Sarrafa Rawan Hayaki don Madaidaicin Kula da Muhalli 

Abubuwan sarrafa kewayon hayaki yana da mahimmanci lokacin sa ido kan muhalli yana buƙatar daidaito-ba zato ba. Mun shigar a kan 120 fountain da ruwa-art tsarin a masana'antu wuraren shakatawa, smart campuses, da eco-zones tun 2006. A cikin uku ayyuka a bara-biyu a Shenyang ta Heping District da kuma daya a sinadari logistics cibiya-mun fuskanci m kalubale: hayaki plumes daga kusa tukunyar jirgi stacks blurred firikwensin karatu, ingancin tushe ƙararrawa. Shi ke nan lokacin da muka daina ɗaukar hayaki a matsayin hayaniyar baya-kuma muka fara sarrafa kewayon yaɗuwar sa.

Me yasa Kewayon Yadawa Ya Kasance Mai Sauyawa Na Gaskiya a Kula da Muhalli

Yawancin ƙungiyoyi suna mai da hankali kan ji na firikwensin ko mitar daidaitawa. Amma bayanan filin mu ya nuna kewayon yaɗuwar ya mamaye amincin auna. Hayaki ba ya yin kama da iskar gas mai tsabta. Ƙaƙƙarfan ɓangarorin sa, bambancin zafin jiki, da juzu'in iska suna tantance nisan tafiyarsa kafin a dilution ƙasa da iyakokin ganowa. A cikin gwaji ɗaya kusa da masana'anta, hayakin da ba a sarrafa shi ya bazu mita 47 a kwance kafin ya faɗi zuwa 12 µg/m³ PM2.5—duk da haka na'urori masu auna firikwensin sun sanya mitoci 38 nesa ba kusa ba sun ba da rahoton spikes sama da 89 µg/m³ na mintuna 11. Mai laifi? Gilashin iska mai tsayin 1.8m/s yana mu'amala tare da sabbin abubuwan zafi daga bututun mai zafi. Ba tare da aunawa ko ƙuntata waccan ambulaf ɗin yaduwa ba, babu tsararren firikwensin da ke isar da amintattun bayanai.

Yanzu muna taswirar kewayon watsawa ta amfani da abubuwan shigarwa guda uku na ainihi: vector na gida (wanda aka auna ta ultrasonic anemometers a 2 Hz), saurin fita tari (ta hanyar bututun pitot wanda aka daidaita zuwa ± 1.2% cikakken sikelin), da ƙarancin zafin jiki na delta (IR thermography daidaitawa zuwa ciyarwar tashar yanayi). Wannan ba ƙirar ƙira ba ce - abin da muke turawa ne. Saitin mu na yanzu yana amfani da sadarwar Modbus RTU tsakanin tashoshin yanayi na Vaisala WXT530, Siemens S7-1200 PLCs, da rubutun Python na al'ada waɗanda ke sabunta radius na watsawa kowane sakan 9. Fitowar tana tafiyar da ragewa ta jiki-ba matattarar software ba.

Hanyoyin Sarrafa Ingantattun Filin guda uku (kuma Me yasa Biyu suka gaza ƙarƙashin Load)

Wasu suna jayayya cewa sarrafa yaduwar ba lallai ba ne idan kun “ƙara ƙarin firikwensin kawai.” Mun gwada hakan. A cikin matukin jirgi na 2023 a fadin shafuka shida, grid firikwensin firikwensin ya rage ingancin karya da kashi 22% kawai - amma ya haɓaka farashin kulawa 3.7 ×. Ga abin da a zahiri ke aiki:

• Shingayen karkatar da injina: 3-mm bakin karfe baffles angled a 63 ° zuwa rinjaye iskõki. An shigar da mita 1.2 a sama na gungu na firikwensin. Yanke kutsen hayaki mai aunawa da kashi 84 cikin 18 cikin 21 na yanayin iska. Yana aiki mafi kyau lokacin tara tsayi ≤ 8 mita.
• Ƙunƙarar zafin zafi na gida: Magoya bayan axial mara ƙarfi (nau'in ECM, 42 dB (A) a 1 m) sun ɗora 0.8 m ƙasa da na'urori masu auna firikwensin, suna gajiyar 0.45 m³/s na iskar yanayi sama a 1.1 m/s. Yana ƙirƙira tsayayyen ƙaramin haɓakawa wanda ke ɗaga hayaki mai shigowa sama da jirgin sama mai ji. Tabbatar da inganci har zuwa 2.3m/s crosswinds.
• Ruwa hazo labule: Ba tsarin hazo ba - madaidaicin nozzles (Spraying Systems TJ series, 0.15 mm orifice) yana ba da 0.8 L / min a kowace mita na tsawon labule. Hazo yana kama> 68% na barbashi sub-5 µm a cikin daƙiƙa 0.9. Yana buƙatar taurin ruwa <80 ppm da tacewa cikin layi. Ba a yi nasara sau biyu ba saboda sikelin calcium - don haka yanzu mun ƙayyade nozzles mai rufin yumbu.

Me ba ya aiki? Fuskokin raga masu wucewa (wanda aka toshe cikin sa'o'i 72) da masu hana ruwa gudu (pH mara ƙarfi ya motsa firikwensin firikwensin ta ± 4.3% kowane mako). Mun koyi cewa hanya mai wuya—a cikin masana'antar sarrafa ruwa guda biyu inda hayaƙin ammonia ya yi maganin ragamar da aka lulluɓe da tutiya, suna samar da gishiri mai ɗorewa wanda ya gajarta filaye.

Haɗin kai Shine Inda Yawancin Ayyuka Suka Tuntuɓe

Ikon watsawa ya gaza ba saboda kayan aikin ba su da lahani-amma saboda an kulle shi a kan cibiyoyin sa ido na gado. Muna ganin gibin haɗin kai guda uku masu maimaitawa:

• Daidaiton lokaci: Tashoshin yanayi suna yin samfurin kowane sakan 60 yayin da dabaru na yadawa suna buƙatar sabuntawa kowane sakan 8-12. Gyara: Ƙara Layer na lissafin gefen (Rasberi Pi CM4 tare da kernel na ainihi) don adanawa da sake yin samfuri.
• Rikicin yanki na iko: 24 VDC firikwensin bas raba ƙasa tare da 220 VAC fan da'irori. Yana haifar da 17-23 mV amo kara a kan analog 4-20 mA Lines. Gyara: Opto-keɓaɓɓen kwandishan sigina (Dataforth SCM5B35-03) kafin shigar da ADC.
• Kurakurai na hauhawa: Baffles sanya layi daya zuwa hanyar iska maimakon perpendicular zuwa plume centerline. Sakamakon: 55% rage tasiri. Gyara: Yi amfani da mitoci masu nisa lokacin shigarwa don tabbatar da daidaitawar shinge-zuwa-tari tsakanin ± 2.5°.

Yanzu mun haɗa da jerin binciken bincike mai maki 15 kafin duk wani turawa-wanda ke rufe ma'aunin zafi da sanyio, saman da ke kusa da su, har ma da yawan ciyayi na yanayi (yawan ciyayi suna canza bayanan bayanan iska har zuwa 30%). Yana ɗaukar awanni 3.5 akan wurin. Abokan ciniki suna kiran shi wuce gona da iri. Sannan suna ganin rahoton kwanciyar hankali na watansu na farko.

Sarrafa Rawan Hayaki Shine Ladabin Aiki-Ba Hardware Kawai ba

Wannan ba game da siyan akwatin da aka yi wa lakabi da "Karfin yaduwar hayaki ba." Yana da game da ƙaddamar da ci gaba da auna abin da ke motsawa-kuma me yasa. Kowane tsarin da muke ginawa ya haɗa da hangen nesa na radius na watsawa kai tsaye akan SCADA HMI, ana sabuntawa kowane sakan 10. Masu aiki suna ganin ba kimar maida hankali kawai ba amma ambulan jiki wanda ke ɗauke da su. Lokacin da iska ke motsawa, radius ya sake ja. Lokacin da yanayin zafi ya faɗi, tulun yana faɗuwa a ciki. Wannan hangen nesa yana canza yanke shawara.

A wata masana'antar samar da baturi a Dalian, masu aiki sun yi amfani da wannan nuni don jinkirta tsabtace tanderu har sai iska ta koma gabas-yanke ƙararrawar CO na ƙarya ta 91% a cikin Q1 2024. A wani yanayin kuma, harabar jami'a ta daidaita tsarin feshin maɓuɓɓugar ruwa dangane da taswirorin watsawa na lokaci-lokaci, ta yin amfani da ginshiƙan ruwa azaman shinge mai tsauri. Babu sabon kayan masarufi-kawai an sake dawo da kadarorin da aka yi amfani da su ta hanyar bayanan watsawa.

Sarrafa kewayon hayaki yana farawa tare da yarda cewa muhallin baya tsaye. Yana numfashi, motsi, zafi, sanyi. Daidaitaccen saka idanu yana farawa inda yaduwa ya ƙare - kuma yana ƙare inda aka fara sarrafawa. Ga ƙungiyoyi masu mahimmanci game da bayanan da za a iya aiwatarwa, iyakar ba mai canzawa ba ce da za a yi watsi da ita. Shine siga na farko don aunawa, ƙira, da sarrafawa.