Igama levalve kunye nemodeli yevalve yomzekelo wothelekiso lweentlobo zevalve, ukusetyenziswa kweevalve ezahlukeneyo.

Igama levalve kunye nemodeli yevalve yomzekelo wothelekiso lweentlobo zevalve, ukusetyenziswa kweevalve ezahlukeneyo Umzekelo 1: Ukuqhuba kombane, uqhagamshelo lweflange, isango eliphindwe kabini elineweji yentonga evulekileyo, imathiriyeli etywinayo engaphezulu yesitulo sevalvu esetyenzwe ngokuthe ngqo ngumzimba wevalvu, uxinzelelo lwegama PN = 0.1 MPa imathiriyeli yevalve yesango yentsimbi engwevu: Ukuthiywa kwevalvu Ivalve iya kuba ithiywe ngokwemo yothumelo, ifom yoqhagamshelo, ifom yolwakhiwo, imathiriyeli yelinen kunye nohlobo, kodwa oku kulandelayo kuya kushiywa kubizo: 1) Ifom yoqhagamshelo: "i-flange". 2) Kwifom yesakhiwo: A. I-valve yesango "stem", "elastic", "rigid" kunye "nesango elilodwa"; B. Ukusika uhlobo lwevalve yeglowubhu kunye nevalve ye-throttle; C. ivelufa yebhola "edadayo" kunye "ne-straight-through"; D. butterfly valve "ipleyiti nkqo"; E. Ivalve ye-diaphragm "uhlobo lophahla"; F. I-valve yeplagi "ukupakisha" kunye ne "straight-through"; G. Khangela ivalve "ngqo phakathi" kunye "neflap enye"; H. "ukungatywinwa" kwevalve yokunceda. 3) Igama lemathiriyeli ekutywinweni komphezulu wesitulo sevalvu. Umzekelo wemodeli yevalvu kunye nendlela yokulungiswa kwegama Umzekelo 1 Ukuqhuba kombane, uqhagamshelo lweflange, intonga evulekileyo yohlobo lwesango eliphindwe kabini, imathiriyeli yokutywina isihlalo sevalvu isetyenzwa ngokuthe ngqo ngumzimba wevalvu, uxinzelelo lwegama PN = 0.1 MPa imathiriyeli yevalvu yomzimba yisango lentsimbi elingwevu. ivelufa: 2942 W-1 wedge yombane uhlobo ivelufa yesango ephindwe kabini Umzekelo 2: Incwadi yezandla, uqhagamshelo lwentambo yangaphandle, ivelufa yebhola edadayo, i-straight-through, into etywinayo yomgangatho weplastiki yefluorine, uxinzelelo lwegama PN = 4.0mpa, imathiriyeli yomzimba ye-1 Cr18Ni9Ti: Q21f -40p ivalve yebhola yomsonto yangaphandle Umzekelo 3 I-pneumatic iqhele ukuvuleka, uqhagamshelo lweflange, umqolo wophahla, imathiriyeli yokwaleka kwilayini yerabha, uxinzelelo lwegama PN = 0.6mpa, imathiriyeli yevalvu yentsimbi engwevu yediaphragm ivelufa: G6k41j-6 ipneumatic iqhele ukuvuleka uhlobo lwerabha oluvulekileyo. Ivalve ye-diaphragm Umzekelo we-4 Ivalve yebhabhathane yeHydraulic, uqhagamshelo lweflange, ipleyiti ethe nkqo, into etywiniweyo yomgangatho wesihlalo yintsimbi, imathiriyeli yokutywina yediski yirabha, uxinzelelo lwegama PN-0.25mpa} Isixhobo somzimba yintsimbi ephoswe ngengwevu: D741 X-2.5 hydraulic Ivalve yebhabhathane Umzekelo 5 Ukuqhuba kwemoto, udibaniso oludityanisiweyo, uhlobo oluthe tye, isihlalo sevalve yokutywina umphezulu imathiriyeli yobuso bulukhuni, uxinzelelo olusebenzayo kwi-540 ℃ yi-17 MPa, imathiriyeli yomzimba yi-chromium-platinam-vanadium valve yeglowubhu yentsimbi: J961 Y-P54170 Ivalve yeglowubhu edityanisiweyo yoMbane Okuya kusezantsi iimfuno zokuvuza kwevalve, kokukhona, ukuvuza kwevalve yokutywina ethambileyo yeyona iphantsi, isiphumo sokusika silungile, kodwa singanxibi, singathembekanga. Ukusuka kwimigangatho ephindwe kabini yokuvuza okuncinci kunye nokutywinwa okuthembekileyo, ukutywinwa okuthambileyo akulunganga njengokutywinwa okunzima. Njengomsebenzi opheleleyo we-valve yokukhanya kwe-ultra, itywinwe kwaye ifakwe ngokukhuselwa kwe-alloy-resistant-resistant, ukuthembeka okuphezulu, izinga lokuvuza kwe-10-7, liye lakwazi ukuhlangabezana neemfuno ze-valve yokusika. 2, kutheni ivalve yokutywina kabini ingenakusetyenziswa njengevalve yokuvala? I-advanteji ye-spool ye-valve yezihlalo-ezimbini lulwakhiwo lolungelelwaniso lwamandla, oluvumela umahluko omkhulu woxinzelelo, kunye nokusilela kwayo okubalaseleyo kukuba imiphezulu emibini yokutywina ayinakudityaniswa kakuhle ngaxeshanye, ibangele ukuvuza okukhulu. Ukuba i-artificial, inyanzelekile kwizihlandlo zokusika, ngokucacileyo umphumo awulungile, nokuba wenze uphuculo oluninzi (njenge-valve yokutywina kabini), ayinqweneleki. 3. Kutheni ivalve enezihlalo ezibini kulula ukuyijikajika xa isebenza ngevula encinane? Kwisiseko esisodwa, xa i-medium luhlobo lokuhamba oluvulekileyo, uzinzo lwevalvu lulungile; Xa i-medium ivaliwe uhlobo, ukuzinza kwevalve kukubi. I-valve yezihlalo ezimbini ine-spool ezimbini, i-spool ephantsi ikwi-flow evaliweyo, i-spool ephezulu ikwi-flow evulekileyo, ngoko ke, kumsebenzi omncinci wokuvula, ukuhamba kwe-spool evaliweyo kulula ukubangela ukunyakaza kwe-valve, oku. sisizathu sokuba ivalve enezihlalo ezibini ingasetyenziselwa umsebenzi omncinci wokuvula. I-4, yeyiphi i-valve yokulawula i-valve echanekileyo yokulawula ukusebenza kakuhle, i-Angle stroke blocking valve ilungile? I-spore yevalve ye-stroke ethe tye i-throttling ethe nkqo, kwaye okuphakathi kukuhamba okuthe tyaba ukungena nokuphuma kumjelo wegumbi levalvu kufuneka ijike, ukuze indlela yokuhamba kwevalvu ibenzima kakhulu (imilo efana nohlobo lwe-S olujikiweyo). Ngale ndlela, kukho iindawo ezininzi ezifileyo, ezibonelela ngendawo yokuwa kwemvula ye-medium, ethi, ekuhambeni kwexesha, ibangele ukuvala. I-Angle stroke valve throttling direction yindlela ethe tye, ukuhamba okuthe tye ukuya phakathi, ukuphuma okuthe tye, kulula ukuyithatha indawo emdaka, kwangaxeshanye indlela yokuhamba ilula, isithuba semvula esiphakathi sincinci kakhulu, ngoko ke i-Angle stroke valve blocking. ukusebenza kuhle. 5, kutheni isikhondo sevalve esilawulayo sincinci? Ivalve yokulawula istrowuku ethe ngqo ibandakanya umgaqo olula womatshini: i-sliding friction, i-rolling friction incinci. I-valve ye-stroke ethe ngqo i-stem up and down intshukumo, ipakisha kancinane kancinane, iya kubeka iphakheji ye-stem iqinile kakhulu, ibangele umahluko omkhulu wokubuya. Ukuza kuthi ga ngoku, uyilo lwe-stem luncinci kakhulu, kwaye ukupakishwa kudla ngokusetyenziswa kunye ne-coefficient encinci ye-friction ye-ptfe yokupakisha, ukuze kuncitshiswe umahluko wokubuya, kodwa ingxaki kukuba isiqu sincinci, kulula ukugoba, kunye nobomi. yokupakisha imfutshane. Ukusombulula le ngxaki, eyona ndlela ilungileyo kukusebenzisa isiqu sevalve ejikelezayo, oko kukuthi, uhlobo lwe-Angle stroke yevalve elawulayo, isiqu sayo kunesiqu esityebileyo se-2 ~ 3, kwaye ukhethe ukupakisha ubomi obude begraphite, ukuqina kwesiqu kulungile, ukupakisha. ubomi bude, itorque yefriction incinci, incinci ngasemva. I-6, kutheni i-valve ye-Angle stroke inqumle umahluko woxinzelelo mkhulu? I-Angle stroke valve inqumle umahluko woxinzelelo mkhulu, kuba imidiya kwi-spool okanye ipleyiti yevalve kwi-torque eveliswa yi-shaft ejikelezayo incinci kakhulu, ngenxa yoko, inokumelana nomahluko omkhulu woxinzelelo. 7. Kwakutheni ukuze isivalo somkhono singene endaweni yesitulo esinye nesihlala kabini? Ukufika kwevalve ye-sleeve ngeminyaka yee-1960s, i-1970s kumanani amaninzi okusetyenziswa kwasekhaya nakwamanye amazwe, ukuqaliswa kwezixhobo zepetrochemical kwiminyaka yee-1980s zabalelwa kumlinganiselo omkhulu, ngelo xesha, abantu abaninzi bakholelwa ukuba ivalve yomkhono inako. buyisela enye, ivalve yesitulo esiphindwe kabini, ibe sisizukulwana sesibini seemveliso. Ukuza kuthi ga ngoku, oku akunjalo, iivalve zesitulo esinye, iivalve zezihlalo ezimbini, iivalve zemikhono zisetyenziswa ngokulinganayo. Oku kungenxa yokuba ivalve yomkhono iphuculwe kuphela imo yokuthontsiza, uzinzo kunye nokugcinwa ngcono kunevalve yesitulo esinye, kodwa ubunzima bayo, izikhombisi ezithintelayo kunye nokuvuza kunye nevalve yesitulo esinye, esiphindwe kabini, ingayibuyisela njani ivalve yesitulo esinye, esiphindwe kabini? Ngoko ke, inokusetyenziswa kuphela kunye. 8, kutheni kusetyenziswe amanzi okucoca amanzi aphakathi kwerabha anemigca yebhabhathane, i-fluorine ene-diaphragm valve ubomi obufutshane? Umthamo wamanzi anetyuwa uqulethe ukuxinwa okuphantsi kweasidi okanye ialkali, enokonakala okukhulu kwirabha. I-corrosion ye-rubber ibonakala njengokwandiswa, ukuguga, amandla aphantsi, kunye nefuthe lokusetyenziswa kwe-valve ye-butterfly kunye ne-valve ye-diaphragm ehlanganiswe ne-rubber impofu, kwaye i-essence yayo ibangelwa ukuxhathisa i-rubber corrosion. Emva kokuba ivalve ye-diaphragm enerabha elayitiweyo iphuculwe ukuya kwivalve ene-fluorine ene-diaphragm enokumelana nokutyiwa kakuhle, kodwa i-diaphragm yevalve ene-fluorine ene-diaphragm yophulwe ngokusongwa phezulu naphantsi, okukhokelela kumonakalo womatshini, kwaye ubomi bevalve bufutshane. Ngoku eyona ndlela ilungileyo kukunyanga ivalve yebhola ngamanzi, ingasetyenziswa iminyaka emi-5 ukuya kweyi-8. 9. Kutheni zisetyenziswa ngakumbi nangakumbi ii-piston actuator kwiivalvu zomoya? Kwiivalvu ze-pneumatic, i-actuator ye-piston inokusebenzisa ngokupheleleyo uxinzelelo lomthombo womoya, ubukhulu be-actuator buhlangene ngakumbi kunohlobo lwefilimu, i-thrust inkulu, i-o-ring kwi-piston ithembekile ngaphezu kwefilimu, ngoko ke. ukusetyenziswa kwayo kuya kuba ngakumbi nangakumbi. 10. Kutheni ukukhetha kubaluleke ngaphezu kokubala? Ukubala kubaluleke kakhulu kwaye kuntsonkothile kunokhetho. Ngenxa yokuba ukubala kuyindlela elula yokubala ifomyula, yona ngokwayo ayixhomekeke kwinqanaba lefomula, kodwa ngokuchaneka kweeparameters zenkqubo enikeziweyo. Ukukhethwa kubandakanya umxholo omninzi, ukungakhathali okuncinci, kuya kukhokelela ekukhethweni okungafanelekanga, kungekhona nje ukuba kubangele inkunkuma yabantu, izinto eziphathekayo kunye nemithombo yemali, kodwa kunye nokusetyenziswa kwesiphumo akulungile, ukuzisa inani leengxaki zokusetyenziswa, ezifana nokuthembeka. , ubomi, umgangatho wokusebenza njalo njalo.