Ivaluve ingqiqo eqhelekileyo: ivalve yesitywina kunye nokusebenza ivelufa eqhelekileyo yesango: ivelufa yesango elidityanisiweyo kunye nevalve yesango elinxuseneyo

Ivaluve ingqiqo eqhelekileyo: ivalve yesitywina kunye nokusebenza ivelufa eqhelekileyo yesango: ivelufa yesango elidityanisiweyo kunye nevalve yesango elinxuseneyo

I-valve ingqiqo eqhelekileyo: isitywina sevalve kunye nokusebenza
(I) Isitywina seValve kunye nokusebenza
I-1, i-valve kwindibano yokugqibela kufuneka iqhutywe emva kovavanyo lokusebenza, ukujonga ukuba imveliso ihlangabezana neemfuno zoyilo kunye nokuba ihlangabezana nemigangatho yelizwe. Iziphene kwizixhobo zevalve, izikhewu, unyango lobushushu, umatshini kunye nokudibanisa ngokubanzi kunokuvezwa ngexesha lovavanyo. Uvavanyo oluqhelekileyo lubandakanya uvavanyo lwamandla eqokobhe, uvavanyo lokutywina, uvavanyo lokutywinwa koxinzelelo oluphantsi, uvavanyo lwesenzo, njl., kwaye ngokwemfuno, uvavanyo olulandelayo luya kwenziwa emva kokuphumelela uvavanyo ngokulandelelana.
I-2, uvavanyo lwamandla: i-valve inokuthathwa njengesitya soxinzelelo, ngoko ke kufuneka ihlangabezane neemfuno zokuthwala uxinzelelo oluphakathi ngaphandle kokuvuza, ngoko ke umzimba wevalve, isivalo sevalve kunye nezinye iindawo ezingenanto akufanele zichaphazele amandla okuqhekeka. , i-pores ekhululekile, i-slag kunye nezinye iziphene. Ukongezelela ekuhlolweni okungqongqo kwembonakalo kunye nomgangatho wangaphakathi we-valve, umenzi we-valve kufuneka kwakhona enze uvavanyo lwamandla ngamnye ukuqinisekisa ukusebenza kwevalve.
I-3, imbangela yokuvuza kwevalve yokunciphisa uxinzelelo
Njengenxalenye ebalulekileyo yenkqubo ye-hydraulic, umsebenzi ophambili wevalve yokunciphisa uxinzelelo kukwenza uxinzelelo lokuphuma kwenkqubo luhlale luphantsi kunenqanaba loxinzelelo lokungena, ukugcina uzinzo loxinzelelo lokuphuma kwenkqubo, kunye Uxinzelelo lokuphuma kwenkqubo aluchatshazelwa luxinzelelo lwe-inlet kunye nokuguquguquka kokuhamba; Nangona kunjalo, xa indawo yokutywina yoxinzelelo lokunciphisa i-valve ivuza, ayichaphazeli nje kuphela imveliso eqhelekileyo, kodwa ibangela ukulahleka kweoli ye-hydraulic kunye nokungcoliswa kwendalo; Kwi-Marine hydraulic system, ivalve yokunciphisa uxinzelelo njengeyona nto iphambili yokulawula, ukubaluleka kwayo kokutywinwa akufanele kujongelwe phantsi. Emva kophando oludibeneyo kunye nohlalutyo kunye neengcali ezifanelekileyo zifumene ukuba ukutywinwa phakathi komkhono wokudibanisa wevalve yokunciphisa uxinzelelo kunye nomzimba wevalve kuxhomekeke ikakhulu kwi-O-ring phakathi komkhono wokudibanisa kunye nodonga lwangaphakathi lomzimba wevalve ukutywinwa okujikelezayo, ukutywinwa xa sele kusebenze, ukuvuza kwayo ngaphandle akunakuphepheka.
I-4, uvavanyo lwevalve yebhabhathane kunye nofakelo kunye neendlela zokusombulula ingxaki
Ivalve yebhabhathane nokuba yenziwa ngesandla, ipneumatic, hydraulic, electric parts are strict debugging phambi kokuba ziphume, umsebenzisi xa kuphinda kuhlolwe ukusebenza kokutywina, kumacala omabini okungenisa nokuthengisa ngaphandle aya kulungiswa ngokufanayo, vala ivalve yediski, uxinzelelo lokufunxa. kwicala, kwicala lokuthumela ngaphandle ukujonga ukuba ngaba into evuzayo, phambi kovavanyo, amandla kumbhobho kufuneka avule icwecwe lediski, ukuthintela umonakalo kwitywina.
Nangona iimveliso zihlolwe ngokungqongqo kwaye zivavanyiwe ngaphambi kokuba zihambe kumzi-mveliso, kukho ukufuduswa okuzenzekelayo kwezinye iimveliso ngexesha lokuthutha, ezifuna ukulungiswa kwakhona, i-pneumatic, i-hydraulic, njl., nceda ufunde imiyalelo yokusebenza yesixhobo esixhasayo sokuqhuba.
Xa i-valve ye-disc yombane yombane ishiya i-factory, i-stroke yokuvula kunye nokuvala indlela yokulawula ilungisiwe. Ukuze uthintele ulwalathiso lokutshintsha kwamandla alunganga, umsebenzisi okokuqala emva kokutshintsha amandla, vula incwadi yokuqala ukuya kwindawo evulekileyo yesiqingatha, ngokuhambelana nokutshintsha kombane ukujonga isalathiso sepleyiti kunye nevalve. ulwalathiso oluvaliweyo lunokuhambelana.
I-5, ivalve yokulawula ipneumatic/i-pneumatic cut-off valve icinezelwe ngumoya njengomthombo wamandla, isilinda njenge-actuator, kwaye ngokusebenzisa i-valve positioner yombane, iziguquli, ivalve ye-solenoid, ivalve yokuqhuba ivalve efana noncamathiso, qonda ubungakanani bokutshintsha. okanye ulungelelwaniso lohlobo lomlinganiselo, inkqubo yokulawula i-automation system ifumana isiginali yokulawula ukugqiba ukulawula ukuhamba kombhobho ophakathi, uxinzelelo, ubushushu kunye nezinye iiparamitha zenkqubo. Ivalve yokulawula umoya ibonakaliswe ngolawulo olulula, ukuphendula ngokukhawuleza, kunye nokhuseleko lwangaphakathi, akufuneki ukuba ithathe amanyathelo obungqina bokudubula kwakhona.
I-6, i-valve ye-butterfly yensimbi engenasici kwinkqubo yokusetyenziswa kwe-rust phenomenon. Ngohlalutyo lwesakhiwo se-metallographic, ukutyhutyha ubuso bovavanyo, ubuso bovavanyo lobushushu, i-SEM kunye nezinye iimvavanyo, kufunyaniswa ukuba eyona nto iphambili yokubola kwezinto kungenxa yokuba i-carbide idlula imida yeenkozo kwizinto ukuze yenze indawo ehlwempuzekileyo ye-chrome, okukhokelela ekubeni ukudleka kwevalve yebhabhathane yentsimbi. Ivalve yebhabhathane yentsimbi engenastainless eyenziwe ngeCF8M idliwe xa isetyenziswa. Emva konyango oluqhelekileyo lobushushu, isakhiwo se-austenitic stainless steel kufuneka sibe yi-austenitic kwiqondo lokushisa, kwaye ukuxhathisa kwe-corrosion kulungile. Ukuze kuhlalutywe isizathu sokutya kwevalve yebhabhathane, iisampulu zathathwa kuyo ukuze zihlalutywe.
(ii) Iindlela zokutywinwa kwetywina kunye nokuvuza kwetywina
Kukho izinto ezininzi ezichaphazela ukutywinwa kwe-flange. Ezona ziphambili zezi: ukulayishwa kwangaphambili kwebholiti; Uhlobo lomphezulu wokutywina; ukusebenza kweGasket; Ukuqina kweFlange; Iimeko zokusebenza. Iiflange ze-ANSI ziyilwe yi-American National Standards Institute ukubonelela i-oyile kunye ne-gas imboni ye-oyile kunye ne-teknoloji yokutywina efanelekileyo kunye nesebenzayo iminyaka emininzi. Nangona kunjalo, njengoko iimfuno zeshishini leoli kunye negesi zitshintshile, ukusilela kwe-ANSI flange kuye kwavezwa. Umgaqo-siseko wokuphumelela kweendleko, ukhuseleko lokusingqongileyo, kunye nempilo yabantu kunye neziqinisekiso zokhuseleko yinto abaqhubi kunye neekontraki ezijongene nazo kwinkulungwane yama-21.
Isiphelo:
Uyilo olutsha kunye nokufakwa kwenkqubo yokulawula, ukuze kuqinisekiswe ukuba umlawuli unokusebenza ngokuqhelekileyo xa eqhuba, kwaye enze inkqubo yokusebenza ekhuselekileyo, i-valve entsha ngaphambi kokufakwa, kufuneka iqale ihlolisise uphawu lwegama le-valve luhambelana neemfuno zoyilo. Ezi projekthi zilandelayo kufuneka nazo zilungiswe. Umda wemposiso esisiseko; Ukutenxa ngokupheleleyo kwe-stroke; Buyela kumahlwempu; Indawo efileyo; Ukuvuza (kwimeko yeemfuno ezingqongqo). Ukuba yinkqubo yokuqala yevalve elawulayo iye yagqithiswa, ukongeza kwitshekhi engentla, kodwa kwakhona kufuneka ibe yibhokisi yokufaka ivalve endala kunye neenxalenye ezidityanisiweyo zetshekhi yokutywina.
Ivalve yesango yevalve yohlobo: Ivalve yesango elidityanisiweyo kunye nevalve yesango enxuseneyo ivelufa isetyenziswa njengendawo esikiweyo, ivuleke ngokupheleleyo xa yonke ihamba ngokuthe ngqo, ilahleko yoxinzelelo olusebenzayo oluphakathi yi ** * 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.
Ivalve yesango isetyenziswe njengendlela yokusika, ukuhamba konke kuhamba ngokuthe tye xa ivuliwe ngokupheleleyo, kwaye ilahleko yoxinzelelo lwe-medium running ** * 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.