Indlela Yokugcina Nokugcina Iivalvu Zesango Ezigcinayo Ngokufanelekileyo: Iingcebiso Zengcali Zokuthintela Ukuhamba Kweemoto

Iivalvu zesango elingasemva, iivalvu ze-backflow, kunye neevalvu zokuthintela i-backflow zizinto ezibalulekileyo kwiinkqubo zemibhobho, zokunkcenkceshela, kunye nezemizi-mveliso. Zikhusela ekungcolisweni ngokuthintela ukuhamba kwamanzi okungasemva kunye nokuqinisekisa ukuthembeka kwenkqubo. Nangona kunjalo, ukugcinwa nokugcinwa okungafanelekanga kunokuphazamisa ukusebenza kwazo, okukhokelela ekulungisweni okubizayo okanye ekutshintshweni. Kule khokelo, siza kuhlola amanyathelo asebenzayo okugcina nokugcina ezi valve ngokufanelekileyo.

Iinkqubo zoLondolozo kunye noLondolozo lweeValvu

Ukucoca inkangeleko

Sula umphandle wevalvu ngengubo ecocekileyo rhoqo ngenyanga ukuze ususe uthuli, ioyile kunye nenkunkuma.
Ukuba ukungcola kunzima ukukususa, sebenzisa isepha ethambileyo, kodwa kuphephe ukusebenzisa iikhemikhali ezirhabaxa kakhulu.

Umsebenzi wokuthambisa

Faka isixa esifanelekileyo se-lubricant kwimisonto, kwi-shafts nakwezinye iindawo ezihambayo zevalvu rhoqo ngekota.
Ngaphambi kokuba ufake, susa i-lubricant endala kunye nokungcola okukumphezulu weendawo ukuqinisekisa isiphumo se-lubricant.

Ukuhlolwa kwetywina

Jonga ukusebenza kokuvala kwevalvu kanye ngenyanga ukuze ubone ukuba akukho kuvuza na kwimeko yokuvalwa kwayo.
Ungagweba ukuba ukusebenza kokuvala kulungile na ngokusebenzisa uxinzelelo kunye nokusebenzisa iiarhente zokufumanisa ukuvuza okanye ukujonga amaqamza.

Iinkqubo zokusebenza kolondolozo

Ukuhlolwa kokuguquguquka kokusebenza

Yenza umsebenzi wesandla kanye kwiinyanga ezintandathu ukuvavanya ukuguquguquka kunye nokuxhathisa kwevalvu kwiimeko ezivulekileyo nezivaliweyo ngokupheleleyo.
Ukuba ufumanisa ukuba utyando lubambekile okanye alunamdla uqhelekileyo, kufuneka ufumane unobangela kwaye ujongane nawo ngexesha elifanelekileyo.
Ukuhlolwa kweenxalenye

Yenza uhlolo olupheleleyo lokuqhaqha ivalvu minyaka le, ugxile ekugugeni nasekuboleni kwesiqu sevalvu, umongo wevalvu kunye nesihlalo sevalvu.
Qinisekisa ukuba akukho mikrwelo okanye umhlwa kumphezulu wesiqu sevalvu. Ukuguguleka okuncinci kunokucolwa; ukuba umongo wevalvu kunye nesihlalo sevalvu zigugule kakhulu, zigugule okanye zikhubazekile, kufuneka zitshintshwe ngexesha elifanelekileyo.
Unyango lokulwa nokugqwala

Kwiivalvu ezivezwe kwindawo efumileyo okanye enokugqwala, ulwelo oluchasene nokugqwala kufuneka luhlolwe kwaye lulungiswe rhoqo.
Iindlela zokufaka i-hot-dip galvanizing, ukupenda kunye nezinye iindlela zingasetyenziselwa ukukhusela ukuqinisekisa ukuba ivalvu inokugcina ukusebenza kakuhle kwiindawo ezinzima.
Uvavanyo loxinzelelo

Iivalvu ezisandula ukufakwa okanye ukulungiswa kufuneka zivavanywe uxinzelelo ngaphambi kokuba zisetyenziswe ukuqinisekisa ukusebenza kwazo ngokukhuselekileyo.
Kwiivalvu ezisebenza ngendlela eqhelekileyo, kucetyiswa ukuba kwenziwe uvavanyo loxinzelelo rhoqo emva kweminyaka eli-1-2 ukuqinisekisa ukuba ukusebenza kwazo kuzinzile kwaye kuthembekile.
Ukurekhoda nokugcina kwingqokelela

Bhala iirekhodi ezineenkcukacha zomsebenzi ngamnye wolondolozo nowolondolozo, kuquka ixesha lokusebenza, abasebenzi, umxholo, iingxaki ezifunyenweyo kunye neziphumo zonyango.
Gcina iirekhodi ezifanelekileyo ngokufanelekileyo ukuze kube lula ukuhlalutya nokuphucula ukusetyenziswa kweevalvu kunye nomsebenzi wokulungisa kwixesha elizayo.

Xa kusenziwa imisebenzi yokugcinwa nokugcinwa kweevalvu, yonke imithetho yokhuseleko kufuneka ilandelwe ngokungqongqo. Ngaphambi kokuba kusetyenziswe, kufuneka kuqinisekiswe ukuba inkqubo iyeke ngokupheleleyo ukusebenza kwaye uxinzelelo luphelile. Kwangaxeshanye, umqhubi kufuneka abe nezakhono zobungcali ezifanelekileyo kunye namava atyebileyo ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle komsebenzi wokugcinwa.

Iindawo zokugcinwa nokulungiswa kweentlobo zeevalvu eziqhelekileyo

Ivalvu yesango:

Ngexesha lokugcinwa, ivalvu yesango kufuneka igcinwe kwigumbi elomileyo nelinomoya, kwaye zombini iziphelo zendlela kufuneka zivalwe. Jonga rhoqo ukuguguleka komphezulu wokuvala kunye nomsonto wetrapezoidal, susa ukungcola ngexesha kwaye ufake ioyile yokulwa nomhlwa. Emva kokufakela, qiniseka ukuba wenza uvavanyo lokusebenza kokuvala.

Ngexesha lokulungisa, ukuba umphezulu wokuvala ugugile, kufuneka kufunyanwe unobangela kwaye kufuneka kwenziwe unyango olufanelekileyo okanye ukutshintshwa kweendawo. Kwangaxeshanye, qinisekisa ukuba isango likwimeko evulekileyo ngokupheleleyo okanye evalekileyo ngokupheleleyo, kuphephe ukulisebenzisa ukulungisa ukuhamba kwamanzi, ukuze kuthintelwe ukukhukuliseka kunye nokuguguleka ngokukhawuleza komphezulu wokuvala. Ivili lesandla kufuneka lisetyenziswe xa kusetyenzwa iswitshi, kwaye kufuneka kulandelwe umgaqo wokujikeleza ngewotshi xa kuvaliwe kwaye kujikelezwe ngewotshi xa kuvuleka.

Ivalvu yeglobe:

Indlela yokulungisa ifana neyevalvu yesango, kodwa kufuneka kuqwalaselwe indlela oluhamba ngayo ulwelo ngexesha lokufakwa ukuqinisekisa ukuba ulwelo luhamba ngevalvu ukusuka ezantsi ukuya phezulu. Lugcine lucocekile ngexesha lokusetyenziswa kwaye wongeze i-lubricant kwintambo yokudlulisa rhoqo.

Ngexesha lokulungiswa, ivalvu yeglobe inomsebenzi othembekileyo wokuvala kuba isiqu sevalvu yeglobe valve sinomgca omfutshane wokuvula okanye wokuvala. Isihlalo sevalvu kunye nediski yevalvu zihlala kulula ukuzilungisa okanye ukuzitshintsha ngaphandle kokususa ivalvu yonke kumbhobho. Kwangaxeshanye, qaphela ukuze uphephe ukusebenza ngokugqithisileyo ukuze unciphise ukuguguleka koomatshini kumphezulu wokuvala.

Ivalvu yebhabhathane:

Gcina ucocekile ngexesha lokulungisa kwaye wongeze rhoqo igrisi yokuthambisa kwiindawo zokuhambisa. Ezinye iivalvu zebhabhathane zizaliswe yi-molybdenum disulfide lubricating paste, ekufuneka yongezwe rhoqo ukuqinisekisa ukusebenza kokutywina.

Ngexesha lokugcinwa, iivalvu zebhabhathane eziqhelekileyo zimbini: uhlobo lwe-wafer kunye nohlobo lweflange. Kwimeko evulekileyo ngokupheleleyo, ubukhulu bepleyiti yebhabhathane yeyona nto ibangela ukuba i-medium ihambe emzimbeni wevalvu, ngoko ke ukuhla koxinzelelo oluveliswa yivalvu kuncinci, kwaye ineempawu ezilungileyo zokulawula ukuhamba kwamanzi. Ukuba kufunyenwe isiphene, yeka ukuyisebenzisa ngoko nangoko uze ufumane unobangela.

Ivalvu yebhola:

Xa igcinwe ixesha elide, qiniseka ukuba zombini iziphelo zivalekile kwaye zivuliwe. Gcina icocekile ngexesha lokusetyenziswa kwaye yongeza i-lubricant kwimisonto yokudlulisa rhoqo. Kwangaxeshanye, kuphephe ukuyisebenzisa ivuliwe kancinci ukuthintela impembelelo yolwelo kwivalvu.

Ngexesha lokulungiswa, ivalvu yebhola ingavulwa ngokupheleleyo okanye ivalwe ngokupheleleyo kuphela. Akuvumelekanga ukuba isetyenziswe ukulungisa ukuhamba kwamanzi ukuthintela ukukhukuliseka kunye nokuguguleka ngokukhawuleza komphezulu wokuvala.
Ukongeza, kukho ezinye iingcebiso zokugcinwa nokulungiswa kweevalvu zokujonga:

Ivalvu yokujonga kufuneka igcinwe kwigumbi elomileyo nelinomoya ukuze kuthintelwe ukuba inkunkuma ingangeni kwisakhiwo sayo sangaphakathi ize ibangele umonakalo; imingxuma yemisele kuzo zombini iziphelo kufuneka ivalwe ngentloko ukuze igcine ukusebenza kwayo okuhle kokuvaleka.

Iivalvu zokujonga ezigcinwe ixesha elide kufuneka zihlolwe rhoqo, ukungcola okungaphakathi kwazo kufuneka kususwe, kwaye ibhotolo kufuneka isetyenziswe ngokulinganayo kumphezulu ocutshungulweyo ukuze kukhuselwe.

Imeko yokusebenza kwevalvu yokujonga esebenza nayo kufuneka ihlolwe rhoqo ukuze kufunyanwe kwaye kususwe iimpazamo ezincinci ngexesha. Ukuba kukho impazamo enkulu, kufuneka isuswe ukuze ilungiswe. Emva kokuba kugqityiwe ukuhlolwa nokugcinwa, uvavanyo lokutywina kufuneka lwenziwe kwakhona, kwaye imeko yempazamo kunye nenkqubo yokuhlola nokugcinwa kufuneka irekhodwe ngokweenkcukacha.

Kwivalvu yokujonga i-muffler, ngexesha lokugcina nokuthuthwa, iindawo zokuvula nezokuvala kufuneka ziqinisekiswe ukuba zikwimeko yokuvalwa, kwaye kufuneka kuthathwe amanyathelo alandelayo okukhusela:

Idiski yevalvu kufuneka ibekwe kwindawo evulekileyo.

Sebenzisa iibhodi zefoam ukuvala imingxuma yangaphakathi kuzo zombini iziphelo zobubanzi uze uzifake ngokuqinileyo ngezigqubuthelo ezingaboniyo ukuthintela uthuli kunye nokugqwala, ngelixa ugcina umjelo ucocekile kwaye umphezulu wokugqibela uthe tyaba.

Pakisha kwaye ukhusele inxalenye yesilinda ngokufanelekileyo ukuqinisekisa ukuba inemisebenzi yokukhusela ukubetheka kunye nokungqubana.

Xa ibekwe, kufuneka igcinwe izinzile, qinisekisa ukuba isixhobo sokuqhuba umoya sijonge phezulu, kwaye uphephe ukucinezelana.

Xa zibekwe ixesha elide, ukungcola kunye nomhlwa kwiitshaneli ezimbini kunye nomphezulu wokuvala kunye nokukhuselwa kwesango lokuwelda kufuneka kuhlolwe rhoqo emva kweenyanga ezintathu. Emva kokususa ukungcola kunye nomhlwa, ioyile yokulwa nomhlwa kufuneka isetyenziswe kwakhona ukuze ikhuseleke.

Umsebenzi ophambili wevalvu yokujonga kukuthintela ukubuya kwamanzi kwisixhobo, ngoko ke kufuneka ifakwe kakhulu kwizixhobo, izixhobo kunye nemibhobho. Iivalvu zokujonga i-silencer zihlala zifanelekile kwimidiya ecocekileyo kwaye akufuneki zisetyenziswe kwimidiya equlethe amasuntswana aqinileyo kunye ne-viscosity ephezulu. Kwimibhobho ethe tye enobubanzi obuqhelekileyo be-50mm, kucetyiswa ukusebenzisa iivalvu zokujonga i-silencing ezithe nkqo.

Ukuthintela ivalvu ukuba ingagqwali, kufuneka kuthathwe amanyathelo afana nokusebenzisa rhoqo ioyile yokulwa nomhlwa okanye igrisi kumphezulu womzimba wevalvu, ingakumbi kwindawo efumileyo. Kwangaxeshanye, jonga rhoqo ukuba izibophelelo zevalvu zikhululekile na kwaye uziqinise ngexesha. Izitywino zizinto ezibalulekileyo ukuqinisekisa ukusebenza kokutywina kweevalvu kwaye kufuneka zitshintshwe rhoqo. Ngokuqhelekileyo kucetyiswa ukuba zitshintshwe rhoqo emva kweminyaka eli-1-2, kwaye izitywino ezihambelana nomzekelo wevalvu kufuneka zikhethwe xa kutshintshwa.

Ulondolozo:

Iimpazamo eziqhelekileyo kunye nezisombululo zezi zilandelayo:

Idiski yevalvu yaphukile: Oku kudla ngokubangelwa luxinzelelo oluphakathi ngaphambi nasemva kokuba ivalvu yokukhangela isondelelene kwaye "ixabene", nto leyo ebangela ukuba idiski yevalvu kunye nesihlalo sevalvu zibetheke rhoqo. Ukuthintela le ngxaki, kucetyiswa ukuba kusetyenziswe ivalvu yokukhangela enediski yevalvu eyenziwe ngezinto eziqinileyo.
Ukubuyela umva kweendaba: Oku kunokubangelwa kukonakala komphezulu wokuvala okanye ukungcola okubanjwayo. Isisombululo esifanelekileyo kukulungisa umphezulu wokuvala nokucoca ukungcola.
Xa usenza ulondolozo nokulungiswa kwevalvu yokujonga, inyathelo lokuqala kukuvala ivalvu nokunqumla umbane ukuqinisekisa ukusebenza ngokukhuselekileyo. Kwangaxeshanye, kufuneka kwenziwe amaqhinga okulungisa afanelekileyo kwiintlobo ezahlukeneyo zeevalvu kunye neendawo zokusebenzisa. Ukuba udibana neempazamo ezinzima okanye iingxaki ezinzima, kuyacetyiswa ukuba ufune inkxaso kwiingcali zobungcali okanye uqhagamshelane nomenzi ukuze ufumane isikhokelo esithe vetshe.

Ngexesha lokugcinwa nokulungiswa, qaphela ezi ngxaki zilandelayo eziqhelekileyo:

Ukugcinwa kwenxalenye yothumelo: Jonga rhoqo iindawo zothumelo kwaye wongeze igrisi yokuthambisa ngexesha elifanelekileyo ukuthintela ukuguguleka okanye ukuxinana ngenxa yokungoneli kokuthambisa.

Amanyathelo okuzikhusela xa ufaka igrisi: Lawula ubungakanani bokufakwa kwegrisi, ubale ngokuchanekileyo umthamo wokuvala ngokobungakanani bevalvu kunye nohlobo lwayo, kwaye ufake isixa esifanelekileyo segrisi. Kwangaxeshanye, nikela ingqalelo kuxinzelelo lokufakwa kwegrisi, kuphephe ukuba luphezulu kakhulu okanye luphantsi kakhulu, kwaye ululungise ngokwemeko yokwenyani, njengokutshintsha umngxuma wegrisi okanye ukusebenzisa ulwelo lokucoca ukuze uthambise kwaye uqinise igrisi yokuvala kwaye ufake igrisi entsha.

Ukugcinwa kokupakisha: Ukupakisha yinxalenye ebalulekileyo yokuqinisekisa ukutywinwa kwevalvu. Ukuthintela ukuvuza, oku kungenziwa ngokuqinisa ngokufanelekileyo amantongomane kumacala omabini e-packing gland, kodwa lumka ungaqini kakhulu ngaxeshanye ukuze ukuthintela ukupakisha ukuba kungaphulukani nokuqina kwayo.

Uhlolo lwemihla ngemihla: Jonga ukuba zonke iindawo zevalvu ziphelele kwaye zilungile, kwaye ukuba iibhanti zeflange kunye nezebracket ziqinile kwaye aziguquki. Kwangaxeshanye, qaphela ukuba isikali sevalvu, isitywino se-lead, isiciko kunye nezixhobo ze-pneumatic aziguquki na.

Kuphephe ukusebenza ngendlela engafanelekanga: Akuvumelekanga ngokupheleleyo ukubetha ivalvu okanye ukuyisebenzisa njengomqamelo wokubethela ezinye izinto, kwaye kuphephe ukuma kwivalvu okanye ukuxhasa izinto ezinzima. Ivalvu esebenzayo kufuneka ithintelwe ekubetheni. Xa ucoca umbhobho wenkqubo, kuyimfuneko ukuqaphela ukuba iiparameter zenkqubo ezithwalwa yivalvu zingaphakathi koluhlu oluvumelekileyo na ukuthintela umonakalo kwiphakheji yevalvu kunye nomzimba wayo.

Ukuphathwa kweemeko ezikhethekileyo: Xa usebenzisa ivalvu yomphunga, kufuneka uyivule kancinci ukuze ukhuphe amanzi aqunyiweyo, uze uyivule kancinci kancinci uze ubuyisele ivili lesandla phantsi ukuqinisekisa ukuba liqinile. Kwimeko yobushushu obuphantsi, kuyimfuneko ukususa amanzi aqunyiweyo kunye namanzi aqokelelweyo kwiivalvu zomphunga kunye namanzi ukuze uthintele ukubanda nokuqhekeka. Xa ubushushu bevalvu yobushushu obuphezulu bunyuka bufikelela kuma-200°C, iibholithi kufuneka “ziqiniswe ngobushushu” ukuze kugcinwe ukutywinwa, kodwa olu sebenzi akufuneki lwenziwe xa ivalvu ivaliwe ngokupheleleyo.

Ukugcinwa nokulungiswa kwevalvu kubalulekile ekusebenzeni kwayo okuzinzileyo, ukwandiswa kwexesha lokuphila kunye nokuthintela ukuvuza. Ukuba awuqhelananga nolwakhiwo okanye ukusebenza kwevalvu, kuyacetyiswa ukuba ucele uncedo kwiingcali zobugcisa. Ukongeza, kuyimfuneko ukwenza umsebenzi oqhelekileyo kunye nokugcinwa ngokuhambelana nencwadi yemiyalelo yevalvu kunye nemigangatho efanelekileyo.

Iintlobo zeevalvu ezisetyenziswa rhoqo kunye neempawu zazo kwiitanki zonyango lwelindle

Kwicandelo lokucocwa kwamanzi amdaka, iivalvu zizixhobo ezibalulekileyo, kwaye ukukhethwa kwazo kunye nokugcinwa kwazo kuchaphazela ngokuthe ngqo uzinzo kunye nokusebenza kakuhle kwenkqubo yonke. Eli nqaku liza kwazisa iintlobo ezininzi zeevalvu ezisetyenziswa rhoqo kwiitanki zokucocwa kwamanzi amdaka, kubandakanya iimpawu zazo zesakhiwo, imigaqo yokusebenza kunye neemeko ezifanelekileyo, ukukunceda uqonde ngcono kwaye usebenzise ezi valve.