Ohlelweni lwamapayipi oketshezi, i-valve iyisici sokulawula, umsebenzi wayo oyinhloko ukuhlukanisa imishini kanye nesistimu yamapayipi, ukulawula ukugeleza, ukuvimbela ukubuyela emuva, ukulawula nokukhipha ingcindezi.
Amavalvu angasetshenziswa ukulawula ukugeleza komoya, amanzi, isitimu, imithombo yezindaba eyonakalisayo ehlukahlukene, udaka, uwoyela, insimbi ewuketshezi kanye nemidiya ekhipha imisebe nezinye izinhlobo zoketshezi.Njengoba uhlelo lwamapayipi lokukhetha i-valve efanelekile kakhulu lubaluleke kakhulu, ngakho-ke, ukuqonda izici ze-valve kanye nokukhethwa kwezinyathelo ze-valve nesisekelo sekubaluleke kakhulu.
Ukuhlukaniswa kwama-valve:
Okokuqala, i-valve ingahlukaniswa izigaba ezimbili:
Uhlobo lokuqala lwe-valve othomathikhi: thembela kokuphakathi (uketshezi, igesi) ikhono layo kanye nesenzo sayo sevalvu.
Njenge-valve yokuhlola, i-valve yokuphepha, i-valve elawulayo, i-valve yesicupho, i-valve yokunciphisa njalonjalo.
Uhlobo lwesibili lwe-valve yokushayela: imanuwali, kagesi, i-hydraulic, i-pneumatic yokulawula isenzo se-valve.
Njenge-valve yesango, i-globe valve, i-throttle valve, i-butterfly valve, i-valve yebhola, i-plug valve nokunye.
Okubili, ngokwezici zesakhiwo, ngokuya ngesiqondiso sezingxenye zokuvala ezihlobene nokunyakaza kwesihlalo se-valve zingahlukaniswa:
1. Isimo sokuvala: ingxenye yokuvala ihamba phakathi nendawo yesihlalo;
2. Isimo sesango: ingxenye yokuvala ihamba phakathi nendawo yesihlalo esiqondile;
3. Iqhude nebhola: ingxenye yokuvala i-plunger noma ibhola, ezungeza umugqa ophakathi nendawo;
4. I-Swing shape: izingxenye ezivalayo zizungeza i-eksisi ngaphandle kwesihlalo;
5. I-Disc: i-disc yezingxenye ezivaliwe izungeza i-axis yesihlalo;
6. I-valve yesilayidi: ingxenye yokuvala ishelela iqonde ku-perpendicular esiteshini.
Ezintathu, ngokusho kokusetshenziswa, ngokusho kwe-valve ehlukene zingahlukaniswa:
1. Ukusetshenziswa kokugqekeza: okusetshenziselwa ukufaka noma ukusika i- medium yamapayipi, njenge-valve yeglobhu, i-valve yesango, i-valve yebhola, i-butterfly valve, njll.
2. Hlola: isetshenziselwa ukuvimbela ukubuyela emuva kwemidiya, njengama-valve okuhlola.
Umthetho we-3: usetshenziselwa ukulungisa ingcindezi nokugeleza kwe-medium, njenge-valve yokulawula, i-valve yokunciphisa ingcindezi.
4. Ukusabalalisa: kusetshenziselwa ukushintsha ukugeleza kwe-medium, medium distribution, njengeqhude lezindlela ezintathu, i-valve yokusabalalisa, i-valve yesilayidi, njll.
5 Ivalvu yokuphepha: uma umfutho ophakathi nendawo udlula inani elishiwo, isetshenziselwa ukukhipha okuphakathi okweqile ukuze kuqinisekiswe ukuphepha kwesistimu yamapayipi nezinto zokusebenza, njengevalvu yokuphepha kanye nevalvu yengozi.
6.Okunye ukusetshenziswa okukhethekile: njenge-valve yesicupho, i-valve yokukhipha umoya, i-valve yokuthuthwa kwendle, njll.
7.Four, ngokuya ngemodi yokushayela, ngokuya ngemodi yokushayela ehlukene ingahlukaniswa:
1. Imanuwali: ngosizo lwesondo lesandla, isibambo, i-lever noma i-sprocket, njll., ngokushayela komuntu, shayela i-torque fashion worm gear enkulu, igiya kanye nezinye idivayisi yokunciphisa izinga.
2. Ugesi: oshayelwa yinjini noma esinye isisetshenziswa sikagesi.
3. I-Hydraulic: Ukushayela ngosizo luka (amanzi, amafutha).
4. I-pneumatic: iqhutshwa umoya ocindezelwe.
Ezinhlanu, ngokusho kwengcindezi, ngokusho kwengcindezi ebizwa ngokuthi i-valve ingahlukaniswa:
1. I-Vacuum valve: ukucindezela okuphelele < Amavalvu anobude obungu-0.1mpa, noma 760mm hg, ngokuvamile aboniswa ngekholomu yamanzi ka-mm hg noma mm.
2. I-valve yokucindezela okuphansi: i-valve ye-PN≤ 1.6mpa (okuhlanganisa i-PN≤ 1.6mpa valvu yensimbi)
3. I-valve yokucindezela okuphakathi: i-valve ye-PN2.5-6.4mpa ebizwa ngokuthi ingcindezi.
4. I-valve yokucindezela okuphezulu: i-valve yokucindezela okuzisholo PN10.0-80.0mpa.
5. I-valve yokucindezela okuphezulu okuphezulu: i-valve yokucindezela okuzisholo PN≥ 100.0mpa valve.
Okuyisithupha, ngokusho kwezinga lokushisa le-medium, ngokusho kwe-valve yokusebenza medium lokushisa kungahlukaniswa:
1. I-valve evamile: ilungele izinga lokushisa eliphakathi nendawo -40℃ ~ 425℃ valve.
2. I-valve yokushisa ephezulu: ifanele ukushisa okuphakathi kwe-425 ℃ ~ 600 ℃ valve.
3. I-valve ekwazi ukumelana nokushisa: ilungele izinga lokushisa eliphakathi nendawo elingaphezu kuka-600℃ valvu.
4. I-valve yokushisa ephansi: ifanele ukushisa okuphakathi -150 ℃ ~ -40 ℃ valve.
5. I-valve yokushisa ephansi kakhulu: ifanele izinga lokushisa eliphakathi nendawo elingaphansi kuka -150℃ valve.
Eziyisikhombisa, ngokusho kobubanzi obujwayelekile, ngokusho kobubanzi be-valve zingahlukaniswa:
1. I-valve yobubanzi obuncane: i-diameter encane DN< 40mm valve.
2. I-valve yobubanzi obumaphakathi: i-valve engu-DN50 ~ 300mm.
3. I-valve yobubanzi obukhulu: i-valve engu-DN350 ~ 1200mm.
4. I-valve yobukhulu obukhulu: i-diameter encane DN≥1400mm valve.
Viii.Ingahlukaniswa ngokuya ngemodi yokuxhuma ye-valve nepayipi:
1. I-valve ene-flanged: umzimba we-valve one-flanged, nepayipi eline-valve evulekile.
2. Ivalvu yokuxhuma enemicu: umzimba wevalvu onentambo yangaphakathi noma intambo yangaphandle, i-valve yokuxhuma enentambo enepayipi.
3. I-valve yokuxhuma eshiselwe: umzimba we-valve onama-welds, namapayipi anama-valve ashiselwe.
4. I-valve yokuxhuma i-clamp: umzimba we-valve one-clamp, ne-valve yokuxhuma i-clamp clamp.
5. I-valve yokuxhuma i-sleeve: i-valve ixhunywe nomkhono kanye nepayipi.
Isikhathi sokuthumela: Nov-11-2021