¢ Ukuhlolwa kwamandla kwevalvu yokuphepha kuyafana nokwamanye amavalvu. Lapho kuhlolwa ingxenye engezansi yomzimba we-valve, ingcindezi yethulwa kusukela ku-I = I end, futhi indawo yokuvala ivaliwe; Lapho kuhlolwa ingxenye engenhla yomzimba we-valve kanye nesembozo se-valve, ukucindezela kwethulwa kusukela ekugcineni kwe-El, kanti ezinye iziphetho zivaliwe. Umzimba we-valve kanye nesembozo kuyafaneleka uma kungekho ukuvuza phakathi nesikhathi esibekiwe.
¢Ú Ukuhlolwa kokuvala kanye nokuhlolwa kwengcindezi engaguquki, ukusetshenziswa okuvamile kwe-medium yilokhu: ivalvu yokuphepha yesitimu enesitimu esigcwele njengesisetshenziswa sokuhlola; Ivalvu ye-ammonia noma amanye amagesi isebenzisa umoya njengendawo yokuhlola; Amavaluvu amanzi nolunye uketshezi olungagqwali asebenzisa amanzi njengendawo yokuhlola. Kwamanye amavalvu okuphepha abalulekile, i-nitrogen ivamise ukusetshenziswa njengendawo yokuhlola.
Ukuhlolwa kokuvala kuzokwenziwa ngenani lokucindezela okulinganiselwe njengokucindezela kokuhlola, futhi inani lezikhathi ngeke libe ngaphansi kwezimbili, futhi liyafaneleka uma kungekho ukuvuza phakathi nesikhathi esishiwo. Kunezindlela ezimbili zokuhlola ukuvuza: enye iwukuba uvale amalunga evalve yokuphepha, unamathisele uphawu lwephepha elincanyana ku-El flange ngebhotela, ukuqhuma kwephepha elincanyana ukuvuza, kanti enye ifanelekile; Okwesibili, sebenzisa ibhotela ukuze uvale ipuleti lepulasitiki elincanyana noma amanye amapuleti engxenyeni engezansi ye-outlet flange, ugcwalise amanzi ukuze uvale i-valve disc, futhi uhlole ukuthi amanzi awabhubhisi yini njengafanelekile. Inombolo yokucindezela okuqhubekayo kanye nokuhlolwa kwengcindezi yokuvuselela kabusha kwe-valve yokuphepha akufanele ibe ngaphansi kwezikhathi ze-3, futhi ifaneleka uma ihlangabezana nezidingo. Bheka izindlela zokuhlola ukusebenza kwe-GB/T 12242 1989 zamavalvu okuphepha ezivivinyweni ezihlukahlukene zokusebenza kwamavalvu okuphepha
Isikhathi sokuthumela: Apr-26-2021
