Iivalve yesangosisivalufa esiqheleke ngokubanzi esinoluhlu olubanzi losetyenziso. Isetyenziswa ikakhulu kulondolozo lwamanzi, isinyithi kunye namanye amashishini. Ukusetyenziswa kwayo ngokubanzi kuye kwaqatshelwazihlelwe yimarike. Kwiminyaka emininzi yomgangatho kunye nokujongwa kwezobugcisa kunye nokuvavanya, umbhali akenzanga kuphela uphando oluthile malunga nokuchongwa kwevalve yesango, kodwa kunye nokusetyenziswa kwevalve yesango, ndenze uphando oluthe kratya kunye nolucokisekileyo.
Oku kulandelayo yingxoxo ngokubanzi malunga nesakhiwo, ukusetyenziswa, ukuxazulula iingxaki, ukuhlolwa komgangatho kunye neminye imiba yevalve yesango.
Isakhiwo
Ubume beivalve yesango: Iivalve yesangoyiivalveesebenzisa ipleyiti yesango kunye nesitulo sevalve ukulawula ukuvuleka nokuvala. Iivalve yesangoubukhulu becala iqulathe umzimba wevalvu, isihlalo sevalvu, ipleyiti yesango, isiqu sevalve, isigqubuthelo sevalvu, ileta yokupakisha, isigqubuthelo soxinzelelo, isikhondo sevalve, isandla-ivili, njl Ngokuxhomekeke kutshintsho lwendawo ehambelanayo phakathi kwesango kunye nesihlalo sevalve, ubungakanani betshaneli bunokutshintshwa kwaye umjelo unokunqunyulwa. Ukuze uvale ivalve yesango ngokuqinileyo, ipleyiti yesango kunye nesihlalo sevalve ziphantsi.
Ngokwemilo eyahlukileyo yesakhiwo sevalve yesango, i-valve yesango inokwahlulwa ibe ngamacandelo amabini: i-wedge kunye ne-parallel.
Ipleyiti yesango yevalve yesango ye-wedge ikwimo, kwaye indawo yokutywina ithambekele kumgca ophakathi womzila. Umjikelo ophakathi kwepleyiti yesango kunye nesitulo sevalvu usetyenziselwa ukutywina (ukuvala). I-wedge plate ingaba yisango elilodwa okanye isango eliphindwe kabini.
Umphezulu wokutywina we-valve yesango elihambelanayo lihambelana nomnye kunye ne-perpendicular kumgca ophakathi womzila. Yahlulwe yaba ziindidi ezimbini: isixhobo esivulekileyo kunye nesixhobo esingavuliyo. Kukho isango eliphindwe kabini elinomatshini ovulekileyo. Xa isango lisihla, amacangci amasango amabini anxuseneyo axhasa amasango amabini akwisihlalo sevalvu kwindawo ethambekileyo aze anqumle umjelo wokuhamba. Xa isango liphakama kwaye livula, ifosholo kunye nesango zisebenzisana nesango ziyahlukana, isango liphakama ukuya kumphakamo othile, kwaye i-wedge ibanjwe yi-con Iplate yesango eliphindwe kabini ngaphandle kwendlela evulekileyo. Xa ipleyiti yesango ityibilika kwisitulo sevalve ecaleni kwemiphezulu yesitulo sevalve enxuseneyo, uxinzelelo lolwelo lusetyenziselwa ukucinezela ipleyiti yesango kumzimba wevalvu kwicala lokuphuma kwevalvu ukutywina ulwelo.
Ngokweentshukumo ezahlukeneyo zesiqu sevalve xa isango livulwa kwaye livaliwe, ivalve yesango yahlulwe yangamacandelo amabini: ivalve yesango evulekileyo kunye nevalve yesango elimnyama. Xa i-valve stem kunye ne-plate yesango ye-valve ye-open-bar yesango ivuliwe okanye ivaliwe, ziphakama kwaye ziwe ngaxeshanye; xa ivalve yesango elimnyama ivuliwe okanye ivaliwe, isiqu sevalve sijikeleziswa kuphela, ukunyuka nokuwa kwe-valve stem akubonakali, kwaye ipleyiti yevalve iphakanyisiwe okanye ithotywe. Inzuzo yevalve yesango evulekileyo kukuba inokugweba ubude bokuvulwa komjelo ngokunyuka kobude besiqu sevalve, kodwa inokunciphisa ubude bobunini. Xa ujongene nesandla-ivili okanye umqheba, jika isandla-ivili okanye umqheba ngasekunene, kwaye ivalve ivaliwe.
Isiganeko kunye nomgaqo wokhetho wokusetyenziswa kwevalve yesango yesibini:
01 iflethiivalve yesango
Ukusetyenziswa kwevalve yesango elisicaba:
(1) Imibhobho yokuhambisa i-oyile nerhasi yendalo, iivalvu zesango ezisicaba ezinemingxuma yokuphambuka nazo zikulungele ukucoca imibhobho.
(2) Imibhobho yokuhambisa kunye nezixhobo zokugcina ioli esulungekileyo.
(3) Izixhobo zezibuko zokutsalwa kwe-oyile nerhasi yendalo.
(4) Imibhobho ene-particle media media.
(5) Umbhobho wokuhanjiswa kwerhasi ezidolophini.
(6) Iprojekthi yokubonelela ngamanzi.
Umgaqo-siseko wokhetho lwevalve yesango elisicaba:
(1) Kwimibhobho yokuhambisa ioyile nerhasi yendalo, khetha iivalvu zesango ezisicaba ezinamasango elinye okanye amasango amabini. Ukuba ufuna ukucoca umbhobho, khetha ivalve yesango elisicaba elinesango elinye elinomngxuma wokuphambukela.
(2) Kumbhobho wothumelo kunye nezixhobo zokugcina i-oyile esulungekisiweyo, khetha isango elinye elingenamngxuma wokuphambukela okanye ivalve yesango elisicaba elinesango eliphindwe kabini.
(3) Kwizixhobo zezibuko zokutsalwa kwe-oyile nerhasi yendalo, khetha isango elinye elinesitulo sevalvu edadayo enomngxuma wokuphambuka okanye ivalve yesango elisicaba elinesango eliphindwe kabini.
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(5) Kwimibhobho yothumelo lwerhasi ezidolophini, khetha isango elinye okanye isango eliphindwe kabini elithambileyo elitywiniweyo elivula intonga yesango elisicaba.
(6) Kubunjineli bonikezelo lwamanzi, khetha ipleyiti yesango enye okanye ipleyiti yesango ephindwe kabini ngaphandle komngxuma ovulekileyo intonga yesango elisicaba.
02 wedgeivalve yesango
Izihlandlo ezisebenzayo zevalve yesango le-wedge: Phakathi kweentlobo ezahlukeneyo zeevalve, ivalve yesango isetyenziswa ngokubanzi. Ngokuqhelekileyo ifanelekile kuphela ukuvulwa ngokupheleleyo okanye ukuvala ngokupheleleyo, kwaye ayikwazi ukusetyenziselwa ukulawulwa kunye nokubetha.
Ivalve yesango le-wedge isetyenziswa ngokubanzi kwiindawo apho kungekho mfuneko engqongqo yobungakanani bangaphandle bevalve, kwaye iimeko zokusetyenziswa zinobunzima. Ngokomzekelo, kwi-high-high-temperature kunye ne-high-pressure medium medium, kuyimfuneko ukuba iindawo ezivaliweyo kufuneka zitywinwe ixesha elide.
Ngokubanzi, xa iimeko zokusetyenziswa okanye iimfuno zokusebenza okuthembekileyo kokutywinwa, uxinzelelo oluphezulu, ukunqunyulwa koxinzelelo oluphezulu (umahluko omkhulu woxinzelelo), ukunqunyulwa koxinzelelo oluphantsi (umahluko omncinci woxinzelelo), ingxolo ephantsi, umngxuma womoya kunye nesenzeko somoya, ubushushu obuphakathi. , ukushisa okuphantsi (ukubanda okunzulu), kucetyiswa ukuba usebenzise i-valve ye-puncture gate. Ngokomzekelo, kukho izicelo ezininzi kwishishini lamandla, ukunyibilikisa i-petroleum, i-petrochemical, i-oyile engaselunxwemeni, ubunjineli bamanzi kunye nobunjineli bokucoca ugutyulo kulwakhiwo lwasezidolophini, kunye neshishini lemichiza.
Umgaqo wokhetho:
(1) Iimfuno zeempawu zolwelo lwevalve. Ivalve yesango isetyenziselwa iimeko zokusebenza ezinokumelana nokuhamba okuncinci, ukukwazi ukujikeleza okunamandla, iimpawu zokuhamba kakuhle kunye neemfuno ezingqongqo zokutywinwa.
(2) Ubushushu obuphezulu kunye noxinzelelo oluphezulu. Njengoxinzelelo oluphezulu lwe-steam, ubushushu obuphezulu kunye neemveliso zeoyile ezinoxinzelelo oluphezulu.
(3) Ubushushu obuphantsi (ukubanda kakhulu) okuphakathi. Njenge-ammonia elulwelo, i-hydrogen engamanzi, ioksijini engamanzi kunye nezinye imidiya.
(4) Uxinzelelo oluphantsi kunye nobukhuluubukhulu. Ezinje ngeeprojekthi zamanzi akwiimpompo kunye neeprojekthi zokucoca ugutyulo.
(5) Isikhundla sokufakela: khetha ivalve yesango elimnyama xa umphakamo wofakelo ulinganiselwe; khetha ivalve yesango intonga evulekileyo xa ukuphakama kungakhawulelwanga.
(6) Kuphela xa inokuvulwa ngokupheleleyo okanye ivalwe ngokupheleleyo, kwaye ayinakusetyenziselwa ukulungiswa kunye nokubetha, i-valve yesango lokubhoboza ingakhethwa.
Iimpazamo ezintathu eziqhelekileyo kunye nokugcinwa
01 Iimpazamo eziqhelekileyo kunye nezizathu zeevalvu zesango
Emva kokusetyenziswa kwevalve yesango, ezi ngxaki zilandelayo zivame ukuvela ngenxa yeqondo lokushisa, uxinzelelo, ukubola kunye nokunyakaza okuhambelana noqhagamshelwano ngalunye.
(1) Ukuvuza: Kukho iindidi ezimbini, ezizezi, ukuvuza kwangaphandle kunye nokuvuza kwangaphakathi. Ukuvuza ngaphandle kwevalve kubizwa ngokuba kukuvuza, kwaye ukuvuza kuqhelekile kwibhokisi yokupakisha kunye noqhagamshelo lweflange.
Izizathu zokuvuza kwebhokisi yokupakisha: iindidi okanye umgangatho wokupakisha awuhambisani neemfuno; ukuguga kokupakisha okanye ukuguga kwe-valve stem; ukukhulula idlala lokupakisha; ukukrwela kumphezulu wesikhondo sevalvu.
Izizathu zokuvuza kwi-flange uxhumano: izinto eziphathekayo okanye ubukhulu be-gasket abuhambisani neemfuno; umgangatho wokulungiswa kwendawo yokutywina ye-flange imbi; iibholiti zoqhagamshelo zibotshelelwe ngokungafanelekanga; uqwalaselo lombhobho alunangqiqo, lubangela imithwalo eyongezelelweyo egqithisileyo kumdibaniso.
Izizathu zokuvuza kwangaphakathi kwevalve: Ukuvuza okubangelwa ukuvalwa kwe-valve kukuvuza kwangaphakathi, okubangelwa umonakalo kwindawo yokutywina yevalve okanye ingcambu ye-lax yeringi yokutywina.
(1) Umhlwa udla ngokuba kukudleka komzimba wevalvu, isigqubuthelo sevalvu, isiqu sevalve kunye nomphezulu wokutywina weflange. I-Corrosion ibangelwa kakhulu kwisenzo se-medium, kunye nokukhululwa kwe-ion kwii-fillers kunye ne-gaskets.
(2) Umkrwelo: ukutsalwa komphezulu wengingqi okanye ukuxobula kwenzeka xa ipleyiti yesango kunye nesitulo sevalve sikwintshukumo ehambelanayo phantsi koxinzelelo lomlinganiselo othile wonxibelelwano.
02 Ukugcinwa kwevalve yesango
(1) Ukulungiswa kokuvuza kwangaphandle kwevalve
Xa ucinezela i-filler, i-bolt ye-gland bolt kufuneka ilinganiswe ukuphepha ukuthambeka kwedlala, ukushiya isithuba soxinzelelo. Ngelixa ucinezela i-filler, i-valve stem kufuneka iguqulelwe ukwenza i-filler ejikeleze i-valve stem uniform kwaye ithintele uxinzelelo lokufa, ukwenzela ukuba ungachaphazeli ukujikeleza kwe-valve stem, ukwandisa ukunxiba kwesithambiso, kunye nokunciphisa inkonzo. ubomi. Umphezulu we-valve stem uyakrweleka, ukuze kube lula ukuvuza okuphakathi. Kufuneka kusetyenzwe ukuze kupheliswe imikrwelo kumphezulu wesiqu sevalve phambi kokusetyenziswa.
Ukuvuza koqhagamshelwano lweflange, ukuba i-gasket yonakaliswe, kufuneka ithathelwe indawo; ukuba impahla ye-gasket ayikhethwanga ngokufanelekileyo, izinto ezinokuhlangabezana neemfuno zokusetyenziswa kufuneka zikhethwe; ukuba indawo yokutywina yeflange ikumgangatho ophantsi wokuqhuba, umphezulu wokutywina we-flange kufuneka ususwe kwaye uhlaziywe de ube ufanelekile.
Ukongeza, ukuqinisa ngokufanelekileyo iibholithi zeflange, ukuqwalasela ngokuchanekileyo umbhobho, kunye nokuphepha imithwalo eyongezelelweyo eyongezelelweyo kumdibaniso weflange kunceda ukuthintela ukuvuza kuqhagamshelwano lweflange.
(2) Ukulungiswa kokuvuza kwangaphakathi kwevalve
Ukulungiswa kokuvuza kwangaphakathi kukuphelisa umonakalo kumphezulu wokutywina kunye nokucotha kwengcambu yeringi yokutywina (xa umsesane wokutywina ugxininiswe kwipleyiti yevalve okanye isitulo sevalvu ngokucinezela okanye intambo). Ukuba umphezulu wokutywina ucutshungulwa ngokuthe ngqo kumzimba wevalvu kunye nepleyiti yevalvu, akukho ngxaki yeengcambu ezilax kunye nokuvuza.
Xa umphezulu wokutywina wonakaliswe kakhulu kwaye umphezulu wokutywina wenziwa ngomsesane wokutywina, ikhonkco elidala kufuneka lisuswe kwaye lixhotyiswe ngomsesane omtsha wokutywina; ukuba umphezulu wokutywina ucutshungulwa ngokuthe ngqo kumzimba wevalvu, indawo yokutywina eyonakalisiweyo kufuneka isuswe kuqala, kwaye umsesane omtsha wokutywina okanye umphezulu osetyenzisiweyo kufuneka ugaywe ube ngumphezulu omtsha wokutywina. Xa imikrwelo, i-bumps, i-cruise, i-dents kunye nezinye iziphene zendawo yokutywinwa zingaphantsi kwe-0.05mm, zinokupheliswa ngokugaya.
Ingcambu yomsesane wokutywina iyavuza. Xa umsesane wokutywina ucinezelwe kwaye ulungisiwe, ibhanti le-PTFE okanye ipeyinti engqindilili emhlophe inokubekwa ezantsi kwesihlalo sevalve okanye igroove yeringi yokutywina, emva koko icinezelwe kwiringi yokutywina ukuze igcwalise ingcambu yomsesane wokutywina. Xa umsesane wokutywina ulungiswe ngumsonto, ibhanti le-PTFE okanye ipeyinti eshinyeneyo emhlophe kufuneka ibekwe phakathi komsonto Ukuvuza phakathi kwemigca.
(3) Ukulungiswa kokutya kwevalve
Ngokubanzi, umzimba wevalve kunye nesigqubuthelo sevalve zidla ngokulinganayo, ngelixa isiqu sevalve sihlala sigqobhoza. Xa kulungiswa, imveliso ebolileyo kufuneka isuswe kuqala. Kwisiqu sevalve enemingxuma yokugoba, kufuneka icutshungulwe kwi-lathe ukuphelisa ukudakumba, itshintshe kwi-filler ene-agent-release-release, okanye ukucoca isithako ngamanzi adityanisiweyo ukususa i-ion kwi-filler enefuthe elibi. kwisiqu sevalve.
(4) Ukulungiswa kweebrasions kwindawo yokutywina
Ngethuba lokusetyenziswa kwe-valve, i-abrasions kwindawo yokutywinwa kufuneka ithintelwe ngokusemandleni, kwaye i-torque akufanele ibe nkulu kakhulu xa uvala i-valve. Ukuba ama-abrasions kwindawo yokutywinwa inokupheliswa ngokusila.
Ukufunyanwa kweevalvu zesango ezine
Kwimeko yemarike yangoku kunye neemfuno zabasebenzisi, iivalvu zesango lentsimbi zenza umlinganiselo omkhulu. Njengomhloli womgangatho wemveliso, ngaphezu kokuqhelana novavanyo lomgangatho wemveliso, kufuneka ube nokuqonda kakuhle kwemveliso ngokwayo.
01 Isiseko sovavanyo lwevalvu yesango yentsimbi
Ukufunyanwa kwevalve yesango yentsimbi kusekelwe kumgangatho wesizwe we-GB/T12232-2005 "Ivalve ye-valve ye-flange yokudibanisa i-iron gate yentsimbi".
02 Izinto zokuhlolwa kwevalvu yesango yentsimbi
Ibandakanya ikakhulu: i-logo, * ubukhulu bodonga oluncinci, uvavanyo loxinzelelo, uvavanyo lweqokobhe, njl njl. Phakathi kwabo, ubukhulu bodonga, uxinzelelo kunye novavanyo lweqokobhe zizinto zokuhlola eziyimfuneko kunye nezinto eziphambili. Ukuba kukho izinto ezingafanelekanga, zinokugwetywa ngokuthe ngqo njengemveliso engafanelekanga.
Ngelizwi, ukuhlolwa komgangatho wemveliso yinxalenye ebalulekileyo yokuhlolwa kwemveliso yonke. Ukubaluleka kwayo kuyabonakala. Njengabasebenzi abaphambili abahlolayo, kufuneka siqhubeke siqinisa umgangatho wethu. Akufanele senze kuphela umsebenzi omhle ekuhlolweni kwemveliso, kodwa kwakhona sibe nokuqonda kweemveliso ezihloliweyo, ukuze senze ngcono umsebenzi omhle ekuhloleni.
Ixesha lokuposa: Mar-23-2023
