Umhlahlandlela wokufaka ama-valve kanye nendlela yokuxhuma esebenzayo Indlela yokwelapha ukuvuza kwangaphandle kwamavalvu esiteshi samandla

Igayidi yokufaka i-valve kanye nendlela yokuxhuma esebenzayo Indlela yokwelapha ukuvuza kwangaphandle kwama-valve esiteshi samandla Ukushisela okufudumele nokufaka insimbi yesiliva Kubalulekile ukukhumbula ukusetshenziswa kwevalvu okunconyiwe futhi uhlaziye indawo yokufaka isicelo ukuze unqume ukuthi iyiphi i-valve ekufanelekela kangcono ukufakwa. Ngaphambi kokufaka i-valve efanele, funda umhlahlandlela wokufaka ukuvimbela ukulimala ku-valve nokuqinisekisa ukusebenza okugcwele kwe-valve. 1. Sika ipayipi liqonde, nquma futhi ukhiphe ama-burrs, futhi ulinganise ububanzi bepayipi. 2. Gcoba amapayipi nezingxenye zokusika nge-gauze noma ngocingo lwensimbi ukuze wenze ubuso bensimbi bukhanye. I-velvet yensimbi ayinconywa. 3. Faka i-flux ngaphandle kwepayipi nangaphakathi kwekhava yokushisela. I-Flux kumele imboze ngokuphelele indawo yokushisela. Sicela usebenzise i-flux kancane. 4. Qinisekisa ukuthi i-valve ivuliwe. Shisisa ipayipi kuqala. Dlulisa ukushisa okuningi ngangokunokwenzeka kusuka epayipi kuya ku-valve. Gwema isikhathi eside sokushisa kwe-valve ngokwayo. 4A. Indlela ye-Silver brazing: Ukuhlanganiswa kwezingxenye okufanele zenziwe nge-brazed. Uma izingxenye ezimbozwe nge-flux zivunyelwa ukuthi zime ziqonde, umswakama ophuma ku-flux uzohwamuka, futhi ukugeleza okomile kuzoxebuka kalula, kushiye izindawo zensimbi eziveziwe zibe sengozini ye-oxidation. Ekuhlanganiseni kokuxhuma, faka ipayipi ku-casing kuze kube yilapho ihlangabezana nokuvinjelwa. Umhlangano uwukuqinisekisa ukuthi kukhona ukwesekwa okuqinile ukuze kugcinwe isimo esiqondile kulo lonke umsebenzi wokubhula. Qaphela: Kuma-valve angu-1 "noma usayizi omkhulu wokuzisholo, kunzima ukushisisa ukuxhumana nezinga lokushisa elidingekayo ngesikhathi esisodwa. Ukuze ugcine izinga lokushisa elivamile endaweni enkulu, ngokuvamile kudingeka ama-welds amabili. Ukushisa okufanelekile kwayo yonke indawo. Kunconywa indawo ye-acetylene ukushisisa izingxenye ezixhumayo Shisisa ipayipi kusukela ku-intshi engu-1 ukusuka ku-valve, bese uvutha ipayipi phezulu naphansi ngokushintshana ibanga elifushane elizungeze ipayipi, uphendule ipayipi nge-Engeli efanele ukugwema ukuvutha. ngepayipi Ilangabi kufanele liqhubeke njalo futhi lingavunyelwa ukuthi lihlale endaweni eyodwa I-valve Uma i-flux iwuketshezi futhi ishintshashintsha epayipini nevalvu, qala ukubhaka ilangabi liye phambili naphambili eduze kwe-eksisi yelunga ukuze ugcine ilunga lishisa, ikakhulukazi phansi komkhono wevalvu : Uma usebenzisa i-solder yocingo, sebenzisa i-3/4 "solder ye-diameter engu-3/4" ebizwa ngokuthi ama-diameter, njll. Uma i-solder eningi kakhulu, enye ingase igeleze phakathi komgoqo wamapayipi futhi ivale indawo yokuvala. Ama-alloys e-Solder ne-brazing aqhubeka nokugeleza njengoba amalunga efakwe i-5a. Indlela yokubhula ngesiliva: Faka intambo yokudambisa noma induku esokhethi yepayipi kuvalvu. Susa ilangabi entweni noma ecingweni njengoba lingena esihlanganyelwe. Hambisa ilangabi emuva naphambili njengoba ingxubevange igelezela esihlanganyelwe. Lapho izinga lokushisa elilungile lifinyelelwa, i-alloy izogeleza ngokushesha futhi kalula endaweni phakathi kwendlu yepayipi kanye nomkhono we-valve. Lapho ukuhlanganiswa kugcwele, imiphetho ye-alloy ehlanganisiwe ibonakala. 6. Uma i-solder inamathela, susa i-solder ngokweqile ngebhulashi. Lapho i-solder iphola, beka umucu ekupheleni kwevalve. I-brazing yesiliva Amandla okuhlanganiswa kwe-brazing angase angabi mahle uma kusetshenziswa izinto ezihlukene zokubhula, kuye ngokujwayelekile, ukuhlanzwa okubanzi nokugcinwa phakathi kwe-casing kanye nomkhono wevalvu. Ukubekezelelwa kwemishini kanye nokushelela kwendawo yobubanzi bangaphakathi bemikhono yevalve yensimbi ensimbi kuyadingeka ukuze kucace kakhulu ukuze kuqinisekiswe ukunamathela okwanele. Qaphela: Okusele kwendawo yokuhlanza kufanele kubhekwe ngokucophelela ngesikhathi sokuhlanza nangesikhathi senqubo. Ukusoda ezindaweni ezingcoliswe noma ezihlanzwe ngendlela engafanele akwenelisi ngoba ama-alloy ensimbi ensimbi awagelezi phezulu noma abambelele kuma-oxide, futhi izindawo ezinamafutha nezindawo eziveziwe zivamise ukwenza i-oxidize futhi zidale izikhala nemfucumfucu ukuthi kwenqabe ukugeleza. Ukuxhuma okunemicu Ukunqwabelana kwe-slag, ukungcola, nanoma iyiphi into yangaphandle emgqeni wepayipi kungaphazamisa ukusebenza kahle kwevalvu futhi kulimaze kabi izingxenye ezibalulekile zevalvu. Ingaphakathi lepayipi kufanele lihlanzwe kahle ngomoya noma ngesitimu. Lapho uthepha ipayipi, kala usayizi wentambo yepayipi nobude ukuze ugweme ukugcwalisa ipayipi ngesihlalo nediski. Iziphetho zentambo ezihlanzekile zanoma iyiphi insimbi eyingozi noma idiphozithi yensimbi. Uma ufuna i-weld enamandla, sebenzisa i-teflon tape noma i-adhesive yepayipi. Okunamathelisa amapayipi kufanele kusetshenziswe kancane emicu yamapayipi, kodwa hhayi emicu ye-valve. Ungavumeli noma yikuphi okunamathelayo kwepayipi emzimbeni ukuze ugweme ukulimala kwediski nesihlalo. Ngaphambi kokufaka, nqamula ukugeleza kwe-valve ukuze i-valve isebenze kahle. Vala i-valve ngokuphelele ngaphambi kokufakwa. Beka isikrufu phezu kwekhanda le-hex bolt eduze kwepayipi ukugwema ukuhlanekezela okungase kube khona. Ngemuva kokufakwa kwe-valve, umugqa wokusekela: umugqa wokugoqa ungahlanekezela i-valve futhi ubangele ukwehluleka. Ukuxhumana kwe-flange Ukuqinisekisa ukuhlangana okufanele kwentambo ye-valve, landela lezi zinyathelo ezilandelayo. Hlanza ilunga ngokucophelela, bese ufaka ngokukhululekile amabhawodi amabili noma amathathu esisekelweni. Okulandelayo, faka ngokucophelela i-gasket ekuhlanganyeleni. Amabhawodi angezansi asiza ukubeka i-gasket futhi uyibambe isendaweni. Amabhawodi okufaka kufanele abe-cross-screw, hhayi i-loop-screw, ukusiza ukuqeda ukugxilisana okukhulu kokucindezela. Ngemva kwesikhathi sokusetshenziswa okuvamile, hlola futhi uqinisekise ukuthi wonke amabhawodi aqinisiwe futhi aqiniswe kabusha njengoba kudingekile Indlela yokwelapha yokuvuza kwangaphandle kwe-valve yesiteshi samandla 1. Ukuvuza kokupakishwa kwama-valve Isiqu nokupakishwa kuzohamba ndawonye futhi lokhu kuzobonakala ukusetshenziswa kwe-valve. Izikhathi eziningi lapho i-valve ivuleka futhi ivaliwe, ukunyakaza kuzoba ngaphezulu. Ngaphezu kwalokho, umphumela wokushisa, ukucindezela nokunye kuzokwandisa kakhulu amathuba okuvuza kwe-valve yokupakisha, ngalesi sikhathi ukucindezela kokupakisha kuzokwehla kancane kancane, ngaleyo ndlela ukuguga, ukuqina ngeke kusaba khona. Futhi i-pressure medium izophuma kugebe lokuxhumana phakathi kokupakisha kanye nesiqu se-valve. Uma le nkinga ingaxazululeki kahle, ngokuhamba kwesikhathi, i-condiment izoshaywa umoya futhi isiqu se-valve sizohlukaniswa ne-groove, okwenza indawo yokuvuza ibe nkulu futhi ibe nkulu. 2. Ukuvuza kwe-Flange Ukuvuza kwe-Flange kuvame ukubangelwa isici esingaphezu kwesisodwa, njengokuthi ingcindezi yokuvala i-gasket akwanele, ukuqina kwendawo ehlangene kanye nezidingo zebanga elithile, ukuguqulwa kwe-gasket, okuholela ekuvaleni kwe-gasket kanye i-flange ayizange ifinyelele ukuthintana okugcwele futhi igebe, ukuvuza kuzokwenzeka. Ngesikhathi esifanayo, ukubekwa uphawu kwe-flange ebusweni akuqinile ngenxa ye-bolt deformation noma i-elongation, ukuguga kwe-gasket, ukwehla kokuqina, ukuqhekeka, njll, okungase futhi kukhiqize ukuvuza. Ngaphezu kwalokho, izici womuntu nazo ukuvuza flange idinga ukunakwa okukhethekile. Ngaphezu kwalokho, umzimba we-valve ungaphinda ukhiqize izinkinga zokuvuza ngenxa yezinkinga zesikhala, ezingachazwanga lapha. 3. Izindlela zokuphatha ukuvuza kwangaphandle kwama-valve esiteshi samandla Ukupakisha ukuvuza kwegumbi ngokwelashwa kokuxhuma ingcindezi Kunezindlela eziningi zokubhekana nokuvuza kwangaphandle kwama-valve esiteshi samandla, phakathi kwawo ukuphepha kohlobo lomjovo onobuchwepheshe bokufaka ingcindezi kuphakeme kakhulu, okuye kwaba nemiphumela emibi kakhulu. kube yiziphetho ezinemininingwane eyengeziwe. Le ndlela isebenzisa i-fixture ekhethekile kanye namathuluzi omjovo we-hydraulic, i-sealant ijojowe endaweni kanye nengxenye yokuvuza yendawo yangaphandle eyenziwe yi-cavity yokuvala, umphumela wokulungisa ukukhubazeka kokuvuza kungcono, futhi isikhathi esisetshenziswayo sifushane. Lapho ingcindezi yomjovo idlula ingcindezi yendawo yokuvuza, izomisa ngokuqinile ukuvuza, ukuze umjovo ovela emzimbeni wepulasitiki ungene emzimbeni onwebekayo, ngalesi sikhathi isakhiwo sokuvala sibe nokuqina okuthile, futhi kukhona ingcindezi ethile. kophawu olusebenzayo, ukwakheka kokugcina kophawu lwesibili, ngokungangabazeki okwandisa ukusebenza kahle kokuvala. Izinhlobo ezimbili ezilandelayo zama-ejenti womjovo wokuvala zisetshenziswa kakhulu futhi zithuthukiswa eShayina :(1) i-ejenti yomjovo yokuvala ukushisa elapha ukushisa. Ukusetshenziswa kwalo mjovo kudinga ukuhlangabezana nezimo ezithile, okungukuthi, izinga lokushisa, izinga lokushisa lifinyelela izinga elithile lecala, i-ejenti yomjovo ingumzimba onwebekayo, icala elivamile liqinile. (2) i-ejenti yomjovo yokuvala uphawu engashisi. Ububanzi bayo besicelo bukhulu kakhulu, zonke izinhlobo zezimo zokushisa zingasetshenziswa, umjovo we-high pressure ungabuye ufakwe, umjovo nokugcwalisa kungcono, umsebenzi wokushintsha i-valve ungabuye ugcinwe kahle. Lapho ubukhulu bodonga bebhokisi lokupakisha i-valve bungaphezu kuka-8 mm, ukusetshenziswa komjovo wengcindezi yokubhekana nenkinga yokuvuza kungasethwa ngokuqondile emgodini wokupakisha we-valve odongeni lomjovo, umgodi wokuvala yibhokisi lokupakisha i-valve ngokwayo, ukuvala uphawu. umjovo ungadlala indima efanayo nokupakisha. Thola indawo efanele yokuvula imbobo odongeni olungaphandle lwebhokisi lokupakisha i-valve enobubanzi obungu-10.5mm noma 8.7mm. Kubalulekile ukugcizelela ukuthi lo mgodi akufanele ubhojwe, ngebanga lika-1-3 mm. Khipha kancane bese uthepha nge-M12 noma kampompi we-MIO. I-valve kufanele ibe sendaweni evulekile bese kukhethwe intonga ende, engu-3 mm ububanzi, ukuze ibhoboze odongeni olusele lokupakisha ama-valve futhi ukuvuza kuzokhishwa kubheke ebhithi. Ukubhoboza kuzoba nengozi ethile, ikakhulukazi ngenxa yokuthi izinga lokushisa noma ingcindezi inkulu kakhulu noma iqukethe izinto ezinobuthi ezikhishiwe kuzonikeza abasebenzi ukuthi balethe umonakalo othile, ukulimala okuncane, okusindayo nakho kuzosongela ukuphepha kwempilo, ngakho-ke lokhu akukwazi ukushaywa indiva, ngaphambi kwalokho. ukubhoboza nge-baffle kuyindlela engcono yokulawula. Ukuvuza kwe-Flange nge-pressure plugging treatment Containment wire wire Le ndlela isetshenziswa egebeni le-flange elincane, igebe liyiyunifomu, ingcindezi ephakathi kokuvuza iphansi ngokuxhuma i-pressure, i-ejenti yomjovo womjovo wesithunzi esibekwe phezu kwebhawodi esusiwe, ezimbili ziyi- ngaphansi, kufanele kube ngaphezu kokubili. Ijoyinti le-ejenti yenothi lokufaka alilifaki lonke inati liqine, kodwa ukuze lixege futhi lifakwe ngemva kwelunga, bese uqinisa inati ngokushesha, faka i-ejenti yomjovo wejoyinti, lapha akumele kugqanyiswe kuzodinga ukuthi inadi lenyunyana lixege. ngesikhathi esifanayo, ngenxa ye-gasket yokuvala inganciphisa ingcindezi, ukuvuza ukukhuphuka, izimo ezinzima, izinto ezivuzayo zizokhipha ama-gaskets, Uma lokhu kwenzeka, amakhambi anzima ukutholakala futhi umonakalo awunakubalwa. Ukuvuza komzimba wevalvu ngokwelashwa kokuxhuma i-pressure 1. Indlela yokubopha Uma kuyindawo yokucindezela kanye nokuvuza okuncane kwezingxenye zembobo yesihlabathi, ungakwazi kuqala ukupholisha ukucwebezela kwensimbi eduze kwendawo yokuvuza, bese usebenzisa iphinikhodi ye-taper endaweni yokuvuza, ngokufanele. amandla okushayela, ikakhulukazi ukuze kuncishiswe ukuvuza noma ukuxhunywa kwesikhashana. Izinamathiselo zilapha ngokushesha futhi zingasetshenziswa ukumboza iphinikhodi ngezinamatheliso ukuze kwakhiwe uphawu olusha oluqinile olungavimbela ukuvuza ngezinga elithile. Uma umfutho ophakathi nendawo, ukuvuza kukukhulu, kungavala ukusebenza, ngendlela yamathuluzi okucindezela ophahleni, esebenza ohlelweni lokugqekeza olungagudluki ohlangothini olulodwa lwe-valve, isikulufu somfutho ophakeme, senze i-axial pressure yesikulufu esiphezulu iyindawo yokuvuza. , isikulufu sokucindezela esijikelezayo, kusetshenziswa isikulufu se-jacking ekugcineni kwe-rivet ebambe ingcindezi lapho kuvuza, futhi kuyindlela esebenzayo yokumisa ukuvuza. Uma phezulu kwe-rivet kuncane kunendawo yendawo yokuvuza, ishidi lensimbi elithambile lingafakwa ngaphansi kwe-rivet. Lapho ukuvuza kuma, indawo yensimbi ezungeze indawo evuzayo kufanele ihlanzwe ngesikhathi. 2. Indlela yokushisela Uma umzimba ukuvuza kwengcindezi ephakathi iphansi, inani elincane lokuvuza kanye nobubanzi obutholakalayo kunokuvuza okuphindwe kabili kunobukhulu bamantongomane, ukuze sikwazi ukwenza ukuvuza kwemidiya ekuphunyukeni kumantongomane, ukushisela amantongomane emzimbeni we-valve, ngamabhawodi namantongomane okucaciswe okufanayo, beka ucezu lukamata werabha ngaphansi kwentongomane noma umata we-asbestos, izobopha intambo yebhawodi ku-tape engaphezulu eboshwe enathini, Inganciphisa ngempumelelo ukwenzeka yokuvuza. Uma i-valve body ivuza i-medium pressure iphakeme, ukuvuza kukhulu, khona-ke indlela ye-drainage welding iyindlela engcono. Okokuqala ngocezu lwepuleti lensimbi, vula imbobo eyindilinga phakathi nendawo, imbobo eyindilinga enobubanzi bokushisela i-valve yokuhlukanisa emgodini oyindilinga wepuleti lensimbi, vula i-valve yokuhlukanisa, imbobo ye-iron plate emaphakathi eqondaniswe nokuvuza. iphoyinti elifakwe emzimbeni wevalvu, vumela okuphakathi kokuvuza kugeleze kuphume embotsheni yensimbi emaphakathi nevalvu yokuhlukanisa. Ngokuba ebusweni laminating akukuhle, ingasetshenziswa endaweni laminating ibekwe injoloba noma asbestos pad, bese ipuleti yensimbi azungeze valve umzimba Welding, bese uvala i-valve isolation, ukuze umphumela wokuvala ungafinyelelwa futhi kungcono. .