Amavalvu e-Butterfly asetshenziselwa ukuqala, ukumisa noma ukulawula ukugeleza koketshezi noma amagesi ngamapayipi. Athola igama lawo kudiski efana nephiko ejikeleza ngaphakathi komzimba wevalvu, efana nokunyakaza kwevemvane. Phakathi kwezinhlobo ezahlukene zamavalvu e-butterfly, amavalvu e-butterfly asebenza kahle kakhulu (i-HPBV) kanye namavalvu e-butterfly aqinile yizona zakhiwo ezimbili ezivame kakhulu. Lokhu kuqhathanisa kuzohlukanisa umehluko phakathi kwalawa amabili kusukela ezilinganisweni eziningi ukuze kucaciswe izindima zawo ezimbonini kanye nasemisebenzini kamasipala.
| Isici | I-Concentric Butterfly Valve | I-High-Performance Butterfly Valve |
| Umklamo | Isiqu esiphakathi nediski | Isiqu esingaphandle esinesihlalo sensimbi |
| Indlela Yokuvala | Isihlalo esithambile se-elastomeric | Isihlalo se-RPTFE |
| Isilinganiso Sokucindezela | Kufika ku-250 PSI | Kufika ku-600 PSI |
| Isilinganiso Sokushisa | Kufika ku-180°C (356°F) | Kufika ku-260°C (536°F) |
| Ukuguguleka Nokudabula | Kuphezulu ngenxa yokuthintana kwesihlalo | Kuphansi ngenxa yomklamo we-offset |
| Ukufaneleka Kwesicelo | Uketshezi olunengcindezi ephansi | Uketshezi olunomfutho ophakathi nendawo, olushisa kakhulu |
| Izindleko | Ngaphansi | Okuphakeme |
1. Ukuklama Nokwakha
Umehluko oyinhloko phakathi kwama-valve e-butterfly aqinile nama-valve e-butterfly asebenza kahle usekwakhekeni kwawo, ikakhulukazi indawo yesiqu se-valve kanye ne-valve disc uma kuqhathaniswa nomzimba we-valve kanye nezinto ezisetshenziswayo.
1.1 Amavalvu Ovemvane Oqinile
Umklamo oqondile waziwa ngokuthi ivalvu ethi "zero offset" noma "resilient seat", eqondisa isiqu sevalvu kanye nediski yevalvu ngqo enkabeni yomzimba wevalvu kanye nebhoda lepayipi. Lokhu kulungiswa kwesikhungo akunasiphambeko.
1.1.1 Ukunyakaza Kwediski
Idiski ijikeleza ngo-90° izungeze i-axis yesiqu se-valve, futhi isuka ekuvulekeni ngokuphelele (ngokuhambisana nepayipi) iye ekuvalekeni ngokuphelele (ngokuqondile nepayipi) kulo lonke ibanga layo lokunyakaza.
1.1.2 Indlela Yokuvala
Ukuvalwa kufezwa ngokungena kokuphazamiseka phakathi komphetho wediski yevalvu kanye nesihlalo sevalvu esiqinile esifana nerabha (njenge-EPDM, i-acrylic noma i-fluororubber) esimboze ubuso bangaphakathi bomzimba wevalvu.
1.1.3 Izinto Zokusebenza
Umzimba wevalvu uvame ukwenziwa ngezinto eziqinile nezimelana nokugqwala njengensimbi ephonswe ngensimbi, insimbi ethambile noma ngisho nensimbi engagqwali ukuze kusetshenziswe kalula, ngoba isihlalo sevalvu yerabha sivimbela ukuthintana koketshezi nomzimba wevalvu.
Idiski ingaba yinsimbi engagqwali, ithusi le-aluminium, insimbi ehlanganisiwe, noma ihlanganiswe ngokuphelele ngensimbi, kuye ngokuthi uketshezi lugqwala kangakanani.
1.2 Amavalvu ebhabhathane asebenza kahle kakhulu
Ngokuvamile umklamo we-double-offset one-offset ezimbili ezibalulekile:
Isiqu sitholakala ngemuva kwediski kunokuba sidlule phakathi kwediski, futhi
I-disc kanye ne-stem assembly kususelwe ku-centerline ye-pipe bore.
Ezinye izinguqulo ezithuthukisiwe zifaka phakathi ama-offset amathathu, kodwa i-double offset ijwayelekile kumamodeli asebenza kahle kakhulu.
1.2.1 Ukunyakaza Kwediski
Ngenxa yokuphazamiseka, idiski ijikeleza ngendlela efana nekhamera, inciphisa ukuxhumana nesihlalo.
1.2.2 Indlela Yokuvala
Isihlalo senziwe ngezinto ezihlala isikhathi eside, njenge-Teflon eqinisiwe, ukuze imelane nokucindezeleka okuphezulu kanye namazinga okushisa. Ngokungafani nesihlalo serabha esise-valve egxilile, isivalo siqinile futhi asixhomekile kakhulu ekuguqukeni.
1.2.3 Izinto Ezisetshenziswayo
Umzimba kanye nediski kwenziwa ngezinsimbi eziqinile, njengensimbi engagqwali, insimbi yekhabhoni, noma ama-alloy, ukuze kumelwane nezimo ezinzima.
1.3 Isifinyezo: Imiphumela Yomklamo
Ubulula bevalvu egxilile buyenza ibe lula futhi ibe ncane, okwenza ibe yindawo ekahle yokufaka ngqo. Kodwa-ke, ukuthembela kwayo esihlalweni serabha esiguquguqukayo kunciphisa ukuguquguquka kwayo.
Umklamo we-offset kanye nezinto eziqinile zama-valve asebenza kahle kakhulu kuthuthukisa ukuqina kwawo kanye nokuzivumelanisa nezimo, kodwa ngenxa yobunzima kanye nesisindo esikhulayo.
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2. Amakhono Okusebenza
Ukusebenza kuyisici esiguquguqukayo kakhulu salezi valve futhi yiso abasebenzisi abasibheka kakhulu futhi abasikhathalelayo. Ngokukhethekile, sihlaziywa ngokwengcindezi, izinga lokushisa, umphumela wokuvala kanye nokuphila kwesevisi.
2.1 Amavalvu Ovemvane Oyindilinga
2.1.1 Izilinganiso Zokucindezela
Amavalvu e-butterfly aqinile ngokuvamile angamelana nokucindezeleka okufika ku-PN16, kodwa lokhu kuyahlukahluka kuye ngobukhulu kanye nezinto zokwakha. Ngaphezu kwalokhu kucindezela, isihlalo serabha singase siguge noma sihluleke.
2.1.2 Izilinganiso Zokushisa
Izinga lokushisa eliphakeme lingu-356°F (180°C), elinqunyelwe yimikhawulo yokushisa yesihlalo serabha noma se-PTFE. Izinga lokushisa eliphakeme lizokwehlisa ukusebenza kwe-elastomer futhi liphazamise ukuvalwa.
2.1.3 Ukusebenza kokuvala
Ingahlinzeka ngokuvalwa okuthembekile ezinhlelweni ezinomfutho ophansi, kodwa ukungqubuzana okuqhubekayo phakathi kwediski yevalvu nesihlalo sevalvu kuzobangela ukuguguleka, okuzonciphisa ukusebenza kahle.
2.1.4 Ukugoqa
Njengoba ama-valve e-butterfly efaneleka kakhulu ekuvulekeni nasekuvaleni ngokugcwele, uma esetshenziselwa ukulawula ukugeleza kwamanzi, ukugoba isikhathi eside kuzosheshisa ukuguguleka kwesihlalo se-valve, okwenza singabi neqiniso futhi singahlali isikhathi eside.
2.1.5 Ukuqina
Njengoba izihlalo zevalvu zinwebeka kakhulu, zenziwe ngensimbi noma ziqiniswe ziqinile kunenjoloba. Umklamo we-offset wandisa impilo yesevisi ngokunciphisa ukungqubuzana.
2.2 Ivalvu yebhabhathane esebenza kahle kakhulu
2.2.1 Isilinganiso sokucindezela
Ngenxa yesakhiwo sayo esiqinile kanye nomklamo we-offset onciphisa ukucindezeleka esihlalweni se-valve, ingamelana nokucindezeleka okufika ku-PN16.
2.2.2 Isilinganiso sokushisa
Njengoba isihlalo sevalvu sisebenzisa i-RPTFE, singasebenza kahle emazingeni okushisa afinyelela ku-536°F (280°C).
2.2.3 Ukusebenza kokuvala
Ngenxa yokulingana okunembile kwediski ye-offset valve kanye nesihlalo se-valve esiqinile, ukuvuza cishe ku-zero futhi ngokuvamile kuseduze nokuvalwa komoya. Lokhu kuyenza ifaneleke kakhulu ekusetshenzisweni okubalulekile.
2.2.4 Ukugoqa
Ukwakhiwa kanye nezinto ezisetshenziswa kuma-valve e-butterfly asebenza kahle kakhulu kuwenza akwazi ukulawula ngokunembile ukugeleza ngisho noma ecindezeleke kakhulu. Ukuxhumana kwesihlalo okuncishisiwe kunciphisa ukuguguleka futhi kugcina ubuqotho besivalo emijikelezweni eminingi.
2.2.5 Ukuqina
Njengoba ziqinile, izihlalo zensimbi noma eziqinisiwe zihlala isikhathi eside kunerabha. Umklamo we-offset wandisa impilo yesevisi ngokunciphisa ukungqubuzana.
2.3 Isifinyezo: Okuvelele Kokusebenza
Amavalvu aqinile afaneleka ezimweni eziphansi nezizinzile, kodwa ayahluleka uma kunengcindezi ephakathi nendawo kanye nephezulu.
Amavalvu asebenza kahle anikeza ukuthembeka okuphezulu kanye nokuphila kwesevisi ngezindleko zokuqala eziphakeme.
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3. Izicelo
Ukukhetha phakathi kwamavalvu e-butterfly aphakathi nendawo kanye namavalvu e-butterfly asebenza kahle kuncike ezidingweni ezithile zesistimu afakwe kuyo.
3.1 Amavalvu Ovemvane Oyindilinga
Ngezinhlelo zokucindezela/zokushisa eziphansi kuya kweziphakathi lapho izindleko nobulula kuyizinto eziza kuqala.
Ukusetshenziswa Okuvamile:
- Amanzi kanye namanzi angcolile: Imigwaqo yamanzi kamasipala, izinhlelo zokunisela kanye nezokukhuculula indle ziyazuza ngokwezomnotho wazo kanye nokuhlukaniswa koketshezi.
- Ukudla kanye Nemithi: Izihlalo zerabha zivimbela uketshezi olubucayi ekungcolisweni umzimba wevalvu.
- Ukunikezwa Kwegesi: Imigqa yegesi enomfutho ophansi iyisebenzisela ukulawula ukuvulwa/ukuvalwa.
- Ukuvikelwa Komlilo: Izinhlelo zokufafaza zisebenzisa ithuba lokusebenza kwazo okusheshayo nokuthembeka kwazo lapho zicindezeleke khona.
- Umusi Ophansi: Ukuze uthole umusi ofinyelela ku-250 PSI kanye no-350°F.
3.2 Amavalvu ebhabhathane asebenza kahle kakhulu
Ngezingcindezi eziphansi noma izinhlelo ezibalulekile ezidinga ukunemba nokuqina.
Ukusetshenziswa Okuvamile:
- Uwoyela negesi: Iphatha amakhemikhali aqinile, amakhemikhali kaphethroli, kanye nezimo zasogwini lolwandle ezinengcindezi ephezulu kanye noketshezi olubolayo.
- Ukukhiqizwa Kwamandla: Kuphatha umusi ocindezela kakhulu kanye namanzi okupholisa kuma-turbine nama-boiler.
- Ukucubungula Amakhemikhali: Kumelana noketshezi olubolayo futhi kugcina ukuvala okuqinile ezindaweni eziguquguqukayo.
- I-HVAC: Yezinhlelo ezinkulu ezidinga ukulawulwa kokugeleza okunembile.
- Ukwakha imikhumbi: Imelana nezimo zasolwandle kanye nokuphathwa koketshezi olunomfutho ophezulu.
3.3 Ukwehlukana Kwesicelo Nomehluko
Nakuba womabili ama-valve elawula ukugeleza, ama-valve aqinile abusa ezindaweni ezingabizi kakhulu nezingabizi kakhulu, kuyilapho ama-valve asebenza kahle kakhulu ekhethwa ezinqubweni zezimboni lapho ukwehluleka kungaba nemiphumela emibi kakhulu.
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4. Izinto Okucatshangwayo Ngokusebenza
Ngaphezu kokuklama nokusetshenziswa, izici ezisebenzayo njengokufakwa, ukulungiswa, kanye nokuhlanganiswa kokulingana kwesistimu nakho kudlala indima.
4.1 Ukufakwa
- I-Concentric: Ukufakwa okulula ngenxa yesisindo esilula kanye nokuhambisana okulula kwe-flange.
- Ukusebenza okuphezulu: Ukuqondanisa okunembile kuyadingeka ngenxa yomklamo we-offset, futhi isisindo sayo sidinga ukwesekwa okuqinile.
4.2 Ukulungiswa
- Okugxile: Ukulungisa kugxile ekushintsheni isihlalo senjoloba, okuyindlela yokulungisa esheshayo nengabizi kakhulu. Kodwa-ke, ukuguguleka njalo kungandisa isikhathi sokungasebenzi ezinhlelweni ezihamba ngesivinini esikhulu.
- Ukusebenza kahle: Ukulungiswa akuvamile ngenxa yesihlalo esiqinile, kodwa ukulungiswa (isib., ukufaka esikhundleni sesihlalo) kuyabiza kakhulu futhi kunobuchwepheshe, ngokuvamile kudinga abasebenzi abangochwepheshe bokulungisa abanamathuluzi akhethekile.
4.3 Ukwehla Kwengcindezi
- Ama-Concentric: Ama-disc aphakathi nendawo adala ukuxokozela okukhulu lapho evuliwe kancane, okunciphisa ukusebenza kahle kwezinhlelo zokusebenza zokugoqa.
- Ukusebenza Okuphezulu: Ama-disc e-offset athuthukisa izici zokugeleza, anciphisa i-cavitation kanye nokwehla kwengcindezi, ikakhulukazi ngesivinini esiphezulu.
4.4 Ukusebenza
Womabili ama-valve angasetshenziswa nama-actuator esandla, omoya, noma kagesi, kodwa ama-valve asebenza kahle kakhulu avame ukubhangqwa nezilawuli ezithuthukisiwe zokwenza okuzenzakalelayo okunembile ezindaweni zezimboni.
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5. Ukuhlaziywa Kwezindleko Nomjikelezo Wokuphila
5.1 Izindleko Zokuqala
Amavalvu aqinile ashibhile kakhulu ngoba kulula ukuwakha nokusebenzisa izinto ezincane. Lokhu akunjalo ngamavalvu e-butterfly asebenza kahle kakhulu.
5.2 Izindleko Zomjikelezo Wokuphila
Ama-valve asebenza kahle kakhulu ngokuvamile ayonga kakhulu ngokuhamba kwesikhathi ngoba awanakekelwa futhi awashintshwa njalo. Ezinhlelweni ezibalulekile, ukuthembeka kwawo kunganciphisa nezindleko zesikhathi sokungasebenzi.
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6. Isiphetho: Isifinyezo Sezinzuzo Nokungalungile
6.1 I-Concentric Butterfly Valve
6.1.1 Izinzuzo:
- Ukusebenza kahle kwezindleko: Izindleko zokukhiqiza eziphansi kanye nezinto zokwakha ziyenza ibe yinzuzo ebhajethi.
- Umklamo olula: Kulula ukufaka, ukusebenzisa, nokunakekela, ngezingxenye ezimbalwa ezihambayo.
- Ukuhlukaniswa Koketshezi: Izihlalo zerabha zivikela umzimba wevalvu, zivumela ukusetshenziswa kwezinto ezishibhile futhi zigcine ubumsulwa boketshezi.
- Ilula: Ilungele ukusetshenziswa lapho isisindo siyinkinga.
6.1.2 Okubi:
- Ibanga elilinganiselwe: Imikhawulo ephezulu ingu-250 PSI kanye no-356°F, okunciphisa ukusetshenziswa kwayo ezimweni ezinzima.
- Kungagugi: Ukungqubuzana kwesihlalo njalo kungaholela ekusebenzeni okuwohlokile, okudinga ukulungiswa njalo.
- Ukusebenza kabi kokugoqa okunamandla aphezulu: Kulahlekelwa ukunemba nokuvala ngaphansi kwengcindezi.
6.2 Amavalvu ebhabhathane asebenza kahle kakhulu
6.2.1 Izinzuzo:
- Amandla Aphezulu: Ingakwazi ukusingatha ukucindezela okuphakathi kuya kokuphezulu (kufika ku-600 PSI) kanye namazinga okushisa (kufika ku-536°F).
- Impilo Ende Yesevisi: Ukuncipha kokuguguleka kwesihlalo nezinto eziqinile kwandisa impilo yesevisi.
- Ukunemba: Ukugoqa nokuvala okuhle kakhulu ngisho nasezimweni ezinzima.
- Ukuguquguquka: Kufanelekela uketshezi oluhlukahlukene kanye nendawo ezungezile.
6.2.2 Okubi:
- Izindleko Eziphezulu: Izinto ezibizayo kanye nomklamo oyinkimbinkimbi kwandisa ukutshalwa kwezimali kusengaphambili.
- Ubunzima: Ukufakwa nokulungiswa kudinga ubuchwepheshe obengeziwe.
- Isisindo: Ukwakhiwa okunzima kungenza kube nzima ukufakelwa kabusha kwezinye izinhlelo.
Amavalvu ebhabhathane aqinile kanye namavalvu ebhabhathane asebenza kahle kakhulu asebenza ezindaweni ezihambisanayo kodwa ezihlukene ekulawuleni uketshezi. Ukwakheka kwesihlalo serabha esingashintshi sevalvu eqondile kwenza kube ukukhetha okusebenzayo nokungabizi kakhulu kwezicelo eziphakathi njengokuhlinzekwa kwamanzi, ukucubungula ukudla noma ukuvikela umlilo. Uma ukusebenza nokuqina kungaxoxiswana ngakho, khona-ke ivalvu yebhabhathane esebenza kahle kakhulu iyimpendulo. Ngezicelo ezifihliwe (njengemipayipi engaphansi komhlaba), zombili izindlela zingasetshenziswa, kodwa isisindo esilula kanye nezindleko eziphansi zevalvu eqondile ngokuvamile ziyasebenza ngaphandle kokuthi izimo ezimbi kakhulu zidinga okunye.