Amavalvu amaningana avamile asetshenziswa kumapayipi ezimboni, amavalvu ebhola anobubanzi obukhulu bokusetshenziswa, kungakhathaliseki ukuthi amanzi, uwoyela, igesi noma amapayipi avamile noma izimo zokusebenza ezinzima eziqukethe izinhlayiya zokuqina okuphezulu, kungakhathaliseki ukuthi izinga lokushisa eliphansi, izinga lokushisa eliphezulu, noma indawo egqwalisayo, ungabona isithunzi sevalvu yebhola. Njengevalvu evamile esetshenziswa kabanzi, kubalulekile ukuqonda indlela efanele yokufaka ukuze usebenzise umkhiqizo ngendlela efanele nangokwesayensi (1) Ukulungiselela ngaphambi kokufakwa
①I-valve yebholaIndlela yokufaka Amapayipi angaphambili nangemuva evalvu yebhola aselungile. Amapayipi angaphambili nangemuva kufanele abe yi-coaxial, futhi izindawo zokuvala zama-flange amabili kufanele zilingane. Ipayipi kufanele likwazi ukumelana nesisindo sevalvu yebhola, ngaphandle kwalokho ipayipi kumele lifakwe ukwesekwa okufanele.
②Hlanza amapayipi ngaphambi nangemva kwevalvu ukuze ususe uwoyela, i-welding slag kanye nakho konke ukungcola okusepayipini.
③Hlola uphawu lwevalvu yebhola ukuze uthole ukuthi ibhola liphelele. Vula futhi uvale isisekelo sevalvu izikhathi eziningana ukuqinisekisa ukuthi lisebenza kahle.
④ Susa ingxenye evikelayo ku-flange yokuxhuma yevalvu yebhola yesobunxele.
⑤Hlola imbobo yevalvu, ususe ukungcola okungenzeka, bese uhlanza imbobo. Ngisho nezinto ezincane ezingaphandle phakathi kwesihlalo sevalvu nebhola zingalimaza indawo yokuvala yevalvu.
(2) Inqubo yokufaka
① Faka uwoyela wokugcoba epayipini. Noma yikuphi ukuphela kwevalvu kufakwe u-J ekugcineni okukhululekile kwe-h. Ivalvu yokushayela i-lever ingafakwa kunoma iyiphi indawo epayipini. Kodwa-ke, ivalvu yebhola ephathwayo enebhokisi legiya kanye nevalvu yebhola eqhutshwa umoya enomshayeli we-pneumatic kufakwe kuqonde phezulu, okungukuthi, kufakwe epayipini elivundlile, futhi idivayisi yokushayela ingaphezu kwepayipi.
②Umklamo we-flange ye-valve kanye ne-flange yepayipi kudinga ukufakwa kwe-gasket.
③Amabhawodi eflange kufanele alingane futhi aqiniswe ngalinye ngalinye futhi ngokulinganayo. ④Xhuma ipayipi lomoya 'uma kusetshenziswa umshayeli womoya).
(3) Ukuhlolwa ngemva kokufakwa
① Sebenzisa umshayeli ukuvula nokuvala ivalvu yebhola izikhathi eziningana. Kufanele iguquguquke futhi ingabi nokuma ukuze kuqinisekiswe ukuthi isebenza kahle. ②Ukwakheka kwepayipi lokuxhuma kudinga ukuhlolwa kokusebenza kokuvala ubuso be-flange joint yepayipi kanye nebhola.
①I-valve yebholaIndlela yokufaka Amapayipi angaphambili nangemuva evalvu yebhola aselungile. Amapayipi angaphambili nangemuva kufanele abe yi-coaxial, futhi izindawo zokuvala zama-flange amabili kufanele zilingane. Ipayipi kufanele likwazi ukumelana nesisindo sevalvu yebhola, ngaphandle kwalokho ipayipi kumele lifakwe ukwesekwa okufanele.
②Hlanza amapayipi ngaphambi nangemva kwevalvu ukuze ususe uwoyela, i-welding slag kanye nakho konke ukungcola okusepayipini.
③Hlola uphawu lwevalvu yebhola ukuze uthole ukuthi ibhola liphelele. Vula futhi uvale isisekelo sevalvu izikhathi eziningana ukuqinisekisa ukuthi lisebenza kahle.
④ Susa ingxenye evikelayo ku-flange yokuxhuma yevalvu yebhola yesobunxele.
⑤Hlola imbobo yevalvu, ususe ukungcola okungenzeka, bese uhlanza imbobo. Ngisho nezinto ezincane ezingaphandle phakathi kwesihlalo sevalvu nebhola zingalimaza indawo yokuvala yevalvu.
(2) Inqubo yokufaka
① Faka uwoyela wokugcoba epayipini. Noma yikuphi ukuphela kwevalvu kufakwe u-J ekugcineni okukhululekile kwe-h. Ivalvu yokushayela i-lever ingafakwa kunoma iyiphi indawo epayipini. Kodwa-ke, ivalvu yebhola ephathwayo enebhokisi legiya kanye nevalvu yebhola eqhutshwa umoya enomshayeli we-pneumatic kufakwe kuqonde phezulu, okungukuthi, kufakwe epayipini elivundlile, futhi idivayisi yokushayela ingaphezu kwepayipi.
②Umklamo we-flange ye-valve kanye ne-flange yepayipi kudinga ukufakwa kwe-gasket.
③Amabhawodi eflange kufanele alingane futhi aqiniswe ngalinye ngalinye futhi ngokulinganayo. ④Xhuma ipayipi lomoya 'uma kusetshenziswa umshayeli womoya).
(3) Ukuhlolwa ngemva kokufakwa
① Sebenzisa umshayeli ukuvula nokuvala ivalvu yebhola izikhathi eziningana. Kufanele iguquguquke futhi ingabi nokuma ukuze kuqinisekiswe ukuthi isebenza kahle. ②Ukwakheka kwepayipi lokuxhuma kudinga ukuhlolwa kokusebenza kokuvala ubuso be-flange joint yepayipi kanye nebhola.
Isikhathi sokuthunyelwe: Juni-30-2021