Ama-valve e-Butterflyzitholakala yonke indawo ekusetshenzisweni kwezimboni futhi ziyingxenye ebalulekile yokulawula ukugeleza koketshezi oluhlukahlukene kumapayipi.Ukucatshangelwa okuyinhloko lapho ukhetha futhi usebenzisa i-valve ye-butterfly isilinganiso sayo esiphezulu sokucindezela.Ukuqonda lesi silinganiso kubalulekile ukuze kuqinisekiswe ukusebenza okuphephile nokusebenza kahle kwamasistimu oketshezi.
Kulesi sihloko, sizocubungula umqondo wesilinganiso sokucindezela okukhulu okungamelana ne-valve uvemvane, futhi sifunde umthelela kungcindezi elinganiselwe evela ezicini ezifana nedizayini yevalvu uvemvane, okokusebenza, ukuvala, njll.
Iyini ingcindezi ephezulu?
Isilinganiso sokucindezela esiphezulu se-valve uvemvane sibhekisela ekucindezelweni okuphezulu lapho i-valve uvemvane ingasebenza khona ngokuphepha ngaphandle kokungasebenzi kahle noma ukuphazamisa ukusebenza.Okulandelayo yizici ezimbalwa ezinquma isilinganiso esiphezulu sokucindezela kwe-valve uvemvane
1. Izinto zevalve ye-Butterfly
Izinto ezisetshenziselwa ukwakha umzimba we-valve, ipuleti le-valve, isiqu se-valve kanye nesihlalo se-valve yizinto eziyinhloko ekunqumeni isilinganiso somfutho we-valve uvemvane.Izinto eziqinile eziqinile, ukumelana nokugqwala nokuzinza kwezinga lokushisa zingamelana nezingcindezi eziphakeme.Isibonelo, ama-valve ovemvane ensimbi engenasici angakwazi ukumelana nezingcindezi eziphakeme ngenxa yokumelana nokugqwala kwawo okuhle kakhulu namandla.
Iisihlalo se-valveimpahla yokuvalaizophinde ithinte amandla okuthwala ingcindezi yevalve uvemvane.Isibonelo, i-EPDM, i-NBR, njll. izinto ezivame ukusetshenziswa zokuvala injoloba, kodwa amandla azo okuthwala ingcindezi alinganiselwe.Kuzinhlelo zokusebenza ezidingekayo ukuze zimelane nezingcindezi eziphakeme, ezinye izinto zokuvala ezimelana nengcindezi zingakhethwa.
2. Isakhiwo se-valve ye-Butterfly
Ukwakheka kwe-valve uvemvane kungenye into ebalulekile ethinta ukucindezela kwe-valve uvemvane.Isibonelo, i-valve uvemvane evala uphawu emaphakathi ngokuvamile isetshenziswa ezinhlelweni ezinengcindezi ephansi, okuyi-PN6-PN25.Idizayini yevalvu uvemvane ene-eccentric kabili ithuthukisa ukusebenza kokuvala ngokushintsha ukwakheka kwepuleti lovemvane nesihlalo sevalvu ukuze imelane nokucindezela okukhulu.
3. Butterfly valve umzimba ukujiya
Kunobudlelwano obulinganayo phakathi kobukhulu bodonga lomzimba we-valve kanye nengcindezi.Imvamisa uma sikhulu isilinganiso sokucindezela kwe-valve, umzimba we-valve uvemvane uba mkhulu ukuze uvumelane namandla asetshenziswayo lapho umfutho woketshezi ukhula.
4. Izindinganiso zokuklama i-Butterfly valve pressure design
Izindinganiso zokuklama ze-valve uvemvane zizosho ukuthi ingcindezi enkulu kangakanani engakwazi ukumelana nayo.Amavalvu e-Butterfly akhiqizwa ngokuhambisana ne-API (American Petroleum Institute), ASME (American Society of Mechanical Engineers), ISO (International Organization for Standardization) kanye namanye amazinga embonini, futhi ahlolwa ngokuqinile futhi ahlolwe ukuze kuqinisekiswe ukuthi i-valve uvemvane ihlangabezana nemibandela eshiwo. izinga lokucindezela.
Ingabe ama-Butterfly Valves Akulungele Ukucindezela Okuphezulu?
Amavalvu ovemvane angahlukaniswa abe amavaluvu uvemvane, amavalve uvemvane anengcindezi ephansi, amavalve uvemvane anomfutho ophakathi, namavalve ovemvane anomfutho ophezulu ngokuya ngomfutho ojwayelekile.
1).I-vacuum butterfly valve—ivalve uvemvane umfutho wayo wokusebenza uphansi kunomfutho ojwayelekile womkhathi.
2).I-butterfly enengcindezi ephansii-valve-ivalve uvemvane enomfutho wegazi ongu-PN ongaphansi kuka-1.6MPa.
3).I-valve uvemvane enengcindezi emaphakathi—ivalve uvemvane enomfutho wegama elithi PN 2.5~6.4MPa.
4).I-valve yovemvane enengcindezi ephezulu—ivalve uvemvane enengcindezi encane engu-PN10.0~80.0MPa.
Ingcindezi enkulu elinganiselwe yevalve uvemvane ifana ncamashi nomphumela wepuleti elifushane lebhakede.Umthamo wamanzi uncike epuletini elifushane kakhulu.Okufanayo kuyiqiniso ngenani eliphezulu lokucindezela kwe-valve uvemvane.
Ngakho-ke sinquma kanjani isilinganiso esiphezulu sokucindezela?
Inqubo yokunquma isilinganiso sokucindezela esikhulu sovemvane kuwuchungechunge lokuhlola olwenziwa umenzi ukuze kuhlolwe ukusebenza kwevalvu nokunquma isilinganiso sokucindezela kwayo.Lezi zivivinyo zingabandakanya:
1. Ukuhlaziywa kwezinto
Yenza ukuhlaziya i-metallographic ezingxenyeni zamavalvu ovemvane ukuze kuqinisekiswe izakhiwo ezibonakalayo, futhi wenze izivivinyo zemishini ukuze uqinisekise ukuthi i-valve uvemvane ihlangabezana nezindinganiso ezinqunyiwe zamandla, i-ductility, njll.
2. Ukuhlolwa kwe-Hydrostatic
I-valve ingaphansi kwengcindezi yoketshezi engaphezu kokucindezela kwayo okulinganiselwe okuphezulu (imvamisa emazingeni okushisa azungezile noma aphakeme) ukuze ihlole ubuqotho bayo besakhiwo nokusebenza kokuvala.
1).Ukulungiselela ngaphambi kokuhlolwa
Ngaphambi kokwenza i-butterfly valve hydraulic test, amalungiselelo alandelayo adinga ukwenziwa:
a)Hlola ubuqotho bempahla yokuhlola ukuze uqinisekise ukuthi ukuhlolwa kungenziwa ngokuphepha nangokujwayelekile.
b)Qinisekisa ukuthi i-valve ye-butterfly ifakwe ngendlela efanele futhi uxhumano nomshini wokulinganisa ukucindezela kuvalwe kahle.
c)Khetha iphampu yamanzi enokucindezela okufanele ukuze uqinisekise ukuthi ingcindezi yokuhlola kanye nezinga lokugeleza lihlangabezana nezidingo.
d)Susa izinsalela ezingase zithinte imiphumela yokuhlolwa ngesikhathi sokuhlolwa futhi uqinisekise ukuthi indawo yokuhlola ihlanzekile futhi icocekile.
2).Izinyathelo zokuhlola
a)Okokuqala vala i-valve ku-valve uvemvane, bese uvula iphampu yamanzi, futhi kancane kancane ukwandisa ukucindezela kwamanzi ukuze ufinyelele ukucindezela kokuhlola.
b)Gcina ingcindezi yokuhlola isikhathi esithile futhi uhlole ukuthi akukho yini ukuvuza eduze kwevalve uvemvane.Uma kukhona ukuvuza, kufanele kubhekwane nakho kusenesikhathi.
c)Ngemuva kwenkathi yokuhlola, kancane kancane unciphisa ukucindezela kwamanzi futhi uhlanze i-valve ye-butterfly kanye nomshini wokulinganisa ukucindezela ukuze ugweme amabala amanzi ngemva kokuhlolwa.
3).Izindlela zokuhlola
Ngokuyinhloko kunezindlela ezilandelayo zokuhlola i-hydraulic valve uvemvane:
a)Indlela yokuhlola ingcindezi eqinile: Misa iphampu yamanzi, gcina ingcindezi yokuhlola amahora angu-1-2, futhi ubheke ukuthi akukho yini ukuvuza eduze kwevalve uvemvane.
b)Indlela yokuhlola i-Dynamic pressure: Ngenkathi ugcina ukugeleza kokuhlola nokucindezela, vula i-valve uvemvane, bheka ukuthi ivalvu isebenza ngokujwayelekile yini, futhi uhlole ukuthi akukho yini ukuvuza ngakuyo.
c)Ukuhlolwa kwengcindezi yomoya: Faka umfutho womoya noma wegesi kuvalvu uvemvane ukuze ulingise izimo zokusebenza futhi uhlole impendulo yalo ekuguquguqukeni kwengcindezi ukuze uqinisekise ukusebenza okuthembekile ngaphansi kwezimo eziguqukayo.
d)Ukuhlolwa kokuhamba ngebhayisikili: I-valve uvemvane ijikeleziswa ngokuphindaphindiwe phakathi kwezindawo ezivulekile nezivaliwe ngaphansi kwezimo ezihlukene zengcindezi ukuze kuhlolwe ukuqina kwayo nobuqotho bokuvala.
Kungani unquma isilinganiso sokucindezela esikhulu se-valve uvemvane?
Ukunquma isilinganiso sokucindezela esiphezulu kukuvumela ukuthi ukhethe i-valve ye-butterfly efanele yohlelo lokusebenza futhi uqinisekisa ukusebenza okuphephile ngaphakathi kwemingcele yokucindezela ecacisiwe.
1. Ukuhambisana Kwesicelo
Khetha i-valve uvemvane enesilinganiso sokucindezela esidlula ukucindezela okukhulu okungase kwenzeke ohlelweni lwamapayipi ukuvimbela ukugcwala ngokweqile kwevalve uvemvane.
2. Ukucatshangelwa kwezinga lokushisa
Cabanga ngokushintsha kwezinga lokushisa ohlelweni loketshezi, hhayi nje ngenxa yokwanda nokuncipha kwezinga lokushisa.Amazinga okushisa aphezulu azobangela ukwanda komfutho we-fluid, futhi amazinga okushisa aphezulu azothinta izakhiwo ezibonakalayo ze-valve futhi anciphise amandla ayo okubamba ingcindezi.
3. I-Pressure Surge Protection
Faka izisetshenziswa ezifanele zokukhulula ingcindezi noma izicindezeli ezihlikihlayo ukuze unciphise ukukhuphuka komfutho futhi uvikele i-valve uvemvane ekuphakameni okungazelelwe kokucindezela okudlula umthamo walo olinganiselwe.
Kafushane, ingcindezi enkulu ukuthi auvemvane valveingamelana kunqunywa ukwakheka kwayo, impahla, ukwakheka kanye nendlela yokubeka uphawu.Isilinganiso sokucindezela okukhulu siyipharamitha ebalulekile yokuqinisekisa ukusebenza okuphephile nokusebenza kahle kwamavalve ovemvane.Ngokuqonda izici ezithinta izilinganiso zokucindezela, ukuthi zinqunywa kanjani, nomthelela wazo ekukhethweni nasekusetshenzisweni kwe-butterfly valve, i-valve ye-butterfly efanelekile ingakhethwa ngendlela efanele ukuze kuqinisekiswe ukuphepha nokusebenza kwe-valve butterfly ngesikhathi sokusetshenziswa.