Uhlobo lwe-Valve-Cartridge Yokusiza
Amavalvu aphikisayo anosizo lomshayeli enzelwe ukulawula umthwalo oweqile. I-valve yokuhlola ivumela ukugeleza kwamahhala
ukusuka ku-valve yokuqondisa (imbobo 2) ukuya emthwalweni (imbobo 1) kuyilapho i-valve esebenza ngokuqondile, esiza umshayeli igeleza
ukusuka echwebeni 1 ukuya ethekwini 2. Usizo lomshayeli ethekwini 3 lwehlisa ukumiswa okusebenzayo kwevalvu yokusiza ngezinga elinqunywe
isilinganiso somshayeli.
IZICI ZOBUCHWEPHESHE
Ama-valve e-counterbalance kufanele asethwe okungenani izikhathi ezingu-1.3 zokucindezela okukhulu okubangelwa umthwalo.
Guqula ukulungisa ngokwewashi ukuze wehlise ukulungiselelwa nokukhulula umthwalo.
Ukusetha okugcwele okuhambisana newashi kungaphansi kuka-200 psi (amabha angu-14).
I-backpressure ku-port 2 yengeza esimisweni sokukhululeka esisebenzayo ngesilinganiso esingu-1 kanye nesilinganiso somshayeli esiphindaphinda i-backpressure.
Ukubuyisela kabusha kudlula u-85% wengcindezi ebekiwe lapho i-valve isethiwe evamile. Izilungiselelo ezingaphansi kokucindezela okujwayelekile kwesethi zingase zibangele amaphesenti aphansi okusetha kabusha.
Ama-cartridges amelana nelanga angafakwa ngqo kumgodi owenziwe ngomshini kundlu ye-actuator ukuze kuvikeleke okwengeziwe kanye nokuqina okuthuthukisiwe kusekethe.
Izingcindezi ezimbili zokuqhekeka kwe-valve ziyatholakala. Sebenzisa isheke elingu-25 psi (1,7 bar) ngaphandle uma i-actuator cavitation ikhathaza.
Le valve isebenzisa ama-orifices ukwehlisa isilinganiso somshayeli futhi ngenxa yalokho izodlula kufika ku-40 in³/min./1000 psi (0,7 L/min./70 bar) phakathi kwembobo 2 nembobo 3. Lenaukucatshangelwa kumasekethe e-master-slave kanye nasekuhlolweni kokuvuza kwama-valve-cylinder assemblies.
Zonke ibhalansi yezimbobo ezi-3, isilawuli somthwalo, kanye namakhatriji okuhlola umshayeli ukuze avuleke angashintshana ngokomzimba (okungukuthi, indlela yokugeleza efanayo, umgodi ofanayo wosayizi wozimele onikeziwe).
Ihlanganisa ukwakhiwa kwesitayela esintantayo seLanga ukuze kuncishiswe amathuba okubopha izingxenye zangaphakathi ngenxa yetorque yokufaka eyeqisayo kanye/noma i-catridge/cartridgeukuhlukahluka komshini.
UKUSEBENZA
Amavalvu aphikisayo anosizo lomshayeli enzelwe ukulawula umthwalo oweqile. Ivalvu yokuhlola ivumela ukugeleza kwamahhala ukusuka embobeni ② ukuya embobeni ① kuyilapho ibamba ngokuqondile, isizwa umshayeliizilawuli zevalvu yokusiza zigeleza ukusuka embobeni ① ukuya embobeni ② . Usizo lomshayeli ethekwini ③ lwehlisaukusetha okusebenzayo kwe-valve yokusiza ngenani elinqunywe isilinganiso somshayeli.
IZICI
1. Ama-valve aphikisayo kufanele asethwe okungenani izikhathi ezingu-1.3 kunomthwalo omkhulu owenziweingcindezi.
2. Ingcindezi engemuva esikhumulweni ② yengeza esimisweni sokukhululeka esisebenzayo ngesilinganiso esingu-1 kanye nomshayeliisilinganiso izikhathi i-backpressure.
3. Ukubuyisela kabusha kudlula u-85% wengcindezi ebekiwe lapho i-valve isethwe ngendlela evamile. Ukusetha phansikunokucindezela okujwayelekile okubekiwe kungase kubangele amaphesenti aphansi okusetha kabusha.
4.Isilungiselelo sokucindezela kwefekthri sisungulwe ku-30cc/min(2 in3/min).
Izici zobuchwepheshe
Umsebenzi:
I-valve yokulinganisa enokuvulwa komshayeli isetshenziselwa ukulawula izimo zokugcwala ngokweqile. Amafutha ageleza ngokukhululeka ohlangothini olulodwa ukusuka echwebeni ② ukuya echwebeni ①; uwoyela uqhutshwa ngokuqondile, futhi isilekeleli somshayeli siyachichima ukusuka echwebeni ① ukuya echwebeni ②. Imbobo ③ iyimbobo yokulawula eyinsiza, futhi ukusetha okusebenzayo komsebenzi wokuchichima kuyehliswa ngokuya ngenani lesilinganiso sokulawula.
Isici:
I-1.Ukucindezela okukhulu kwesethi okungenani izikhathi ezingu-1.3 zokucindezela okukhulu komthwalo.
2.Ingcindezi yangemuva echwebeni ② yengezwe enanini lokusetha le-valve yokusiza ngokuvumelana nokuphindaphinda kwe-"control ratio + 1", okungukuthi, inani elingeziwe = (1 + control ratio) × inani lokucindezela.
3.Esimisweni esijwayelekile, inani lokucindezela lokuvala likhulu kune-85% yenani lokucindezela elimisiwe; uma ingaphansi kwesilungiselelo esijwayelekile, iphesenti yenani lokucindezela lokuvala lincishiswa ngokufanele.
4.Isilungiselelo sefekthri sibhekisela ekucindezelweni lapho i-valve yokukhulula ivuliwe (izinga lokugeleza liyi-30cc/min).
