Ukuvuza kwevalvu yogcino lwemihla ngemihla kunye nokuvuza kwevalvu iindlela ezintlanu zobugcisa ukujongana nazo

Ukuvuza kwevalvu yogcino lwemihla ngemihla kunye nokuvuza kwevalvu iindlela ezintlanu zobugcisa ukujongana nazo

Iivalvu azisetyenziswa kuphela kumashishini ahlukeneyo, kodwa nakwiindawo ezahlukeneyo. Ezinye iivalvu kwiindawo zokusebenza ezihlwempuzekileyo ziba neengxaki. Ngenxa yokuba iivalvu zisisixhobo esibalulekileyo, ngakumbi kwezinye iivalvu ezinkulu, xa kukho ingxaki yokulungiswa okanye ukutshintshwa kuyingxaki. Ngoko ke ukwenza umsebenzi olungileyo wolondolozo lwemihla ngemihla kunye nokugcinwa kubaluleke kakhulu. Makhe sijonge ulwazi oluncinci malunga nokugcinwa kwevalvu.
Iivalvu azisetyenziswa kuphela kumashishini ahlukeneyo, kodwa nakwiindawo ezahlukeneyo zokusetyenziswa. Ezinye iivalvu kwiindawo zokusebenza ezihlwempuzekileyo ziba neengxaki. Ngenxa yokuba iivalvu zisisixhobo esibalulekileyo, ngakumbi kwezinye iivalvu ezinkulu, xa kukho ingxaki yokulungiswa okanye ukutshintshwa kuyingxaki. Ngoko ke ukwenza umsebenzi olungileyo wolondolozo lwemihla ngemihla kunye nokugcinwa kubaluleke kakhulu. Makhe sijonge ulwazi oluncinci malunga nokugcinwa kwevalvu.
1. Ukugcinwa kunye nokuhlolwa kwemihla ngemihla kweevalvu
I-1, i-valve kufuneka igcinwe kwigumbi elomileyo kunye nelomoya, zombini iziphelo zendlela kufuneka zivaliwe.
I-2, ukugcinwa kwexesha elide levalve kufuneka kuhlolwe rhoqo, ukungcola, kunye neoli ye-rust ifakwe kwindawo yokucubungula.
3. Emva kokufakela, ukuhlolwa rhoqo kufuneka kuqhutywe. Izinto eziphambili zokuhlola zezi:
(1) Ukutywinwa komgangatho.
(2) Intambo yetrapezoidal inxiba isiqu kunye ne-stem nut.
(3) ingaba ukupakishwa kuphelelwe lixesha kwaye akukho mthethweni, ukuba konakele, kufuneka kufakwe endaweni yayo ngexesha.
(4) Emva kokugcinwa kwevalve kunye nokudibanisa, uvavanyo lokusebenza lokutywina kufuneka lwenziwe.
Eyesibini, umsebenzi wokulondoloza igrisi yevalvu
Ukugcinwa kobuchwephesha kwevalve phambi kwe-welding nasemva kokuveliswa kudlala indima ebalulekileyo kwimveliso kunye nokusebenza kwevalve. Ukugcinwa okuchanekileyo kunye nokucwangcisiweyo kunye nokusebenzayo kuya kukhusela i-valve, yenza i-valve isebenze ngokuqhelekileyo kwaye yandise ubomi benkonzo ye-valve. Ukugcinwa kwevalve kunokubonakala kulula, kodwa akunjalo. Kukho iinkalo ezininzi zomsebenzi ezingahoywayo.
Igrisi yevalve, kaninzi iyayihoya ingxaki yesixa segrisi. Emva kokuzaliswa kwegrisi, umqhubi ukhetha uxhulumaniso phakathi kwevalve kunye nokuzaliswa kwegrisi, aze aqhube ukuzaliswa kwegrisi. Kukho iimeko ezimbini: kwelinye icala, inani legrisi lingaphantsi kokwaneleyo, kwaye indawo yokutywina inxibe ngokukhawuleza ngenxa yokungabikho kwe-lubricant. Kwelinye icala, inaliti yamafutha amaninzi ibangela inkcitho. Akukho kubalwa ngokuchanekileyo komthamo wokutywina wevalve ngokohlobo lohlobo lwevalve. Ungabala umthamo wokutywina ngobungakanani bevalvu kunye nodidi, kwaye emva koko utofe isixa esifanelekileyo segrisi.
Okwesibini, igrisi yevalve, isoloko ingayihoyi ingxaki yoxinzelelo. Ngexesha lokusebenza kwenaliti ye-lipid, uxinzelelo lwenaliti ye-lipid lunotshintsho oluqhelekileyo lwentlambo. Uxinzelelo luphantsi kakhulu, ukuvuza kwetywina okanye uxinzelelo lokusilela luphezulu kakhulu, indawo yokutofa igrisi ivaliwe, igrisi eselutywinweni iqinisiwe, okanye iringi yokutywina itshixiwe ngebhola yevalve kunye nepleyiti yevalvu. Ngesiqhelo xa uxinzelelo lwenaliti yegrisi lusezantsi kakhulu, igrisi etofiweyo iqukuqela ezantsi kwegumbi levalvu, yenzeka ngokubanzi kwiivalvu zesango ezincinci. Nangona uxinzelelo lwe-grease injection luphezulu kakhulu, kwelinye icala, khangela i-nozzle yegrisi, ukuba umngxuma wegrisi uvaliwe, yitshintshe; Ngakolunye uhlangothi, ukuqina kwe-lipid, ukucoca ulwelo kufuneka kusetyenziswe ukuthambisa ngokuphindaphindiweyo igrisi yetywina engaphumelelanga, kunye nokutofa indawo entsha yegrisi. Ukongeza, uhlobo lwetywina kunye nemathiriyeli yokutywina, ikwachaphazela uxinzelelo lwenaliti, iifom zokutywina ezahlukeneyo zinexinzelelo lwenaliti eyahlukileyo, ngokubanzi, uxinzelelo lwenaliti elukhuni luphezulu kunophawu oluthambileyo.
Yenza lo msebenzi ungentla, ndikholelwa ukuba ukwandisa ubomi benkonzo yevalve kunceda kakhulu, kodwa kunokunciphisa iingxaki ezininzi ezingeyomfuneko.
Iindlela ezintlanu zobugcisa zokujongana nokuvuza kwevalvu
Umzimba wevalvu kunye nokuvuza kwesivalo sevalvu:
Isizathu:
1. Umgangatho wokuphosa wentsimbi ayiphezulu, kwaye kukho i-trachoma, intlangano ekhululekile, ukufakwa kwe-slag kunye nezinye iziphene kumzimba wevalve kunye nomzimba wokuvala ivalve.
2. Intanda ebanda kakhulu;
3. I-welding engafanelekanga, ukufakwa kwe-slag, i-unwelded, i-stress cracks kunye nezinye iziphene;
4. Ivalve yentsimbi eyonakaliswe yimpembelelo yento enzima.
Iindlela zoLondolozo:
1. Ukuphucula umgangatho wokuphosa kwaye uqhube uvavanyo lwamandla ngokungqongqo ngokuhambelana nemimiselo ngaphambi kokufakwa;
2. Kwiivalvu ezinobushushu obuyi-0 ° okanye ngaphantsi, ukugcinwa kobushushu okanye ukuxuba kuya kwenziwa, kwaye amanzi aya kususwa kwiivalvu ezingasebenziyo.
3. I-welds yomzimba kunye ne-valve cover eyenziwe nge-welding iya kuqhutywa ngokuhambelana nemigaqo esebenzayo ye-welding, kwaye ukufumanisa impazamo kunye novavanyo lwamandla luya kuqhutywa emva kwe-welding;
4. Akuvumelekanga ukutyhala kunye nokubeka izinto ezinzima kwi-valve. Akuvumelekanga ukubetha intsimbi etyhidiweyo kunye ne-valve engeyiyo yentsimbi ngesando.
Isibini, ukuvuza kokupakisha (ukuvuza kwevalve, ubungakanani bokupakisha bukhulu kakhulu)
Isizathu:
1. Ukukhethwa kokupakisha akulungile, akuchasananga ne-corrosion ephakathi, engaxhathisi uxinzelelo oluphezulu okanye i-vacuum valve, ukushisa okuphezulu okanye ukusetyenziswa kweqondo lokushisa eliphantsi;
2. Ukupakishwa akufakwanga ngokuchanekileyo, kukho iziphene ezifana nokutshintshela encinci kunye nenkulu, i-helix winding joint ayilungile, i-high tight kunye ne-low loose.
3. Ukupakishwa sele kukhulile kwaye kulahlekelwe u-elasticity ngaphaya kobomi bayo benkonzo
4. Ukuchaneka kwesiqu akuphezulu, ukugoba, ukubola, ukunxiba kunye nezinye iziphene
5. Inani leendandatho zokupakisha alanelanga, i-gland ayicinezeleki;
6. I-Gland, iibholiti, kunye nezinye iindawo zonakaliswe, ukwenzela ukuba i-gland ayikwazi ukuxinzelelwa;
7. Ukusebenza okungafanelekanga, amandla amaninzi, njl.;
8. I-Gland skew, i-gland kunye ne-stem gap incinci kakhulu okanye inkulu kakhulu, ibangela ukuguga, ukupakishwa komonakalo.
Iindlela zoLondolozo:
1. Izinto eziphathekayo kunye nohlobo lokupakisha kufuneka zikhethwe ngokweemeko zokusebenza;
2. Ngokwemimiselo echaphazelekayo yokupakishwa kofakelo oluchanekileyo, ingcambu yepani kufuneka ibekwe kwaye icinezelwe ngokujikelezayo, i-joint kufuneka ibe yi-30℃ okanye i-45℃;
3. Ukupakishwa kunye nobomi obude benkonzo, ukuguga kunye nomonakalo kufuneka kutshintshwe ngexesha;
4. Ukugoba kwe-valve stem, ukunxiba kufuneka kulungiswe, ukulungiswa, umonakalo omkhulu kufuneka utshintshwe ngexesha;
5. Ukupakishwa kufuneka kufakwe ngokwenani elimiselweyo lokujika, i-gland kufuneka ibe yi-symmetrical kwaye iqiniswe ngokulinganayo, umkhono woxinzelelo kufuneka ube ne-gap engaphezulu kwe-5mm yokuqinisa;
6. I-gland eyonakeleyo, iibholithi kunye nezinye iindawo kufuneka zilungiswe okanye zitshintshwe ngexesha;
7. Kufuneka ihambelane neenkqubo zokusebenza, ngaphandle kwempembelelo yesondo lesandla, kunye nesantya esifanayo sokusebenza okuqhelekileyo kwamandla;
8. Ibholithi yegland kufuneka iqiniswe ngokulinganayo kunye ne-symmetrically. Ukuba umsantsa phakathi kwedlala kunye nesiqu sevalvu sincinci kakhulu, isithuba kufuneka sandiswe ngokufanelekileyo. Ukuba umsantsa ophakathi kwedlala nesiqu mkhulu kakhulu, kufuneka utshintshwe.
Ntathu. Ukuvuza kwendawo yokutywina
Isizathu:
I-1, ukutywina umphezulu wokugaya ukungalingani, awukwazi ukwenza umgca osondeleyo;
I-2, uxhulumaniso phakathi kwesiqu kunye nenxalenye yokuvala kwiziko lokumiswa, ayichanekanga okanye inxibe;
I-3, i-valve stem egoba okanye indibano ayichanekanga, ukwenzela ukuba inxalenye yokuvala i-skewed okanye ingabi phakathi;
4. Ukukhetha okungafanelekanga kokutywinwa komgangatho wezinto ezibonakalayo okanye ukungakhethi kwevalve ngokwemiqathango yokusebenza
Iindlela zoLondolozo:
1. Khetha ngokuchanekileyo izinto kunye nohlobo lwe-gasket yokubetha ngokweemeko zokusebenza;
2, ukulungiswa ngononophelo, ukusebenza kakuhle;
I-3, kufuneka ilungelelanise kwaye i-symmetrically screw ibholithi, ukuba kuyimfuneko, kufuneka isebenzise i-wrench ye-torque, i-preload kufuneka ihlangabezane neemfuno, ingabi nkulu kakhulu okanye incinci. I-Flange kunye ne-thread joints kufuneka ibe ne-preload clearance ethile;
I-4, indibano ye-gasket kufuneka idibane neziko, i-force ifana, i-gasket ayivumelekanga ukuba iqhube kwaye isebenzise i-gasket kabini;
I-5, i-static yokutywinwa komphezulu womphezulu, ukusetyenzwa komonakalo, umgangatho wokucubungula awuphezulu, kufuneka ulungiswe, ukugaya, ukuhlolwa kombala, ukwenza umphezulu wokutywina omileyo uhlangabezane neemfuno ezifanelekileyo;
6. Xa ufaka i-gasket, ingqalelo kufuneka ihlawulwe ekucoceni, indawo yokutywina kufuneka i-kerosene icace, kwaye i-gasket ayifanele iwe phantsi.
Isine, ukuvuza koqhagamshelo lomsesane wokutywina
Isizathu:
1, ukutywinwa komsesane wokutywina akungqongqo
2, umsesane wokutywina kunye nokuwelda umzimba, umgangatho wokujonga umbi;
3, umsonto wokutywina wokudibanisa umsesane, isikrufu, umsesane woxinzelelo ukhululekile;
4. Umsesane wokutywina udibaniswe kwaye ugxumeke.
Iindlela zoLondolozo:
1. Ukuvuza kwindawo etywiniweyo kufuneka kulungiswe ngokufaka i-adhesive injecting and rolling;
2. Umsesane wokutywina kufuneka ulungiswe ngokweenkcukacha ze-welding. Xa i-surfacing ingakwazi ukulungiswa, i-surfacing yokuqala kunye nokucubungula kufuneka kuqhutywe;
3. Susa i-screws, uhlambulule ikhonkco loxinzelelo, utshintshe iindawo ezonakalisiweyo, ugaye ukutywinwa kunye nokudibanisa isihlalo esisondeleyo, kwaye udibanise kwakhona. Amalungu anomonakalo omkhulu wokugqwala anokulungiswa ngokudibanisa, ukubopha kunye nezinye iindlela;
4. Indawo yokudibanisa ikhonkco yokutywina i-corroded, enokulungiswa ngokugaya kunye nokudibanisa, kunye nendandatho yokutywina kufuneka ithathelwe indawo xa ingenakulungiswa.
5. Ukuvuza okubangelwa kukuwa kweendawo ezivalayo:
Isizathu:
I-1, ukusebenza kakubi, ukwenzela ukuba isiqwenga sokuvala sinamathele okanye ngaphezu kwendawo efileyo, uxhulumaniso lonakaliswe kwaye luphukile;
2, vala uxhulumaniso aluqinanga, lukhululekile kwaye luyawa;
I-3, ukhetho lwezinto zokudibanisa alulunganga, alukwazi ukumela ukubola kwe-medium and mechanical wear.
Iindlela zoLondolozo:
I-1, ukusebenza okuchanekileyo, ukuvala i-valve ayikwazi ukunyanzela kakhulu, vula i-valve ayinakudlula indawo efileyo, i-valve ivuliwe ngokupheleleyo, i-handwheel kufuneka ibuye umva kancinci;
2. Ukudibanisa phakathi kwendawo yokuvala kunye ne-valve stem kufuneka iqine, kwaye ukudibanisa intambo kufuneka ibe ne-backstop part;
3. Izibophelelo ezisetyenziselwa ukudibanisa iindawo zokuvala kunye ne-valve stem kufuneka zimelane ne-corrosion ye-medium, kwaye zibe namandla athile omatshini kunye nokumelana nokugqoka.