Ukuhlolwa kokuvuza kokuhlolwa kwengcindezi ye-valve kanye nendlela yokusebenza yesifunda se-valve izinga lokwabelana

Ukuhlolwa kokuvuza kokuhlolwa kwengcindezi ye-valve kanye nendlela yokusebenza yesifunda se-valve izinga lokwabelana

Lapho ipayipi liqala ukusetshenziswa, kukhona ukungcola kwangaphakathi okwengeziwe, ii-valve ingavulwa kancane, ukugeleza kwesivinini esikhulu se-medium kungasetshenziswa ukuyigeza, bese ivalwa kahle (hhayi ivalwe ngokushesha, ivalwe ngonya, ukuvimbela ukungcola okusele ekubambeni indawo yokuvala), ivule futhi, iphindaphinde abaningi izikhathi, 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.
Indlela yokusebenza ye-valve
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.
Okunye okuphakathi, okupholisa ngemva kokuba i-valve ivaliwe, ukuze izingxenye ze-valve zinciphe, opharetha kufanele aphinde avaliwe ngesikhathi esifanele, ukuze indawo yokuvala ingashiyi umthungo omuhle, ngaphandle kwalokho, okuphakathi okuvela kumthungo omuhle ophezulu- ukugeleza kwesivinini, kulula ukugeza indawo yokubeka uphawu. 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 ngokuqinile, ukuze kungavuzi, ukuze ungacindezeli isiqu kakhulu, ukusheshisa ukugqoka, futhi kunzima ukuvula nokuvala.
Ukuhlolwa kokuvuza kokuhlolwa kwe-valve pressure
Ukuhlolwa kwengcindezi kubhekisela ekuhlolweni kwamandla omzimba. Ukuhlolwa kokuvuza, kubhekisela ekuhlolweni kokuqina kwendawo yokuvala, lezi zivivinyo ezimbili ezokuhlola ukusebenza kwe-valve enkulu. Indawo yokuhlola ngokuvamile amanzi okushisa avamile, futhi uphalafini ungasetshenziselwa ama-valve abalulekile. Ivalvu yokuphepha yokuhlola ingcindezi engaguquki, ingasebenzisa igesi ye-nitrogen ezinzile, futhi ingasebenzisa isitimu noma umoya esikhundleni salokho. Ukuze uthole ama-valve e-diaphragm, hlola ngomoya.
(1) ingcindezi yokuhlola
Ingcindezi yokuhlolwa kwamandla evalvu, kanye nomfutho ojwayelekile unobudlelwano obulandelayo
Ingcindezi yokulinganisa (i-Mpa) yokuhlolwa kwamandla (Mpa0.10.20.250.40.40.60.60.911.51.62.42.53.8466.49.610151624203025383248 ngokubonakala, ukucindezela okujwayelekile okuvela ku-0.4 Mpa 3 Mpa - 3 Mpa) Izikhathi zokuhlola uphawu lweValve, elilingana nokucindezela okuzisholo.
(2) Izindlela zokuhlola
Ukuhlolwa kwengcindezi nokuhlolwa kokuvuza kwenziwa ebhentshini lokuhlola. Ukwakheka kwebhentshi lokuhlola (njengoba kuboniswe kuMfanekiso 5-1) ukuthi kunengxenye ecindezelayo ngenhla kwebhentshi lokuhlola kanye nepayipi elixhunywe nephampu yokuhlola ingcindezi ngezansi. Ngemuva kokuthi i-valve icindezelwe, ipompo yokuhlola ingcindezi isebenza. Kusukela kugeji yokucindezela yepompo yokuhlola ingcindezi, i-valve ingafundwa inombolo yokucindezela. Lapho i-valve yokuhlola ingcindezi igcwala amanzi, umoya ose-valve kufanele ukhishwe. Ipuleti lokucindezela engxenyeni engenhla yebhentshi yokuhlola inembobo yokukhipha futhi ivuliwe futhi ivalwe nge-valve encane. Isibonakaliso sokuthi umoya usuphelile ukuthi wonke amanzi aphuma emgodini. Ngemuva kokuvala i-vent, qala ukukhulisa ukucindezela. Inqubo ye-boost kufanele ihambe kancane, ingabi bukhali. Ngemuva kokufinyelela ingcindezi ecacisiwe, gcina imizuzu emi-3, ingcindezi ayifaneleki.
Inqubo yokuhlola ukuvuza kwengcindezi ingahlukaniswa ngezinyathelo ezintathu:
1, vula indlela ye-valve, ugcwalise imbobo ye-valve ngamanzi (noma uphalafini), futhi ukhuphule ingcindezi ezidingweni zokuhlola amandla, hlola umzimba we-valve, isembozo se-valve, i-gasket, ukupakisha ukuvuza.
2, vala umgwaqo we-valve, ingcindezi ngakolunye uhlangothi lwe-valve ukuya ekucindezelweni okuzisholo, hlola ukuthi kukhona ukuvuza kolunye uhlangothi.
3. Phendukisa i-valve uyibhekise phansi bese uhlola uhlangothi oluphambene.
Isisekelo sokukhiqiza i-valve yesifunda sesabelo sendawo singaphezu kwalokhu?
Abangane abaningi baye badidekile kunokuba abazi ukuthi yini abakhiqizi ukuthola ama-valve, yini brand, lapho izinga lingcono, abanye abantu bathi Shanghai, abanye abantu bathi Zhejiang, abanye abantu bathi Jiangsu, xiaobian kule moto inhlonipho.
Amavalvu ahlukahlukene futhi kukhona uhlobo lwevalvu oludumile ngokwezibalo lungaphezu kwezinkulungwane eziyisishiyagalombili, kanti eyodwa engu-5 ayinazibalo, inenqwaba eklanyelwe ibhizinisi ngokukhethekile, inokuningi eklanyelwe iphrojekthi ethile, hhayi * * * esetshenziswa imakethe, kodwa ingxenye encane iqedwa, isho njalo okuningi, iyisiphithiphithi, ngokuqondile iphuzu lokuthi thina, Okuqukethwe okulandelayo kumane nje kuyikona lomkhathizwe, izibalo zezinwele zenkomo, ukuvakashelwa okuningiliziwe noma insimu, sebenzisa okuhle (ukuhlukaniswa okuningiliziwe kwemikhiqizo kanye nemikhiqizo yesifunda sicela unake isihloko esilandelayo). Ngezansi sizohlaziya abakhiqizi abakhulu abaseduze nesigaba samavalvu kanye nesabelo semakethe sencazelo, idatha isekelwe kwizibalo ze-National Bureau of Statistics (abakhiqizi abanamalayisense okukhiqiza, inombolo yokuthengisa kanye nemiphumela yezibalo zentela yonyaka).
Izinga lemakethe ye-valve:
Isilinganiso: 53%
1. Idolobha lase-Oubei, Isifunda sase-Yongjia, e-Wenzhou: 23% (amavalvu avamile, ama-valve ensimbi, ama-valve ajwayelekile aseMelika, njll.)
2, Isifunda saseWenzhou Longwan: 15% (amavalvu aphansi, amavalvu ensimbi engagqwali, njll.)
I-Yuhuan County: 6% (ama-valve ethusi, njll.)
I-Ningbo: 2.5% (amavalvu epulasitiki, amavalvu ethusi, njll.)
I-Lishui: 2% (ama-valve ensimbi, ama-valve ajwayelekile aseMelika, njll.)
I-Hangzhou: 1.5% (i-valve elawulayo, njll.)
I-Yueqing: 0.5% (Amavalvu olwandle, njll.)
Idolobha laseZhuji: 0.5% (amavalvu ethusi, izesekeli zomlilo, njll.)
I-Yuyao: 0.5% (i-valve ye-solenoid)
Okusele okungu-1% (Ruian, Tongxiang, Taizhou)
Idolobha laseYancheng, eSifundazweni saseJiangsu: 12.5% ​​(i-valve yebhizinisi elihlangene, i-valve yensimbi, i-hydraulic valve, i-high pressure valve, njll.)
I-Shanghai: 7% (amavalvu angenisiwe, ** amavalvu, ama-valve esiteshini samandla, ama-automatic control valves, njll.)
I-Tianjin: 5% (i-valve yokucindezela okuphansi, i-valve butterfly ethambile, njll.)
Isifundazwe saseGuangdong: 4% (ama-valve ahlangene, njll.)
Isifundazwe saseFujian: 2.5% (ama-ductile iron valves, fire valves, water valves, njll.)
I-Henan City: 2% (ama-valve anengcindezi ephansi, insimbi eyinsimbi, ama-ductile iron valves, njll.)
I-Beijing: 2% (ama-valve aphezulu, njll.)
I-Zigong, esifundazweni saseSichuan: 1% (amavalvu omfutho ophezulu, amavalvu esiteshi samandla, njll.)
Isifundazwe saseShandong: 1% (amavalvu e-groove, amavalvu omlilo, njll.)
Isifundazwe sase-Hebei: 1% (insimbi ekhonjiwe, ama-valve ensimbi e-ductile, njll.)
Umasipala waseChongqing: 0.5% (ivalve ye-solenoid, njll.)
Okusele: 9%
Izibalo ezingenhla zihlukaniswa ngokuya ngenani lamabhizinisi, ukuthengiswa, kanye nenani lomkhiqizo. Uma kukhona ukuchezuka, sicela ubheke isimo sangempela.