Kuwongolera Kusiyanasiyana kwa Utsi kwa Kuwunika Kwachilengedwe Kwachilengedwe 

Kuwongolera kufalikira kwa utsi kumafunika ngati kuyang'anira chilengedwe kumafuna kulondola, osati kungongoganizira chabe. Tayika pa 120 kasupe ndi machitidwe owonetsera madzi m'mapaki a mafakitale, masukulu anzeru, ndi eco-zones kuyambira 2006. M'mapulojekiti atatu chaka chatha-awiri ku Shenyang's Heping District ndi imodzi pa malo opangira mankhwala - tidakumana ndi zovuta zofanana: utsi wautsi wochokera ku ma boiler oyandikana nawo adasokoneza kuwerenga kwa sensa, ndi ma alarm abodza. Ndipamene tinasiya kuchitira utsi ngati phokoso lakumbuyo-ndikuyamba kuwongolera kufalikira kwake.

Chifukwa Chake Diffusion Range Ndi Yosinthika Yeniyeni Pakuwunika Kwachilengedwe

Magulu ambiri amayang'ana kwambiri kukhudzidwa kwa sensa kapena ma frequency a calibration. Koma deta yathu yam'munda ikuwonetsa kusiyanasiyana kumawongolera kudalirika kwa kuyeza. Utsi sumachita ngati mpweya woyera. Kachulukidwe ka tinthu ting'onoting'ono twake, kusiyana kwa kutentha, ndi kukameta kwa mphepo komwe kumayendera zimadalira kutalika kwa zomwe zimayenda zisanachedwe kuti ziwonekere. Pakuyesa kumodzi pafupi ndi chigayo chopangira nsalu, utsi wosalamulirika unafalikira mamita 47 mopingasa usanatsike kufika pa 12 µg/m³ PM2.5—koma masensa omwe anaikidwa patali ndi mamita 38 ananena kuti pali spike pamwamba pa 89 µg/m³ kwa mphindi 11. Wolakwa? Mphepo yamkuntho ya 1.8 m/s yolumikizana ndi zokwezera kutentha kuchokera ku mapaipi anyansi otentha. Popanda kuyeza kapena kuletsa envelopu yofalikira, palibe gulu la sensa lomwe limapereka deta yodalirika.

Tsopano timapanga mapu amitundu yosiyanasiyana pogwiritsa ntchito zolowera zenizeni zenizeni: vekitala yamphepo (yoyezedwa ndi ma ultrasonic anemometers pa 2 Hz), liwiro lotuluka (kudzera machubu a pitot ofikira ± 1.2% sikelo yonse), ndi delta ya kutentha kwa plume (IR thermography yolumikizidwa ndi feed station station). Izi sizongoyerekeza - ndi zomwe timatumiza. Kukonzekera kwathu kwamakono kumagwiritsa ntchito kulankhulana kwa Modbus RTU pakati pa malo a nyengo ya Vaisala WXT530, Siemens S7-1200 PLCs, ndi zolemba za Python zomwe zimasintha kufalikira kwa masekondi 9 aliwonse. Zotulutsa zimayendetsa kuchepetsa thupi - osati zosefera zamapulogalamu.

Njira Zitatu Zowongolera Zovomerezeka M'munda (ndi Chifukwa Chake Awiri Amalephereka Ponyamula)

Ena amati kuwongolera kufalikira sikofunikira ngati "mungowonjezera masensa ambiri." Ife tinaziyesa izo. Mu 2023 woyendetsa pamasamba asanu ndi limodzi, ma grid sensors wandiweyani adachepetsa zabwino zabodza ndi 22% - koma adakweza mtengo wokonza 3.7 ×. Nazi zomwe zimagwira ntchito:

• Zotchinga zamakina zopatuka: 3-mm zitsulo zosapanga dzimbiri zopindika pa 63 ° kupita ku mphepo yomwe ikubwera. Anayika 1.2 mita kumtunda kwa magulu a sensa. Dulani kulowerera kwa utsi woyezeka ndi 84% mu 18 mwa 21 nyengo yamphepo. Zimagwira bwino ntchito ngati mulu wautali ≤ 8 mita.
• Kutentha kwamalo komweko: Low-noise axial fans (mtundu wa ECM, 42 dB(A) pa 1 m) okwera 0.8 m pansi pa masensa, akutopetsa 0.45 m³ / s ya mpweya wozungulira pamwamba pa 1.1 m / s. Amapanga chowonjezera chokhazikika chomwe chimakweza utsi womwe ukubwera pamwamba pa ndege yozindikira. Amatsimikiziridwa kuti akugwira ntchito mpaka 2.3 m/s crosswind.
• Makatani amtambo wamadzi: Osapanga chifunga—ma nozzles olondola (Spraying Systems TJ series, 0.15 mm orifice) yopereka 0.8 L/min pa mita imodzi ya utali wa nsalu. Madontho a Mist amatenga> 68% ya tinthu tating'onoting'ono ta 5 µm mkati mwa masekondi 0.9. Pamafunika madzi kuuma <80 ppm ndi inline kusefera. Zalephera kawiri chifukwa cha makulitsidwe a kashiamu-chifukwa chake tsopano tafotokoza milomo yokutidwa ndi ceramic.

Zomwe sizigwira ntchito? Zowonera za mauna (zotsekedwa mu maola 72) ndi zoletsa mankhwala (PH yosakhazikika imasuntha sensa yoyendetsa ndi ± 4.3% pa ​​sabata). Tinaphunzira kuti m'mafakitale awiri oyeretsera madzi oipa mmene utsi wodzaza ndi ammonia unkachita ndi ma mesh okhala ndi zinc, kupanga mchere wochititsa chidwi womwe umafupikitsa ma sensor.

Kuphatikiza Ndiko Komwe Ntchito Zambiri Zimapunthwa

Kuwongolera kwapang'onopang'ono sikulephera chifukwa chakuti zidazo ndizolakwika - koma chifukwa zimalumikizidwa pamaneti owunikira zakale. Tikuwona mipata itatu yophatikizana mobwerezabwereza:

• Kusalinganiza nthawi: Malo otengera nyengo amayesa masekondi 60 aliwonse pomwe malingaliro ophatikizika amafunikira zosinthidwa masekondi 8-12 aliwonse. Konzani: Onjezani komputa yam'mphepete (Raspberry Pi CM4 yokhala ndi kernel yeniyeni) kuti musungidwe ndikuyesanso.
• Mikangano yamphamvu: Mabasi 24 a VDC amagawana malo okhala ndi ma 220 VAC fan circuits. Zimayambitsa 17-23 mV phokoso pa mizere ya analogi 4-20 mA. Konzani: Opto-okhalokha ma siginoloji conditioners (Dataforth SCM5B35-03) pamaso ADC kulowetsa.
• Kuyika zolakwika za geometry: Zopinga zomwe zimayikidwa moyenderana ndi komwe mphepo ikupita m'malo mwa perpendicular to plume centerline. Zotsatira: 55% kuchepetsa kuchita bwino. Konzani: Gwiritsani ntchito mamita atali a laser pakukhazikitsa kuti mutsimikizire kulumikizana kwa chotchinga ndi stack mkati mwa ± 2.5 °.

Tsopano tikuphatikiza mndandanda wa kafukufuku wa malo 15 tisanatumizidwe - kuphimba matenthedwe, malo owoneka bwino apafupi, komanso kuchulukana kwa zomera munyengo (zitsamba zowundana zimasintha mawonekedwe amphepo mpaka 30%). Zimatenga maola 3.5 pamalopo. Makasitomala amachitcha mochulukira. Kenako amawona lipoti lawo lokhazikika la data la mwezi woyamba.

Kuwongolera Kusiyanasiyana kwa Utsi Ndi Chilango Chogwira Ntchito-Osati Zida Zokha

Izi sizokhudza kugula bokosi lolembedwa kuti "utsi woletsa kufalikira kwa utsi." Ndi za kudzipereka ku kuyeza kosalekeza kwa zomwe zikuyenda-ndi chifukwa chake. Dongosolo lililonse lomwe timapanga limaphatikizapo zowonera pa SCADA HMI, zosinthidwa masekondi 10 aliwonse. Othandizira amawona osati mayendedwe okhazikika komanso ma envulopu omwe ali nawo. Mphepo ikasuntha, radius imajambulanso. Pamene kutentha kwa stack kutsika, ntchentche imagwera mkati. Kuwoneka kumeneko kumasintha zosankha.

Pamalo opangira mabatire ku Dalian, ogwira ntchito adagwiritsa ntchito chiwonetserochi kuti achedwetse kuyeretsa ng'anjo mpaka mphepo itasuntha kummawa-kudula ma alarm a CO zabodza ndi 91% mu Q1 2024. Muzochitika zina, sukulu ya yunivesite inasintha machitidwe opopera kasupe pogwiritsa ntchito mapu a nthawi yeniyeni, pogwiritsa ntchito mizati ya madzi monga zotchinga zosunthika. Palibe zida zatsopano-zangogwiritsidwanso ntchito motsogozedwa ndi luntha logawa.

Kuwongolera kufalikira kwa utsi kumayamba ndikuvomereza kuti chilengedwe sichiri chokhazikika. Imapuma, imasinthasintha, imatentha, imazizira. Kuwunika kolondola kumayambira pomwe kufalikira kumathera-ndipo kumathera pomwe kuwongolera kumayambira. Kwa magulu omwe ali ndi chidwi chofuna kuchitapo kanthu, malirewo sasintha kuti anyalanyaze. Ndilo gawo loyamba kuyeza, kutsanzira, ndikuwongolera.