I-Din Rising Stem Ductile Iron Resilient Seated Gate Valve f4

Sihamba phambili kubhokisi lakho lokungenayo futhi sikunikeza izindaba ezibaluleke kakhulu embonini-okukwenza uhlakaniphe futhi uthuthuke kakhulu kule makethe yokuncintisana ehlala ishintsha. Sihamba phambili kubhokisi lakho lokungenayo futhi sikunikeza izindaba ezibaluleke kakhulu embonini-okukwenza uhlakaniphe futhi uthuthuke kakhulu kule makethe yokuncintisana ehlala ishintsha. Amavalvu alungile, amapayipi kanye nezixhumi kubalulekile ekusebenzeni ngempumelelo kwempahla yokuphehla ugesi. Izinto zokusebenza zibandakanya imikhiqizo enemiklamo ehlukahlukene engasungula izindlela ezisebenzayo zokuxhuma nezindlela zokuvala, futhi ibe nobuqotho bokuxhumana obungcono, ngaleyo ndlela iqinisekise ukusebenza okuphephile ezimbonini zamandla ashisayo, enuzi kanye namandla avuselelekayo. Umkhiqizi ubonisa ukuthi lapho ekhangisa imikhiqizo yayo, izindleko zokufaka ziphansi, ukuphepha nokusebenza kahle kuyathuthukiswa, futhi isikhathi sokuphumula esihleliwe nesingahleliwe siyancishiswa. Naba abakhiqizi abahamba phambili nezinkampani zesevisi zamavalvu ezitshalo zamandla, amapayipi nokufakwa. I-Boldrocchi iqede ukuhlolwa okuyimpumelelo kwevalvu yayo entsha eyi-7m by 7m diverter yezinjini zegesi ekuqaleni kwalo nyaka. I-diverter valve iyi-valve enezinhlangothi ezintathu engakhiphela igesi ekhipha i-turbine yegesi emkhathini ngoshimula odlulayo, noma ingene kujeneretha lwesitimu sokubuyisa ukushisa. I-damper inomthamo ophakeme kakhulu futhi idlula indinganiso mayelana nokuvalwa kwejometri, ingcindezi yokuvala kanye nesikhathi sokuvala, kuyilapho inciphisa ukulungiswa nokwenza lula ukuthutha nokuhlanganisa. Le diverter entsha iphinde ivumele ukuguqulwa okusheshayo kusuka ohlelweni olulodwa lomjikelezo kuya ohlelweni lomjikelezo ohlangene. Iklanyelwe ukumelana namazinga okushisa afika ku-700C (1,300F), ukudlidliza kanye nesiphithiphithi segesi, futhi ithuthukise ukuguga kwezingxenye. I-diverter ifakwe uhlelo lokuvala umoya, olungenza izinga lokuvala legesi yokukhipha lilingane no-100% (ukuvalwa okuphelele). Umfutho we-air seal mkhulu kuno-+500 mm wekholomu yamanzi (mm wc), futhi umkhiqizi wezisetshenziswa zangempela ngokuvamile udinga u-+50 mm wc. I-shunt ifakwe i-hydraulic actuator. Ngokwezidingo zamakhasimende, isikhathi sayo esivamile sokusebenza singaphansi kwamasekhondi angu-60, futhi isikhathi sokuvala ucingo oluphuthumayo singaphansi kwamasekhondi angu-20. Nokho, i-shunt yakhelwe futhi yakhiwe ukuze ifinyeze isikhathi sokushayela. I-Boldrocchi idizayine isihlukanisi ukuze senze kube lula ukusihambisa nokuhlanganisa. I-splitter ingahlanganiswa kusengaphambili ibe yizicucu eziningana, noma ingahlanganiswa ngokugcwele futhi ihanjiswe (ingxenye eyodwa). I-Boldrocchi iklame isihlukanisi ukuthi sifakwe kalula ngaphansi kukashimula womjikelezo owodwa esikhundleni sendololwane ekhona. I-Boldrocchi, Biassono, Italy I-Spirax Sarco Engineering Co., Ltd. inikeza imikhiqizo namasevisi ezixazululo zamandla ashisayo. Ivalvu yayo yokulawula i-Spira-trol isetshenziswe efekthri, okuvumela ukufakwa ngokushesha kokuthi "plug and play". Idizayini ye-modular ye-Spira-trol inesihlalo sevalvu esishintsha ngokushesha "i-clamp-in-place", okusho ukuthi umsebenzi wayo ungashintshwa ukuze uvumelane nezimo zezitshalo ezishintshayo ngaphandle kokushintsha i-valve yonke. Isihlalo sevalvu yokuqinisa i-self-aligning in-situ senza nokugcinwa kube lula, ngakho-ke awekho amathuluzi akhethekile adingekayo, futhi asikho isidingo sokukhipha i-valve epayipini. Lokhu kungonga izindleko eziningi uma kuqhathaniswa nemiklamo yendabuko evame ukuba nesihlalo se-valve esigxilile. Isihlalo se-valve yesikulufa sivamise ukunamathela endaweni, edinga ukuthi i-valve ihlakazwe, okuholela ekuphelelweni kwesikhathi eside kwesitshalo. Nikeza i-1/2 intshi kuya ku-4 intshi kagesi kanye ne-pneumatic Spira-trol valve, efika kunguqulo ye-ANSI 150 flange. Ngochungechunge oluphelele lomkhiqizo we-Spira-trol (olunwebeka lube amayintshi angu-8) kanye nobubanzi bengcindezi ye-ANSI 600, i-Spirax Sarco inganikeza izixazululo zokulawula kusukela ekushiseni, ekungeneni komoya nasekupholiseni umoya ukuze kucutshungulwe namandla okufaka izicelo zesevisi ezifunayo. I-Spirax Sarco, e-Cheltenham, Inkampani yase-UK Clark Valve imemezele ukuthi idizayini yayo ye-valve yesango yokuphathelene isithole isitifiketi se-API 641, okuyivalvu yokuqala yokulawula ukuthola lesi sitifiketi sokusebenza esiphansi. Izinga le-API 641 lisebenza kuzo zonke izinto zokuvala isiqu se-valve, futhi ukuvuza okuqinile okuphezulu okuvumelekile izingxenye eziyi-100 ngesigidi ngevolumu (ppmv). Leli zinga lokuhlola le-API lidinga ukuthi i-valve ithathe imijikelezo engu-610 ngaphansi kokuguquguquka okukhulu kwezinga lokushisa ukuze ihlole ukusebenza kokukhishwayo phakathi nomjikelezo wempilo osheshisiwe. Ukukhishwa okuphumayo okuvela emiklamo yamavalvu endabuko ezikhungweni zezimboni kuyimbangela eyinhloko yokungcoliswa komoya, futhi umklamo oyingqayizivele wamavalvu wamasango uhlinzeka ngokuvaleka okuhle kakhulu esiqwini se-valve, ngaleyo ndlela kunciphisa lokhu kukhishwa. I-valve yokuvala enelungelo lobunikazi yahlolwa ngokuzimela yi-Yarmouth Research and Technology. Ivalvu yafakazela ukuthi ivalvu iphumelele ukuhlolwa kokuvuza okungaphansi kuka-20 ppmv, ngaphansi kakhulu komkhawulo ongu-100 ppmv. Idizayini eyingqayizivele yesivalo se-shutter isivele iyi-valve yokulawula ukusebenza engcono kunazo zonke emhlabeni, futhi manje isiyivalvu yokulawula evumelana kakhulu nemvelo. I-Clarke Valve, eMiami, eFlorida Westinghouse yethule izigxivizo zayo ze-Sigma Reactor Coolant Pump (RCP), eziklanyelwe ukuhlanganisa ngaphandle komthungo njengezingxenye zokufaka uphawu lwesizukulwane sokuqala se-Westinghouse RCP kanye nezinsiza zezimboni. Ihlose ukuhlinzeka ngensizakalo ethembekile kuze kube yiminyaka eyi-12, engonga izindleko, inciphise imithamo futhi ithuthukise iphrofayili yobungozi bezikhungo zokuphehla amandla enuzi. Izigxivizo ze-Sigma zenzelwe ukufeza ukusebenza okubikezelwe futhi zinciphise ukuzwela kwemvelo, futhi zisekelwa amahora angaphezu kuka-20,000 okuthuthukiswa nokuhlolwa kweziqu. Izigxivizo ze-Sigma zihambisana ngokugcwele ne-Westinghouse SHIELD yokuvala i-thermal shutdown seals. Indlela yenkampani ihlinzeka ngesixazululo esiphelele, esingabizi kakhulu sokuvala esinokwethenjelwa okuvelele nokuphila isikhathi eside, kanye nezici zokuphepha ezihlanganisiwe ezingenzi lutho. Umklamo omusha we-Sigma seal usekelwe eminyakeni engaphezu kwengu-40 yolwazi lwentuthuko kanye nedatha yokusebenza yezimpawu ze-Westinghouse RCP. Izigxivizo ze-Westinghouse RCP zisebenze ngempumelelo amahora angaphezu kwezigidi ezingu-150 kuma-RCP angaphezu kuka-600 kumarektha amanzi anomfutho emhlabeni wonke. I-Westinghouse Electric Company, e-Monroeville, ePennsylvania Ivalve ye-boiler blowdown ye-Valve ye-Everlasting isebenzisa ubuchwepheshe benkampani obunelungelo lobunikazi be-rotary valve, obusebenza kahle kakhulu ngokungaguquki futhi obuhlala isikhathi eside. Lawa ma-valve avuliwe angakhipha kahle udaka olwakhiwe kubhayela wesitimu. Zinokulungiswa kwe-engeli yesokudla kanye ne-engeli yokuvula ngokushesha nokuvula kancane, futhi zilungele izinhlelo zokusebenza ezihlanganisa ukushaywa kwebhoyili yesitimu, ukuqhunyiswa kwendawo, ukugeleza kwekholomu yamanzi, namavalvu okumisa namavalvu okumisa. I-valve ye-blowdown valve ye-Everlasting isekelwe kubhayela ye-ASME nekhodi yesigaba 1 somkhumbi wokucindezela kanye nekhodi yamapayipi kagesi ye-ANSI B16.31. Lawa ma-valve enzelwe ukunciphisa kakhulu izindleko zokunakekela kanye nesikhathi sokuphumula. Isihlalo se-valve kanye ne-disc kungenziwa ngensimbi engagqwali, futhi i-valve yenziwe ngensimbi ephonswe noma i-carbon steel ene-threaded noma i-flanged. I-Valve of Eternity, South Plainfield, New Jersey Copes-Vulcan's DSCV-SA (Direct Steam Transfer Valve-Steam Atomization) yomkhiqizo we-SPX FLOW ihlangabezana nezimfuneko zokusebenza okuhle kakhulu futhi inomsebenzi wokuvala oqine kakhulu. Iqeda ukushaqeka okushisayo, futhi inokuguquguquka okuphezulu, usayizi nokuguquguquka kokufaka, nezindleko zokulungisa eziphansi. I-DSCV-SA Copes-Vulcan pressure yokunciphisa kanye ne-valve yokunciphisa izinga lokushisa inesakhiwo esiyi-angular. Isitimu singena ngembobo yokuxhumana yegatsha, futhi isitimu siphuma ngembobo yokuxhuma ekulayini. Ngokuvumelana nentando yekhasimende, ukuxhumana kungenziwa nge-flanged noma kushiselwe izinqe. Lawa mayunithi akhiqizwa izingxenye ezimbili ukuze anikeze ukuguquguquka okukhulu kwamakhasimende. Uhlangothi olunomfutho ophezulu weyunithi luyisakhiwo esikhonjiwe noma esakhiwe, futhi ingxenye yokukhipha ingcindezi ephansi iyisakhiwo esenziwe ngaphambili. Ivalvu ifakwe isivalo sebhawodi sokulinganisa ingcindezi efika ku-ANSI 900#, okuhlanganisa i-ANSI 1500#, kanye nevalvu yokucindezela ivala kuze kufike ku-ANSI 4500# nokufika ku-ANSI 4500#. Ngokuya ngokwehla kwengcindezi nokuhlangabezana nezidingo zezinga elithile lomsindo, i-valve ingahlonywa nge-HUSH yesiteji esisodwa, i-HUSH enezigaba eziningi noma ubuchwepheshe bokunquma i-Copes-Vulcan RAVEN. I-valve yamukela umqondo wochungechunge lokulawula umshayeli olinganiselayo, onebhalansi yokucindezela okuphezulu, ukwakheka kwe-valve yesihlalo esisodwa, engaqinisekisa ukunqanyulwa kwezinga le-V okuqinile nokuphindaphindekayo ngokuhambisana ne-ANSI / FCI 70-2. I-Copes-Vulcan / SPX FLOW, McKean, Pennsylvania I-Huntington Fusion Technology i-HFT manje isikhiqiza amapayipi okuphakelayo e-argon enziwe ngendlela efanele anokufakwa okungavuzi, okuwukuthuthukiswa kwezobuchwepheshe bokuhlanza i-weld. Ipayipi yemvelo yenjoloba yokuphakelayo ifakwe isilawuli segesi se-argon, umkhawulo owodwa oxhunywe ngokuqondile kunoma yiluphi uhlobo lwepayipi le-inflation kanye ne-pipe weld purge system, kanti omunye umkhawulo uxhunywe emthonjeni wegesi. Lawa ma-hose assemblies angasetshenziswa futhi ekuthuthweni kwamanye amagesi adinga ukudluliswa okuvaliwe. Amanye ama-adaptha angavuzi ahlinzekelwe ukuxhuma isilawuli se-argon, kanti esinye isiphetho soxhumano oluhlanganiswe ngaphambilini luxhunywe kuwo wonke amasistimu we-HFT Argweld welding kanye nokuhlanza. Zonke lezi zinsiza zekhwalithi ephezulu zisiza ukuqeda ubunzima bokuxhuma i-welding labo abashiselayo abangase bahlangane nabo ensimini. Ipayipi lokuphakelayo le-argon linganikezwa nayo yonke imishini yokushisela ye-inert gas/argon tungsten arc (TIG/GTAW) njengoba kudingeka. I-hose ingasetshenziswa ebangeni lobude obujwayelekile, ububanzi bungamamitha angama-30 (m), 25 m, 20 m, 15 m, 10 m no-5 m. Ipayipi lokuphakelayo kwe-argon lihlangabezana nezinga lekhwalithi ye-British Standard BS EWN 599. Izinga lokushisa lepayipi ngalinye lokuphakelayo lisuka ku--30C kuya ku-80C, futhi isici sokuphepha siwukucindezela kathathu kokusebenza kwamabha angu-20 (300 psi). I-Huntingdon Fusion Technology HFT e-Burry Port, isistimu elungele ukufakwa ye-QuickVic SD ye-Victaulic yase-UK iwubuchwepheshe bokuxhuma ipayipi eliyisiphetho esiyisicaba elenzelwe amasistimu ensimbi ye-carbon enosayizi ongu-2 amayintshi/DN50 nangaphansi. Kuyisixazululo esinomnotho kakhulu nesisebenzayo sokuxhuma amapayipi kumasistimu amancane obubanzi. Uma kuqhathaniswa nezinto zamanje zamapayipi nezindlela zokufaka, zingasindisa kakhulu inani lezindleko zokufaka. Uhlelo luhlanganisa izixhumi esezilungele ukufakwa, okokufakwayo namavalvu, kanye namathuluzi okusika nokumaka we-PC3110. Usayizi womkhiqizo ungu-1/2 intshi kuya ku-2 intshi / DN15 kuya ku-DN50, futhi ungasetshenziselwa ipayipi le-carbon steel 10 kuya ku-80, ingcindezi yokusebenza ephezulu kanye nezinga lokushisa elilinganiselwe lingu-300 psi / 2068 kPa / 21 bar kanye no-250F / 120C ( usebenzisa i-EPDM [i-ethylene propylene Diene monomer] i-gasket yerabha). I-Victaulic, Easton, Pennsylvania Iskena sendololwane sepayipi le-ELSCAN singaskena ngokuzenzakalelayo izindololwane zamapayipi aqondile ezinobubanzi obungaphandle obungamayintshi angu-4 ukuya kwangu-42. Lesi sithwebuli se-double-axis esingasindi sisebenzisa izinto eziningi noma ama-array ultrasonic transducers ukuze siqoqe izilinganiso zokujiya kokulungiswa okuphezulu, kusize izitshalo zamandla ukuthi zigweme ukugqwala okusheshisa ukugeleza. Uzibuthe oguquguqukayo ungathintana ngempumelelo nepayipi kanye nendololwane ehlolwayo ukuze kulinganiswe ngempumelelo. Ngosizo lwamashafti amabili wesishumeki, isithwebuli singahlola noma iyiphi ingxenye noma yonke indololwane. U-WesDyne, inkampani ephethwe ngokugcwele ye-Westinghouse Electric Company, ungumphakeli womhlaba wonke wemikhiqizo namasevisi okuhlola okungabhubhi (NDE), futhi ungumholi owaziwayo embonini yamandla ekudaleni nasekusebenziseni izixazululo zobuchwepheshe obusha, obuthuthukile be-NDE ukuxazulula ukuhlolwa kwe-ultrasonic. izinselele . Isikena singathengwa ngokwehlukana ukuze sizihlole, noma ithimba lokuhlola i-WesDyne NDE lingahlinzeka ngokuhlolwa kwepayipi okugcwele, okungabizi kakhulu kanye nokufika ngesikhathi. I-WesDyne International yaseMadison, ePennsylvania Baker actuators yizixazululo ezinokwethenjelwa zokulawula amavalvu ezimboni. Bangakwazi ukunikeza ngokunembile ukuma okungu-0.1 futhi baxazulule izinkinga ezingokwemvelo zobunye ubuchwepheshe be-actuator, okuhlanganisa ama-activator kagesi endabuko, ama-actuator womoya nama-hydraulic actuators. Ama-activator e-Baker awadingi cishe ukunakekelwa, futhi isikhundla sawo sihlala singaguquki ngokuhamba kwesikhathi kungakhathaliseki ukuthi umthwalo ungakanani. Badinga kuphela amandla amancane ukuze basebenze, futhi ayikho imingcele yomsebenzi, ngoba ama-activator ka-Beck ngeke ashise noma ashise. Wonke ama-actuator akwa-Beck angasebenza ngokuqhubekayo ngaphandle kokuvinjelwa ukushintshashintsha noma isikhathi sokusebenza, futhi angasebenza 24/7 kungakhathaliseki izimo zokunakekela. I-Group 57 entsha ye-rotary valve actuator ikhulise ukusebenza futhi yakhelwe ukuhlangabezana nezidingo zezindawo eziningi ezikude neziyingozi. Izici ezintsha nezinzuzo zihlanganisa amandla okusebenza emithonjeni yamandla engu-12–48 VDC DC, okuyenza ilungele ukusetshenziswa namaphaneli elanga. Banezilinganiso zendawo eziyingozi ze-Class I, Class 1, Group B, C kanye no-D. Banokuvikelwa kwamaphutha kagesi okwakhelwe ngaphakathi kanye nenketho yangaphakathi ye-super capacitor eyisipele yamandla kagesi. U-Beck-Harold Beck and Sons, Newtown, Pennsylvania Cornwall uhlinzeka ngokusebenza okuphezulu kwe-Swivldisc, amavalvu esango lesevisi aqinile anosayizi osuka ku-1/2 intshi ukuya kumayintshi angu-4 kanye nesilinganiso sokucindezela se-ASME/ANSI esingu-4500#. Izinto ezijwayelekile zokwakha yi-carbon steel 216 GR WCB, Chromalloy SA-217 GR WC9, SA-217 GR C12A kanye ne-SA-351 CF3M. Ezinye izinto zinganikezwa ngesicelo. Izinketho zifaka i-bypass, air noma ama-motor actuators. I-valve yesango le-Swivldisc inomklamo omuhle kakhulu wesango le-wedge esebenzisa i-disc eguquguqukayo. I-disc ivumela ukuqondanisa okuphelele kwendawo yesihlalo se-valve futhi isungula uphawu oluqinile olungenakufinyelelwa ngamasango ama-wedge ajwayelekile. I-Cornwall, Enfield, Connecticut Ukulawula ukukhishwa kwekhabhoni kungaba inselele uma usebenzisa ubuchwepheshe benjini ephindwe kabili ephindaphinda amandla emithwalweni ephansi. Ama-valve amanzi okuphakelayo asebenza ngaphansi kwezimo ezinzima zesevisi futhi azohluleka ngaphambi kwesikhathi ngenxa yokuvuza kwesihlalo se-valve, i-cavitation nezinye izizathu. Ukuthunyelwa kobuchwepheshe bamandla e-micro-turbine kukhula kancane, kodwa abahlaziyi babikezela ukuthi njengoba...