Vavu yolowera ndi gawo lofunika kwambiri la makina ojambulira mpweya wozungulira. Komabe, valavu yolowera ikagwiritsidwa ntchito pa compressor yokhazikika ya maginito yosinthasintha maginito, pakhoza kukhala kugwedezeka kwa valavu yolowera. Pamene mota ikuyenda pafupipafupi kwambiri, mbale yowunikira imagwedezeka, zomwe zimapangitsa kuti phokoso lilowe. Ndiye, kodi chifukwa chake valavu yolowera ya compressor yokhazikika ya maginito yosinthasintha maginito ndi chiyani?
Zifukwa zomwe zimachititsa kuti valavu yolowera ya compressor yokhazikika ya maginito yosinthika pafupipafupi igwedezeke:
Chifukwa chachikulu cha izi ndi kasupe pansi pa mbale ya valavu ya valavu yolowera. Pamene voliyumu ya mpweya wolowera ili yochepa, kayendedwe ka mpweya sikokhazikika ndipo mphamvu ya kasupe imakhala yayikulu, zomwe zimapangitsa kuti mbale ya valavu igwedezeke. Pambuyo posintha kasupe, mphamvu ya kasupe imakhala yochepa, zomwe zimatha kuthetsa mavuto omwe ali pamwambapa.
Mwachidule, valavu yolowera ikayamba kugwira ntchito, valavu yolowera ya compressor ya mpweya imatsekedwa, ndipo injini imayendetsa injini yayikulu kuti isagwire ntchito. Vavu ikadzaza, valavu yolowera imatsegulidwa. Nthawi zambiri, chitoliro cha gasi chokulirapo kuposa 5mm chimachotsedwa pamwamba pa chivundikiro cha mafuta ndi gasi, ndipo valavu yolowera imayendetsedwa ndi switch ya valavu ya solenoid (nthawi zambiri valavu ya solenoid imayatsidwa). Vavu ya solenoid ikapatsidwa mphamvu, valavu yolowera yopanda mpweya wopanikizika imapumidwa yokha ndikutsegulidwa, valavu yolowera imadzazidwa, ndipo compressor ya mpweya imayamba kukhuthala. Vavu ya solenoid ikachotsedwa mphamvu, mpweya wopanikizika umalowa mu valavu yolowera, kuthamanga kwa mpweya kumakweza pistoni, valavu yolowera imatsekedwa, ndipo valavu yotulutsa mpweya imatsegulidwa.
Kupanikizika kwa mpweya kumagawidwa m'njira ziwiri, njira imodzi yolowera mu valavu yotulutsa mpweya ndi njira ina yolowera mu compressor. Vavu yotulutsa mpweya ili ndi cholumikizira chosinthira kukula kwa utsi kuti ilamulire kuthamanga kwa mpweya mu mbiya yolekanitsa. Kupanikizika kumatha kusinthidwa kufika pa 3 kg, kuthamanga kumawonjezeka potembenukira mozungulira wotchi, ndipo kuthamanga kumachepa mozungulira wotchi, ndipo nati yosinthidwayo imakhazikika.
Njira yosinthira voliyumu ya mpweya wa valavu yokweza, pamene mpweya wachilengedwe womwe wogwiritsa ntchito amagwiritsa ntchito uli wocheperako kuposa voliyumu yotulutsa mpweya yomwe yayikidwa mu chipangizocho, kupanikizika mu dongosolo la netiweki ya mapaipi a wogwiritsa ntchito kudzakwera. Kupanikizika kukafika pamtengo wokhazikika wa kupsinjika kotsitsa mpweya, valavu ya solenoid imayendetsedwa, gwero la mpweya limadulidwa, ndipo chowongolera chimalowa mu valavu yolumikizana ya chowongolera mpweya. Pistoni imatsekedwa ndi mphamvu ya kasupe ndipo valavu yotulutsa mpweya imatsegulidwa. Mpweya wopanikizika womwe uli mu cholekanitsa mafuta ndi gasi umabwerera ku malo olowera mpweya, ndipo kupanikizika kumatsika kufika pamtengo winawake.
Panthawiyi, valavu yocheperako ya kupanikizika imatsekedwa, netiweki ya chitoliro cha ogwiritsa ntchito imalekanitsidwa ndi chipangizocho, ndipo chipangizocho chili mu mkhalidwe woti sichimanyamula katundu. Pamene kupanikizika kwa netiweki ya chitoliro cha ogwiritsa ntchito kumatsika pang'onopang'ono kufika pamtengo wokhazikika wa kukakamiza kwa katundu, valavu ya solenoid imalandira mphamvu ndipo imalumikizidwa ku gwero la mpweya wowongolera wa valavu yolumikizidwa mu chowongolera cholowera. Pogwiritsa ntchito kupanikizika kumeneku, pisitoni imatsegulidwa motsutsana ndi mphamvu ya kasupe, nthawi yomweyo valavu yotulutsa mpweya imatsekedwa, ndipo chipangizocho chimayambiranso kugwira ntchito yokweza.
Izi ndi zomwe zachitika pamwambapa chifukwa cha kugwedezeka kwa valavu yolowera ya compressor yokhazikika ya maginito yosinthasintha pafupipafupi. Valavu yolowera imagwira ntchito limodzi ndi valavu ya solenoid, sensor yokakamiza, ndi chowongolera cha microcomputer kuti chiwongolere kusintha kwa doko lolowera la compressor. Pamene chipangizocho chikuyamba, valavu yolowera imatsekedwa, yomwe imagwira ntchito yosintha kayendedwe ka mpweya, kotero kuti compressor imayamba pang'onopang'ono; compressor ya mpweya ikayamba kugwira ntchito mokwanira, valavu yolowera imatsegulidwa kwathunthu; compressor ya mpweya ikagwira ntchito popanda katundu, valavu yolowera imatsekedwa ndipo mafuta ndi gasi zimalekanitsidwa. Kupanikizika mu separator kumatulutsidwa kufika pa 0.25-0.3MPa kuti zitsimikizire kuti mafuta akuthamanga bwino mu injini yayikulu; makina akatsekedwa, valavu yolowera imatsekedwa kuti aletse mpweya mu separator ya mafuta kuti usabwerere m'mbuyo, zomwe zimapangitsa kuti rotor ibwerere m'mbuyo ndipo mafuta alowe m'doko lolowera.
Nthawi yotumizira: Ogasiti-01-2023
