Ma compressor a mpweya opindika ndi ma compressor abwino osunthika, omwe amakwaniritsa cholinga cha kupsinjika kwa mpweya kudzera mu kuchepetsa pang'onopang'ono kuchuluka kwa ntchito.
Voliyumu yogwira ntchito ya screw air compressor imapangidwa ndi ma cogs awiri a ma rotors omwe amayikidwa motsatizana ndipo amalumikizana wina ndi mnzake komanso chassis yomwe imalola ma rotors awiriwa. Makinawa akamayenda, mano a ma rotors awiriwa amalowetsedwa m'ma cogs a wina ndi mnzake, ndipo pamene rotor ikuzungulira, mano omwe amalowetsedwa m'ma cogs a wina amasunthira kumapeto kwa utsi, kotero kuti voliyumu yomwe imatsekedwa ndi mano a winayo imachepa pang'onopang'ono, ndipo kupanikizika kumawonjezeka pang'onopang'ono mpaka kupanikizika kofunikira kufikidwe. Kupanikizika kukafika, ma cogs amalumikizana ndi doko lotulutsa utsi kuti apeze utsi.
Pambuyo poti alveolar yalowetsedwa ndi mano a mdani wake, mipata iwiri yolekanitsidwa ndi mano imapangidwa. Alveolar yomwe ili pafupi ndi kumapeto kwa suction ndi voliyumu yokoka, ndipo yomwe ili pafupi ndi kumapeto kwa utsi ndi voliyumu ya mpweya wokakamizidwa. Pogwiritsa ntchito compressor, mano a rotor yotsutsana yomwe yalowetsedwa mu cogging amasunthira kumapeto kwa utsi, kotero kuti voliyumu yokoka ikupitiriza kukula ndipo voliyumu ya mpweya wokakamizidwa imapitirira kuchepa, motero kuzindikira njira yokoka ndi kukakamiza mu cogging iliyonse. Pamene mpweya wokakamizidwa wa mpweya wokakamizidwa mu cogging ufika pa voliyumu yofunikira ya utsi, cogging imangolumikizana ndi mpweya wotuluka ndipo njira yotulutsira utsi imayamba. Kusintha kwa voliyumu yokoka ndi voliyumu yokakamira yogawidwa mu cogging ndi mano a rotor ya mdani kumabwerezedwa, kotero kuti compressor ikhoza kupuma nthawi zonse, kukanikiza ndi kutulutsa utsi.
Mfundo yogwirira ntchito ndi kapangidwe ka screw compressor：
1. Njira Yokokera: Chopondera chokokera mbali ya chokokera cha mtundu wa screw chiyenera kupangidwa kuti chipinda chokokera chizitha kupumidwa mokwanira. Chokokera mpweya cha mtundu wa screw chilibe gulu la valavu yolowetsa ndi kutulutsa mpweya. Chopokeracho chimasinthidwa pokhapokha potsegula ndi kutseka valavu yowongolera. Rotor ikazungulira, malo olowera mano a main and assistant rotors amasamutsidwira ku khomo lolowera mpweya, malo a z* ndi akulu, panthawiyi malo olowera mano a rotor amalumikizana ndi mpweya waulere wa cholowera mpweya, chifukwa mpweya wonse womwe uli mu cholowera mano umatulutsidwa panthawi yotulutsa mpweya, ndipo cholowera mano chimakhala mu vacuum kumapeto kwa chotulutsa mpweya. Chikasamutsidwira ku cholowera mpweya, malo a z* ndi akulu. Panthawiyi, malo olowera mano a rotor amalumikizana ndi mpweya waulere wa cholowera mpweya, chifukwa mpweya wonse womwe uli mu cholowera mano umatulutsidwa panthawi yotulutsa mpweya. Kumapeto kwa chotulutsa mpweya, cholowera mano chimakhala mu vacuum state. Ikasamutsidwira ku cholowera mpweya, mpweya wakunja umalowa mkati ndikuyenda mozungulira mu mbewa ya dzino ya ma rotor akuluakulu ndi othandizira. Kusamalira screw air compressor kumakumbutsa kuti mpweya ukadzaza mbewa yonse ya dzino, mbali yomaliza ya mbali yolowera mpweya ya rotor imatembenuzidwa kuchoka ku mbewa ya mpweya ya chassis, ndipo mpweya pakati pa mbewa za dzino umatsekedwa.
2. Njira yotsekera ndi kutumiza: Kumapeto kwa kuyamwa kwa ma rotor akuluakulu ndi othandizira, mbewa ya mano ya ma rotor akuluakulu ndi othandizira ndi chassis zimatsekedwa. Panthawiyi, mpweya umatsekedwa mu mbewa ya mano ndipo sutulukanso, ndiko kuti, [njira yotsekera]. Ma rotor awiriwa amapitiliza kuzungulira, ndipo nsonga zawo za mano ndi mbewa za mano zimagwirizana kumapeto kwa kuyamwa, ndipo pamwamba pa anastomosis pang'onopang'ono zimapita kumapeto kwa utsi.
3. Njira yopondereza ndi kulowetsa mafuta: Panthawi yotumiza, malo opondereza amasunthira pang'onopang'ono kumapeto kwa utsi, ndiko kuti, malo opondereza mano pakati pa malo opondereza mano ndi malo opondereza utsi amachepa pang'onopang'ono, ndipo mpweya womwe uli mu malo opondereza mano umakanikizidwa pang'onopang'ono ndipo kuthamanga kumawonjezeka. Iyi ndi njira yopondereza. Nthawi yomweyo popondereza, mafuta opaka mafuta amathiridwanso mu chipinda chopondereza ndikusakanikirana ndi mpweya wa chipinda chifukwa cha kusiyana kwa kuthamanga.
4. Njira yotulutsira utsi: Pamene mbali ya maukonde a rotor yokonza ma compressor a screw air compressor isamutsidwa kuti ilumikizane ndi utsi wa chassis, (panthawiyi mpweya wopanikizika ndi wokwera kwambiri) mpweya wopanikizika umayamba kutuluka mpaka pamwamba pa maukonde a nsonga ya dzino ndipo dzira la dzino litasunthidwa kupita ku mbali ya kumapeto kwa utsi. Panthawiyi, malo pakati pa pamwamba pa maukonde a ma rotor awiri ndi doko la utsi la chassis ndi zero, ndiko kuti, (njira yotulutsira utsi) yatha. Nthawi yomweyo, kutalika kwa dzira pakati pa pamwamba pa maukonde a rotor ndi malo olowera mpweya a chassis kumafika pa z*kutalika, ndipo njira yoyamwa ikuchitika.
Ma compressor a mpweya wozungulira amagawidwa m'magulu awiri: otseguka, theka lotsekedwa, ndi otsekedwa kwathunthu.
1. Kompresa yozungulira bwino: thupi limagwiritsa ntchito kapangidwe kachitsulo kopangidwa ndi chitsulo chapamwamba kwambiri, chopanda ma porosity ambiri komanso kutentha pang'ono; thupi limagwiritsa ntchito kapangidwe ka khoma lawiri ndi njira yotulutsira utsi, mphamvu yayikulu komanso mphamvu yabwino yochepetsera phokoso; mphamvu zamkati ndi zakunja za thupi zimakhala zofanana, ndipo palibe chiopsezo cha kuthamanga kwakukulu kotseguka ndi theka; chipolopolocho ndi kapangidwe kachitsulo kokhala ndi mphamvu yayikulu, mawonekedwe okongola komanso kulemera kopepuka. Kapangidwe koyima kamatengedwa, ndipo kompresa imakhala ndi malo ochepa, omwe amathandiza kuti mitu yambiri ya choziziritsira ikonzedwe; chotengera chapansi chimamizidwa mu thanki yamafuta, ndipo chotengeracho chimapaka mafuta bwino; mphamvu ya axial ya rotor imachepetsedwa ndi 50% poyerekeza ndi mtundu wotsekedwa pang'ono ndi wotseguka (mphamvu yolinganiza ya shaft ya mota kumbali ya utsi); palibe chiopsezo cha chotchingira cha mota chopingasa, kudalirika kwakukulu; pewani kukhudzidwa kwa rotor ya screw, valavu ya spool, ndi kulemera kwa rotor ya mota pa kulondola kofananira, ndikuwonjezera kudalirika; njira yabwino yosonkhanitsira. Kapangidwe koyima ka sikuru popanda pampu yamafuta kumathandiza kuti compressor izitha kugwira ntchito kapena kuyimitsa popanda kusowa kwa mafuta. Bearing yapansi imamizidwa mu thanki yonse yamafuta, ndipo bearing yapamwamba imagwiritsa ntchito mphamvu yosiyana kuti ipereke mafuta; zofunikira pakupanikizika kwa makina ndizochepa. Pakagwa ngozi, ntchito yoteteza mafuta onyamula katundu imapewa kusowa kwa mafuta onyamula katundu, zomwe zimathandiza kuti chipangizocho chitseguke panthawi yosinthira. Zoyipa: Pogwiritsa ntchito kuziziritsa kwa utsi, mota imakhala padoko lotulutsa utsi, zomwe zingayambitse kuti coil ya mota ipse mosavuta; kuphatikiza apo, kulephera sikungathetsedwe pakapita nthawi.
2. Chokometsera cha screw chotsekedwa pang'ono
Injini yoziziritsidwa ndi spray, kutentha kochepa kwa injini, moyo wautali; compressor yotseguka imagwiritsa ntchito mpweya kuziziritsa injini, kutentha kwa injini kumakhala kwakukulu, zomwe zimakhudza moyo wa injini, ndipo malo ogwirira ntchito a chipinda cha kompyuta ndi osauka; kugwiritsa ntchito utsi kuziziritsa injini, kutentha kwa injini kumakhala kwakukulu kwambiri, moyo wa injini ndi waufupi. Nthawi zambiri, mafuta akunja ndi akulu kukula, koma magwiridwe antchito ndi apamwamba kwambiri; mafuta omangidwa mkati amaphatikizidwa ndi compressor, yomwe ndi yaying'ono kukula, kotero zotsatira zake zimakhala zochepa. Kupatukana kwachiwiri kwa mafuta kumatha kufika 99.999%, zomwe zingatsimikizire kuti compressor imapaka mafuta bwino pansi pa mikhalidwe yosiyanasiyana yogwirira ntchito. Komabe, compressor ya plunger semi-enclosed screw imayendetsedwa ndi giya kuti iwonjezere liwiro, liwiro ndi lalikulu (pafupifupi 12,000 rpm), kuwonongeka ndi kwakukulu, ndipo kudalirika ndi kochepa.
Zitatu, compressor yotseguka ya screw
Ubwino wa mayunitsi otseguka ndi awa: 1) Compressor imalekanitsidwa ndi mota, kotero kuti compressor ili ndi ntchito zambiri; 2) Compressor yomweyo ingagwiritsidwe ntchito ku ma refrigerant osiyanasiyana. Kuwonjezera pa ma halogenated hydrocarbon refrigerant, ammonia ingagwiritsidwenso ntchito ngati refrigerant posintha zinthu za zigawo zina; 3) Malinga ndi ma refrigerant osiyanasiyana ndi momwe amagwirira ntchito, ma mota okhala ndi mphamvu zosiyanasiyana angagwiritsidwe ntchito. Zoyipa zazikulu za mayunitsi otseguka ndi izi: (1) Chisindikizo cha shaft n'chosavuta kutulutsa, chomwe chimakonzedwanso pafupipafupi ndi ogwiritsa ntchito; (2) Mota yokhala ndi zida imazungulira mwachangu kwambiri, phokoso la mpweya ndi lalikulu, ndipo phokoso la compressor palokha ndi lalikulu, zomwe zimakhudza chilengedwe; (3) Ndikofunikira kukhazikitsa cholekanitsa mafuta chosiyana, choziziritsira mafuta ndi zigawo zina zovuta za dongosolo la mafuta, chipangizocho ndi chachikulu, chosagwira ntchito komanso chosasamalidwa.
Nthawi yotumizira: Meyi-05-2023
