Iivalvu ezininzi eziqhelekileyo ezisetyenziswa kwimibhobho yemizi-mveliso, iivalvu zebhola zinoluhlu olubanzi lokusetyenziswa, nokuba ngamanzi, ioyile, igesi okanye imibhobho yemidiya eqhelekileyo okanye iimeko zokusebenza ezinzima eziqulethe amasuntswana obunzima obuphezulu, nokuba kubushushu obuphantsi, ubushushu obuphezulu, okanye indawo egqwalisayo, ungabona isithunzi sevalvu yebhola. Njengevalvu eqhelekileyo esetyenziswa kakhulu, kuyimfuneko ukuqonda indlela echanekileyo yokufaka ukuze usebenzise imveliso ngokuchanekileyo nangokwesayensi (1) Ukulungiselela ngaphambi kokufakwa
①Ivalvu yebholaIndlela yokufaka Iipayipi zangaphambili nangasemva zevalvu yebhola zilungile. Iipayipi zangaphambili nangasemva kufuneka zibe yi-coaxial, kwaye iindawo zokutywina zeeflanges ezimbini kufuneka zilingane. Ipayipi kufuneka ikwazi ukumelana nobunzima bevalvu yebhola, kungenjalo ipayipi kufuneka ixhotyiswe ngenkxaso efanelekileyo.
②Coca imibhobho ngaphambi nasemva kwevalvu ukuze ususe ioyile, i-welding slag kunye nazo zonke ezinye izinto ezingcolileyo ezikwipayipi.
③Jonga uphawu lwevalvu yebhola ukuze ubone ukuba ibhola ayiphelelanga. Vula kwaye uvale isiseko sevalvu izihlandlo ezininzi ukuqinisekisa ukuba isebenza kakuhle.
④Susa indawo ekhuselayo kwi-flange yokudibanisa yevalvu yebhola yasekhohlo.
⑤Jonga umngxuma wevalvu, ususe ukungcola okunokwenzeka, uze ucoce umngxuma. Nokuba yinto encinci engaphandle phakathi kwesihlalo sevalvu kunye nebhola inokonakalisa umphezulu wokuvala wevalvu.
(2) Inkqubo yokufakela
① Faka ioyile yokuthambisa kwipayipi. Nokuba yiphi na isiphelo sevalvu sifakwa kwisiphelo esikhululekileyo se-h. Ivalvu yokuqhuba i-lever ingafakwa nakweyiphi na indawo kwipayipi. Nangona kunjalo, ivalvu yebhola yesandla enebhokisi yegiya kunye nevalvu yebhola yepneumatic ene-pneumatic driver zifakelwe zimi nkqo, oko kukuthi, zifakelwe kwipayipi ethe tye, kwaye isixhobo sokuqhuba singaphezulu kwepayipi.
②Uyilo lwe-flange yevalvu kunye ne-flange yombhobho lufuna ukufakwa kwe-gasket.
③Iibholithi ezikwiflange mazilingane kwaye ziqiniswe nganye nganye kwaye zilingane. ④Qhagamshela umbhobho we-pneumatic 'xa kusetyenziswa umqhubi we-pneumatic).
(3) Ukuhlolwa emva kokufakwa
① Sebenzisa umqhubi ukuvula nokuvala ivalvu yebhola izihlandlo ezininzi. Ifanele ibe bhetyebhetye kwaye ingabi nazinzo ukuqinisekisa ukuba isebenza kakuhle. ②Uyilo lombhobho woqhagamshelo lufuna ukuhlolwa kokusebenza kokutywinwa komphezulu we-flange yombhobho kunye nebhola.
①Ivalvu yebholaIndlela yokufaka Iipayipi zangaphambili nangasemva zevalvu yebhola zilungile. Iipayipi zangaphambili nangasemva kufuneka zibe yi-coaxial, kwaye iindawo zokutywina zeeflanges ezimbini kufuneka zilingane. Ipayipi kufuneka ikwazi ukumelana nobunzima bevalvu yebhola, kungenjalo ipayipi kufuneka ixhotyiswe ngenkxaso efanelekileyo.
②Coca imibhobho ngaphambi nasemva kwevalvu ukuze ususe ioyile, i-welding slag kunye nazo zonke ezinye izinto ezingcolileyo ezikwipayipi.
③Jonga uphawu lwevalvu yebhola ukuze ubone ukuba ibhola ayiphelelanga. Vula kwaye uvale isiseko sevalvu izihlandlo ezininzi ukuqinisekisa ukuba isebenza kakuhle.
④Susa indawo ekhuselayo kwi-flange yokudibanisa yevalvu yebhola yasekhohlo.
⑤Jonga umngxuma wevalvu, ususe ukungcola okunokwenzeka, uze ucoce umngxuma. Nokuba yinto encinci engaphandle phakathi kwesihlalo sevalvu kunye nebhola inokonakalisa umphezulu wokuvala wevalvu.
(2) Inkqubo yokufakela
① Faka ioyile yokuthambisa kwipayipi. Nokuba yiphi na isiphelo sevalvu sifakwa kwisiphelo esikhululekileyo se-h. Ivalvu yokuqhuba i-lever ingafakwa nakweyiphi na indawo kwipayipi. Nangona kunjalo, ivalvu yebhola yesandla enebhokisi yegiya kunye nevalvu yebhola yepneumatic ene-pneumatic driver zifakelwe zimi nkqo, oko kukuthi, zifakelwe kwipayipi ethe tye, kwaye isixhobo sokuqhuba singaphezulu kwepayipi.
②Uyilo lwe-flange yevalvu kunye ne-flange yombhobho lufuna ukufakwa kwe-gasket.
③Iibholithi ezikwiflange mazilingane kwaye ziqiniswe nganye nganye kwaye zilingane. ④Qhagamshela umbhobho we-pneumatic 'xa kusetyenziswa umqhubi we-pneumatic).
(3) Ukuhlolwa emva kokufakwa
① Sebenzisa umqhubi ukuvula nokuvala ivalvu yebhola izihlandlo ezininzi. Ifanele ibe bhetyebhetye kwaye ingabi nazinzo ukuqinisekisa ukuba isebenza kakuhle. ②Uyilo lombhobho woqhagamshelo lufuna ukuhlolwa kokusebenza kokutywinwa komphezulu we-flange yombhobho kunye nebhola.
Ixesha lokuthumela: Juni-30-2021