Jonga umfanekiso oMkhulu
Izivalo zemizi-mveliso azihlali ngonaphakade.Nazo azibizi ngexabiso eliphantsi.Kwiimeko ezininzi, ukulungiswa kuqala kwiminyaka eyi-3-5 yokusetyenziswa.Nangona kunjalo, ukuqonda kunye nokwazi izizathu eziqhelekileyo zokungaphumeleli kwevalve kunokwandisa inkonzo yobomi bevalvu.
Eli nqaku libonelela ngolwazi malunga nendlela yokulungisa iivalve eziphosakeleyo, izizathu eziqhelekileyo zokuba kutheni iivalve zifuna ukulungiswa kunye neempawu zokuba i-valve sele iphosakele.
Yintoni eyenza iiValves zihlale ixesha elide
Ubomi bevalve buxhomekeke kwizinto ezintathu: umgangatho wetywina, indawo yangaphakathi nangaphandle kunye nokuphindaphinda kokusebenza.
Ukuba itywina lisebenza ngokugqibeleleyo, ivalve isebenza kakuhle nayo.Ukukhetha isitywina esifanelekileyo kuqinisekisa ukusebenza kakuhle kunye nokugcinwa.
Ngakolunye uhlangothi, izinto ezifana noxinzelelo, ubushushu, kunye nohlobo lweendaba zifanelekile ukuqwalaselwa.Okokugqibela, ukuba i-valve isebenza ngalo lonke ixesha, ixesha lokugcinwa lijikeleze iinyanga ezi-3 ukuqinisekisa imeko efanelekileyo.
Indlela yokwazi ukuba lixesha lokulungisa iivalvu
#1 Xa kukho ukuvuza kwangaphakathi
Esinye sezizathu ezibangela ukuba kubekho ukuvuza kwangaphakathi kukuba ivalve ayinakuba nokuvalwa ngokupheleleyo.Ngokwemigangatho yamazwe ngamazwe, uhlobo ngalunye lwevalvu lunobuninzi obuvumelekileyo bokuvuza (MAL).Uphawu olubonisa ukuba isivalo sifuna ukulungiswa kuxa ukuvuza kungaphaya koluhlu olufunekayo lwe-MAL
#2 Xa kukho ukuvuza kwangaphandle
Kukho amatyala ambalwa okuba kutheni kukho ukuvuza kwangaphandle.Kwiimeko ezininzi, kubekho ulondolozo olungafanelekanga.Kwakhona kunokwenzeka ukuba izinto eziphathekayo zevalve kunye neendaba azihambelani.Ubushushu obugqithisileyo bunokubangela ukuvuza kwangaphandle.
#3 Xa ivalve iba nengxolo
Ihamile yamanzi ligama elisetyenziswa kwimizi-mveliso ukuchaza isandi esenziwa ziivalvu.Esi sibonakaliso sokuba i-valve idinga ukugcinwa.Idiskhi ebetha isitulo sevalve ibangela le ngxolo.
#4 Xa ivalve ingasasebenzi
Ngokucacileyo, xa ivalve ingasasebenzi, lixesha lokuyisindisa okanye ukuyilungisa.Ngelixa iivalvu ezininzi zinokulungiswa, kukho ezo ziphantse zingenzeki.
Iimbangela eziqhelekileyo zokuFayiswa kweValve yeShishini
#1 Ubungakanani beValve engafanelekanga
Ukubalwa kobungakanani bevalve engalunganga kunokukhokelela kwiivalvu ezingaphantsi okanye ezingaphezulu.Oku kubalulekile kuba ukuhamba kweendaba kuxhomekeke kubukhulu bevalve.Umntu okhulu kakhulu unokunciphisa uxinzelelo ngelixa ivalve encinci inokubangela imiqobo.
Isisombululo
Fumana isixhobo sokubala sokulinganisa ivalve kwi-intanethi.Kukho iifomula ezahlukeneyo zolwelo kunye neegesi.Ukuba ukubala ngesandla kuyadinisa kakhulu, umntu okwi-intanethi uya kwenza nje iqhinga.
Oku kuya kwenza ukukhangela uhlobo oluchanekileyo lwevalve lula kakhulu.Njengenqaku lokubhekisela, jonga kwakhona ixabiso le-Kv elifunyenwe kwinkcazo yemveliso.Kwakhona, qwalasela izinga lokuhamba elifunekayo kunye noluhlu lokuhla koxinzelelo.
#2 Ukungahambelani kwezinto
Uhlobo lwemidiya, imathiriyeli yesihlalo kunye nemathiriyeli yevalvu yomzimba kufuneka ihambelane.Ukungahambelani kuthetha ukuba ivelufa ithanda ukunxiba nokukrazuka.
Isisombululo
Jonga inkcazo yemveliso yohlobo lwezinto ezisetyenziselwa isihlalo sevalve kunye nomzimba.Oku kufuneka kulandele imigangatho yoshishino malunga nokuba yeyiphi imidiya enokusetyenziswa.Kwakhona, jonga umonakalo wevalvu ukuba ukrokrela ukuba kukho ukusetyenziswa okungalunganga kwezinto.Ukutshintsha ivalve kuyabiza.Buyisela amalungu adityaniswe namajelo eendaba kwinto enokumelana nayo.
#3 Umonakalo weElastomer
Iilastomers zihlala zisetyenziswa njengezihlalo zevalvu, iigaskets okanye ii-O-rings ezisebenza njengetywina.Ngenxa yokuba zi-elastic, zilukhetho lwendalo lokutywinwa kwezicelo.Oku kukwanqanda ukudibana nomzimba wevalvu yesinyithi kunye nemidiya.Imizekelo yee-elastomers ezisetyenziswa kwimizi-mveliso ziquka i-nitrile, iAflas, kunye neTeflon.
Umonakalo wokunxitywa kwe-elastomer ubangelwa yintshukumo yendalo yolwelo.Ngokuqhelekileyo, unobangela uya kuba kukungahambelani kwe-elastomer kunye nemidiya.
Isisombululo
Cinga ngokuhambelana kwe-elastomer kunye nemidiya.Jonga inkcazo yemveliso malunga nokuba zeziphi iintlobo zemidiya oza kuzisebenzisa kunye ne-elastomers.Xa uthenga, khangela inkcazo yevalve.Ukuba i-elastomer ayihambelani, fumana amanye amacandelo okutywina alungele i-elastomer.
Nje ukuba itywina le-elastomer linezibonda, iintanda kunye nezinto ezithandwayo sele zibonakala, buyisela eli candelo.Kwakhona, khangela ukuba kukho iipatheni zokugqoka ezilandela ukuhamba kweendaba, kuthetha ukuba okokugqibela kuyingozi kakhulu.
#4 Ukunxiba kweSikhondo seValve
Amacandelo amancinci afana ne-valve stem packing okanye iibholithi ze-gland zibangela ukuguga kunye nokukrazula kwisiqu.Ngaphezu koko, ukunyakaza okuqhubekayo kwediski ye-valve, kunye nokuqhagamshelana ne-corrosive, kukwanegalelo ekugubungeleni kwesiqu.
Ukupakishwa kwe-stem, ukungabikho kwe-elasticity okunciphisa i-gap yokutywina kubangela ukunxiba.Oku kuyinyani ngokukodwa kwimeko yokudibanisa izinto zokupakisha ezinelastic kunye neebholiti zegland.
Isisombululo
Kwiivalve ezincinci, isisombululo kuphela kukubuyisela emva kwayo yonke into, zifumaneka ngokulula.Nangona kunjalo, kwiivalvu ezinkulu, ukutshintshwa akubizi mali.Isisombululo esona sisisombululo kukuphucula ivalve yangoku.
Ngaphambi kokuba ujonge isiqu, jonga amanye amacandelo amancinci kuqala njengezikhonkwane zamadlala, iibholiti kunye neebhokisi zokuhlohla.Inyathelo elilandelayo kukukhangela isiqu ukuba sifuna ukuphinda sisebenze okanye sitshintshwe.
#5 Cavitation
I-Cavitation idla ngokuvela kwiivalve zokulawula kunye nemidiya ye-liquid.Izinto ezimbini ezifaka isandla kwi-cavitation yi-fluid velocity kunye nokuhla koxinzelelo.I-Cavitation iyenzeka xa kukho utshintsho kumanqanaba oxinzelelo kunye nesantya sombane.
Amaqamza enza xa uxinzelelo lolwelo lungaphantsi kunoxinzelelo lomphunga kwivalve.La maqamza ngandlel 'ithile anqande ukuhamba kwemidiya.Xa uxinzelelo lwamanzi lubuyela kwinqanaba elincitshisiweyo, amaqamza ayawa, abangele umonakalo kwivalve.Ungayijonga inkqubo kwividiyo ye-cavitation.
Isisombululo
Qinisekisa ukuba usetyenziso lusebenzisa ivalve efanelekileyo.Ukuba isitayile esingalunganga okanye ubungakanani, kukho ithuba elikhulu le-cavitation.Sebenzisa i-anti-cavitation valves kusetyenziso lwamanzi kunye nolwelo.Ukuba usebenzisa iivalve zokulawula, zibeke kwiindawo apho i-valve ine-orientation ephantsi ngokumalunga nemibhobho.
#6 Ihamile yamanzi
Ihamile yamanzi yimeko apho kukho i-spikes yoxinzelelo ngokukhawuleza kwivalve.Ngowona mandla awonakalisayo anokuthi enze umonakalo kumzimba wevalvu.Izinto ezintathu zenza ihamile yamanzi: indlela ivalve evala ngayo, isantya esingakanani ulwelo xa ivalve ivala kwaye yintoni amaza oxinzelelo ecaleni kombhobho.Unokujonga le vidiyo ukuze ufumane enye intshayelelo yehamile yamanzi.
Ezinye izinto ezibalulekileyo ezifaka isandla kule ngqungquthela bubunzima be-valve cavity yangaphakathi, amandla ombhobho kunye noxinzelelo lweendaba.
Isisombululo
Sebenzisa ivalve yokuthomalalisa ukunciphisa isando samanzi.Kwakhona, sebenzisa ivalve esebenza ngokukhawuleza kwi/evalayo njengevalve yebhabhathane.Isenzo esicothayo sikwafanelekile njengoko oku kunciphisa uxinzelelo lwehamile yamanzi.Esikhundleni sokuvula nokuvala ivalve ngesandla, sebenzisa i-hydraulic actuator ukuvumela ukuvula nokuvala ngokukhawuleza.
#7 Uxinzelelo kunye nobushushu obugqithise iiparamitha ezifunekayo
Iivalvu zineemfuno ezithile zoxinzelelo kunye nobushushu.Ukuya ngaphaya koko ivalve inokumelana nayo kunokuyonakalisa.
Isisombululo
Ngaphambi kokufakela, khangela iimfuno zemveliso ukuqinisekisa ukuba akukho xinzelelo kunye nokunyuka kweqondo lokushisa okwenzekayo.Ukugcinwa rhoqo kunye nokulungiswa kubalulekile.Shintsha iindawo ezonakalisiweyo ngenxa yokwanda kobushushu kunye nomonakalo woxinzelelo.
#8 iFaulty Actuator
I-Actuator iza ngeendlela ezintathu: ngesandla, i-powered okanye i-automatic.I-Actuator ilawula ukungena kunye nokuphuma kweendaba kunye nokuhamba kweendaba, uxinzelelo, kunye nobushushu.Oko kuthethiweyo, ukukhetha i actuator engalunganga kunciphisa ubomi bevalve kuba ivalve iguga ngokulula.
Ukusetyenziswa ngendlela engafanelekanga kwamandla ombane kunokubangela ubushushu obugqithisileyo.Ayisiyiyo kuphela into yokuba ukushisa okugqithisileyo kunokubangela umlilo, kodwa kunokuyonakalisa ngokupheleleyo i-actuator.
Isisombululo
Igalelo elinamandla elisuka kwi-actuator inokonakalisa isiqu sevalve kunye nediski xa ivalve imi kwindawo yokuvala okanye ukuvula.Ukuba ijelo leendaba lihamba kade, khetha ii-activators ezilungele oku.Ukuba unqanda ukuphulukana noxinzelelo, khetha i-activator enokuvulwa okanye ivale ngokulula.
Ukwazi ukuba ivalve yonakele okanye sisishukumisi nje esisebenza ngokungaqhelekanga, vula i-ovayidi yesandla.Ivalve ibonakala ilungile, i-actuator yonakele.
Ukuba ivalve ayishukumi, ingxaki yi actuator.Ukongeza, khangela i-valve stem ukuba kukho nawuphi na umonakalo.Isiqu sevalve esigugileyo sichaphazela indlela i actuator ehamba ngayo.
Ukufakela amacandelo alo abuthathaka kufuneka kube kude kwi-actuator xa kukho uxinzelelo oluphezulu okanye ukwenzeka kwee-vibrations eziphezulu.Oku kukukhusela iindawo ezibuthathaka emonakalweni.
I-NEMA (i-National Electrical Manufacturers Association) imisele iireyithingi kwiivalvu zombane ukwenzela ukhuseleko.
#9 Ufakelo olungachanekanga
Ezinye iivalve kulula ukuzifaka kunezinye.Ngokudabukisayo, iimeko ezininzi zokungaphumeleli kwevalve zivela kufakelo lwevalvu engachanekanga.Thatha umzekelo wokufakelwa kweevalvu zokujonga ujingi.Abanye abantu bebezifakela ngendlela engeyiyo.Kukho iisimboli ekufuneka uzilandele ukuze ufakelo lula.
Isisombululo
Iivalvu ezininzi zifakwe kwindawo emileyo ngaphandle kokuba kuchaziwe.Qinisekisa ukuba umntu ofaka i-valve unezakhono ezaneleyo kunye noqeqesho ukuze enze umsebenzi ngokufanelekileyo.
#10 Ukusebenza okungafanelekanga kunye nokuseta umahluko woxinzelelo
Uxinzelelo lokusebenza sisixa soxinzelelo lokwenene olukhoyo xa usebenza.Ngakolunye uhlangothi, ukuseta uxinzelelo luxinzelelo oluqhelekileyo umqhubi wombhobho omisela inkqubo yepayipi.Ingxaki ihlala ivela uxinzelelo lokusebenza lusondele kuxinzelelo olubekiwe.
Isisombululo
Jonga ingqibelelo yevalvu.Ngokukodwa jonga kwidiski yevalve, isihlalo kunye nesiqu.Kwakhona, khangela ukuvuza.Tshintsha iindawo ezonakalisiweyo ukuba kuyimfuneko.
Izinto ezifana nezixhobo zevalve, imidiya, ukuxinwa kwesihlalo, phakathi kwezinye, beka ubuncinane be-10% umahluko phakathi koxinzelelo olusebenzayo kunye nokusetha.Nangona kunjalo, umahluko ofanelekileyo ngama-20%.
#11 Ukubuyela umva
Ukubuyela umva kubhekiselele kwimeko apho ukuhamba kweendaba kutshintsha ngokukhawuleza.Oku, kunye nehamile yamanzi, zimbini zezona zizathu zixhaphakileyo nezonakalise kakhulu zomonakalo wevalvu.
Isisombululo
Uthintelo ngundoqo.Ukufaka ivalve yokutshekisha ethe cwaka okanye nayiphi na ivalve evala ngokukhawuleza inokuphucula kakhulu ukusebenza kwevalvu.
#12 Inkunkuma
Amasuntswana atyebileyo anjengakwi-slurries abangela ama-brasions esitulweni.Ezi zinokuxinga kwiivalvu, zenze ivalve ihlale ivuliwe okanye ivaliwe.Ukongezelela, i-debris, xa iqina kwi-valve, inokubangela ukuba i-valve iphuke.
Isisombululo
Ukugcinwa rhoqo kunye nokucocwa kwevalvu kubalulekile.Ezi zisusa i-debris kwaye zithintele i-debris ukuba ibe lukhuni kwaye yonakalise ngakumbi iivalvu
#13 Ugcino kunye noLungiso olungachanekanga
Ukulungiswa kunye nokugcinwa okungalunganga akonakali nje kuphela, kodwa kukwabiza kwaye kudla ixesha.
Isisombululo
Qinisekisa ukuba ivalve ukuqhelaniswa nayo ichanekile.Sebenzisa izikhokelo kumzimba wevalvu ezinokunceda kufakelo olululo lwevalvu.Qinisekisa ukuba ulwalathiso luyalandelwa ngokubhekiselele kwivalvu.
IiNdlela eziNgcono zokuNqanda iiFayile zeValve
Njengakwiimeko ezininzi, uthintelo lungcono kunokunyanga.Ukugcinwa rhoqo kwenziwa ngamagcisa anezakhono eziphezulu.Amaxesha amaninzi, imiba yeevalvu ivela ngenxa yempazamo yomntu.Ukusombulula le ngxaki, qesha abasebenzi abanezakhono nabaqeqeshwe kakhulu ukufaka nokugcina ivalve kunye nenkqubo yemibhobho.
Ukucoca iivalvu kunye nokuqinisekisa ukuba azinayo inkunkuma.Ukuba kuyimfuneko, fakela izihluzi ukwahlula inkunkuma kwi-media media.Gubha imibhobho ukunciphisa ukwakheka.
Ukongeza koku, thambisa ivalve.Ivalve yenziwe ngamalungu amancinci ashukumayo.Ukuthambisa oku kuthetha ukukhuhlana okuncinci, okunciphisa ukuguga kunye nokuphucula ukusebenza.
Qwalasela iivalvu kunye namalungu ayo amaxesha ngamaxesha.Buyisela amacandelo abonise umonakalo.Oku kuya kwandisa ubomi benkonzo yevalve.Kwakhona, qiniseka ukuba iivalvu zifakwe ngokufanelekileyo.
Isishwankathelo
Ukutshintshwa kwevalvu kubiza kakhulu.Yiyo loo nto ukufumana iivalvu ezomeleleyo ezinezatifikethi ezifanelekileyo zokhuseleko kuyimfuneko.Ngalo lonke ixesha jonga iivalvu kuphawu lokuqala lomonakalo wevalvu, lungisa oko kufuneka kulungiswe kwaye ubuyisele iindawo ezonakeleyo.
Ixesha lokuposa: Feb-25-2022