UKUKHETHWA KANYE NOKULUNGISWA KWE-valve YOKUPHEPHA ye-LECCO. Uchwepheshe we-Lecco Valve uphendula ukuthi ingaqinisekisa kanjani ivalvu yokuphepha yomshayeli ngendlela efanele futhi ngokushesha
Ingcindezi yokulawula inquma ukucindezela okuzisholo kwe-valve yokuphepha, izinga lokushisa elisebenzayo linquma ububanzi bokushisa bokusetshenziswa kwe-valve yokuphepha, inani lokucindezela elingapheli elibalwe le-valve yokuphepha linquma ububanzi bokucindezela okungaguquki kwentwasahlobo noma i-lever, bese inquma impahla. kanye nesakhiwo se-valve yokuphepha ngokuya ngokusetshenziswa kwe-medium, bese ibala ububanzi bomphimbo wevalvu yokuphepha ngokuya ngokudedelwa kwevalvu yokuphepha. Okulandelayo yimithetho ejwayelekile yokukhethwa kwamavalvu okuphepha.
(l) Amabhoyela amanzi ashisayo ngokuvamile asebenzisa ivalvu yokuphepha evulekile encane engavaliwe enewrench.
(2) Ibhoyili yesitimu noma ipayipi lesitimu ngokuvamile lisetshenziswa lingavalwanga ngesikrini esigcwele valvu yokuphepha evulekile.
(3) Amanzi nezinye izinto eziwuketshezi ezingenakucindezelwa ngokuvamile ezinevalvu yokuphepha evulekile encane evaliwe, noma enevalvu yokuphepha.
(4) Ukunikezwa kwamanzi anomfutho ophakeme ngokuvamile kusetshenziswa ivalvu yokuphepha yokuvula evaliwe evaliwe, njengesifudumezi samanzi esinengcindezi ephezulu, isishintshi sokushisa nokunye.
(5) Igesi nezinye izinto ezicindezelayo ngokuvamile zisebenzisa ivalvu yokuphepha evaliwe evula ngokugcwele, njengamathangi okugcina igesi, amapayipi egesi, njll.
(6) I-boiler yesitimu yekilasi E ngokuvamile ene-valve yokuphepha kwesisindo esimile.
(7) ububanzi obukhulu, ukufuduka okukhulu kanye nesistimu yokucindezela okukhulu ene-valve yokuphepha kwe-pulse evamile, njengokunciphisa izinga lokushisa kanye nedivayisi yokunciphisa amandla, ubhayela wezitshalo zamandla, njll.
(8) Ivalvu yokuphepha eyakhelwe ngaphakathi ivamise ukusetshenziselwa ukuthutha igesi ewuketshezi, njengamathange ezitimela, amathange wamaloli kanye namathangi okugcina.
(9) Ingaphezulu lethangi ngokuvamile lisetshenziswa nevalvu yokuphepha esebenza ngogesi, okudingeka ukuthi isetshenziswe nevalvu yokuphefumula.
(10) Ivalvu yokuvikela umshayeli ivamise ukusetshenziselwa ukudonsa amanzi angaphansi komhlaba noma amapayipi egesi yemvelo.
(11) Ivalvu yokubuyisa ukuphepha ivamise ukusetshenziswa ephayiphini lokubuya kwesigaba soketshezi lapho kuphuma khona iphampu yethangi lesiteshi sikaphethiloli owuketshezi.
(12) Ukucindezela okungalungile noma ukucindezela okungalungile kungase kukhiqizwe ohlelweni lokusebenza, uhlelo lufana ne-vacuum evamile yokuphepha kwe-vacuum negative.
(13) isiqukathi noma ipayipi elishintshashintshayo lomfutho wangemuva omkhulu futhi linobuthi futhi livutha liyafana nevalvu yokuphepha yemvuvulo evamile.
(14) indawo ebandayo ephansi yendawo emaphakathi iyafana nokukhethwa okuvamile kwevalvu yokuphepha yohlobo lwejakhethi eshisayo.
Ukulinganisa nokugcinwa kwe-valve yokuphepha
Ukuhlola izinkomba zokusebenza kobuchwepheshe zevalvu yezokuphepha kufanele kube ukuhlolwa kokusebenza okugcwele, ukuhlola imfuneko eyisisekelo kakhulu ukuba nesimo sangempela sokugijima, ngisho nangaphezu kwesimo sangempela sokugijima. Ngaphezu kwezitsha zokushisa eziphakeme kanye nomfutho ophezulu kanye nezinye izinto zokusebenza, le divayisi yokuhlola kufanele futhi ifakwe ezihlukahlukene zokunqunywa okusheshayo kwemingcele, futhi iqinisekise ukugeleza okukhulu kwezinga lokushisa eliphezulu kanye nomthombo ophakeme we-steam, izindleko zikhulu.
Isheke liyingxenye yokuhlolwa kwevalvu yokuphepha futhi liyinto eyinhloko yokuhlolwa kwefekthri. Ngaphambi kokushiya imboni, ithebula lokuhlola i-valve yokuphepha ekamelweni lokushisa ngokuvamile lisetshenziselwa ukuvula ukulungiswa kwengcindezi nokuhlolwa kokuvala kwe-air medium. Ithebula lokuhlola izinga lokushisa kwegumbi le-valve yokuphepha lingenza kuphela ukulungisa ukucindezela okuvulekile nokuhlolwa kokuvala.
(1) Kungaphansi kwaziphi izimo lapho ivalvu yokuphepha idinga ukuhlolwa
1) Ngaphambi kokugcina isikhathi eside noma * sebenzisa
2) Ukuqinisekisa okuvamile
3) Ama-valve awonakele kakhulu futhi agqwalile
4) Amavalvu anama-nameplates ama-valve angekho
5) I-Valve enophawu lomthofu owonakele
(2) Ukubaluleka kanye nendlela yokulungisa umfutho wesihlalo
Izinga lezwe lonke lencazelo yokucindezela emuva libhekisela ku-valve yokukhulula ukuze iphume, ingcindezi ephakathi kwehle ibe yinani elithile, i-disc ukuthintana nesihlalo, okungukuthi ukuphakama okuvulekile kunguziro, i-valve yokungena kwe-static pressure, i-back pressure nayo okuphansi, okuningi kubi, okuphansi kakhulu kuzodala ukulahlekelwa okuphakathi namandla, kuphezulu kakhulu, kufushane ukukhishwa, kubangele i-valve frequency jump, Umgomo ukulungisa ukucindezela kwesihlalo sangemuva ngangokunokwenzeka ukunciphisa ukulahlekelwa okuphakathi kanye amandla esimweni sokuthola ukukhishwa kwekhabhoni.
(3) Indlela yokulungisa
Ukucindezela kwesihlalo sangemuva kulungiswa ngokulungisa indandatho, umgomo wokulungisa umgomo wegebe, igebe lincane, ukumelana okukhulu lapho ukhipha, amandla amakhulu abambe i-spool phansi, kuba nzima nakakhulu ukubuyela ku-spool. isihlalo, ngokuphambene nalokho, igebe likhulu, kulula kakhulu ukuthi i-spool ibuyele emuva, iphezulu ingcindezi yesihlalo sangemuva.
Ukuze i-valve yokuphepha enendandatho yokulawula ephansi kuphela, iringi yokulawula iphezulu, ukucindezela kwesihlalo sangemuva kuphansi, iringi yokulawula iphansi, ukucindezela kwesihlalo sangemuva phezulu; Kuvalvu yokuphepha enendandatho yokulawula yaphezulu naphansi, ibanga lendandatho yokulawula phezulu naphansi liyehla, umfutho wesihlalo sangemuva liyehla, ibanga leringi yokulawula phezulu naphansi liyakhuphuka, umfutho wesihlalo sangemuva uyakhula.
(4) hlola indlela kanye nezinzuzo zayo kanye nebubi
Ukuhlola i-valve yokuphepha kunokuhlola insimu (isheke ku-inthanethi) futhi hlola ithebula isheke izindlela ezimbili, izimo ezivumelayo kufanele uzame ukuhlola ensimini, ngoba isheke lensimu lifaneleka kakhulu izimo zokusebenza zangempela, ngakho-ke kungaba ngcono.
Izinzuzo zesheke lensimu: kulula ukuhlola i-valve yokuphepha yokushisela, ingalinganiswa ukucindezela emuva, ukulinganisa okunembile.
Okubi ukuthi isikhathi sokulinganisa side, uhlelo kufanele luthuthukiswe ngokuphindaphindiwe, hhayi umnotho, oluyingozi kakhulu, alukwazi ukwenza ukuhlolwa kokubeka uphawu.
Izinzuzo kanye nokubi kwetafula lokuhlola izinga lokushisa le-valve yokuphepha:
A. Xazulula ukulungiswa kanye nokutholwa kokuvuza kwevalvu yokuphepha yezinga lokushisa elivamile kanye nezinga lokushisa elingaphansi kuka-250C.
B. Nquma ububanzi bephutha elincane lokucindezela kokuvula kwe-valve yokuphepha, londoloza isikhathi sokulungiswa kwe-valve yokuphepha esanda kufakwa, unciphise amandla okusebenza, unciphise ukusetshenziswa kwamandla futhi unciphise ingozi yomsebenzi.
C. Kukhona iphutha phakathi kwezinga lokushisa lokusebenza kanye nokushisa okuvamile (intwasahlobo iba thambile ekushiseni okuphezulu), futhi ukucindezela kwesihlalo sangemuva akukwazi ukuqinisekiswa.
(5) isisetshenziswa esisetshenziselwa ukuqinisekiswa kwezinga lokushisa elijwayelekile
Umoya, i-nitrogen namanzi ngokuvamile zisetshenziselwa ukuqinisekiswa kwezinga lokushisa elivamile (ukucindezela kungaphezu kuka-20Mpa). I-oksijeni, i-hydrogen, igesi ye-acetylene nezinye izinto ezivuthayo, ezisekela ukuvutha noma ezinobuthi neziyingozi azikwazi ukusetshenziswa njengokuqinisekisa komthombo omaphakathi. Uphalafini, uphethiloli, udizili, njll., awukwazi ukusetshenziswa njengomthombo ophakathi nendawo. Nakuba igesi ye-carbon dioxide ingenabo ubuthi futhi ingashi, kulula ukuyiqhwa futhi uvimbe ipayipi.
(6) isimiso sokulinganiswa kwe-valve yokuphepha
I-medium enengcindezi idluliselwa endaweni yokungena yevalve yokuphepha ehloliwe. Lapho ingcindezi ephakathi ikhuphukela esimweni esivulekile se-valve yokuphepha, ukucindezela ngalesi sikhathi kulinganiswa, futhi ukucindezela kokuvula kubekwe futhi kulungiswe inani elishiwo lokuvula ukuze kuqedelwe ukuqinisekiswa kwengcindezi yokuvula. Khona-ke lapho ukucindezela kwehla kunani elicacisiwe (90% yengcindezi yokuvula), i-gauge yokucindezela noma ezinye izindlela zomthetho zisetshenziselwa ukuhlola ukuvuza okuphakathi, okungukuthi, ukuhlola ukuvala uphawu.
Ungaqinisekisa kanjani i-valve yokuphepha yomshayeli ngendlela efanele futhi ngokushesha
I-valve yokuphepha yomshayeli iwuhlobo lwevalvu yokuphepha enesakhiwo senoveli. Isetshenziswa kakhulu ku-petroleum kanye negesi yeMVELO, imboni yamakhemikhali, amandla kagesi, i-metallurgy negesi yedolobha neminye imikhakha. Iwumshini ongcono kakhulu wokuvikela ukucindezela kwemishini yezinto ezinomfutho, iziqukathi noma amapayipi. Inzuzo yayo enkulu iba isenzo esiqondile sentwasahlobo somphumela ongaqondile womshayeli, ithuthukisa ukuzwela kwesenzo, futhi umkhono usetshenziswa ku-piston ye-valve eyinhloko, isakhiwo sesihlalo sophawu oluphindwe kabili, ukunemba okuphezulu, ukuphindaphinda okuhle, ukubuyela emuva ukuze uhambe ngokushesha, awukwazi ukuvuza. , thatha ukukhishwa kwe-high back pressure, impilo ende yokusebenza, umsebenzi uzinzile futhi unokwethenjelwa, kungase futhi kube ukulinganisa ku-inthanethi, futhi ugxume kaningi ngemva kokukhishwa, usengabuya ngokuzenzakalelayo, Vala ngokuqinile, kulula ukuyisebenzisa nokuyinakekela.
I-valve yokuphepha yohlobo lomshayeli
Ivalvu yokuphepha yomshayeli isekelwe esisekelweni sevalvu evamile yokuphepha yasentwasahlobo, yengeza indlela yokuhlola, ukuze ivalvu yokuphepha ibe nevalvu yokuphepha yomshayeli kanye nendima ephindwe kabili yevalvu yokuphepha evamile. Izici zayo yilezi: isenzo esinembile nesithembekile; Ukusebenza kokubekwa uphawu kuthuthukiswa kakhulu; Umehluko wengcindezi yokuvula nokuvala kulula ukuhlangabezana nezidingo; Isenzo esibucayi, ukukhishwa kwegesi okukhulu. Ngakho-ke uyazi ukuthi i-valve yokuphepha yomshayeli kufanele ilinganiswe kanjani? Uchwepheshe wethu we-valve we-Leco uzokuhlelela lolu lwazi.
I-valve yokuphepha yohlobo lwasentwasahlobo
Inqubo yokuqinisekisa i-valve yokuphepha yomshayeli:
Okokuqala, isheke le-valve yokuphepha komshayeli ngokuvamile lithunyelwa kusheke esiteshini sokuhlola ngumsebenzisi, ezimweni ezikhethekile zingasetshenziswa ekuhloleni insimu, umsebenzisi wokuhlola isayithi kufanele anikeze izimo ezidingekayo zokuhlola.
Okwesibili, umsebenzisi kufanele anikeze ulwazi lwefekthri yevalvu yokuphepha yomshayeli, ingcindezi yokuklama kanye nengcindezi yokusebenzisa ipayipi lempahla, umbiko wokugcina wokulinganiswa noma umbono wokulinganisa okhishwe umhloli wezisetshenziswa.
Okwesithathu, hlola idatha ethunyelwe ukuze ibuyekezwe, thola ingcindezi yokubeka.
4. Hlola i-valve yokuphepha yomshayeli wendiza esanda kufakwa ngedatha ephelele. Ngaphansi kwezimo ezijwayelekile, izinsuku ezimbili zokusebenza ziyafiseleka; Ngevalvu yokuphepha yomshayeli ngobuningi noma edinga ukulungiswa, isikhathi sokuqeda sizonqunywa ngokuya ngesimo sangempela ngokubonisana nomsebenzisi.
Ezinhlanu, ngokusho kokuqukethwe kokulinganisa, gcwalisa irekhodi lokulinganisa, ukhiphe umbiko wokuhlola.
Okwesithupha, ngemva kokuqinisekisa, umhloli uzokwazisa umsebenzisi ukuthi athole ivalvu yokuphepha yomshayeli kanye nombiko wokuhlola.
Isikhathi sokuthumela: Sep-03-2022
