Isimiso esiyisisekelo se-multihead weigher kanye nobuchwepheshe bayo bokuqinisekisa i-rotary metrological

Umbhali: Smartweigh– Isisindo Sezinhloko Eziningi

Ukuthuthukiswa kobuchwepheshe kokuqinisekiswa kwe-rotary metrological kanye nesimiso sayo esiyisisekelo sokulinganisa okungenasisindo 1. Isimo samanje sendlela yokuqinisekisa ukulinganisa ye-rotary mixer 1.1 Indlela yokuqinisekisa ukulinganisa okujikelezayo yesicelo sendabuko inezindlela eziningi zokuqinisekisa ukulinganisa izinto zokusetshenziswa ze-fiber ezifana nezinto zokwakha zokuhlobisa, okusanhlamvu, uwoyela, ukudla, ukumbiwa kwezimayini, njll., noma lapho kuphathwa izinongo ku-inthanethi. Ezivamile kakhulu yilezi: izikali zebhande le-elekthronikhi, ama-flowmeter epuleti lokuhlanza, izikali zenuzi, kanye nezikali zokudla kwediski. Le ndlela yokuqinisekisa ukulinganisa inezici zayo, kodwa imikhawulo mikhulu kakhulu.

Ubuchwepheshe bokucubungula besikali sebhande le-elekthronikhi buqaliswa ngokuningiliziwe. Izinyathelo: Isikali sebhande le-elekthronikhi sihlanganisa isignali yedatha yomthwalo etholakala endaweni iyonke (isigaba sokulinganisa) sebhizinisi kanye nesignali yedatha yesilinganiso sokushintsha (isilinganiso sejubane lebhande lokudlulisa) ukuthola inani lokugeleza eliphelele. Ama-Targets asebenzisekayo. Qaphela: Inani lezinto ezizokhishwa liyashintshwa ngokwesilinganiso sejubane sebhande lokudonsa nokudonsa. Ngemva kokuba izinto eziluhlaza sezibunjwe futhi zihlotshiswe ngembobo yokudla ye-chute yokudla, ukujiya kwazo kuzinzile futhi kuyalingana. Kungakhathaliseki ukuthi isilinganiso sejubane sebhande lokuhambisa, umthwalo osebhandeni lokushayela uhlala unjalo. Uma kuqhathaniswa nezinye izindlela zokudla, le ndlela inomphumela omuhle wangempela wokuqinisekiswa kwe-metrological kanye nokuhleleka.

1.2 Ukusetshenziswa kwendlela yokuqinisekisa i-rotary metering emishinini yokuxuba eqhubekayo Imishini yokuxuba ejikelezayo yamanje ifaka: imishini nemishini yokuxuba inhlabathi esime kahle, imishini yokuxuba i-concrete rotary, kanye nemishini yokuxuba i-bitumen rotary. Ngokuphathelene nokunemba kokuqinisekiswa kwe-metrological, kulesi sigaba, lolu hlobo lwemishini alukwazi ukuhlanganiswa ngezikhathi ezithile. Ngakho-ke, indlela yokuxuba ejikelezayo ayithandwa ngabathengi abaningi, okungenye yezinto ezibangela lokhu.

Ubufakazi besayensi bungabonisa ukuthi ubuchwepheshe bokuxuba nokucubungula obunqunywe yilezi zindlela ezimbili zokuqinisekisa ukulinganisa konke kuyizindawo ezifanele, futhi ukusetshenziswa kokuxuba okujikelezayo akufanele kube sengozini ngenxa yemikhawulo yobuchwepheshe bamanje. Kulesi sigaba, ezweni lethu, imishini yokuxuba ejikelezayo yonke ilinganiswa ngendlela yevolumu noma isikali sebhande le-elekthronikhi/isikali esijikelezayo. Ngawo-1970, ubuchwepheshe bokucubungula ukuxuba okuqhubekayo bethulwa buvela eYurophu ukuthuthukisa nokuklama. Kuze kube manje, bekulokhu kunjalo, futhi akukho ntuthuko kusukela ekuqaleni kuze kube sekupheleni. Eqinisweni, lezi zindlela ezimbili zokuqinisekisa ukulinganisa zingasetshenziswa eYurophu ngokunemba okuphezulu. Isibonelo, isikali sokuhlanganisa ibhande lokudlulisa se-Zhongshan Smart weigh sinokunemba okunamandla kokufaka izinongo okungu-2%.

Kodwa ezweni lakithi, akukuhle, ngoba kuncike ekuvinjelweni kokukhiqizwa kwezimboni okuyisisekelo njengokukhiqiza imishini nemishini kanye nezinto zokwakha ezweni lakithi. Kulesi sigaba, ukunemba kokuqinisekiswa kokulinganisa kwezikali zebhande likagesi ezisetshenziswa ensimini yomgwaqo eShayina ngokuvamile kungama-5% kuphela, okungafani nokuqinisekiswa kokulinganisa umthamo, futhi ukuthembeka kwesikhathi eside kubuthakathaka. 2. Ukuguqulwa Kokukala Okuqhubekayo——Isisindo samakhanda amaningi (i-English Loss-in-weight) sesikali sokunciphisa umuthi wesignali ehlukile (isimo esingenasisindo) saqala ukusetshenziswa kuyo yonke inqubo yokukhiqizwa kwezimboni ngawo-1990 ukuze kuqinisekiswe okuqhubekayo kwe-metrological.

Isisindo se-Multihead kancane kancane sithatha indawo yezikali zebhande le-elekthronikhi, izikali ezijikelezayo, ngisho nezikali eziqongelelekayo. Njengendlela entsha yokulinganisa, izinto zokusetshenziswa eziningi ziyasetshenziswa kancane kancane. 2.1 Umqondo oyisisekelo: Thatha ibhakede lokukala kanye nenhlangano yokudla njengomzimba wonke wesikali, sampula njalo isignali yedatha yesisindo se-net yomzimba wesikali ngokuya ngephaneli yethuluzi noma isofthiwe yekhompyutha ephezulu, bese ulinganisa isilinganiso sokushintsha kwesisindo se-net ngesikhathi seyunithi njengesivinini esisheshayo. Ukugeleza okuphelele, bese kuba ngezixazululo zobuchwepheshe zokuhlunga ihadiwe nesofthiwe, kungasetshenziswa njengengxenye yesibili "yokugeleza okuphelele". Ukutholwa kwalokhu kugeleza kwedatha kubaluleke kakhulu, futhi kuyisisekelo sokulinganisa okunembile nokuqinisekiswa kwesikali esingenasisindo.

Indlela yendabuko ichazwe ngokuningiliziwe esithombeni: indlela yokuqinisekisa isikali se-multihead, bese i-FC ibuyisela emuva i-algorithm yokwenza ngcono ngokuya ngombono we-PID, yenza ukubalwa kokusebenza kokugeleza okuphelele eduze kwethagethi iyonke, bese ikhipha isignali yedatha yokulungisa ukuze isebenze i-starter ethambile kanye nezinye iziphakeli ezidlidlizayo. 2.2 Ukusetshenziswa kwangempela kwesikali sokulinganisa isignali ehlukile (isikali se-multihead): Kusukela esimisweni sokusebenza, kungabonakala ukuthi ngeke kuthinteke izinguquko zemishini yemishini yomzimba wesikali kanye nesakhiwo sokudla. Ilinganisa kuphela iphutha lesisindo esiphelele (isisindo somehluko), esihlukile kwesendabuko Uma kuqhathaniswa nezindlela zokuqinisekisa ze-metrological ezinamandla, izici zayo zisobala. Lapho ithagethi yokulawula ingukugeleza okuphelele (t/h, kg/min), futhi izinto zokusetshenziswa zinokuthuthwa okuhle, futhi izinga lokunemba lokuqinisekisa kwe-metrological liphezulu, ukuqinisekiswa kwe-metrological kwendlela yesimo esingenasisindo kungasetshenziswa njengohlelo oluhle kakhulu.

2.2.2 Inqubo yokukhiqiza isisindo esingenasisindo: inqubo yokukhiqiza isisindo esinamakhanda amaningi 2.2.3 Izinto ezidinga ukunakwa ohlelweni lokuklama isisindo esingenasisindo, izici ezithinta ukunemba: isisindo esinamakhanda amaningi sinezici zesikali sedatha esingaguquki kanye nesikali esiguquguqukayo. Lapho kwakhiwa isofthiwe yesistimu, kushiwo ukuthi: 1. Ububanzi bezinga lokuthutha obufanele, ngokuvamile endaweni ethile yokusebenza, u-60% kuya ku-70% womthamo wokuthutha olinganisiwe yiwona ongcono kakhulu. Uma kusetshenziswa ushintsho lwesivinini sokuxhumana nokushintshana, kungcono ukuphendula kumvamisa wokucindezeleka ongu-35-40Hz. Lokhu kuqinisekisa ukulungiswa okubanzi.

Futhi kungenxa yokuthi lapho izinga lokuthuthwa liphansi kakhulu, ukuzinza kwesofthiwe yesistimu kuba kubi. 2. Ububanzi bokulinganisa benzwa buphakathi nendawo. Ngamanye amazwi, inzwa isebenzisa futhi u-60% ~ 70% wobubanzi bayo bokulinganisa ngokwefomula. Isignali yedatha inobubanzi bokuguqulwa, okuzuzisa kakhulu ukuthuthukisa ukunemba. 3. Uhlelo lokuklama uhlelo lwemishini kufanele luqinisekise ukuthi izinto zokusetshenziswa zijikeleza kahle, futhi luqinisekise ukuthi isikhathi sangaphambi kokusabalalisa sifushane, nokuthi ukudla akufanele kube njalo kakhulu. Ngokuvamile, kuthatha imizuzu emi-5-10 ukugcwalisa kabusha izinto.

Idivayisi yokudlulisa yezikhungo ezisekelayo kufanele iqinisekise ukusebenza okuzinzile kanye nesimo esihle somugqa. 2.2.4 Ithuba lokusebenzisa: Ngokuthuthuka okusheshayo kohlelo lokulawula idivayisi kagesi, isisindo samakhanda amaningi sisekelwe ekukhetheni ubuchwepheshe obusha, futhi ukunemba kokuqinisekiswa kwe-metrological kukhushulwe kusuka ku-0.3% kuya ku-0.5%. Futhi ukwanda kuya ku-0.1% ~ 0.2%, noma ngisho nangale kwesilinganiso sedatha esimile, isihluthulelo sale nqubo entsha ukusetshenziswa kwezinzwa zesisindo sokubonisa sedijithali.

2.2.4.1 Ukusetshenziswa kwenzwa yokulinganisa isibonisi sedijithali: Ukuze kuhlanganiswe kangcono nesidingo sokulinganisa okuguquguqukayo nokunembile, kubaluleke kakhulu ukusetshenziswa njengenzwa yokhiye wesofthiwe yesistimu emishinini yokulinganisa. Ikakhulukazi ezindaweni okumele zibe nobuhlakani, idatha ngesikhathi esisodwa noma engaqondile yenzwa ibalulekile. Ngalesi sikhathi, ukungaqiniseki kokulinganisa okunembile kanye nezinga lokutholakala ngokuvamile kuyizinto ezimbili ezihlukile, futhi kunzima ukulinganisela lokhu okubili, futhi kuyadingeka ukunquma isimo esithile. Yenza isivumelwano. Embonini yokulinganisa, izinzwa eziningi zendabuko zedijithali ze-analog zikhiqizwa futhi zisetshenziswa ezweni lakithi, futhi umphumela wesignali ye-pulse mncane.

Uma sithatha inzwa yesisindo enokukhipha okuphelele kanye nesimiso esiyisisekelo samandla okucindezela i-resistor njengesibonelo, ukuphuma okukhulu okuvamile kungu-30-40mV. Ngakho-ke, isignali yedatha ithintwa kalula yimvamisa yomsakazo, futhi ibanga lokudlulisa lekhebula nalo lifushane, ngokuvamile lingaphakathi kwamamitha ayishumi. Emishinini yokukala isitsha (isikali sokulinganisa isikali se-silo), imishini yokukala yesikhulumi sesevisi noma ibhuloho lesikali (isikali seloli kagesi noma isikali sesitimela) kusetshenziswa izinzwa eziningana zokushisa ezilandelanayo, uhlelo lokusebenza lwedatha lungasetshenziswa ukuqedela "ukuzilinganisa".

Lokhu kungenxa yesofthiwe yesistimu yezinzwa zedijithali eneziteshi eziningi, ayikho inkinga yokumelana okulinganayo. Ikhasimende lingafaka ikheli eliningiliziwe, isisindo kanye nokuzwela kwesilawuli ngasinye, bese likwazi ukwenza ukulungiswa kwesikali lilodwa. “Amakhona amane” noma “umphetho” Kulinganisiwe, asikho isidingo sokulungisa njalo uhlamvu ngokuphindaphindiwe. Ekulingiseni kwesistimu, ngemva kokuba izinzwa eziningana zixhunywe ndawonye, ​​izici zesilawuli ngasinye ngeke zihlukaniswe kwezinye. Lapho kulinganiswa, isisindo esijwayelekile kufanele sikhululwe ku-sensor ngayinye bese kusetshenziswa i-voltage ephezulu kuma-terminal. Isilawuli sokucindezela siyalungiswa.

Ngenxa yokuthi kukhona ukuhlolwa kwe-t okubhangqiwe lapho kulungiswa, kuphinda kaningana. Kuhlelo lwedatha, inzwa ngayinye ivunyelwe ukuhlolwa ngayinye njengenye. Ngakho-ke, isikhathi sokulungisa izindleko eziphelele zesofthiwe ngesistimu yenzwa yedijithali siyingxenye eyodwa kuphela yesilingo sesistimu.

Ukusebenzisa isofthiwe yesistimu yedatha kungenziwa futhi “ukuzixilonga”, okungukuthi, ukugeleza kohlelo lokuxilonga kuhlola njalo ukuthi isignali yedatha yenzwa ngayinye iphelile, ukuthi umkhiqizo udlule kakhulu, njll. Uma kunenkinga, umlayezo noma i-alamu iboniswa ngokuzenzakalelayo kudeshibhodi noma iphaneli yokulawula iphaneli, futhi amakhasimende angasebenzisa okhiye kuphaneli yokulawula ukuthola inzwa ngayinye, ukuhlonza imbangela yenkinga ngamunye futhi enze ukuxazulula izinkinga okuvamile. Lolu hlobo lokuxilonga ngokwahlulela kanye nekhono lokususa izinkinga ngokusobala luyinzuzo ebalulekile kumakhasimende, kodwa kunzima ukukhohlwa futhi ukukwenza ngezindleko eziphansi ekulingiseni isofthiwe yesistimu yenzwa ye-analog.

Embonini yokulinganisa, isinqumo se-displacement coefficient SPWM yesofthiwe evamile yesistimu yenzwa yokulingisa singama-bits angu-16, futhi kukhona izibalo ezingu-50,000 ezitholakalayo; kanti isinqumo sesikrini senzwa ngayinye ohlelweni lwedatha singama-bits angu-20. , kunezibalo ezingu-1,000,000 ezitholakalayo. Ngakho-ke, isofthiwe yesistimu enezinzwa zedijithali ezine ingakhiqiza isinqumo sesikrini esingama-4,000,000. Izinzuzo zama-pixel aphezulu kangaka zifaneleka kakhulu ezindaweni lapho uhlaka lwesisindo lusinda kakhulu futhi isisindo sento esikalayo sincane.

Isibonelo: emishinini yokulinganisa izinongo, ngezinye izikhathi uhlobo oluthile lwezinto zokusetshenziswa lubalelwa engxenyeni encane kuphela eresiphi eyimfihlo, kodwa izidingo zokunemba zisephezulu kakhulu. Lokhu akunakwenzeka futhi ekulingiseni kwesistimu yendabuko. 3. Ukusetshenziswa kwemishini yokuxuba ejikelezayo kanye nomthelela wamathemba emakethe Ngenxa yokuthi ukulinganisa nokuqinisekisa imishini yokuxuba ejikelezayo yaseShayina kuhlala endleleni yendabuko, amathuba okusebenzisa isisindo esingenasisindo ekukhangiseni nasekukhuthazeni azoba makhulu kakhulu. , Inqubo yokuxuba eqhubekayo ye-bitumen inezinguquko eziphazamisayo, futhi ukulawulwa okunembile kokugeleza kwedatha kungakhiqiza izinto zokuxuba ezijwayelekile nezifanele kakhulu.

Ngenxa yokuthi inqubo yokuxuba ngokujikeleza ilula ngesakhiwo futhi iphansi ezindleleni zokulungisa, uma isilinganiso sokuxuba umkhiqizo sesilawulwa ngokuqinile, sizoshintsha isimo samanje sesabelo semakethe esiphansi sokuxuba ngokujikeleza. Ikakhulukazi, imishini nemishini ekhulayo yokukhiqiza edingekayo emikhakheni yobunjiniyela bemigwaqo kanye namandla kagesi anenani elihle, futhi isisindo esingenasisindo siyindlela ebalulekile yokuthuthukisa ukunemba kokulinganisa.

Umbhali: Smartweigh– Abakhiqizi Besisindo Esinezinhloko Eziningi

Umbhali: Smartweigh– Isisindo Esiqondile

Umbhali: Smartweigh– Umshini Wokupakisha We-Linear Weigher

Umbhali: Smartweigh– Umshini Wokupakisha Wesisindo Esiningi

Umbhali: Smartweigh– I-Denester yethreyi

Umbhali: Smartweigh– Umshini Wokupakisha we-Clamshell

Umbhali: Smartweigh– Isisindo Esihlanganisiwe

Umbhali: Smartweigh– Umshini Wokupakisha we-Doypack

Umbhali: Smartweigh– Umshini Wokupakisha Isikhwama Esenziwe Ngaphambili

Umbhali: Smartweigh– Umshini Wokupakisha Ojikelezayo

Umbhali: Smartweigh– Umshini Wokupakisha Oqondile

Umbhali: Smartweigh– Umshini Wokupakisha we-VFFS