Ukugcinwa kwe-valve nokusebenza kwedivayisi kagesi ye-valve izinketho eziyisithupha

Ukugcinwa kwe-valve nokusebenza kwedivayisi kagesi ye-valve izinketho eziyisithupha

Unganciki ku-valve ukusekela ezinye izinto ezinzima futhi ungami ku-valve. Isiqu, ikakhulukazi izingxenye zentambo, kufanele zisulwe kaningi, izithambisi zibe uthuli olungcolile esikhundleni esisha, ngoba uthuli luqukethe imfucumfucu eqinile, intambo elula yokugqoka kanye ne-stem surface, ithinta impilo yesevisi. Vula futhi uvale i-valve, amandla kufanele abe bushelelezi, angabi nomthelela. Okunye ukuvulwa komthelela nokuvalwa kwezingxenye ze-valve yomfutho ophezulu kucabangele amandla omthelela kanye ne-valve evamile ayikwazi ukulinda. Ukuze i-valve ye-steam, ngaphambi kokuvula, kufanele ishiswe kusengaphambili futhi amanzi ahlanganisiwe kufanele akhishwe. Lapho uvula, kufanele kube kancane ngangokunokwenzeka ukuze ugweme ukwenzeka kwesiteleka samanzi.
Ukugcinwa kwe-valve, kungahlukaniswa ngamacala amabili; Enye iwukugcinwa kwesitoreji, enye iwukulungisa ukusetshenziswa.
(I) Ukugcina nokunakekela
Inhloso yokugcina nokugcinwa akukona ukulimaza i-valve endaweni yokugcina, noma ukunciphisa ikhwalithi. Eqinisweni, ukugcinwa okungalungile kungenye yezizathu ezibalulekile zokulimala kwe-valve.
Isitoreji se-valve, kufanele sihleleke kahle, ama-valve amancane eshalofini, ama-valve amakhulu angahlelwa kahle endaweni yokugcina impahla, hhayi ukupakisha okungahlelekile, ungavumeli indawo yokuxhumana ye-flange ithintane nomhlabathi. Lokhu akukona nje okobuhle, ikakhulukazi ukuvikela i-valve emonakalweni. Ngenxa yokugcinwa nokuphathwa ngendlela engafanele, isondo lesandla eliphukile, i-stem tilt, isondo lesandla kanye ne-stem fixed nut ukulahlekelwa okuxekethile, njll., lokhu kulahlekelwa okungadingekile kufanele kugwenywe.
Kuvalvu engasetshenziswa okwesikhashana esikhathini esifushane, ukupakishwa kwe-asbestos kufanele kususwe ukuze kugwenywe ukugqwala kwe-electrochemical kanye nokulimala kwesiqu.
I-valve ingena nje endaweni yokugcina impahla, ukuhlola, njengalapho ithuthwa iyiswa emvuleni noma ebhuqwini, ukuze isule, bese igcinwa.
I-valve yokungena kanye ne-outlet kufanele ivalwe ngephepha le-wax noma ishidi lepulasitiki ukuvimbela ukungcola ukuthi kungangeni.
Indawo yokucubungula i-valve ekwazi ukugqwala emkhathini kufanele igcotshwe ngamafutha e-anti-rust ukuze ivikeleke.
Ama-valve angaphandle kufanele ambozwe ngezinto ezivimbela imvula kanye nezinto ezingangeni uthuli njenge-linoleum noma i-tarp. Indawo lapho kugcinwa khona i-valve kufanele igcinwe ihlanzekile futhi yomile.
(2) Ukusetshenziswa nokugcinwa
Inhloso yokusetshenziswa nokugcinwa kwe-valve ukwandisa impilo yesevisi ye-valve nokuqinisekisa ukuvulwa nokuvalwa okuthembekile.
Imicu ye-stem, ngokuvamile ehambisana nokungqubuzana kwe-stem nut, ukuze kugcotshwe amafutha amancane aphuzi owomile, i-molybdenum disulfide noma impushana yegraphite, ukuze kugcotshiswe.
Ungavamisi ukuvula nokuvala i-valve, kodwa futhi ukuguqula njalo isondo lesandla, engeza i-lubricant kumcu we-stem, ukuvimbela ukuluma.
Kuma-valve angaphandle, imikhono evikelayo kufanele yengezwe esiqwini se-valve ukuvimbela imvula, iqhwa, uthuli nokugqwala.
Uma i-valve ingumshini, engeza amafutha okugcoba ku-gearbox ngesikhathi. Njalo gcina i-valve ihlanzekile.
Hlola futhi ugcine ubuqotho bezinye izingxenye ze-valve njalo. Uma i-nati ehleliwe ye-handwheel iwa, kufanele ifaniswe futhi ayikwazi ukusetshenziswa kahle, ngaphandle kwalokho izogaya ingxenye yesikwele engxenyeni engenhla ye-valve stem, kancane kancane ilahlekelwe ukwethembeka futhi ngisho ayikwazi ukuqala.
Unganciki ku-valve ukusekela ezinye izinto ezinzima futhi ungami ku-valve. Isiqu, ikakhulukazi izingxenye zentambo, kufanele zisulwe kaningi, izithambisi zibe uthuli olungcolile esikhundleni esisha, ngoba uthuli luqukethe imfucumfucu eqinile, intambo elula yokugqoka kanye ne-stem surface, ithinta impilo yesevisi.
ukusebenza
Ukuze ama-valve, akufanele nje akwazi ukufaka nokugcina, kodwa futhi asebenze.
(a) ukuvulwa nokuvala kwevalvu ngesandla
I-valve yezandla iyivalvu esetshenziswa kakhulu, isondo layo lesandla noma isibambo, iklanywe ngokuhambisana nabasebenzi abajwayelekile, kucatshangelwa amandla angaphezulu okuvala kanye namandla okuvala adingekayo. Ngakho awukwazi ukusebenzisa i-lever ende noma isipina eside. Abanye abantu bajwayele ukusebenzisa isikrufu, kufanele banake kakhulu, hhayi amandla amaningi kakhulu, ngaphandle kwalokho kulula ukulimaza indawo yokuvala, noma isondo eliphukile lesandla, isibambo.
Vula futhi uvale i-valve, amandla kufanele abe bushelelezi, angabi nomthelela. Okunye ukuvulwa komthelela nokuvalwa kwezingxenye ze-valve yomfutho ophezulu kucabangele amandla omthelela kanye ne-valve evamile ayikwazi ukulinda. Ukuze i-valve ye-steam, ngaphambi kokuvula, kufanele ishiswe kusengaphambili futhi amanzi ahlanganisiwe kufanele akhishwe. Lapho uvula, kufanele kube kancane ngangokunokwenzeka ukuze ugweme ukwenzeka kwesiteleka samanzi. Lapho i-valve ivuliwe ngokugcwele, i-handwheel kufanele iguqulwe kancane, ukuze intambo phakathi kwe-tight, ukuze ingakhululeki umonakalo.
Kumavalvu esiqu esiyisigxobo, khumbula ukuma kwesiqu lapho sivuleke ngokugcwele futhi sivaleke ngokugcwele, ukuze ugweme ukushaya indawo efile ephezulu lapho ivuleke ngokugcwele. Futhi kulula ukuhlola ukuthi ijwayelekile yini uma ivalwe ngokugcwele. Uma i-valve iwa, noma phakathi kwe-spool seal ishumekwe imfucumfucu emikhulu, indawo yesiqu izoshintsha lapho ivalwe ngokugcwele.
Lapho ipayipi liqala ukusetshenziswa, kukhona ukungcola kwangaphakathi okwengeziwe, i-valve ingavulwa kancane, ukugeleza kwesivinini esiphezulu se-medium kungasetshenziswa ukuyigeza, bese ivalwa kahle (hhayi ivalwe ngokushesha, ivalwe ngonya, ukuvimbela ukungcola okusele ekubambeni indawo evalwayo), vula futhi, ngokuphindaphindiwe kaningi, geza ukungcola, bese ufaka emsebenzini ojwayelekile. Ngokuvamile vula i-valve, kungase kube nokungcola endaweni yokuvala. Lapho uvala, le ndlela engenhla kufanele futhi isetshenziselwe ukuyigeza ihlanzeke, bese ivala ngokusemthethweni.
Uma i-handwheel nesibambo sonakalisiwe noma silahlekile, kufanele sigcwaliswe ngokushesha, futhi asikwazi ukushintshwa yizandla zepuleti ezihambayo, ukuze zingalimazi i-quartet ye-stem, ukuvulwa nokuvala akuphumelelanga, okuholela ezingozini ekukhiqizeni. Eminye imidiya, ipholile ngemva kokuba i-valve ivaliwe, ukuze izingxenye ze-valve zinciphe, opharetha kufanele aphinde avaliwe ngesikhathi esifanele,
Vumela indawo yokuvala ingashiyi i-seam, ngaphandle kwalokho, i-medium egeleza isuka ku-seam ngesivinini esikhulu, kulula ukuqeda indawo yokuvala.
Ngesikhathi sokusebenza, uma kutholakala ukuthi ukusebenza kunzima kakhulu, imbangela kufanele ihlaziywe. Uma ukupakisha kuqinile kakhulu, kungakhululeka kahle, njenge-valve stem skew, kufanele yazise abasebenzi ukuthi balungise. Amanye ama-valve, esimweni esivaliwe, izingxenye ezivaliwe zinweba ukushisa, okuholela ebunzimeni bokuvula; Uma kufanele ivulwe ngalesi sikhathi, ikhava kungenziwa unscrew uhhafu umbuthano indilinga ukuqeda ukucindezeleka stem, bese ipuleti ukuqala isondo.
(2) Izindaba ezidinga ukunakwa
I-1, 200 ℃ ngaphezu kwe-valve yokushisa ephezulu, ngenxa yokufakwa ekamelweni lokushisa, futhi ngemva kokusetshenziswa okujwayelekile, ukuphakama kwezinga lokushisa, ukukhushulwa kokushisa kwebhawodi, ukwanda kwegebe, ngakho-ke kufanele kuqiniswe futhi, okubizwa ngokuthi “i-hot tight”, opharetha kufanele banake lokhu. ukusebenza, uma kungenjalo kujwayele ukuvuza.
2. Uma isimo sezulu sibanda, i-valve yamanzi kufanele ivalwe isikhathi eside, futhi amanzi kufanele akhishwe ngemva kwe-valve. I-valve ye-steam ngemuva kwe-steam, nayo ifuna ukukhipha i-condensate. Iphansi le-valve linosilika futhi lingavulwa ukuze likhiphe amanzi.
I-3, ama-valve angewona ensimbi, amanye aqinile futhi aqatha, amanye amandla aphansi, ukusebenza, amandla avulekile futhi aseduze angeke abe mkhulu kakhulu, ikakhulukazi awakwazi ukwenza amandla aqinile. Qaphela futhi ukuthi ungangqongqozi izinto.
I-4, lapho i-valve entsha isetshenziswa, ukupakisha akufanele kucindezelwe kakhulu, ukuze kungavuzi, ukuze ungacindezeli isiqu kakhulu, ukusheshisa ukugqoka, futhi kanzima ukuvula nokuvala.
Isisekelo sokukhetha esiyisithupha sedivayisi kagesi ye-valve
Ukukhetha okulungile kwedivayisi kagesi ye-valve kufanele kusekelwe kulokhu:
1. Itorque esebenzayo: Itorque esebenzayo iyipharamitha eyinhloko yokukhetha idivayisi kagesi yevalvu. I-torque ephumayo yedivayisi kagesi kufanele ibe izikhathi ezingu-1.2 ~ 1.5 zetorque enkulu yokusebenza kwevalvu.
2. I-Operation thrust: kunezinhlaka ezimbili zomshini eziyinhloko zedivayisi kagesi ye-valve, eyodwa ayinayo i-thrust plate, futhi i-torque iphuma ngokuqondile ngalesi sikhathi; Enye ifakwe i-thrust disc, lapho i-torque yokukhiphayo iguqulwa ibe i-thrust ephumayo nge-stem nut ye-thrust disc.
3. Inombolo yokuzungezisa ye-shaft ephumayo: inombolo yenombolo yokuzungezisa ye-shaft ephumayo yedivayisi kagesi ye-valve ihlobene nobubanzi obujwayelekile be-valve, i-valve stem pitch kanye nenani lezintambo, ezibalwa ngokuvumelana ne-M=H/ZS (in ifomula: M iyinani eliphelele lokuzungezisa idivayisi kagesi okufanele ihlangane no-H ukuphakama kokuvula kwe-valve, mm i-pitch ye-valve stem drive, mm i-Z iyinombolo yezintambo ze-stem.
4. Ububanzi be-stem: kuhlobo lokujikeleza okuningi kwe-valve ye-stem evulekile, uma ububanzi be-stem obukhulu obuvunyelwe idivayisi kagesi bungakwazi ukudlula isiqu se-valve, asikwazi ukubuthelwa ku-valve kagesi. Ngakho-ke, ububanzi bangaphakathi bomgodi wokuphuma ongenalutho wedivayisi kagesi kufanele bube bukhulu kunobubanzi obungaphandle besiqu se-valve ye-stem evulekile. Kwamanye ama-valve ajikelezayo kanye nama-valve amaningi ajikelezayo ku-valve yenduku emnyama, nakuba ungacabangi ububanzi be-stem ngenkinga, kodwa ekukhetheni kufanele futhi kubhekwe ngokugcwele ububanzi be-stem kanye nobukhulu bokhiye, ukuze umhlangano usebenze ngokujwayelekile.
Isivinini sokuphuma kwe-5: isivinini sokuvula nokuvala i-valve siyashesha, kulula ukukhiqiza into yesiteleka samanzi. Ngakho-ke, ngokwemibandela ehlukene yokusetshenziswa, khetha isiqalo esifanele nesivinini esiseduze.
6. Imodi yokufaka nokuxhuma: imodi yokufaka idivayisi kagesi ihlanganisa ukufakwa okuqondile, ukufakwa okuvundlile nokufakwa phansi; Imodi yokuxhuma: i-thrust plate; I-valve iphuma phakathi (i-stem multi-turn valve); Induku emnyama ukuzungezisa okuningi; Ayikho i-thrust plate; Isiqu se-valve asidluli; Ingxenye yedivayisi kagesi ejikelezayo isetshenziswa kabanzi, iwukubona isilawuli sohlelo lwe-valve, isilawuli esizenzakalelayo kanye nemishini edingekayo elawulwa kude, esetshenziswa kakhulu kuvalvu wesifunda evaliwe. Kodwa-ke, izidingo ezikhethekile zedivayisi kagesi ye-valve kumele zikwazi ukukhawulela i-torque noma i-axial force. Ngokuvamile idivayisi kagesi ye-valve isebenzisa i-torque ekhawulela i-coupling.