Ingxoxo ngokusetshenziswa kwe-valve yesignali ye-valve yokulawula ipayipi lomlilo ezakhiweni eziphakeme kakhulu

Ingxoxo ngokusetshenziswa kwe-valve yesignali ye-valve yokulawula ipayipi lomlilo ezakhiweni eziphakeme kakhulu

Abstract: Iziphakamiso ze-valve yokulawula umlilo yesakhiwo esiphakeme kakhulu ISEBENZISA i-valve yesignali ixoxa ngamagama angukhiye: i-valve yesignali yokulawula umlilo yesakhiwo esiphakeme kakhulu ngokuvumelana nezinhlinzeko “zekhodi yomklamo wokuvikela umlilo wamabhilidi amade”, endlini. I-fire hydrant system, i-valve yesicelo sepayipi yokuphakela amanzi ihlukaniswe yaba inombolo , futhi i-valve kufanele ibe izimpawu ezisobala.
Lokhu kwenzelwa ukuthi isibalo samapayipi amanzi amile angabi ngaphansi kowodwa uma ipayipi liseviswa.
{TodayHot} ngokuthuthukiswa kwezakhiwo zesimanje, ukwakhiwa kwamapayipi ahlukahlukene ngesidingo esihle kufanele kufihlwe ngangokunokwenzeka ukuhlobisa, ngakho-ke, amapayipi amanzi ophahleni, i-tube well, asabalele, kodwa lokhu kuyinkinga, okungukuthi i-valve yokulawula yepayipi ye-hydrant yomlilo evulekile ayikwazi ukuthola ukuqapha, ukubangela i-hydrant yomlilo kungaba ukusetshenziswa okuvamile.
Izibonelo zimi kanje: Iphrojekthi ye-“State Grid Control Center of Ministry of Electric Power” ihlanganisa indawo yokwakha engaphezu kuka-50,000 square metres, 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 isebenzisa ama-valve ajwayelekile ngokuhambisana nemininingwane *, enezimpawu ezisobala ezivulekile nezivaliwe, kodwa ezingenakuboniswa esikhungweni sokulawula umlilo. Ngaphezu kwalokho, lawa ma-valve atholakala ku-tube kahle kanye nophahla lwezidingo zobuhle, futhi izinga labasebenzi bamanje alikwazi ukuqinisekisa ukwethembeka kwesistimu.
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 lokucisha umlilo luyisihluthulelo sokusetshenziswa okunengqondo kwezinkinga, futhi indlela enokwethenjelwa kakhudlwana yokugwema lesi simo kuvela ukuthi ama-valve okulawula amapayipi omlilo asethelwe 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.
Ukufakwa kwe-valve yokulawula nokuhlaziywa kokucatshangelwa kokwakhiwa
Ukufakwa kwe-valve yokulawula nokuhlaziywa kokucatshangelwa kokwakhiwa
Izinyathelo zokuphepha zokufakwa nokwakhiwa:
Izinyathelo zokuqapha ukufakwa kwe-valve yokulawula kufanele zicatshangelwe njengokusebenza okulula, ukuphepha nokumisa. Okuqukethwe okuqondile kungokulandelayo:
(1) Indawo yokufaka nokuma kwevalvu yokulawula:
1. Ngokusho kwemidwebo yokuklama kanye nemibhalo yokuklama, indawo yokufaka kufanele ibe nesikhala esanele sokusebenza sokufakwa, ukusebenza nokugcinwa; Indawo kufanele igweme ukufakwa ngokudlidliza, umswakama, ukulimala okulula ukuwenza, ukuphazamiseka okunamandla kazibuthe, izinga lokushisa eliphezulu, ukushintsha kwezinga lokushisa nezindawo zegesi egqwalayo; Ukufakwa kufanele kuqine futhi kube bushelelezi; Isikhundla sokufaka kufanele senze i-actuator ye-valve yokulawula engxenyeni engenhla yendlela yokulawula, ebonisa izikhundla ezihlukahlukene zokufaka ze-valve yokulawula ukushaywa okuqondile. Lapho, indawo ekhethiwe.
2. Indlela yokugeleza koketshezi kuvalvu yokulawula isiqondiso sokugeleza koketshezi kuvalvu yokulawula kufanele ihambisane nomcibisholo omakwe emzimbeni wevalvu wevalvu yokulawula. Izimo ezikhethekile akumele zikhawulelwe yilezi zinhlinzeko.
I-3, ukuxhumana kwe-valve yokulawula ukuxhumana kwe-valve kunokuxhumeka kwentambo, uxhumano lwe-flange nokuxhumeka kwe-welding. Ukuxhumana okunemicu kusetshenziselwa ama-valve okulawula ama-caliber amancane. Lapho ufaka ama-valve okulawula ukuxhuma okunentambo, izixhumi ezikhiphekayo kufanele zifakwe ngesikhathi esifanayo. Uxhumano lwe-Flange lunezinhlobo ezimbili zokuxhuma kwe-flange nokuxhumeka kwe-clamping, ububanzi obuncane be-flange yokuxhuma kufanele buhambisane nobubanzi be-valve yokulawula. Ama-Flanges nawo anamazinga ahlukene okucindezela, izinga lokucindezela le-flange kufanele lihambisane nezinga lokucindezela le-valve yokulawula. Ububanzi bangaphakathi be-flange buzolingana nobubanzi bangaphakathi bepayipi. Ukuchezuka okuvumelekile kwe-perpendicularity phakathi kwe-flange surface kanye ne-axis yepayipi ngu. Indawo yokuvalwa kwe-Flange kufanele ibe manzi. Lapho uxhuma i-flange, amandla kufanele afane futhi afanele ukugwema ukucindezela ngokweqile engxenyeni. Gwema ukuxhumana kwe-welding ngangokunokwenzeka. Lapho kuxhunywa i-welding, izixhumi ezigudlukayo ezithathekayo kufanele zifakwe. Uma i-valve yokulawula ixhunyiwe, ingxenye yangaphakathi yepayipi yokuxhuma akufanele iholele ekuqhumeni okusha. Isibonelo, ama-gaskets okuvala uphawu, ama-welding joints, njll akufanele aphume epayipini.
I-4, i-valve yokulawula nangaphezulu, i-valve yokusika eyehlayo, i-valve yokulawula ukuxhumana kwe-bypass, i-valve yokusika engezansi kanye ne-bypass valve kufanele ifakwe ngesikhathi esifanayo ne-valve yokulawula. Ubude besigaba sepayipi phakathi kwamavalvu anqamule angaphezulu naphansi omfula kanye namavalvu okulawula kufanele acabangele ukumelana namapayipi kanye nomthelela esimweni sokugeleza koketshezi. Ubude besigaba sepayipi eliqondile bude, obuhambisana nokuzinza koketshezi ngemva kwe-valve yokunqanyulwa, kungenza ukugeleza kwamanzi kuzinzile, kunciphise ithonya lokugeleza kwe-turbulent, ukunciphisa umsindo; Ubude besigaba samapayipi aqondile bufushane, futhi uketshezi lungena ku-valve yokulawula ngaphambi kokuba izinze ngemva kwe-valve enqamukile, ekhulisa umsindo, kodwa ubude obufushane besigaba samapayipi buyinzuzo ukunciphisa ukumelana kwamapayipi, ukuthuthukisa ukwehla kokucindezela. kuzo zombili iziphetho ze-valve yokulawula, ukunciphisa ukuhlanekezela kwezici zokugeleza, futhi kuhambisana nokusebenza okuzinzile kwesistimu yokulawula. Ngakho-ke, kufanele kucatshangelwe futhi kucatshangelwe kabanzi. Ngokuvamile, uhlangothi olungenhla nomfula kufanele lube nengxenye yepayipi eqondile engu-10D ukuya ku-20D, futhi uhlangothi olungezansi komfula kufanele lube nengxenye yepayipi eqondile ye-3D ukuya ku-7D. D iwububanzi obujwayelekile bepayipi, futhi idivayisi yokulungisa kufanele isethwe uma kunesidingo.
(2) ukukhethwa kohlelo lokuxhuma
1. Kunezindlela eziningi zokuxhuma i-valve yokulawula kanye ne-valve yokusika engaphezulu nephansi, kanye nezinhlelo eziningana zokuxhuma ezivamile. Emfanekisweni, isakhiwo se-scheme A sihlangene, sithatha i-footprint encane, kulula ukuyigcina nokusebenza, futhi uhlelo kulula ukulukhipha noma ukulukhipha. Kodwa ngokuvamile ayikwazi ukuhlangabezana nobude obanele bepayipi eliqondile, okuholela ekuthuthukisweni komsindo. Isakhiwo sohlelo B sihlanganisa indawo enkulu, futhi i-valve yokulawula ingafakwa engxenyeni engezansi noma engenhla, okulula ukuhlangabezana nezidingo zokusebenza, kodwa ubude besigaba sepayipi eqondile akulula ukuqinisekisa. Isakhiwo se-scheme C sifanele ama-valve okulawula ama-angular, anganciphisa inani lama-elbows futhi athathe indawo encane. Ukuze uthole isiqondiso sokugeleza kwendawo yokungena engezansi ne-outlet, kungase kube ubude bepayipi elide eliqondile elikhuphuka phezulu. Isakhiwo soHlelo D siyefana noHlelo B futhi luthatha indawo enkulu. Isakhiwo se-scheme E sifanele ama-valve angular. Uma kuqhathaniswa ne-scheme C, ubude besigaba sepayipi eliqondile ohlangothini olukhuphuka nomfula bufushane, obungahambisani nokuzinza koketshezi. Isakhiwo sohlelo F luyisakhiwo sokuhlanganisa esivamile. Inomlando omkhulu, ukumelana namapayipi amancane, kodwa isikhala esincane sokusebenza nokunakekelwa.
2. Ukuxhumeka kwe-valve yokukhipha, i-valve yokukhipha kanye ne-valve yokukhipha, ukuze kube lula ukuhlakazeka kwe-valve yokulawula, ingcindezi ngaphambi nangemva kwe-valve kufanele ikhishwe ngaphambi kokuhlakazeka, futhi i-valve yokukhipha kufanele ifakwe phakathi kwe-valve yokulawula. kanye nama-valve ayisikiwe aphezulu naphansi.
3. I-Vent valve kanye ne-drain valve isetshenziselwa ukukhipha igesi engajiki futhi i-condensate efakwe oketshezini. Uma uketshezi olulawulwayo kuyigesi noma isitimu ngesikhathi sokufakwa, i-valve ye-blowdown kufanele ifakwe engxenyeni engezansi yesethi yokulawula ukuze kube lula ukukhipha i-condensate. Lapho uketshezi olulawulwayo luyi-liquid, ukuze kube lula ukukhishwa kwegesi engancibiliki, i-valve yokukhipha kufanele ifakwe ekuphakameni kweqembu le-valve yokulawula.
4. I-bypass valve. Lapho i-valve yokulawula isuswa ukuze ilungiswe, i-valve ye-bypass ingasetshenziswa ukusebenzisa inqubo yokukhiqiza. Uma ukhokhiswa ithrafikhi eningi. Lapho i-valve yokulawula ingakwazi ukulungiswa ngokujwayelekile, njengesilinganiso esiphuthumayo, i-valve ye-bypass ingasetshenziswa futhi njengohlelo lokuxhuma oluhambisanayo lwe-valve yokulawula ukulawula inqubo. Ukuze kuncishiswe izindleko, amavalvu amakhulu okulawula afakwe ama-activator esandla angasebenza esikhundleni sama-bypass valves. Ukufakwa kwe-valve ye-bypass kufanele kube lula ukusebenza, yona kanye ne-valve yokulawula, i-valve yokusika phansi ndawonye ukuze kwakhiwe iqembu le-valve yokulawula, ngakho-ke, ukufakwa kufanele kufaniswe nabo, futhi kuqedele ukufakwa kokwakha ngesikhathi esifanayo. I-diameter yegama le-valve yokudlula iyafana nobubanzi obujwayelekile bepayipi, futhi isigaba sokucindezela sihambisana nesigaba sokucindezela kwenqubo.
5. Ukufakwa kwe-actuator kuvame ukuxhunywa ngokuqondile nomzimba we-valve we-valve yokulawula, kodwa lapho i-actuator ye-hydraulic, i-activator ye-stroke ende kanye nezinye i-actuator zihlukaniswa nomzimba we-valve we-valve yokulawula, ukunakwa kufanele kukhokhwe ukufakwa. ye-actuator. Induku yokuxhuma kanye nezingxenye ezihambayo zemishini ye-actuator kufanele ziguquguquke ngaphandle kokuxegiswa noma ukubopha. Ubude benduku yokuxhuma kufanele buzinze, buguquguquke futhi buthembeke ebangeni eliphelele le-stroke. Uma uxhunywe kumzimba we-valve wokulawula onokugudluzwa okushisayo kumapayipi enqubo, qinisekisa ukuthi indawo ehlobene phakathi kwe-actuator nomzimba we-valve yokulawula ihlala ingashintshile. I-actuator ye-handwheel inezinhlobo ezimbili zokukhweza eseceleni nokukhwezwa phezulu, futhi isikhala sokusebenza kufanele sishiywe uma uyifaka. Ukusebenza kwesondo lesandla kufanele kube okuguquguqukayo, kungabi khona into ebambekayo noma enyakazayo. Ubudlelwano phakathi kokuqondisa kwesondo lesandla kanye nokuvuleka kwevalvu kufanele kumakwe. Idivayisi yokukhawulela kufanele ilungiswe kahle ukuze idlale indima yokuvikela. I-actuator ye-hydraulic kufanele ifakwe ngaphansi kwesilawuli, uma kufanele ibe ngaphezu kwesilawuli, umehluko wokuphakama akufanele udlule i-1.0m, futhi i-valve yokukhipha umoya kufanele ifakwe endaweni yokuqoqa umoya wepayipi, kanye ne-valve yokuhlola noma ukusika okuzenzakalelayo. I-valve yokuvala kufanele ifakwe eduze kwesilawuli.
I-6, i-valve yokubeka indawo yokufakwa kwe-valve idivayisi yokuthola indawo ye-valve kanye nesiqu se-valve yokulawula noma i-valve shaft ixhunywe ngokuqondile, ngakho-ke, ukufakwa kufanele kuqinisekise ukuthi isignali yempendulo ingaba ilungile, ibonise ngesikhathi isignali yendawo ye-valve kanye nezinguquko. Ngokuvamile, indawo yokubeka i-valve ihlinzekwa nevalvu yokulawula, futhi umenzi uqedela ukuxhumana phakathi kwakho kokubili. Lapho isilawuli senqubo yokukhiqiza sidinga ukungeza isihleli se-valve, kufanele siqinisekise ukuthi isenzo sedivayisi yokubona indawo ye-valve silungile, sithembekile futhi siyavumelana nezimo. Ukususwa ngomshini kwe-fulcrum yenduku yempendulo kufanele kube kuncane ngangokunokwenzeka. UMUGQA WESIGNALI WESIMISELO IVAVVU UZOXHUNYWA KAHLE, FUTHI UMUMBO WOKUSEBENZA KOMOYA KANYE NOMUGQA WOKUPHUMA NOMUGQA WOKUFAKAYO kuzomakwa ngamapuleti anamagama. Isignali yokubonisa indawo ye-valve ye-valve positioner kufanele ilungele ukusebenza nokugcinwa kwabasebenzi ukuze bayibone.
7. Ukufakwa kwezinye izesekeli, okuhlanganisa inzwa yendawo yevalvu, i-solenoid switch, i-limit switch, i-actuator, isiguquli sikagesi, njll., kufanele kufakwe ngokuhambisana nezinhlinzeko ezifanele zemanuwali yomkhiqizo. Ivalvu encane yokulawula ukugeleza kufanele ifakwe kusihlungi esikhuphuka nomfula. Uma isiphithiphithi sinzima, idivayisi yokulungisa kufanele ifakwe ohlangothini olungenhla nomfula.
8. Ukufakwa kwamapayipi axhumayo Ukufakwa kwamapayipi axhumayo kufanele kunake lezi zinto ezilandelayo.
1) Ipayipi lesiginali kanye nepayipi lomthombo womoya ngokuvamile lisebenzisa ikhebula lepayipi lethusi elineshehethi ye-PVC, ububanzi bepayipi yi-sL6Xl noma i-g18Xl
2) Ipayipi lomthombo womoya kufanele libe seduze nevalvu yokulawula.
3) Ipayipi lesignali kanye nepayipi le-hydraulic kufanele kube kufushane ngangokunokwenzeka ukuze kufinyezwe ukubambezeleka kwesignali kanye nesikhathi sohlelo esingaguquki.
4) Ipayipi kufanele libe nokunwetshwa okwanele kanye nokuphinda kusebenze, futhi akufanele kuvimbe ukusebenza kwe-actuator.
5) I-slag yokushisela akufanele ifakwe epayipini ngesikhathi sokushiselwa kwamapayipi. Izintambo zokuxhuma kufanele zihlanzwe ngaphambi kokufakwa ukuze kukhishwe ukungcola okufana namafutha, amanzi nokugqwala. Amapayipi okuxhuma amapayipi kufanele abe mahle futhi abe mahle.