Ivalve ngokuqhubekayo igcina kwaye igqibezela iimfuno zokusebenza ezinikiweyo ngaphakathi kwexesha elithile lokusebenza, kunye nokusebenza kokugcina ixabiso leparameter enikeziweyo ngaphakathi koluhlu oluchaziweyo kubizwa ngokuba yi-failing-free.Xa ukusebenza kwevalve yonakele, kuya kuba Ukungasebenzi kakuhle kuya kwenzeka.
1. Ukugquma kwebhokisi ukuvuza
Lo ngowona mba wokubaleka, ukubaleka, ukuvuza, nokuvuza, kwaye udla ngokubonwa kwimizi-mveliso.
Izizathu zokuvuza kwebhokisi yokuhlohla zezi zilandelayo:
① Izinto eziphathekayo azihambelani nokubola, ubushushu kunye noxinzelelo lwendlela yokusebenza;
②Indlela yokuzalisa ayilunganga, ngakumbi xa ukupakishwa okupheleleyo kufakwe kwi-spiral, kunokwenzeka ukuba kubangele ukuvuza;
③Ukuchaneka komatshini okanye ukugqiba komphezulu wesikhondo sevalvu akwanelanga, okanye kukho ukuqanda, okanye kukho iziqhulo;
④Isikhondo sevalve sifakwe umngxuma, okanye saruswa ngenxa yokungabikho kokhuseleko emoyeni ovulekileyo;
⑤Isiqu sevalve sigobile;
⑥Ukupakishwa kusetyenziswe ixesha elide kwaye kudala;
⑦ Umsebenzi unobundlobongela kakhulu.
Indlela yokuphelisa ukupakisha ukuvuza yile:
① Ukhetho oluchanekileyo lwezihluzi;
②Gcwalisa ngendlela echanekileyo;
③ Ukuba isikhondo sevalvu asifanelekanga, kufuneka silungiswe okanye sitshintshwe, kwaye umphezulu kufuneka ube ▽5, kwaye okona kubaluleke kakhulu, kufuneka ufikelele ▽8 okanye ngaphezulu, kwaye kungabikho ziphene;
④ Thatha amanyathelo okukhusela ukuthintela umhlwa, kwaye ezo ziye zaruswa kufuneka zitshintshwe;
⑤ Ukugotywa kwesiqu sevalve kufuneka kulungiswe okanye kuhlaziywe;
⑥Emva kokuba ukupakisha kusetyenziswe ixesha elithile, kufuneka kutshintshwe;
⑦ Umsebenzi kufuneka uzinze, uvule ngokucothayo kwaye uvale ngokucothayo ukunqanda utshintsho olukhawulezileyo lobushushu okanye ifuthe eliphakathi.
2. Ukuvuza kwamalungu okuvala
Ngokuqhelekileyo, ukuvuza kwebhokisi yokupakisha kubizwa ngokuba kukuvuza kwangaphandle, kwaye inxalenye yokuvala ibizwa ngokuba kukuvuza kwangaphakathi.Ukuvuza kweendawo zokuvala, ngaphakathi kwevalve, akulula ukuyifumana.
Ukuvuza kweendawo zokuvala kunokwahlulwa zibe ziindidi ezimbini: enye kukuvuza komphezulu wokutywina, kwaye enye kukuvuza kwengcambu yomsesane wokutywina.
Izizathu zokuvuza zezi:
① Umphezulu wokutywina awugatywanga kakuhle;
②Iringi yokutywina ayidityaniswa ncam nesitulo sevalvu kunye nediski yevalvu;
③Unxibelelwano phakathi kwediski yevalve kunye nesiqu sevalvu ayiqinanga;
④Isiqu sevalve sigobile kwaye sijijekile, ukuze iindawo zokuvala eziphezulu nezisezantsi zingagxili;
⑤Vala ngokukhawuleza, indawo yokutywina ayidibanisi kakuhle okanye yonakaliswe ixesha elide;
⑥ ukhetho olungafanelekanga lwemathiriyeli, alukwazi ukumelana nokonakala kwendawo;
⑦Sebenzisa ivalve yeglowubhu kunye nevalve yesango njengevalve elawulayo.Umphezulu wokutywina awunako ukumelana nokhukuliseko lwesantya esiphezulu esihambayo;
⑧Eminye imithombo yeendaba iya kuphola ngokuthe ngcembe emva kokuba ivalve ivaliwe, ukuze indawo yokutywina ibonakale i-slits, kunye nokukhukuliseka kuya kwenzeka;
⑨ Uqhagamshelo olunemisonto lusetyenziswa phakathi kweendawo zokutywina kunye nesitulo sevalvu kunye nediski yevalvu, ekulula ukuvelisa umahluko woxinzelelo lweoksijini phakathi kwebhetri kunye nomhlwa;
⑩Ivalve ayinakuvalwa ngokuqinileyo ngenxa yokufakwa kokungcola okunje nge-welding slag, irust, uthuli, okanye iinxalenye zomatshini kwinkqubo yokuvelisa eziwa kwaye zivale i-valve core.
Amanyathelo othintelo ngala:
①Phambi kokusetyenziswa, kufuneka uvavanye ngononophelo uxinzelelo kunye nokuvuza, kwaye ufumane ukuvuza komphezulu wokutywina okanye ingcambu yomsesane wokutywina, emva koko uyisebenzise emva konyango;
②Kuyimfuneko ukujonga kwangaphambili ukuba iindawo ezahlukeneyo zevalve zikwimeko entle.Musa ukusebenzisa ivalve ukuba isiqu sevalve igobile okanye ijijekile okanye idiski yevalve kunye nesiqu sevalvu ayidityaniswanga ngokukhuselekileyo;
③Ivalve kufuneka ivalwe ngokuqinileyo, hayi ngamandla.Ukuba ufumanisa ukuba uqhagamshelwano phakathi kweendawo zokutywina akulungile okanye kukho umqobo, kufuneka uvule ngokukhawuleza ixeshana elincinci ukuze uvumele i-debris iphume, kwaye uyivale ngokucophelela;
④Xa ukhetha ivalve, hayi kuphela ukuxhathisa kokubola kwevalve yomzimba, kodwa kunye nokumelana nokubola kwamalungu okuvala kufuneka kuthathelwe ingqalelo;
⑤ Ngokuhambelana neempawu zesakhiwo sevalve kunye nokusetyenziswa okuchanekileyo, amacandelo afuna ukulungelelanisa ukuhamba kufuneka asebenzise i-valve yokulawula;
⑥ Kwimeko apho isiphakathi sipholile kwaye umahluko wobushushu mkhulu emva kokuvala ivalve, ivalve kufuneka ivalwe ngokuqinileyo emva kokupholisa;
⑦ Xa isihlalo sevalve, i-valve disc kunye nendandatho yokutywina ixhunywe ngentambo, i-PTFE tape ingasetyenziselwa ukupakisha phakathi kweentambo, ukuze kungabikho msantsa;
⑧ Isihluzi kufuneka sifakwe phambi kwevalve yevalve enokuthi iwele kubumdaka.
3. Ukungaphumeleli kokunyuswa kwesiqu se-valve
Izizathu zokusilela ukuphakamisa isikhondo sevalve zezi:
① Umsonto wonakele ngenxa yokusebenza ngokugqithisileyo;
② ukunqongophala kokuthanjiswa okanye ukusilela kwe-lubricant;
③Isikhondo sevalvu igobile kwaye ijijekile;
④Ukugqiba komphezulu awonelanga;
⑤ Ukunyamezelana okufanelekileyo akuchanekanga, kwaye ukuluma kunzima kakhulu;
⑥I-valve stem nut ijikile;
⑦ Ukukhethwa kwezinto ezingafanelekanga, umzekelo, i-valve stem kunye ne-valve stem nut zenziwe ngezinto ezifanayo, ekulula ukuziluma;
⑧ Umsonto udliwe ngumbindi (ubhekisa kwivalve enevalve yesikhondo esimnyama okanye ivalve ene-stem nut ezantsi);
⑨Ivalve yomoya ovulekileyo ayinakhuseleko, kwaye umsonto wesikhondo wevalve wogqunywa luthuli nesanti, okanye uruswe yimvula, umbethe, iqabaka nekhephu.
Iindlela zokuthintela:
① Ukusebenza ngononophelo, unganyanzeli xa uvala, ungafikeleli kwindawo ephezulu yokufa xa uvula, jika i-handwheel ibe nye okanye kabini emva kokuvula ngokwaneleyo ukwenza icala eliphezulu lomsonto livale, ukuze uthintele i-medium ekutyhale ivalve. nyukela phezulu ukuya kwimpembelelo;
②Jonga imeko yokuthambisa rhoqo kwaye ugcine imeko yesiqhelo yokuthambisa;
③Sukuvula kwaye uvale ivalve ngelever ende.Abasebenzi abaqhele ukusebenzisa i-lever emfutshane kufuneka balawule ngokungqongqo umthamo wamandla okuthintela ukujija i-valve stem (ebhekisa kwivalve edityaniswe ngokuthe ngqo nevili lesandla kunye nesiqu sevalve);
④Phucula umgangatho wokusetyenzwa okanye ukulungisa ukuhlangabezana neemfuno ezibaluliweyo;
⑤ Izinto eziphathekayo kufuneka zixhathise kwi-corrosion kwaye zivumelane nobushushu bokusebenza kunye nezinye iimeko zokusebenza;
⑥Isikhondo se-valve nut akufuneki senziwe ngento enye nesikhondo sevalvu;
⑦ Xa usebenzisa iplastiki njenge-valve stem nut, amandla kufuneka ahlolwe, kungekhona nje ukuxhathisa okulungileyo kwe-corrosion kunye ne-coefficient encinci ye-friction, kodwa kunye nengxaki yamandla, ukuba amandla awanele, ungayisebenzisi;
⑧Isigqubuthelo sokukhusela isiqu sevalve kufuneka songezwe kwivalve yomoya evulekileyo;
⑨ Kwivalvu yesiqhelo evulekileyo, jija ivili lesandla rhoqo ukunqanda isiqu sevalve ekuruseni.
4. Okunye
Ukuvuza kweGasket:
Isizathu esona sizathu kukuba ayinakumelana nokubola kwaye ayihambisani nokushisa okusebenzayo kunye noxinzelelo;kunye nokutshintsha kobushushu bevalve ephezulu yobushushu.
Sebenzisa iigaskets ezifanelekileyo kwiimeko zokusebenza.Khangela ukuba izinto zegasket zifanelekile kwiivalvu ezintsha.Ukuba ayifanelekanga, kufuneka itshintshwe.Kwiivalvu eziphezulu zokushisa, qinisa iibholithi kwakhona ngexesha lokusetyenziswa.
Umzimba wevalvu eqhekekileyo:
Ngokuqhelekileyo kubangelwa kukukhenkceza.Xa imozulu ibanda, ivalve kufuneka ibe ne-thermal insulation kunye nemilinganiselo yokulandelela ubushushu.Kungenjalo, amanzi akwivalvu kunye nombhobho odibanisayo kufuneka ukhutshwe emva kokuba umveliso umisiwe (ukuba kukho iplagi emazantsi evalve, iplagi inokuvulwa ukuze ikhuphe amanzi).
Ivili lesandla elonakeleyo:
Ibangelwa yimpembelelo okanye ukusebenza okunamandla kwe-lever ende.Inokuphetshwa nje ukuba umqhubi kunye nabanye abasebenzi abachaphazelekayo banikele ingqalelo.
Idlala lokupakisha laphukile:
Amandla angalinganiyo xa ucinezela ukupakisha, okanye indlala enesiphene (idla ngokuba yintsimbi).Cinezela ukupakisha, jikelisa isikrufu ngokulinganayo, kwaye ungajiki.Xa kuveliswa, akufuneki kuphela ukunikela ingqalelo kwiindawo ezinkulu kunye neziphambili, kodwa kwakhona uhlawule ingqalelo kwiindawo zesibini ezifana neengqungquthela, ngaphandle koko kuya kuchaphazela ukusetyenziswa.
Umdibaniso phakathi kwesikhondo sevalve kunye nepleyiti yevalve ayiphumeleli:
I-valve yesango ithatha iindlela ezininzi zokudibanisa phakathi kwentloko ye-rectangular ye-valve stem kunye ne-T-shaped groove yesango, kunye ne-T-shaped groove ngamanye amaxesha ayicutshungulwa, ngoko ke intloko yoxande ye-valve stem inxiba ngokukhawuleza.Ikakhulu kwinkalo yokwenziwa kokwenziwa kwesisombululo.Nangona kunjalo, umsebenzisi unokwenza i-groove emile okwe-T ukuyenza ibe nokuguda okuthile.
Isango levalve yesango eliphindwe kabini alikwazi ukucinezela isigqubuthelo ngokuqinileyo:
Ukuxinezeleka kwesango eliphindwe kabini kuveliswa yi-wedge ephezulu.Kwezinye iivalve zesango, i-wedge ephezulu yenziwe ngezinto ezimbi (i-low-grade cast iron iron), kwaye iya kunxitywa okanye yaphulwe ngokukhawuleza emva kokusetyenziswa.I-wedge ephezulu yincinci encinci, kwaye izinto ezisetyenzisiweyo azininzi.Umsebenzisi angayenza nge-carbon steel kwaye athathe indawo yentsimbi yokuqala.
Ixesha lokuposa: Apr-18-2022