Igama le-valve kanye nemodeli ye-valve yesibonelo sokuqhathaniswa kwezinhlobo ze-valve, ukusetshenziswa kwama-valve ahlukahlukene

Igama le-valve kanye nemodeli ye-valve yesibonelo sokuqhathaniswa kwezinhlobo ze-valve, ukusetshenziswa kwama-valve ahlukahlukene Igama le-valve liqanjwe ngokuya ngemodi yokudlulisela, ifomu lokuxhuma, ifomu lesakhiwo, impahla yomugqa kanye nohlobo. , Isibonelo 1: Idrayivu kagesi, ukuxhunywa kwe-flange, isango eliphindwe kabili eline-wedge yenduku evulekile, impahla engaphezulu yokuvala yesihlalo sevalvu ecutshungulwa ngokuqondile ngumzimba wevalvu, umfutho ojwayelekile PN = 0.1 MPa impahla ye-valve yesango lensimbi yensimbi empunga: Ukuqanjwa kwevalvu Ivalvu kufanele ibe Iqanjwe ngokwendlela yokudlulisa, ifomu lokuxhuma, ifomu lesakhiwo, impahla yolayini kanye nohlobo, kodwa lokhu okulandelayo kuzoshiywa ekuqokweni: 1) Ifomu lokuxhuma: "i-flange". 2) Ngendlela yesakhiwo: A. I-valve yesango "stem", "elastic", "rigid" kanye "nesango elilodwa"; B. Uhlobo lokusika lwe-globe valve kanye ne-throttle valve; C. i-valve yebhola "entantayo" futhi "iqonde ngqo"; D. butterfly valve "ipuleti mpo"; E. I-valve ye-diaphragm "uhlobo lophahla"; F. I-valve yokuxhuma "ukupakisha" kanye "nokuqondisa ngqo"; G. Hlola i-valve "iqonde ngqo" kanye "ne-flap eyodwa"; H. "ukungavaliwe" kwevalvu yokukhulula. 3) Igama lempahla endaweni yokuvala isihlalo sevalvu. Isibonelo semodeli ye-valve nendlela yokulungiselela igama Isibonelo 1 Ukushayela ugesi, ukuxhunywa kwe-flange, i-open rod wedge uhlobo lwesango eliphindwe kabili, impahla evala isihlalo sevalvu icutshungulwa ngokuqondile ngumzimba we-valve, umfutho wegama elithi PN = 0.1 Impahla ye-valve ye-MPa iyisango lensimbi elimpunga. valvu: 2942 W-1 wedge kagesi uhlobo iveluvu yesango eliphindwe kabili Isibonelo 2: Imanuwali, ukuxhunywa kwentambo yangaphandle, ivalve yebhola elintantayo, i-straight-through, impahla engaphezulu yokuvala yepulasitiki eyi-fluorine, ingcindezi yegama PN = 4.0mpa, impahla yomzimba engu-1 Cr18Ni9Ti: Q21f -40p i-valve yebhola yentambo yangaphandle Isibonelo 3 I-pneumatic evamile evulekile, uxhumano lwe-flange, i-roof ridge, i-lining material yolwelwesi lwerabha, ukucindezela okujwayelekile kwe-PN = 0.6mpa, i-valve yomzimba we-valve yensimbi empunga ye-diaphragm: G6k41j-6 i-pneumatic yohlobo oluvamile oluvulekile lwelayini yerabha Ivalve ye-diaphragm Isibonelo 4 Ivalve yevemvane eyiHydraulic, ukuxhumana kwe-flange, ipuleti elime mpo, indawo evalekayo yesihlalo iyinsimbi ecijile, into evalekayo yediski iyirabha, umfutho wegazi ongu-PN-0.25mpa} Insimbi yomzimba empunga: D741 X-2.5 hydraulic I-valve uvemvane Isibonelo 5 Idrayivu yemoto, ukuxhuma okushiselwe, uhlobo oluqondile, isihlalo se-valve esivala uphawu indawo engaphezulu ye-carbide enobuso obuqinile, ingcindezi yokusebenza engu-540 ℃ ingu-17 MPa, impahla yomzimba yevalvu iyi-chromium-platinum-vanadium valvu yeglobu yensimbi: J961 Y-P54170 V Ivalvu yeglobu eshiselwe ngogesi Ukuqhathaniswa kwezinhlobo zamavalvu nokusetshenziswa kwamavalvu ahlukahlukene 1, kungani ivalvu enqamuliwe kufanele ikhethe uphawu oluqinile ngangokunokwenzeka? Lapho izimfuneko zokuvuza ze-valve ziphansi, kungcono, ukuvuza kwe-valve yokuvala ethambile kuba okuphansi kakhulu, umphumela wokusika muhle impela, kodwa awugqoki ukumelana, ukwethembeka okubi. Kusukela kuzinga eliphindwe kabili lokuvuza okuncane nokubeka uphawu okuthembekile, ukuvala okuthambile akulungile njengokuvala okunzima. Njengomsebenzi ogcwele we-valve yokukhanya kwe-ultra, evalwe futhi ehlanganiswe nokuvikelwa kwe-alloy engagugi, ukuthembeka okuphezulu, izinga lokuvuza le-10-7, liye lakwazi ukuhlangabezana nezidingo ze-valve yokusika. 2, kungani i-valve yophawu oluphindwe kabili ingakwazi ukusetshenziswa njenge-valve yokusika? Inzuzo ye-spool ye-valve enezihlalo ezimbili yisakhiwo sebhalansi yamandla, okuvumela umehluko omkhulu wengcindezi, kanye nobubi bayo obuvelele ukuthi izindawo ezimbili zokuvala azikwazi ukuxhumana kahle ngesikhathi esisodwa, okuholela ekuvuzeni okukhulu. Uma ingokwenziwa, iphoqelekile ngezikhathi zokusika, ngokusobala umphumela awumuhle, ngisho noma yenze ukuthuthukiswa okuningi (njenge-valve yomkhono wokuvala uphawu kabili), ayifiseleki. 3. Kungani ivalvu enezihlalo ezimbili kulula ukunyakazisa uma isebenza ngokuvula okuncane? Ngomgogodla owodwa, lapho okuphakathi kuwuhlobo lokugeleza oluvulekile, ukuzinza kwe-valve kuhle; Lapho okuphakathi kuwuhlobo oluvaliwe, ukuzinza kwe-valve kumpofu. I-valve yezihlalo ezimbili ine-spool emibili, i-spool ephansi ingaphakathi kokugeleza ivaliwe, i-spool engenhla isekugelezeni okuvulekile, ngakho-ke, emsebenzini omncane wokuvula, ukugeleza okuvaliwe kwe-spool kulula ukubangela ukudlidliza kwe-valve, lokhu isizathu esenza i-valve enezihlalo ezimbili ingakwazi ukusetshenziselwa umsebenzi omncane wokuvula. I-4, yikuphi ukusebenza kokuvimbela i-valve okuqondile okungalungile, ukusebenza kwe-Angle stroke blocking valve kuhle? I-spore ye-valve ye-stroke eqondile inyakazisa mpo, futhi indawo emaphakathi iwukugeleza okuvundlile ukungena nokuphuma egunjini lama-valve amashaneli kufanele ijike, ukuze indlela yokugeleza kwevalvu ibe inkimbinkimbi impela (umumo ofana nohlobo luka-S oluhlanekezelwe). Ngale ndlela, kunezindawo eziningi ezifile, ezinikeza indawo yemvula ye-medium, okuthi, ngokuhamba kwesikhathi, ibangele ukuvinjelwa. I-Angle stroke valve throttling direction iyisiqondiso esivundlile, ukugeleza okuvundlile kungene phakathi, ukuphuma okuvundlile, kulula ukususa okuphakathi okungcolile, ngesikhathi esifanayo indlela yokugeleza ilula, isikhala esiphakathi kwemvula sincane kakhulu, ngakho-ke i-Angle stroke valve blocking. ukusebenza kuhle. 5, kungani i-stroke elawula i-valve stem ibe mncane? I-valve elawula i-stroke eqondile ifaka isimiso esilula somshini: ukushwibeka, ukungqubuzana okuginqikayo kuncane. I-valve ye-stroke eqondile igxilisa phezulu naphansi ukunyakaza, ukupakisha kancane kancane, kuzobeka iphakheji ye-stem iqine kakhulu, okuholela ekubuyiseleni umehluko omkhulu. Kuze kube manje, umklamo we-stem mncane kakhulu, futhi ukupakishwa kuvame ukusetshenziswa nge-coefficient encane ye-friction yokupakisha i-ptfe, ukuze kuncishiswe umehluko wokubuya, kodwa inkinga ukuthi isiqu sincane, kulula ukugoba, nokuphila. yokupakisha kufushane. Ukuze uxazulule le nkinga, indlela engcono kakhulu ukusebenzisa i-rotary valve stem, okungukuthi, uhlobo lwe-Angle stroke uhlobo lwe-valve elawulayo, isiqu saso kunesiqu sohlangothi esiqondile izikhathi ezingu-2 ~ 3, bese ukhetha ukupakisha kwe-graphite yempilo ende, ukuqina kwe-stem kuhle, ukupakisha. impilo yinde, i-torque ye-friction incane, ingemuva elincane. 6, kungani i-Angle stroke valve inqamule umehluko wengcindezi mkhulu? I-Angle stroke valve inqamule umehluko wengcindezi mkhulu, ngoba imidiya ku-spool noma ipuleti ye-valve ku-torque engumphumela ekhiqizwa i-shaft ejikelezayo incane kakhulu, ngakho-ke, ingakwazi ukumelana nomehluko omkhulu wengcindezi. 7. Kungani i-valve yomkhono ithathe indawo ye-valve yesihlalo esisodwa nesikabili? Ukufika kwevalvu yemikhono ngeminyaka yawo-1960s, ngawo-1970 ngobuningi bokusetshenziswa kwasekhaya nakwamanye amazwe, ukwethulwa kwemishini ye-petrochemical ngeminyaka yawo-1980 kwaba nenani elikhulu, ngaleso sikhathi, abantu abaningi bakholelwa ukuthi i-valve yomkhono ingakwazi. buyisela i-valve yesihlalo esisodwa, esikabili, ibe isizukulwane sesibili semikhiqizo. Kuze kube manje, lokhu akunjalo, ama-valve esihlalo esisodwa, ama-valve anezihlalo ezimbili, ama-sleeve valves asetshenziswa ngokulinganayo. Lokhu kungenxa yokuthi i-valve yomkhono ithuthukisiwe kuphela indlela yokudonsa, ukuzinza nokugcinwa kahle kune-valve yesihlalo esisodwa, kodwa isisindo sayo, izinkomba zokuvinjwa nokuvuza kanye ne-valve yesihlalo esisodwa, esikabili, ingashintsha kanjani i-valve yesihlalo esisodwa, esikabili? Ngakho-ke, ingasetshenziswa kuphela ndawonye. 8, kungani ukusetshenziswa desalination amanzi medium injoloba ujenga uvemvane valve, fluorine lined diaphragm valve ukuphila iDemo? Ingxenye yamanzi akhishwe usawoti iqukethe ukugcwala okuphansi kwe-asidi noma i-alkali, enokugqwala okukhulu kunjoloba. Ukugqwala kwenjoloba kubonakala njengokunwetshwa, ukuguga, amandla aphansi, kanye nomphumela wokusetshenziswa kwe-valve uvemvane kanye ne-valve ye-diaphragm ehlanganiswe nenjoloba impofu, futhi ingqikithi yayo ibangelwa ukumelana nokugqwala kwenjoloba. Ngemva kokuba i-valve ye-diaphragm enerabha enerabha ithuthukisiwe ibe yivalve ye-diaphragm ene-fluorine ene-fluorine ekwazi ukumelana nokugqwala, kodwa i-diaphragm yevalve ye-diaphragm ene-fluorine iphulwa ngokugoqa phezulu naphansi, okuholela ekulimaleni komshini, futhi ukuphila kwevalvu kufinyezwa. Manje indlela engcono kakhulu yokwelapha i-valve yebhola ngamanzi, ingasetshenziswa iminyaka engu-5 ~ 8. 9. Kungani kusetshenziswa ama-piston actuators amaningi kumavalvu omoya? Kuma-valve womoya, i-piston actuator ingasebenzisa ngokugcwele ukucindezela komthombo womoya, ubukhulu be-actuator buhlangene kakhulu kunohlobo lwefilimu, i-thrust inkulu, i-o-ring ku-piston inokwethenjelwa kakhulu kunefilimu, ngakho-ke. ukusetshenziswa kwayo kuzokwanda. 10. Kungani ukukhetha kubaluleke ngaphezu kokubala? Ukubala kubaluleke kakhulu futhi kuyinkimbinkimbi kunokukhetha. Ngenxa yokuthi ukubala kumane kuyisibalo sefomula elula, yona ngokwayo ayincikile ezingeni lefomula, kodwa ekunembeni kwemingcele yenqubo enikeziwe. Ukukhethwa kuhilela okuqukethwe okwengeziwe, ukunganaki okuncane, kuzoholela ekukhethweni okungalungile, hhayi nje kuphela kubangele ukuchithwa kwezinsiza zabantu, izinto ezibonakalayo kanye nezezimali, kodwa futhi ukusetshenziswa komphumela akulungile, kuletha izinkinga eziningi zokusetshenziswa, njengokwethenjelwa. , impilo, izinga lokusebenza nokunye.