Yintoni iGlobe Valve: Umsebenzi, Iingenelo, kunye nezicelo

Yintoni iGlobe Valve

Kwiinkqubo zemibhobho yemizi-mveliso, ulwakhiwo lwamanzi kunye nokuhanjiswa kwamanzi, kunye neemeko ezahlukeneyo zolawulo lolwelo, ivalvu yehlabathi yivalvu yokuvala esetyenziswa kakhulu. Umsebenzi wayo ophambili kukulawula ngokuchanekileyo ukuhamba kunye nokuvaleka kwemidiya (ezifana nolwelo, iigesi, umphunga) ngaphakathi kwipayipi. Isebenza ngokuguqula intshukumo yokujikeleza kwesiqu ibe yintshukumo ethe nkqo, ethe tye yediski—xa umphezulu wokuvala wediski ucinezela ngokuqinileyo kumphezulu wokuvala isihlalo, indlela yokuhamba iyavalwa, kwaye ukuhamba kwemidiya kuyavalwa; xa idiski iphakanyiswa kude nesihlalo, indlela yokuhamba iyavuleka, ivumela imidiya ukuba idlule, ivumela ulawulo lolwelo oluguquguqukayo.

Izinto eziphambili zeValve yeGlobe

Ukusebenza okuzinzileyo kweIvalvu yeGlobeixhomekeke kumsebenzi odibeneyo wezinto ezibalulekileyo ezininzi, nganye yenza umsebenzi othile ukuqinisekisa ukusebenza kokutywina kwevalvu kunye nokuthembeka kokusebenza.

Umzimba

Umzimba “yifreyimu ephambili” yevalvu yeglobe, edla ngokwenziwa ngentsimbi ephosiweyo, intsimbi yekhabhoni, intsimbi engatyiwayo, okanye ezinye izinto ezinamandla aphezulu, ezimelana nokugqwala. Iqulethe umjelo wangaphakathi (ukungena kunye nokuphuma). Umzimba kufuneka umelane noxinzelelo lwemidiya ngaphakathi kwipayipi kwaye unike isiseko sokufakela nokubeka iindawo zangaphakathi ezifana nesihlalo kunye nediski, nto leyo eyenza ukuba ibe yinxalenye ephambili yamandla olwakhiwo ngokubanzi.

Idiski

Idiski yinxalenye ephambili yokutywina elawula ukuhamba kwemidiya, idla ngokusebenza kunye neplagi kwezinye iindlela zoyilo. Imilo kunye nezinto zayo zikhethwa ngokusekelwe kwiimpawu zemidiya (umz., ukuba ne-corrosive, ubushushu, uxinzelelo). Umzekelo, isinyithi sixhaphakile kwiimeko zoxinzelelo oluphezulu, ngelixa irabha okanye iplastiki zinokusetyenziselwa usetyenziso lwe-corrosive oluphantsi koxinzelelo. Idiski ifikelela ekuvalekeni okuvaliweyo ngokudibana ngokusondeleyo nesihlalo.

Isihlalo

Isihlalo “ngumphezulu wesalathiso” wokutywina wevalvu yeglobe, oqiniswe ngaphakathi emzimbeni kwisiteshi sokuhamba kwemidiya. Umphezulu waso wenziwe ngomatshini ochanekileyo ukuqinisekisa ukudibana okuqinileyo nomphezulu wokutywina wediski. Izinto zesihlalo zifuna ukuguguleka okuhle kunye nokumelana nokutywina, okuhlala kubandakanya i-copper alloy, intsimbi engagqwaliyo, kunye nee-alloys eziqinileyo ukulwa nokukhukuliseka kwexesha elide kwimidiya kunye nokwandisa ubomi be-valve seal.

Isiqu

Isiqu "sibhuloho yokudlulisela" edibanisa i-actuator kwidiski, ngesiqhelo intonga enemisonto. Isiphelo esinye sinamathele kwidiski, kwaye esinye siqhagamshela kwi-actuator (umz., ivili lesandla, i-motor yombane). Iguqula amandla okuqhuba abe yintshukumo ethe nkqo yediski ngokujikeleza. Isiqu kufuneka sibe namandla aneleyo kunye nokumelana nokudinwa, kwaye umphezulu waso uhlala ufakwe i-chrome-plated okanye i-nitride ukunciphisa ukungqubana nokuthintela ukugqwala.

I-Actuator

I-actuator “ngumthombo wamandla” wevalvu yeglobe, esetyenziselwa ukulawula ukujikeleza kwesiqu ukuze kuvulwe kwaye kuvalwe. Ngokusekelwe kwindlela yokusebenza, ii-actuators zahlulwe zibe ziintlobo zesandla kunye neentlobo ezizenzekelayo:

• Ii-Actuators ezenziwe ngesandla:Ifanelekile ukusebenza ngesantya esiphantsi kunye nemibhobho enobubanzi obuncinci; ulwakhiwo olulula, ixabiso eliphantsi.
• Ii-Actuators ezizenzekelayo:Ifanelekile kulawulo olukude, ukusebenza rhoqo, okanye kwiimeko ezinkulu; ingadityaniswa neenkqubo zolawulo ukuze kulawulwe ngokuzenzekelayo, kuphuculwe ukusebenza kakuhle. Iintlobo ziquka ii-actuators zomoya, zombane, kunye ne-hydraulic.

Isebenza njani iGlobe Valve?

Umgaqo wokusebenza wevalvu yeglobe usekelwe kwingcamango yoyilo "lwesitywino esinyanzelekileyo" kunye "nesitywino esithe nkqo", esinokuhlulwahlulwa sibe ngamanqanaba amabini: ukuvula nokuvala.

1. Imeko Yokuvala:Isiqu “sifakwe ngaphakathi,” siqhubela idiski ezantsi ecaleni kwe-axis ethe nkqo yesihlalo de ubuso bokuvala idiski bucinezele ngokuqinileyo kubuso bokuvala isihlalo. Njengevalvu evalwe ngokunyanzelekileyo, uxinzelelo loqhagamshelwano phakathi kwediski nesihlalo luqinisekisa ukuvalwa nokuba phantsi koxinzelelo oluphantsi lwemidiya, nto leyo ethintela ukuhamba kwamanzi.
2. Imeko Yokuvula:Ukuze uvule ivalvu, isiqu sijikeleziswa kwicala elingasemva (ngesandla okanye nge-actuator), siphakamise idiski isuke esihlalweni size senze umsantsa. Imidiya inokugeleza ukusuka kwindawo yokungena ukuya kwindawo yokuphuma ngokusebenzisa esi sithuba. Ngokulawula ukuphakama kokuphakamisa kwediski, ubungakanani bomsantsa—kwaye ngaloo ndlela isantya sokuhamba—singalawulwa (umsebenzi wokuthomalalisa).
3. Ingqiqo engundoqo:Isitywino sixhomekeke ekudibaneni "ngobuso ngobuso" phakathi kwediski kunye nesihlalo, ngokungafaniyo "nokutyibilika okulinganayo" kwamasango kwiivalvu zesango. Olu yilo lubonelela ngokutywinwa okuthembekileyo ngakumbi xa kuvaliwe, ingakumbi kwiimeko ezifuna ukuvaleka okungqongqo kwamanzi.

Iingenelo kunye nokungalungi kweGlobe Valve

Iimpawu zoyilo lweevalvu zeglobe zinika iingenelo ezibalulekileyo kwiimeko ezithile, kodwa zikwanazo nemida. Ukukhetha kufuneka kusekelwe kuvavanyo olupheleleyo lweemfuno zesicelo.

Iingenelo zeeGlobe Valve

1. Ukusebenza kakuhle kokutywina:Njengevalvu evalwayo ngokunyanzeliswa, uxinzelelo lokuvalela lunokulawulwa ngokukhutheleyo, ukuqinisekisa ukuvalela okuthembekileyo nokuthintela ukuvuza, nokuba kukwiindawo ezinoxinzelelo oluphantsi.
2. Amandla okuTshabalalisa aMandla:Ulawulo oluchanekileyo lokuhamba kwamanzi lunokufezekiswa ngokulungelelanisa ukuphakama kokuphakanyiswa kwediski. Oku kufanelekile kwiimeko ezifuna ukulungiswa rhoqo kokuhamba kwamanzi kwaye kunciphisa ukukhukuliseka kolwelo kwidiski nakwisihlalo, nto leyo eyandisa ubomi benkonzo.
3. Ulwakhiwo oluncinci, Ulondolozo olulula:Ulwakhiwo lulonke lulula kakhulu kwaye luneenxalenye ezimbalwa, nto leyo efuna indawo encinci yokufaka. Uninzi lwezixhobo (umz., idiski, isihlalo) zinokuqhekeka kwaye zitshintshwe, nto leyo ebangela ukuba iindleko zokulungisa zibe phantsi.
4. Uluhlu olubanzi lwesicelo:Ifanelekile kwiindidi ezahlukeneyo zezixhobo kuquka amanzi, ioyile, umphunga, kunye negesi, kwaye iyakwazi ukumelana namaqondo obushushu aphezulu kunye noxinzelelo (iimodeli ezikhethekileyo zoxinzelelo oluphezulu oluphezulu zisetyenziswa kwiinkqubo zomphunga).

Iingxaki zeGlobe Valves

1. Ukulahlekelwa kuxinzelelo oluphezulu:Ngenxa yoyilo lwesihlalo, oluhambelana necala lokuhamba kwamanzi, ulwelo kufuneka lutshintshe icala (ukusuka kwindawo yokungena ukuya kwesinye isihlalo, emva koko luye kwindawo yokukhupha amanzi), nto leyo ebangela ukuxinana kunye neentshukumo. Oku kubangela ukulahleka koxinzelelo oluphezulu xa kuthelekiswa neevalvu zesango okanye zebhola.
2. Ayifanelekanga kwi-High-Viscosity okanye kwi-Contaminated Media:Ukungcola (umz., amasuntswana, intlenga) kunokubanjwa lula phakathi kwediski kunye nesihlalo, nto leyo eyonakalisa isitywina. Imidiya enoburhabaxa obuphezulu inokubangela ukumelana nokuhamba kwamanzi aphezulu, nto leyo eyenza kube nzima ukusebenza.
3. I-Torque Ephezulu Yokuvula/Yokuvala:Uqhagamshelo lwe-stem-disc olunemisonto kunye noxinzelelo olufunekayo lokutywina, i-valve yeglobe ifuna i-torque ephezulu yokusebenza xa ithelekiswa neevalve zesango, ingakumbi kwiindawo ezinobubanzi obukhulu okanye uxinzelelo oluphezulu.

Iintlobo zeeValve zeGlobe

Iivalvu zeglobe zinokwahlulwa zibe ziintlobo ezahlukeneyo ngokusekelwe kwizinto, ulwakhiwo, kunye nendlela yokusebenza, nganye ifanelekile kwiindlela ezahlukeneyo zokusetyenziswa.

Uhlulo ngokwezinto eziphathekayo

• I-Bellows Seal Globe Valve:Isebenzisa isakhiwo sesitywino se-bellows ukuthintela ngokufanelekileyo ukuvuza kwe-media ecaleni kwesiqu. Ilungele i-media enobungozi, etshayo, okanye ecocekileyo kakhulu (umz., amashishini eekhemikhali, amayeza), enika isitywino esingcono kakhulu.
• Ivalvu yeGlobe yeNtsimbi yeKhabhoni:Umzimba wenziwe ngentsimbi yekhabhoni (umz. Q235, 20# steel), inika amandla amahle kunye nokumelana nobushushu ngexabiso eliphantsi. Ifanelekile kwiipayipi zemizi-mveliso ngokubanzi (umz., unikezelo lwamanzi, iinkqubo zokufudumeza), kodwa ayinamandla okugqwala.
• Ivalvu yeGlobe yeNtsimbi Engagqwaliyo:Umzimba wenziwe ngentsimbi engagqwaliyo (umz., 304, 316), enika ukugqwala okugqwesileyo kunye nokumelana nobushushu obuphezulu. Isetyenziselwa izinto ezingcolisayo (umz., izisombululo zeekhemikhali, amanzi olwandle) okanye kwimizi-mveliso yokutya kunye namayeza aneemfuno eziphezulu zococeko.
• I-Aluminium Bronze Globe Valve:Umzimba wenziwe nge-aluminium bronze, enika ukumelana nokuguguleka okuhle kunye nokuchaphazeleka, kunye nokumelana nokugqwala okuthile. Ifanelekile kwiinqanawa, ubunjineli baselwandle, kunye nezinye iindawo ezifumileyo nezinomswakama ophezulu.
• Ivalvu yeGlobe yeCryogenic:Zenziwe ngezinto ezimelana ne-cryogenic (umz., intsimbi engatyiwayo enobushushu obuphantsi) ezinezakhiwo ezikhethekileyo zokutywina, ezi valve zisebenza kwiindawo eziqala kwi -40°C ukuya kwi -196°C. Zisetyenziselwa igesi yendalo enyibilikisiweyo (i-LNG), i-nitrogen engamanzi, kunye neminye imibhobho ye-cryogenic media.
• Ivalvu yeGlobe yoBushushu obuPhezulu:Umzimba kunye nezinto zokutywina zisebenzisa izixhobo ezisebenzisa ubushushu obuphezulu (umz., intsimbi ye-chrome-molybdenum, ii-alloys ezisebenzisa ubushushu obuphezulu), ezimelana nobushushu obungaphezulu kwama-400°C. Zisetyenziswa kwiibhoyila zomphunga, kwiinkqubo zeoyile yobushushu obuphezulu, nakwezinye iinkqubo zemidiya ezisebenzisa ubushushu obuphezulu.

Uhlulo ngokweSakhiwo

• Ivalvu yeGlobe yohlobo oluthe tye:Uhlobo oluqhelekileyo, olune-inlet kunye ne-outlet kumgca othe tye. Ulwelo lwenza utshintsho kwicala elinye kuphela, nto leyo ebangela ukulahleka koxinzelelo okuphantsi. Lusetyenziswa kakhulu kwiinkqubo ezahlukeneyo zemibhobho.
• Ivalvu yeGlobe yeNdlela Ezintathu:Inezibuko ezintathu (ngesiqhelo i-inlet enye/iindawo ezimbini zokungenisa okanye i-inlet ezimbini/i-outlet enye) zokuhambisa okanye ukuxuba ukuhamba kweendaba. Isetyenziswa kwiimeko ezifuna ukutshintsha indlela yokuhamba.
• Ivalvu yeGlobe yohlobo lwe-Angle:Ukungena kunye ne-outlet zikwi-engile ye-90°, ifanelekile ukufakwa kwiikona zepayipi. Oku kunciphisa isidingo seengqiniba zepayipi kwaye konga indawo, eqhelekileyo kwizixhobo ezincinci okanye kwiindawo ezixineneyo.

Uhlulo ngokweNkqubo yoBuchule

• Ivalvu yeGlobe esetyenziswa ngesandla:Isebenza ngevili lesandla okanye i-lever ukuze ijikelezise isiqu. Isakhiwo esilula, sixabiso liphantsi, sifanelekile ekusebenzeni rhoqo kwaye sinobubanzi obuncinci (≤DN50), njengeevalvu zamanzi zasekhaya okanye imigca yezixhobo ezincinci.
• Ivalvu yeGlobe yePneumatic:Isebenzisa umoya ocinezelweyo ukuqhuba isiqu nge-actuator yomoya. Impendulo ekhawulezayo, ifanelekile ukuzenzekela kwiikhemikhali, ipetroli, kunye nezinye izimboni ezifuna ukusebenza rhoqo okanye ulawulo olukude.
• Ivalvu yeGlobe yoMbane:Isebenzisa umbane ukuqhuba isiqu nge-actuator yombane. Ukuchaneka okuphezulu kolawulo, kunokudityaniswa neenkqubo ze-PLC/DCS zolawulo olukrelekrele. Isetyenziswa kwimibhobho emikhulu, kwizakhiwo eziphakamileyo, okanye kwiinkqubo ezizenzekelayo ezingenabantu.

Uhlulo ngokweMisebenzi

• Jonga iGlobe Valve:Idibanisa imisebenzi yevalvu yeglobe kunye nevalvu yokujonga. Ingavala ukuhamba kwaye ithintele ukubuya kwamanzi (umz., ukukhusela kwihamile yamanzi xa ipompo iyeka). Isetyenziswa kwiindawo zokufaka iipompo, kwiinkqubo zokufudumeza, nakwezinye iimeko ezifuna ukuthintela ukubuya kwamanzi.

Indlela Yokuchonga Iivalvu Zeglobe Ukuthelekiswa Neevalvu Zesango kunye Nezinye Iivalvu

Kwinjineli esebenzayo, iivalvu zeglobe zihlala zididaniswa neevalvu zesango, ibhola, itshekhi, kunye neevalvu zebhabhathane. Zinokubonwa ngokukhawuleza ngokuthelekisa iimpawu eziphambili.

Ivalvu yeGlobe vs. Ivalvu yeSango

Ivalvu yeGlobe vs. Ivalvu yeBhola

Ivalvu yeGlobe vs. Ivalvu yokujonga

Ivalvu yeGlobe vs. Ivalvu yeButterfly

Isetyenziselwa ntoni iGlobe Valve?

Zisebenzisa amandla azo okutywina nokuqhobosha athembekileyo, iivalvu zeglobe zisetyenziswa kakhulu kumashishini ahlukeneyo kunye nezicelo.

1. Iinkqubo zeMibhobho yezeMizi-mveliso:Isetyenziselwa ulawulo lwemidiya kumashishini eekhemikhali, ipetroli, kunye namandla—umz., ukwahlulwa/ukulawulwa kokuhamba komphunga womphunga, ulawulo lokudluliselwa kwesisombululo seekhemikhali—ingakumbi apho ukuvalwa okuqinileyo kuxinzelelo oluphantsi kubaluleke kakhulu.
2. Ubonelelo lwaManzi kunye nokuHanjiswa kwamanzi kwiZakhiwo:Isebenza njengezivali zokulawula isiphelo sendlela kwimibhobho yamanzi kunye nokufudumeza (umz., imibhobho yokuhambisa amanzi kwigumbi lokuhlambela/ikhitshi) yokulungisa ukuhamba kwamanzi ngesandla okanye ukucima.
3. Ukuhlanganiswa kwezixhobo:Isebenza njengezivalo zokungena/zokuphuma koomatshini abanjengeempompo, ii-heat exchangers, kunye nee-compressors, ilawula ukuhamba kwemidiya ukuya/ukusuka kwizixhobo kwaye iyikhusela (umz., ukuthintela ukubuya kwamanzi, ukulawula ukuhamba kwamanzi).
4. Iinkonzo zobushushu obuphezulu kunye noxinzelelo oluphezulu:Iintlobo ezikhethekileyo (iivalvu zeglobe ezinobushushu obuphezulu, ezinoxinzelelo oluphezulu) zisetyenziswa kwiibhoyila zomphunga nakwiinkqubo zeoyile yobushushu, zisebenzisa amandla azo okumelana neemeko ezinzima ukuze kulawulwe ngokuthembekileyo.
5. Ishishini lokutya kunye neyeza:Iivalvu zeglobhu zentsimbi engagqwaliyo, ezaziwa ngokuxhathisa ukugqwala okuphezulu kunye nokucoceka, zisetyenziselwa ukudlulisa imidiya (umz., amayeza, amanzi acocekileyo) apho kufuneka khona imigangatho yococeko.

Indlela yokufaka iGlobe Valve

Ukufakelwa ngokufanelekileyo kubalulekile ekusebenzeni kakuhle kokutywina kunye nobomi benkonzo yevalvu yeglobhu. Landela la manyathelo kunye nezilumkiso.

Ukulungiselela Ngaphambi Kokufaka

• Hlola iValve: Qinisekisa ukuba imodeli/iinkcukacha zevalve ziyahambelana neemfuno zombhobho (umlinganiselo woxinzelelo, uhlobo lwemidiya, ubungakanani). Jonga umzimba, idiski, kunye nesihlalo ukuba azinamonakalo okanye inkunkuma; qinisekisa ukuba iindawo zokuvala azinamonakalo.
• Coca uMbhobho: Susa ukungcola kwangaphakathi (umhlwa, i-weld slag) ukuze kuthintelwe ukuba kungaxinani phakathi kwediski kunye nesihlalo emva kokufakelwa, okunokonakalisa isitywini.
• Qinisekisa iNdlela yokuHamba: Iivalvu zeglobe azikho kwicala elinye. Umzimba uhlala une-arrow yendlela yokuHamba (“NGENA” → “PHUMA”). Qinisekisa ukuba i-arrow ihambelana nokuhamba kwe-media yokwenyani; ukufakwa ngasemva kuya kubangela ukungaphumeleli kwe-seal.

Amanyathelo okufaka

• Ukubeka kunye nokulungisa:Beka ivalvu phakathi kwesiphelo semibhobho, uqinisekise ukuba i-coaxial kunye nombhobho ukuze uphephe uxinzelelo. Yikhusele ngokusebenzisa uqhagamshelo olujijekileyo okanye olunemisonto (kwi-flanged, qinisa iibholithi ngokulinganayo ukuze uthintele ukugqwetheka komzimba).
• Unyango lokutywina:Kwiivalvu ezinemisonto, songa iteyiphu yokutywina imisonto okanye ufake isitywini kwimisonto. Kwiivalvu ezinemisonto, faka i-gasket ehambelanayo (umz. irabha, isinyithi) ukuqinisekisa uqhagamshelo olungenamanzi.
• Ukufakwa kwe-Actuator:Kwiivalvu ezizenzekelayo (zomoya, zombane), lungelelanisa kwaye uqhagamshele i-actuator kwisiqu ukuze isebenze kakuhle. Qhagamshela iintambo zolawulo (zombane) okanye imigca yomoya (zomoya) kwaye wenze uvavanyo olusebenzayo.

Ukuhlolwa Emva kokufakwa

• Uvavanyo lwesandla:Emva kokufakela, jikelezisa isiqu ngesandla (okanye uvule i-actuator) ukujonga ukuba ayivuleki/ivaliwe kakuhle na ngaphandle kokunamathela.
• Uvavanyo lokuvuza:Faka i-media kumbhobho (uvavanyo oluphantsi koxinzelelo olusebenzayo). Jonga ukuvuza emzimbeni wevalvu nakwiindawo zoqhagamshelo. Ukuba kufunyenwe ukuvuza, phinda uqinise iibholithi okanye ufake ezinye izitywini endaweni yazo.

Ukugcinwa kweValve yeGlobe

Ukugcinwa rhoqo kubalulekile ukuze kwandiswe ubomi benkonzo nokuqinisekisa ukusebenza kwexesha elide nokuthembekileyo.

Uhlolo oluQhelekileyo

• Ukuhlolwa koMbono:Ukuhlolwa kweveki nganye ukuba umzimba wakho awuvuthwanga, kukho imifantu, kukho ukuvuza konxibelelwano, kunye nokugqwala okanye ukuguquka kwesiqu somzimba.
• Uhlolo Lokusebenza:Sebenzisa ivalvu ngesandla okanye ngokuzenzekelayo izihlandlo ezi-1-2 ngenyanga ukuthintela ukuba isiqu singabambeki ngenxa yokungasebenzi, ingakumbi kwiindawo ezifumileyo/ezinobuthi.
• Ukuhlolwa kweTywina:Yenza uvavanyo lokuvuza rhoqo (umz., rhoqo ngekota). Kwimigca enoxinzelelo oluphezulu, faka amanzi anesepha kwiindawo zokuvala; amaqamza abonisa ukuvuza.

Ukucoca kunye nokuthambisa

• Ukucoca Umzimba:Sula umphandle rhoqo ngamanzi okanye ngesicoci esingathathi cala ukuze ususe uthuli/ioyile kwaye uthintele ukuqokelelana kwezinto ezirhabaxa.
• Ukuthambisa ngesiqu:Thambisa imisonto yesiqu rhoqo emva kweenyanga ezintandathu nge-lubricant efanelekileyo (umz., i-graphite grease, i-valve lubricant ekhethekileyo) ukuze unciphise ukuguguleka kwemisonto kwaye uqinisekise ukuba isebenza kakuhle. Qinisekisa ukuba i-lubricant iyahambelana ne-media ukuze uphephe ungcoliseko.

Ukutshintshwa kweCandelo kunye nokulungiswa

• Ukutshintshwa kweTywina:Ukuba umphezulu wokuvala idiski okanye isihlalo udlakadlaka okanye uyavuza, qhaqha ivalvu uze utshintshe izitywini (isangqa sediski, i-gasket yesihlalo). Emva kokutshintsha, phinda uvale iindawo zokuvala ukuze ziqhagamshelane ngokuqinileyo.
• Ukulungiswa/Ukutshintshwa kweStem:Ukuba isiqu sibolile okanye imisonto yonakele, yisuse okanye uyitshintshe isiqu ukuze uphephe ukungaphumeleli kokusebenza.
• Ukugcinwa kwe-Actuator:Kwiivalvu zomoya, jonga rhoqo imigca yomoya ukuze ubone ukuvuza kunye nokusebenza kwe-actuator. Kwiivalvu zombane, hlola iingcingo zolawulo kunye neemoto ukuze uthintele ukungasebenzi kakuhle ngenxa yeengxaki zokuqhuba.

Ukugcinwa Kwexesha Elide

• Ukuba ivalvu yeglobe ayisebenzi ixesha elide (umz., ngaphezulu kweenyanga ezi-3), vala iivalvu zokuzihlukanisa ezisezantsi neziphezulu, khupha i-media kwipayipi, kwaye ufake unyango lokulwa nomhlwa (umz., ioyile yokulwa nomhlwa) emzimbeni wangaphakathi nakwindawo yokutywina. Hlola imeko yevalvu rhoqo.

Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo)

Nazi iimpendulo zeminye yemibuzo eqhelekileyo malunga neevalvu zeglobe.

Yintoni uphawu lwe-P&ID lwevalvu yehlabathi?

Uphawu oluqhelekileyo lwePiping and Instrumentation Diagram (P&ID) lwevalvu yeglobhu luphawulwa ngoonxantathu ababini abajonge omnye komnye, abaqhagamshelwe ngumgca omele indlela yokuhambahamba emzimbeni wevalvu. Olu phawu lubonisa ngokubonakalayo umsebenzi wevalvu yeglobhu wokudala i-orifice ethintelayo ukulawula ukuhamba.

Ngaba ivalvu yeglobe ineFlow Directional?

Ewe, iivalvu zeGlobe azikho kwicala elinye kuphela, ngoko ke zikhoIsikhokelo Sokuhamba KomsingaUyilo lwangaphakathi lwediski kunye nesihlalo lwenzelwe ukuvala kakuhle kwicala elinye kuphela. Umzimba wevalvu uhlala uphawulwe ngotolo olubonisa icala elifanelekileyo lokuhamba. Ukufakela ivalvu kwicala elichaziweyo lokuhamba kuya kuyithintela ekuvalekeni kakuhle kwaye kunokukhokelela ekugugeni nasekuvuzeni ngokukhawuleza.

Ngaba iivalvu zeglobe zingasetyenziselwa iinkqubo zomphunga woxinzelelo oluphezulu olushushu kakhulu?

Ngokuqinisekileyo. Iivalvu zeglobe ziyindlela entle kakhulu yokusetyenziswa kobushushu obuphezulu kunye noxinzelelo oluphezulu, kuquka neenkqubo zomphunga. Uyilo lwazo olunyanzelisiweyo luqinisekisa ukuvalwa okuqinileyo naphantsi kweemeko ezinzima. Izixhobo ezikhethekileyo ezifana neChrom-Moly steel (WC9) kunye ne-hardened trim zihlala zisetyenziswa kwiivalvu zeglobe ezisebenza kakuhle ukumelana noxinzelelo lobushushu kunye nolwe-mechanical lwenkonzo yomphunga.

Ingaba ivalvu yehlabathi yivalvu evaliweyo?

Ewe, ivalvu yeglobhu luhlobo lwevalvu yokuvala. Igama elithi "ivalvu yokuvala" luluhlu olusebenzayo lwalo naliphi na ivalvu eyenzelwe ukuqala okanye ukumisa ukuhamba kolwelo. Ezinye iivalvu zokuvala eziqhelekileyo ziquka iivalvu zesango, iivalvu zebhola, kunye neevalvu zebhabhathane. Nangona zonke ezi zinokumisa ukuhamba, ivalvu yeglobhu idla ngokukhethwa xa kufuneka umxube wokutywina okuthembekileyo kunye nolawulo lokuhamba.

Ngaba ivalvu yehlabathi ingasetyenziswa njengevalvu yokulawula?

Ivalvu yeglobe eqhelekileyo ingasetyenziselwa ukuthontelana okungqongqo kwiindawo apho ulawulo oluchanekileyo lungabalulekanga. Nangona kunjalo, kulawulo lokuhamba oluchanekileyo noluphindaphindwayo, kusetyenziswa ivalvu yokulawula iglobe ezinikeleyo. Umahluko ophambili ukwindlela yoyilo lwediski: iivalvu zokulawula zineplagi ebhityiweyo okanye idiski ye-V-port eyenziwe ngokukodwa (ngokungafaniyo nediski ethe tyaba) kunye nekheyiji eyilwe ngokukodwa, evumela iimpawu zokuhamba ezichanekileyo.