1,Mfundo yogwirira ntchitowa pisitoni kompresa ndi silinda, valavu ndi silinda kwa kubwereza mayendedwe pisitoni wopangidwa ndi voliyumu ntchito kusintha mosalekeza kumaliza. Ngati simuganizira ntchito yeniyeni ya pisitoni kompresa kutayika kwa voliyumu ndi kutaya mphamvu (ndiko kuti, njira yabwino yogwirira ntchito), pisitoni kompresa crankshaft pa kasinthasintha kwa sabata kuti amalize ntchitoyi, imatha kugawidwa m'mayamwidwe, kupsinjika ndi kutulutsa mpweya.
Njira ya compression:pisitoni kuchokera kumalo otsika otsika kupita kumtunda, kuyamwa ndi kutulutsa valavu mu malo otsekedwa, mpweya mu silinda yotsekedwa umakanizidwa, pamene voliyumu ya silinda imachepetsedwa pang'onopang'ono, kupanikizika, kutentha pang'onopang'ono kumawonjezeka mpaka kuthamanga kwa mpweya wa silinda ndi kutulutsa mpweya wofanana. Njira yopondereza nthawi zambiri imawonedwa ngati njira ya isentropic.
Njira yotulutsa mpweya: pisitoni ikupitiriza kusunthira m'mwamba, zomwe zimapangitsa kuti mpweya wa silinda ukhale waukulu kuposa kuthamanga kwa utsi, valavu yotulutsa mpweya imatsegulidwa, mpweya wa silinda mu pisitoni kukankhira kupanikizika kwa silinda mu chitoliro cha utsi, mpaka kusuntha kwa pistoni kupita kumtunda wapamwamba. Panthawiyi, chifukwa cha mphamvu ya masika a valve yotulutsa mpweya komanso mphamvu yokoka ya valve yokha, valavu yotulutsa mpweya inatseka mapeto a mpweya.
2, ntchito za piston kompresa
Ntchito zazikulu: kusungirako kuzizira ndi kuzizira ndi msika wozizira kumagwiritsira ntchito ma compressor a semi-hermetic piston; ntchito zochepa: firiji mpweya air conditioning.
Semi-hermetic piston kompresa posungirako kuzizira nthawi zambiri imayendetsedwa ndi mota yamitengo inayi, ndipo mphamvu yake yovotera nthawi zambiri imakhala pakati pa 60-600 KW. Chiwerengero cha masilindala ndi 2 - 8, mpaka 12. 2, pisitoni kompresa ntchito
Ntchito zazikuluzikulu: kusungirako kuzizira ndi firiji ndi msika woziziritsa zimagwiritsa ntchito kompresa ya semi-hermetic piston; ntchito zochepa: firiji mpweya air conditioning.
Semi-hermetic piston kompresazaozizira yosungirakonthawi zambiri imayendetsedwa ndi mota yamitengo inayi, ndipo mphamvu yake yovotera nthawi zambiri imakhala pakati pa 60-600KW. Chiwerengero cha masilindala ndi 2 - 8, mpaka 12.
3, ubwino wa piston compressors
(1) Kupanikizika kofunikira kungathe kupezedwa mosasamala kanthu za kuthamanga kwa magazi, ndi zovuta zambiri zowonongeka mpaka ku 320MPa (ntchito zamakampani) komanso ngakhale 700MPa, (mu labotale).
(2) Kutha kwa makina amodzi pamlingo uliwonse wothamanga mpaka 500 m3 / min.
(3) Zofunikira zochepa pamagulu ambiri okakamiza, zomwe zimapangidwa ndi zitsulo wamba, zosavuta kukonza komanso zotsika mtengo kumanga.
(4) Kutentha kwapamwamba kwambiri, mayunitsi akuluakulu ndi apakatikati amatha kufika pafupifupi 0.7 ~ 0.85 adiabatic dzuwa.
(5) Kusinthasintha kwamphamvu mukamakonza voliyumu ya gasi, mwachitsanzo, kuchuluka kwa mpweya kumakhala kokulirapo komanso sikukhudzidwa ndi kupanikizika kwambiri kapena kutsika, ndipo kumatha kutengera kuchuluka kwamphamvu komanso kuchuluka kwa voliyumu ya firiji.
(6) Kulemera ndi mawonekedwe a gasi alibe mphamvu pakugwira ntchito kwa kompresa, ndipo kompresa yemweyo angagwiritsidwe ntchito pamipweya yosiyanasiyana.
(7) Makina oyendetsa ndi osavuta, makamaka omwe amagwiritsa ntchito ma motors amagetsi, nthawi zambiri popanda kuwongolera liwiro, ndipo amatha kugwiritsidwa ntchito kwambiri.
(8) ukadaulo wa pisitoni kompresa ndi wokhwima, kupanga kugwiritsa ntchito zomwe zidasokonekera.
4, kuipa kwa piston compressor
(1) dongosolo zovuta ndi bulky, kuvala mbali, lalikulu pansi malo, ndalama mkulu, yokonza ntchito, ntchito mkombero lalifupi, koma pambuyo khama akhoza kufika maola oposa 8000.
(2) Liwiro silokwera, makinawo ndi aakulu komanso olemetsa, ndipo mphamvu yotulutsa makina amodzi nthawi zambiri imakhala yosakwana 500 m3 / min.
(3) Kugwedezeka pakugwira ntchito kwa makina.
(4) Utsi wa mpweya si mosalekeza, mpweya ndi pulsation, amene n'zosavuta chifukwa kugwedezeka kwa chitoliro, nthawi zambiri kuwononga chitoliro maukonde kapena mbali makina chifukwa airflow pulsation ndi resonance milandu kwambiri.
(5) Kuwongolera koyenda pogwiritsa ntchito voliyumu yocheperako kapena mavavu odutsa, ngakhale kuti ndi osavuta, osavuta komanso odalirika, koma ndi kutayika kwakukulu kwa mphamvu ndikuchepetsa magwiridwe antchito panthawi yolemetsa pang'ono.
(6) Ma compressor opaka mafuta okhala ndi mafuta mugasi omwe amafunika kuchotsedwa.
(7) Zomera zazikulu zogwiritsa ntchito ma seti angapo a kompresa pomwe pali oyendetsa ambiri kapena kulimba kwa ntchito ndikokwera.
Nthawi yotumiza: Aug-03-2022