Isisebenzi somlilo esiyingcweti, uyawazi amasistimu ama-alamu amathathu amakhulu izithando zokuncibilika zokungeniswa?

Izinhlelo eziyinhloko zokuvikela i-alamu yezithando zokuncibilika zokungeniswa zihlanganisa isistimu ye-alamu yokupholisa amanzi, isistimu yokuvikela phansi kanye nesistimu yokuvikela ukugcwala ngokweqile. Lesi sihloko sethula futhi sihlaziya lezi zinhlelo zokuvikela ezintathu ngokuningiliziwe.

1. Isistimu ye-alamu yokupholisa amanzi

Uhlelo lokupholisa amanzi luwuhlelo olusizayo olubaluleke kakhulu lwesithando somlilo esincibilikisa induction, esingahle sihlukaniswe sibe izingxenye ezimbili: uhlelo lokupholisa umzimba wesithando somlilo kanye nesistimu yokupholisa yekhabhinethi kagesi.

Ikhoyili yesithando somlilo esincibilika sokungeniswa ilinyazwe ngeshubhu lethusi lesikwele. Nakuba i-resistivity yethusi iphansi, ukudlula kwamanje kukhulu, futhi okwamanje kuthubhu yethusi kushintshela ohlangothini lodonga lwe-crucible ngenxa yomphumela wesikhumba. , Ukubangela ukushisa okukhulu kwepayipi yethusi (ngakho upende wokushisa osetshenziselwa ebusweni bepayipi yethusi kufanele ube namandla okumelana nokushisa okuphezulu). Ukuze uqiniseke ukuthi ikhoyili yesithando somlilo ivikelekile kanye nokuphepha kwechibi elincibilikisiwe, umthamo owanele wokupholisa kufanele uqinisekiswe ngesikhathi sokuncibilika. Futhi idivayisi yokupholisa akumele ivalwe ngaphambi kokuba izinga lokushisa ku-crucible lehle libe ngu-100°C. Ingxenye yokupholisa yekhabhinethi kagesi isetshenziselwa ikakhulukazi ukupholisa ama-thyristors, ama-capacitor, ama-inductors kanye nemigoqo yethusi ezokhiqiza ukushisa okukhulu ngesikhathi sokusebenza. Ukuze kuzuzwe umphumela omuhle wokupholisa, ngokuvamile kuyadingeka ukufaka umbhoshongo wokupholisa ozimele ngaphandle. Kuye ngamandla emishini, umzimba ozimele wesithando somlilo kanye nombhoshongo wokupholisa wekhabhinethi kagesi ngezinye izikhathi kuyadingeka.

Amasistimu we-alamu wokupholisa amanzi wokungenisa induction avamile ahlanganisa:

① Izinga lokushisa lamanzi, ingcindezi kanye nemitha yokugeleza efakwe epayipini lokungena kwamanzi iqapha imingcele yokungena kwamanzi esistimu yokupholisa amanzi. Uma izinga lokushisa lamanzi lidlula inani elibekiwe, amandla ombhoshongo wokupholisa kufanele akhuliswe ngokuzenzakalelayo. Uma izinga lokushisa lidlula inani eliyisixwayiso noma ingcindezi nokugeleza kuphansi kakhulu, i-alamu kanye nokunikezwa kwamandla kufanele kuphazamiseke.

②Izinzwa lokushisa ezidinga ukusethwa kabusha ngesandla zifakwa ochungechungeni nezindawo zokupholisa zamapayipi amanzi omzimba wesithando somlilo kanye nekhabhinethi kagesi. Ngesikhathi sokulungiswa, indawo engavamile inganqunywa ngokushesha ngokusho kwenkinobho yokusetha kabusha inzwa yezinga lokushisa.

2. Inverter system grounding alarm

Ngesikhathi sokusebenza kwesithando somlilo sokuncibilika kwe-induction, i-coil yomzimba wesithando somlilo kanye ne-capacitor yakha i-high-voltage resonance circuit. Uma ukumelana nokufakwa komhlabathi sekuphansi, i-electrode yokukhipha amandla ephansi ene-voltage ephezulu ijwayele ukuba nezingozi ezinkulu zokuphepha. Ukuqinisekisa ukusebenza okujwayelekile kwemishini, kufanele kufakwe uhlelo lokuvikela ukuvuza komhlabathi.

Izinhlelo ezijwayelekile zokuvikela ukuvuza komhlaba zenza imisebenzi emibili:

I-1) Thola ukuthi zikhona yini izindlela ezingavamile ezinokumelana okuphansi komhlaba phakathi kwama-capacitor, amakhoyili esithando somlilo namabhasi;

2) Hlola ukuthi akukho yini ukumelana okuphansi phakathi kwekhoyili yesithando somlilo kanye nokushajwa kwensimbi. Lokhu kumelana okuphansi kungase kubangelwe ukushajwa kwensimbi okungena ulayini lwesithando somlilo ukuze kubangele “ukungena kwensimbi” noma okuqukethwe kwamanzi ngokweqile olayini lwesithando somlilo. Imfucumfucu ye-conductive ewela olayini besithando somlilo ingase ibangele ukumelana nokuncipha.

Isimiso sesistimu ye-alamu esetshenziswa kakhulu yilesi: sebenzisa amandla kagesi e-DC ane-voltage ephansi kusekethe ye-resonance, futhi amakhoyili omzimba wesithando somlilo ancibilikayo avaleleke kancane. Ngakho-ke, i-voltage ye-DC esetshenzisiwe izokhiqizwa phakathi kwekhoyili nechibi elincibilikisiwe. Amanye amaza okuvuza amancane angatholwa imitha ye-milliampere. Uma ukuvuza kwamanje kukhuphuka ngokungavamile, kubonisa ukuthi ukumelana kwesekhethi ezwakalayo emhlabathini kuncipha ngokungavamile. Isithando somlilo esincibilikisayo esisebenzisa ukuvikela ukuvuza komhlabathi ngokuvamile sisebenzisa intambo yensimbi engenasici ngaphansi kwesithando somlilo ukuze iholwe olayini besithando somlilo futhi isekelwe phansi. Lokhu kungaqinisekisa amandla anguziro echibi elincibilikisiwe futhi kuvimbele izingozi zokuphepha phakathi nenqubo yokususa i-slag. Ingaqinisekisa futhi ukuthi isistimu ingathola ngokunembile isimo “sokungena kwensimbi”.

Ukuze uhlole ukuthi ingabe isistimu ye-alamu yaphansi isebenza kahle noma nini, intambo eholayo kumjikelezo we-resonant ingaxhunywa phansi ngokusebenzisa i-inductor kanye nesixhumi. Ngokulawula othintana naye ukuze enze ngokwenziwa ukujikeleza okufushane phansi, ukuzwela kwesistimu ye-alamu kungatholwa ngaphansi kwesisekelo sokuqinisekisa ukuphepha. Ukuze uqinisekise ukuphepha kwenqubo yokuncibilikisa, hlola ukuthi idivayisi ye-alamu yokuvuza komhlaba yesithando somlilo ijwayelekile yini ngaphambi kokuvula ngakunye kwesithando somlilo.

3. Ukuvikelwa kwe-Overcurrent kanye ne-overvoltage

I-short-circuit yomthamo wamandla wefrikhwensi emaphakathi noma ukwehluleka kokuguqula okubuyela emuva kuzobangela isekethe yokulungisa kabusha ukuthi yakhe i-short-circuit current ngokusebenzisa i-inverter circuit), ebeka usongo kuyo yonke i-rectifier ne-inverter thyristor, ngakho-ke umjikelezo wokuvikela kufanele ufakwe.