1. Umgomo wokusebenza we-DBB plug valve
I-DBB plug valve iyi-valve ephindwe kabili kanye ne-valve yokopha: i-valve yesiqeshana esisodwa enezindawo ezimbili zokuvala izihlalo, lapho isendaweni evaliwe, ingavimba ingcindezi ephakathi nendawo evela emaphethelweni akhuphuka nomfula ngesikhathi esisodwa, futhi iboshelwe phakathi kwezindawo zokuvala isihlalo I-valve body cavity medium inomzila wokukhulula.
Isakhiwo se-valve yepulaki ye-DBB ihlukaniswe izingxenye ezinhlanu: ibhonethi engenhla, ipulaki, isihlalo sendandatho yokuvala, umzimba we-valve kanye nebhonethi ephansi.
Umzimba wepulaki we-DBB plug plug wakhiwe ngepulaki ye-valve eyi-conical kanye nama-valve discs amabili ukuze akhe umzimba wepulaki eyicylindrical. Ama-valve discs nhlangothi zombili ahunyushwe ngezindawo zokuvala zenjoloba, kanti phakathi nendawo iyipulaki ye-conical wedge. Lapho i-valve ivuliwe, indlela yokudlulisela yenza ipulaki ye-valve iphakame, futhi ishayela ama-valve discs nhlangothi zombili ukuze avale, ukuze uphawu lwe-valve disc kanye ne-valve body sealing surface kuhlukaniswe, bese ishayela umzimba wepulaki ukujikeleza 90. ° endaweni evuleke ngokugcwele yevalvu. Lapho i-valve ivaliwe, indlela yokudlulisela izungeza ipulaki ye-valve ngo-90 ° iye endaweni evaliwe, bese iphusha ipulaki ye-valve ukuze yehle, ama-valve discs nhlangothi zombili athintana nephansi lomzimba we-valve futhi awabe esaya phansi, phakathi nendawo. ipulaki ye-valve iyaqhubeka nokwehla, futhi izinhlangothi ezimbili ze-valve ziphushwa indiza ethambekele. I-disc iya endaweni yokuvala ye-valve yomzimba, ukuze indawo yokuvala ethambile ye-disc kanye nendawo yokuvala ye-valve yomzimba kucindezelwe ukuze kuzuzwe ukuvala. Isenzo sokungqubuzana singaqinisekisa impilo yesevisi ye-valve disc seal.
2. Izinzuzo ze-DBB plug valve
Ama-valve epulaki e-DBB anokuthembeka okuphezulu kakhulu kokuvala. Ngeqhude eliyingqayizivele elimise okwe-wedge, ithrekhi emise okwe-L kanye nomklamo okhethekile we-opharetha, i-valve disc seal kanye ne-valve body sealing surface kuyahlukaniswa komunye nomunye ngesikhathi sokusebenza kwe-valve, ngaleyo ndlela kugwema ukukhiqizwa kokungqubuzana, kuqedwe ukugqokwa kophawu. nokwelula impilo yevalvu. Ukuphila kwesevisi kuthuthukisa ukuthembeka kwe-valve. Ngesikhathi esifanayo, ukucushwa okujwayelekile kwesistimu yokusiza ukushisa kuqinisekisa ukuphepha nokusebenza kalula kwe-valve ngokuvala ngokuphelele, futhi ngesikhathi esifanayo kunikeza ukuqinisekiswa kwe-inthanethi kokuvala okuqinile kwe-valve.
Izici eziyisithupha ze-DBB plug valve
1) I-valve iyi-valve yokuvala esebenzayo, eyamukela idizayini yeqhude, ayinciki ekucindezelweni kwepayipi lephayiphi namandla okuqinisa ngaphambi kwentwasahlobo, ithatha isakhiwo esivala kabili, futhi yakha uphawu oluzimele oluvuzayo oluyiziro. okwenyuka nomfula, futhi i-valve inokwethenjelwa okuphezulu.
2) Umklamo oyingqayizivele we-opharetha kanye nomzila wesitimela omise okwe-L uhlukanisa ngokuphelele i-valve disc seal endaweni yokuvala umzimba we-valve ngesikhathi sokusebenza kwe-valve, iqede ukugqokwa kophawu. I-torque esebenzayo ye-valve incane, ifanele izikhathi zokusebenza njalo, futhi i-valve inomsebenzi omude wenkonzo.
3) Ukugcinwa kwe-valve ku-inthanethi kulula futhi kulula. I-valve ye-DBB ilula ngesakhiwo futhi ingalungiswa ngaphandle kokuyikhipha kulayini. Isembozo esingezansi singasuswa ukuze kukhishwe isilayidi phansi, noma ikhava yevalvu ingasuswa ukuze kukhishwe isilayidi phezulu. I-valve ye-DBB incane ngosayizi, ilula ngesisindo, ilungele ukuhlakazwa nokugcinwa kahle, ilula futhi iyashesha, futhi ayidingi imishini emikhulu yokuphakamisa.
4) Isistimu yokusiza ekushiseni okushisayo ye-DBB plug valve ikhulula ngokuzenzakalelayo ukucindezela kwesikhala sevalvu lapho kwenzeka ingcindezi ngokweqile, ivumela ukuhlolwa kwe-inthanethi kwesikhathi sangempela kanye nokuqinisekiswa kokuvala ama-valve.
I-5) Inkomba yesikhathi sangempela yendawo ye-valve, kanye nenaliti yenkomba esiqwini se-valve ingaphendula isimo sesikhathi sangempela se-valve.
I-6) Indawo engaphansi yokukhuculula indle ingakhipha ukungcola, futhi ingakhipha amanzi endaweni ye-valve ebusika ukuze kuvinjelwe ukonakala kwe-valve ngenxa yokwanda kwevolumu lapho amanzi eba yiqhwa.
3. Ukuhlaziywa kokwehluleka kwe-DBB plug valve
1) Iphinikhodi yomhlahlandlela iphukile. Iphinikhodi yomhlahlandlela igxilile kubakaki abanesiqu se-valve, kanti enye iphethelo inemikhono emseleni ongumhlahlandlela omise okuka-L kumkhono wesiqu se-valve. Lapho isiqu se-valve sivula futhi sivala ngaphansi kwesenzo se-actuator, iphinikhodi yomhlahlandlela ivinjelwa i-groove yomhlahlandlela, ngakho-ke i-valve iyakhiwa. Lapho i-valve ivuliwe, ipulaki iphakanyiswa phezulu bese ijikeleziswa ngo-90 °, futhi lapho i-valve ivaliwe, ijikeleziswa ngo-90 ° bese icindezelwa phansi.
Isenzo sesiqu se-valve ngaphansi kwesenzo sephinikhodi singabola sibe yisenzo sokuzungezisa esivundlile kanye nesenzo sokubheka phezulu naphansi esime mpo. Lapho i-valve ivulwa, isiqu se-valve sishayela umsele omise okwe-L ukuze uphakame uqonde kuze kube yilapho iphinikhodi yokuqondisa ifinyelela endaweni yokujika ye-groove emise okwe-L, isivinini esiqondile sincipha sibe ngu-0, futhi isiqondiso esivundlile sisheshisa ukujikeleza; lapho i-valve ivaliwe, isiqu se-valve sishayela i-groove emise okwe-L ukuze ijikelezise ohlangothini oluvundlile ukuya lapho iphinikhodi ifinyelela endaweni yokujika ye-groove emise okwe-L, ukwehla okuvundlile kuba ngu-0, futhi isiqondiso esiqondile siyasheshisa futhi sicindezela. phansi. Ngakho-ke, iphinikhodi yomhlahlandlela ingaphansi kwamandla amakhulu kakhulu lapho i-groove emise okuka-L iphenduka, futhi kulula kakhulu ukwamukela amandla okushayisana ngezikhombisi-ndlela ezivundlile nezime mpo ngesikhathi esifanayo. Izikhonkwane zomhlahlandlela eziphukile.
Ngemuva kokuthi iphinikhodi yomhlahlandlela iphukile, i-valve isesimweni lapho ipulaki ye-valve iphakanyisiwe kodwa ipulaki ye-valve ayizange ijikelezwe, futhi ububanzi bepulaki ye-valve buncike kububanzi bomzimba we-valve. Igebe liyadlula kodwa liyehluleka ukufinyelela endaweni evuleke ngokugcwele. Kusukela ekujikelezeni kwendawo edlulayo, kungahlulelwa ukuthi iphinikhodi ye-valve iphukile yini. Enye indlela yokwahlulela ukuphuka kwephinikhodi yomhlahlandlela ukubuka ukuthi iphinikhodi yenkomba egxilile ekupheleni kwesiqu se-valve ivuliwe yini uma i-valve ishintshwa. Isenzo sokuzungezisa.
2) Ukufakwa kokungcola. Njengoba kunegebe elikhulu phakathi kwepulaki ye-valve kanye nesikhala sevalvu futhi ukujula kwesikhala sevalvu ngasendleleni eqondile kuphansi kunaleyo yepayipi, ukungcola kufakwa ngaphansi kwesikhala sevalvu lapho uketshezi ludlula. Lapho i-valve ivaliwe, ipulaki ye-valve icindezelwa phansi, futhi ukungcola okufakiwe kukhishwa ipulaki ye-valve. Ihlelwe phansi ngaphansi kwe-valve cavity, futhi ngemva kokufakwa okuningana bese ilungiswa, ungqimba lwe-"sedimentary rock" ungqimba lokungcola luyakhiwa. Uma ubukhulu bongqimba lokungcola budlula igebe phakathi kwepulaki ye-valve kanye nesihlalo se-valve futhi singasakwazi ukucindezelwa, kuzovimbela ukushaywa kwepulaki ye-valve. Isenzo sibangela ukuthi i-valve ingavaleki kahle noma idlule.
(3) Ukuvuza kwangaphakathi kwevalvu. Ukuvuza kwangaphakathi kwe-valve ukulimala okubulalayo kwe-valve yokuvala. Ukuvuza kwangaphakathi okwengeziwe, kunciphisa ukuthembeka kwe-valve. Ukuvuza kwangaphakathi kwevalvu yokushintsha uwoyela kungase kubangele izingozi ezimbi kakhulu zekhwalithi kawoyela, ngakho ukukhethwa kwevalvu yokushintsha uwoyela kudinga ukucatshangelwa. Umsebenzi wokuthola ukuvuza kwangaphakathi kwe-valve kanye nobunzima bokwelashwa kwangaphakathi kokuvuza. I-valve yepulaki ye-DBB inomsebenzi wokubona ukuvuza kwangaphakathi okulula futhi okulula ukuwusebenzisa kanye nendlela yokwelapha ukuvuza kwangaphakathi, kanye nesakhiwo se-valve yokuvala esinezinhlangothi ezimbili se-valve yepulaki ye-DBB iyenza ibe nomsebenzi othembekile wokunqamuka, ngakho uwoyela Ivalvu yokushintsha umkhiqizo yepayipi likawoyela elicolisisiwe lisebenzisa kakhulu ipulaki ye-DBB.
Indlela yokuthola ukuvuza kwe-DBB yepulaki yangaphakathi: vula i-valve yokukhulula ukushisa okushisayo, uma okunye okuphakathi kugeleza, iyeke ukuphuma, okufakazela ukuthi i-valve ayinakho ukuvuza kwangaphakathi, futhi indawo ephumayo iyindlela yokunciphisa ingcindezi ekhona ku-valve plug cavity. ; uma kukhona ukuphuma okuphakathi okuqhubekayo, Kufakazelwa ukuthi i-valve inokuvuza kwangaphakathi, kodwa akunakwenzeka ukubona ukuthi yiluphi uhlangothi lwe-valve ukuvuza kwangaphakathi. Kuphela ngokuqaqa i-valve singakwazi ukwazi isimo esithile sokuvuza kwangaphakathi. Indlela yangaphakathi yokuthola ukuvuza kwevalve ye-DBB ingabona ukutholwa ngokushesha esizeni, futhi ingathola ukuvuza kwangaphakathi kwevalvu lapho ishintsha phakathi kwezinqubo ezihlukene zomkhiqizo kawoyela, ukuze kuvinjelwe izingozi zekhwalithi yomkhiqizo kawoyela.
4. Ukudilizwa nokuhlolwa kwe-DBB plug valve
Ukuhlola nokunakekelwa kuhlanganisa ukuhlolwa okuku-inthanethi nokuhlola ungaxhunyiwe ku-inthanethi. Ngesikhathi sokulungiswa kwe-inthanethi, umzimba we-valve kanye ne-flange kugcinwa epayipini, futhi inhloso yokunakekelwa ifinyelelwa ngokuhlakaza izingxenye ze-valve.
I-disassembly kanye nokuhlolwa kwe-valve yepulaki ye-DBB ihlukaniswe ngendlela ephezulu yokuhlakaza kanye nendlela ephansi yokuqaqa. Indlela yokuqaqa engenhla iqondiswe kakhulu ezinkingeni ezikhona engxenyeni engenhla yomzimba we-valve njengesiqu se-valve, ipuleti lekhava elingaphezulu, i-actuator, nepulaki ye-valve. Indlela yokuhlakaza ihloselwe ikakhulukazi ezinkingeni ezikhona ekugcineni okuphansi kwezigxivizo, ama-valve disc, ama-cover plate aphansi, nama-valve endle.
Indlela yokuqaqa eya phezulu ikhipha i-actuator, umkhono we-valve stem, indlala evalayo, kanye nesembozo esingaphezulu somzimba we-valve ngokushintshana, bese ikhipha isiqu se-valve nepulaki ye-valve. Uma usebenzisa indlela ephezulu-phansi, ngenxa yokusika nokucindezela uphawu lokupakisha ngesikhathi sokufakwa kanye nokuguga kwesiqu se-valve ngesikhathi sokuvula nokuvala inqubo, ayikwazi ukuphinda isetshenziswe. Vula i-valve endaweni evulekile kusengaphambili ukuze uvimbele ipulaki ye-valve ekukhishweni kalula lapho ama-valve discs nhlangothi zombili ecindezelwe.
Indlela yokuhlakaza idinga kuphela ukususa ikhava engezansi engezansi ukuze ulungise izingxenye ezihambisanayo. Uma usebenzisa indlela yokuhlakaza ukuhlola i-valve disc, i-valve ayikwazi ukufakwa endaweni evaliwe ngokugcwele, ukuze ugweme i-valve disc ayikwazi ukukhishwa lapho i-valve icindezelwa. Ngenxa yokuxhumana okunyakazayo phakathi kwediski ye-valve kanye nepulaki ye-valve ngokusebenzisa i-dovetail groove, ikhava engezansi ayikwazi ukususwa ngesikhathi esisodwa lapho ikhava engezansi isuswa, ukuze kuvinjwe indawo yokuvala ukuthi ingalimali ngenxa yokuwa kwe-valve. idiski.
Indlela engenhla ye-disassembly kanye nendlela ephansi ye-disassembly ye-valve ye-DBB ayidingi ukuhambisa umzimba we-valve, ngakho ukugcinwa kwe-inthanethi kungafinyelelwa. Inqubo yokusiza ukushisa isethwe emzimbeni we-valve, ngakho-ke indlela engenhla yokuhlakaza kanye nendlela yokuhlakaza ephansi ayidingi ukuhlakaza inqubo yokusiza ukushisa, okwenza kube lula inqubo yokulungisa futhi ithuthukise ukusebenza kahle kwesondlo. Ukudilizwa nokuhlola akubandakanyi umzimba oyinhloko womzimba we-valve, kodwa i-valve idinga ukuvalwa ngokugcwele ukuvimbela okuphakathi ukuba kungachichima.
5. Isiphetho
Ukuxilongwa kwephutha kwe-DBB plug valve kuyabikezelwa futhi kwenzeka ngezikhathi ezithile. Ngokuncika emsebenzini wawo wokuthola ukuvuza okulungile kwangaphakathi, iphutha langaphakathi lokuvuza lingatholwa ngokushesha, futhi izici ezilula nezilula ukusebenza zokuhlola nezici zokusebenza zokunakekela zingathola ukunakekelwa ngezikhathi ezithile. Ngakho-ke, uhlelo lokuhlola nokunakekela ama-valve epulaki e-DBB nalo lushintshile kusukela ekugcinweni okujwayelekile kwangemuva kokuhluleka ukuya ohlelweni lokuhlola nokugcinwa kwezindlela eziningi oluhlanganisa ukugcinwa kokubikezela kusengaphambili, ukugcinwa komcimbi wangemuva nokugcinwa okuvamile.
Isikhathi sokuthumela: Dec-22-2022