Ivalvu yeGlobe ye-ASME
Yintoni i-ASME Globe Valve?
Iivalvu zeglobe ziivalvu zokuvala ezihamba ngomgca ezisetyenziselwa ukuqala, ukumisa okanye ukulawula ukuhamba kusetyenziswa ilungu lokuvala elibizwa ngokuba yidiski. Isihlalo sevalvu yeglobe siphakathi kwaye sihambelana nombhobho, kwaye ukuvulwa kwesihlalo kuvalwa ngediski okanye iplagi. Idiski yevalvu yeglobe ingavala ngokupheleleyo indlela yokuhamba okanye ingasuswa ngokupheleleyo. Ukuvulwa kwesihlalo kutshintsha ngokulinganayo ngokuhamba kwediski, nto leyo efanelekileyo kwimisebenzi ebandakanya ukulawulwa kokuhamba. Iivalvu zeglobe zifanelekile kwaye zisetyenziswa kakhulu ukulawula okanye ukumisa ukuhamba kolwelo okanye igesi kumbhobho ukuze kuthintelwe kwaye kulawulwe ukuhamba kolwelo kwaye zihlala zisetyenziswa kwiipayipi ezincinci.
Ivalvu yeGlobe ye-ASMEyenye yezona ndlela zidumileyo zoyilo lweevalvu zeglobe, zenkqubo ye-US kunye ne-API. Ububanzi bangaphakathi, izixhobo, ubuso ngobuso, ubukhulu bodonga, ubushushu boxinzelelo, zichazwa yi-ASME B16.34.
Ukongeza, kuxhomekeke kuyilo lwesihlalo kunye nediski, umthwalo wezihlaloIivalvu zeglobhu ze-ASMEinokulawulwa kakuhle ngesiqu esikrufulwe ngezikrufu. Amandla okutywinaIvalvu yeglobhu ye-ASMEziphezulu kakhulu. Zingasetyenziselwa umsebenzi xa ungekho emsebenzini. Ngenxa yomgama omfutshane wokuhamba kwediski phakathi kweendawo ezivulekileyo nezivaliweyo,Iivalvu zeglobhu ze-ASMEZilungele ukuba ivalvu kufuneka ivulwe kwaye ivalwe rhoqo. Ngoko ke, iivalvu zeglobe zingasetyenziselwa imisebenzi eyahlukeneyo.
iIivalvu zeGlobe ze-ASMEingasetyenziselwa neenjongo zokuqhobosha. Iivalvu ezininzi ezihlala umntu omnye zisebenzisa ulwakhiwo lwekheji okanye uhlobo lwe-retainer ukugcina iringi yesihlalo, ukubonelela ngesikhokelo seplagi yevalvu, kunye nokubonelela ngeendlela zokuseka iimpawu ezithile zokuhamba kwevalvu. Ingatshintshwa ngokulula ngokutshintsha iindawo zokusika ukutshintsha uphawu lokuhamba okanye ukubonelela ngomthamo ophantsi.ukuhamba, ukunciphisa ingxolo, okanye ukunciphisa okanye ukuphelisa i-cavitation.
Iipateni zomzimba ze-ASME Globe Valve, kukho iipateni ezintathu eziphambili zomzimba okanye uyilo lweevalvu zeGlobe, ezizezi:
- 1). Ipateni eQhelekileyo (ekwaziwa ngokuba yiTee Pattern okanye iT – Pattern okanye iZ – Pattern)
- 2) .Iphethini ye-Angle
- 3). Ipateni ye-Oblique (ekwaziwa ngokuba yiWye Pattern okanye iY – Pattern)
Umgaqo Wokusebenza weIvalvu yeGlobe ye-ASME
Ivalvu yeglobe yenziwe yidiski eshukumayo kunye nesihlalo sendandatho esimileyo emzimbeni ongqukuva. Isihlalo sevalvu yeglobe siphakathi kwaye sihambelana nombhobho, kwaye umngxuma osesihlalweni uvalwa ngediski. Xa ivili lesandla lijikeleziswa ngesandla okanye yi-actuator, intshukumo yediski ilawulwa (yehliswa okanye iphakanyisiwe) ngesiqu sevalvu. Xa idiski yevalvu yeglobe ihleli phezu kwendandatho yesihlalo, ukuhamba kwamanzi kuyeka ngokupheleleyo.
Eyona nto iphambili kwivalvu ye-ASME Globe
- 1) .Izakhono ezilungileyo zokutywina
- 2). Umgama omfutshane wokuhamba kwediski (stroke) phakathi kweendawo ezivulekileyo nezivaliweyo,Iivalvu zeglobhu ze-ASMEzilungele ukuba ivalvu kufuneka ivulwe kwaye ivalwe rhoqo;
- 3).Ivalvu yeglobhu ye-ASME ingasetyenziswa njengevalvu yokujonga ukumisa ngokutshintsha uyilo kancinci.
- 4).TNazi iindlela ezahlukeneyo zobuchule ezifumanekayo kwiindlela ze-tee, Wye, kunye ne-angle body.
- 5).Ukuyilungisa nokuyifaka kwakhona izihlalo ngokulula, ngeenjongo ezahlukeneyo.
- 6).Ubuchule bokubhoboza obuphakathi ukuya kobulungileyo, ngokutshintsha ulwakhiwo lwesihlalo kunye nediski.
- 7).BItywina le-ellows liyafumaneka xa liceliwe.
Iinkcukacha zobugcisa zeevalvu zeglobhu ze-ASME
| Uyilo kunye noMveliso | BS1873/ASME B16.34 |
| I-NPS | 2"-30" |
| Uvavanyo loxinzelelo (Udidi) | Iklasi150-Iklasi4500 |
| Ubuso ngobuso | I-ANSI B16.10 |
| Ubukhulu beFlange | I-AMSE B16.5 |
| Ubukhulu bokuwelda kwempundu | I-ASME B16.25 |
| Uvavanyo lobushushu boxinzelelo | I-ASME B16.34 |
| Uvavanyo kunye nokuhlolwa | I-API598 |
| Bdoy | Intsimbi yekhabhoni, Intsimbi engatyiwayo, Intsimbi ye-alloy |
| Isihlalo | intsimbi engatyiwayo, intsimbi ye-alloy, i-Stellite coating. |
| Umsebenzi | ivili lesandla, igiya lesandla, i-actuator yombane, i-actuator yomoya |
| Ipateni yomzimba | Ipateni eqhelekileyo (iphethini ka-T okanye uhlobo luka-Z), ipateni ye-Angle, ipateni ka-Y |
Izinto zokuHlola eziQhelekileyo kwi-API 600
| Ikhowudi yokuHlola | Umphezulu weRingi yeSihlalo Inxalenye yeSibini | Umphezulu weWedge Icandelo 3 | Isiqu Inxalenye yeNombolo 4 | Isihlalo esingasemva Inxalenye yeSigaba 9 |
| 1 | F6 | F6 | F6 | F6 |
| 2 | F304 | F304 | F304 | F304 |
| 5 | I-Stellite | I-Stellite | F6 | F6 |
| 8 | I-Stellite | F6 | F6 | F6 |
| 9 | IMonel | IMonel | IMonel | IMonel |
| 10 | F316 | F316 | F316 | F316 |
| 13 | I-alloy 20 | I-alloy 20 | I-alloy 20 | I-alloy 20 |
Iinkcukacha zeMpahla eziQhelekileyo
| Igama leeCandelo | Intsimbi yeCarbon ukuya kwi-ASTM | Intsimbi ye-Alloy eya kwi-ASTM | Intsimbi Engagqwaliyo ukuya kwi-ASTM | ||||||||
| 1 | Umzimba | A216 WCB | I-A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
| 9 | Ibhonethi | A216 WCB | I-A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
| 6 | Ibholti | A193 B7 | A320 L7 | A193 B7 | A193 B16 | A193 B16 | A193 B16 | A 193 B8 | A 193 B8 | A 193 B8 | A 193 B8 |
| 5 | I-nut | A194 2H | A194 2H | A194 2H | A194 4 | A194 4 | A194 4 | A194 8 | A194 8 | A194 8 | A194 8 |
| 11 | Indlala | A182 F6a | A182 F6a | A182 F6a | A182 F6a | A182 F6a | A182 F6a | 304 | 316 | 304L | 316L |
| 12 | I-Gland Flange | A216 WCB | I-A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
| 3 | Idiski | A216 WCB | I-A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
| 7 | I-Gasket | Inxeba Elijikelezayo le-SS elinegrafiti, okanye inxeba elijikelezayo le-SS eline-PTFE, okanye i-PTFE eqinisiweyo | |||||||||
| 10 | Ukupakisha | I-graphite eboyiweyo, okanye i-Die-formed graphite ring okanye i-PTFE | |||||||||
| 13 | Isiqu seNut | I-alloy yeCopper okanye i-A439 D2 | |||||||||
| 14 | Ivili lesandla | Intsimbi ethambileyo okanye intsimbi yekhabhoni | |||||||||
Iimveliso zibonisa
Ukusetyenziswa kweevalvu ze-ASME Globe
Ivalvu yeGlobe ye-ASMEIsetyenziswa kakhulu kwiinkonzo ezahlukeneyo; zombini iinkonzo zoxinzelelo oluphantsi kunye nolwelo oluphezulu. Iindlela eziqhelekileyo zokusetyenziswa kweevalvu zeglobe zezi:
- 1). Yenzelwe imibhobho ekhutshwa rhoqo, okanye ukuthomalalisa ulwelo kunye negesi ephakathi
- 2). Ulwelo: Amanzi, umphunga, umoya, ipetroliyam ekrwada kunye neemveliso zepetroliyam, igesi yendalo, igesi econdensate, izisombululo zobuchwepheshe, ioksijini, iigesi ezingamanzi nezingenalo ugonyamelo
- 3).Iinkqubo zamanzi okupholisa ezifuna ukulawulwa kokuhamba kwamanzi.
- 4).Inkqubo yeoyile yepetroli efuna ukuvaleka.
- 5).Iinkqubo zokulawula ivalvu.
- 6).Iiventilasi eziphezulu kunye needreyini ezisezantsi.
- 7).Ioyile negesi, Amanzi okungenisa ukutya, ukutya kweekhemikhali, iRefinery, ukukhupha umoya wecondenser, kunye neenkqubo zokukhupha amanzi amdaka.
- 8).Ii-vents kunye ne-drain zebhoyila, iinkonzo zomphunga, ii-vents eziphambili zomphunga kunye ne-drain, kunye ne-heater drains.
- 9).I-turbine iyavala kwaye ikhuphe amanzi amdaka.