Indlela yokuxazulula inkinga encane ejwayelekile yevalvu Isingeniso esijwayelekile sokusebenza kwe-valve kanye nesimiso sokusebenza

Ivalvu evamile indlela yokuxazulula izinkinga ezincane Isingeniso esijwayelekile sokusebenza kwe-valve kanye nomgomo wokusebenza Kungani ivalve enezihlalo ezimbili kulula ukunyakazisa lapho isebenza ngesimbobo esincane? Ngomgogodla owodwa, lapho okuphakathi kuwuhlobo oluvulekile lokugeleza, ukuzinza kwe-valve kuhle; Lapho ukugeleza okuphakathi kuvaliwe, ukuzinza kwe-valve kubi. I-valve yesihlalo esiphindwe kabili inama-spool amabili, i-spool ephansi ingaphakathi kokugeleza ivaliwe, i-spool ephezulu isekugelezeni okuvulekile, ngakho-ke, emsebenzini omncane wokuvula, ukugeleza okuvaliwe kohlobo lwe-spool kulula ukubangela ukudlidliza kwe-valve, lokhu isizathu esenza ukuthi i-valve yezihlalo ezimbili ingakwazi ukusetshenziselwa umsebenzi omncane wokuvula. Isiqu se-valve saso siwugqinsi izikhathi ezi-2 ~ 3 kunesiqu se-valve ye-stroke eqondile, futhi ukukhethwa kokupakishwa kwe-graphite yempilo ende, ukuqina kwesiqu kuhle, impilo yokupakisha yinde, i-torque ye-friction incane, umehluko omncane wokubuya. Indlela yokuxazulula i-valve izinkinga ezincane ezivamile 1. Kungani kulula ukugoqa lapho i-valve enezihlalo ezimbili ivulekile? Ngomgogodla owodwa, lapho okuphakathi kuwuhlobo oluvulekile lokugeleza, ukuzinza kwe-valve kuhle; Lapho ukugeleza okuphakathi kuvaliwe, ukuzinza kwe-valve kubi. I-valve yesihlalo esiphindwe kabili inama-spool amabili, i-spool ephansi ingaphakathi kokugeleza ivaliwe, i-spool ephezulu isekugelezeni okuvulekile, ngakho-ke, emsebenzini omncane wokuvula, ukugeleza okuvaliwe kohlobo lwe-spool kulula ukubangela ukudlidliza kwe-valve, lokhu isizathu esenza ukuthi i-valve yezihlalo ezimbili ingakwazi ukusetshenziselwa umsebenzi omncane wokuvula. 2. Kungani ivalvu evala uphawu kabili ingakwazi ukusetshenziswa njengevalvu eyisikiwe? Inzuzo ye-spool ye-valve enezihlalo ezimbili ukuthi isakhiwo sebhalansi yamandla sivumela ukuthi umehluko wengcindezi ube mkhulu, kuyilapho ububi bayo obuvelele ukuthi izindawo ezimbili zokuvala azikwazi ukuxhumana kahle ngesikhathi esisodwa, okuholela ekuvuzeni okukhulu. Uma kusetshenziswa ngokungemthetho futhi ngenkani ukunqamula umcimbi, ngokusobala umphumela awumuhle, ngisho noma wenze ukuthuthukiswa okuningi (njenge-valve yemikhono eqinile ephindwe kabili), ayifiseleki. 3, yikuphi ukusebenza okuqondile kwe-valve yokulawula i-valve engalungile, ukusebenza kwe-Angle stroke blocking valve kuhle? I-spool ye-valve ye-stroke eqondile inyakazisa mpo, futhi okumaphakathi kuwukugeleza okuvundlile ukungena nokuphuma egunjini lama-valve isiteshi sokugeleza kufanele kubuyele emuva, ukuze indlela yokugeleza kwevalvu ibe yinkimbinkimbi impela (umumo onjengohlobo oluhlanekezelwe "S"). Ngale ndlela, kunezindawo eziningi ezifile, ezihlinzeka ngendawo yemvula ye-medium, futhi ngokuhamba kwesikhathi, kubangele ukuvinjelwa. Isiqondiso se-Angle stroke valve throttling yindlela evundlile, okuphakathi kugeleza futhi kuphume ngokuvundlile, futhi kulula ukususa okuphakathi okungahlanzekile. Ngesikhathi esifanayo, indlela yokugeleza ilula, futhi isikhala semvula esiphakathi sincane kakhulu, ngakho-ke i-valve ye-Angle stroke inokusebenza okuhle kokuvimbela. 4. Kungani isiqu sevalvu elawula i-stroke siba mncane? Kuhilela isimiso esilula somshini: ukungqubuzana okukhulu kokuslayida kanye nokungqubuzana okuncane okugoqayo. Straight stroke valve stem up and down ukunyakaza, ukupakisha sicindezelwe kancane kancane, izobeka isiqu valve zisongwe kakhulu, ukukhiqiza umehluko omkhulu emuva. Ngenxa yalesi sizathu, isiqu se-valve senzelwe ukuba sibe sincane kakhulu, futhi ukupakisha kuvame ukusetshenziswa nge-coefficient encane yokupakisha i-PTFE, ukuze kuncishiswe ukuhlukana, kodwa inkinga ukuthi i-valve stem incane, kulula ukugoba. , futhi impilo yokupakisha ifushane. Ukuxazulula le nkinga, indlela engcono ukusebenzisa isiqu se-valve yokuhamba, okungukuthi uhlobo lwe-Angle stroke ye-valve elawulayo, isiqu sayo se-valve siwugqinsi izikhathi ezi-2 ~ 3 kunesiqu se-valve ye-stroke eqondile, kanye nokukhetha kokugcwalisa i-graphite yempilo ende. , ukuqina kwesiqu kuhle, impilo yokupakisha yinde, i-torque ye-friction incane, umehluko omncane wokubuya. I-valve yebhola iguquliwe kusuka ku-valve yepulaki. Inesenzo sokuzungezisa esingu-90 degree, ngaphandle kokuthi indikimba yepulaki iyindilinga enezimbobo noma iziteshi nge-eksisi yayo. Uma ibhola lizungeziswe ngamadigri angu-90, indawo eyindilinga kufanele ivele kukho kokubili indawo yokungena nokuphumayo ukuze kunqandwe ukugeleza. Ama-valve ebhola adinga kuphela ukuzungezisa okungu-90 degree kanye nesikhashana esincane sokuzungeza ukuze avale ngokuqinile. Umgodi womzimba we-valve olingana ngokuphelele we-medium inikeza ukumelana okuncane, ngqo ngokusebenzisa umzila wokugeleza. Ama-valve ebhola afanele ukuvulwa nokuvala okuqondile, kodwa futhi angasetshenziselwa ukudonsa nokulawula ukugeleza. I-valve evamile Amavalvu esango elingu-1 I-valve yesango isetshenziswa njengendawo yokunqamula, ukugeleza konke kuqondile lapho ivuleke ngokugcwele, futhi ukulahlekelwa kokucindezela kokugijima okuphakathi kuncane ** *. Ama-valve esango ngokuvamile afaneleka izimo zokusebenza ezingadingi ukuvulwa nokuvala njalo, futhi ugcine isango livuliwe ngokugcwele noma livalwe ngokugcwele. Ayihloselwe ukusetshenziswa njengesilawuli noma i-throttling. Ngokugeleza kwejubane ELIPHEZULU OKUPHAKATHI, Isango LINGABANGA ukudlidliza kwesango esimweni sokuvuleka kwendawo, futhi ukudlidliza kungase konakalise indawo yokuvala yesango nesihlalo, futhi i-throttle izobangela isango ukuthi lihlupheke ngenxa yokuguguleka kwendawo ephakathi nendawo. . Kusukela efomini lesakhiwo, umehluko omkhulu uhlobo lwesici sokuvala esisetshenzisiwe. Ngokwesimo sezakhi zokuvala, ama-valve esango avame ukuhlukaniswa abe yizinhlobo eziningana ezihlukene, njengama-valve esango eliwunqenqema, ama-valve esango ahambisanayo, ama-valve amasango amabili ahambisanayo, ama-wedge amasango amabili, njll. ** Amafomu avame ukusetshenziswa ama-valve esango le-wedge futhi ama-valve esango ahambisanayo. Vula i-stem wedge yohlobo olulodwa lwe-valve yesango 2 i-valve yokumisa i-valve ye-globe isetshenziselwa ukunqamula ukugeleza kwendawo ephakathi, i-axis yesiqu se-valve yembulunga incike endaweni yokuvala yesihlalo, futhi iphulwa ngokushayela phezulu. futhi phansi kwe-spool. Uma i-valve yokumisa isivuleke ngokuphelele, ngeke isaba nokuxhumana phakathi kwesihlalo nezindawo zokuvala i-clapper, futhi ibe nesenzo sokusika esithembeke kakhulu, ngakho-ke ukuguga nokuklebhuka kwayo komshini kuncane, ngoba iningi lesihlalo se-valve esinqunyiwe. futhi i-valve disc kulula ukuyilungisa noma ukufaka esikhundleni sazo zonke izingxenye zokuvala izivalo ngaphandle kokukhishwa epayipini, Lokhu kulungele ukusetshenziswa lapho i-valve nolayini kushiselwe ndawonye. Isiqondiso sokugeleza kwe-medium ngokusebenzisa i-valve sishintshile, ngakho ukumelana nokugeleza kwe-valve yembulunga kuphakeme. Uketshezi olwethulwa kuvalvu yembulunga kusukela engxenyeni engezansi ye-spool kubizwa ngokuthi ukuhlangana okusemthethweni, kusukela engxenyeni engenhla ye-spool kubizwa ngokuthi i-reverse assembly. Uma i-valve ihlangene ngokusemthethweni, ukuvuleka kwe-valve kusindisa umsebenzi futhi ukuvala kunzima. Lapho i-valve ihlanganisa i-reverse, i-valve ivalwa ngokuqinile futhi ukuvula kunzima. I-valve yeglobu yesivalo sikagesi eyisicaba 3 ivalvu yokuhlola Inhloso yevalvu yokuhlola ukuvumela okuphakathi ukuthi kugeleze ohlangothini olulodwa kuphela nokuvimbela ukugeleza kokuqondisa. Ngokuvamile i-valve iqhutshwa ngokuzenzakalelayo, ngaphansi kwesenzo sokugeleza kwengcindezi yamanzi endaweni eyodwa, i-disc ivula; Lapho uketshezi lugeleza lubheke kolunye uhlangothi, umfutho we-fluid kanye ne-disc ye-valve ezidlulayo yediski ye-valve isebenza esihlalweni ukuze inqamule ukugeleza. Kubandakanya i-valve yokuhlola i-swing kanye ne-valve yokuhlola i-lift. Ivalve yokuhlola i-Swing 4 ivalve uvemvane Ipuleti levemvane levalve uvemvane lifakwe ohlangothini lobubanzi bepayipi. Kusiteshi esiyisilinda somzimba we-valve uvemvane, ipuleti levemvane elimise okwediski lizungeza i-eksisi, futhi i-engeli yokuzungeza iphakathi kuka-0° no-90°. Lapho i-valve ijikeleziswa ibe ngu-90 °, i-valve ivuliwe ngokugcwele. I-Butterfly valve isakhiwo esilula, ivolumu encane, isisindo esincane, izingxenye ezimbalwa kuphela. Futhi isidingo sokuzungezisa u-90° kuphela singavula futhi sivale ngokushesha, ukusebenza okulula. Lapho i-valve uvemvane isendaweni evuleke ngokugcwele, ubukhulu bepuleti uvemvane ukumelana lapho okuphakathi kugeleza emzimbeni we-valve, ngakho-ke ukumelana okukhiqizwa yi-valve kuncane kakhulu, ngakho kunezici zokulawula ukugeleza okungcono, kungaba isetshenziselwe ukulungisa. I-Butterfly valve inezinhlobo ezimbili ze-elastic seal kanye ne-metal seal. I-valve yophawu olunwebekayo, indandatho yokuvala ingafakwa emzimbeni noma ixhunywe kupuleti uvemvane. I-valve ene-metal seal ivamise ukuba yinde kune-valve ene-elastic seal, kodwa kunzima ukuyifinyelela ngokuphelele. Isigxivizo sensimbi singazivumelanisa nezinga lokushisa eliphakeme lokusebenza, futhi uphawu olunwebekayo lunobubi bokunqunyelwa izinga lokushisa. I-valve yebhola engu-5 I-valve yebhola ivele isuka ku-valve yepulaki. Inesenzo sokuzungezisa esingu-90 degree, ngaphandle kokuthi indikimba yepulaki iyindilinga enezimbobo noma iziteshi nge-eksisi yayo. Uma ibhola lizungeziswe ngamadigri angu-90, indawo eyindilinga kufanele ivele kukho kokubili indawo yokungena nokuphumayo ukuze kunqandwe ukugeleza. Ama-valve ebhola adinga kuphela ukuzungezisa okungu-90 degree kanye nesikhashana esincane sokuzungeza ukuze avale ngokuqinile. Umgodi womzimba we-valve olingana ngokuphelele we-medium inikeza ukumelana okuncane, ngqo ngokusebenzisa umzila wokugeleza. Ama-valve ebhola afanele ukuvulwa nokuvala okuqondile, kodwa futhi angasetshenziselwa ukudonsa nokulawula ukugeleza. Isici esiyinhloko se-valve yebhola yisakhiwo sayo esihlangene, esisebenza kalula futhi sigcinwe, silungele amanzi, izincibilikisi, ama-acids kanye negesi yemvelo kanye neminye imidiya yokusebenza evamile, kodwa futhi ifanele izimo zokusebenza ezimbi zemidiya, njenge-oxygen, i-hydrogen peroxide, i-methane, i-ethylene, i-resin, njll. Umzimba we-valve yebhola ungahlanganiswa, ungahlanganiswa. I-valve engu-6 ye-diaphragm i-diaphragm valve ixhunywe ne-diaphragm enwebekayo engxenyeni yokucindezela, ingxenye yokucindezela ihanjiswa phezulu naphansi ngokusebenza kwe-stem, lapho ingxenye yokucindezela iphakama, i-diaphragm ibanjwe phezulu, yenza indlela, lapho ingxenye yokucindezela iwa. , i-diaphragm icindezelekile emzimbeni, i-valve ivaliwe. Le valve ifanele ukuvuleka nokudonsa. I-valve ye-diaphragm ifaneleka ngokukhethekile ukuthuthwa kwe-corrosive, i-viscous fluid, futhi indlela yokusebenza ye-valve ayivezwanga ekuthuthweni koketshezi, ngakho-ke ngeke ingcoliswe, ayidingi ukupakisha, ingxenye yokupakisha isiqu ngeke ivuze. 7 Ivalve Yokusiza Umgomo Wesenzo Sevalvu Yokukhulula ISEKELWE EKULINGANISENI OKUQHUBEKAYO, UMA IMICINDEZELO EKUDISC IMKHULU KUNE-SPRING SET PRESSURE, I-DISC IZOPHUSHWA NGALESI PHAMBILI, KANYE NEGASI (ULIQU) ESOKU UMCIMBI WOCINDEZELO UZOKHISHWA UKUZE KUNXIBE IMICINDEZI EMKHUBENI WOkucindezela. 8 Isilawuli Isimiso sokusebenza esiyinhloko se-valve, ukushintsha indawo yokugeleza phakathi kwediski ye-valve nesihlalo, ukulungisa ingcindezi, ukugeleza kanye neminye imingcele yenjongo. Lesi sigaba sethula ngokuyinhloko isakhiwo esiyinhloko somzimba we-valve kanye ne-valve core, izici zokugeleza kwe-valve kanye nesixazululo senkinga yomsindo we-cavitation ye-valve core.