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Ngokusekelwe kumingcele yesikhunta kanye nezidingo zenqubo ezinikezwa umsebenzisi (isikhunta esiphezulu nesingezansi kanye nesikhunta esiphakathi kufanele sishiswe sibe ngu-170 ° C ngesikhathi esisodwa), futhi kuhlanganiswe namaphuzu abalulekileisikhunta isilawuli lokushisaukukhetha okutholwe emiphumeleni yosesho, okulandelayo kuyanconywa ukukhetha kwephampu kawoyela yezilawuli ezimbili zokushisa kwesikhunta:
I. Isikhunta Temperature ControllerUkukhetha Amandla
1. Ukubala Amandla Okushisa
Amandla okushisa kufanele abalwe ngokusekelwe esisindweni sesikhunta, ukuhluka kwezinga lokushisa, umthamo wokushisa othize, nesikhathi sokushisa. Ifomula ithi:
KW = W × Δt × C / (860 × T)
W: Isisindo sesikhunta (kg) (i-1.5t ngayinye yesikhunta esiphezulu nesingaphansi = 1500kg, 3t yesikhunta esiphakathi = 3000kg)
Δt: Umehluko wezinga lokushisa (170°C - 20°C izinga lokushisa le-ambient = 150°C)
C: Umthamo wokushisa othize (0.11 wesikhunta sensimbi)
T: Isikhathi sokushisa (kuthatha ihora elingu-1)
Isibonelo sokubala:
Amandla okukodwaisikhunta isilawuli lokushisakwesikhunta esiphezulu nesingezansi:
KW = (1500 × 2) × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (kucatshangelwa ukulahlekelwa ukushisa, kunconywa ukuphindaphinda okungu-20%, ngakho-ke kukhethwa i-70 kW).
Amandla okulawula izinga lokushisa eliphakathi:
kW = 3000 × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (okufana no-70 kW).
Izincomo Zomkhiqizi:
Isikhunta esingamathani amakhulu (isb, isikhunta esiphakathi samathani angu-3) sidinga amandla aphezulu ukuze kuqinisekiswe isikhathi sokushisa. Bheka ukumiswa kwesikhunta emishinini yokuphonsa amathani angaphezu kuka-800 (24 kW/mold). Nokho, umsebenzisi udinga ukushisisa jikelele, ngakho ukubala okuphelele kuyadingeka.
2. Ukunemba kokulawula izinga lokushisa kanye nokuzinza
Inqubo ye-die-casting idinga ukunemba kokulawula izinga lokushisa phakathi kuka-±1°C. Kudingeka isistimu yokulawula ye-PID noma ye-PLC efakwe inzwa yokushisa enembayo ephezulu.
Imiklamo ye-dual-circuit noma ye-multi-circuit ifaneleka kakhulu isikhunta esineziteshi eziningi zikawoyela ukuqinisekisa ukufana kwezinga lokushisa.
II. Ukukhetha Iphampu Yamafutha
1. Izidingo Zokugeleza Nengcindezi
Ukubalwa kokugeleza: Isamba sevolumu yesiteshi sikawoyela nesivinini sokujikeleza kufanele kuhlangatshezwe. Umthamo womzila owodwa kawoyela (ububanzi 19mm = 1.9cm, ubude 11m = 1100cm):
V = πr² × L = 3.14 × (0.95)² × 1100 ≈ 3125cm³ = 3.125L/isiteshi.
Isamba sokugeleza kwesikhunta esiphezulu/esiphansi: iziteshi zikawoyela eziyi-8, i-inlet engu-4 kanye ne-4 yokuphuma, isamba sevolumu engu-25L. Izinga lokugeleza elinconyiwe ≥ 100L/min liyanconywa (ukuqinisekisa ukushintshaniswa kokushisa okusheshayo).
Izinga lokugeleza lesikhunta esiphakathi: Izibalo ezifanayo ziyadingeka, ezidinga ≥ 80L/min.
Izidingo zokucindezela:
Amashaneli kawoyela amade namagatsha amaningi adinga iphampu yokucindezela okuphezulu (≥ 4bar) ukuze anqobe ukumelana. Kunconywa iphampu yokushayela kazibuthe (ekwazi ukumelana nezinga lokushisa eliphezulu futhi enokwesekwa kokubuyela emuva) kuyanconywa.
2. Uhlobo Lwephampu Yamafutha kanye Nezici
Amaphampu agelezayo: Isakhiwo esilula, esilungele izidingo zokugeleza ezinzile; amaphampu agelezayo: Onga amandla kodwa abizayo, alungele izimo zokugeleza ezishintshashintshayo.
Material: Amafutha ashisayo asezingeni eliphezulu (afika ku-350°C) adinga umzimba wepompo yensimbi engagqwali kanye nezimpawu ezimelana nezinga lokushisa eliphezulu (njenge-fluororubber).
III. Izincomo Zokukhetha Eziphelele
Isikhunta Temperature ControllerUkucushwa:
Phezulu/NgaphansiIsikhunta Temperature Controller: Amandla okushisa angu-70kW, izinga lokugeleza elingu-100L/min, ukucindezela kwamabha angu-4, idizayini yesekethe ekabili.
MaphakathiIsikhunta Temperature Controller: Amandla okushisa angu-70kW, izinga lokugeleza elingu-80L/min, ukucindezela kwebha engu-4, ukwakheka kwesekhethi eyodwa (kudingeka amasekhethi amaningi ukuze kubekwe izinga lokushisa).
Izici ezengeziwe:
Umsebenzi wokuvuthela komoya kanye nowokubuyisela uwoyela (ubuyisela uwoyela oshisayo ngesikhathi sokushintsha kwesikhunta).
Ukulawula kwe-PLC, kusekela ukuhlelwa kwejika lokushisa kanye nokugawulwa kwamaphutha.
Ukuphepha nokusebenza kahle kwamandla:
Ukuvikela izinga lokushisa elingaphezulu, i-alamu enoketshezi oluphansi, nezinye izici zokuphepha.
Idizayini yephampu eguquguqukayo yokonga amandla inciphisa ukusetshenziswa kwamandla kwesikhathi eside.
IV. Izinyathelo zokuzivikela
Uketshezi lokudlulisa ukushisa: Amafutha okwenziwa asezingeni eliphezulu (njengengxube ye-biphenyl-diphenyl ether). Shintsha njalo (kunconyiwe ngonyaka).
Ukuxhunywa Kwepayipi: Sebenzisa ishubhu lensimbi elivunguzayo elingu-19mm ukuze unciphise ukulahlekelwa ukushisa.
Uma ufuna ukwazi okwengeziwe ngomkhiqizo wethu, sicelaXhumana nathi!
Isikhathi sokuthumela: Aug-11-2025
