I-valve yokulawula imoto iyithuluzi elisebenzisa injini kagesi ukuze isebenze. Ihlinzeka ngokulawulwa okuzenzakalelayo noma okude kokugeleza koketshezi. Le valve ibalulekile ekugcineni ukulawula okunembile ezinhlelweni ezahlukene. Abaqhubi bayisebenzisela ukuphatha uketshezi namagesi ngempumelelo, okuthuthukisa ukusebenza kahle.
Izinto Ezibalulekile Okufanele Uzicabangele
- Amavalvu okulawula izimoto asebenzisa injini kagesi ukuphatha ngokuzenzakalelayo indlela uketshezi namagesi ageleza ngayo. Lokhu kusiza izinhlelo ukuthi zisebenze kangcono futhi ziphephe kakhudlwana.
- Lawa ma-valve anikeza ukulawula okuqondile kokugeleza koketshezi. Abalulekile ezimbonini nasezakhiweni ukuze kugcinwe izinto ezifana nokushisa kanye nengcindezi zilungile.
- Amavalvu okulawula injini anezingxenye ezifana ne-actuator kanye nezinzwa. Lezi zingxenye zisebenza ndawonye ukuhambisa ivalvu ngokunembile nokunikeza impendulo endaweni yayo.
Iyini i-Motor Control Valve?
Ukuchaza Amavalvu Okulawula Imoto
I-valve yokulawula imoto imelela idivayisi eyinkimbinkimbi yokulawula ukugeleza koketshezi. Ngokuyinhloko isebenzisa imoto kagesi ukuze isebenze. Le moto inikeza amandla okuvula noma ukuvala indlela yangaphakathi ye-valve. Le ndlela yokusebenza iyihlukanisa kakhulu kuma-valve adinga ukungenelela ngesandla. Izingxenye zokulawula uketshezi ngaphakathi kwe-valve yokulawula imoto zivame ukufana nalezo ezitholakala kuma-valve asetshenziswa ngesandla. Kodwa-ke, imoto inezela ungqimba lokuzenzakalela kanye nokunemba.
Injini kagesi ishayela umshini othuthukisiwe ngesitimela segiya. Lesi sitimela segiya sihumusha ukujikeleza kwenjini kube ukunyakaza okudingekayo kwe-valve. Indlela ethile yokuthuthukisa iyahlukahluka kuye ngohlobo lwe-valve. Kuma-valve okuhamba aqonde phezulu, njenge-gate, sluice, noma ama-globe valve, umshini wesikulufu se-lead uvame ukuphakamisa noma ukulahla ipuleti lesango noma ubeke ipulaki elicijile. Ngokuphambene nalokho, ama-valve ajikelezayo noma ajika ngekota, kufaka phakathi ama-valve ebhola ne-butterfly, avame ukusebenzisa umshini wokuthuthukisa we-cam noma we-spindle central. Lo mklamo uvumela ukusebenza okusheshayo. Ukuze kuvinjelwe ukuthuthuka ngokweqile kanye nomonakalo ongaba khona, ama-valve okulawula imoto afaka imikhawulo kagesi. Le mikhawulo inquma ukunikezwa kwamandla kwemoto lapho i-valve ifika endaweni yayo evulekile noma evaliwe ngokuphelele. Isiqondiso semoto sibe sesibuyela emuva ukuze kulungiswe okulandelayo, kuqinisekiswe ukulawula okunembile kanye nokuphila isikhathi eside.
Kungani Kufanele Usebenzise I-Motor Control Valve?
Izinhlangano zikhetha ivalvu yokulawula imoto ngezizathu eziningana eziphoqayo, ikakhulukazi ezigxile ezenzakalelayo, ukunemba, kanye nokusebenza kude. Lawa mavalvu anikeza ukulawula okuphezulu kokugeleza koketshezi uma kuqhathaniswa nezinye izindlela ezenziwa ngesandla. Avumela indawo eqondile, okubaluleke kakhulu ezinqubweni ezidinga amazinga athile okugeleza noma ukucindezela. Lokhu kunemba kunciphisa imfucuza futhi kuthuthukisa ukusebenza kohlelo.
Ukuzenzakalela kungenye inzuzo ebalulekile. Abaqhubi bangahlela la ma-valve ukuze baphendule kokufakwayo kwezinzwa noma imicimbi ehleliwe, kunciphisa isidingo sokuqapha okuqhubekayo kwabantu. Leli khono lithuthukisa ukusebenza kahle futhi likhulula abasebenzi kweminye imisebenzi. Ukulawula kude nakho kunikeza izinzuzo ezibalulekile. Onjiniyela bangalungisa izikhundla zama-valve egumbini lokulawula eliphakathi, ngisho nakude kakhulu. Lesi sici sithuthukisa ukuphepha ngokugcina abasebenzi kude nezindawo eziyingozi. Ngaphezu kwalokho, ukusebenza okuqhubekayo nokuphindaphindekayo kwe-valve yokulawula imoto kunikela ekuthembekeni okukhulu kohlelo kanye nokuzinza. Kuqinisekisa ukuthi izinqubo zihamba kahle futhi ngendlela ebikezelwayo, okubalulekile ezisetshenziswayo zezimboni nezentengiselwano.
Indlela I-valve Yokulawula Imoto Esebenza Ngayo
Indlela Yokusebenza Yevalvu Yokulawula Imoto
Injini kagesi inika amandla ivalvu yokulawula imoto. Le moto iguqula amandla kagesi abe ukunyakaza komshini. I-actuator kagesi ithola isignali yokulawula evela ohlelweni lokulawula oluphakathi. Ngokusekelwe kulesi signali, imoto kagesi engaphakathi kwe-actuator ishayela ingxenye yomshini. Le ngxenye ingaba yigiya, isikulufu, noma enye indlela. Njengoba imoto ijikeleza, iguqula amandla kagesi abe amandla omshini. La mandla omshini abese elungisa indawo yevalvu. Le nqubo isebenza kahle ivalvu.
Izinhlobo ezahlukene zama-motor kagesi zifeza le njongo. Uhlobo olulodwa oluvamile yi-motor evalwe ngokuphelele yi-squirrel-cage. Lawa ma-motor aqinile futhi anikeza i-torque enkulu. Anamandla aphansi okungapheli kanye nesilinganiso sokufakwa kwe-insulation se-F class. Amaswishi okuvikela ukushisa ngokweqile akhelwe ngaphakathi avimbela umonakalo. Kuma-actuator e-electro-hydraulic, imoto ishayela ipompo ye-hydraulic ngaphakathi kwe-hydraulic loop evaliwe. Le nhlanganisela yemoto nepompo iqondisa uwoyela endaweni oyifunayo. Lokhu kwenza kube lula ukulawula ama-valve okuzenzakalelayo e-quarter-turn.
Amasignali okulawula aqondisa la ma-actuator. Ama-actuator avame ukusebenzisa ukulawula kwamaphuzu amathathu. Aphinde aphendule kumasignali e-analog, njenge-0–10 V noma i-4–20 mA. Izinhlelo ze-Fieldbus zinikeza enye indlela yokudlulisa amasignali. La masignali atshela imoto ukuthi ingayihambisa kanjani ivalvu.
Izingxenye Eziyinhloko Zevalvu Yokulawula Imoto
Ivalvu yokulawula imoto inezingxenye eziningana ezibalulekile. Lezi zifaka phakathi i-actuator, umzimba wevalvu, kanye ne-positioner. Izinzwa zokuphendula nazo zibalulekile. I-actuator igcina imoto kagesi kanye nendlela eshukumisa ivalvu. Umzimba wevalvu uqukethe izingxenye zangaphakathi ezisebenzisana ngqo noketshezi.
Izindlela zokuphendula ziqinisekisa indawo eqondile kanye nokulawula.
- Izinzwa zokusondela eziholela ekuvuseleleniziyizinzwa ezingezona ezokuthintana. Zisebenzisa i-oscillator ukudala amasimu kagesi. Uma insimbi eqhubayo isondela, yehlisa insimu, ishintshe i-voltage. Isekethe ye-trigger iguqula lokhu kube isignali yedijithali yokuvula/yokuvala. Lezi zinzwa zibonisa indawo ye-valve.
- Izinzwa zokusondela kwehholofuthi isebenza ngaphandle kokuthintana. I-transistor ye-Hall iguqula i-Hall sensing ibe isignali yedijithali yokuvula/ukuvala. Ilinganisa ibanga ukusuka ensimini yamagnetic kuya ephini lokubonisa esiqwini se-valve. Lokhu kubonisa indawo ye-valve, ikakhulukazi kuma-valve e-butterfly.
- Izinzwa ze-Namurziyizinzwa zokusondelana ze-DC ezinezintambo ezimbili. Zivame ukusetshenziswa ezindaweni eziyingozi ukuze kuboniswe indawo ye-valve. Zishintsha i-impedance lapho ithagethi yensimbi isondela, okunciphisa ukudonsa kwamandla kagesi. Lokhu kubangela i-galvanic isolator, okunikeza isignali yokukhipha yedijithali yokuvula/yokuvala ohlelweni lwe-PLC.
Lawa madivayisi okuphendula anikeza izinzuzo ezibalulekile.
- Banikeza idatha enembile yokuma kwendawo kanye nokunyakaza. Lokhu kwenza kube lula ukulawula nokuqapha izingxenye zemishini ngendlela enembile.
- Amadivayisi okuphendula athuthukisiwe avumela ukulungiswa okuzenzakalelayo kwesikhundla kanye nesivinini. Lokhu kuthuthukisa ukusebenza kahle futhi kunciphisa amaphutha ezinhlelweni ezizenzakalelayo.
- Lawa madivayisi asebenza njengezinzwa. Ahlinzeka ngedatha yendawo kanye nesivinini ngesikhathi sangempela. Le datha ibalulekile ukuze kube nokuzenzakalela okunembile nokuthembekile.
Ukubhanqa isilawuli nesilawuli se-electropneumatic noma i-valve ehambisanayo kwenza kube lula ukulawula okude okunembile kanye nempendulo evaliwe. Lokhu kusetha kususa izinkinga ezifana nokuwa noma ukukhukhuleka ezimweni zokucindezela kokungena okuhlukahlukene. Kuqinisekisa ukusebenza okuzinzile nokunembile.
Ukulawula Ukugeleza Ngezinhlobo Ezihlukene Zevalvu
Amavalvu okulawula imoto alawula ukugeleza koketshezi kusetshenziswa izinhlobo ezahlukene zamavalvu. Uhlobo ngalunye lunikeza izinzuzo ezithile zezinhlelo zokusebenza ezahlukene. Amavalvu e-Globe ayisinqumo esivamile sokulawulwa kokugeleza okunembile. Avame ukuhambisana nama-actuator e-linear valve, njengochungechunge lwe-ML7421 kanye ne-ML8824. Lawa ma-actuator avumela ukusetshenziswa kwawo ezinhlelweni zokusebenza ezidinga ukunemba okuphezulu kokulawula.
Amavalvu e-globe alawula ukugeleza koketshezi ngokusebenzisa ipulaki. Le plaki icindezela esihlalweni. Ivala ukugeleza noma ikuphambukise. Le ndlela iqinisekisa ukulawulwa kokugeleza koketshezi. Afanelekela ukulawula imidiya ehlukahlukene, okuhlanganisa amanzi, amagesi, kanye nomusi. Asebenza kahle ngisho nangaphansi kokucindezeleka okuphezulu kanye namazinga okushisa. Amavalvu e-globe ahlukaniswe njengamavalvu okulawula. Aklanyelwe ukulawula imidiya okuzinzile nokunembile. Ezinye izinhlobo zamavalvu, njenge-ball valves kanye namavalvu e-butterfly, nazo zihlanganiswa nama-motor actuators. Amavalvu ebhola anikeza amakhono okuvala okusheshayo. Amavalvu e-Butterfly anikeza umklamo omncane kanye nokulawula ukugeleza okuhle kwamapayipi amakhulu. Ukukhetha uhlobo lwevalvu kuncike ezidingweni ezithile zohlelo lokusebenza.
Ukusetshenziswa kwama-Motor Control Valve
Izinhlelo Zokulawula Izinqubo Zezimboni
Amavalvu okulawula izimoto adlala indima ebalulekile ezinhlelweni zokulawula izinqubo zezimboni. Aphatha ukugeleza koketshezi namagesi ngokunemba okukhulu. Izimboni ezifana nokukhiqiza amakhemikhali, ukuhluza uwoyela negesi, kanye nokucubungula ukudla kuncike kula mavalvu. Asiza ekugcineni izimo ezithile zenqubo njengokushisa, ingcindezi, kanye namazinga okugeleza. Lokhu kuqinisekisa ikhwalithi yomkhiqizo eqhubekayo kanye nokusebenza okuphephile. Isibonelo, ivalvu yokulawula imoto ilawula ngokunembile inani le-reagent engena ku-reactor yamakhemikhali. Iphinde ilawule ukugeleza komusi wezinqubo zokushisa noma zokupholisa. Ukusebenza kwawo okuzenzakalelayo nokukude kunciphisa ukungenelela kwabantu. Lokhu kunciphisa ingozi yamaphutha futhi kukhulisa kakhulu ukusebenza kahle kwesitshalo sonke. Lawa mavalvu abalulekile emisebenzini eyinkimbinkimbi, eqhubekayo lapho ukuphathwa koketshezi ngqo kubaluleke kakhulu.
Ukwakha Okuzenzakalelayo kanye ne-HVAC
Izinhlelo zokwakha ezenzakalelayo zisebenzisa kakhulu la ma-valve. Ziyizingxenye eziyisisekelo ezinhlelweni zokushisa, ukungenisa umoya, kanye ne-air conditioning (HVAC). La ma-valve alawula ngokunembile ukugeleza kwamanzi ashisayo noma abandayo kuma-heat exchanger nama-coil ahlukahlukene. Lesi senzo silawula ngqo amazinga okushisa angaphakathi kanye nomswakama. Aphinde aphathe ukuvulwa nokuvalwa kwama-air dampers ukuze aqondise ukugeleza komoya ngaphakathi kwemigudu yokungenisa umoya. Lokhu kuqinisekisa ikhwalithi yomoya efanele kanye nenduduzo yokushisa kwabahlali. Isibonelo, i-motor control valve ilungisa ukugeleza kwamanzi kuyunithi ye-fan coil ngokusekelwe ekufundweni kwezinga lokushisa legumbi ngesikhathi sangempela. Lokhu kulawula okunamandla kusiza izakhiwo ukuthi zizuze ukonga amandla okukhulu ngokuvimbela ukufudumeza noma ukupholisa okungadingekile. Zibalulekile ekudaleni izindawo zangaphakathi ezikhululekile, ezisebenzisa amandla kahle, nezinempilo ezakhiweni zezentengiselwano, ezibhedlela, nasezindaweni ezinkulu zokuhlala. Ukuhlanganiswa kwazo ezinhlelweni zezakhiwo ezihlakaniphile kuvumela ukuqapha nokulawula okuphakathi.
Amavalvu okulawula izimoto abalulekile ekuphathweni koketshezi okunembile nokuzenzakalelayo. Alawula ukugeleza koketshezi kude, okuthuthukisa ukusebenza kahle, ukuphepha, kanye nokulawula ezinhlelweni ezahlukahlukene. Lawa mavalvu abalulekile emisebenzini yesimanje yezimboni, yezentengiselwano, kanye nengqalasizinda. Amakhono awo athuthukile aqinisekisa ukusebenza kahle kanye nokuthembeka kuzo zonke izinhlelo zokusebenza ezibalulekile.
Imibuzo Evame Ukubuzwa
Uyini umsebenzi oyinhloko wevalvu yokulawula imoto?
Ivalvu yokulawula injini izenzekela ngokuzenzakalelayo ukulawulwa kokugeleza koketshezi. Isebenzisa injini kagesi ukulungisa ngokunembile indawo yevalvu. Lokhu kuthuthukisa ukusebenza kahle nokulawula ezinhlelweni ezahlukene.
Ama-valve okulawula imoto aqinisekisa kanjani ukulawulwa kokugeleza okunembile?
Basebenzisa ama-motor kagesi kanye nezindlela ezithuthukisiwe. Lezi zingxenye zivumela indawo eqondile ye-valve. Izinzwa zempendulo zinikeza idatha yesikhathi sangempela yokulungiswa okunembile.