Kubalulekile ukugcina la manqaku engqondweni xa kuziwa kufakelo lwevalvu.

Kubalulekile ukugcina la manqaku engqondweni xa kuziwa kufakelo lwevalvu. Xa umzimba we-valve uphonswa, ubuso bawo bufanele bube bushelelezi kwaye bugudileyo, ngaphandle kokuqhekeka, izitshixo, i-tracholes, i-pores, i-burrs kunye nezinye iziphene; Xa ubumba ngaphandle kwe-valve umzimba, umphezulu kufuneka ungabikho kwiintanda, i-interlayers, isikhumba esinzima, amabala kunye nezinye iziphene. Uxwebhu lwesatifikethi somgangatho kufuneka lujongwe phambi kokuba kufakwe isivalo. Icwecwe legama lomenzi kufuneka libe kwivalvu, kwaye igama lomenzi, imodeli yevalvu, uxinzelelo lwegama, idiameter yegama kunye nezinye iilebhile kufuneka zibe kwibhodi yegama kunye nevalvu, kwaye kufuneka zihambelane nezibonelelo ze "Logo yeValve Jikelele" GB12220. I-valve kufuneka ihlolwe ngokubonakalayo ngaphambi kokufakwa Xa umzimba we-valve uphonswa, ubuso bawo bufanele bube bushelelezi kwaye bube bushelelezi, ngaphandle kokuqhekeka, izitshixo, i-tracholes, i-pores, i-burrs kunye nezinye iziphene; Xa ubumba ngaphandle kwe-valve umzimba, umphezulu kufuneka ungabikho kwiintanda, i-interlayers, isikhumba esinzima, amabala kunye nezinye iziphene. I. Ukuhlolwa kwamaxwebhu Uxwebhu lwesiqinisekiso somgangatho kufuneka lujongwe phambi kokuba kufakwe isivalo. Icwecwe legama lomenzi kufuneka libe kwivalvu, kwaye igama lomenzi, imodeli yevalvu, uxinzelelo lwegama, idiameter yegama kunye nezinye iilebhile kufuneka zibe kwibhodi yegama kunye nevalvu, kwaye kufuneka zihambelane nezibonelelo ze "Logo yeValve Jikelele" GB12220. Okwesibini, uhlolo lwenkangeleko Ivalve kufuneka ijongwe ngokubonakalayo phambi kofakelo 1. Indawo yokuvula kunye nokuvala kwevalve ngexesha lothutho iyakuhlangabezana nezi mfuno zilandelayo · Iivalvu, iivalvu zeglowubhu, iivalve ze-throttle, iivalve ezilawulayo, iivalve zebhabhathane, iivalve ezisezantsi kunye nezinye iivalvu kufuneka ube kwindawo evalwe ngokupheleleyo Ivalve yeplagi, iindawo zokuvala ivalve yebhola kufuneka zibekwindawo evulekileyo epheleleyo · Ivalve ye-diaphragm kufuneka ibekwindawo evaliweyo kwaye ingavalwa ngokuqinileyo ukunqanda umonakalo kwi-diaphragm · I-disc yevalve yokutshekisha iya kuba ivalwe kwaye ikhuselwe 2, ivalve ayiyi konakaliswa, iindawo ezingekhoyo, ukubola, i-nameplate off kunye nezinye izinto, kunye nomzimba wevalve awuyi kuba mdaka 3. Zombini iziphelo zesivalo kufuneka zikhuselwe. Isibambo okanye ukusebenza kwevili lesandla kufuneka kube bhetyebhetye kwaye kube lula, kungabikho nto ibambekayo 4. Xa umzimba wevalve uphosa, umphezulu wawo kufuneka ube mpuluswa kwaye ugudiswe, ngaphandle kokuqhekeka, imingxuma yezitshixo, i-tracholes, i-pores, i-burrs kunye nezinye iziphene; Xa ubumba ngaphandle kwe-valve umzimba, umphezulu kufuneka ungabikho kwiintanda, i-interlayers, isikhumba esinzima, amabala kunye nezinye iziphene. I-5, i-valve yokukhangela i-disc okanye isenzo se-spool siguquguqukayo kwaye sichanekile, akukho-eccentricity, ukufuduka okanye i-skew phenomenon 6, i-valve yohlobo lwe-spring yokhuseleko kufuneka ibe netywina elikhokelayo, i-valve yokhuseleko yohlobo lwe-lever kufuneka ibe nesixhobo sokubeka isando esinzima 7. Umphezulu wangaphakathi wesixhobo umzimba owenziwe ngerabha, i-enamel kunye neplastiki kufuneka ihambe kakuhle kwaye ilula, i-lining layer ihlanganiswe ngokuqinileyo kunye ne-matrix, kwaye akukho ngqungquthela, i-bubble kunye nezinye iziphene. Umphezulu womaleko we-lining kufuneka uhlolwe ngumbane we-spark generator we-high-frequency, kwaye akukho kuchithwa kwe-line layer (i-flash phenomenon emhlophe) ufanelekile 8, ivalve flange yokutywina umphezulu kufuneka ihlangabezane neemfuno, kwaye akukho mikrwelo yeradial Kubalulekile ukugcina. la manqaku engqondweni malunga nofakelo lwevalvu! (a) indlela yofakelo lwevalvu kunye nendawo yeevalvu ezininzi ezinendlela eya ngakulo, njengevalve yeglowubhu, ivalve yokuthontsiza, ivalve yokunciphisa uxinzelelo, ivalve yokukhangela, njl. njl., ukuba ifakwe umva, iya kuchaphazela ukusetyenziswa kwesiphumo kunye nobomi (ezifana ne ivalve ye-throttle), okanye ingasebenzi nje (njengevalve yokunciphisa uxinzelelo), kwaye inokubangela ingozi (njengevalve yokukhangela). Ivalve ngokubanzi, kukho uphawu lolwalathiso kumzimba wevalvu; Ukuba akunjalo, kufuneka ichongwe ngokuchanekileyo ngokomgaqo wokusebenza kwevalvu. Igumbi levalve elijikeleze ivalve yeglowubhu liyi-asymmetrical, ulwelo lokuyivumela ukusuka ezantsi ukuya phezulu ngezibuko levalve, ngoko ke ukuxhathisa ulwelo kuncinci (kumiselwa yimilo), ukusindisa umsebenzi ovulekileyo (ngenxa yoxinzelelo oluphakathi phezulu) , ivaliwe emva kokupakishwa koxinzelelo oluphakathi, kulula ukuyilungisa, yingakho i-valve yeglobhu ayikwazi ukufaka inyaniso. Ezinye iivalve zineempawu zazo. Ngenisa kunye nekhaya nceda ucofe indawo yokufakela i-valve, kufuneka kube lula ukusebenza: nokuba ukufakwa kunzima okwethutyana, kodwa kunye nomsebenzi wexesha elide lomsebenzisi. I-valve handwheel kunye nokulungelelaniswa kwesifuba (ngokubanzi i-1.2 yeemitha ukusuka kumgangatho wokusebenza), ukwenzela ukuba ukuvulwa nokuvalwa kwevalve kukuncinci. Ivili lesandla sevalve yomgangatho kufuneka lijonge phezulu kwaye lingathambeki ukunqanda ukusebenza kakubi. Ivalve yomatshini wodonga ixhomekeke kwisixhobo, kwaye umqhubi kufuneka naye ashiywe kwindawo yokuma. Ukuze ugweme ukusebenza kwesibhakabhaka, ngakumbi i-asidi kunye ne-alkali, imidiya enetyhefu, ngaphandle koko ayikhuselekile. Isango akufanele liguqulwe (oko kukuthi, i-handwheel iphantsi), ngaphandle koko i-medium iya kugcinwa kwindawo yokugubungela ixesha elide, i-corrode i-stem ngokulula, kunye ne-taboo yenkqubo ethile. Kunzima kakhulu ukutshintsha ukupakisha ngaxeshanye. Vula iivalvu zesango le-STEM, MUSA UKUFAKA ngaphantsi komhlaba, kungenjalo ngenxa yokuhlwa okumanzi kwesiqu esiveziweyo. Phakamisa ivalve yokukhangela, ufakelo lokuqinisekisa ukuba idiskhi yevalve ngokuthe nkqo, ukuze ukuphakamisa kube bhetyebhetye. Ivalve yokukhangela i-Swing, xa ifakwe ukuqinisekisa ukuba inqanaba le-pin, ukuze ujingi ube bhetyebhetye. Ivalve yokunciphisa uxinzelelo iya kufakwa ngokuthe tye kumbhobho othe tye, kwaye ayiyi kuthambekela nakweliphi na icala. (2) Ulwakhiwo lofakelo lofakelo lwe-valve kufuneka lulumke, musa ukubetha izinto ezinqabileyo ezenziwe ngevalve. Ngaphambi kokufaka, i-valve kufuneka ihlolwe ukujonga iinkcukacha kunye neemodeli ukuchonga nawuphi na umonakalo, ngakumbi kwisiqu. Kwakhona ujikeleze amaxesha ambalwa ukuze ubone ukuba i-skewed, kuba ngexesha lokuthutha, i-valve stem kulula ukubetha igoso. Kwakhona *** inkunkuma kwivalve. XA UPHAKAMISA IMVAVANE, INTAMBO AKUFUNEKA IBOTSHWE KWISANDLA OKANYE ISIQINISEKISO UKUTHINTA UKONAKALA KWEZI NDAWO. KUFUNEKA KUBOTSHWE KWIFANGE. Umgca apho i-valve idityaniswe khona kufuneka icocwe. Umoya ocinezelweyo unokusetyenziselwa ukuvuthela iifayili ze-iron oxide, isanti, i-welding slag kunye nezinye ii-sundries. Le nkunkuma, akukho lula nje ukukrazula indawo yokutywina yevalve, amaqhekeza amakhulu enkunkuma (njenge-slag ye-welding), kodwa inokuthintela i-valve encinci, ukwenzela ukuba ukusilela kwayo. Xa UFAKA I-SKREW valve, UKUPAKA UKUTYA (I-WIRE NE-aluminium yeoli OKANYE i-PTFE RAW belt material) kufuneka ifakwe kwintambo yombhobho, ungangeni kwi-valve, ukwenzela ukuba ugweme umthamo wememori yevalve, uchaphazele ukuhamba okuphakathi. Xa ufaka i-valve ye-flange, nikela ingqalelo ekuqiniseni iibholithi ngokulinganayo kwaye ngokulinganayo. I-valve flange kunye ne-flange yombhobho kufuneka ihambelane, ukucocwa kunengqiqo, hleze i-valve ivelise uxinzelelo olugqithisileyo, kunye nokuqhekeka. Kwizinto ezinqabileyo kwaye kungekhona amandla aphezulu e-valve, ingqalelo ekhethekileyo kufuneka ihlawulwe. Ivalve ekufuneka idityaniswe ngombhobho iya kuba yindawo edityanisiweyo kuqala, emva koko indawo evaliweyo iya kuvuleka ngokupheleleyo, ize idityaniswe ifile. (3) Amanyathelo okukhusela ivalvu ezinye iivalvu kufuneka zibe nokhuseleko lwangaphandle, oko kukugcina ubushushu kunye nokugcinwa kwengqele. I-insulation layer ngamanye amaxesha ixutywa nemigca yomphunga oshushu. Luluphi uhlobo lwevalve olufanele lube lubushushu okanye lubandayo, ngokweemfuno zemveliso. Ngokomgaqo, apho i-valve medium ukunciphisa iqondo lobushushu kakhulu, kuya kuchaphazela ukusebenza kakuhle imveliso okanye ivalve emkhenkceni, kufuneka uhlale ushushu, nkqu ubushushu mix; Apho ivalve ingenanto, engalunganga kwimveliso okanye ibangele iqabaka kunye nezinye izinto ezimbi, kufuneka uhlale ubanda. Izinto zokugquma i-asbestos, uboya be-slag, uboya beglasi, i-perlite, i-diatomite, i-vermiculite, njl.; Izinto zokupholisa ziyi-cork, i-perlite, i-foam, iplastiki kunye nokunye. (4) I-Bypass kunye nesixhobo ezinye iivalve, ngaphezu kwezibonelelo eziyimfuneko zokukhusela, kodwa nazo zine-bypass kunye nesixhobo. Kufakwe i-bypass. Kulula ukulungisa umgibe. Ezinye iivalve, nazo zifakwe i-bypass. Ukufakwa kwe-bypass kuxhomekeke kwimeko yevalvu, ukubaluleka, kunye neemfuno zemveliso. (esihlanu) ukupakisha ukubuyisela ivalve yesitokhwe, ukupakishwa okuthile khange kube kuhle, kwaye okunye akuhambelani nokusetyenziswa kwesixhobo esiphakathi, esifuna ukubuyisela ukupakisha. Umzi-mveliso weValve awukwazi ukuqwalasela ukusetyenziswa kwamawaka eentlobo ezahlukeneyo zeendaba, ibhokisi yokupakisha isoloko igcwele ingcambu eqhelekileyo, kodwa xa isetyenziswa, kufuneka ivumele ukupakisha phakathi ukulungelelanisa. Xa utshintsha ukupakisha, cinezela ngqukuva. Umthungo ngamnye wendandatho ukuya kuma-degrees angama-45 ufanelekile, ring kunye ne-ring uvule i-180 degrees. Ukuphakama kokupakisha kufuneka kuthathelwe ingqalelo i-leeway ukuze i-gland iqhubeke nokucinezela, kwaye ngoku kuyafuneka ukuba indawo esezantsi ye-gland icinezele igumbi lokupakisha kubunzulu obufanelekileyo, obunokuthi ngokubanzi bube yi-10-20% yobunzulu bubonke bobunzulu. igumbi lokupakisha. Kwiivalve ezifunayo, i-joint Angle yi-30 degrees. Umthungo ophakathi kweringi kunye neringi ugxadazele ngamadigri angama-120. Ukongeza ukupakisha, kodwa ngokwemeko ethile, ukusetyenziswa kwerabha O-ring (irabha yendalo ukumelana 60 degrees Celsius buthathaka alkali, butadiene irabha ukumelana ukuya 80 degrees Celsius ikristale oyile, Fluorine irabha ukumelana ezahlukeneyo ezonakalisayo. media ngezantsi 150 degrees celcius) ezintathu zipakishwe polytetrafluoron ring (ixhathise eendaba eyomeleleyo edlekayo ngaphantsi kwama-200 degrees Celsius) nenayiloni isitya umsesane (resistant ukuya 120 degrees Celsius ammonia, alkali) kunye nezinye ezenza filler. Umaleko we-TEflon we-tape yezinto eziluhlaza unokuphucula umphumo wokutywina kunye nokunciphisa ukubola kwe-electrochemical ye-valve stem. Xa ucinezela i-seasoning, jika i-stem ngaxeshanye ukugcina yonke indawo ngokulinganayo, kwaye uthintele ukufa kakhulu, qinisa i-gland ukuze unyanzelise ngokulinganayo, awukwazi ukuthambeka.