Vavu yamadzi yamagetsi imagwira ntchito ngati "malo olamulira anzeru" m'machitidwe amakono oyendetsera kutentha kwa magalimoto. Mwa kuwongolera bwino momwe kayendedwe ka madzi kakuyendera komanso kuchuluka kwa choziziritsira, imasunga kutentha kwa galimotoyo m'mikhalidwe yosiyanasiyana yogwirira ntchito.
Mu gawo loziziritsira injini, valavu yamadzi yamagetsi imagwira ntchito ngati node yofunikira yolumikizira zinthu monga injini, radiator, ndi heater core. Ntchito yake yayikulu ndikusintha molondola njira zoziziritsira ndi kuchuluka kwa madzi kutengera momwe galimoto imagwirira ntchito nthawi yeniyeni. Mfundo yowongolera imatsatira njira yonse yotsekedwa: "kupeza chizindikiro - kugwiritsa ntchito lamulo - mayankho a momwe zinthu zilili."
Galimoto ikayamba kugwira ntchito, zigawo zina monga sensa ya kutentha kwa injini ndi chipangizo chowongolera mpweya zimagwira ntchito ngati "malo owonera," kutumiza deta yeniyeni—monga kutentha kwa silinda, kutentha kwa malo, ndi kutentha komwe kwakhazikitsidwa—ku Electronic Control Unit (ECU). Pambuyo pokonza njira, ECU imatumiza malamulo owongolera magetsi ku valavu yamadzi, ndikulongosola bwino mlingo wotsegulira womwe mukufuna (wothandizira malamulo osapitirira 0% mpaka 100%) kapena kusinthana kwa njira kofanana.
Mphamvu yofulumira ya ma valve amadzi amagetsi imadalira njira zawo zoyendetsera zolumikizidwa.
Pakadali pano, njira ziwiri zazikulu zogwiritsira ntchito zimagwiritsidwa ntchito kwambiri:
- 1. Kugwira Ntchito kwa Solenoid: Imagwiritsa ntchito malo ogwiritsira ntchito ma electromagnetic fields kuti iyendetse valavu mwachangu, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsa ntchito ma electromagnetic fields omwe amafuna kuyatsa/kuzima pafupipafupi kapena kusintha njira mwachangu.
- 2. Kuyendetsa Galimoto: Imagwiritsa ntchito mota ya DC yophatikizidwa ndi makina otumizira giya molondola kuti ikwaniritse kulamulira kozungulira. Izi zimathandiza kusintha kotseguka kolondola kwambiri (kulondola kowongolera mpaka ±1%), komwe ndi koyenera kugwiritsidwa ntchito komwe kumafuna kulamulira kayendedwe ka madzi kokhazikika.
Ma valve amadzi amagetsi opangidwa ndi Nanfeng Group amagwiritsa ntchito yankho la "DC motor + gearbox + position sensor", zomwe zimapangitsa kuti pakhale kuwongolera kolondola kwa ma valve ndi kayendedwe ka madzi. Sensor ya position imapereka mayankho ofanana a voltage kutengera ngodya ya valvu yozungulira, ndikuwonetsetsa kuti kulondola komanso kubwerezabwereza mu closed-loop control.
Mndandanda wazinthuzi umapereka mainchesi a madoko kuyambira 16 mm mpaka 25 mm, ndipo kukula kwa mapaipi olumikizira kungasinthidwe malinga ndi zosowa za makasitomala. Makamaka, chitsanzo cha mainchesi a 25 mm chimathandizira kuwongolera kayendedwe ka madzi kuyambira 5 L/min mpaka 100 L/min, kukwaniritsa zofunikira zosiyanasiyana zamachitidwe oyendetsera kutentha.
Mu makina atsopano oyendetsera kutentha kwa magalimoto amphamvu, ma valve amadzi amagetsi amathandizira kulumikizana kodziyimira pawokha, kudula, kusinthana kwa njira, ndi kulamulira kofanana kwa choziziritsira m'magawo osiyanasiyana kudzera mu zizindikiro zamagetsi zowongolera. Valavu yamadzi yodziwika bwino ya njira zitatu imaphatikiza thupi la valavu, choyendetsera, ndi bulaketi kukhala gulu laling'ono. Imagwiritsa ntchito kapangidwe ka valavu ya mpira yomwe imasintha njira zamadzi kudzera mu kuzungulira, yokhala ndi ngodya yoyendera ya 90°, yothandizira kusintha kofanana komanso kusintha kwa mode.
Mndandanda wa ma valve umapereka zabwino zazikulu izi:
- 1. Kugwira ntchito bwino kwambiri posindikiza ndi kutayikira kochepa
- 2. Kulondola kwambiri kwa malamulo ndi makhalidwe owongolera mzere
- 3. Kuthamanga kwachangu poyankha ndi kuphedwa kolondola
- 4. Nthawi yayitali yogwira ntchito yoyenera kugwiritsa ntchito ma switching pafupipafupi
- 5. Kukana kuthamanga ndi dzimbiri komwe kumasintha malinga ndi malo ovuta a media
- 6. Kugwiritsa ntchito mphamvu zochepa ndi zinthu zopulumutsa mphamvu
- 7. Kuchuluka kwa madzi komwe kumafunikira kuti magalimoto azigwira ntchito molimbika
Nthawi yotumizira: Marichi-08-2026
