Ukufakwa kwamavalvu esango, ama-globe valves namasheke valve

I-valve yesango, eyaziwa nangokuthi i-valve yesango, i-valve esebenzisa isango ukulawula ukuvulwa nokuvala. Ilungisa ukugeleza kwamapayipi futhi ivule futhi ivale amapayipi ngokushintsha indawo enqamula amapayipi. Amavalvu esango asetshenziswa kakhulu kumapayipi anemidiya ewuketshezi evuleke ngokugcwele noma evalwe ngokugcwele. Ngokuvamile asikho isidingo sokuqondisa ukufakwa kwe-valve yesango, kodwa ayikwazi ukufakwa sibheke phansi.

Ai-valve yomhlabaiyi-valve esebenzisa i-valve disc ukulawula ukuvulwa nokuvala. Ngokushintsha igebe phakathi kwediski ye-valve nesihlalo se-valve, okungukuthi, ukushintsha usayizi we-cross-section yesiteshi, ukugeleza okuphakathi noma umzila ophakathi kuyanqanyulwa. Lapho ufaka i-valve yokumisa, ukunakwa kufanele kukhokhwe ekuqondeni kokugeleza koketshezi.
Umgomo okumelwe ulandelwe lapho kufakwa i-valve yokumisa ukuthi uketshezi olusepayipini ludlula embotsheni ye-valve ukusuka phansi kuye phezulu, okuvame ukubizwa ngokuthi “okuphansi nokuphuma phezulu”, futhi ukufakwa kuhlehla akuvunyelwe.

Hlola i-valve, eyaziwa nangokuthi i-valve yokuhlola kanye ne-valve yendlela eyodwa, i-valve evula futhi ivale ngokuzenzakalelayo ngaphansi komehluko wengcindezi phakathi kwengaphambili nangemuva kwe-valve. Umsebenzi wawo ukuvumela i-medium ukuthi igeleze ibheke endaweni eyodwa kuphela futhi ivimbele i-medium ukuthi ingagelezi ibuyele ngakolunye uhlangothi. Ngokwezakhiwo ezahlukene, ama-valve okuhlola ahlanganisa ama-valve okuhlola i-lift, swing kanye ne-butterfly clamp. Ama-valve okuhlola okuphakamisa ahlukaniswe abe izinhlobo ezivundlile nezime mpo. Uma ufaka i-valve yokuhlola, kufanele futhi unake isiqondiso sokugeleza kwe-medium futhi ungayifaki emuva.

Ukufakwa kwe-valve yokunciphisa ingcindezi

I-valve yokunciphisa ukucindezela i-valve enciphisa ingcindezi yokungena ekucindezelweni kwe-outlet edingekayo ngokulungiswa futhi igcine ngokuzenzakalelayo ingcindezi yokuphuma ezinzile ngokuthembela emandleni we-medium ngokwayo.

Ngokombono we-fluid mechanics, i-valve yokunciphisa ingcindezi iyisici esidonsayo esingashintsha ukumelana nendawo. Okungukuthi, ngokushintsha indawo ye-throttling, izinga lokugeleza namandla e-kinetic oketshezi liyashintshwa, ngaleyo ndlela likhiqize ukulahlekelwa kwengcindezi ehlukene, ngaleyo ndlela kufezeke injongo yokunciphisa ingcindezi. Khona-ke, ngokuncika ekulungisweni kwesistimu yokulawula nokulawula, amandla entwasahlobo asetshenziselwa ukulinganisa ukuguquguquka kokucindezela ngemuva kwe-valve, ukuze ingcindezi engemuva kwe-valve ihlale ingashintshi phakathi kwebanga elithile lephutha.

Ukufakwa kwe-valve yokunciphisa ingcindezi

1. Iqembu lamavalvu okwehlisa ingcindezi efakwe mpo ngokuvamile lifakwa odongeni endaweni ephakeme efanele ukusuka phansi; i-valve yokunciphisa ingcindezi efakwe ngokuvundlile ngokuvamile ifakwe endaweni yokusebenza ehlala njalo.

2. Sebenzisa insimbi emise okwensimbi ukufaka odongeni ngaphandle kwamavalvu okulawula amabili (avame ukusetshenziselwa amavalvu okumisa) ukuze wakhe ubakaki. Ipayipi le-bypass nalo linamathele kubakaki futhi lilinganiselwe.

3. Ivalvu yokunciphisa ingcindezi kufanele ifakwe iqonde epayipini elivundlile futhi akumele itsheke. Umcibisholo osemzimbeni we-valve kufanele ukhombe isiqondiso sokugeleza okuphakathi futhi awukwazi ukufakwa emuva.

4. Ama-valve okumisa kanye nama-gauge okucindezela okuphezulu nokuphansi kufanele afakwe ezinhlangothini zombili ukuze kugcinwe izinguquko zokucindezela ngaphambi nangemva kwe-valve. Ububanzi bepayipi ngemva kwevalve yokunciphisa ingcindezi kufanele bube ngu-2#-3# mkhulu kunobubanzi bepayipi lokungena phambi kwevalvu, futhi kufakwe ipayipi lokudlula ukuze kube lula ukulungiswa.

5. Ipayipi elilinganisa ingcindezi yevalvu yokunciphisa umfutho we-diaphragm kufanele ixhunywe epayipini lomfutho ophansi. Amapayipi anomfutho ophansi kufanele afakwe amavalvu okuphepha ukuze kuqinisekiswe ukusebenza ngokuphephile kohlelo.

6. Uma isetshenziselwa ukucindezelwa kwesitimu, kufanele kufakwe ipayipi lokudonsa amanzi. Kuzinhlelo zamapayipi anezidingo eziphakeme zokuhlanzeka, isisefo kufanele sifakwe phambi kwevalvu yokunciphisa ukucindezela.

7. Ngemuva kokuthi iqembu le-valve lokunciphisa ingcindezi lifakiwe, i-valve yokunciphisa ingcindezi kanye ne-valve yokuphepha kufanele ihlolwe ingcindezi, ihlulwe futhi ilungiswe ngokuvumelana nezidingo zokuklama, futhi ukulungiswa kufanele kumakwe.

8. Lapho ushayela i-valve yokunciphisa ukucindezela, vala i-valve yokunciphisa ukucindezela bese uvula i-valve yokuwasha ukuze iwashise.

Ukufakwa kogibe

Umsebenzi oyisisekelo we-steam trap ukukhipha amanzi ajiyilethi, umoya kanye negesi ye-carbon dioxide ohlelweni lwesitimu ngokushesha ngangokunokwenzeka; ngesikhathi esifanayo, ingavimbela ngokuzenzakalelayo ukuvuza kwe-steam ngezinga elikhulu kakhulu. Kunezinhlobo eziningi zezicupho, ngayinye inamakhono ahlukene.

Ngokwemigomo yokusebenza ehlukene yezicupho ze-steam, zingahlukaniswa zibe izinhlobo ezintathu ezilandelayo:

Imishini: Isebenza ngokuya ngezinguquko ezingeni le-condensate ogibeni, okuhlanganisa:

Uhlobo lokuntanta: I-float iyindilinga evaliwe engenalutho.

Uhlobo lokuntanta oluvula phezulu: Intanta inomumo wombhobho futhi ivuleka ibheke phezulu.

Ukuvula uhlobo lokuntanta olubheke phansi: I-float imise okomgqomo futhi imbobo ibheke phansi.

Uhlobo lwe-Thermostatic: lusebenza ngokuya ngokushintsha kwezinga lokushisa eliwuketshezi, kufaka phakathi:

Ishidi le-Bimetallic: I-elementi ebucayi iyishidi le-bimetallic.

Uhlobo lomfutho we-vapor: Into ebucayi iyisivunguvungu noma i-cartridge, egcwele uketshezi olushintshashintshayo.

Uhlobo lwe-Thermodynamic: Izenzo ezisekelwe ekushintsheni kwezakhiwo ze-thermodynamic zoketshezi.

Uhlobo lwe-Disc: Ngenxa yamazinga ahlukene okugeleza oketshezi kanye negesi ngaphansi kwengcindezi efanayo, izingcindezi eziguquguqukayo nezimile ezihlukene zenziwa ukuze kuqhutshwe i-valve yediski ukuze ihambe.

Uhlobo lwe-Pulse: Uma i-condensate yamazinga okushisa ahlukene idlula ochungechungeni lwezigxobo ezimbili ze-throttle orifice plate, izingcindezi ezihlukene ziyakhiwa phakathi kwezigxobo ezimbili zamapuleti e-throttle orifice, okushayela idiski ye-valve ukuthi inyakaze.

Ukufakwa kogibe

1. Ama-valve okumisa (ama-stop valves) kufanele afakwe ngaphambili nangemuva, futhi kufanele kufakwe isisefo phakathi kwesicupho kanye ne-valve yokumisa yangaphambili ukuze kuvinjelwe ukungcola emanzini e-condensate ekuvimbeleni isicupho.

2. Ipayipi lokuhlola kufanele lifakwe phakathi kwesicupho kanye nevalvu yokumisa yangemuva ukuze kuhlolwe ukuthi isicupho sisebenza kahle yini. Uma inani elikhulu le-steam liphuma lapho uvula ithubhu yokuhlola, isicupho sonakalisiwe futhi sidinga ukulungiswa.

3. Inhloso yokumisa ipayipi ye-bypass ukukhipha inani elikhulu lamanzi ahlanganisiwe ngesikhathi sokuqala nokunciphisa umthwalo wokukhipha amanzi ogibe.

4. Uma i-valve yokukhipha amanzi isetshenziselwa ukususa i-condensate emshinini wokushisa, kufanele ifakwe engxenyeni engezansi yemishini yokushisa ukuze ipayipi lamanzi le-condensate libuyele ngokuqondile ku-valve yokukhipha amanzi ukuze kuvinjelwe ukuqoqwa kwamanzi emishini yokushisa.

5. Indawo yokufaka kufanele ibe seduze nendawo yokukhipha amanzi ngangokunokwenzeka. Uma ibanga likude kakhulu, umoya noma isitimu singanqwabelana epayipini elide, elincanyana eliphambi kwesicupho.

6. Uma ipayipi eliyisitimu elivundlile lilide kakhulu, kufanele kucatshangelwe izindaba zokudonsa amanzi.