I-Womic Steel inikezela ngamaxabiso asemgangathweni aphezulu kunye namaxabiso akhuphisanayo e-cryogenic ball valve, i--196℃ low heavy ball valve, i-LNG ball valve, i-cryogenic ball valve ekhuselekileyo emlilweni. Isatifikethi seMill EN 10204 3.1/3.2, uvavanyo lwe-hydro, uvavanyo lokusebenza kwe-cryogenic, unyango olujulile lwe-cryogenic, uyilo oluphantsi lokukhupha umbane, uyilo olukhuselekileyo emlilweni, i-anti-static, i-blow-out stem, i-bonnet ende ene-drip plate. Ubonelelo ngqo kwifektri lweeprojekthi ze-LNG kunye ne-cryogenic zoshishino kwihlabathi liphela.
1. I-Womic Steel: Amandla okuvelisa kunye namandla enkampani
I-Womic Steel Group ngumvelisi ophambili kunye nomthengisi wehlabathi weevalvu ze-cryogenic onamava angaphezu kweminyaka engama-20 ekuveliseni iivalvu ezisebenzayo kakhulu kwiinkonzo zobushushu obuphantsi kakhulu. Iziko lethu lokuvelisa elikumgangatho ophezulu lidibanisa amandla okwakha, oomatshini, okuhlanganisa kunye nokuvavanya:
l Umgca wokuvelisa iValve yeCryogenic:Umgca wokuvelisa iivalvu ze-cryogenic ozinikeleyo oneziko loomatshini be-CNC, iilathe ezithe nkqo, kunye nezixhobo zovavanyo ze-cryogenic ezikhethekileyo ezikwaziyo ukuvavanya iivalvu ukuya kuthi ga kwi--196°C kusetyenziswa i-nitrogen engamanzi. Umthamo wonyaka wemveliso udlula iivalvu zebhola ze-cryogenic ezingama-20,000.
l Indawo yoNyango lwe-Deep Cryogenic:Isithando somlilo esisetyenziswa ngaphakathi endlwini (-196°C) sokunceda ekunciphiseni uxinzelelo lwazo zonke iindawo ezixineneyo, ukuqinisekisa uzinzo olulinganayo kunye nokuthintela ukugqwetheka kubushushu benkonzo. Iindawo zimanziswa ubuncinane iiyure ezi-8 ngokweemfuno ze-BS 6364.
Zonke iivalvu zebhola ze-cryogenic ziyilwe ngezi zinto zilandelayo:
l Ibhonethi eyoluliweyo enepleyiti yokuthontsiza ukugcina ukupakisha kwesiqu kubushushu obusebenzayo
Isixhobo sokumisa isiseko esichasene ne-static kwi-API 608 kunye ne-BS 5351 nganye
Uyilo lwesiqu esingenakukhupha umoya
l Uyilo olukhuselekileyo emlilweni ngokwe-API 607 / ISO 10497
l Intlanganiso yokupakisha yokukhupha umoya obalekayo ephantsi ISO 15848-1 (Udidi A okanye B)
l Ukuvimba kabini kunye nokukwazi ukopha (ukhetho)
l Ukukhululeka koxinzelelo lweCavity (iivalvu ezifakwe kwi-trunnion)
Iziqinisekiso zoMgangatho kunye nokuThotyelwa kweMithetho:
Isiqinisekiso se-ISO 9001:2015
l PED 2014/68/EU (CE Marking) yezixhobo zoxinzelelo
Ilayisenisi yeMonogram ye-API 6D / API 608 l
Isiqinisekiso se-l API 607 / API 6FA esikhuselekileyo emlilweni
Isiqinisekiso se-ISO 15848-1 sokukhupha umoya ophantsi
Isatifikethi se-EN 10204 3.2 esinokuqinisekiswa ngumntu wesithathu (TÜV, BV, SGS, LR)
Uhlolo lweQela lesithathu (TPI) oluvunyiweyo yi-SGS, i-BV, i-ABS, i-DNV, i-TÜV, i-Lloyd's Register
Ukuthobela i-NACE MR0175 / ISO 15156 kwizicelo ze-cryogenic zenkonzo emuncu
Isatifikethi se-ATEX siyafumaneka xa kuceliwe ukuba kukho umoya oqhumayo
Ukuguquguquka kweMveliso kwiiValve zeBhola zeCryogenic:
Ibhola edadayo: 1/2" – 8" (DN15 – DN200), Iklasi 150 – Iklasi 1500
Ibhola efakwe kwi-Trunnion: 2" – 48" (DN50 – DN1200), iKlasi 150 – iKlasi 2500
Uqhagamshelo lwe-L End: Flanged (RF, RTJ), Butt Weld (BW), Socket Weld (SW), Threaded (NPT)
l Ukusebenza: Isandla (i-lever, igiya), i-Pneumatic, i-Electric, i-Hydraulic
l Umthamo wemveliso wenyanga: iiyunithi ezili-1,500-2,000 kuxhomekeke kubungakanani kunye nobunzima
Ukwamkelwa kwihlabathi liphela:I-Womic Steel ngumthengisi othembekileyo kwiikhontraktha ze-EPC zehlabathi kunye nabaqhubi be-LNG kuquka iTechnip Energies, iMcDermott, iBechtel, kunye neSinopec, ekhonza amazwe angaphezu kwama-40 kumacandelo e-LNG, i-petrochemical, kunye negesi yemizi-mveliso.
2. Ivalvu yeBhola yeCryogenic: Ukwakhiwa kwezinto kunye neenkcukacha eziphambili
Iivalvu zebhola ezi-cryogenic zisebenza kumaqondo obushushu aphantsi njenge-196°C, apho izinto ezisemgangathweni ziba buthathaka kwaye iinkqubo zokutywina ezisemgangathweni ziyasilela ngenxa yokuxinana kobushushu. Iivalvu zethu zebhola ezi-cryogenic zenzelwe ngokukodwa ezi meko zinzima.
Iimpawu eziphambili zoYilo lweNkonzo ye--196°C:
Ibhonethi Eyongeziweyo EnePlate Yokuntywila:Ibhonethi yoluliwe ukuqinisekisa ukuba indawo yokupakisha (ii-stem seals) ihlala kubushushu obungaphezulu kokukhenkceza, ithintela ukwakheka komkhenkce kwaye igcine ukuthembeka kwe-seal. Ipleyiti yokuthontsiza ithintela ukufuma okuxineneyo ukuba kungangeni kwi-insulation okanye emzimbeni wevalvu.
Unyango lwe-Deep Cryogenic:Zonke iindawo eziqulathe uxinzelelo (umzimba, ibhonethi, ibhola, isiqu) zinyangwa ngoxinzelelo olunzulu kwi -196°C ubuncinane iiyure ezisi-8 (okanye imijikelo emininzi) ukuguqula i-austenite egciniweyo, ukunciphisa uxinzelelo olushiyekileyo, nokuqinisekisa uzinzo kubushushu benkonzo.
Izixhobo ezikhethekileyo zeNkonzo yeCryogenic:
| Icandelo | Iinketho zezinto eziphathekayo | Uluhlu lobushushu | Iimpawu eziphambili |
| Umzimba/Ibhonethi | I-ASTM A351 CF3/CF3M (304L/316L SS) | -196°C ukuya ku +300°C | Uzinzo lwe-Austenitic kumaqondo obushushu aphantsi |
| Umzimba/Ibhonethi | I-ASTM A352 LCB/LCC (Intsimbi yeCarbon eneTempesha ePhantsi) | -46°C ukuya ku +300°C | Ukuze ufumane inkonzo engabizi kakhulu ye-cryogenic |
| Umzimba/Ibhonethi | I-ASTM A182 F304L/F316L (Eyenziwe ngomatshini) | -196°C ukuya ku +300°C | Ukuthembeka okuphezulu, ubungakanani obuncinci |
| Ibhola | I-ASTM A182 F304/F316 | -196°C ukuya ku +300°C | Ihlolwe yi-100% PT/UT |
| Ibhola | I-ASTM A351 CF3/CF3M (Umdibanisi) | -196°C ukuya ku +300°C | Ubukhulu obukhulu |
| Isiqu | I-ASTM A182 F304L/F316L | -196°C ukuya ku +300°C | Amandla ande kwiqondo lobushushu eliphantsi |
| Isiqu | I-ASTM A182 F XM-19 | -196°C ukuya ku +300°C | Amandla aphezulu, ukumelana nokuguguleka okuphezulu |
| Isihlalo seValve | I-PCTFE (iPolychlorotrifluoroethylene) | -196°C ukuya ku +150°C | Izinga lokuvuza eliphantsi, uphawu oluhle kakhulu lwe-cryogenic |
| Isihlalo seValve | I-RPTFE (i-PTFE eqinisiweyo) | -196°C ukuya ku +200°C | Ukuvalwa okulungileyo, amandla aphezulu obushushu |
| Isihlalo seValve | HLOLA | -196°C ukuya ku +260°C | Amandla aphezulu, ukhetho lwesihlalo sesinyithi |
| Izitywino zomzimba | Inxeba Elijikelezayo (iGraphite + SS) | -196°C ukuya ku +400°C | Itywina elikhuselekileyo emlilweni nelithembekileyo |
| Ukupakisha Isiqu | I-Graphite Emission Ephantsi | -196°C ukuya ku +400°C | Isiqinisekiso se-ISO 15848 |
| Ukubholta | I-ASTM A320 Gr.L7 / A194 Gr.7 | Intsimbi yekhabhoni enobushushu obuphantsi | Kwi-LCB body |
| Ukubholta | I-ASTM A320 Gr.B8 CL.2 / A194 Gr.8 | -196°C ukuya ku +400°C | Yomzimba we-SS |
| I-Anti-static | Intwasahlobo/ibhola ye-alloy ye-copper | – | Ibhola ebekwe phantsi emzimbeni |
Ukuqinisekiswa kwezinto ezibalulekileyo:
l 100% PMI (Ukuchonga Izinto Ezilungileyo) kuzo zonke izinto ze-alloy
Uvavanyo lweCharpy V-notch impact kwi -196°C ukuze kuqinisekiswe izinto zomzimba/ibhonethi (ngokwe BS 6364)
Uvavanyo lokuqina kwezicelo zenkonzo emuncu (ngokwe-NACE MR0175)
3. Ukuthobela uLuhlu lweeDimensional kunye neMigangatho
| Into | Inkcazo |
| Umgangatho woYilo | I-BS 6364, i-MSS SP-134, i-API 608, i-API 6D, i-ASME B16.34 |
| Uhlobo | Ibhola edadayo (≤ 8") / Ibhola efakwe kwiTrunnion (≥ 2") |
| Uluhlu lobungakanani | 1/2" – 48" (DN15 – DN1200) |
| Uvavanyo loxinzelelo | Iklasi ye-150 - Iklasi yama-2500 (PN20 - PN420) |
| Uluhlu lobushushu | -196°C ukuya ku +300°C (kuxhomekeke kwizinto ezisetyenzisiweyo) |
| Ukuphelisa uQhagamshelo | I-Flanged (RF, RTJ ngokwe-ASME B16.5/B16.47), i-Butt Weld (ngokwe-ASME B16.25), i-Socket Weld (ngokwe-ASME B16.11), i-Threaded (NPT ngokwe-ASME B1.20.1) |
| Ubuso ngobuso | I-ASME B16.10, i-API 6D, okanye ngokweemfuno zomthengi ngamnye |
| Ikhuselekile emlilweni | I-API 607 (isihlalo esithambileyo), i-API 6FA (isihlalo sesinyithi) |
| Ukukhutshwa kweMbaleki | I-ISO 15848-1 (Udidi A okanye B) |
| I-Anti-static | Ngokwe-API 608, BS 5351 |
| Ukubholta | I-ASME B16.34, i-ASTM A320/A194 |
| Uvavanyo lweCryogenic | BS 6364, MSS SP-134 |
| Uvavanyo lwe-Hydrostatic | I-API 598, i-ISO 5208 |
| Ukusebenza | Ilever, iGear (Yesandla), iPneumatic, iElectric, iHydraulic |
4. Uqwalaselo olufumanekayo – Ivalvu yeBhola yeCryogenic (-196°C)
| Ubungakanani | Iklasi yoXinzelelo | Izinto zomzimba | Izinto zeSihlalo | Phelisa uQhagamshelo | Ukusebenza | Isicelo esiqhelekileyo |
| 1/2" – 2" | CL150-1500 | A182 F304L/F316L | I-PCTFE | SW/NPT/BW | Ilever | Izixhobo, imigca yesampulu |
| 2" – 8" | CL150-1500 | A351 CF3/CF3M | I-PCTFE/RPTFE | I-Flange/BW | Ilever/Isixhobo | Isityalo se-LNG, imibhobho ye-ASU |
| 2" – 8" | CL150-1500 | I-A352 LCB/LCC | I-PCTFE/RPTFE | I-Flange/BW | Izixhobo | Iiterminal zokufumana i-LNG |
| 6" – 24" | CL150-600 | A351 CF3/CF3M | I-PCTFE/UMBONO | I-Flange/BW | Izixhobo | Iintambo eziphambili zokudlulisa i-LNG |
| 6" – 24" | CL150-600 | I-A352 LCB/LCC | I-PCTFE | I-Flange/BW | Izixhobo | Inkonzo yentsimbi yekhabhoni enobushushu obuphantsi |
| 12" – 42" | CL150-300 | A351 CF3/CF3M | I-PCTFE | I-Flange/BW | Izixhobo/Umbane | Ivenkile yokugcina itanki ye-LNG |
| 2" – 48" | CL150-2500 | A351 CF3M | I-PCTFE/RPTFE | BW kuphela | Izixhobo/Umbane | I-cryogenic yoxinzelelo oluphezulu |
Uqwalaselo olwenziwe ngokwezifiso ngaphandle kwezi zigaba lufumaneka xa luceliwe. Uyilo olufakwe kwi-trunnion luyimfuneko kwiisayizi ≥ 2" nge-API 6D nganye, okanye kwii-applications zoxinzelelo oluphezulu/i-torque ephezulu.
Iimpawu eziphambili zoYilo - Ibhola edadayo (Ubungakanani ≤ 8"):
l Ulwakhiwo lomzimba olunenxalenye enye okanye ezimbini
l Uyilo lwesihlalo esisebenza ngamandla entwasahlobo
l I-torque yokusebenza ephantsi
l Indawo yokungena ephezulu okanye esecaleni iyafumaneka
Iimpawu eziphambili zoYilo - Ifakwe kwi-trunnion (Ubungakanani ≥ 2"):
Ibhola exhaswa ziibheringi ze-trunnion zoxinzelelo oluphezulu
l Uyilo lwesihlalo esithwele intwasahlobo (ukuvalwa kwesihlalo esisezantsi)
l Ukukhululeka koxinzelelo lomqolo (isihlalo esisezantsi okanye umoya womzimba)
l I-torque yokusebenza ephantsi nokuba uxinzelelo lungakanani na
l Uvimba oluphindwe kabini kunye nokukwazi ukopha
l Uyilo lokungena phezulu okanye olusecaleni
5. Imigangatho Eqhelekileyo Yeevalvu Zebhola ZeCryogenic
| Umgangatho | Inkcazo | Isicelo |
| BS 6364 | Iinkcukacha zeevalvu ze-cryogenic ze-LNG kunye nenkonzo yobushushu obuphantsi | Umgangatho oyintloko woyilo lwenkonzo ye-cryogenic |
| I-MSS SP-134 | Imigangatho yeevalvu zenkonzo ye-cryogenic | Umgangatho olinganayo wase-US kwiivalvu ze-cryogenic |
| I-API 608 | Iivalvu zebhola zesinyithi - iziphelo ezijijekileyo nezineempundu | Umgangatho woyilo lwevalvu yebhola |
| I-API 6D | Iinkcukacha zeevalvu zemibhobho kunye neepayipi | Imigangatho yevalvu yebhola yombhobho |
| I-ASME B16.34 | Iivalvu - ezijijekileyo, ezifakwe imisonto, kunye nesiphelo se-welding | Isiseko sovavanyo loxinzelelo-lobushushu |
| I-API 607 | Uvavanyo lomlilo kwiivalvu ezithambileyo zekota-turn | Isatifikethi esikhuselekileyo emlilweni |
| I-API 6FA | Uvavanyo lomlilo lweevalvu | Isatifikethi esikhuselekileyo emlilweni seevalvu ze-API 6D |
| I-ISO 15848-1 | Iivalvu zoshishino - iinkqubo zokulinganisa kunye nokuvavanya ukukhutshwa komoya ophumayo | Isatifikethi sokukhupha ukungcola okuphantsi |
| I-ASME B16.10 | Ubukhulu bobuso ngobuso kunye nobukhulu bokuphela | Umgangatho wobukhulu bokufakwa |
| I-API 598 | Ukuhlolwa nokuvavanywa kwevalvu | Iikhrayitheriya zokwamkelwa kovavanyo |
| I-NACE MR0175 / ISO 15156 | Amashishini e-petroleum negesi yendalo - izixhobo zeemeko ze-H2S | Ukuthobela imithetho yenkonzo eyomileyo |
Ukusetyenziswa:Iziphelo zokufumana i-LNG, izitishi zokunyibilikisa i-LNG, izixhobo zokulayisha ezithwala i-LNG, imibhobho yetanki yokugcina i-LNG, iiyunithi zokwahlukanisa umoya (i-ASU), imibhobho ye-nitrogen/ulwelo lwe-oxygen, inkonzo ye-hydrogen engamanzi, izitishi ze-ethylene kunye ne-propylene, inkonzo ye-methanol enobushushu obuphantsi, ukucutshungulwa kwegesi ye-cryogenic, inkonzo ye-helium engamanzi.
6. Inkqubo yoMveliso – Ivalvu yeBhola yeCryogenic (-196°C)
I-Womic Steel isebenzisa iinkqubo ezikhethekileyo zokuvelisa iivalvu zebhola ezi-cryogenic, igxininisa ekuqinisekisweni kwezinto, unyango olujulileyo lwe-cryogenic, kunye nokuqinisekiswa kokusebenza kwe-cryogenic.
Inyathelo 1: Ukuhlolwa kwezinto eziluhlaza kunye ne-PMI
l Ii-castings zomzimba kunye ne-bonnet/forgings eziqinisekiswe ngohlalutyo lweekhemikhali kunye ne-PMI
Uvavanyo lweCharpy kwi -196°C nganye kwi-BS 6364 ukuqinisekisa ukuqina kobushushu obuphantsi
l 100% PT (Penetrant Testing) kunye ne UT (Ultrasonic Testing) kwii-castings zeziphene
Uvavanyo lokuqina kwezicelo zenkonzo emuncu
Inyathelo lesi-2: Umatshini
l CNC machining yomzimba, ibhonethi, ibhola, kunye nesiqu ukuya kwiindlela ezichanekileyo zokunyamezelana
l Ukusila okukhethekileyo kwebhola kunye neendawo zokutywina isihlalo ukuze kutywinwe ngokuqinileyo
l Ukugqitywa komphezulu weendawo zokutywina: Ra ≤ 0.4μm (ukugqitywa kwesibuko)
l Umatshini wokwenza umsele ochasene ne-static, umsele oqinileyo wokukhupha umoya, kunye nokunciphisa umngxuma
Inyathelo lesi-3: Unyango lwe-Deep Cryogenic (Lubaluleke kakhulu kwiNkonzo ye--196°C)
Zonke izinto ezibalulekileyo (umzimba, ibhonethi, ibhola, isiqu) zinyangwa ngokunzulu kwi--196°C (ukuntywila nge-nitrogen engamanzi)
l Ubuncinane bexesha lokuntywila: iiyure ezi-8 nge-BS 6364 nganye (ngesiqhelo iiyure ezi-8-12)
l imijikelo emininzi (ukuya kuthi ga kwimijikelo emi-3) yemijikelo emikhulu okanye enzima
Injongo: Guqula i-austenite egciniweyo ibe yi-martensite, unciphise uxinzelelo olushiyekileyo, uqinisekise uzinzo olulinganayo kubushushu benkonzo
l Kulandelwa kukufudumala ukubuyisela i-ductility (yeeklasi ze-martensitic stainless steel)
Inyathelo lesi-4: Ukuhlanganisa
l Izinto ezicociweyo ukususa nayiphi na ioyile, igrisi, okanye izinto ezingcolisayo
l Lonke udibaniso lwenziwa kwindawo ecocekileyo yegumbi
l Ukuthambisa ngee-lubricants ezihambelana ne-cryogenic (ezingena-hydrocarbon)
l Ukufakwa kwesihlalo kunye nokulungiswa komthwalo wangaphambi kokulayisha (izihlalo ezinikwe amandla entwasahlobo)
l Ufakelo lwe-stem seal kunye nokupakisha olune-fugitive emission packing ephantsi
l Indibano yebhonethi eyongeziweyo enepleyiti yokuthontsiza ebekwe ngaphezulu komgca wokufaka ubushushu
Inyathelo lesi-5: Uhlolo lwangaphambi kovavanyo
Ukuqinisekiswa kobukhulu bazo zonke izilinganiso ezibalulekileyo
l Ukuqinisekiswa kwe-torque ye-bolting (ngokwe-ASME B16.34)
Uvavanyo lwesihlalo somoya (uxinzelelo oluphantsi) ngaphambi kovavanyo lwe-hydrostatic
Inyathelo 6: Uvavanyo lwe-Hydrostatic (Ngokwe-API 598)
Uvavanyo lweShell: 1.5 × uxinzelelo loyilo ubuncinane imizuzwana eli-15, akukho ukuvuza okubonakalayo
Uvavanyo lwesihlalo: 1.1 × uxinzelelo loyilo, uvavanyo lwesihlalo oluphantsi koxinzelelo (0.5-0.7 MPa), amazinga okuvuza amkelekileyo kwi-API nganye 598
Akukho ukuvuza okubonakalayo kwizinto zokuvala
Inyathelo lesi-7: Uvavanyo lweCryogenic Performance (Ibalulekile kwiNkonzo ye--196°C ngokwe-BS 6364)
l Ivalvu efakwe kwi-nitrogen engamanzi (-196°C) ubuncinane iiyure ezi-2
l Uvavanyo lwesihlalo somoya oluphantsi (0.6 MPa) kubushushu obuphantsi
l Ukuvuza kwesihlalo kulinganiswa: ≤ 0.1 cc/min nge intshi nganye yobubanzi besihlalo
l Umlinganiselo weTorque kubushushu obucacileyo
Uvavanyo lwe-Cycle: Ubuncinane imijikelo eli-10 epheleleyo kubushushu
Akukho monakalo okanye ukugqwetheka okuvunyelweyo
Inyathelo 8: Uvavanyo lokukhupha umoya ongcolileyo (Ngokwe-ISO 15848-1)
Iivalvu ezine-fugitive emission packing eziphantsi ezivavanyiweyo ngokwe-ISO 15848-1
Ukuvuza okulinganiswe kwisixhobo sokubona ukuvuza kwe-helium
Ukwamkelwa: Udidi A okanye B kuxhomekeke kwimfuno yomthengi
Inyathelo 9: Uvavanyo olukhuselekileyo emlilweni (Ngokwe-API 607 okanye kwi-API 6FA - Xa uceliwe)
Ivalvu evezwe kumlilo ongama-650-760°C imizuzu engama-30
Uvavanyo lokuvuza kwesihlalo emva komlilo nokupholisa
Ukuhlolwa okubonakalayo komonakalo
Inyathelo le-10: Uhlolo lokugqibela kunye nokuMakisha
Ukuhlolwa okubonakalayo kweziphene zomphezulu, ukuthembeka kokugquma, ukufundeka kokuphawula
l Ukumakisha okusisigxina ngokwe-BS 6364 / API 6D: umenzi, ubungakanani, udidi loxinzelelo, izinto, umlinganiselo wobushushu, isitampu sovavanyo, inombolo yeserial
Ukulungiselela nokuhlaziya amaxwebhu
7. Iinkqubo zoLawulo loMgangatho kunye noVavanyo lweValve yeCryogenic Ball (-196°C)
| Iqonga | Indlela yokuhlola | Injongo |
| Izinto eziluhlaza (Ukubumba/Ukubumba) | I-PMI (Ukuchonga Izinto Ezilungileyo) | Qinisekisa umgangatho we-alloy kunye nekhemistri |
| Impahla engekasilwa | Uvavanyo lweCharpy Impact kwi -196°C | Qinisekisa ukuqina kobushushu obuphantsi ngokwe-BS 6364 |
| Impahla engekasilwa | I-PT/UT (Uhlolo lokuKhangela) | Fumanisa iziphene zokuphosa, i-inclusions, i-porosity |
| Umatshini | Uvavanyo lweMilinganiselo | Qinisekisa ubungakanani obubalulekileyo ngokwe-ASME B16.34 nganye |
| Emva koNyango oluNzulu lweCryogenic | Ukuhlolwa kwakhona kobukhulu | Qinisekisa uzinzo olulinganayo emva konyango |
| Indibano | Uhlolo olubonakalayo | Jonga ungcoliseko, udibaniso olufanelekileyo |
| Uvavanyo lwangaphambi kovavanyo | Uvavanyo lweSihlalo soMoya (Uxinzelelo oluphantsi) | Qinisekisa ukuthembeka kwesitywina sokuqala |
| Ivalvu egqityiweyo | Uvavanyo lweShell yeHydrostatic | Ukunyaniseka koxinzelelo nge-API nganye 598 |
| Ivalvu egqityiweyo | Uvavanyo lweSihlalo esiHlanganisiweyo ngamanzi | Ukuthembeka kwetywina lesihlalo ngokwe-API 598 nganye |
| Ivalvu egqityiweyo | Uvavanyo lweNtsebenzo yeCryogenic ngokwe-BS 6364 | -196°C ukuqinisekiswa kokusebenza (okubalulekileyo) |
| Ivalvu egqityiweyo | Uvavanyo lokukhupha umoya olubalekileyo (ngokwe-ISO 15848-1) | Ukuthembeka kwetywina elivuzayo eliphantsi |
| Ivalvu egqityiweyo | Uvavanyo olukhuselekileyo emlilweni (API 607/API 6FA - xa uceliwe) | Isatifikethi esikhuselekileyo emlilweni |
| Ivalvu egqityiweyo | Uvavanyo lweTorque | Qinisekisa i-torque yokusebenza kwiqondo lobushushu le-cryogenic |
| Ivalvu egqityiweyo | Uhlolo olubonakalayo nolunobukhulu | Ukuqinisekiswa komgangatho wokugqibela |
| Ivalvu egqityiweyo | Ukuqinisekiswa kokumakisha | Qinisekisa ukuba uphawu olusisigxina ngokwemigangatho |
Uvavanyo oluKhethekileyo lwezicelo ezibalulekileyo zeCryogenic:
Uvavanyo lokuVula iHelium (i-mass spectrometer) kwiinkonzo ezibalulekileyo
Uvavanyo lwesihlalo segesi esinoxinzelelo oluphezulu (nge-API 6D nganye)
Uvavanyo lobomi bomjikelo (ukuya kuthi ga kwimijikelo engama-500 kubushushu obufana ne-cryogenic)
l NDT (RT/UT) yokuhlolwa kwe-x-ray
Ukuthobela i-ATEX kwimozulu eqhumayo
Ukuthobela imithetho ye-NACE MR0175 yenkonzo emuncu
Uvavanyo lwempembelelo lweCharpy kwizinto zokwenyani (hayi nje iikhuphoni zovavanyo)
8. Iizicelo eziphambili – Ivalvu yeBhola yeCryogenic (-196°C)
l IiTerminali zokufumana i-LNG:I-LNG engeniswe kwiinkampani zokuthwala ingena kwiitanki zokugcina impahla ngeengalo zokukhulula impahla, ezilawulwa ziivalvu zebhola ezi-cryogenic. Isiphelo sendlela esiqhelekileyo esikhulu se-LNG sisebenzisa iivalvu zebhola ezi-cryogenic ezingama-300-500 zokukhulula impahla, ukugcina impahla, kunye nenkonzo yokuthumela impahla. Iivalvu zethu ziyahambelana ne-BS 6364 kunye ne-MSS SP-134 kwinkonzo ye-LNG.
l Izityalo ze-LNG Liquefaction:Igesi yendalo ipholiswa ukuya kuthi ga kwi -162°C ukuze kunyibilike ulwelo. Iivalvu zebhola ezi-cryogenic zilawula ukuhamba kwazo ngokusebenzisa ii-heat exchangers, ii-separators, kunye nee-fractionation columns. Ezi valve kufuneka zigcine ukuthembeka kwe-seal kumawaka ee-thermal cycles.
l Izixhobo zokulayisha ze-LNG Carrier:Ngexesha lokulayisha ukusuka kwisiphelo sendlela ukuya kwi-LNG carrier, iivalvu zebhola ezi-cryogenic ziyazihlukanisa kwaye zilawule ukuhamba kwazo. Uyilo olukhuselekileyo emlilweni (API 607) luyimfuneko xa kufakwa iingalo zokulayisha.
l IiYunithi zoKwahlula-hlula koMoya (i-ASU):I-nitrogen engamanzi (-196°C), i-oxygen engamanzi (-183°C), kunye ne-argon engamanzi (-186°C). Iivalvu zebhola ze-cryogenic zilawula ukukhutshwa nokugcinwa kwemveliso.
l Inkonzo yeHydrogen yolwelo:I-hydrogen engamanzi igcinwa kwi--253°C, ifuna iivalvu ezikhethekileyo ze-cryogenic. Ukufaka isicelo kule mozulu inzima, sicebisa umzimba wentsimbi engagqwaliyo ye-austenitic eneenkqubo zokutywina ezikhethekileyo.
l Izityalo ze-Ethylene kunye nePropylene:Usetyenziso oluphantsi lobushushu ukusuka kwi -40°C ukuya kwi -104°C. Iivalvu zebhola ze-cryogenic ziqhelekile kwiindawo ezibandayo ze-ethylene kunye neesekethe zokufudumeza ze-propylene.
l Inkonzo yeMethanol yobushushu obuphantsi:Izityalo zeMethanol ezineendawo ezishushu kakhulu (-20°C ukuya kwi-40°C) zifuna iivalvu ze-cryogenic ukuze zisebenze ngokuthembekileyo.
l Ukucubungula igesi yeCryogenic:Ukukhupha i-NGL (ulwelo lwegesi yendalo) apho igesi ibanda khona ukuze yahlule i-ethane, i-propane, kunye ne-butane. Iivalvu zebhola ze-cryogenic zisetyenziswa kwizahluli ezibandayo kunye nemigca ephezulu ye-de-ethanizer.
l Inkonzo yeHelium yolwelo:I-helium engamanzi kwi -269°C ifuna iivalvu ezikhethekileyo ze-cryogenic ezinezihlalo ze-PCTFE okanye ze-ceramic. Ziyafumaneka xa ziceliwe.
l Inyukliya kunye neenqwelo-moya:Ukuphathwa kolwelo olune-cryogenic kwiindawo zophando lwe-rocket kunye ne-nuclear.
9. Ukupakishwa kunye nokuthunyelwa – Ivalvu yeBhola yeCryogenic (-196°C)
Ukupakisha:
l Ukhuseleko:Zonke iivalvu zigqunywe ngephepha lokuthintela umhlwa okanye ngephepha le-VCI (Vapor Corrosion Inhibitor). Iiflanges kunye noqhagamshelo olupheleleyo olugqunywe ngee-caps zeplastiki okanye ii-flanges zentsimbi ezingaboniyo.
l Ukhuseleko Lokuphela:Iikhaphu zeplastiki zeephelo ze-SW/NPT; iiflange zentsimbi ezingaboniyo ezineegasket zeephelo ezirhangqiweyo (RF okanye RTJ). Iiphelo ze-butt weld zikhuselwe ngeekhaphu zeplastiki okanye zentsimbi.
l Ukhuseleko lwe-Actuator:Abaqhubi bezixhobo okanye ii-actuators ezikhuselwe ngezigqubuthelo zeplastiki kunye ne-foam padding.
l Iibhokisi zomthi:Kwiivalvu ezincinci (≤ 8"), iiyunithi ezizodwa okanye ezininzi zipakishwe kwiikreyithi zokhuni eziqinileyo ezine-foam padding. Iikreyithi zeplywood ezikumgangatho wokuthumela ngaphandle ezinee-braces zekona.
l IiCradle zeNsimbi:Kwiivalvu ezinkulu (> 8") okanye iivalvu ezinzima, iiklashi zentsimbi nganye nganye ezineenkxaso ezijijekileyo ukuthintela umonakalo ngexesha lokuthuthwa. Iivalvu ziqiniswe ngebholthi kwiklashi.
l Isicoci sokucoca:Iingxowa ze-silica gel desiccant ezifakwa ngaphakathi kwiikreyithi ukuze zifunxe umswakama kwaye zithintele ukugqwala.
Ukuhambisa ngenqanawe:
l Indlela yothutho:Uthutho oluqhelekileyo lomoya kwiivalvu ezincinci ezingxamisekileyo; uthutho lwaselwandle kwiivalvu ezinkulu kunye neeodolo ezinkulu; uthutho lweprojekthi yeevalvu ezinkulu ezithwele umthwalo omkhulu.
l Ukufakwa kwiikhonteyina:Iivalvu ezincinci zifakwe kwiipalethi kwaye zifakwe kwiikhonteyina; iivalvu ezinkulu zifakwe kwiikhonteyina ezisicaba okanye kwiikhonteyina ezivulekileyo phezulu.
l Ixabiso eliphantsi:Iivalvu ezinkulu kakhulu okanye ezinzima kakhulu (> 48" okanye > 5 tons) zithunyelwa ngazinye kwiinqanawa eziqhekekileyo.
l Iilebheli:Ibhokisi nganye okanye i-cradle ebhalwe inombolo yethegi yevalvu, ubungakanani, udidi loxinzelelo, izinto, inombolo ye-serial, kunye nemiyalelo yokuphatha. Iileyibhile ezikhethekileyo zesalathiso senkonzo ye-cryogenic.
l Amaxwebhu:I-MTC epheleleyo (EN 10204 Uhlobo 3.1/3.2), ingxelo yovavanyo lwe-hydrostatic, ingxelo yovavanyo lokusebenza kwe-cryogenic ngokwe-BS 6364, ingxelo yovavanyo lokukhupha ukungcola okubalekayo, isatifikethi esikhuselekileyo emlilweni (ukuba siyasebenza), ingxelo yobukhulu, uluhlu lokupakisha, i-invoyisi yorhwebo, i-bill of lading, isatifikethi semvelaphi, i-CE Declaration of Performance.
Amaxwebhu anikezelwa ngokuthunyelwa ngakunye:
Isatifikethi sovavanyo lweMill (EN 10204 Uhlobo 3.1 olusemgangathweni; Uhlobo 3.2 xa luceliwe)
Ingxelo yoVavanyo lwe-Hydrostatic (iqokobhe kunye nesihlalo, uxinzelelo, ubude, iziphumo)
l Ingxelo yoVavanyo lokuSebenza kweCryogenic ngokwe-BS 6364(Iziphumo zovavanyo -196°C, amazinga okuvuza, i-torque)
Ingxelo yoVavanyo loKhupho oluKhuphayo (ISO 15848-1 Class A okanye B)
Isatifikethi sovavanyo esikhuselekileyo emlilweni (i-API 607 okanye i-API 6FA - ukuba iyafuneka)
Ingxelo yoHlolo olunemilinganiselo (ukujonga ubuso ngobuso, ukubhola iflange, ubungakanani bebhore)
Iingxelo zoVavanyo lwezinto (i-PMI, impembelelo yeCharpy kwi -196°C)
Iingxelo zoVavanyo lwe-PMI (zonke izinto ze-alloy)
l Irekhodi Yonyango Olunzulu Lwe-Cryogenic (ubushushu, ixesha lokuntywila, imijikelo)
Iingxelo zoVavanyo lwe-Actuator (ukuba ziyasebenza)
Uluhlu lokuPakisha, i-invoyisi yoRhwebo, i-Bill of Lading, iSatifikethi seMvelaphi
Isibhengezo sokuSebenza se-l CE (DoP) sokuthunyelwa kwempahla eYurophu
10. Iingenelo zeWomic Steel kunye neFAQ - Ivalvu yeCryogenic Ball Valve (-196°C)
Kutheni kufuneka usebenzisane neWomic Steel kwiivalvu zebhola zeCryogenic?
Uluhlu olupheleleyo lobungakanani: 1/2" – 48" (DN15 – DN1200), iKlasi 150 – iKlasi 2500.
l Unyango lwe-Deep Cryogenic kwi -196°C – luqinisekisa uzinzo olulinganayo kwaye luthintela ukugqwetheka kubushushu benkonzo (kuyimfuneko ngokwe-BS 6364 kwinkonzo ye-≤ -101°C).
Ukusebenza okuqinisekisiweyo kwe-cryogenic – iivalvu eziyi-100% zivavanywe kwi--196°C nganye kwi-BS 6364 ngaphambi kokuba zithunyelwe.
Uyilo olukhuselekileyo emlilweni – isiqinisekiso se-API 607 okanye se-API 6FA siyafumaneka kuzo zonke iivalvu zebhola.
l Ukukhutshwa okuphantsi kwe-fugitive – ISO 15848-1 Class A okanye B standard packing for all valves.
l Isiqu esingashukumiyo nesingenako ukutshaya – iimpawu zokhuseleko ezisemgangathweni.
l Ukukhetha uyilo oludadayo okanye olufakwe kwi-trunnion ngokuxhomekeke kubukhulu kunye noxinzelelo.
l Ukukhetha izinto zomzimba: CF3, CF3M, CF8, CF8M, LCB, LCC, iintsimbi ezingenasici ezimbini.
l Ukukhetha izixhobo zesihlalo: PCTFE (isihlalo esiphambili esikhanyayo), RPTFE, PEEK.
Uphawu lwe-PED 2014/68/EU CE lwezixhobo zoxinzelelo zaseYurophu.
Amaxesha okukhokela akhuphisanayo: iiveki ezi-8-12 zoqwalaselo oluqhelekileyo, iiveki ezili-16-20 zoyilo oluqhelekileyo olunezimbobo ezinkulu.
Uhlolo lomntu wesithathu lwamkelwe (SGS, BV, TÜV, DNV, ABS, LR).
Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo) – Ivalvu Yebhola EneCryogenic (-196°C)
Q: Yintoni umahluko phakathi kwevalvu yebhola eqhelekileyo kunye nevalvu yebhola e-cryogenic?
A: Iivalvu zebhola ze-cryogenic zineempawu eziphambili ezininzi ezingafumanekiyo kwiivalvu eziqhelekileyo: ibhonethi ende enepleyiti yokuthontsiza ukukhusela izitywina zesiqu kumaqondo obushushu aphantsi; unyango olujulileyo lwe-cryogenic (-196°C soak) lwazo zonke izinto ukuthintela ukugqwetheka; izixhobo zesihlalo ezikhethekileyo (PCTFE, PEEK) ezigcina ukuthembeka kwetywina kumaqondo obushushu aphantsi; ukupakisha okuncinci kokukhupha umoya; kunye novavanyo oluyimfuneko lokusebenza kwe-cryogenic ngokwe-BS 6364. Iivalvu zebhola eziqhelekileyo zihlala zineebhonethi ezingolulwanga, izihlalo zepolymer eziqhelekileyo eziba buthathaka kumaqondo obushushu aphantsi, kwaye akukho vavanyo lwe-cryogenic.
Q: Ingakanani iqondo lobushushu eliphantsi lenkonzo kwiivalvu zakho zebhola ezi-cryogenic?
A: Iivalvu zethu zebhola ezisemgangathweni ze-cryogenic zilinganiswe ngenkonzo ye--196°C (ubushushu be-nitrogen engamanzi) ngokwe-BS 6364 kunye ne-MSS SP-134. Kwinkonzo ye-hydrogen engamanzi (-253°C) okanye ye-helium engamanzi (-269°C), sinikezela ngoyilo olukhethekileyo olunezixhobo eziguquliweyo kunye nezitywino. Nceda unxibelelane neqela lethu lobunjineli ngezi zicelo zobushushu obugqithisileyo.
U: Yintoni unyango olujulileyo lwe-cryogenic kwaye kutheni lufuneka?
A: Unyango olune-cryogenic enzulu yinkqubo yokupholisa izinto zevalvu ukuya kwi--196°C (i-nitrogen engamanzi) ubuncinane iiyure ezi-8, emva koko ibuyela kancinci kubushushu begumbi. Le nkqubo iguqula i-austenite egciniweyo (enokubangela utshintsho kubukhulu kubushushu obune-cryogenic) ibe yi-martensite, ikhulula uxinzelelo olushiyekileyo oluvela kwi-machining, kwaye iqinisekisa uzinzo kubushushu obusebenzayo. I-BS 6364 ifuna unyango olune-cryogenic enzulu kwiivalvu ezinamaqondo obushushu ≤ -101°C.
Q: Zeziphi izixhobo zesihlalo ozicebisayo kwinkonzo ye -196°C?
A: Kwinkonzo ye--196°C, sicebisa i-PCTFE (polychlorotrifluoroethylene) njengesixhobo esiphambili sesihlalo. I-PCTFE igcina iipropati zayo zoomatshini kwaye inika ukuvalwa okuhle kakhulu kumaqondo obushushu aqinileyo ngaphandle kokuhamba komoya obandayo. I-RPTFE (i-PTFE eqinisiweyo) ifanelekile kwi--196°C kodwa inamazinga aphezulu okuvuza. I-PEEK ingasetyenziswa kwi--196°C kodwa isetyenziswa kakhulu kwiinkonzo zobushushu obuphezulu (ukuya kuthi ga kwi-260°C) okanye kwiindawo zokusetyenziswa kwezihlalo zesinyithi.
Q: Ngaba uvavanyo lokusebenza kwe-cryogenic luyimfuneko?
A: Ngokwe-BS 6364 kunye ne-MSS SP-134, uvavanyo lokusebenza kwe-cryogenic luyimfuneko kwiivalvu ezisetyenziswa kwi-LNG nakwinkonzo ye-cryogenic. Uvavanyo kufuneka lwenziwe kwi--196°C (i-nitrogen engamanzi) ngovavanyo lwesihlalo esinomoya ophantsi emva kokuqina kobushushu. I-Womic yenza uvavanyo lokusebenza kwe-cryogenic oluyi-100% kwivalvu nganye yebhola ye-cryogenic ngaphambi kokuba ithunyelwe.
Q: Ngowuphi uqinisekiso olukhuselekileyo emlilweni olunikezelayo?
A: Sinikezela ngesiqinisekiso sokukhusela umlilo ngokwe-API 607 (kwiivalufa zebhola ezithambileyo) kunye ne-API 6FA (kwiivalufa zebhola ezifakwe isinyithi). Uvavanyo lubandakanya ukuveza ivalvu kumlilo we-650-760°C imizuzu engama-30, kulandele uvavanyo lokuvuza kwesihlalo. Uyilo lokukhusela umlilo luyimfuneko kwiisicelo ezininzi ze-LNG kunye ne-petrochemical.
Q: Ngaba nibonelela ngokupakisha ukukhutshwa komoya okuncinci okubalekayo?
A: Ewe. Zonke iivalvu zethu zebhola ezi-cryogenic zibonelelwa ngepakeji yokukhupha umoya engaphantsi kwe-fugitive evavanyelwe i-ISO 15848-1. Singakunika isiqinisekiso seKlasi A okanye seKlasi B ngokuxhomekeke kwiimfuno zakho. Ukupakisha ukukhupha umoya okungaphantsi kwe-fugitive kusemgangathweni kwiivalvu ezineebhonethi ezinde.
Q: Yintoni umahluko phakathi kwebhola edadayo kunye neevalvu zebhola ezifakwe kwi-trunnion?
A: Iivalvu zebhola ezidadayo zixhaswa yizihlalo kuphela (ibhola "iyadada" phakathi kwezihlalo). Olu yilo lusetyenziselwa ubungakanani obufikelela kwi-8" kunye noxinzelelo oluphakathi. Iivalvu zebhola ezifakwe kwi-trunnion zinebhola exhaswa ziibheringi ze-trunnion (phezulu nasezantsi), nto leyo enciphisa i-torque yokusebenza kwaye ivumela ubungakanani obukhulu kunye noxinzelelo oluphezulu. Ngokwe-API 6D, uyilo olufakwe kwi-trunnion luyimfuneko kubungakanani obuyi-≥ 2" kwinkonzo yepayipi.
Q: Ngaba ungabonelela ngeevalvu zebhola ezi-cryogenic ezihambelana ne-NACE MR0175?
A: Ewe. Kwizicelo ze-cryogenic zenkonzo emuncu (i-LNG ene-H2S okanye i-ethylene ene-H2S), sinikezela ngeevalvu zebhola ze-cryogenic ezinezixhobo ezihambelana ne-NACE MR0175 / ISO 15156. Oku kuquka uvavanyo lobunzima, ukukhethwa kwezinto ezifanelekileyo, kunye nokuthobela okubhaliweyo.
Q: Lingakanani ixesha eliqhelekileyo lokufumana iivalvu zebhola ezi-cryogenic?
A: Ixesha eliqhelekileyo lokunika amandla ziiveki ezisi-8-12 kwiindlela ezimiselweyo (ibhola edadayo, ubungakanani obuyi-≤ 8", iKlasi 150-600). Kwiivalvu ezifakwe kwi-trunnion (ubungakanani obuyi-≥ 2", ubukhulu obukhulu), ixesha lokunika amandla ziiveki ezili-12-16. Kwiivalvu ezinkulu (> 24") okanye izixhobo ezikhethekileyo, ixesha lokunika amandla ziiveki ezili-16-20. Iiodolo ezikhawulezayo zinokufumaneka ngezixa ezincinci (iiveki ezi-4-6) kunye neentlawulo zokukhawulezisa.
Q: Ngaba ninikezela nge-actuation kwiivalvu zebhola ze-cryogenic?
A: Ewe. Sinikezela ngokusebenza ngesandla nge-lever (ubukhulu ≤ 4") okanye umqhubi wegiya (ubukhulu ≥ 2"), i-pneumatic actuation (i-spring-return okanye i-double-acting), i-electric actuation (ivuliwe okanye iguqulwa), kunye ne-hydraulic actuation. Zonke ii-actuators zinobukhulu ukuze zibonelele nge-torque eyaneleyo kumaqondo obushushu aqinileyo (i-torque iyanda kumaqondo obushushu aphantsi ngenxa yokuxinana kobushushu).
Q: Ngawaphi amaxwebhu ovavanyo owanikezelayo kwivalvu nganye?
A: Sinikezela ngephakheji epheleleyo yamaxwebhu aquka: Isatifikethi sovavanyo lwe-EN 10204 Type 3.1 Mill (Uhlobo 3.2 xa luceliwe), Ingxelo yoVavanyo lwe-Hydrostatic, Ingxelo yoVavanyo lwe-Cryogenic Performance ngokwe-BS 6364 (enezinga lokuvuza kunye ne-torque), Ingxelo yoVavanyo lwe-Fugitive Emission (ukuba iyasebenza), Isatifikethi esikhuselekileyo emlilweni (ukuba siyasebenza), Iingxelo zoVavanyo lwe-PMI, Ingxelo yoVavanyo lweDimensional, iRekhodi yoNyango lwe-Deep Cryogenic, Iingxelo zoVavanyo lweZinto (kubandakanya i-Charpy impact kwi--196°C), kunye ne-CE Declaration of Performance kwiimpahla zaseYurophu.
Amava eProjekthi kunye noPhando lweTyala – iValve yeBhola yeCryogenic (-196°C)
Iprojekthi:I-LNG efumana ulwandiso lweTerminal – Jiangsu, eTshayina
Imigangatho kunye neBanga:I-BS 6364, i-MSS SP-134, i-API 6D, i-API 607 (Ikhuselekile emlilweni)
Iinkcukacha kunye nobungakanani:
Iivalvu zeBhola ezifakwe kwiTrunnion eziyi-16" (DN400), iClass 300, iCF3M Body, iPCTFE Seats – iiyunithi ezi-8 (malunga neetoni eziyi-3.2/yunithi)
Iivalvu zeBhola ezifakwe kwiTrunnion eziyi-l 12" (DN300), iClass 300, iCF3M Body, iPCTFE Seats – iiyunithi ezili-16 (malunga neetoni eziyi-2.1/yunithi)
Iivalvu zeBhola ezidadayo ezingama-l 8" (DN200), iClass 300, iCF3M Body, iPCTFE Seat – iiyunithi ezingama-24 (malunga neetoni ezingama-0.8/iyunithi)
Iivalvu zeBhola ezidadayo ezingama-l 6" (DN150), iCandelo lama-300, uMzimba weCF3M, iZitulo zePCTFE – iiyunithi ezingama-32 (malunga neetoni eziyi-0.5/iyunithi)
Iivalvu zeBhola ezidadayo ze-l 4" (DN100), iCandelo lama-300, uMzimba we-CF3M, iZitulo ze-PCTFE – iiyunithi ezingama-48 (malunga neetoni eziyi-0.3/iyunithi)
Iivalvu zeBhola ezidadayo ze-l 2" (DN50), iCandelo lama-300, uMzimba we-CF3M, iZitulo ze-PCTFE – iiyunithi ezingama-64 (malunga neetoni eziyi-0.15/iyunithi)
Isimbuku:Iiyunithi ezili-192 (malunga neetoni ezingama-28)
Ukusetyenziswa:Ukwahlulwa kokungena/ukuphuma kwe-LNG kwingalo yokugcina impahla kunye netanki yokugcina. Ubushushu benkonzo: -162°C (LNG), uxinzelelo loyilo: 5.5 MPa. Ibhonethi eyoluliweyo enepleyiti yokuthontsiza, esetyenziswa yigiya (ngesandla). Uyilo olukhuselekileyo emlilweni ngokwe-API 607, ukupakisha ukukhutshwa okuncinci okubalekayo ngokwe-ISO 15848-1 Class B.
Imingeni yoBugcisa kunye neZisombululo:
1. Ubushushu obugqithisileyo (-162°C) obufuna ukutywinwa okuthembekileyo kwe-cryogenic– Inkonzo ye-LNG kwi -162°C (ingaphantsi kwe-nitrogen engamanzi kwi -196°C) ifuna izihlalo ze-PCTFE ngenxa yeempawu zazo ezintle zokutywina ezi-cryogenic. I-Womic inike izihlalo ze-PCTFE uyilo olunamandla entwasahlobo oluqinisekisa ukuthembeka kwetywina kwimijikelo yobushushu. Zonke iivalvu ezili-192 ziphumelele uvavanyo lwe-cryogenic olunezinga lokuvuza < 0.05 cc/min nge-intshi nganye yobubanzi besihlalo.
2. Uyilo olukhuselekileyo emlilweni lwenkonzo yokukhulula iingalo ze-LNG– Iingalo zokukhulula i-LNG ziindawo ezibalulekileyo zokukhusela. Isiqinisekiso esikhuselekileyo somlilo se-API 607 esifunekayo kumthengi kuzo zonke iivalvu eziyi-16" kunye ne-12". I-Womic yenzelwe i-backup yesibini yesihlalo sesinyithi ukugcina isiciko xa kutsha. Uvavanyo olukhuselekileyo emlilweni lwenziwe kwaye lwaqinisekiswa yilabhoratri yomntu wesithathu.
3. Ukupakisha ukukhutshwa komoya okuncinci okubalekayo ukuze kuthotyelwe imiqathango yokusingqongileyo– Isitishi esikufutshane neziko labemi siyafuneka ukupakisha kwe-ISO 15848-1 Class B. I-Womic inikezele ngokupakisha i-graphite emission ephantsi ephumayo enoyilo olude lwebhonethi ukuqinisekisa ukuba ubushushu bokupakisha buhlala bungaphezulu kwe--20°C. Isatifikethi se-ISO 15848-1 Class B siyabonelelwa kuzo zonke iivalvu.
4. Unyango olujulileyo lwe-cryogenic kwi-castings ezinkulu (umzimba we-16")– Ii-castings ezinkulu ze-CF3M (umzimba we-16") zisengozini yokuhlaselwa yi-austenite egciniweyo enokubangela utshintsho kumlinganiselo we--162°C. I-Womic yenze unyango lwe-cryogenic olujikelezayo kathathu (ukuntywila kwi--196°C, iiyure ezili-12 ngomjikelo ngamnye) kunye nokufudumala okuphakathi. Ukuhlolwa kwakhona komlinganiselo kuqinisekisile ukuba akukho siphazamiso emva konyango.
5. Uyilo olufakwe kwi-trunnion lweevalvu eziyi-16" kunye ne-12"– Ngokwe-API 6D, uyilo olufakelwe kwi-trunnion luyimfuneko kwiisayizi ≥ 2" kwinkonzo yepayipi. I-Womic inika iivalvu zebhola ezifakelwe kwi-trunnion eziphindwe kabini kunye ne-bleed (DBB) ezine-cavity pressure relief (umoya ophumayo kwisihlalo esingaphezulu) ukuthintela uxinzelelo olugqithisileyo kwi-liquid expansion kwi-cavity evaliweyo.
6. Ukuhlolwa komntu wesithathu yi-TÜV– Umthengi kufuneka afumane uvavanyo lwe-TÜV kuzo zonke iivalvu ezili-192. I-Womic idibene nomhloli we-TÜV wovavanyo lwe-hydrostatic, uvavanyo lokusebenza kwe-cryogenic (-162°C liquid nitrogen), kunye novavanyo lokukhupha umoya olubalekayo. I-TÜV ikhuphe izatifikethi zomntu ngamnye zevalvu nganye kwiintsuku ezili-14 emva kokugqitywa kovavanyo.
7. Ukuhanjiswa ngexesha elifanelekileyo kwishedyuli yokwandiswa kwesiphelo sendlela– Ukwandiswa kwesiphelo sendlela bekuneshedyuli encinci kungekho buffer. IWomic ihambise zonke iivalvu ezili-192 kwiimpahla ezi-4 kwiiveki ezili-12, kwaye ukuthunyelwa ngakunye kuqulethe iivalvu ezifunekayo kwisigaba esilandelayo sokufakelwa. Ukuthunyelwa kokuqala (iivalvu eziyi-16" kunye ne-12") kufikile kwiiveki ezi-4 emva kokuqinisekiswa kweodolo – ngaphambi kwexesha elibekiweyo. Akukho kulibaziseka ekwakheni.
Isiphumo:Ukwandiswa kwesiphelo se-LNG efumana i-terminal kwaqaliswa ngempumelelo ngo-2022. Zonke iivalvu zebhola ze-cryogenic ezili-192 zisebenze kwi--162°C kangangeminyaka engaphezu kwemi-2 ngaphandle kweziganeko zokugcinwa. Ingcali yeevalvu zomthengi yathi: "Iivalvu ze-cryogenic zaseWomic zihlala ziphumelela ngaphezu kwezo zabathengisi baseYurophu abaziwayo ngokwemigaqo yokuqina kwe-torque kunye nokuthembeka kwetywina. Sinciphise ishedyuli yethu yokugcinwa ukusuka kwixesha lonyaka ukuya kwiinyanga ezili-18." Umthengi ukhuphe isivumelwano seminyaka emi-5 sazo zonke iimfuno zevalvu ze-cryogenic zexesha elizayo.
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I-Womic Steel – Iqabane lakho elithembekileyo leevalvu zebhola ze-cryogenic (-196°C) zeeterminal ze-LNG, iiyunithi zokwahlula umoya, izityalo ze-ethylene, kunye nenkonzo yegesi yemizi-mveliso kwihlabathi liphela.
Ixesha leposi: Juni-18-2026