Buka Isithombe Esikhulu
Isidingo samandla siyakhula phakathi nokushintsha kwesimo sezulu kanye nesidingo sokuthola izinsiza ezingcono, ezivuselelekayo nezingalimaza kakhulu ukukhiqiza ugesi.Lokhu kuholela kubakhiqizi bamavalvu ezimbonini embonini yokuphehla amandla ukuthi bafune imishini yenqubo engakhuphula ukusebenza kahle kokuphehla ugesi futhi kwandise ukusebenza kwamandla.
Ngokubheka isithombe esikhulu, ama-valve abonakala eyingxenye nje yobukhulu besiteshi sikagesi.Nakuba lezi zincane, indima yazo ibalulekile esikhungweni sikagesi.Eqinisweni, kunama-valve amaningi endaweni eyodwa yamandla.Ngayinye yalezi ithatha izindima ezahlukene.
Nakuba isimiso sokuklama ngemuva kwama-valve amaningi singakashintshi, izinto ze-valve nezindlela zokukhiqiza ziye zaba ngcono kakhulu.Unalokhu engqondweni, ama-valve manje angasebenza ngobunyoninco nangempumelelo.Lesi sihloko sinikeza ukuqonda ngama-valve asetshenziswa ezitshalweni zikagesi, ukubaluleka kwawo kanye nezigaba.
Amavalvu Asetshenziswa Ngokujwayelekile Kuzinhlelo Zokutshalwa Kwamandla
Ibhonethi Eboshiwe kanye namavalvu eSango Seal Pressure
Ama-valve esango ane-disc noma i-wedge esebenza njengesango elivimba indlela yokugeleza kwemidiya.Akuhloselwe ukunyakazisa, indima eyinhloko yamavalvu esango iwukuhlukanisa imidiya enomkhawulo omncane.Ukuze usebenzise ngokugcwele i-valve yesango, yisebenzise kuphela njengevulwe ngokugcwele noma ivalwe ngokugcwele.
Amavalvu esango, kanye namavalvu embulunga, ayingxenye yesigaba samavalvu wokuzihlukanisa.Lawa ma-valve angamisa ukuhamba kwemidiya ezimeni eziphuthumayo noma lapho ipayipi lidinga ukulungiswa.Lezi zingaphinde zixhume imidiya kumishini yenqubo yangaphandle noma zingaqondisa ukuthi iyiphi indlela yemidiya okufanele ilandele.
Ivalvu yebhonethi eboshiwe inciphisa ukuguguleka, ukungqubuzana nokwehla komfutho.Lokhu kungenxa yomklamo wayo wembobo oqondile.Kuma-valve wesango lophawu lokucindezela, imiklamo emibili iyatholakala ekusetshenzisweni kwengcindezi ephezulu kanye nezinga lokushisa: i-disc parallel kanye ne-flexible wedge.
Uhlobo lwebhonethi eboshiwe lusasebenza ezingeni lokushisa eliphezulu kodwa lolu hlobo lungavuza uma umfutho ukhuphuka.Kuzinhlelo zokusebenza ezingaphezulu kuka-500 psi, sebenzisa i-valve yophawu lokucindezela ngenxa yokwanda kophawu njengoba ingcindezi yangaphakathi ikhula.
Idizayini iphinde ivumele ukuthintana okuncane phakathi kwemidiya nediski.Phakathi naleso sikhathi, umklamo we-wedge wenza kungabi lula ukunamathela esihlalweni.
Izinhlelo zokusebenza zingaphansi kwe-ANSI Class 600, sebenzisa i-valve yesango lebhonethi eboshiwe.Kodwa-ke, ngezicelo zokucindezela okuphezulu, sebenzisa ama-valve esango lokucindezela.Ukucindezela okuphezulu kungasusa amabhawodi ohlotsheni lwebhonethi eboshiwe.Lokhu kungaholela ekuvuzeni.
Ibhonethi Eboshiwe kanye namaValves e-Pressure Seal Globe
Ivalvu yembulunga ifana ncamashi nevalvu yesango kodwa esikhundleni sediski egayiwe, isebenzisa idiski efana nembulunga evalayo, evulayo noma ecindezela imidiya.Ngokuyinhloko, lolu hlobo lwe-valve lwenzelwe izinjongo zokudonsa.Okubi kwe-valve yembulunga ukuthi ayikwazi ukusetshenziswa nemidiya enamazinga aphezulu okugeleza.
Ama-valve embulunga, ezinhlelweni zokukhiqiza amandla, ayasebenza ekulawuleni ukugeleza.Ukwengeza, uma kuqhathaniswa namanye ama-valve, i-valve yembulunga inomklamo olula, okwenza ukulungiswa kube lula.Idizayini idala ukungqubuzana okuphansi okugcina kunwebe impilo yesevisi yamavalvu.
Ukucatshangelwa lapho ukhetha ama-valve embulunga uhlobo lwe-medium, isivinini sokugeleza saleyo medium eshiwo kanye nenani lokulawula elidingekayo ku-valve.Ngaphezu kwalokhu, isihlalo, i-disc kanye nenani lokujika ukuvula nokuvala i-valve akufanele futhi kuthathwe kalula.
Uhlobo lwebhonethi eboshiwe lusasebenza ezingeni lokushisa eliphezulu kodwa lolu hlobo lungavuza uma umfutho ukhuphuka.Kuzinhlelo zokusebenza ezingaphezu kuka-500 psi, sebenzisa i-valve yophawu lokucindezela ngoba uphawu lwayo luyanda njengoba ingcindezi yangaphakathi ikhula.
I-Bolted Bonnet Swing Check noma i-Pressure Seal Tilt Disc Check Valves
Ama-valve okuhlola angama-anti-backflow valves.Okushiwo lokhu ukuthi ivumela ukugeleza kwemidiya okungaqondile.Idizayini ye-angled disc engu-45-degree inciphisa ukubethelwa kwamanzi futhi ingakwazi ukuzivumelanisa nemidiya enesivinini esikhulu.Futhi, umklamo uvumela ukwehla kwengcindezi ephansi.
Amavalvu okuhlola avikela lonke uhlelo lwamapayipi kanye nezinto zokusebenza ekulimaleni okungaba khona ekugelezeni okubuyela emuva.Kuwo wonke ama-valve, hlola ama-valve, mhlawumbe, athatha umonakalo omkhulu njengoba lezi zivame ukuvezwa kakhulu kumidiya nezinye izinselele zokusebenza.
Ukugawula amanzi, ukujamisa nokushadisa yizinkinga ezimbalwa ezivamile zama-valve okuhlola.Ukukhetha i-valve efanele kusho ukusebenza kahle kwe-valve.
Ibhonethi eboshiwe kanye namavalvu edisc etshekisa uphawu lokucindezela abiza kakhulu kunanoma iyiphi imiklamo ye-valve yokuhlola.Ukwengeza, idizayini ye-tilt disc ivala ngokuqinile kuneminye imiklamo ye-valve yokuhlola.Njengoba inomsebenzi olula, ukugcina lolu hlobo lwe-valve nakho kulula.
Ama-valve okuhlola ayizengezo ezibalulekile kunoma yiluphi uhlelo lokusebenza oluhlotshaniswa nomjikelezo ohlangene kanye nezitshalo zamandla asetshenziswa ngamalahle.
Amavalvu Wokuhlola Amabili
Kubhekwa njengento ehlala isikhathi eside, esebenza kahle futhi engasindi kune-valve yokuhlola i-swing, i-valve yokuhlola kabili ineziphethu ezandisa isikhathi sokuphendula kwe-valve.Indima yayo ohlelweni lwamapayipi ezitshalo zamandla ukuzivumelanisa nezinguquko ezisheshayo ekugelezeni kwemidiya.Lokhu, futhi, kuvame ukunciphisa ingozi yesando samanzi.
I-Nozzle Check Valves
Lolu uhlobo olukhethekile lwe-valve yokuhlola.Ngezinye izikhathi kubizwa ngokuthi ama-valve okuhlola athule.Idizayini iyasiza ikakhulukazi uma kunesidingo sokuphendula ngokushesha ngokumelene nokugeleza okungemuva.Futhi, uma kukhona usongo oluqhubekayo lokubuyela emuva, sebenzisa le valve.
Idizayini inciphisa imiphumela yokushaywa kwamanzi kanye nokudlidliza okubangelwa abezindaba.Kungase futhi kunciphise ukulahlekelwa kwengcindezi futhi kunikeze impendulo esheshayo ekuvaleni.
Ama-valve okuhlola i-nozzle acabangela isivinini esidingekayo ukuze uvule i-valve.Imidiya ewuketshezi ayidingi ukuthi ibe sejubaneni eliphezulu ukuze ivale i-valve.Kodwa-ke, i-valve ivala ngokushesha lapho kunokuncipha okukhulu kokugeleza kwemidiya.Lokhu kwenzelwa ukunciphisa ukushaywa kwamanzi.
Amavalvu okuhlola i-Nozzle enziwa ngendlela oyifisayo kakhulu ukuze afanele izidingo zeplanti kagesi.Ingaklanywa ukuthi ilingane nohlelo lokusebenza.Ayincikile nakusayizi wepayipi.
Amavalvu Ebhola Ahlezi Ensimbi
Ama-valve ebhola ayingxenye yomndeni wekota.Isici sayo esiyinhloko yisakhiwo esifana nebhola esishintsha u-900 ukuze uvule noma uvale.Lokhu kusebenza njengesivimbelo kwabezindaba.
Izakhiwo zokutshala amandla zisebenzisa ama-valve ebhola ahlezi ngensimbi ngoba lawa angakwazi ukumelana nokucindezela okuphezulu kanye nezinga lokushisa elingaphezu kuka-10000F.Ngaphezu kwalokho, ama-valve ebhola ahlezi ngensimbi ayakwazi ukuqina futhi akulula ukugqokwa kwezihlalo uma kuqhathaniswa nozakwabo abahlezi kahle.
I-bi-directional metal-to-metal sealing yayo inikeza amandla angcono okuvala uma kuqhathaniswa namanye ama-valve.Kubiza kancane ukulungisa ama-valve anjalo.Njengoba ikwazi ukumelana namazinga okushisa aphezulu, iyakwazi ukumelana nomlilo.
Ivaluvu yeButterfly Esebenza Kakhulu
I-valve yovemvane inomzimba ofana ne-wafer onediski elincanyana elizungeza kabili.Njengoba ingasindi, kulula ukuyifaka, ukunakekela nokulungisa.
Uma kungenjalo kwaziwa ngokuthi yi-HPBV, amavalvu ovemvane asebenza kahle anokushintshana okubili esikhundleni sokukodwa.Lokhu kudala ikhono elingcono lokuvala.Iphinde idale ukungqubuzana okuncane, okuholela empilweni ende yesevisi ye-valve.
Ama-valve ovemvane asebenza kahle avame ukusetshenziswa ekufakweni kwamanzi, izinhlelo zamanzi okupholisa kanye nokusetshenziswa kwamanzi angcolile ezimbonini.I-HPBV inamandla okumelana nomfutho ophezulu kanye nezinga lokushisa uma indawo yokuhlala iyinsimbi.
Amavavu Ovemvane Ahlala Ngokuqinile
Lolu hlobo lwe-valve uvemvane luvame ukusetshenziselwa ukucindezela okuphansi kanye nezinga lokushisa, kanye nezinhlelo zokusebenza zezitshalo zamandla ezingaqinile.Njengoba isihlalo sayo ngokuvamile esenziwe ngerabha yezinga eliphezulu, singavala i-valve ngempumelelo ezinhlelweni zokucindezela okuphansi.
Lolu hlobo kulula ukulufaka nokunakekela.Idizayini yayo elula yenza ama-valve agxilile ahlezi eqinile angabizi kakhulu ukuwafaka.
Ama-Valves Butterfly ama-Triple Offset
Amavalvu evemvane okuthathu ane-offset yesithathu eyengeziwe ebekwe esihlalweni.Le offset yesithathu inciphisa ukungqubuzana lapho ivula futhi ivala i-valve.Le valve iphinde inikeze ukuqina kwegesi kanye nokugeleza kwe-bi-directional.Lolu uhlobo oluphumelela kakhulu lwe-valve uvemvane lapho ukucindezela okuphezulu kanye nezinga lokushisa kuyizinto ezicatshangelwayo eziphezulu.
Ihlinzeka ngokuvala okuqinile okuhle kakhulu nempilo yesevisi ende phakathi kwazo zonke izinhlobo ezahlukene zamavalvu ovemvane emakethe.
Ukuhlukaniswa Kwevaluvu Embonini Yezimboni Zamandla
Uhlobo ngalunye lohlelo lokusebenza lokukhiqiza amandla ludinga isethi ehlukile yezidingo zokulawula ukugeleza.Uma sekushiwo, kunenqwaba yamavalvu ohlelweni olunikeziwe lwamapayipi ezimbonini zikagesi.Ngenxa yohlobo lwezinqubo ezenzeka engxenyeni ethile yesistimu yamapayipi, ama-valve ezimbonini zezitshalo zamandla nawo adinga ukuthatha izindima ezihlukene.
Amavaluvu Okuqina Okuphezulu Izinsimbi
Ukuze uthole i-slurry ephezulu yobuqotho, ama-valve adinga ukuvaleka okuqinile.Idiski kufanele ishintshwe kalula ngoba isikhathi esiningi, ama-slurries adlulayo ayagqwala noma ayalimaza.Ngomzimba, okuhle kakhulu insimbi nensimbi engagqwali yesiqu.
Amavalvu Ezinsiza Zokuzihlukanisa
https://www.youtube.com/watch?v=aSV4t2Ylc-Q
Ama-valve asetshenziselwa ukuhlukaniswa ama-valve amisa ukuhamba kwemidiya ngenxa yezizathu ezimbalwa.Lezi ziwela ezigabeni ezine:
1. I-Bonnet Gate Valve
I-valve yesango lebhonethi engcono kakhulu kufanele yenziwe ngensimbi ekhonjiwe.Amaringi ezihlalo zayo kufanele futhi ashiselwe ukuvimbela ukuvuza okungenzeka.
2. Pressure Seal Gate Valve
Imiklamo emibili, ehlanganisiwe futhi ehambisanayo, kufanele ibe nobuso obunzima futhi ibe nekhono lokuzihlanza.Kufanele futhi kube lula ukuyinakekela nokulungisa.
3. I-Pressure Seal Globe Valve
Ezinsizeni ezinomfutho ophezulu, idiski, izindandatho zezihlalo, kanye nesihlalo esingemuva kufanele kube ubuso obuqinile ukuze kuqinisekiswe impilo ende yesevisi.
4. I-Bolted Bonnet Globe Valve
I-valve yeglobhu yebhonethi eboshiwe ivame ukusetshenziselwa izinsizakalo zokudonsa, i-valve efanelekile yalolu hlobo kufanele iphonswe ngezigaba eziwugqinsi ezindaweni lapho kunokucindezeleka okwengeziwe.Ukuqinisekisa ukuthi kukhona amandla amancane okuvuza, iringi yesihlalo kufanele ishiselwe.
Amavavu Okuvikela Ukuhlehla Kokugeleza
Lawa ma-valve avikela i-counterflow.Ama-valve alolu hlobo kufanele abe nezindawo ezihlezi kanzima kanye nama-anti-corrosive bearings.Ngaphezu kwalokhu, i-valve kufanele ibe nezikhonkwane ezinkulu zehinge ububanzi ukuze kube nendawo yokumunca ukunyakaza kwemidiya.
Amavalvu akulesi sigaba afaka okulandelayo:
– Ivalvu yokuhlola ibhonethi eboshiwe
- I-valve yokuhlola uphawu lokucindezela
- I-valve yokuhlola i-nozzle
– Dual plate check valves
Amavalvu ezicelo ezikhethekile
Kukhona nezicelo ezikhethekile zamavalvu athile.Lokhu kuncike ohlotsheni lwensiza yamandla kanye nezidingo zesikhungo sikagesi.
– Triple offset uvemvane valve
– Ivalve yevemvane esebenza kahle kakhulu
– Ivalve yevemvane ene-eccentric kabili
– I-valve yebhola ehlezi ngensimbi
– Ivalve yevemvane ehlezi iqinile
Isifinyezo
Ama-valve ezimbonini asetshenziswa ezitshalweni zikagesi ngokuvamile abhekana nokucindezela okukhulu nokucindezeleka.Ukwazi uhlobo olulungile lwe-valve kuqinisekisa ukusetshenziswa okungcono nokulungile kokukhiqiza amandla.
Isikhathi sokuthumela: Feb-25-2018