Iifeni zetonela likaloliwe zigcina umoya uhamba xa ubomi buxhomekeke kuwo. Azikho izixhobo zokugcina-ziyindlela yokuqala yokukhusela kumsi, ukushisa, kunye nokwakhiwa okunetyhefu ngexesha likaxakeka. Sifake, savavanya, kwaye sinengxaki fan fannel fannel fan iinkqubo kwiiprojekthi zemetro ezili-12 kulo lonke elaseTshayina nakuMzantsi-mpuma Asia. Kolunye ulwandiso lwaseBeijing, umlandeli ongaphumelelanga ubangele ukulibaziseka kwemizuzu engama-47 yokuphola ngokukhawuleza ngexesha lokudubula komlilo-ixesha elaneleyo lokuba amanqanaba e-CO awele umda wokhuseleko we-300 ppm. Eso siganeko sayitshintsha indlela esichaza ngayo, sivavanya, kwaye sigunyazise ezi yunithi.
Kutheni amaFani aMgangatho angaphumeleli phantsi komhlaba
Uninzi lwabalandeli bemizi-mveliso bawa phantsi kweemeko zikaloliwe ongaphantsi komhlaba-hayi ukusuka kumthwalo ogqithisileyo, kodwa kwinjongo yoyilo olungahambelaniyo. Ifeni ye-axial yenjongo jikelele inokushukuma i-120,000 m³/h nge-500 Pa yoxinzelelo olungagungqiyo ephepheni. Kodwa ngaphantsi komhlaba? Ijongana ne-85% yokufuma unyaka wonke, umoya ogcwele ikloridi kufutshane netonela engaselunxwemeni, intshukumo esuka koololiwe abadlulayo (ukuya kuthi ga kwi-12 Hz kwi-0.8 mm amplitude), kunye ne-zero margin yokuqhutywa kwe-thermal. Siye sabona iimoto zitshisa kakhulu ngeentsuku ezingama-90 ngenxa yokuba udidi lwe-insulation F luchaziwe-kodwa i-ambient tunnel temps ibetha rhoqo kwi-52 ° C ngexesha lokusebenza kwehlobo.
Inqaku lokusilela lokwenyani alikho ukuhamba komoya-kukuthembeka phantsi koxinzelelo oludibeneyo. Iimfuno ezintathu ezingaxoxiswana zahlula iiyunithi zodidi lukaloliwe ohamba ngaphantsi komhlaba kwisitokhwe sekhathalogu:
- Isiqinisekiso sobungqina bokudubula (GB 3836.1–2021) yeendawo ezinemethane-prone okanye ujongano lwebhetri-tonela
- Ukhuseleko oluqhubekayo lwe-IP55+, kunye neebheringi ezivaliweyo ze-silicone kunye ne-stainless-steel fasteners
- Dynamic balance grade G2.5 okanye ngcono, iqinisekiswe kwi-110% yesantya esiphezulu sokusebenza-kungekhona nje isantya esilinganiselwe
Ngaphandle kobathathu, imijikelo yokulondolozwa iyancipha nge-60%. Umxhasi omnye utshintshe abalandeli rhoqo kwiinyanga ezili-14 ade atshintshele kuyilo lwe-axial olujikelezayo olunezijikelezo ezimbini ezizimeleyo. Ixesha labo elitsha: iinyanga ezingama-47.
Uthotho lwe-FBD: Yakhelwe iinyani zeTunnel, hayi iiLab Sheets
Uchungechunge lwe-FBD (dⅠ) lububungqina bokuqhuma-i-injection-injection counter-rotating axial flow local ventilation fan isombulula ukuba yintoni abalandeli betonela abaqhelekileyo abangayihoyiyo: ulawulo lwecala kunye nokuphendula okwethutyana. Indibano yayo ye-rotor yamanqanaba amabini-i-impellers yangaphambili kunye ne-impellers ejikelezayo ejikelezayo kwicala elichaseneyo-ihambisa i-22% ephezulu ye-static esebenzayo kune-single-stage equivalents kwi-1,800 Pa efanayo yokunyuka koxinzelelo. Okubaluleke ngakumbi, ifezekisa ukuhamba komoya okupheleleyo ngaphakathi kwemizuzwana eyi-2.3 yokuqalisa. Oko kubalulekile xa ukufunyaniswa komsi kubangela ukungena komoya phambi kokuba ukubonakala kwehle ngaphantsi kweemitha ezili-10.
Asicaphuli nje iinkcazo-siyaziqinisekisa. Yonke iyunithi ye-FBD ifumana:
- Uvavanyo lweyure ye-48 yetyuwa-spray (ISO 9227) kwi-5% yoxinaniso lwe-NaCl
- Ukunyamezela kwe-Vibration kwi-15 g yokunyusa i-peak ye-10 yezigidi zemijikelezo
- I-Thermal Runaway simulation: i-motor windings ifudunyezwe ukuya kwi-180 ° C, emva koko iphole ngokukhawuleza ukuya kwi-20 ° C - iphindwe ngamaxesha angama-200.
Oku asikobunjineli obugqithisileyo. Idibanisa i-hardware kwimvulophu yokusebenza. Xa umlilo wetonela ufika kuma-600°C, abalandeli abakufutshane kufuneka baphile kubushushu obubengezelayo ixesha elide ngokwaneleyo ukuze basuse iindlela zokuphuma. Iiyunithi ze-FBD ziphumelele iimvavanyo zokuvezwa kwimizuzu engama-90 kwi-750 ° C yobushushu bomhlaba ngaphandle kokuguqulwa kwesakhiwo.
Ukwenza ngokwezifiso akunyanzelekanga-Kuyafuneka yiFiziksi
"I-off-the-shelf" ayikho kubalandeli betonela likaloliwe. Idayamitha yetonela, igradient, ukuphindaphindwa koololiwe, kunye neprofayile yomthwalo womlilo iyalela ijometri yefeni, hayi iincwadana zentengiso. Itonela eyi-5.8 m yedayamitha ene-3% yokuthambeka idinga i-blade twist eyahlukileyo kunye ne-hub ratio kune-4.2 m yecandelo elisicaba-nokuba zombini zifuna i-150,000 m³/h.
Siqala yonke iprojekthi ngedatha eqokelelwe kwindawo-hayi ingqikelelo. Iinjineli zethu zilinganisa:
- Uxinaniso lwenxalenye ye-Ambient (PM₁₀ kunye ne-PM₂.₅) ngaphezulu kweeyure ezingama-72
- Isiseko se-CO₂ kunye nogxininiso lwe-NOₓ ngexesha lenkonzo yencopho
- Isantya sokuphuma kwamanzi aphantsi komhlaba kwiindawo zegumbi labalandeli
Loo data drives izigqibo akukho spec sheet can: nokuba kusetyenziswe titanium alloy blades (for chloride resistance), nokuba kufakwe thermocouples kwi motor windings (for predictive shutdown), okanye ukudibanisa CAN bus communication for real-time status reporting to SCADA. Indawo enye ye-Guangzhou Line 11 ifune abalandeli be-centrifugal abanganyangekiyo kunye ne-Hastelloy C-276 casings-kuba amanzi aphantsi komhlaba alinganisa i-3.2. Intsimbi yekhabhoni eqhelekileyo ibinokonakala kwiinyanga ezili-11.
Jonga Ngaphaya kweFan-Jonga kwiNkqubo
I-fan yetonela kaloliwe ilungile kuphela njengokudityaniswa kwayo. Siye sabona abalandeli benqanaba eliphezulu besilela ngenxa yokuba izibiyeli ezixhomayo ziye zavakala kwi-42 Hz-ixesha elifanayo lokudlula oololiwe beemoto ezisi-8. Ulungiso lwalungengomlandeli omtsha. Yayilungiswa i-dampers enkulu edityanisiweyo kwisakhelo senkxaso kunye neepads zokuzihlukanisa kunye ne-0.035 mm yokunyamezela ukuphambuka.
Ukhuseleko lokwenyani luvela kwinkqubo yokucinga: imodeli yokuhamba komoya (usebenzisa i-ANSYS I-Fluent kunye ne-tunnel ye-tunnel yangempela), unyango lwe-acoustic (ukugcina ingxolo engaphantsi kwe-85 dBA kwizikhululo zabaqhubi), kunye ne-redundancy architecture (ubumbeko lwe-N + 1 kunye nokutshintsha okuzenzekelayo kwi- <1.2 imizuzwana). Yonke iZibo Hongcheng fan fannel fannel fan iinqanawa ezine-torque-slip curves, iingxelo zokugqwethwa kwe-harmonic, kunye nezishwankathelo zovavanyo lokuhambelana ne-electromagnetic-hayi nje uphawu lwe-CE.
Ukuthembeka akufezekiswanga kumzi-mveliso. Kungqinwe kwitonela-imihla ngemihla, ukucinywa komlilo emva kokudubula komlilo, ishumi leminyaka emva kweshumi leminyaka. Yiyo loo nto sakhela olona tshintsho lubi kakhulu, elona hlobo lishushu, kunye nolona phazamiseko lude lwamandla. Kuba xa umsi ugcwalisa ipaseji, akukho "kulunga ngokwaneleyo." Ikhona kuphela into esebenzayo.
