Yintoni iBellows Sealed Globe Valve: Uyilo, iiApplications.

A I-Bellows etywiniweyo yeGlobe Valveluhlobo lwevalvu yeglobe esebenzisa i-metal bellows njengesixhobo sayo esiphambili sokutywina. Icandelo layo eliphambili yi-metal bellows. Ngokusebenzisa i-roll welding ezenzekelayo, i-bellows idala umqobo wesinyithi ongavaliyo phakathi kwe-fluid medium kunye nomoya, ukuqinisekisa ukuba akukho kuvuza kwi-valve stem. Olu yilo alugcini nje ngokuphucula ukusebenza kwe-valve kodwa lukwandisa ubomi bayo benkonzo.

Umgaqo oSebenzayo weBellows Sealed Globe Valve

Umgaqo wokusebenza weBellows Sealed Globe Valve ufana nowevalvu yeglobe eqhelekileyo. Isiqu sevalvu siqhutywa phezulu nasezantsi yi-handwheel okanye i-actuator, ethi yona ishukumise idiski yevalvu (okanye iplagi) ukuze ivule okanye ivale ivalvu. Xa idiski isiya phezulu, ulwelo lunokugeleza ngevalvu; xa idiski isiya ezantsi, ivala ngokuqinileyo kwisihlalo sevalvu, ivale ukuhamba kolwelo. I-bellows idlala indima ebalulekileyo yokuvala kule nkqubo, iqinisekisa ukusebenza kakuhle kokuvala phantsi kwazo zonke iimeko zokusebenza.

Umgaqo wokusebenza ungahlulwahlulwa ube ngamanqanaba amathathu aphambili:

1. Inkqubo Yokuvula:Xa i-actuator isebenza, iqhuba i-push-rod, nto leyo ebangela ukuba ii-bellows zicinezele okanye zande (zitshintshe). Kwangaxeshanye, oku kuqhuba ilungu lokuvala (idiski/iplagi). Ngeli nqanaba, uxinzelelo oluphakathi olusebenza kwi-inner cavity ye-bellows ludala imeko yokuzilinganisela.

2. Inkqubo yokuvala:Ukusebenza ngasemva kuseta kwakhona ilungu lokuvala. Ukuxhomekeka kumandla okubuyisela amandla e-elastic eentsimbi kunye noxinzelelo oluphakathi kuqinisekisa ukuqina okupheleleyo.

3. Impumelelo yokutywina:Uyilo olulodwa lokutywina oluvela kwisinyithi ukuya kwisinyithi alufikeleli kwimigangatho yokuvuza (i-ANSI/FCI 70-2 Class V).

Izinto eziphambili zeBellows Sealed Globe Valve

I-Bellows Sealed Valve yivalvu yokulawula eyakhiwe ngokukodwa, equlathe ikakhulu ezi zinto zilandelayo:

1. Iindawo eziphambili zoLwakhiwo:

• Umzimba weValve:Ngokwesiqhelo zenziwe ngentsimbi engatyiwayo okanye ngentsimbi yekhabhoni.

• Ibhonethi:Iqhagamshelwe kumzimba wevalvu ngeeflanges okanye imisonto.

• Indibano yokutywina:Ibandakanya ibhokisi yokuzalisa kunye neegasket zokutywina.

2. Izinto eziSebenzayo eziPhambili:

• IiBellows:Yenziwe ngokuhlanganisa iileya ezininzi zeesilinda zesinyithi ezinodonga oluncinci.

• Indawo yoQhagamshelo lweValve Stem kunye neActuator.

• Ilungu Lokuvala (Idiski/Iplagi).

Iimpawu zesakhiwo seBellows Sealed Globe Valve

Uyilo lwesakhiwo seBellows Sealed Globe Valve luneempawu ezilandelayo ezikhethekileyo:

1. Uyilo lokutywina kabini:

Iquka isakhiwo esinezitywino ezimbini esiquka i-bellows kunye ne-stem packing. Nokuba i-bellows ayiphumeleli, i-stem packing ithintela ukuvuza, iqinisekisa ukuthembeka kokutywina.

2. Ukumelana nokugqwala:

Izifutho zihlala zenziwe ngentsimbi engagqwaliyo, zibonelela ngokumelana nokugqwala okufanelekileyo kwiindidi ezahlukeneyo zemidiya.

3. Uyilo lobomi obude:

Ii-bellows ezenziwe nge-hydraulic zinobomi obude bokudinwa, ziyakwazi ukumelana nokusebenza rhoqo kokuvula nokuvala.

4. Ukukhuselwa kwesiqu:

Isiphelo esisezantsi se-bellows sidityaniswe kwisiqu se-valve, sikhusela ekukhukulisekeni yinkqubo yolwelo kwaye sandisa ubomi benkonzo yesiqu.

5. Isihlalo Esiqinileyo: 

Imiphezulu yokutywina idityaniswe nge-alloy eqinileyo esekwe kwi-cobalt (Co-based), ebonelela ngokumelana nokuguguleka okugqwesileyo, ukumelana nokugqwala, kunye neempawu zokulwa nokungqubana, nto leyo ebangela ubomi obude benkonzo.

Iingenelo zobugcisa

•Ukusebenza kokuvuza okungekho nto:

Izikhonkwane zesinyithi ziyayisusa ngokupheleleyo i-stem break, nto leyo eyenza ukuba ilungele ukusetyenziswa kwezinto ezinobuthi, ezitshayo, okanye ezicocekileyo kakhulu.

•Ukugqwala kunye nokumelana nokuguguleka:

Isiqu sevalvu siyacinywa kwaye siyafuthwa kunye ne-surface nitriding. Iindawo zokuhlala zigqunywe nge-alloys eqinileyo (umz., i-Co-based), exhathisa ulwelo olubolayo kunye nokukhukuliseka kwamasuntswana.

•Ukufaneleka Kwiimeko Ezinzima:

Amaqondo obushushu aqala kwi -40°C ukuya kwi 425°C, afaneleke ngakumbi kwiinkqubo zeoyile ezishushu kakhulu (uxinzelelo oluphantsi, iimeko zobushushu obuphezulu).

•Ukugcinwa okulula:

Uyilo lwe-bellows lunciphisa isidingo sokutshintshwa kokupakisha, nto leyo enciphisa iindleko zokugcinwa kwexesha elide.

Umahluko Phakathi kweeBellows Sealed Globe Valves kunye neeStandard Globe Valves

1. Uyilo olwahlukileyo kunye noQinisekiso lweTywina ezimbini

Ukwahluka kweBellows Sealed Globe Valve kukwindlela yayo yokuyila engavuzisi manzi. Idume ngokukwazi kwayo ukungavuzi manzi kunye nokuqinisekiswa kokutywinwa kabini, iqinisekisa ukhuseleko lokutywinwa kwesiqu. Olu yilo lwakha umqobo wesinyithi oqinileyo phakathi kwe-fluid medium kunye nomoya nge-automatic roll welding, ukuqinisekisa ukuba akukho kuvuza. Ibonisa ukugqwesa okukhulu xa kuthelekiswa neevalvu zeglobe zemveli. Ukuba ii-bellows ziyasilela, ukupakisha kwesiqu kusebenza njengesitywina esixhasayo, kugcina kungekho kuvuza. Ulwakhiwo lwayo oluqinileyo noluhlala ixesha elide lwe-bellows seal aluqinisekisi kuphela ukusebenza kokutywinwa kwesiqu kodwa lukwabonelela ngokusebenza okungenakugcinwa.

2. Ulwakhiwo kunye nokumelana nokunxitywa

I-Bellows Sealed Globe Valve inesakhiwo esinengqondo esingenalo ulwelo, enciphisa ukusetyenziswa kwamandla. Le valve inika isakhiwo esinengqondo, ukuvalwa okuthembekileyo, ukusebenza okugqwesileyo, kunye nenkangeleko entle ngobuhle. Ukungabikho kokulahleka kolwelo kunciphisa inkunkuma yamandla kwaye kuphucula ukhuseleko lwezixhobo zezityalo. Iindawo zayo zokuvala zisebenzisa i-Co-based hard alloy overlay welding, ibonelela ngokumelana nokuguguleka okugqwesileyo, ukumelana nokugqwala, kunye neempawu zokulwa nokungqubana, kunciphisa iimfuno kunye neendleko zokulungisa. Oku kwandisa ubomi benkonzo, kunciphisa amaxesha okulungisa, kwaye kunciphisa iindleko zokusebenza.

3. Ukumelana nokugqwala xa kuthelekiswa neeValve zeGlobe ezisemgangathweni

Isiqu sevalvu yeBellows Sealed Globe Valve siphantsi kokucima kunye nokuthomalalisa kunye ne-nitriding yomphezulu, nto leyo eyenza ukuba ibe nokugqwala okugqwesileyo kunye nokumelana nokungqubana. Ngokwahlukileyo koko, ivalvu yeglobe evaliweyo eqhelekileyo (oko kukuthi, ivalvu yeglobe eqhelekileyo) nayo ineempawu ezithile. Ithandwa ngenxa yeenzuzo ezifana nokungqubana okuphantsi ngexesha lokuvula/ukuvala, ukuqina, kunye nokulula kokwenziwa nokulungiswa. Nangona kunjalo, ikwanazo nezinye iingxaki, ezifana nokuxhathisa okuphezulu kolwelo kunye nokungoneliseki kokutywinwa kwexesha elide. Ngokubanzi, ivalvu yeglobe eqhelekileyo ihlala iluhlobo lwevalvu esetyenziswa kakhulu kwaye ithembeke ngokubanzi. Nangona kunjalo, iivalvu zeglobe eziqhelekileyo zineengxaki ezifana nokuxhathisa okuphezulu kolwelo kunye nokusebenza kakubi kokutywinwa kwexesha elide, okwenza zingabi ngcono kuneBellows Sealed Globe Valves.

4. Iingenelo zeSicelo kunye nokuThelekiswa

Kwimisebenzi yemizi-mveliso, iingxaki zokuvuza zangaphandle ezibangelwa kukwaluphala kwesiqu kwiivalvu zeglobe eziqhelekileyo zixhaphakile. Iivalvu zeBellows Sealed Globe zibalaseleyo kwimisebenzi yemizi-mveliso, ziphepha iingxaki zokuvuza ezinokubakho kwivalvu zeglobe eziqhelekileyo. Oku kuvuza kunokubandakanya ubushushu obuphezulu, obunobuthi kakhulu, obunokutsha, obuqhumayo, okanye obune-radioactive, okubangela kungekuphela nje ungcoliseko olubi lokusingqongileyo kodwa kunye nokwenzakala okukhulu komntu kunye nokulahleka kwepropathi. Uyilo lweBellows Sealed Globe Valve luyisombulula ngokupheleleyo le ngxaki. Ulwakhiwo lwayo lwe-bellows seal lwenza ivalvu ingabi nalondolozo, iphucula kakhulu ukusebenza kakuhle kwamandla, iphucula ukhuseleko lwezixhobo zemveliso, kwaye inciphisa iindleko zokulungisa kunye nesidingo sokugcinwa rhoqo. Ngenxa yoko, ibonelela ngendawo yokusebenza ecocekileyo kwaye inciphisa iindleko zokugcinwa, inikezela ngesisombululo esicocekileyo nesikhuselekileyo.

Iintsimi zesicelo seBellows Sealed Globe Valves

Ngenxa yokusebenza kwayo okugqwesileyo kokutywina kunye nokuthembeka, iiBellows Sealed Globe Valves zisetyenziswa kakhulu kumashishini amaninzi kuquka ipetroliyam, iikhemikhali, amayeza, izichumisi, kunye nokuveliswa kombane, ingakumbi kwizicelo ezifuna ukuthembeka okuphezulu kokutywina.

1. Ishishini leeKhemikhali

Ngaphakathi kushishino lweekhemikhali, iiBellows Sealed Globe Valves zilawula ukuhamba kweendaba ezibolayo. Umzekelo, isityalo seekhemikhali sisebenzisa ezi valves ukuhambisa igesi ye-chlorine. Ivalve isebenzisa intsimbi ye-LCB engangenisi umhlwa kubushushu obuphantsi emzimbeni, kunye neebellows ezenziwe ngee-Hastelloy C-276 kunye nee-PTFE V-ring seals, ezinesakhiwo esine-dual-seal esithintela ngokufanelekileyo ukuvuza kwe-chlorine.

2. Ishishini leMithi

Ishishini lamayeza libeka iimfuno eziphezulu kakhulu zokucoceka kunye nokuvala iivalvu. Uyilo lwe-dual-seal kunye nokumelana nokugqwala kweeBellows Sealed Globe Valves kuzenza zibe lukhetho olufanelekileyo. Umzekelo, inkampani yamayeza izisebenzisa kwiinkqubo zeoyile ezishushu. Ezi valves zinoyilo olucwangcisiweyo olucwangcisiweyo olune-low pressure down. Uyilo olucwangcisiweyo luvumela inkqubo yokuzikhupha ngokwayo, enika ukusebenza okungcono kunezinye iintlobo zeevalvu zeglobe.

3. Ishishini lamandla

Kwishishini lombane, iiBellows Sealed Globe Valves zisetyenziswa kwimibhobho yomphunga nakwiinkqubo zebhoyila ukuqinisekisa ukudluliselwa komphunga ngokufanelekileyo kunye nolawulo olukhuselekileyo. Umzekelo, inkampani yokuvelisa umbane iziqesha kwimigca yomphunga. Ezi valves zithintela ngokufanelekileyo ukuvuza komphunga, ziphucula ukusetyenziswa kwamandla ngokufanelekileyo.

4. Ishishini lokutya neziselo

Iimfuneko ezingqongqo zococeko nokhuseleko zichaza ishishini lokutya neziselo. Ukusebenza kokutywina kunye nokumelana nokugqwala kweeBellows Sealed Globe Valves kwenza ukuba zikwazi ukuhlangabezana nezi mfuno zithile. Umzekelo, ifektri yebhiya izisebenzisela ukulawula umphunga ngexesha lenkqubo yemveliso, ukuqinisekisa imeko-bume yemveliso ecocekileyo nekhuselekileyo.

Ukufakwa kunye nokugcinwa kweeBellows Sealed Globe Valves

1. Amanyathelo okufaka

• Isikhokelo sokufakelwa:Faka ivalvu ngokwendlela oluhamba ngayo ulwelo, uqinisekise ukuba ukuhamba kolwelo kuhamba ukusuka ezantsi ukuya phezulu ukuze kuncitshiswe ukumelana nolwelo ngaphakathi kwevalvu.

• Indlela yoQhagamshelo:Khetha indlela efanelekileyo yoqhagamshelo (umz., efakwe i-flange okanye edibeneyo) ngokusekelwe kwiimeko zokusebenza zokwenyani.

• Iimfuno zeNdalo:Indawo yokufakela kufuneka iphephe amaqondo obushushu aphezulu, ukufuma, kunye neendawo ezinobungozi ukuze kwandiswe ubomi benkonzo yevalvu.

2. Iingcebiso zoLondolozo

•Uhlolo oluQhelekileyo:Hlola rhoqo ukusebenza kokutywina kwe-bellows ukuqinisekisa ukuba akukho kuvuza.

•Ukucoca kunye nokuthambisa:Coca umphandle wevalvu rhoqo kwaye uthambise isiqu sevalvu ukuze uthintele ukugqwala nokunamathela.

•Ulawulo lweNgxakeko:Ukuba kufunyenwe ukuvuza kwe-bellows, sebenzisa i-emergency gland ukuze uyivale okwethutyana ukuze uthintele ukuvuza okungakumbi.

3. Amanqaku Aphambili Okugcinwa

• Ukuthintela Ukungaphumeleli:Ukuqhekeka kokudinwa kweBellows yindlela yokuqala yokusilela; kufuneka uhlolwe rhoqo. Ezinye iindlela zoyilo lweevalvu zineekhatriji zebellows ezinokutshintshwa ukuze kube lula ukuzilungisa.

• Ukufaneleka kwemeko:Kwiindawo ezinobushushu obuphezulu (umz., >200°C), beka phambili iiBellows zeBellows Sealed Globe Valves zentsimbi engagqwaliyo ukuze kuthintelwe ukubola kwepakeji.

Isiphelo

Iivalvu zeBellows Sealed Globe, ngokusebenzisa ubuchwepheshe obutsha bokuvala, zisombulula iingxaki zokuvuza kwangaphandle kweevalvu zemveli. Zibalasele ekusebenzeni kokuvala, ukhuseleko, kunye nokuqina, nto leyo ezenza zibe luhlobo lweevalvu ezikhethwa rhoqo kwiindawo ezifuna kakhulu ezifana nokucubungula iikhemikhali kunye namandla.