Ingxoxo ngokusetshenziswa kwamavalvu esignali amavalvu okulawula amapayipi omlilo ezakhiweni eziphakeme

Ingxoxo ngokusetshenziswa kwamavalvu esignali amavalvu okulawula amapayipi omlilo ezakhiweni eziphakeme

Abstract: Isiphakamiso se-valve yokulawula umlilo wesakhiwo esinesiteji esiphezulu sisebenzisa ingxoxo yevalvu yesignali
Amagama angukhiye: i-valve yesignali ye-valve yokulawula umlilo yesakhiwo esiphezulu
Ngokwezinhlinzeko ze- "Code for Fire Prevention Design of high-rite Civil Buildings", ohlelweni lwe-hydrant yangaphakathi yomlilo, ipayipi lokuhambisa amanzi kufanele lihlukaniswe ngezigaba eziningana **, futhi i-valve kufanele ibe nezimpawu ezicacile ezivulekile nezivaliwe. Lokhu kwenzelwa ukuthi isibalo samapayipi amanzi amile angabi ngaphansi kowodwa uma ipayipi liseviswa.
Ngokuthuthukiswa kwezakhiwo zesimanje, ukwakhiwa kwamapayipi ahlukahlukene ngesidingo esihle kufanele kufihlwe ngangokunokwenzeka ukuhlobisa, ngakho-ke, amapayipi we-hydrant ophahleni, i-tube kahle, asakazeke, kodwa lokhu kuyinkinga, okungukuthi i-valve yokulawula ipayipi le-hydrant elivulekile alikwazi ukuthola ukuqapha, ukubangela i-hydrant yomlilo kungaba ukusetshenziswa okuvamile. Nazi izibonelo:
Iphrojekthi ye-"State Grid Control Center of Ministry of Electric Power" ihlanganisa indawo yokwakha engaphezu kwamamitha-skwele angu-50,000, enezitezi ezintathu ezingaphansi komhlaba nezingu-27 ngaphezu komhlaba. Ukuphakama kwesakhiwo kungaphezu kwamamitha ayi-110. Kuyisakhiwo esihlakaniphe kakhulu esihlanganisa umyalo wokukhiqiza nokuthunyelwa, imisebenzi yehhovisi neyenkomfa, futhi izinga layo eliphezulu lokuzishintshashintsha alivamile e-China. Ekwakhiweni kwesistimu yokufafaza iwayini okuzenzakalelayo, ngasebenzisa ama-valve esignali phambi kwazo zonke izinkomba zokugeleza kwamanzi, ukuze isimo sesistimu siboniswe esikhungweni sokulawula umlilo, futhi izinkinga zingatholakala ekuboneni okucacile. Ukwengeza, ukulawulwa kwezinga lamanzi lokuphila kanye nokulwa nomlilo, kanye nokuqala nokumiswa kwepompo yomlilo nakho kubhekwa ngokufanelekile. I-valve yokulawula kuphela yesistimu ye-fire hydrant ngokuhambisana nokucaciswa kwe-valve evamile, inezimpawu ezicacile zokuvula nokuvala, kodwa ayikwazi ukuboniswa esikhungweni sokulawula umlilo, ngaphezu kwalokho, lawa ma-valve atholakala emgodini we-tube kahle. kanye nophahla lwezidingo zobuhle, izinga labasebenzi bamanje alikwazi ukuqinisekisa ukwethembeka kohlelo. Ohlelweni lokuvikela umlilo ngenqubo yokwamukelwa, nakuba ubuholi bendlunkulu yephrojekthi yenkonzo, amayunithi okwakhiwa kanye namayunithi okuklama abaluleke kakhulu, yenze ukuthunyelwa kanye nokulungiswa kwasekuqaleni, kuhlaziywe kahle, kodwa ngenqubo yomnyango wezomlilo osemthethweni osemthethweni. ukwamukela, kodwa kunenkinga, kukhona isixhasi sokucima umlilo kuphayiphi noma kunjalo futhi asikwazi ukuphuma emanzini, kanti ezinye ezine zivamile, Asikwazi ukuthola inkinga esikhungweni sokulawula umlilo. Ngemva kokuhlolwa, kwatholakala ukuthi ama-valve okulawula kuzo zombili iziphetho zesikhuphukeli ayevaliwe ngenxa yokunakekelwa, futhi abasebenzi abazange bawavule ama-valve ngemva kokulungiswa, okubangele ukuthi isiphaza-mlilo singamanzi.
Ngicabanga ukuthi, esimweni lapho wonke umuntu enamathisela ukubaluleka okukhulu, namanje avele lolu hlobo lwenkinga, futhi ngokuvamile esimweni sokukhubazeka kalula kakhudlwana abazi ukuthi hlobo luni lwenkinga oluzovela. Lokhu kuhlobene nokuthi uhlelo lwepayipi lomlilo luwukhiye wokusetshenziswa okunengqondo kwezinkinga, futhi gwema lesi simo sivele * * indlela enokwethenjelwa iwukushisa ama-valve okulawula amasistimu afakwa ku-valve yesignali, kanye ne-valve evulekile ukuze iboniswe phakathi nendawo. yokulawulwa komlilo, ukuze ukuhlolwa kwabasebenzi bokuphatha, nakuba izindleko ziye zanda, noma kunjalo, Isilinganiso sokutshala izimali kulo lonke uhlelo lwe-hydrant yomlilo sisencane kakhulu, futhi singenza ukuphepha kwesistimu yonke yomlilo ** ukuthuthukiswa, okuyinto Ngicabanga ukuthi kuwufanele utshalomali.
Ivalvu yokulawula ngokwezigaba zezici zesakhiwo (1) ngevalvu yokulawula yesihlalo esisodwa: ivalvu * * esetshenziswa kabanzi, inokuvuza okuthile ukuvuza okuqinile, umehluko omncane wokucindezela kokusebenza kwendawo ehlanzekile, kodwa ukucaciswa okuncane kosayizi we-valve (DN (2) iqonde ku-valve yokulawula enezihlalo ezimbili: ngokungafani ne-valve yokulawula yesihlalo esisodwa eqondile, inezici zokuvuza okukhulu kanye nomehluko omkhulu ovumelekile wengcindezi, ngakho ifanelekela izikhathi zemidiya ezihlanzekile ezinezidingo zokuvuza okuxekethile kanye nokukhulu. umehluko wengcindezi yokusebenza. Kufanele kuqashelwe ukuthi inani lokuvuza kwe-valve liyahlangabezana yini nezidingo zokulawula inqubo lapho kukhethwa i-valve.
(3) I-valve yomkhono: i-valve yomkhono ihlukaniswe yaba uphawu olulodwa futhi ivalwe kabili izakhiwo ezimbili, eyokuqala ifana ne-valve yesihlalo esisodwa, ifanele izikhathi zevalvu yesihlalo esisodwa. Lesi sakamuva sifana nevalvu enezihlalo ezimbili, ifanele izikhathi zevalvu enezihlalo ezimbili. I-valve ye-sleeve nayo inezici zokuzinza okuhle, ukulayisha okulula nokuthulula, kodwa intengo iphakeme ngo-50% ~ 200% ngaphezu kwe-valve yesihlalo esisodwa, i-valve yesihlalo esiphindwe kabili, nayo idinga i-gasket ekhethekile yokuvala. I-valve ye-sleeve ingaphansi kakhulu kune-valve yesihlalo esisodwa, ukusetshenziswa kwe-valve yesihlalo esiphindwe kabili.
(4) I-Engela valvu, i-throttle form ilingana ne-valve yesihlalo esisodwa, kodwa ukuhamba komzimba kulula, kusebenza ekuvuzeni kudinga  izikhathi ezihlanzekile eziphakathi nendawo kanye nezimfuneko zokucindezela okuhlukile yipayipi elingunxande.
(5) i-valve yezindlela ezintathu: ineziteshi ezi-3, ingakwazi esikhundleni se-valve yesihlalo esisodwa esiqondile, esetshenziselwa i-shunt ne-confluence kanye nokugeleza kwezigaba ezimbili, umehluko wokushisa awukho ngaphezu kuka-150 ℃. Uma i-DN≤80 mm, i-valve yokuhlangana ingasetshenziselwa izikhathi ze-shunt.
(6) I-valve ye-diaphragm: indlela yokugeleza elula, i-diaphragm inokusebenza okuthile kokumelana nokugqwala, ifanele indawo engahlanzekile, i-corrosion medium ebuthakathaka izikhathi ezimbili zokunqamuka.
I-Butterfly valve (7) : kuyalingana ukufaka ingxenye yomzimba, futhi umzimba ulingana nesihlalo futhi, ngakho ukusebenza "kokuzihlanza" kuhle, okunye  isisindo sevolumu. Ifanele ububanzi obuphakathi nobukhulu obungahlanzekile, ukugeleza okukhulu, umehluko omkhulu wengcindezi. Uma i-Dn > 300 mm, ivame ukugcwaliswa nge-valve uvemvane.
8 Ivalve yeBHOLA ethi “V” inezici zokulungisa cishe amaphesenti alinganayo, afanelekela imidiya engahlanzekile, equkethe i-fiber, izikhathi zokulawula ezinkulu ezilungisekayo. Ama-valve ebhola ayabiza kakhulu.
9 kodwa intengo ye-valve ibiza kakhulu.
Eyokuqala engu-6 yale mikhiqizo engu-9 amavalvu okulawula ukushaywa kwe-stroke aqondile, kanti angu-3 okugcina angama-angular stroke control valve. Njengokusetshenziswa kwe-valve yokulawula, kuyadingeka ukucacisa izici zabo nezindaba ezidinga ukunakwa. Zonke izinhlobo zemikhiqizo ehlukile, imikhiqizo ethuthukisiwe ivele kulezi zigaba eziyi-9 zemikhiqizo, kulula ukuqonda izigaba eziyi-9 zemikhiqizo ukuze ukwazi ukusebenzisa eminye imikhiqizo.