Ukusethwa kwe-valve okuyisisekelo kuza ngokushesha nelogo ye-valve yokuqoqa nopende wokuhlonza

Ukusethwa kwe-valve okuyisisekelo kuza ngokushesha nelogo ye-valve yomqoqi nopende wokuhlonza Ukusethwa kwe-valve nokukhetha uhlobo olufanele (hhayi imodeli). Amavalvu ayingxenye ebalulekile yomsebenzi wochwepheshe besistimu yenqubo lapho belungiselela imidwebo ye-PI. Okuqukethwe okuchazwe kulo mthethonqubo kucabangela izidingo ezijwayelekile zokukhiqiza nokuphepha. Lapho enza idizayini yobunjiniyela ngokubhekisela kule mithetho, uchwepheshe wesistimu uzokhetha ngokusekelwe esimweni esithile sephrojekthi, izimo zezulu zendawo, ukubambisana kwamafekthri, izidingo zokusebenza kwedivayisi, izici zoketshezi, izidingo ezikhethekile zabasebenzisi nomnotho, njll. . Lo mthetho futhi wethula izici zamavalvu ezimboni ezijwayelekile kanye nezici okufanele zicatshangelwe ekukhetheni ama-valve ekwakhiweni kobunjiniyela 1. Izinhlinzeko zisebenza kumamajo esistimu yenqubo yamakhemikhali. I-valve okukhulunywe ngayo ayibandakanyi i-valve yokuphepha, i-steam trap, i-valve yokusampula kanye ne-valve yokunciphisa umfutho, kodwa ihlanganisa i-orifite plate ekhawulela ukugeleza, ipuleti eliyimpumputhe nokunye okufakwe amapayipi asebenza ngendlela efanayo ne-valve, ne-valve enqamukile njengejwayelekile. igama lalezi zingxenye zevalvu. Umsebenzi we-valve yokusika usetshenziselwa ukusika uketshezi noma ukwenza uketshezi lushintshe isiqondiso sokugeleza, ngokusho kokukhiqizwa (okuhlanganisa ukukhiqizwa okuvamile, ukuvula nokuvala kanye nezimo ezikhethekile zokusebenza), izidingo zokugcinwa nokuphepha kanye nezilungiselelo, kodwa futhi kubhekwe ukuba nengqondo komnotho. Ukusethwa kwevalvu nokukhetha uhlobo olufanele (hhayi imodeli). Amavalvu ayingxenye ebalulekile yomsebenzi wochwepheshe besistimu yenqubo lapho belungiselela imidwebo ye-PI. Okuqukethwe okuchazwe kulo mthethonqubo kucabangela izidingo ezijwayelekile zokukhiqiza nokuphepha. Lapho enza idizayini yobunjiniyela ngokubhekisela kule mithetho, uchwepheshe wesistimu uzokhetha ngokusekelwe esimweni esithile sephrojekthi, izimo zezulu zendawo, ukubambisana kwamafekthri, izidingo zokusebenza kwedivayisi, izici zoketshezi, izidingo ezikhethekile zabasebenzisi nomnotho, njll. . Lo mthethonqubo wethula ngokugcwele nangokujwayelekile ukumiswa kwamavalvu ezimweni ezisohlwini kanye nezidingo ezinemininingwane yamayunithi ahlukahlukene amakhemikhali. Bona imodi yeyunithi eyisisekelo yomdwebo we-PI weyunithi ehambisanayo. Lo mthethonqubo wethula futhi izici zamavalvu ezimboni ezijwayelekile kanye nezici okufanele zicatshangelwe ekukhetheni ama-valve ekwakhiweni kobunjiniyela. 2. I-Valve yokumisa i-Valve isethwe emngceleni Impahla yenqubo kanye namapayipi ezinto ezivamile azosikwa emngceleni wesitshalo (imvamisa ngaphakathi kwendawo yomngcele wesitshalo) Ukuphuka kwevalvu, ngaphandle kwalezi zimo ezilandelayo: (1) Isistimu yokukhipha umoya. (2) ipayipi elikhiphayo lapho ipayipi lokulahla izimo eziphuthumayo lingaphandle komngcele; Uma ama-valve kufanele asethwe kulezi zimo ezimbili, ukuvala uphawu komthofu kuyadingeka ukuze uvule (CSO) (3) ipayipi lempahla elingeke libangele izintambo nezingozi. (4) Ithubhu yezinto ezibonakalayo ngaphandle kokulinganisa. I-FIG. 2.0.1 Ukusethwa kwamavalvu emngceleni Amavalvu emngceleni asethwe ngezindlela eziningana njengoba kukhonjisiwe kuMfanekiso 2.0.1. Lapho (1) kusebenza ezintweni ezijwayelekile Sika; Esimeni sezingozi zokuphepha ezifana nomlilo noma izingozi ezibalulekile zekhwalithi yomkhiqizo ezibangelwa izintambo ezibonakalayo, amapuleti angaboni kufanele engezwe ku-FIG. 2.0.1 ukuvimbela ukuvuza kwangaphakathi kwevalvu. (3) kanye (5) ku-FIG. 2.0.1 zilungele ukushanela umugqa okhuphuka nomfula noma owehla nomfula ngemva kokuphakelwa. I-Valve A ingase isetshenziselwe ukuhlanza, ukuhlanza, ukubona ukuvuza, noma imitha yokuhlola ingafakwa phakathi kwamavalvu amabili ochungechungeni. (5) Emfanekisweni 2.0.1 uyasebenza lapho izinguquko zengcindezi zingaba nkulu futhi ivalvu yokuhlola isebenza njengokunqanyulwa ngaso leso sikhathi. Ukusethwa kwe-valve yezimpande Lapho into esetshenziswayo idinga ukuhanjiswa iye kubasebenzisi abangaphezu koyedwa, ukuze kube lula ukugcinwa noma ukonga amandla, ukulwa nokuqandisa, ngaphezu kwalokho okunamathiselwe Ngaphezu kwe-valve yokuvala, i-valve enqamukile. ebizwa ngokuthi i-root valve ifakwe epayipini legatsha eduze kwepayipi elikhulu. Okuvame ukusetshenziswa ezinhlelweni zezinto ezibonakalayo (isb. umusi, umoya ocindezelweyo, initrogen, njll.). Kudingeka ukulungiselelwa okufanayo lapho umsebenzi wenqubo usetshenziswa kubasebenzisi abaningi (isb. izincibilikisi). Ivalvu ekhonjiswe kuMfanekiso 2.0.2 iyivalvu yempande. Ezimfuneko ze-antifreeze ezonga amandla, ibanga phakathi kwe-valve yezimpande kanye nomphathi kufanele libe lincane ngangokunokwenzeka. Umfanekiso 2.0.2 Umdwebo oyisikimu wevalvu yezimpande Amavalvu ezimpande kufanele afakwe kuwo wonke amapayipi egatsha amapayipi ezinto ezivamile endaweni yamakhemikhali ukuze kugwenywe ukulimala okungama-valve okubangela ukuvala kwezitshalo noma kwezitshalo. Amapayipi amanzi anesitimu nangaphezulu, ngisho nasesitshalweni esisodwa noma emshinini owodwa, lapho ipayipi legatsha lidlula ubude obuthile, kudingeka futhi lengeze i-valve yezimpande ukunciphisa indawo efile, ukunciphisa ukusetshenziswa kwamandla, ukuvimbela ukuqhwa. Izinto ezimbili noma ngaphezulu ezisizayo ze-steam kufanele zinqunywe ngokuvumelana nokubaluleka kokukhiqizwa kwe-valve yezimpande zepayipi legatsha. I-valve yempande yepayipi legatsha lezinto ezivamile isethwe uchwepheshe wepayipi ekwakhiweni kwesakhiwo sepayipi, futhi uchwepheshe wesistimu yenqubo udinga ukuhlola ukuthi igatsha lifanelekile yini. Futhi i-valve yezimpande imelelwa kumdwebo we-PI wempahla yomphakathi (umdwebo wokusabalalisa). I-valve ephindwe kabili Igesi ye-petroleum ewuketshezi, uketshezi oluvuthayo, olunobuthi noluyigugu nokunye okugqwala kakhulu, okufana ne-asidi eqinile, i-caustic soda futhi kunezidingo ezikhethekile (ezifana nendawo enukayo ebangele ukungcoliswa okukhulu kwemvelo) ithangi eliphakathi nendawo, kanye nomugqa ongezansi. kwamanye amadivaysi, akunandaba ukuthi eduze kwezinye izinto zevalvu kanye namavalvu amabili kufanele afakwe ochungechungeni (i-valve ephindwe kabili), Enye yazo kufanele ibambene nezimbobo zethangi. Uma umthamo wethangi lokugcina mkhulu noma ukude, i-valve iyi-valve yesilawuli kude esingcono. Ukuze unciphise inani lama-valve, hlanganisa amapayipi amaningana endaweni eyodwa njengoba kukhonjisiwe ku-FIG. 2.0.3--1 uma ukusebenza kuvuma. I-valve yokukhipha amanzi yesitsha esiqukethe imidiya eshiwo ngenhla nayo izoba yi-valve ephindwe kabili, njengoba kukhonjisiwe kuMfanekiso 2.0.3-1. I-JB/T 106-2004: usayizi wegama (DN), ikhodi yokucindezela noma ikhodi yokucindezela okusebenzayo, uphawu lwezinto ezibonakalayo noma ikhodi, igama lomkhiqizi noma uphawu lokuhweba, inombolo yesithando somlilo (i-valve yokusakaza) izomakwa isikhathi eside phezu komzimba we-valve yengcindezi ku-GB/T 12220-1989. Amavalvu anezidingo zesiqondiso sokugeleza kufanele amakwe ngomcibisholo wokugeleza omaphakathi. Eyodwa, iphrojekthi yelogo yevalvu ejwayelekile Ngokusho kwe-GB/T 12220 "I-General Valve Mark", ivalvu evamile kufanele isetshenziswe futhi ukusetshenziswa kwezinto zophawu ngokuzikhethela kungokulandelayo: uphawu lwephrojekthi uphawu lwephrojekthi 1 Usayizi wegama (DN) 11 Inombolo evamile. 2 Ingcindezi yamagama (PN) 12 Inombolo yokushisa 3 Ikhodi yezinto ezibonakalayo ezingxenyeni ezicindezelwe 13 Ikhodi yempahla yangaphakathi 4 Igama noma uphawu lokuthengisa lomkhiqizi 14 Indawo, 5 Umcibisholo ogeleza omaphakathi 15 Ikhodi yezinto zolwelwesi 6 Indandatho yophawu (gasket) ikhodi 16 Ikhwalithi nokumaka ukuhlolwa 7 Izinga lokushisa elilinganiselwe 17 Uphawu lomhloli 8 Ikhodi yochungechunge 18 Unyaka wokukhiqiza, inyanga 9 Ukucindezela okukhulu 19 Izici zokugeleza 10 Ifektri No. ikhodi, uhlobo lwempahla noma ikhodi, igama lomkhiqizi noma uphawu lokuhweba, inombolo yesithando somlilo (i-valve yokusakazwa) izomakwa ebusweni bomzimba wevalvu yokucindezela ngokuya nge-GB/T 12220-1989. Amavalvu anezidingo zesiqondiso sokugeleza kufanele amakwe ngomcibisholo wokugeleza omaphakathi. 2. Izindlela zokumaka GB/T 12220-1989: amavalvu anosayizi wegama omkhulu noma olingana ne-DN50 kufanele amakwe ngosayizi wegama (DN), ukucindezela okuzisholo (PN), umugqa wempahla noma inombolo yekhodi yezingxenye ezicindezelwe, igama lomkhiqizi noma uphawu lokuhweba. , inombolo yesithando somlilo esincibilikayo (i-casting) izomakwa emzimbeni wevalvu. Kumavalvu anosayizi omncane ongaphansi kwe-DN50, amamaki amane angenhla azomakwa emzimbeni wamavalvu noma kucwecwe legama njengoba kucaciswe umklami. Lapho ukucindezela okulinganiselwe kophawu lokuphonsa lomzimba we-valve kusethwe ngaphansi kwenani lesayizi elivamile, ingcindezi yamagama akumele ifakwe kuqala ngekhodi ethi "PN". I-GB/T 12220-1989 icacisa umcibisholo ogeleza ophakathi nendawo, ikhodi yeringi (iphedi) kuphela uma icaciswe ezingeni elithile lamavalvu kufanele imakwe emzimbeni wevalvu kanye ne-flange ngokulandelanayo. Uma kungekho ukunikezwa okukhethekile ku-GB/T 12220-1989, izinto 7 -- 19 kuthebula elingenhla ziyizimpawu ozikhethela ukuthi zisetshenziswe uma kudingeka. Maka emzimbeni we-valve noma ku-nameplate njengoba kudingeka. I-GB/T 12220-1989 ihlinzeka ngokuthi uma usayizi wesondo lesandla mkhulu ngokwanele, isondo lesandla kufanele linikezwe umcibisholo obonisa isiqondiso sokuvala kwevalvu noma umbhalo "ovaliwe". I-JB/T 106-2004: umzimba we-valve ngokuphonsa noma indlela yokufa, uphawu lwawo kufanele luphonswe noma lufafazwe emzimbeni wevalvu ngesikhathi esifanayo. Lapho umumo womzimba nge-die forging method, i-logo yayo ngaphezu komzimba ngesikhathi esifanayo i-forging noma i-die casting, ingabuye imakwe emzimbeni nge-embossing indlela. Lapho umumo womzimba we-valve ucutshungulwa ngokwakhiwa, ipayipi lensimbi noma i-steel plate rolling welding ukwakha, i-logo yayo ngaphezu kokwakhiwa kwe-embossing indlela, kodwa futhi ingasetshenziswa ngezinye izindlela ezingaphazamisi ukusebenza komzimba we-valve. . Maka isikhundla kanye nosayizi wophawu LJB /T 106-2004 regulation: ukumaka okuqukethwe, kufanele kumakwe emzimbeni wezingxenye okulula ukuzibona. Izimpawu zizokhonjiswa ngangokunokwenzeka endaweni emaphakathi yomugqa omaphakathi womzimba we-perpendicular.