1. Gcina i-valve ihlanzekile

Gcina izingxenye zangaphandle nezinyakazayo ze-valve zihlanzekile, futhi ugcine ubuqotho bopende we-valve. Ungqimba olungaphezulu lwevalvu, intambo ye-trapezoidal esiqwini kanye ne-stem nut, ingxenye eshelelayo ye-stem nut kanye nobakaki kanye negiya layo lokudlulisela, isibungu nezinye izingxenye kulula kakhulu ukuqoqa ukungcola okuningi njengothuli, amabala kawoyela. kanye nezinsalela zezinto ezibonakalayo, okubangela ukuguga nokugqwala ku-valve.

Ngakho-ke, i-valve kufanele ihlale ihlanzekile. Ngokuvamile, uthuli olukuvalvu kufanele lushanelwe ngebhulashi nomoya ocindezelwe, noma luhlanzwe ngisho nangebhulashi lentambo yethusi kuze kube indawo yokucubungula kanye nendawo efanayo ikhombisa ukucwebezela kwensimbi, futhi indawo kapende ikhombisa umbala oyinhloko kapende. Isicupho sesitimu kufanele sihlolwe okungenani kanye ngeshifu ngumuntu onikezwe ngokukhethekile; Vula ipulaki engezansi ye-valve yokudonsa kanye ne-steam trap njalo ukuze uyihlanze, noma uyiqaqe njalo ukuze ihlanzwe, ukuze uvimbele ivalvu ukuthi ingavinjwa ukungcola.

2.Gcina i-valve igcotshiwe

Ukugcotshwa kwe-valve, intambo ye-trapezoidal yevalve, izingxenye ezishelelayo ze-stem nut kanye nobakaki, izingxenye zokuxhuma zendawo yokuthwala, igiya lokudlulisela kanye negiya lezikelemu, nezinye izingxenye ezihambisanayo kufanele zigcinwe ngokugcobisa okuhle kakhulu. amazinga, ukuze kuncishiswe ukungqubuzana nokuvimbela ukuguga okuhambisanayo. Ezingxenyeni ezingenawo uphawu lwamafutha noma i-injector, okulula ukonakala noma ukulahleka ekusebenzeni, isofthiwe yesistimu yokugcoba egcwele kufanele ilungiswe ukuze kuqinisekiswe ukuhamba kwamafutha.

Izingxenye zokugcoba kufanele zigcotshwe njalo ngokuhambisana nezimo ezithile. I-valve evame ukuvulwa ngokushisa okuphezulu ifaneleka ukugcwalisa kanye ngesonto kuya enyangeni; Ungavami ukuvula, izinga lokushisa aliphezulu kakhulu isikhathi somjikelezo wokugcwalisa i-valve singaba side. Izinto zokugcoba zihlanganisa uwoyela wenjini, ibhotela, i-molybdenum disulfide negraphite. Amafutha enjini awafanele i-valve yokushisa ephezulu; Ibhotela alilingani, futhi. Ancibilike aphele. I-valve yokushisa ephezulu ilungele ukwengeza i-molybdenum disulfide kanye nokusula i-graphite powder. Uma amafutha kanye namanye amafutha asetshenziselwa izingxenye zokugcoba ezivezwe ngaphandle, njengentambo ye-trapezoidal namazinyo, kulula kakhulu ukungcoliswa ngothuli. Uma i-molybdenum disulfide ne-graphite powder zisetshenziselwa ukugcoba, akulula ukungcoliswa ngothuli, futhi umphumela wangempela wokugcoba ungcono kunebhotela. I-graphite powder akulula ukuthi isetshenziswe ngokushesha, futhi ingasetshenziswa ngenani elincane lamafutha omshini noma unamathisele olungisiwe wamanzi.

I-valve yepulaki enophawu lokugcwalisa amafutha kufanele igcwaliswe ngamafutha ngokuvumelana nesikhathi esibekiwe, ngaphandle kwalokho kulula kakhulu ukugqoka nokuvuza.

Ngaphandle kwalokho, akuvunyelwe ukungqongqoza, ukusekela izinto ezinzima noma ukuma ku-valve ukuvimbela i-valve ukuthi ingangcoli noma ilimale. Ikakhulukazi iminyango ye-mesh yezinto ezingezona ezensimbi nama-valve ensimbi, kufanele kwenqatshelwe.

Gcina ukunakekelwa kwempahla kagesi. Ukugcinwa kwezinto ezisebenza ngogesi akufanele kube ngaphansi kanye ngenyanga nje jikelele. Okuqukethwe kwesondlo kuhlanganisa: indawo engaphezulu izohlanzwa ngaphandle kokunqwabelana kothuli, futhi okokusebenza ngeke kungcoliswe umusi namafutha; Indawo yokuvala kanye nephuzu kufanele kuqine futhi kuqine. Akukho ukuvuza; Izingxenye zokugcoba zizogcwaliswa ngamafutha ngokuvumelana nemithethonqubo, futhi i-valve stem nut izogcotshwa ngamafutha; Ingxenye yezinto ezisebenza ngogesi izoba sesimweni esihle ngaphandle kokwehluleka kwesigaba, isilawuli sokushintsha kanye nokudluliselwa kwe-thermal akufanele kukhubeke, futhi ulwazi lokubonisa isibani kufanele lube olunembile.