Ivalvu yesango kwayeivalvu yebhabhathane zombini zidlala indima yokutshintsha nokulawula ukuhamba kwamanzi ekusetyenzisweni kwemibhobho. Kakade ke, kusekho indlela kwinkqubo yokukhetha ivalvu yamabhabhathane kunye nevalvu yesango. Ukuze kuncitshiswe ubunzulu bokugqunywa komhlaba wombhobho kuthungelwano lokuhambisa amanzi, ngokubanzi imibhobho emikhulu yobubanzi ixhotyiswe ngeevalvu zamabhabhathane, ezingenampembelelo ingako kubunzulu bokugqunywa komhlaba, kwaye zizama ukukhetha iivalvu zamasango.
Yintoni umahluko phakathi kwevalvu yebhabhathane kunye nevalvu yesango?
Ngokwendlela esebenza ngayo ivalvu yesango kunye nevalvu yebhabhathane, ivalvu yesango inokumelana nokuhamba kwamanzi okuncinci kunye nokusebenza kakuhle kokutywina. Ngenxa yokuba indlela yokuhamba kwepleyiti yevalvu yesango kunye ne-medium ikwi-engile ethe nkqo, ukuba ivalvu yesango ayitshintshwanga endaweni yayo kwipleyiti yevalvu, ukukhuhla i-medium kwipleyiti yevalvu kuya kwenza ipleyiti yevalvu inyikime. , Kulula ukonakalisa uphawu lwevalvu yesango. Ivalvu yebhabhathane, eyaziwa ngokuba yi-flap valve, luhlobo lwevalvu elawulayo enesakhiwo esilula. Ivalvu yebhabhathane enokusetyenziselwa ukulawula i-on-off ye-medium yepayipi yoxinzelelo oluphantsi ithetha ukuba ilungu lokuvala (idiski okanye ipleyiti yebhabhathane) yidiski, ejikeleza i-shaft yevalvu ukuze ivuleke kwaye ivalwe. Ivalvu enokusetyenziselwa ukulawula ukuhamba kweentlobo ezahlukeneyo zolwelo ezifana nomoya, amanzi, umphunga, imidiya eyahlukeneyo ebolileyo, udaka, ioyile, isinyithi esilulwelo kunye nemidiya ye-radioactive. Idlala indima enkulu yokusika nokugoba kwipayipi. Inxalenye yokuvula nokuvala ivalvu yebhabhathane yipleyiti yebhabhathane emilise okwediski, ejikeleza i-axis yayo emzimbeni wevalvu ukuze ifezekise injongo yokuvula nokuvala okanye yokulungisa. Ipleyiti yebhabhathane iqhutywa yisiqu sevalvu. Ukuba ijika ibe ngama-90°, ingagqibezela ukuvula nokuvala kube kanye. Ngokutshintsha i-engile yokuphambuka kwediski, ukuhamba kwesixhobo kunokulawulwa.
Iimeko zokusebenza kunye nomgangatho: I-Butterfly valve ifanelekile ukuhambisa ulwelo olune-corrosive kunye nolungaboliyo kwiinkqubo zobunjineli ezifana nomvelisi, igesi yamalahle, igesi yendalo, igesi ye-petroleum enyibilikisiweyo, igesi yesixeko, umoya oshushu nobandayo, ukunyibilikisa iikhemikhali kunye nokukhuselwa kokusingqongileyo kokuveliswa kombane, ukuhanjiswa kwamanzi kunye nokuhambisa amanzi, njl. Kwimibhobho yomgangatho, isetyenziselwa ukulungisa nokunqumla ukuhamba komgangatho.
Ivalvu yesango inesango elivulekayo nelivalayo, indlela isango elihamba ngayo ijonge kwicala lolwelo, kwaye ivalvu yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo kuphela. Ukuphucula indlela eveliswa ngayoor ubuchule kunye nokulungisa ukuphambuka kwe-engile yomphezulu wokutywina ngexesha lokucubungula, eli sango libizwa ngokuba yi-elastic gate.
Xa ivalvu yesango ivaliwe, umphezulu wokutywina unokuxhomekeka kuphela kuxinzelelo oluphakathi ukuze utywine, oko kukuthi, uxhomekeke kuphela kuxinzelelo oluphakathi ukuze ucinezele umphezulu wokutywina wesango ukuya kwisihlalo sevalvu kwelinye icala ukuqinisekisa ukutywinwa komphezulu wokutywina, okuzitywina ngokwako. Uninzi lweevalvu zesango zitywinwa ngenkani, oko kukuthi, xa ivalvu ivaliwe, isango kufuneka linyanzeliswe kwisihlalo sevalvu ngamandla angaphandle ukuqinisekisa ukuqina komphezulu wokutywina.
Imo yokuhamba: Isango levalvu yesango lihamba kumgca othe tye kunye nesiqu sevalvu, esikwabizwa ngokubaI-OS&Y ivalvu yesango. Ngokwesiqhelo, kukho imisonto yetrapezoidal kwinduku yokuphakamisa. Nge-nut ephezulu yevalvu kunye nomngxuma wesikhokelo emzimbeni wevalvu, intshukumo ejikelezayo iguqulwa ibe yintshukumo ethe tyaba, oko kukuthi, i-torque yokusebenza itshintshwa ibe yi-operating thrust. Xa ivalvu ivuliwe, xa ukuphakama kwesango kulingana nobukhulu be-1:1 ubukhulu bevalvu, umjelo wolwelo awuthintelwanga ngokupheleleyo, kodwa le ndawo ayinakujongwa ngexesha lokusebenza. Ekusetyenzisweni kwangempela, incopho yesiqu sevalvu isetyenziswa njengophawu, oko kukuthi, indawo apho ingenakuvulwa khona, njengendawo yayo evulekileyo ngokupheleleyo. Ukuze kuthathelwe ingqalelo into yokutshixa ngenxa yotshintsho lobushushu, idla ngokuvulelwa kwindawo ephezulu, ize ibuyele kwi-1/2-1 turn, njengendawo yevalvu evuleke ngokupheleleyo. Ke ngoko, indawo evulekileyo ngokupheleleyo yevalvu imiselwa ngokwendawo yesango (oko kukuthi i-stroke). Ezinye ii-stem stem zevalvu yesango zibekwe kwisango, kwaye ukujikeleza kwesondo lesandla kuqhuba isiqu sevalvu ukuba sijikeleze, okwenza isango liphakame. Olu hlobo lwevalvu lubizwa ngokuba yiRotary stem gate valve okanyeI-NRS ivalvu yesango.
Ixesha lokuthumela: Julayi-14-2022
