Intshayelelo kwiivalvu zeGlobe

Iivalvu zeglobhu

Iivalvu zeGlobhu sisivalo esihambayo esinemigca kwaye ziyilelwe ngokuyintloko ukumisa, ukuqala nokulawula ukuhamba. Idiski yevalve yeGlobhu inokususwa ngokupheleleyo kwindlela yokuhamba okanye inokuvala ngokupheleleyo indlela yokuhamba.

Iivalvu zeGlobhu eziqhelekileyo zinokusetyenziselwa ukubekelwa bucala kunye neenkonzo zokubetha. Nangona ezi zivalo zibonisa ukuhla koxinzelelo oluphezulu kancinane kune-straight=through valves (umz., isango, iplagi, ibhola, njl.njl.), zisenokusetyenziswa apho ukuhla koxinzelelo ngevalvu ingeyonto elawulayo.

Ngenxa yokuba yonke ingcinezelo yenkqubo eqhutywe kwi-disc idluliselwa kwi-valve stem, umda wobungakanani obusebenzayo kula ma-valve yi-NPS 12 (DN 300). Iivalvu zeglobhu ezinkulu kune-NPS 12 (DN 300) zihlukile kunomgaqo. Iivalvu ezinkulu zinokufuna ukuba kusetyenziswe amandla amakhulu kwisiqu ukuvula okanye ukuvala ivalve phantsi koxinzelelo. Iivalvu zeglobhu ngokobungakanani ukuya kuthi ga kwi-NPS 48 (DN 1200) zenziwe zaza zasetyenziswa.

Iivalvu zeglobhu zisetyenziswa kakhulu ukulawula ukuhamba. Uluhlu lolawulo lokuhamba, ukuhla koxinzelelo, kunye nomsebenzi kufuneka kuthathelwe ingqalelo kuyilo lwevalvu ukuthintela ukusilela kwangaphambi kwexesha kunye nokuqinisekisa ngenkonzo eyanelisayo. Iivalvu eziphantsi koxinzelelo oluphezulu-umahluko wenkonzo yoxinzelelo-throttling zifuna isivali sevalvu eyilwe ngokukodwa.

Ngokuqhelekileyo uxinzelelo oluphezulu oluhlukeneyo kwi-disc ye-valve akufanele ludlule i-20 yepesenti yoxinzelelo oluphezulu oluphezulu okanye i-200 psi (1380 kPa), nayiphi na into encinci. Iivaluvu ezinetrim ekhethekileyo zisenokwenziwa ukulungiselela izicelo ezidlula le mida yoxinzelelo lokwahlukana.

Ivalve yeglowubhu yentsimbi yentsimbi yoshishino lweoyile negesi

Uyilo lomzimba weevalvu zeGlobe

Zintathu iindlela zoyilo ezingundoqo zomzimba kwiivalvu zeGlobhu, ezizezi: Ipateni yeTee okanye iZ-body, iAngle Pattern kunye neWye Pattern okanye iY-body body.

Ipateni yeTee uyilo lwevalvu yeglowubhulolona hlobo lomzimba luxhaphakileyo, olunediaphragm engu-Z. Ukumiselwa okuthe tye kwesihlalo kuvumela isiqu kunye nediski ukuba zihambe nge-perpendicular kumgca othe tye. Olu luyilo lune-coefficient ephantsi yokuhamba kunye nokuhla koxinzelelo oluphezulu. Zisetyenziswa kwiinkonzo zokubetha ngamandla, njengemigca yokudlula ejikeleze ivalve yolawulo. Iivalvu zeglobhu zeTee-pattern zisenokusetyenziswa kwizicelo apho ukwehla koxinzelelo kungeyongxaki kwaye kufuneka i-throttling.

 

 

Ipateni ye-engile yoyilo lweevalvu zeglowubhuluhlengahlengiso lwesiseko sevalve yeTee Pattern Globe. Iziphelo zale valve yeGlobe zikwi-engile ye-90 degrees, kwaye ukuhamba kwamanzi kwenzeka ngokujika okukodwa kwe-90 degrees. Zine-coefficient esezantsi kancinane yokuhamba kune-wye-pattern Globe valves. Ziye zisetyenziswe kwizicelo ezinamaxesha okuhamba kwe-pulsating ngenxa yokukwazi ukusingatha umphumo we-slugging wolu hlobo lokuhamba.

 

 

iWye Pattern Globe valves uyilo, yenye indlela yokwehla koxinzelelo oluphezulu, olufumaneka kwiivalvu zeGlobe. Isihlalo kunye nesiqu zi-engile malunga nama-45 degrees, yintoni enika indlela ethe tye ekuvulekeni okugcweleyo kwaye inikezela okona kuxhathisa ukuhamba. Zinokuqhekeka ixesha elide ngaphandle kokukhukuliseka okukhulu. Ziye zisetyenziselwa kakhulu ukuthoba ngexesha lomsebenzi wonyaka okanye wokuqalisa. Zinokugqithwa ukuze zisuse ubumdaka xa zisetyenziswa kwimizila yokuhambisa amanzi edla ngokuvalwa.

IDiski kunye neSitulo kunye neSithi seevalvu zeGlobe

Idisk:Olona yilo lwediski luxhaphakileyo kwiivalvu zeGlobhu zezi: idiski yebhola, idisk yokwakheka kunye nediski yeplagi. Uyilo lwediski yebhola lusetyenziswa ikakhulu kuxinzelelo oluphantsi kunye neenkqubo zobushushu obuphantsi. Iyakwazi ukujikeleza, kodwa ngokomgaqo isetyenziselwa ukumisa kwaye iqalise ukuhamba.

Uyilo lwedisk lokuqulunqa lusebenzisa umsesane onzima, ongeyontsimbi kwidiski, oqinisekisa ukuvalwa okungqongqo.

Uyilo lwediskhi yokuplaga lubonelela ngokucofa okungcono kunebhola okanye uyilo loyilo. Zifumaneka kuyilo oluninzi olwahlukeneyo kwaye zonke zinde kwaye zicolile.

Isihlalo:Izihlalo zevalve yeglowubhu zinokudityaniswa okanye zikrwelwe kumzimba wevalvu. Iivalvu ezininzi zeGlobhu zinezihlalo ezingasemva ngaphakathi kwiBonnet. Izihlalo ezingasemva zibonelela ngetywina phakathi kwesiqu kunye neBonnet kwaye zithintela uxinzelelo lwenkqubo ekwakhiweni ngokuchasene nevalve yokupakisha, xa ivelufa ivuleke ngokupheleleyo. Izihlalo zangasemva zihlala zifakwa kwiivalvu zeGlobe.

Isiqu:Iivalvu zeglowubhu zisebenzisa iindlela ezimbini zokudibanisa idiski kunye nesiqu: i-T-slot kunye nokwakhiwa kwe-disk nut. Kuyilo lwe-T-slot, i-disk islayidi phezu kwesiqu, ngelixa kuyilo lwe-disk nut, i-disk is screwed kwi-stem.

Ukwakhiwa kwevalve yeGlobe

Iivalvu zeglowubhu zihlala zineziqu ezinyukayo, kwaye iisayizi ezinkulu zezangaphandle zolwakhiwo lwe-screw kunye nedyokhwe. Iinxalenye zevalve yeGlobe ziyafana nezo zevalve yesango. Olu hlobo lwesivalo lunezihlalo kwinqwelomoya ehambelanayo okanye ethambekele kumgca wokuhamba.

Ukugcinwa kweevalvu zeGlobe kulula, njengoko iidiski kunye nezihlalo zilungiswa ngokukhawuleza okanye zitshintshwe. Oku kwenza ukuba iivalvu zeGlobe zilungele ngokukodwa iinkonzo ezifuna ukulungiswa rhoqo kweevalvu. Apho iivalve zisebenza ngesandla, uhambo olufutshane lwediski lubonelela ngeenzuzo ekulondolozeni ixesha lomsebenzisi, ngakumbi ukuba iivalve zihlengahlengiswa rhoqo.

Ukwahluka okuphambili kuyilo lweGlobe-valve kwiindidi zeediski eziqeshiweyo. Iidiski zohlobo lweplagi zinexesha elide, uqwalaselo olucociweyo olunomgangatho obanzi wokuthwala. Olu hlobo lwesitulo lubonelela ngokuxhathisa okuphezulu kwisenzo sokukhukuliseka komsinga wolwelo. Kwi-disc yokubunjwa, i-disc inobuso obunqamlekileyo obucinezelekileyo malunga nokuvula isihlalo njenge-cap. Olu hlobo lolungiselelo lwesitulo alufanelekanga ukubethelwa koxinzelelo oluphezulu oluhlukeneyo.

Kwi-iron-iron Globe valves, i-disc kunye nezihlalo zokuhlala zihlala zenziwe ngobhedu. Kwiivalvu zentsimbi zeGlobe zobushushu ukuya kuthi ga kwi-750 ° F (399 ° C), isinxibo senziwe ngokubanzi ngentsimbi engatyiwayo kwaye ke sibonelela ngokuxhathisa ukubamba kunye nokugalela. Ubuso bokukhwelana buqhele ukunyangwa ngobushushu ukufumana amaxabiso obunzima obahlukeneyo. Ezinye izinto zetrim, ezibandakanya i-cobalt-based alloys, nazo zisetyenziswa.

Umphezulu wokuhlala uphantsi ukuqinisekisa ukudibana komphezulu ogcweleyo xa ivalve ivaliwe. Kwiiklasi zoxinzelelo oluphantsi, ukulungelelaniswa kugcinwa yi-lock lock ende yediski. Uxinzelelo oluphezulu, izikhokelo zediski zifakwe kumzimba wevalvu. I-disc ijika ngokukhululekileyo kwisiqu ukunqanda ukukrala kobuso bediski kunye neringi yesitulo. Isiqu sithwala ngokuchasene nepleyiti eqinisiweyo, sisusa intlala yesiqu kunye nediski kwindawo ekudityanwa kuyo.

Indlela yokuhamba kweevalvu zeGlobe

Kwizicelo ezinobushushu obuphantsi, iivalve zeGlobe ziqhele ukufakwa ukuze uxinzelelo lube phantsi kwediski. Oku kufaka isandla ekusebenzeni okulula kwaye kunceda ukukhusela ukupakisha.

Ukusetyenziswa kwenkonzo yomphunga wobushushu obuphezulu, iivalve zeGlobe zifakwe ukuze uxinzelelo lube ngaphezulu kwediski. Ngaphandle koko, i-stem iya kwenza isivumelwano xa ipholisa kwaye ithambekele ekuphakamiseni idiski esihlalweni.

Izinto eziluncedo kunye nezingeloncedo kwiivalvu zeGlobe

Izinto eziluncedo:

• Ukukwazi ukuvala kakuhle
• Iphakathi ukuya kwisakhono sokudlala kakuhle
• I-stroke emfutshane (xa kuthelekiswa nevalve yesango)
• Ifumaneka ngetee, i-wye, kunye neepateni ze-engile, nganye inikezela ngezakhono ezizodwa
• Kulula ukwenza umatshini okanye ukubuyisela kwakhona izihlalo
• Nge-disc engaqhotyoshelwanga kwisiqu, ivalve ingasetyenziswa njengevalve yokumisa

Izinto ezingeloncedo:

• Ukwehla koxinzelelo oluphezulu (xa kuthelekiswa nevalve yesango)
• Ifuna amandla amakhulu okanye i-actuator enkulu ukuhlalisa ivalve (ngoxinzelelo phantsi kwesitulo)
• Ukutyhutyha ukuhamba ngaphantsi kwesihlalo kunye nokuhamba kwe-shutoff phezu kwesihlalo

Usetyenziso oluqhelekileyo lweevalvu zeGlobhu

Oku kulandelayo zezinye zeendlela eziqhelekileyo zokusetyenziswa kweevalvu zeGlobe:

• Iinkqubo zokupholisa zamanzi apho ukuhamba kufuneka kulawulwe
• Inkqubo yeoli yesibaso apho ukuhamba kulawulwa kwaye ukuvuza kubalulekile
• Imijelo yeendawo eziphakamileyo kunye neendawo ezisezantsi xa ukuvuza kunye nokhuseleko ziyingqwalasela enkulu
• Amanzi okuphakela, ukutya kweekhemikhali, ukutsalwa komoya wecondenser, kunye neenkqubo zokukhupha amanzi
• Imibhobho yebhoyila kunye nedreyini, iivenji eziphambili zomphunga kunye nedreyini, kunye nemijelo yesifudumezi
• Izitywina ze-turbine kunye ne-drain
• Inkqubo yeoyile ye-turbine lube kunye nabanye