Isikhokelo sofakelo lwevalvu kunye nendlela yoqhagamshelo olusebenzayo Indlela yonyango lokuvuza kwangaphandle kweevalvu zesikhululo samandla

Isikhokelo sofakelo lwevalvu kunye nendlela yoqhagamshelo olusebenzayo Indlela yonyango lokuvuza kwangaphandle kweevalvu zesikhululo samandla Ukuwelda okufudumeleyo kunye nokubrawuza isilivere Kubalulekile ukukhumbula ukusetyenziswa kwevalve ekhuthazwayo kwaye uhlalutye imeko-bume yesicelo ukufumanisa ukuba yeyiphi ivalve eyona ifanele ukufakela. Ngaphambi kokufaka i-valve echanekileyo, funda isikhokelo sokufakela ukukhusela umonakalo kwi-valve kunye nokuqinisekisa ukusebenza ngokupheleleyo kwevalve. 1. Sika umbhobho ngokuthe nkqo, unqumle kwaye ususe i-burrs, kwaye ulinganise ububanzi bombhobho. 2. Gcoba imibhobho kunye neengxenye zokusika nge-gauze okanye ucingo lwensimbi ukuze wenze ubuso besinyithi bukhanye. I-velvet yensimbi ayikhuthazwa. 3. Faka i-flux ngaphandle kombhobho kunye nangaphakathi kwekhava ye-welding. I-Flux kufuneka igubungele ngokupheleleyo i-welding surface. Nceda usebenzise i-flux ngokukhawuleza. 4. Qinisekisa ukuba ivalve ivuliwe. Fudumeza umbhobho kuqala. Dlulisa ubushushu obuninzi ngangokunokwenzeka ukusuka kumbhobho ukuya kwivalve. Gwema ixesha elide lokufudumeza kwevalve ngokwayo. 4A. Indlela yeSilver brazing: INdibano yeengxenye eziza kubhodlozwa. Ukuba iindawo ezigqunywe nge-flux zivumelekile ukuba zime ngokuthe tye, ukufuma kwi-flux kuya kuba ngumphunga, kwaye i-flux eyomileyo iya kukhupha kalula, ishiya iindawo ezicacileyo zetsimbi ezisengozini kwi-oxidation. Kwindibano yokudibanisa, faka umbhobho kwi-casing de idibane nomqobo. INdibano kukuqinisekisa ukuba kukho inkxaso eqinileyo yokugcina indawo ethe tye kulo lonke umsebenzi wokubhobhoza. Qaphela: Kwiivalvu ze-1 "okanye ubungakanani obukhulu begama, kunzima ukufudumeza uxhulumaniso kwiqondo lokushisa elifunekayo lonke ngaxeshanye. Ukuze kugcinwe ubushushu obuqhelekileyo kwindawo enkulu, i-welds ezimbini zivame ukufunwa. Ukufudumeza okufanelekileyo kwayo yonke into indawo ye-acetylene iyacetyiswa ukufudumeza iindawo zokudibanisa Ukutshisa umbhobho ukuqala i-intshi e-1 ukusuka kwi-valve, uze ukhanyise umbhobho phezulu kunye nokunciphisa umgama omfutshane ojikeleze umbhobho, ujike umbhobho kwi-Angle efanelekileyo ukuphepha ukuvutha. ngombhobho Idangatye kufuneka lihambe ngokuqhubekayo kwaye lingavunyelwa ukuba lihlale kwindawo enye Ivalve Xa i-flux ilulwelo kwaye iguquguquka kumbhobho kunye nevalve, qala ukubhaka idangatye emva naphambili kunye ne-axis yejoyinti ukuze ugcine umdibaniso ushushu, ngakumbi kwisiseko somkhono wevalve : Ukuba usebenzisa i-solder yocingo, sebenzisa i-3/4 "i-solder ye-3/4" i-valve ye-diameter, njl. I-Solder kunye ne-alloys ye-brazing iyaqhubeka ihamba njengoko amajoyina afakwe i-5a. Indlela yeSilver brazing: Faka ucingo lwe-solder okanye intonga kwisokethi yombhobho kwivalvu. Susa ilangatye kwintonga okanye ucingo njengoko lingena kwindawo. Hambisa idangatye emva naphambili njengoko i-alloy igeleza kwindawo edibeneyo. Xa ukushisa okufanelekileyo kufikeleleke, i-alloy iya kuhamba ngokukhawuleza kwaye ilula kwisithuba phakathi kwendlu yombhobho kunye nomkhono wevalve. Xa umdibaniso uzaliswe, imida ye-alloy edibeneyo ibonakala. 6. Xa i-solder incangathi, coca i-solder engaphezulu ngebrashi. Xa i-solder ipholile, beka umcu ekupheleni kwevalve. I-Silver brazing Amandla okudibanisa i-brazing angeke alunge ukuba kusetyenziswe izinto ezahlukeneyo zokubhobhoza, kuxhomekeke kwisiqhelo, ukucocwa okubanzi kunye nokugcinwa phakathi kwe-casing kunye ne-valve sleeve. Ukunyamezela komatshini kunye nokugudiswa komphezulu kwedayimitha yangaphakathi yesilivere yebrazed sleeve sleeves kufuneka ukuba ichaneke kakhulu ukuqinisekisa ukunamathela okwaneleyo. Qaphela: Intsalela yendlela yokucoca kufuneka iqwalaselwe ngononophelo ngexesha lokucoca nangexesha lenkqubo. Ukufakwa kwi-Soldering kwindawo engcoliswe okanye ecocwe ngendlela engafanelekanga akwanelisi ngenxa yokuba ii-alloys zesilivere azidluli okanye zinamathela kwii-oxides, kwaye umphezulu onamafutha kunye neendawo eziveziweyo zikholisa ukwenza i-oxidize kwaye ibangele ukuba i-voids kunye ne-debris yale ukugeleza. Ukudibanisa okunemisonto Ukuqokelela kwe-slag, ukungcola, okanye nayiphi na into yangaphandle kumgca wombhobho kunokuphazamisa ukusebenza kwevalve kunye nokonakalisa kakhulu amacandelo abalulekileyo e-valve. Ingaphakathi lombhobho kufuneka licocwe kakuhle ngomoya okanye ngomphunga. Xa ucofa umbhobho, linganisa ubungakanani bentambo yombhobho kunye nobude ukuze ugweme ukuzalisa umbhobho ngesihlalo kunye nediski. Iziphelo zokucoca ngokucokisekileyo kuyo nayiphi na intsimbi eyingozi okanye iidiphozithi zentsimbi. Ukuba ufuna i-weld eyomeleleyo, sebenzisa i-teflon tape okanye i-adhesive yombhobho. Ukuncamatheliswa kombhobho kufuneka kusetyenziswe kancinci kwimisonto yombhobho, kodwa kungabi kwimisonto yevalvu. Musa ukuvumela nayiphi na into encamathelayo yombhobho emzimbeni ukuthintela umonakalo kwidiski kunye nesihlalo. Ngaphambi kofakelo, cima ukuhamba ngevalvu ukuvumela ivalve isebenze kakuhle. Vala ivalve ngokupheleleyo phambi kofakelo. Beka isitshixo phezu kwentloko ye-hex bolt kufuphi nombhobho ukunqanda ukuphazamiseka okunokwenzeka. Emva kokufakwa kwevalve, umgca wenkxaso: umgca we-sagging unokuphazamisa i-valve kwaye ubangele ukungaphumeleli. Ukudibanisa i-flange Ukuqinisekisa ukudibanisa okufanelekileyo kwentambo yevalve, landela la manyathelo alandelayo. Okokuqala ucoce i-joint ngononophelo, uze ufake ngokukhululekileyo iibholiti ezimbini okanye ezintathu kwisiseko. Emva koko, faka ngokucophelela i-gasket kwi-joint. Iibholiti ezisezantsi zinceda ukubeka i-gasket kwaye uyibambe. Iibholithi zokufaka kufuneka emva koko zibe zikrolwe ngokunqamlezileyo, hayi loop-screwed, ukunceda ukuphelisa uxinzelelo olugqithisileyo. Emva kwethuba lokusetyenziswa okuqhelekileyo, khangela kwaye uqinisekise ukuba zonke iibholithi ziqinisiwe kwaye ziphinde ziqiniswe njengoko kuyimfuneko Indlela yoNyango lokuvuza kwangaphandle kwevalvu yesikhululo sombane 1. ukusetyenziswa kwevalve. Amaxesha amaninzi ivalve ivulwa kwaye ivalwe, kokukhona kuya kubakho intshukumo. Ukongezelela, umphumo wokushisa, uxinzelelo kunye nokunye kuya kwandisa kakhulu ukuvuza kwe-valve yokupakisha, ngeli xesha uxinzelelo lokupakisha luya kuncipha ngokuthe ngcembe, ngaloo ndlela ukuguga, ukuqina akusayi kubakho. Kwaye i-pressure medium iya kuphuma kwi-gap yoqhagamshelwano phakathi kokupakisha kunye ne-valve stem. Ukuba le ngxaki ayisonjululwanga ngokufanelekileyo, ngokuhamba kwexesha, i-condiment iya kuvuthelwa kude kwaye isiqu sevalve siya kwahlulwa kumjelo, okwenza umphezulu wokuvuza ube mkhulu kwaye ube mkhulu. 2. Ukuvuza kwe-flange Ukuvuza kwe-Flange kudla ngokubangelwa yimiba engaphezulu kwesinye, njengoxinzelelo lwe-gasket yokutywina akwanelanga, uburhabaxa bomphezulu odibeneyo kunye neemfuno zomgama othile, i-gasket deformation, ekhokelela ekutywineni kunye ne-gasket. I-flange ayizange ifikelele kuqhagamshelwano olupheleleyo kwaye umsantsa, ukuvuza kuya kwenzeka. Kwangaxeshanye, ukutywinwa komphezulu we-flange akungqongqo ngenxa ye-bolt deformation okanye i-elongation, ukuguga kwe-gasket, ukuhla kokuqina, ukuqhekeka, njl., Okunokuvelisa ukuvuza. Ukongeza, izinto zabantu nazo ukuvuza flange kufuna ingqalelo ekhethekileyo. Ukongeza, umzimba wevalvu unokuvelisa iingxaki zokuvuza ngenxa yeengxaki zesithuba, ezingachazwanga apha. 3. Iindlela zokuphatha ukuvuza kwangaphandle kweevalvu zesikhululo samandla Ukupakisha ukuvuza kwegumbi kunye noxinzelelo lwe-plugging unyango Kukho iindlela ezininzi zokujongana nokuvuza kwangaphandle kweevalvu zesikhululo samandla, phakathi kwazo ukhuseleko lohlobo lwenaliti kunye neteknoloji yokuplaga uxinzelelo luphezulu kakhulu, oluye lwabangela ukuba kubekho ukuvuza kwangaphandle. ibe zizigqibo ezineenkcukacha. Le ndlela isebenzisa isixhobo esikhethekileyo kunye nezixhobo zenaliti ye-hydraulic, i-sealant ifakwe kwi-fixture kunye nenxalenye yokuvuza kwendawo yangaphandle eyenziwe ngumgodi wokutywina, umphumo wokulungisa iziphene zokuvuza kungcono, kwaye ixesha elisetyenzisiweyo lifutshane. Xa uxinezeleko lwenaliti ludlula uxinzelelo lwesixhobo sokuvuza, luya kumisa ngamandla ukuvuza, ukuze inaliti evela kumzimba weplastiki ingene kumzimba olastiki, ngeli xesha isakhiwo sokutywina sinokuqina okuthile, kwaye kukho uxinzelelo oluthile. kwetywina elisebenzayo, ukubunjwa kokugqibela kwetywina lesibini, nto leyo ngokungathandabuzekiyo eyandisa ukusebenza kokutywina okulungileyo. Ezi ntlobo zimbini zilandelayo ze-arhente yokutywina inaliti zisetyenziswa kakhulu kwaye zikhuthazwa e-China :(1) ubushushu obunyanga i-arhente yokutywina. Ukusetyenziswa kwale naliti kufuneka kuhlangabezene neemeko ezithile, oko kukuthi, iqondo lobushushu, iqondo lobushushu lifikelela kwinqanaba elithile lemeko, i-ejenti yokutofa ngumzimba olastiki, imeko eqhelekileyo iqinile. (2) i-arhente yokutywinwa kokutywinwa kokunyanga okungashushu. Ubungakanani bayo besicelo bubanzi kakhulu, zonke iintlobo zeemeko zokushisa ziyakwazi ukusebenza, i-injection yoxinzelelo oluphezulu ingafakwa kwakhona, i-injection kunye nokuzaliswa kungcono, umsebenzi wokutshintsha i-valve unokugcinwa kakuhle. Xa ubukhulu bodonga lwebhokisi yokupakisha yevalve bungaphezulu kwe-8 mm, ukusetyenziswa koxinzelelo lwenaliti ukujongana nengxaki yokuvuza kunokusetwa ngokuthe ngqo kwibhokisi yokupakisha yevalve umngxuma wokutofa udonga, umgodi wokutywina yibhokisi yokupakisha ivalve ngokwayo, ukutywina. Isitofu sinokudlala indima efanayo kunye nokupakisha. Fumana indawo efanelekileyo yokuvula umngxuma kudonga lwangaphandle lwebhokisi yokupakisha ivalve kunye nobubanzi be-10.5mm okanye 8.7mm. Kubalulekile ukugxininisa ukuba lo mngxuma akufanele uqhutywe, kunye nomgama we-1-3 mm. Tsala intwana kwaye ucofe ngempompo ye-M12 okanye ye-MIO. Ivalve kufuneka ibe kwindawo evulekileyo kwaye emva koko intonga ende, i-3 mm ububanzi, kufuneka ikhethwe ukubhoboza udonga oluseleyo lokupakisha kunye nokuvuza kuya kukhutshelwa kwicala lebit. Ukugrumba kuya kuba nomngcipheko othile, ikakhulu ngenxa yokuba iqondo lobushushu okanye uxinzelelo likhulu kakhulu okanye iqulethe izinto eziyityhefu ezikhutshiweyo ziya kunika abasebenzi ukuba bazise ingozi ethile, ukulimala okukhanyayo, ubunzima kuya kusongela ukhuseleko lobomi, ngoko ke oku akunakungahoywa. ukubhola nge-baffle yindlela yokulawula engcono. Ukuvuza kwe-flange kunye noxinzelelo lwe-plugging unyango lwe-containment yocingo lwe-copper Le ndlela isebenzayo kwi-gap ezimbini ze-flange zincinci, i-gap ifana, uxinzelelo oluphakathi lokuvuza luphantsi kunye noxinzelelo lwe-plugging, i-agent ye-injection ye-ejenti yesithunzi esidibeneyo esibekwe kwi-bolt esusiwe, ezimbini zi phantsi, kufuneka ibe ngaphezu kwesibini. Ufakelo lwe-arhente yenqaku elidityanisiweyo musa ukulibeka lonke i-nati lijijelwe ngokuqinileyo, kodwa ukukhulula i-a kunye nokufakwa emva kokudityaniswa, emva koko qinisa i-nut ngokukhawuleza, faka i-agent edibeneyo yenaliti, apha ayizukugxininiswa kuya kufuneka i-nut yomanyano ikhululwe. Kwangaxeshanye, ngenxa ye-gasket yokutywina inokunciphisa uxinzelelo, ukwanda kokuvuza, iimeko ezinzima, izinto ezivuzayo ziya kuvuthela i-gaskets, ukuba oku kuyenzeka, amayeza anzima ukufikelela kwaye umonakalo awunakubalwa. Ukuvuza komzimba weValve ngoxinzelelo lokuplaga unyango 1. Indlela yokudibanisa Ukuba yindawo yoxinzelelo kunye nokuvuza okuncinci kweendawo zentlabathi, ungaqala ukupolisha intsimbi ecwebezelayo ejikeleze indawo yokuvuza, kwaye emva koko usebenzise i-taper pin ukuya kwindawo yokuvuza, ngokufanelekileyo. amandla okuqhuba, ikakhulu ukwenzela ukunciphisa ukuvuza okanye ukuplaga okwethutyana. Izinto zokuncamathelisa ziphilisa ngokukhawuleza kwaye zinokusetyenziselwa ukugquma isikhonkwane ngezinto ezincamathelayo ukwenza itywina elitsha eliqinileyo elinokuthintela ukuvuza ukusa kwinqanaba elithile. Ukuba uxinzelelo oluphakathi oluphakathi, ukuvuza kukhulu, kunokutywina ukusebenza, kunye nendlela yezixhobo zoxinzelelo lophahla, esebenza kwinkqubo ye-jacking egxininiswe kwelinye icala levalve, isikrufu soxinzelelo oluphezulu, yenza uxinzelelo lwe-axial ephezulu yindawo yokuvuza. , isikrufu soxinzelelo olujikelezayo, usebenzisa i-jacking screw ekupheleni kwerivet ebambe uxinzelelo ekuvuzeni, ikwayindlela esebenzayo yokumisa ukuvuza. Ukuba umphezulu we-rivet uncinci kunommandla wendawo yokuvuza, ishidi elithambileyo letsimbi lingafakwa phantsi kwe-rivet. Xa ukuvuza kuyeka, indawo yentsimbi ejikeleze indawo yokuvuza kufuneka icocwe ngexesha. 2. Indlela ye-welding Ukuba umzimba ukuvuza koxinzelelo oluphakathi kuphantsi, umlinganiselo omncinci wokuvuza kunye nobubanzi obukhoyo kunokuvuza ngaphezu kokuphindwe kabini kubukhulu be-nut, ukwenzela ukuba senze ukuvuza kweendaba ukubaleka kwi-nut, ukuwelda i-nut kumzimba wevalvu, kunye neebholiti kunye namandongomane okucaciswa okufanayo, beka iqhekeza lemethi yerabha ezantsi kwe nut okanye i-asbestos mat, iya kwenza ibholidi yocingo kwiteyiphu ephezulu ejijelwe kwi nut, Inokunciphisa ngokufanelekileyo ukwenzeka. yokuvuza. Ukuba i-valve yomzimba ivuza uxinzelelo oluphakathi luphezulu, ukuvuza kukhulu, ngoko ke indlela ye-welding ye-drainage yindlela engcono. Okokuqala ngeqhekeza lepleyiti yentsimbi, vula umngxuma ongqukuva embindini, umngxuma ongqukuva kunye nobubanzi bevalve yokwahlula ukuwelda kumngxuma ongqukuva wepleyiti yentsimbi, vula ivalve yokwahlula, umngxuma wentsimbi esembindini ulungelelaniswe nokuvuza. indawo efakwe kumzimba wevalvu, vumela ukuvuza okuphakathi kuphume kumngxunya osembindini wepleyiti yentsimbi kunye nevalve yokwahlula. Kuba umphezulu laminating ayilunganga, ingasetyenziswa kwindawo laminating ibekwe irabha okanye asbestos pad, kwaye ke ipleyiti yentsimbi ngeenxa ukuwelda umzimba ivelufa, uze uvale ivelufa yokwahlula, ukuze isiphumo sokutywina iphunyezwe kwakhona ngcono. .