Ukugcinwa kwevalvu kunye nokusebenza kwesixhobo sombane sevalve iindlela ezintandathu

Ukugcinwa kwevalvu kunye nokusebenza kwesixhobo sombane sevalve ukhetho oluthandathu Musa ukuthembela kwivalvu ukuxhasa ezinye izinto ezinzima kwaye ungami kwivalve. Isiqu, ngokukodwa iinxalenye zentambo, kufuneka zicinywe rhoqo, i-lubricants ibe luthuli olungcolileyo ukuze luthathe indawo entsha, kuba uthuli luqulethe i-debris enzima, kulula ukuyinxiba intambo kunye ne-stem surface, ichaphazela ubomi benkonzo. Vula kwaye uvale i-valve, amandla kufuneka alula, angabi nempembelelo. Ezinye iimpembelelo zokuvula kunye nokuvalwa kweengxenye zevalve yoxinzelelo oluphezulu zithathele ingqalelo amandla empembelelo kunye nevalve jikelele ayinakulinda. Kwi-valve ye-steam, ngaphambi kokuvula, kufuneka ifudunyezwe kwangaphambili kwaye amanzi adibeneyo kufuneka angabandakanywa. Xa uvula, kufuneka kube ngokucotha kangangoko kunokwenzeka ukuphepha isenzeko sogwayimbo lwamanzi. Ukugcinwa kweValve, kunokwahlulwa kumatyala amabini; Enye kukugcina ukugcinwa, enye kukugcinwa kokusetyenziswa. (I) Ukugcinwa kunye nokugcinwa Injongo yokugcina kunye nokugcinwa akukona ukonakalisa ivalve kwindawo yokugcina, okanye ukunciphisa umgangatho. Enyanisweni, ukugcinwa okungafanelekanga sesinye sezizathu ezibalulekileyo zokulimala kwevalve. Ukugcinwa kwevalve, kufuneka kube ngokufanelekileyo, iivalve ezincinci kwishelufu, iivalve ezinkulu zinokucwangciswa ngokucocekileyo kumhlaba wogcino, hayi ukupakisha ngokungacwangciswanga, ungavumeli umphezulu wonxibelelwano lweflange uqhagamshelane nomhlaba. Oku akukona nje i-aesthetics, ngokukodwa ukukhusela i-valve kumonakalo. Ngenxa yokugcinwa kunye nokuphathwa ngendlela engafanelekanga, ivili lesandla eliphukileyo, i-stem tilt, i-handwheel kunye ne-stem fixed nut ilahleko ekhululekile, njl., ezi lahleko zingeyomfuneko kufuneka ziphetshwe. Kwivalve engasetyenziswanga okwethutyana, ukupakishwa kwe-asbestos kufuneka kususwe ukuphepha ukubola kwe-electrochemical kunye nomonakalo kwisiqu. Ivalve kwindawo yokugcina, ukujonga, njengenkqubo yothutho kwimvula okanye ukungcola, ukusula ucoceko, kwaye emva koko ukugcinwa. Indawo yokungena ivelufa kunye nendawo yokuphuma kufuneka ivalwe ngephepha lewax okanye ngeplastiki ukunqanda ukungcola ukuba kungangeni. Umphezulu wokusetyenzwa kwevalvu onokurusa emoyeni kufuneka uqatywe nge-oyile echasene nomhlwa ukuwukhusela. Iivalvu zangaphandle kufuneka zogqunywe ngokhuselo lwemvula kunye nezixhobo ezingangenwa luthuli ezifana nelinoliyam okanye itarp. Indawo yokugcina ivalve iya kugcinwa icocekile kwaye yomile. (2) Ukusetyenziswa kunye nokugcinwa Injongo yokusetyenziswa kunye nokugcinwa kukwandisa ubomi benkonzo yesivalo kunye nokuqinisekisa ukuvulwa nokuvala okuthembekileyo. Imisonto yesikhondo, ekholisa ukukhuhlana kwe-stem nut, ukufaka i-oyile encinci emthubi eyomileyo, i-molybdenum disulfide okanye umgubo wegraphite, ukuthambisa. Ungadli ngokuvula kwaye uvale ivalve, kodwa kwakhona ukuguqula rhoqo ivili lesandla, yongeza i-lubricant kwintambo ye-stem, ukukhusela ukuluma. Kwiivalve zangaphandle, imikhono yokukhusela kufuneka yongezwe kwi-valve stem ukukhusela imvula, ikhephu, uthuli kunye nomhlwa. Ukuba ivalve ingumatshini, yongeza ioyile yokuthambisa kwibhokisi yegiya ngexesha. Gcina ivalve icocekile ngalo lonke ixesha. Hlola kwaye ugcine imfezeko yamanye amalungu evalvu rhoqo. Ukuba i-nut emiselweyo ye-handwheel iyawa, kufuneka ihambelane kwaye ayikwazi ukusetyenziswa ngokufanelekileyo, ngaphandle koko iya kugaya inxalenye yesikwele yendawo ephezulu ye-valve stem, ngokuthe ngcembe ilahlekelwe ukuthembeka kwaye ingakwazi ukuqala. Musa ukuthembela kwivalve ukuxhasa ezinye izinto ezinzima kwaye ungami kwivalve. Isiqu, ngokukodwa iinxalenye zentambo, kufuneka zicinywe rhoqo, i-lubricants ibe luthuli olungcolileyo ukuze luthathe indawo entsha, kuba uthuli luqulethe i-debris enzima, kulula ukuyinxiba intambo kunye ne-stem surface, ichaphazela ubomi benkonzo. ukusebenza Kwiivalve, akufuneki kuphela ukuba ikwazi ukufaka kunye nokugcina, kodwa nokusebenza. (a) Ukuvula nokuvala isivalo sevalve ngesandla sesona sivalufa sisetyenziswa kakhulu, ivili laso lesandla okanye isiphatho, siyilwe ngokuhambelana nabasebenzi abaqhelekileyo, kuthathelwa ingqalelo amandla omphezulu wokutywina kunye namandla okuvala ayimfuneko. Ngoko awukwazi ukusebenzisa i-lever ende okanye i-spinner ende. Abanye abantu baqhele ukusebenzisa isikrufu, kufuneka banikele ingqalelo engqongqo, hayi amandla kakhulu, kungenjalo kulula ukonakalisa umphezulu wokutywina, okanye ivili lesandla elaphukileyo, umqheba. Vula kwaye uvale i-valve, amandla kufuneka alula, angabi nempembelelo. Ezinye iimpembelelo zokuvula kunye nokuvalwa kweengxenye zevalve yoxinzelelo oluphezulu zithathele ingqalelo amandla empembelelo kunye nevalve jikelele ayinakulinda. Kwi-valve ye-steam, ngaphambi kokuvula, kufuneka ifudunyezwe kwangaphambili kwaye amanzi adibeneyo kufuneka angabandakanywa. Xa uvula, kufuneka kube ngokucotha kangangoko kunokwenzeka ukuphepha isenzeko sogwayimbo lwamanzi. Xa i-valve ivulekile ngokupheleleyo, i-handwheel kufuneka iguqulwe kancinane, ukwenzela ukuba intambo phakathi kwe-tight, ukuze ingakhululeki umonakalo. Kwiivalvu ze-pole-stem, khumbula ukuma kwesiqu xa sivuleke ngokupheleleyo kwaye sivalwe ngokupheleleyo, ukunqanda ukubetha indawo efileyo ephezulu xa ivuleke ngokupheleleyo. Kwaye kulungele ukujonga ukuba iyinto eqhelekileyo xa ivaliwe ngokupheleleyo. Ukuba ivalve iyawa, okanye phakathi kwesitywina sespool kufakwe inkunkuma enkulu, indawo yesiqu iya kutshintsha xa ivalwe ngokupheleleyo. Xa umbhobho usetyenziswa okokuqala, kukho ukungcola okungaphezulu kwangaphakathi, ivalve inokuvulwa kancinci, isantya esiphezulu sokuhamba kwesixhobo singasetyenziselwa ukuyihlamba, kwaye emva koko ivalwe ngobunono (ayivalwanga ngokukhawuleza, ivalwe ngokukrakra, ukunqanda. ukungcola okushiyekileyo ekubambeni umphezulu wokutywina), vula kwakhona, phinda-phinda amaxesha amaninzi, hlamba ukungcola, emva koko ubeke kumsebenzi wesiqhelo. Ngokuqhelekileyo uvule i-valve, kunokubakho ukungcola kwindawo yokutywina. Xa uvala, le ndlela ingentla kufuneka isetyenziswe kwakhona ukuyihlamba icocekile, kwaye emva koko ivale ngokusemthethweni. Ukuba i-handwheel kunye nesibambo zonakalisiwe okanye zilahlekile, kufuneka zigqitywe ngokukhawuleza, kwaye azikwazi ukutshintshwa zizandla zepleyiti ezihambayo, ukuze zingonakalisi i-quartet ye-stem, ukuvulwa kunye nokuvala akusebenzi, kubangele iingozi kwimveliso. Enye imidiya, ipholile emva kokuba ivalve ivaliwe, ukwenzela ukuba iindawo zevalve ziyancipha, umqhubi kufuneka aphinde avaliwe ngexesha elifanelekileyo, Vumela indawo yokutywina ingashiyi umthungo, ngaphandle koko, i-medium egeleza isuka kwi-seam ngesantya esiphezulu. kulula ukukhukulisa umphezulu wokutywina. Ngethuba lokusebenza, ukuba kufunyenwe ukuba umsebenzi unzima kakhulu, isizathu kufuneka sihlalutye. Ukuba ukupakisha kuqinile kakhulu, kunokukhululeka ngokufanelekileyo, njenge-valve stem skew, kufuneka ixelele abasebenzi ukuba balungise. Ezinye iivalve, kwimeko evaliweyo, iindawo ezivaliweyo zifudumala ukwandiswa, okubangela ubunzima bokuvula; Ukuba kufuneka ivulwe ngeli xesha, isigqubuthelo sinokukhutshwa kwisiqingatha sesangqa ukuya kwisangqa ukuphelisa uxinzelelo lwesiqu, kwaye ke ipleyiti ukuqalisa ivili. (2) Imiba efuna ingqwalasela 1, 200℃ ngaphezu kwevalve yobushushu obuphezulu, ngenxa yofakelo kwiqondo lobushushu legumbi, kwaye emva kokusetyenziswa okuqhelekileyo, ukunyuka kwamaqondo obushushu, ukwandiswa kobushushu bebholiti, ukwanda komsantsa, ngoko kufuneka kuqiniswe kwakhona, okubizwa ngokuba yi "tight eshushu", abaqhubi kufuneka banikele ingqalelo kulo msebenzi, kungenjalo bathande ukuvuza. 2. Xa imozulu ibanda, i-valve yamanzi kufuneka ivalwe ixesha elide, kwaye amanzi kufuneka asuswe emva kwevalve. Ivalve yomphunga emva komphunga, nayo ifuna ukungabandakanyi i-condensate. Umzantsi wevalve unesilika kwaye unokuvulwa ukuze ukhuphe amanzi. I-3, i-valve e-non-metallic, i-valve eqinile kunye ne-brittle, amandla athile aphantsi, ukusebenza, amandla avulekileyo kunye avaliweyo angeke abe mkhulu kakhulu, ngakumbi akakwazi ukwenza amandla anamandla. Ukwalumkele ukunkqonkqoza izinto. I-4, xa i-valve entsha isetyenzisiweyo, ukupakishwa akufuneki kucinezele kakhulu, ukuze kungavuzi, ukuze unganyanzelisi isiqu kakhulu, ukukhawuleza ukuguga, kwaye kunzima ukuvula nokuvala iziseko ezithandathu ezikhethiweyo zesixhobo sombane. Ukhetho oluchanekileyo lwesixhobo sombane sevalve kufuneka lusekelwe: 1. Itorque yokusebenza: Itorque esebenzayo yeyona parameter iphambili yokukhetha isixhobo sombane sevalve. I-torque ephumayo yesixhobo sombane kufuneka ibe yi-1.2 ~ 1.5 amaxesha e-torque enkulu yokusebenza kwevalve. 2. I-Operation thrust: kukho izinto ezimbini eziphambili zomatshini we-valve yesixhobo sombane, enye ayixhotyiswanga nge-thrust plate, kwaye i-torque iphuma ngokuthe ngqo ngeli xesha; Enye ixhotyiswe nge-disc ye-thrust, apho i-torque yemveliso iguqulwa ibe yi-output thrust ngokusebenzisa i-stem nut ye-thrust disc. 3. Inani lokujikeleziswa kweshafti ephumayo: inani lenani lokujikeleza kweshafti ephumayo yesixhobo sombane sevalve linxulumene nedayamitha yegama levalve, isiqu sevalve pitch kunye nenani lemisonto, ibalwe ngokwe-M=H/ZS (in i-formula: M yinombolo yokujikeleza efunekayo ukuba isixhobo sombane sihlangane no-H ubude bokuvulwa kwevalve, mm i-pitch ye-valve stem drive, mm; . I-Stem diameter: ye-multi-rotation ye-valve ye-stem evulekileyo, ukuba i-stem diameter enkulu evunyelwe yisixhobo sombane ayikwazi ukudlula i-valve stem, ayikwazi ukuhlanganiswa kwivalve yombane. Ngoko ke, i-diameter yangaphakathi ye-hollow output shaft yesixhobo sombane kufuneka ibe mkhulu kunobubanzi obungaphandle besiqu se-valve ye-stem evulekileyo. Kwezinye iivalve ezijikelezayo kunye ne-multi-rotary valves kwi-valve yentonga emnyama, nangona ungaqwalaseli ububanzi be-stem ngengxaki, kodwa ekukhetheni kufuneka kuqwalaselwe ngokupheleleyo ububanzi be-stem kunye nobukhulu be-keyway, ukwenzela ukuba indibano isebenze ngokuqhelekileyo. Isantya semveliso ye-5: ukuvulwa kwevalve kunye nesantya sokuvala sikhawuleza, kulula ukuvelisa into yokubetha kwamanzi. Ke ngoko, ngokweemeko ezahlukeneyo zokusetyenziswa, khetha isiqalo esifanelekileyo kunye nesantya esisondeleyo. 6. Ukufakela kunye nemodi yokudibanisa: imodi yokufakela isixhobo sombane ibandakanya ukufakwa ngokuthe nkqo, ukufakwa okuthe tye kunye nokufakwa komhlaba; Imowudi yoqhagamshelo: ipleyiti yokutyhala; Isiqu sevalve (i-stem multi-turn valve); intonga emnyama ukujikeleza okuphindaphindiweyo; Akukho pleyiti yokutyhala; Isiqu se-valve asidluli; Inxalenye yesixhobo sombane esijikelezayo sisetyenziswa ngokubanzi, kukuqonda ulawulo lwenkqubo yevalve, ulawulo oluzenzekelayo kunye nolawulo olukude izixhobo eziyimfuneko, ezisetyenziswa ikakhulu kwivalve yesekethe evaliweyo. Nangona kunjalo, iimfuno ezikhethekileyo zesixhobo sombane se-valve kufuneka sikwazi ukukhawulela i-torque okanye i-axial force. Ngokuqhelekileyo isixhobo sombane sevalve sisebenzisa itorque yokunciphisa ukudibanisa.