Ivalve yokulawula uhlobo lwe-engile kwimveliso yindlela yokusebenzisa? I-valve yokulawula iLabyrinth yasombulula ngempumelelo iingxaki ze-cavitation, ingxolo kunye nokungcangcazela kweevalve eziqhelekileyo

Ivalve yokulawula uhlobo lwe-engile kwimveliso yindlela yokusebenzisa? I-valve yokulawula iLabyrinth yasombulula ngempumelelo iingxaki ze-cavitation, ingxolo kunye nokungcangcazela kweevalvu eziqhelekileyo Kwinkqubo yokulawula ngokuzenzekelayo yenkqubo yokuvelisa, i-valve yokulawula iyikhonkco ebalulekileyo kwaye ibalulekile, eyaziwa njengezandla kunye neenyawo zenkqubo yokuvelisa i-automation, enye. yamacandelo olawulo lwetheminali yenkqubo yolawulo oluzenzekelayo. Indlela yokuhamba yevalve yokulawula i-angular ilula, ukuchasana okuncinci, ngokuqhelekileyo kukulungele ukusetyenziswa kwangaphambili (ufakelo). Nangona kunjalo, kwimeko yokuhla koxinzelelo oluphezulu, kucetyiswa ukuba uguqule ukusetyenziswa kwe-Angle regulator, ukwenzela ukuba kuphuculwe amandla angalinganiyo kunye nokunciphisa umonakalo kwi-spool, kodwa kwakhona kukulungele ukuhamba kwe-medium, ukuphepha ukupheka kunye nokupheka. ukuvala umlawuli. I-valve yokulawula i-Angle ekusetyenzisweni umva, ngokukodwa kufuneka igweme ixesha elide lokuvula okuncinci, ukuze kuthintelwe i-oscillation enamandla kunye nokonakalisa i-spool. Ngokukodwa kwinqanaba lemveliso yovavanyo lwesityalo sekhemikhali, ngenxa yomthwalo ophantsi kwimveliso yovavanyo, iimeko zenkqubo yoyilo azikwazi ukuhlangabezana neemfuno ngokukhawuleza, ukusetyenziswa kwe-Angle yokulawula i-valve kufuneka kube kangangoko kunokwenzeka ukuphepha ixesha elide. yokuvula encinane, ukwenzela ukuthintela umonakalo kwivalve elawula i-Angle. Kwinkqubo yokulawula ngokuzenzekelayo yenkqubo yokuvelisa, i-valve yokulawula iyikhonkco ebalulekileyo kwaye iyimfuneko, eyaziwa ngokuba yizandla kunye neenyawo zenkqubo yokuvelisa i-automation, enye yecandelo lokulawula i-terminal yenkqubo yokulawula ngokuzenzekelayo. Yenziwe ngamacandelo amabini: i-actuator kunye nevalve. Ukusuka kwindawo yokujonga i-hydraulics, i-valve yokulawula ukuchasana kwendawo inokutshintsha i-throttle element, i-valve elawulayo ihambelana nomqondiso wegalelo ngokutshintsha ukubetha ukuguqula i-coefficient yokumelana, ukuze kufezekiswe injongo yokulawula ukuhamba. . Isakhiwo se-valve yokulawula i-angular kunye nokusetyenziswa kwesakhiwo se-1 Angle yokulawula i-valve ngaphezu kwe-valve ye-Angle, ezinye izakhiwo zifana ne-valve yokuhlala enye, iimpawu zayo zichaza indlela yayo yokuhamba elula, ukuchasana okuncinci, ngakumbi inceda ukuhla koxinzelelo oluphezulu, i-viscosity ephezulu, equlethe izinto eziqinileyo ezimisiweyo kunye nommiselo we-particulate matter fluid. Iyakwazi ukuphepha i-coking, i-bonding kunye ne-clogging phenomenon, kodwa kulula ukuyicoca kunye nokuzicoca. 2 Uhlobo lwe-Angle yokulawula ivalve elungileyo kunye nokusetyenziswa okubuyela umva phantsi kweemeko eziqhelekileyo, i-valve yokulawula uhlobo lwe-Angle ifakwe ngaphambili, oko kukuthi, ezantsi ukuya kwicala elingaphandle. Kuphela kwimeko yokuhluka koxinzelelo oluphezulu kunye ne-viscosity ephezulu, ukupheka okulula, i-medium equkethe i-particulate matter emisiweyo, ukufakwa kwe-reverse kuyacetyiswa, oko kukuthi, icala lezinto eziphathekayo ukuya emazantsi ngaphandle. Injongo yokusetyenziswa okutshintshileyo kwevalve yokulawula i-angular kukuphucula amandla angalinganiyo kunye nokunciphisa ukunxiba kwi-spool, kodwa kwakhona kukulungele ukuhamba kwe-viscosity ephezulu, ukupheka okulula kunye ne-medium equkethe i-particulate matter emisiwe, ukuphepha ukukhwela kunye nokuvala. Kwisityalo se-acetaldehyde esenziwe yiJilin Chemical Industry Co., Ltd. evela eNtshona Jamani, i-pv-23404 i-valve yokulawula i-Angle inconywa ukuba isetyenziswe umva phantsi kwenkqubo yenkqubo yokuhla kwengcinezelo ephezulu. Kuvavanyo lokudibanisa amanzi, i-valve yokulawula i-Angle ivelisa i-oscillation enamandla, kwaye ithumela ingxolo enzima, i-spool iya kuphuka emva kovavanyo lwe-4h. Ngelo xesha, iingcali zangaphandle zazikholelwa ukuba umgangatho wokuvelisa i-spool awulungile. Umbhali ucinga ukuba akusiyo ingxaki yomgangatho, kodwa ngenxa yokusetyenziswa okungenangqiqo. Izizathu zokuphuka kwayo zihlalutywa ngezantsi. Siyazi ukuba okwangoku, ngaphandle kweevalve zebhabhathane kunye neevalvu zediaphragm ezilungelelene ngokupheleleyo kwisakhiwo, zonke ezinye izilawuli zesakhiwo zi-asymmetrical. Xa ivalve elawulayo itshintsha indlela yokuhamba, ngenxa yokutshintsha kwendlela yokuhamba iya kubangela) utshintsho lwexabiso. Ukuhamba okuqhelekileyo kwazo zonke iintlobo zeevalvu ezilawulayo kukwenza i-spool ivuleke indlela evulekileyo (ukusetyenziswa okulungileyo), umenzi ubonelela kuphela umthamo wokuhamba kolwalathiso oluqhelekileyo lokuhamba) ixabiso kunye neempawu zokuhamba. Xa ivalve elawulayo isetyenziswa umva, umthamo wokuqukuqela wevalve elawulayo uya kwanda xa ulwelo luhamba ecaleni kwendlela apho i-spool ivaliwe. Ngethuba lokuvavanya ukudibanisa kwamanzi, iimeko zenkqubo ezifanisiweyo azikwazi ukufikelela kwimeko eqhelekileyo ngokukhawuleza, kwaye i-valve yokulawula isetyenziswe kwimeko encinci yokuvula ixesha elide. Ngenxa yamandla angalinganiyo, kuya kubakho ukungazinzi okukhulu. Ngoko ivalve elawulayo iya kuvelisa umothuko owomeleleyo kunye nengxolo erhabaxa, ekhokelela ekubeni i-spool iphuke ngokukhawuleza. Ngaphantsi kweemeko eziqhelekileyo zenkqubo, ukuvulwa kwe-valve yokulawula kumodareyitha, nokuba ukuvulwa okuncinci kufutshane, ngoko i-valve yokulawula ingasetyenziswa ngokuqhelekileyo kwaye ikhuselekile. Ivalve yokulawula iLabyrinth izisombulule ngempumelelo iingxaki ze-cavitation, ingxolo kunye nokungcangcazela kweevalvu eziqhelekileyo Umbane okanye ipneumatic multi-stage labyrinth valve regulating isetyenziswa kwi-multi-stage axial flow pressure sleeve eyenziwe nge-labyrinth channel elawula ivalve, ukulawula ngokupheleleyo izinga lokuhamba medium ngokusebenzisa ivalve, ukunciphisa kakhulu igesi yoxinzelelo oluphezulu okanye umphunga oveliswe kwingxolo yevalve, inqanaba elizinzileyo lamanqanaba amaninzi-ezantsi ngokufanelekileyo ukwenza ulwelo aluvelisi i-cavitation, lusetyenziswa kwindawo yoxinzelelo oluphezulu kwindawo ezinzileyo yokulawula ukusebenza, Ungakhetha I-multi - spring pneumatic film mechanism okanye i-actuator yombane. Ivalve yokulawula i-labyrinth iqulethe i-cylindrical disc ene-multiple of coaxial surfaces esasazwa nge-labyrinth ye-diameter egobileyo. Ngokweeparamitha zenkqubo eyahlukileyo yemeyidi, uyilo lwemilinganiselo yedayamitha yemaze eyahlukeneyo kunye nenani leeleya ezigqitheneyo ezenziwe ngekheji yevalve, ikheji yevalve iya kuba ngumjelo opheleleyo wokuqukuqela kujikelezo oluncinci okanye inyathelo elifana nokusasazwa kokuhamba okugobhozayo. umjelo, ukunyanzela ulwelo ukuba utshintshe rhoqo indlela yokuhamba kunye nommandla wokuhamba ngokuthe ngcembe unciphisa uxinzelelo lwe-fluid, ukuthintela ukwenzeka kwe-flash cavitation, ukwandisa ubomi benkonzo yeendawo zevalve. I-sleeve elungelelanisiweyo ye-sleeve ene-tight fit kwisihlalo iqinisekisa ukuvuza okuphantsi kakhulu. I-valve yangaphakathi ifanelekile kuzo zonke iintlobo zeemeko ezilula ukuvimba ukuhamba kunye nokubangela i-cavitation. Kuphawu oluphuma kumazwe angaphandle olunoxinzelelo oluphezulu lwevalve elawula ivalve yase-American VTON njengomzekelo, isetyenziswa ngokubanzi kubushushu obuphezulu kunye nomphunga woxinzelelo oluphezulu, kunye namathuba onikezelo lwamanzi. Ukushisa okuphezulu kunye noxinzelelo oluphezulu lwe-valve yokulawula i-valve isetyenziswa ngokubanzi kwisikhululo samandla, i-metallurgy, i-petrochemical kunye namanye amashishini amaninzi, ubushushu obuphezulu kunye noxinzelelo oluphezulu lokulawula i-valve cavitation, ingxolo kunye neengxaki zokungcangcazela, kube nzima ukusombulula isihloko. Ivalve yokulawula iLabyrinth isebenzisa itekhnoloji evuthiweyo, isonjululwe ngempumelelo ivalve yokulawula eqhelekileyo edibene nayo njenge-cavitation, ingxolo ephezulu, ukungcangcazela kunye nezinye iingxaki, isetyenziswe kwibhoyila yeplanti yamandla yokunciphisa amanzi afudumeleyo, impompo yokulawula ubuncinci bokuhamba kunye nolunye ulawulo lokuhamba. I-valve yokulawula i-labyrinth inokuqulunqwa ngokukodwa kwiimfuno ezahlukeneyo zabasebenzisi, ngokulawulwa kwesantya sokuhamba kwe-medium ukuphelisa i-cavitation, ingxolo, i-corrosion kunye neengxaki ze-vibration. I-valve yokulawula uhlobo lweLabyrinth kwisakhiwo soyilo lwe-disassembly ngokukhawuleza, ukugcinwa lula, kunokuba lula kakhulu ukutshintsha i-spool; Kwiimpawu ezihambayo zokusetyenziswa koyilo lwamatyala, ukwenzela ukubonelela ngolawulo lokuhamba ngokuthelekisayo, kunye neempawu eziqinileyo zokuvala. Isityalo samandla samkela i-valve yokulawula i-labyrinth, enokuqinisekisa ukusebenza okukhuselekileyo nokuzinzileyo, ukuphucula izinga kunye nokwandisa umjikelo wokulondoloza. Kwivalve yenqanaba elinye eliqhelekileyo lokuhla, uxinzelelo yi-p1 kwaye isantya sokuhamba si-v1 xa i-medium ingena. Xa i-medium flows kwi-spool part, ngenxa yempembelelo ye-throttling ye-spool kunye nesihlalo, i-neck shrinkage phenomenon, ngoko ke izinga lokuhamba liya kunyuka ngokukhawuleza ukuya kwi-v2, kwaye uxinzelelo luya kuncitshiswa ngokukhawuleza kwi-p2, kwaye kaninzi luphantsi kune-medium saturated. uxinzelelo lomphunga Pv. Kule meko, i-medium vaporizes, yenza amaqamza. Xa i-medium igeleza kwinxalenye yentamo eyenziwe yi-valve core kunye nesihlalo, imeko yokusebenza iphinda itshintshe ngenxa yokutshintshwa kweshaneli. Izibuko loxinzelelo liyenyuka kwaye amandla e-kinetic aguqulwa abe amandla anokubakho. Ngeli xesha, uxinzelelo lubuyela kwi-P3 kunye nesantya ukuya kwi-v3. Xa uxinzelelo ludlula uxinzelelo lwe-saturated vaporization ye-medium, i-Pv, amaqamza akhiwe nje aya kugqabhuka, avelise uxinzelelo oluqinileyo lwendawo. Amandla amakhulu xa iqamza ligqabhuka linokubangela umonakalo omkhulu kumbindi wevalve, isitulo sevalvu kunye nezinye izinto ezishukumayo ngomzuzwana, zenze into ebizwa ngokuba yi-cavitation phenomenon. I-Cavitation ibopheleleke ukuba ibangele umonakalo we-valve, ekhokelela ekuvuzeni, ingxolo enzulu kwaye ibangele ukungcangcazela kwamacandelo e-valve, ngaloo ndlela ichaphazela ukhuseleko kunye nokusebenza kakuhle kwenkqubo yonke. Ngenxa yokuba i-cavitation iya kuvelisa amawaka ee-atmospheres of surface impact pressure on the throttle element, ke ngoko, ngokuphucula ukuqina komphezulu we-valve core kunye nesihlalo se-valve asikwazi ukusombulula ingxaki ye-cavitation. Uyilo lwe-anti-cavitation yevalve yokulawula i-labyrinth kukusetyenziswa kwe-labyrinth core multistage step-down principle, ngokunyanzelisa i-medium ukuba ihambe ngoluhlu lwe-Angle bends echanekileyo ukuze izinga lokuhamba lilawulwe ngokupheleleyo, ukufezekisa injongo yehla. Kungakhathaliseki ukuba ukwehla koxinzelelo, ukuchasana kwezi ngqungquthela kunciphisa izinga apho imidiya inokuphuma khona kwi-core. Emva kwe-multistage depressurization, uxinzelelo lwe-medium luhlala lugcinwe ngaphezu kwe-saturated vaporization pressure ye-pv ephakathi, ngaloo ndlela ugwema i-cavitation phenomenon kunye nokuphelisa izinto ezingakhuselekanga. Ipakethe ye-labyrinth core pack yenziwe ngamacwecwe amaninzi e-labyrinth ahlanganiswe phantsi kweemeko ezikhethekileyo (usebenzisa i-adhesives imported). Isitya ngasinye se-labyrinth sicutshungulwa ngendlela egqibeleleyo yokwenza ukuba zenze inani lamatshaneli, kwaye ishaneli nganye inokudlula kumlinganiselo othile we-medium, kunye nokuchasana okuphakathi kunikezelwa ngoluhlu lwe-Angle echanekileyo igoba kwijelo. Ngokweemfuno ezahlukeneyo zabasebenzisi, ngokubala, ukukhethwa koluhlu oluhlukeneyo lwe-curve, ukwenzela ukuba isantya esiphakathi nge-labyrinth core package sihlala silinganiselwe kuluhlu oluthile. Ngokubhekiselele kumava angaphandle akhulileyo, xa izinga lokuhamba lingaphantsi okanye lisondele kwi-30m / S, impembelelo kwi-throttle element erosion incinci. Ngenxa yokuba izinga lokuhamba kunye nenani lokugoba kwi-disc ye-labyrinth liyakwazi ukuhlukahluka, kwaye ubukhulu bediski bunokuthi buyilwe ukuba bube buncinci kakhulu (umz. 2.5mm), i-valve inokuthi ilungiselelwe ukunika ulawulo lokuhamba ngokweemfuno ezithile zomsebenzisi. Ngokutsho kokusetyenziswa kwevalve kunye neemfuno zomsebenzisi, i-curve ye-flow character ye-valve elawulayo inokuqulunqwa ukuba ibe yilayini, ipesenti elinganayo, ipesenti elungisiweyo kunye nezinye iifom ze-curve ezikhethekileyo. Ngenxa yokuba indawo esebenzayo kwivalve yeplanti yamandla ilulwelo (ngokukodwa amanzi), ivalve elawula i-labyrinth inlet ngokuqhelekileyo yamkela ulwakhiwo olusondeleyo lokuhamba. Xa ukuqukuqela kohlobo lwesakhiwo, okuphakathi ukuya kumzimba wevalve, kuqala ngepakethe engundoqo, emva koko ngesiseko sevalve, emva kokuphuma okubaluleke kakhulu kwisihlalo sevalve, ukuhamba kwevalve kubonakaliswa yileyibhile kumzimba wevalve. .