezeka—Kuyisidingo Sokusebenza
Ukulingana-konke akukho ngaphansi komhlaba. Isiphephetha-moya somhubhe we-3.2 m ububanzi be-coal drift sidinga i-thrust ehlukile, iphrofayili yomsindo, kanye nejometri ekhuphukayo kuneyodwa yomgodi wokufinyelela wamakhemikhali ongu-5.8 m. Sakhe okuhlukile ngokwezifiso ezingaphezu kuka-174 ezinyangeni ezingu-27 ezidlule—okuhlanganisa amamodeli ane-titanium-bladed yamapayipi egesi e-H₂S-rich flue, ukulungiselelwa kwe-doal-inlet yamasekhethi ahambisanayo wokungenisa umoya, nezinguqulo eziguquguqukayo ezinemvamisa ephansi ezinciphisa ukudlidliza okuzwakalayo ezindongeni zamatshe eziboshiwe.
Izinsimbi zokwenza ngokwezifiso eziyinhloko esizisebenzisa njalo:
- Ikilasi le-motor winding: Izinga le-H-class insulation, lithuthukiselwe ku-C-class ukuze uthole>200°C izinhlelo zokusebenza ezizungezile
- Impeller impahla: Ingxubevange ye-Aluminium (ejwayelekile), insimbi engagqwali 316 (izindawo ze-chloride), noma i-titanium yeBanga lesi-7 (H₂S + isivinini esiphezulu)
- Control interface: I-RS-485 Modbus RTU efakwe ngaphambili ngezintambo, impendulo ye-analog engu-4–20 mA, noma ukuhlanganiswa kokumiswa kwezimo eziphuthumayo okunentambo eqinile
- Ububanzi besitifiketi: Kuqinisekiswe kabili kukho kokubili i-GB 3836 ne-ATEX 2014/34/EU—kuqinisekiswe yi-CNEX kanye ne-SGS
Ayikho inhlawulo yesikhathi sokuhola esebenzayo. Ulayini wethu wokukhiqiza we-modular uphethe amafreyimu angu-12 angumongo wezimoto, amaphethini okuphonsa ama-impeller angu-8, kanye nezinhlobo ezi-5 zezindlu—konke kuhlolwe kusengaphambili futhi kubhalwe phansi. Imininingwane yangokwezifiso iyakhiya ngaphambi kokuqala komshini, hhayi ngemva kokuhlanganisa.
Ukusebenza Kwangempela Kuqala Ngaphambi Kokufakwa
Ukulethwa akuqediwe. Silandele izinkinga zangemuva kokufakwa kuwo wonke amasayithi angu-41: u-62% ulandelelwa ekusekelweni okungafanele, u-23% ukuya kumakhebuli anikezela ngosayizi abangaphansi, kanye no-15% ekuvinjweni kwe-inlet okubangelwa idizayini yokuguqulwa kwamapayipi. Kungakho wonke ama-oda afaka ukwesekwa kobunjiniyela bohlelo lwamahhala—hhayi nje imibhalo ye-PDF. Ithimba lethu libuyekeza ingxenye yakho ye-tunnel, ukwakheka kwegesi okulindelekile, ukuqina komthombo wamandla, kanye nezingqinamba zokufinyelela ekulungiseni. Senza imodeli yokubola kokugeleza komoya kuwo wonke amamitha angu-200+ we-ductwork kanye nezingozi zokwehla kwamandla kagesi wefulegi ngaphambi kokusika ukhonkolo.
I-Zibo Hongcheng Fan Co., Ltd. yakha lawa mayunithi endaweni yayo engu-9,000 m² i-Zibo Blower Industrial Park—lapho wonke umlandeli ebhekana nokuhlolwa komthwalo okuqhubekayo kwamahora angu-72 ngengcindezi elinganiselwe egcwele, elandelwa ukuskena kwe-thermographic kanye nesilinganiso sokukhipha ingxenye. Uthola umbiko wokuhlola osayiniwe, hhayi isitikha sesitifiketi. Ngoba lapho ukugxilwa kwe-methane kufinyelela ku-4.3%, okubalulekile akuwona amaphepha okuthobela umthetho—ukuthi ingabe ifeni iyaqhubeka yini nokuphotha.
Konjiniyela abacacisa amasistimu abalandeli bomhubhe angaqhumi, umbuzo awukona ukuthi “Yiluphi uhlobo?” Ithi “Yimuphi uzakwethu oqondayo ukuthi ukwehluleka kokukhipha umoya akusona isikhathi sokuphumula—kuyingozi.” Lokho kuqonda kuhlala ekubekezeleleni kwe-weld seam, amandla e-dielectric asonga i-motor, kanye nekhono likachwepheshe lokuqinisekisa ukuqhubeka kwesisekelo endaweni. Kulapho ukuphepha kwangempela kuqala khona—futhi lapho kungafanele kuphele khona.
