Ingxoxo ngokusetyenziswa kweevalvu zemiqondiso yeevalvu zokulawula umbhobho womlilo kwizakhiwo eziphakamileyo

Ingxoxo ngokusetyenziswa kweevalvu zemiqondiso yeevalvu zokulawula umbhobho womlilo kwizakhiwo eziphakamileyo

Ushwankathelo: Ingcebiso kwisakhiwo sombhobho womlilo okwindawo ephakamileyo kusetyenziswa iingxoxo zevalvu yomqondiso
Amagama angundoqo: ivalve yesignali yevalve yesakhiwo esinesakhiwo esiphakamileyo
Ngokwamalungiselelo "Ikhowudi yoYilo loThintelo loMlilo lweZakhiwo zoLuntu eziphakamileyo", kwinkqubo ye-hydrant yangaphakathi yomlilo, umbhobho wokuhambisa amanzi kufuneka uhlukaniswe ngamacandelo amaninzi **, kwaye i-valve kufuneka ibe neempawu ezicacileyo ezivulekileyo nezivaliweyo. Oku kwenzelwa ukuba inani lemibhobho ye-hydrant ingabi ngaphantsi kwesinye xa kusenziwa inkonzo.
Ngophuhliso loyilo lwangoku, ukwakhiwa kwemibhobho eyahlukeneyo yemfuno entle kufuneka kufihlwe kangangoko kunokwenzeka ukuhombisa, ke ngoko, imibhobho ye-hydrant kwisilingi, i-tube well, ixhaphakile, kodwa le yingxaki, eyivalve yolawulo umbhobho we-hydrant womlilo ovulekileyo awukwazi ukufumana iliso, ukubangela umbhobho womlilo unokusetyenziswa okuqhelekileyo. Nantsi eminye imizekelo:
Iprojekthi ye "State Grid Control Centre ye-Ofisi yoMbane woMbane" ihlanganisa indawo yokwakha engaphezu kwama-50,000 square metres, enemigangatho emithathu engaphantsi komhlaba kunye nemigangatho engama-27 ngaphezu komhlaba. Ubude besakhiwo bungaphezulu kweemitha ezili-110. Sisakhiwo esibanzi esilumkileyo esidibanisa umyalelo wemveliso kunye nokuthunyelwa, iofisi kunye nemisebenzi yenkomfa, kunye neqondo eliphezulu lokuzenzekelayo kunqabile eChina. Kuyilo lwenkqubo yokutshiza iwayini ngokuzenzekelayo, ndasebenzisa iivalvu zesignali phambi kwazo zonke izikhombisi zokuhamba kwamanzi, ngoko ke imeko yenkqubo inokuboniswa kwiziko lokulawula umlilo, kwaye iingxaki zinokufumaneka kwindawo ecacileyo. Ukongezelela, ukulawulwa komgangatho wamanzi wobomi kunye nokulwa nomlilo, kunye nokuqala kunye nokuyeka kwempompo yomlilo nazo zibekwe esweni ngokufanelekileyo. Kuphela ivalve yokulawula yenkqubo yombhobho womlilo ngokuhambelana nokucaciswa kwevalve eqhelekileyo, ineempawu ezicacileyo zokuvula nokuvala, kodwa ayinakuboniswa kwiziko lolawulo lomlilo, ukongezelela, ezi zivalo zifumaneka kumbhobho kakuhle. kunye nesilingi kwiimfuno zobuhle, umgangatho wabasebenzi bangoku awukwazi ukuqinisekisa ukuthembeka kwenkqubo. Kwinkqubo yokukhusela umlilo kwinkqubo yokwamkelwa, nangona ubunkokeli bekomkhulu leprojekthi yobulungiseleli, iiyunithi zokwakha kunye neeyunithi zoyilo zinzulu kakhulu, zenze ukuthunyelwa kunye nokulungiswa kwangaphambili, kuhlaziywe kakuhle, kodwa kwinkqubo yesebe lomlilo elisemthethweni ngokwenene. ukwamkelwa, kodwa kukho ingxaki, kukho i-hydrant fire hydrant kwi-standpipe kunjalo nayo ayikwazi ukuphuma emanzini, kunye nezinye ezine ziqhelekileyo, Asikwazi ukufumana ingxaki kwiziko lokulawula umlilo. Emva kokuhlolwa, kwafunyaniswa ukuba iivalve zokulawula kuzo zombini iziphelo zokunyuka zivaliwe ngenxa yokugcinwa, kwaye abasebenzi abazange bavule iivalve emva kokugcinwa, okwenza ukuba umbhobho womlilo ungamanzi.
Ndicinga ukuba, kwimeko apho wonke umntu uncamathela ukubaluleka okukhulu, kusabonakala olu hlobo lwengxaki, kwaye ngokuqhelekileyo kwimeko yokukhubazeka okulula ngakumbi abazi ukuba luhlobo luni lwengxaki oluya kuvela. Oku kunxulumene nokuba isitshixo sombhobho womlilo sisitshixo kusetyenziso olunengqiqo lweengxaki, kwaye unqande le meko ibonakale * * Indlela ethembekileyo kukucima ivalvu yolawulo lwenkqubo yombhobho womlilo imiselwe kwivalve yomqondiso, kunye nevalve evulekileyo ukubonisa embindini. yolawulo lomlilo, ukuze ukuhlolwa kwabasebenzi bolawulo, nangona ixabiso liye landa, nangona kunjalo, Umlinganiselo wotyalo-mali kuyo yonke inkqubo yombhobho womlilo usemncinci kakhulu, kwaye unokwenza ukhuseleko lwenkqubo yokucima umlilo ** ukuphuculwa, nto leyo Ndicinga ukuba lufanelekile utyalo-mali.
Ivalve yolawulo ngokohlelo lweempawu zesakhiwo (1) ngevalve yolawulo yesitulo esinye: ivalve * * esetyenziswa kakhulu, inovuza okuthile ukuvuza okungqongqo, umahluko omncinci woxinzelelo olusebenzayo kwindawo ecocekileyo, kodwa inkcazo encinci yevalve yobungakanani begama (DN 2 umahluko woxinzelelo osebenzayo. Ingqalelo kufuneka ihlawulwe malunga nokuba isixa sokuvuza sevalve sihlangabezana neemfuno zolawulo lwenkqubo xa ukhetha isivalo.
(3) Ivalve yomkhono: isivalo somkhono sahlulwe saba sisitywina esinye kwaye sitywine kabini izakheko ezibini, esokuqala siyafana nevalve yesitulo esinye, esilungele izihlandlo zesitulo esinye. Le yokugqibela ifana nevalve enezihlalo ezibini, ifanelekile kwizihlandlo zevalve yezihlalo ezibini. Ivalve ye-sleeve nayo ineempawu zokuzinza okulungileyo, ukulayishwa okufanelekileyo kunye nokukhulula, kodwa ixabiso liyi-50% ~ 200% ephezulu kunevalve yesitulo esinye, ivalve yesitulo esiphindwe kabini, nayo idinga i-gasket ekhethekileyo yokuvala. Ivalve yomkhono yeyona ingaphantsi kwevalve yesitulo esinye, isitulo esiphindwe kabini sokufakwa kwevalvu yesitulo.
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5 Xa i-DN≤80 mm, ivalve ye-confluence ingasetyenziselwa iziganeko ze-shunt.
(6) Ivalve ye-diaphragm: indlela yokuhamba elula, i-diaphragm inomsebenzi othile wokuxhathisa umhlwa, ilungele indawo engcolileyo, i-corrosion medium ebuthathaka izihlandlo ezibini zokuqhawula.
Ivalve yebhabhathane (7) : kuyalingana ukufaka icandelo lomzimba, kwaye umzimba ulingana nesitulo kwakhona, ngoko ke umsebenzi "wokuzicoca" ulungile, obunye ubunzima  bomthamo. Ilungele ukungcola okuphakathi kunye nobubanzi obukhulu, ukuhamba okukhulu, umahluko omkhulu woxinzelelo. Xa i-Dn> 300 mm, idla ngokugqitywa ngevalve yebhabhathane.
8 “V” Ivalve yeBHOLA ineempawu zohlengahlengiso ezimalunga nepesenti ezilinganayo, ezilungele ukungacoceki, okuqulathe imidiya yefiber, amaxesha olawulo ahlengahlengiswayo. Iivalve zebhola zibiza kakhulu.
9 kodwa ixabiso levalve libiza kakhulu.
I-6 yokuqala yale mveliso ye-9 i-valve yokulawula i-stroke ngokuthe ngqo, kwaye i-3 yokugqibela i-angular stroke control valves. Njengokusetyenziswa kwevalve yokulawula, kuyimfuneko ukucacisa iimpawu zabo kunye nemibandela efuna ingqalelo. Zonke iintlobo zeemveliso ezahlukeneyo, iimveliso eziphuculweyo zavela kwezi 9 ndidi zeemveliso, kulula ukuqonda iindidi ezili-9 zeemveliso ukuqonda ukusetyenziswa kwezinye iimveliso.