Ivalve yesango yivalve eqhelekileyo, esetyenziswa ngokubanzi, esetyenziswa ikakhulu kugcino lwamanzi, isinyithi kunye namanye amashishini, uluhlu lwayo olubanzi lokusebenza luye lwaqatshelwa yimarike, i-TWS kumgangatho kunye novavanyo lobugcisa kunye nomsebenzi wokuvavanya iminyaka emininzi, ukongeza ekubhaqweni kweevalvu zesango banophando oluthile, kodwa nasekusetyenzisweni kweevalvu zesango, ukulungisa iingxaki kunye neminye imiba yophando ngononophelo.
Ngokweendlela ezahlukeneyo zeemilo zeevalvu zesango, iivalve zesango zinokwahlulwa zibe ngamacandelo amabini: uhlobo lwe-wedge kunye nohlobo oluhambelanayo.
Ipleyiti yesango yevalve yesango ye-wedge imile okwe-wedge, kwaye umphezulu wokutywina uthambekele kumgca osembindini wetshaneli, kwaye i-wedge phakathi kwepleyiti yesango kunye nesihlalo sevalve isetyenziselwa ukufezekisa ukutywinwa (ukuvalwa). Ipleyiti ye-wedge ingaba yisango elilodwa okanye isango eliphindwe kabini.
Imiphezulu yokutywina yevalve yesango ehambelanayo ihambelana nomnye kunye ne-perpendicular kumgca ophakathi wesiteshi, ezahlulahlulwe zibe ziintlobo ezimbini: kunye nangaphandle kokuvula indlela. Kukho inkunzi yegusha ephindwe kabini enesixhobo sokugoba, xa inkunzi yegusha isihla, umphetho weenkunzi zeegusha ezimbini ezinxuseneyo uxhonywe phezulu kwisihlalo sevalve yinqwelo-moya ethambekele kuyo, umjelo wokuhamba uyasikwa, xa inkunzi yegusha iphakama kwaye ivuleke, umphetho wohlulwe kumphezulu wenkunzi yegusha, inkunzi yegusha iphakama iye kumphakamo othile, kwaye umjikelo ubanjwe ngumphathi kwinkunzi yegusha. Xa inkunzi yegusha ityibilika kwisitulo sevalve ngakwimigangatho emibini yevalve enxuseneyo, uxinzelelo lolwelo lusetyenziswa ukucinezela inkunzi yegusha kumzimba wevalvu kwicala lokuphuma levalvu ukutywina ulwelo.
Ngokwentshukumo eyahlukileyo yesikhondo sevalve xa isango livulwa kwaye livaliwe, iivalve zesango zohlulwe zibe ziindidi ezimbini: iivalve zesango ezinyukayo kunye neevalvu zesango ezifihliweyo. Isiqu sevalve kunye nesango levalve yesango elinyukayo liyenyuka kwaye liwe ngaxeshanye xa livula okanye livala; xa i-valve yesango ye-stem efihliweyo ivuliwe okanye ivaliwe, i-valve stem ijikeleza kuphela, kwaye ukunyuka nokuwa kwe-valve stem akubonakali, kwaye ipleyiti yevalve iphakama okanye iwa. Inzuzo yevalve yesango enyukayo kukuba umphakamo wokuvula umjelo unokujongwa ngokunyuka kobude besiqu sevalve, kodwa umphakamo okhoyo unokufinyezwa. Xa ujongene nevili lesandla okanye umqheba, jika ivili lesandla okanye ubambe ngasekunene ukuvala ivalve.
2. Izihlandlo kunye nemigaqo yokukhetha iivalve zesango
01. Ivalve yesango elisicaba
Amathuba eevalvu zesango elisicaba:
(1) Imibhobho yeoli neyegesi yendalo. Iivalvu zesango ezisicaba ezinemingxuma yokuguqula zikwakulungele ukucoca imibhobho.
(2) Imibhobho kunye nezixhobo zokugcina ioli esulungekisiweyo.
(3) Iindawo zokuvelisa i-oyile negesi yendalo.
(4) Imibhobho enamajelo eendaba amisiweyo.
(5) Imibhobho yothumelo lwegesi yeSixeko.
(6) Iiprojekthi zobonelelo lwamanzi.
Umgaqo-siseko wokukhetha ivalve yesango elisicaba:
(1) Kwimibhobho yothumelo lweoyile nerhasi yendalo, iivalvu zeplati yesango ezinamasango amabini akhethiweyo. Ukuba ufuna ukucoca umbhobho, khetha ivalve yesango elisicaba elivulekileyo elinenkunzi yegusha enye kunye nomngxuma wokuphambukela.
(2) Kumbhobho wothutho kunye nezixhobo zokugcina i-oyile esulungekisiweyo, ivalve yesango elisicaba elinesango elinye okanye eliphindwe kabini elingenamngxuma wokuphambukela liyakhethwa.
(3) Kwisixhobo sokuxhaphaza se-oyile kunye negesi yendalo, ivalve yesango elisicaba elineplati yesango enye okanye ephindwe kabini kunye nesitulo sevalvu edadayo kunye nomngxuma wokuphambukisa siyakhethwa.
(4) Kwimibhobho exhonyiweyo, iivalvu zesango elisicaba ezimile okwemela zikhethwa.
(5) Kwimibhobho yothumelo lwerhasi ezidolophini, isango elinye okanye ipleyiti ephindiweyo ethambileyo etywina intonga evulekileyo yesango elisicaba liyakhethwa.
(6) Kwiiprojekthi zonikezelo lwamanzi, isango elinye okanye ivelufa yesango eliphindwe kabini engenamngxuma wokuphambukisa intonga evulekileyo yevalve yesango elisicaba iyakhethwa.
02. Ivalve yesango leWedge
Izihlandlo zokusetyenziswa kwevalve yesango le-Wedge: kwiindidi ezahlukeneyo zevalve, ivalve yesango yeyona nto isetyenziswa kakhulu, ngokuqhelekileyo ifanelekile kuphela ukuvula ngokupheleleyo okanye ukuvalwa ngokupheleleyo, ayikwazi ukusetyenziselwa ukulungiswa kunye nokubetha.
Iivalve zesango le-Wedge zisetyenziswa ngokubanzi kwiindawo apho kungekho mfuneko zingqongqo kwimilinganiselo yangaphandle yevalve, kwaye iimeko zokusetyenziswa zinzima kakhulu. Ngokomzekelo, indawo yokusebenza yokushisa okuphezulu kunye noxinzelelo oluphezulu lufuna ukuba iindawo zokuvala zivaliwe ixesha elide.
Ngokuqhelekileyo, ukusetyenziswa koxinzelelo oluphezulu, ukunqunyulwa koxinzelelo oluphezulu (umehluko omkhulu woxinzelelo), ukunqunyulwa kwengcinezelo ephantsi (umlinganiselo omncinci woxinzelelo), ingxolo ephantsi, i-cavitation kunye ne-vaporization, iqondo lokushisa eliphakathi, ukushisa okuphantsi (i-cryogen), i-valve ye-wedge yesango iyanconywa. Umzekelo, isetyenziswa kakhulu kwishishini lamandla ombane, ukunyibilikiswa kwepetroleum, ishishini lepetrochemical, ioyile engaselunxwemeni, ubunjineli bamanzi etephu kunye nobunjineli bokucocwa kogutyulo kulwakhiwo lwasezidolophini, nakwishishini lemichiza.
Umgaqo wokhetho:
(1) Iimfuno zeempawu zolwelo lwevalve. Iivalve zesango zikhethwa kwiimeko zokusebenza kunye nokuchasana kokuhamba okuncinci, umthamo oqinileyo wokuhamba, iimpawu ezihamba kakuhle kunye neemfuno ezingqongqo zokutywinwa.
(2) Ubushushu obuphezulu kunye noxinzelelo oluphezulu. Njengoxinzelelo oluphezulu lwe-steam, ubushushu obuphezulu kunye neoli yoxinzelelo oluphezulu.
(3) Ubushushu obuphantsi (cryogen) phakathi. Njenge-ammonia elulwelo, i-hydrogen engamanzi, ioksijini engamanzi kunye nezinye imidiya.
(4) Uxinzelelo oluphantsi kunye nobukhulu obukhulu. Ezinje ngeeprojekthi zamanzi epompo, iiprojekthi zokucoca ugutyulo.
(5) Imibhobho yothumelo lwegesi yeSixeko.
(6) Iiprojekthi zobonelelo lwamanzi.
Umgaqo wokhetho wevalve yesango elisicaba:
(1) Kwimibhobho yothumelo lweoyile nerhasi yendalo, iivalvu zeplati yesango ezinamasango amabini akhethiweyo. Ukuba ufuna ukucoca umbhobho, khetha ivalve yesango elisicaba elivulekileyo elinenkunzi yegusha enye kunye nomngxuma wokuphambukela.
(2) Kumbhobho wothutho kunye nezixhobo zokugcina i-oyile esulungekisiweyo, ivalve yesango elisicaba elinesango elinye okanye eliphindwe kabini elingenamngxuma wokuphambukela liyakhethwa.
(3) Kwisixhobo sokuxhaphaza se-oyile kunye negesi yendalo, ivalve yesango elisicaba elineplati yesango enye okanye ephindwe kabini kunye nesitulo sevalvu edadayo kunye nomngxuma wokuphambukisa siyakhethwa.
(4) Kwimibhobho exhonyiweyo, iivalvu zesango elisicaba ezimile okwemela zikhethwa.
(5) Kwimibhobho yothumelo lwerhasi ezidolophini, isango elinye okanye ipleyiti ephindiweyo ethambileyo etywina intonga evulekileyo yesango elisicaba liyakhethwa.
(6) Kwiiprojekthi zonikezelo lwamanzi, isango elinye okanye ivelufa yesango eliphindwe kabini engenamngxuma wokuphambukisa intonga evulekileyo yevalve yesango elisicaba iyakhethwa.
02. Ivalve yesango leWedge
Izihlandlo zokusetyenziswa kwevalve yesango le-Wedge: kwiindidi ezahlukeneyo zevalve, ivalve yesango yeyona nto isetyenziswa kakhulu, ngokuqhelekileyo ifanelekile kuphela ukuvula ngokupheleleyo okanye ukuvalwa ngokupheleleyo, ayikwazi ukusetyenziselwa ukulungiswa kunye nokubetha.
Iivalve zesango le-Wedge zisetyenziswa ngokubanzi kwiindawo apho kungekho mfuneko zingqongqo kwimilinganiselo yangaphandle yevalve, kwaye iimeko zokusetyenziswa zinzima kakhulu. Ngokomzekelo, indawo yokusebenza yokushisa okuphezulu kunye noxinzelelo oluphezulu lufuna ukuba iindawo zokuvala zivaliwe ixesha elide.
Ngokuqhelekileyo, ukusetyenziswa koxinzelelo oluphezulu, ukunqunyulwa koxinzelelo oluphezulu (umehluko omkhulu woxinzelelo), ukunqunyulwa kwengcinezelo ephantsi (umlinganiselo omncinci woxinzelelo), ingxolo ephantsi, i-cavitation kunye ne-vaporization, iqondo lokushisa eliphakathi, ukushisa okuphantsi (i-cryogen), i-valve ye-wedge yesango iyanconywa. Umzekelo, isetyenziswa kakhulu kwishishini lamandla ombane, ukunyibilikiswa kwepetroleum, ishishini lepetrochemical, ioyile engaselunxwemeni, ubunjineli bamanzi etephu kunye nobunjineli bokucocwa kogutyulo kulwakhiwo lwasezidolophini, nakwishishini lemichiza.
Umgaqo wokhetho:
(1) Iimfuno zeempawu zolwelo lwevalve. Iivalve zesango zikhethwa kwiimeko zokusebenza kunye nokuchasana kokuhamba okuncinci, umthamo oqinileyo wokuhamba, iimpawu ezihamba kakuhle kunye neemfuno ezingqongqo zokutywinwa.
(2) Ubushushu obuphezulu kunye noxinzelelo oluphezulu. Njengoxinzelelo oluphezulu lwe-steam, ubushushu obuphezulu kunye neoli yoxinzelelo oluphezulu.
(3) Ubushushu obuphantsi (cryogen) phakathi. Njenge-ammonia elulwelo, i-hydrogen engamanzi, ioksijini engamanzi kunye nezinye imidiya.
(4) Uxinzelelo oluphantsi kunye nobukhulu obukhulu. Ezinje ngeeprojekthi zamanzi epompo, iiprojekthi zokucoca ugutyulo.
(5) Indawo yokufakela: xa umphakamo wofakelo ukhawulelwe, ivalve yesango yendonga emnyama ikhethiwe; Xa ubude bungaphelelanga, ivalve yesango yentonga evulekileyo ikhethiwe.
(6) Kuphela xa inokuvulwa ngokupheleleyo okanye ivalwe ngokupheleleyo, kwaye ayinakusetyenziselwa ukulungiswa kunye ne-throttling, i-valve yesango le-wedge inokukhethwa.
3. Iimpazamo eziqhelekileyo kunye nokugcinwa
01. Iimpazamo eziqhelekileyo kunye nezizathu zeevalve zesango
Emva kokuba i-valve yesango isetyenzisiwe, ezi ngxaki zilandelayo zivame ukuvela ngenxa yobushushu obuphakathi, uxinzelelo, ukubola kunye nokunyakaza okuhambelana noqhagamshelwano ngalunye.
(1) Ukuvuza: Kukho iindidi ezimbini, ezizezi, ukuvuza kwangaphandle kunye nokuvuza kwangaphakathi. Ukuvuza okuya kumphandle wevalve kubizwa ngokuba kukuvuza, kwaye ukuvuza kuxhaphakile kwiibhokisi zokuhlohla kunye noqhagamshelo lweflange.
Isizathu sokuvuza kwebhokisi yokupakisha: iindidi okanye umgangatho wokupakisha awuhambelani neemfuno; Ukupakisha ukuguga okanye ukuguga kwesiqu; Idlala lokupakisha elixengaxengayo Ukukrazuka kumphezulu wesikhondo.
Isizathu sokuvuza koxhumo lwe-flange: izinto eziphathekayo okanye ubukhulu be-gasket abuhambisani neemfuno; Umgangatho ophantsi wokusetyenzwa komphezulu wokutywina weflange; ukuqiniswa okungafanelekanga kweebholiti zokudibanisa; Umbhobho awulungiswanga ngokufanelekileyo, okukhokelela kwimithwalo eyongezelelweyo eyongezelelweyo kumalungu.
Isizathu sokuvuza kwangaphakathi kwevalve: Ukuvuza okubangelwa ukuvaleka okuvaliweyo kwevalve kukuvuza kwangaphakathi, okubangelwa ngumonakalo kwindawo yokutywina yevalve okanye ingcambu ekhululekile yeringi yokutywina.
(1) Umhlwa kaninzi ubangelwa kukuhlwa komphezulu wokutywina womzimba wevalvu, isigqubuthelo sevalvu, isiqu sevalve kunye neflange. I-Corrosion ikakhulu ngenxa yesenzo se-medium, kodwa kunye nefuthe lokukhulula i-ion kwi-filler kunye ne-gasket.
(2) Ukukrazuka: ukubrashwa komphezulu wendawo okanye isenzeko sokuxobula okwenzeka xa inkunzi yegusha kunye nesitulo sevalvu zikwintshukumo ehambelanayo phantsi koxinzelelo oluthile loqhagamshelwano.
02. Ukugcinwa kweiivalve zesango
(1) Ukulungiswa kokuvuza kwangaphandle kwevalve
Xa ucinezela ukupakisha, i-bolt ye-gland kufuneka ifakwe ngokulinganayo ukuphepha ukuthambeka kwedlala kwaye ushiye isithuba soxinzelelo. Ngexesha elifanayo njengoko ucinezela ukupakisha, i-valve stem kufuneka ijikelezwe ukwenza ukupakisha malunga ne-valve stem uniform, kwaye uthintele uxinzelelo ekubeni lufile kakhulu, ukwenzela ukuba ungachaphazeli ukujikeleza kwe-valve stem, ukwandisa ukugqoka ukupakisha, kunye nokunciphisa ubomi benkonzo. Umphezulu we-valve stem u-abrasive, ukwenzela ukuba i-medium ibe lula ukuvuza, kwaye kufuneka icutshungulwe ukuphelisa i-scars ebusweni be-valve stem ngaphambi kokusetyenziswa.
Ukuvuza koqhagamshelwano lweflange, ukuba i-gasket yonakaliswe, kufuneka ithathelwe indawo; Ukuba izinto ze-gasket azikhethwanga ngokufanelekileyo, izinto ezinokuhlangabezana neemfuno zokusetyenziswa kufuneka zikhethwe; Ukuba umgangatho wokucutshungulwa komphezulu wokutywina we-flange umbi, indawo yokutywina ye-flange kufuneka isuswe kwaye ihlaziywe ide ibe ifanelekile.
Ukongezelela, ukuqiniswa okufanelekileyo kweebholiti ze-flange, ukulungelelaniswa okufanelekileyo kwemibhobho, kunye nokuphepha kwemithwalo eyongezelelweyo eyongezelelweyo kwikhonkco yeflange konke kukulungele ukuthintela ukuvuza kwi-joint ye-flange.
(2) Ukulungiswa kokuvuza ngaphakathi kwevalve
Ukulungiswa kokuvuza kwangaphakathi kukuphelisa umonakalo kumphezulu wokutywina kunye nokutywinwa okuxekethileyo kwingcambu (xa umsesane wokutywina ucinezelwe kwipleyiti yevalve okanye isihlalo esinentambo). Ukuba umphezulu wokutywina ucutshungulwa ngokuthe ngqo kumzimba wevalvu kunye nepleyiti yevalvu, akukho ngxaki yeengcambu ezixekileyo kunye nokuvuza.
Xa umphezulu wokutywina wonakaliswe kakhulu, kwaye umphezulu wokutywina wenziwa ngomsesane wokutywina, umsesane omdala kufuneka ususwe kwaye umsesane omtsha wokutywina kufuneka uxhotyiswe; Ukuba umphezulu wokutywina wenziwa ngoomatshini ngokuthe ngqo kumzimba wevalvu, indawo yokutywina eyonakalisiweyo kufuneka isuswe kuqala, kwaye umsesane omtsha wokutywina okanye umphezulu owenziwe ngoomatshini 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.
Xa umsesane wokutywina ucinezelwe-ngaphakathi kwaye ulungisiwe, iteyiphu ye-PTFE okanye ipeyinti engqindilili emhlophe inokubekwa ezantsi kwesihlalo sevalve okanye i-ring groove, emva koko icinezelwe kwitywina ukwenza ingcambu yomsesane wokutywina izaliswe; Xa itywina intambo, tape yePTFE okanye ipeyinti emhlophe kufuneka ibekwe phakathi kwemisonto ukuthintela ulwelo ekuvuzeni phakathi kwemisonto.
(3) Ukulungiswa kweivalveumhlwa
Ngokubanzi, umzimba wevalve kunye nebhonethi zidliwe ngokulinganayo, ngelixa isiqu sevalve sihlala sinemingxuma. Xa kulungiswa, iimveliso ze-corrosion kufuneka zisuswe kuqala, kwaye i-valve stem enemingxuma yokugoba kufuneka icutshungulwe kwi-lathe ukuphelisa ukudakumba, kunye nokupakisha okuqulethe i-agent ekhupha ngokukhawuleza kufuneka kusetyenziswe endaweni, okanye ukupakisha kufuneka kucocwe ngamanzi adiyitiweyo ukususa i-ion enefuthe elibi kwi-valve stem ekupakisheni.
(4) Ukulungiswa kwe-abrasion kwindawo yokutywina
Ekusetyenzisweni kweivalve, indawo yokutywina kufuneka ithintelwe kwi-abrasion kangangoko kunokwenzeka, kwaye i-torque akufanele ibe nkulu kakhulu xa i-valve ivaliwe. Ukuba indawo yokutywina i-abrasive, inokupheliswa ngokugaya.
Okwesine, ukufunyanwa kweevalvu zesango
Kwimeko yemarike yangoku kunye neemfuno zabasebenzisi, iivalvu zesango lentsimbi zenza umlinganiselo omkhulu. Njengomhloli womgangatho wemveliso, ukongeza ekubeni siqhelene nokuhlolwa komgangatho wemveliso, kufuneka kwakhona sibe nokuqonda kakuhle kwemveliso ngokwayo.
01. Isiseko sovavanyo lweevalvu zesango lentsimbi
Uvavanyo lwe-valve yentsimbi yentsimbi lusekelwe kumgangatho wesizwe we-GB/T12232-2005 "I-General Valve Flange Connection Iron Gate Valve".
02. Izinto zokuhlolwa kweevalvu zesango lentsimbi
Ngokukodwa zibandakanya: uphawu, ubukhulu bodonga oluncinci, uvavanyo loxinzelelo, uvavanyo lwegobolondo, njl., apho ubukhulu bodonga, uxinzelelo, uvavanyo lweqokobhe luyinto yokuhlola eyimfuneko, kodwa kunye nento ephambili, ukuba kukho izinto ezingahambelaniyo, zinokugwetywa ngokuthe ngqo njengeemveliso ezingafanelekanga.
Ngamafutshane, ukuhlolwa komgangatho wemveliso yinxalenye ebalulekileyo yokuhlolwa kwemveliso yonke, ukubaluleka kwayo kuyabonakala, njengabasebenzi bokuhlola umgca wangaphambili, kufuneka siqhubeke siqinisa umgangatho wabo, kungekhona nje ukwenza umsebenzi omhle ekuhlolweni kwemveliso, kodwa nokuba nokuqonda kokuhlolwa kweemveliso, ukwenzela ukuba senze ngcono umsebenzi omhle ekuhloleni.
Tianjin Tanggu Water-Seal Valve Co.,ltdikakhulu imveliso ehleliyo eyomelelaivelufa butterfly,ivalve yesango,Y-isihluzi, ivalve yokulinganisa, ivalve yokukhangela, ivalve yokulinganisa, i-back flow preventer njl.
Ixesha lokuposa: Dec-26-2024
