Ivalve eqhelekileyo indlela yokusombulula ingxaki yevalve Intshayelelo yokusebenza kwevalvu kunye nomgaqo wokusebenza

Ivalve eqhelekileyo indlela yokusombulula ingxaki eqhelekileyo Intshayelelo yokusebenza kwevalve kunye nomgaqo-siseko wokusebenza Kutheni ivalve enezihlalo ezibini kulula ukushukuma xa isebenza ngevula encinane? Ngondoqo omnye, xa i-medium is flow open type, ukuzinza kwevalve kulungile; Xa i-medium ivaliwe, ukuzinza kwevalve kubi. I-valve yesitulo esiphindwe kabini sine-spool ezimbini, i-spool esezantsi ikwi-flow evaliweyo, i-spool ephezulu ikwi-flow evulekileyo, ngoko ke, kumsebenzi omncinci wokuvula, ukuhamba okuvaliweyo kohlobo lwe-spool kulula ukubangela ukungcangcazela kwevalve, oku. sisizathu sokuba ivalve yesitulo esiphindwe kabini ingasetyenziselwa umsebenzi omncinci wokuvula. Isiqu sevalvu yayo i-2 ~ 3 ngokuphindwe kabini kunesiqu sevalve ye-stroke ethe tye, kunye nokukhethwa kokupakishwa kwexesha elide legraphite, ukuqina kwesiqu kulungile, ukupakisha ubomi bude, i-torque yefriction incinci, umahluko omncinci wokubuya. Indlela yokusombulula iingxaki ezincinci eziqhelekileyo 1. Kutheni kulula ukushukuma xa ivalve enezihlalo ezibini ivulekile kancinci? Ngondoqo omnye, xa i-medium is flow open type, ukuzinza kwevalve kulungile; Xa i-medium ivaliwe, ukuzinza kwevalve kubi. I-valve yesitulo esiphindwe kabini sine-spool ezimbini, i-spool esezantsi ikwi-flow evaliweyo, i-spool ephezulu ikwi-flow evulekileyo, ngoko ke, kumsebenzi omncinci wokuvula, ukuhamba okuvaliweyo kohlobo lwe-spool kulula ukubangela ukungcangcazela kwevalve, oku. sisizathu sokuba ivalve yesitulo esiphindwe kabini ingasetyenziselwa umsebenzi omncinci wokuvula. 2. Kutheni ivalve yokutywina kabini ingenakusetyenziswa njengesivalo esisikiweyo? I-advanteji ye-spool ye-valve yezihlalo ezibini yeyokuba i-force balance structure ivumela ukuba umahluko woxinzelelo ube mkhulu, ngelixa i-disadvantage yayo ebalaseleyo kukuba iindawo ezimbini zokutywina azikwazi ukudibanisa kakuhle ngexesha elinye, okubangela ukuvuza okukhulu. Ukuba isetyenziswe ngokunyanzeliswayo kunye nokunyanzeliswa ukunqumla umcimbi, ngokucacileyo umphumo awulungile, nokuba wenze uphuculo oluninzi (njenge-valve ye-sleeve yokutywina kabini), ayinqweneleki. I-3, yeyiphi i-stroke echanekileyo yokulawula ukusebenza kwevalve engalunganga, ukusebenza kwe-Angle stroke blocking valve kulungile? I-spool yevalve yestroke ethe nkqo ibethe nkqo, kwaye indawo ephakathi ihamba ethe tye ukungena nokuphuma kumjelo wevalve yegumbi kufuneka ijike umva, ukuze indlela yokuhamba kwevalve ibenzima kakhulu (imilo efana nohlobo olujikisiweyo luka-"S"). Ngale ndlela, kukho iindawo ezininzi ezifileyo, ezibonelela ngesithuba semvula yemvula ephakathi, kwaye ekuhambeni kwexesha, kubangela ukuvala. Icala le-Angle stroke valve throttling licala elithe tye, i-medium iqukuqela ingene kwaye iphume ngokuthe tye, kwaye kulula ukuyithatha indawo engacocekanga. Ngexesha elifanayo, indlela yokuhamba ilula, kwaye indawo yemvula ephakathi incinci kakhulu, ngoko i-valve ye-Angle stroke inomsebenzi omhle wokuthintela. 4. Kutheni isiqu sevalve elawulayo esithe ngqo sibe bhityile? Ibandakanya umgaqo olula womatshini: i-sliding friction enkulu kunye ne-rolling encinci. Ivalve yevalve ethe tye isikhondo phezulu nasezantsi intshukumo, ipakisha icinezelwe kancinci, iya kubeka isikhondo sevalve esongelwe ngokuqinileyo, ivelise umahluko omkhulu ngasemva. Ngenxa yesi sizathu, i-valve stem yenzelwe ukuba ibe yincinci kakhulu, kwaye ukupakishwa ngokuqhelekileyo kusetyenziswa kunye ne-coefficient encinci yokupakisha i-PTFE yokupakisha, ukuze kuncitshiswe i-backdifference, kodwa ingxaki kukuba i-valve stem incinci, kulula ukugoba. , kwaye ubomi bokupakisha bufutshane. Ukusombulula le ngxaki, indlela engcono kukusebenzisa isiqu sevalve yokuhamba, eyile i-Angle stroke uhlobo lwevalve elawulayo, isiqu sayo sevalve ngama-2 ~ 3 amaxesha atyebileyo kunesikhondo sevalve ethe tye, kunye nokukhetha isigcwali sobomi obude begraphite. , ukuqina kwesiqu kulungile, ukupakisha ubomi bude, i-torque ye-friction incinci, umehluko omncinci wokubuya. Ivalve yebhola yenziwe yavela kwivalve yeplagi. Inenyathelo elifanayo lokujikeleza kwe-90 degree, ngaphandle kokuba umzimba weplagi yingqukuva enesetyhula ngemingxunya okanye iziteshi kwi-axis yayo. Xa ibhola ijikeleziswa ngamadigri angama-90, umphezulu ongqukuva kufuneka uvele kuzo zombini indawo yokungena kunye nokuphuma ukunqumla ukuhamba. Iivalve zebhola zifuna kuphela ukujikeleza kwe-90 kunye nomzuzu omncinci wokujikeleza ukuvala ngokuqinileyo. Umgodi womzimba wevalvu olingana ngokupheleleyo kwindawo ephakathi unika ukuxhathisa okuncinci, ngokuthe ngqo kwijelo lokuhamba. Iivalve zebhola zifanelekile ukuvulwa ngokuthe ngqo kunye nokuvala, kodwa zingasetyenziselwa ukubethelwa kunye nokulawula ukuhamba. Ivalve eqhelekileyo Ivalve yesango eli-1 Ivalve yesango isetyenziswa njengesixhobo esisikiweyo, ukuhamba konke kuthe tye xa ivuleke ngokupheleleyo, kwaye ilahleko yoxinzelelo lwendlela ephakathi i ** * encinci. Iivalve zesango zihlala zifanelekile kwiimeko zokusebenza ezingadingi ukuvulwa nokuvala rhoqo, kwaye ugcine isango livulekile ngokupheleleyo okanye livalwe ngokupheleleyo. Ayijoliswanga ukusetyenziswa njengomlawuli okanye i-throttling. Kwisantya esiphezulu sokuhamba OKUPHAKATHI, isango linokubangela ukungcangcazela kwesango kwimeko yokuvulwa kwendawo, kwaye ukungcangcazela kunokonakalisa indawo yokutywina yesango kunye nesihlalo, kwaye i-throttle iya kubangela ukuba isango lihlupheke ngenxa yokukhukuliseka kwendawo ephakathi. . Ukususela kwifom yesakhiwo, umahluko oyintloko yindlela yokutywina esetyenzisiweyo. Ngokohlobo lwezinto zokutywina, iivalvu zesango zihlala zohlulwe zibe ziindidi ezininzi ezahlukeneyo, ezinjengeevalve zesango le wedge, iivalve zesango ezinxuseneyo, iivalve zesango ezinxuseneyo, iingcango eziphindwe kabini zesango, njl njl. iivalvu zesango ezinxuseneyo. Ivalve yeglowubhu evulekileyo yohlobo lwesango enye ivalve yesi-2 yokumisa ivalve yeglowubhu isetyenziselwa ukunqumla ukuhamba kwesixhobo esiphakathi, i-axis yesiqu sevalve yeglowubhu ikwi-perpendicular kumphezulu wokutywina wesihlalo, kwaye yaphulwe ngokuqhubela phezulu. kwaye phantsi kwe-spool. Nje ukuba ivalve yokumisa ivuleke ngokupheleleyo, ayisayi kuba nonxibelelwano phakathi kwesihlalo kunye neendawo zokutywina, kwaye ibe nesenzo esithembeke kakhulu sokusika, ngenxa yoko ukutywinwa kwayo komatshini ukunxiba kunye nokukrazuka kuncinci, kuba uninzi lwesihlalo esisikiweyo sevalve. kunye nediski yevalve kulula ukuyilungisa okanye ukubuyisela amacandelo okutywinwa kwevalve yonke ngaphandle kokususwa kumbhobho, Oku kulungele ukusetyenziswa apho ivalve kunye nomgca zidityaniswe kunye. Umkhombandlela wokuhamba we-medium ngevalve utshintshile, ngoko ke ukuchasana kokuhamba kwevalve yeglowubhu kuphezulu. Ulwelo olungeniswa kwivalve yeglowubhu ukusuka kwindawo engezantsi ye-spool ibizwa ngokuba yi-formal assembly, ukusuka kwindawo ephezulu ye-spool ibizwa ngokuba yi-reverse assembly. Xa ivelufa idityaniswe ngokusesikweni, ukuvuleka kwevalve kusindisa umsebenzi kwaye ukuvala kunzima. Xa i-valve idibanisa i-reverse, ivalve ivalwe ngokuqinileyo kwaye ukuvula kunzima. Ivalve yeglowubhu yesitywina sombane 3 ivalve yokukhangela Injongo yevalve yokukhangela kukuvumela i-medium ukuba ihambe kwicala elinye kuphela kunye nokuthintela ukuhamba kwendlela. Ngokuqhelekileyo i-valve iqhutywe ngokuzenzekelayo, phantsi kwesenzo sokuhamba koxinzelelo lwamanzi kwicala elinye, i-disc ivula; Xa ulwelo luqukuqela kwicala elichaseneyo, uxinzelelo lolwelo kunye nediski yevalve edlulayo yediski yevalve isebenza esitulweni ukunqumla ukuhamba. Kubandakanya ivalve yokukhangela i-swing kunye nevalve yokukhangela yokuphakamisa. Ivalve yokukhangela ujingi 4 ivelufa yebhabhathane Ipleyiti yebhabhathane yevalve yebhabhathane ifakwe kwicala elinobubanzi bombhobho. Kwi-cylindrical channel ye-butterfly valve body, i-disc-shaped butterfly plate ijikeleza i-axis, kwaye i-Angle yokujikeleza iphakathi kwe-0 ° kunye ne-90 °. Xa i-valve ijikelezwe kwi-90 °, i-valve ivuleke ngokupheleleyo. Ivalve yebhabhathane isakhiwo esilula, umthamo omncinci, ubunzima obukhanyayo, iindawo ezimbalwa kuphela. Kwaye kufuneka kuphela ukujikeleza i-90 ° inokuvula ngokukhawuleza nokuvala, ukusebenza okulula. Xa ivalve yebhabhathane ikwindawo evuleleke ngokupheleleyo, ubukhulu bepleyiti yebhabhathane kukuxhathisa xa i-medium iqukuqela kumzimba wevalve, ngoko ke ukuxhathisa okwenziwa yivalve kuncinci kakhulu, ngoko kuneempawu zokulawula ukuhamba kakuhle, isetyenziselwa ukulungiswa. Ivalve yebhabhathane ineendidi ezimbini zotywino olulastiki kunye nentsimbi yokutywina. Ivalve yetywina ethambileyo, umsesane wokutywina unokuxhonywa emzimbeni okanye uncanyathiselwe kwipleyiti yebhabhathane ngeenxa zonke. Ivalve enetywina yentsimbi iqhelekile kunevalve ene-elastic seal, kodwa kunzima ukufezekisa ukutywinwa okupheleleyo. Isitywina sentsimbi sinokuziqhelanisa nobushushu obuphezulu bokusebenza, kwaye isitywina esinalastiki sinobubi bokuthintelwa bubushushu. 5 ivalve yebhola Ivalve yebhola yenziwe yavela kwivalve yeplagi. Inenyathelo elifanayo lokujikeleza kwe-90 degree, ngaphandle kokuba umzimba weplagi yingqukuva enesetyhula ngemingxunya okanye iziteshi kwi-axis yayo. Xa ibhola ijikeleziswa ngamadigri angama-90, umphezulu ongqukuva kufuneka uvele kuzo zombini indawo yokungena kunye nokuphuma ukunqumla ukuhamba. Iivalve zebhola zifuna kuphela ukujikeleza kwe-90 kunye nomzuzu omncinci wokujikeleza ukuvala ngokuqinileyo. Umgodi womzimba wevalvu olingana ngokupheleleyo kwindawo ephakathi unika ukuxhathisa okuncinci, ngokuthe ngqo kwijelo lokuhamba. Iivalve zebhola zifanelekile ukuvulwa ngokuthe ngqo kunye nokuvala, kodwa zingasetyenziselwa ukubethelwa kunye nokulawula ukuhamba. Olona phawu luphambili lwevalve yebhola lubume bayo obubambeneyo, obulula ukusebenza kunye nokugcina, bulungele amanzi, izinyibilikisi, iiasidi kunye nerhasi yendalo kunye neminye imithombo yeendaba esebenza ngokubanzi, kodwa ilungele iimeko zokusebenza ezingezizo ezosasazo, njengeoksijini, ihydrogen peroxide, I-methane, i-ethylene, i-resin, njl. Ivalve ye-6 ye-diaphragm ye-diaphragm idityaniswe ne-elastiki diaphragm kwindawo yokucinezela, inxalenye yoxinzelelo ishukunyiswa phezulu naphantsi ngumsebenzi we-stem, xa inxalenye yoxinzelelo iphakama, i-diaphragm ibanjwe phezulu, yenze indlela, xa inxalenye yoxinzelelo iwa. , i-diaphragm icinezelwe emzimbeni, i-valve ivaliwe. Le valve ifanelekile ukuvula kunye ne-throttling. I-valve ye-diaphragm ilungele ukuhanjiswa kwe-corrosive, i-viscous fluid, kunye ne-valve yokusebenza kwe-valve ayibonakali ekuthuthweni kwamanzi, ngoko ayiyi kungcoliswa, ayifuni ukupakisha, inxalenye yokupakisha i-stem ayiyi kuvuza. 7 Ivalve yoncedo UMGAQO WOKUSEBENZA KWEVAVA YOKUNIKEZELA IXESHA USESEKWE KUBANGANISO OKUNYANZELEKAYO, NJENGOKUBA UXINEZELEKO KWIDISC LUKHULU KUNE-SPRING SET PRESURE, I-DISC IYA KUTYHLWA LUXINEZELEKO, KUNYE NEGASI (ULWEZI) UMKHUMBI WOXINZELELO IYA KUKHUTSHWA UKUNCIPHISA UXINZELELO KWI-PRESURE VESSEL. 8 umlawuli Umgaqo-siseko wokulawula i-valve, kukutshintsha indawo yokuhamba phakathi kwe-valve disc kunye nesihlalo, ukulungelelanisa uxinzelelo, ukuhamba kunye nezinye iiparitha zenjongo. Eli candelo lizisa ngokukodwa isakhiwo esiphambili somzimba we-valve kunye ne-valve core, iimpawu zokuhamba kwe-valve kunye nesisombululo kwingxaki yengxolo ye-cavitation ye-valve core.