I-Womic Steel inikeza amanani asezingeni eliphezulu futhi ancintisanayo e-cryogenic ball valve, i--196℃ low temperature ball valve, i-LNG ball valve, i-cryogenic ball valve ephephile emlilweni. Isitifiketi se-Mill EN 10204 3.1/3.2, ukuhlolwa kwamanzi, ukuhlolwa kokusebenza kwe-cryogenic, ukwelashwa kwe-cryogenic okujulile, umklamo wokukhipha ukungcola okuphansi, umklamo ophephile emlilweni, i-anti-static, i-blow-off stem, i-bonnet ende ene-drip plate. Ukunikezwa ngqo kwasefektri kwamaphrojekthi ezimboni e-LNG kanye ne-cryogenic emhlabeni jikelele.
1. Insimbi Yomdabu: Amakhono Okukhiqiza kanye Namandla Enkampani
I-Womic Steel Group ingumkhiqizi ovelele kanye nomhlinzeki womhlaba wonke wama-valve e-cryogenic onolwazi olungaphezu kweminyaka engama-20 ekukhiqizeni ama-valve asebenza kahle kakhulu ngezinsizakalo zokushisa okuphansi kakhulu. Isikhungo sethu sokukhiqiza esisezingeni eliphezulu sihlanganisa amakhono okwakha, okugaya, okuhlanganisa, kanye nokuhlola:
l Umugqa Wokukhiqiza we-Cryogenic Valve:Umugqa wokukhiqiza amavalvu e-cryogenic anikezelwe onezikhungo zomshini we-CNC, ama-lathe aqondile, kanye nemishini yokuhlola i-cryogenic ekhethekile ekwazi ukuhlola amavalvu afinyelela ku--196°C kusetshenziswa i-nitrogen ewuketshezi. Umthamo wokukhiqiza waminyaka yonke odlula amavalvu ebhola e-cryogenic angu-20,000.
l Isikhungo Sokwelapha I-Deep Cryogenic:Isithando sokushisa esingaphakathi (-196°C) sokuqeda ukucindezeleka kwazo zonke izingxenye eziqukethe ukucindezeleka, ukuqinisekisa ukuzinza kobukhulu kanye nokuvimbela ukuphambuka emazingeni okushisa okusebenza. Izingxenye zicwiliswa okungenani amahora angu-8 ngokwezidingo ze-BS 6364.
Zonke izivalo zebhola ze-cryogenic zenzelwe:
l Ibhonethi enwetshiwe enepuleti lokuconsa ukuze kugcinwe ukupakisha kwesiqu emazingeni okushisa asebenzayo
Idivayisi yokumisa engaguquki nge-API 608 kanye ne-BS 5351
l Umklamo wesiqu ovikela ukuqhuma
l Umklamo ophephile emlilweni nge-API 607 / ISO 10497
l Umhlangano wokupakisha wokukhishwa komoya okuphansi kwe-ISO 15848-1 (Isigaba A noma B)
l Ukuvimba kabili kanye nokukwazi ukuphuma kwegazi (ongakukhetha)
l Ukukhululeka kwengcindezi yomgodi (ama-valve afakwe i-trunnion)
Izitifiketi Zekhwalithi Nokuhambisana Nemithetho:
Isitifiketi se-ISO 9001:2015
l PED 2014/68/EU (CE Marking) yemishini yokucindezela
Ilayisensi ye-Monogram ye-API 6D / API 608 l
Isitifiketi se-l API 607 / API 6FA esiphephile emlilweni
Isitifiketi Sokukhishwa Komoya Okuphansi kwe-ISO 15848-1
Isitifiketi se-EN 10204 3.2 esinokuqinisekiswa komuntu wesithathu (TÜV, BV, SGS, LR)
Ukuhlolwa Kweqembu Lesithathu (TPI) okuvunyelwe yi-SGS, BV, ABS, DNV, TÜV, Lloyd's Register
Ukuhambisana kwe-NACE MR0175 / ISO 15156 kwezinhlelo zokusebenza ze-cryogenic zesevisi emuncu
Isitifiketi se-ATEX siyatholakala uma kuceliwe ngezimo eziqhumayo
Ukuzivumelanisa Nokuguquguquka Kokukhiqiza Kwama-Cryogenic Ball Valves:
Ibhola Elintantayo: 1/2" – 8" (DN15 – DN200), Isigaba 150 – Isigaba 1500
Ibhola Elifakwe ku-Trunnion: 2" – 48" (DN50 – DN1200), Isigaba 150 – Isigaba 2500
Ukuxhumeka Kokuphela Oku-l: Okune-Flanged (RF, RTJ), Ukushintshwa Kwezinqe (BW), Ukushintshwa Kwesokhethi (SW), Okune-Threaded (NPT)
Ukusebenza: Isandla (i-lever, igiya), i-Pneumatic, i-Electric, i-Hydraulic
l Umthamo wokukhiqiza wanyanga zonke: amayunithi ayi-1,500-2,000 kuye ngobukhulu kanye nobunzima
Ukuqashelwa Komhlaba Wonke:I-Womic Steel ingumhlinzeki othembekile kubakhi be-EPC bomhlaba wonke kanye nabasebenzi be-LNG okuhlanganisa i-Technip Energies, i-McDermott, i-Bechtel, ne-Sinopec, ekhonza amazwe angaphezu kuka-40 emikhakheni ye-LNG, i-petrochemical, kanye negesi yezimboni.
2. I-Cryogenic Ball Valve: Ukwakheka Kwezinto Nezincazelo Eziyinhloko
Amavalvu ebhola acijile asebenza emazingeni okushisa aphansi njengo-196°C, lapho izinto ezijwayelekile ziba buthakathaka khona futhi izinhlelo zokuvala ezijwayelekile ziyahluleka ngenxa yokufinyela kokushisa. Amavalvu ethu ebhola acijile aklanyelwe ngqo lezi zimo ezimbi kakhulu.
Izici Eziyinhloko Zokuklama Zesevisi -196°C:
Ibhonethi Enwetshiwe Enepuleti Lokudonsa:Ibhonethi yeluliwe ukuqinisekisa ukuthi indawo yokupakisha (iziqu ze-stem) ihlala ekushiseni okungaphezu kokubanda, ivimbela ukwakheka kweqhwa futhi igcine ubuqotho be-seal. Ipuleti lokuconsa livimbela umswakama ohlanganisiwe ukuthi ungaconsi emzimbeni we-insulation noma we-valve.
Ukwelashwa Okujulile Kwe-Cryogenic:Zonke izingxenye eziqukethe ingcindezi (umzimba, ibhonethi, ibhola, isiqu) ziphathwa ngokwelashwa okujulile kwe-cryogenic ku--196°C okungenani amahora ayi-8 (noma imijikelezo eminingi) ukuze kuguqulwe i-austenite egciniwe, kuncishiswe ukucindezeleka okusele, futhi kuqinisekiswe ukuzinza kobukhulu ekushiseni kwesevisi.
Izinto Ezikhethekile Zesevisi Ye-Cryogenic:
| Ingxenye | Izinketho Zezinto Ezibalulekile | Ibanga Lokushisa | Izici Eziyinhloko |
| Umzimba/Ibhonethi | I-ASTM A351 CF3/CF3M (304L/316L SS) | -196°C kuya ku-+300°C | Ukuzinza kwe-Austenitic emazingeni okushisa aphansi |
| Umzimba/Ibhonethi | I-ASTM A352 LCB/LCC (Insimbi Yekhabhoni Enesimo Esiphansi) | -46°C kuya ku-+300°C | Ukuze uthole isevisi encane kakhulu ye-cryogenic |
| Umzimba/Ibhonethi | I-ASTM A182 F304L/F316L (Eyenziwe ngobumba) | -196°C kuya ku-+300°C | Ubuqotho obuphezulu, osayizi abancane |
| Ibhola | I-ASTM A182 F304/F316 | -196°C kuya ku-+300°C | Ihlolwe i-PT/UT engu-100% |
| Ibhola | I-ASTM A351 CF3/CF3M (Abalingisi) | -196°C kuya ku-+300°C | Osayizi abakhulu |
| Isiqu | I-ASTM A182 F304L/F316L | -196°C kuya ku-+300°C | Amandla anwetshiwe emazingeni okushisa aphansi |
| Isiqu | I-ASTM A182 F XM-19 | -196°C kuya ku-+300°C | Amandla aphezulu, ukumelana nokugqokwa okuphezulu |
| Isihlalo Sevalvu | I-PCTFE (i-Polychlorotrifluoroethylene) | -196°C kuya ku-+150°C | Izinga lokuvuza eliphansi kakhulu, uphawu oluhle kakhulu lwe-cryogenic |
| Isihlalo Sevalvu | I-RPTFE (i-PTFE Eqinisiwe) | -196°C kuya ku-+200°C | Ukuvala okuhle, ikhono lokushisa eliphezulu |
| Isihlalo Sevalvu | UKUBHEKA | -196°C kuya ku-+260°C | Amandla aphezulu, inketho yesihlalo sensimbi |
| Izimbozo Zomzimba | Inxeba Elijikelezayo (iGraphite + SS) | -196°C kuya ku-+400°C | Isiciko esiphephile emlilweni nesithembekile |
| Ukupakisha Isiqu | I-Graphite Ekhipha Umoya Ophansi Osabalele | -196°C kuya ku-+400°C | Isitifiketi se-ISO 15848 |
| Ukubhoboza | I-ASTM A320 Gr.L7 / A194 Gr.7 | Insimbi yekhabhoni enezinga lokushisa eliphansi | Okomzimba we-LCB |
| Ukubhoboza | I-ASTM A320 Gr.B8 CL.2 / A194 Gr.8 | -196°C kuya ku-+400°C | Okomzimba we-SS |
| I-Anti-static | Intwasahlobo/ibhola le-alloy yethusi | – | Ibhola elibekwe phansi emzimbeni |
Ukuqinisekiswa Kwezinto Ezibalulekile:
l 100% PMI (Ukuhlonza Izinto Ezinhle) kuzo zonke izingxenye ze-alloy
Ukuhlolwa komthelela we-Charpy V-notch ku--196°C ukuze kuqinisekiswe izinto zomzimba/ibhonethi (ngokwe-BS 6364)
Ukuhlolwa kokuqina kwezinhlelo zokusebenza zesevisi emuncu (ngokwe-NACE MR0175)
3. Ukuhambisana Nobubanzi Nokulinganisa Kwezindinganiso
| Into | Imininingwane |
| Izinga Lokuklama | I-BS 6364, i-MSS SP-134, i-API 608, i-API 6D, i-ASME B16.34 |
| Uhlobo | Ibhola Elintantayo (≤ 8") / Ibhola Elifakwe Ku-Trunnion (≥ 2") |
| Ububanzi Bosayizi | 1/2" – 48" (DN15 – DN1200) |
| Isilinganiso Sokucindezela | Isigaba 150 - Isigaba 2500 (PN20 - PN420) |
| Ibanga Lokushisa | -196°C kuya ku-+300°C (kuye ngokuthi izinto zisetshenziswa kanjani) |
| Ukuxhumana Okuphelile | 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 Nobuso | I-ASME B16.10, i-API 6D, noma ngokwencazelo yekhasimende ngalinye |
| Iphephile emlilweni | I-API 607 (isihlalo esithambile), i-API 6FA (isihlalo sensimbi) |
| Ukukhishwa Kokubaleka | I-ISO 15848-1 (Isigaba A noma B) |
| I-Anti-static | Ngokwe-API 608, BS 5351 |
| Ukubhoboza | I-ASME B16.34, i-ASTM A320/A194 |
| Ukuhlolwa kwe-Cryogenic | BS 6364, MSS SP-134 |
| Ukuhlolwa Kwamanzi | I-API 598, ISO 5208 |
| Ukusebenza | I-Lever, Igiya (Eyenziwe ngesandla), I-Pneumatic, Ugesi, I-Hydraulic |
4. Ukucushwa Okutholakalayo – I-Cryogenic Ball Valve (-196°C)
| Usayizi | Isigaba Sokucindezela | Izinto Zomzimba | Izinto Zesihlalo | Qeda Uxhumano | Ukusebenza | Isicelo Esijwayelekile |
| 1/2" – 2" | CL150-1500 | A182 F304L/F316L | I-PCTFE | I-SW/NPT/BW | I-Lever | Ukufakwa kwezinsimbi, imigqa yokulinganisa |
| 2" – 8" | CL150-1500 | A351 CF3/CF3M | I-PCTFE/RPTFE | I-Flange/BW | Ilever/Igiya | Isitshalo se-LNG, amapayipi e-ASU |
| 2" – 8" | CL150-1500 | I-A352 LCB/LCC | I-PCTFE/RPTFE | I-Flange/BW | Imishini | Amatheminali okwamukela i-LNG |
| 6" – 24" | CL150-600 | A351 CF3/CF3M | I-PCTFE/I-PEEK | I-Flange/BW | Imishini | Imigqa yokudlulisa ye-LNG eyinhloko |
| 6" – 24" | CL150-600 | I-A352 LCB/LCC | I-PCTFE | I-Flange/BW | Imishini | Isevisi yensimbi yekhabhoni enezinga lokushisa eliphansi |
| 12" – 42" | CL150-300 | A351 CF3/CF3M | I-PCTFE | I-Flange/BW | Imishini/Ugesi | Indawo yokugcina ithangi le-LNG |
| 2" – 48" | CL150-2500 | A351 CF3M | I-PCTFE/RPTFE | I-BW kuphela | Imishini/Ugesi | I-cryogenic yokucindezela okuphezulu |
Ukucushwa okwenziwe ngokwezifiso ngaphandle kwalezi zigaba kuyatholakala uma kuceliwe. Umklamo ofakwe ku-trunnion uyadingeka kumasayizi angu-≥ 2" nge-API 6D ngayinye, noma ekusetshenzisweni komfutho ophezulu/i-torque ephezulu.
Izici Eziyinhloko Zokuklama - Ibhola Elintantayo (Osayizi ≤ 8"):
l Ukwakhiwa komzimba onezingcezu ezimbili noma ezinezingcezu ezimbili
l Umklamo wesihlalo esinikwe amandla entwasahlobo
l I-torque yokusebenza ephansi
l Indawo yokungena ephezulu noma eseceleni iyatholakala
Izici Eziyinhloko Zokuklama - Okufakwe ku-Trunnion (Osayizi ≥ 2"):
Ibhola elisekelwe ngama-trunnion bearings ukuze kube nomfutho ophezulu
l Umklamo wesihlalo esithwele intwasahlobo (ukuvalwa kwesihlalo esingezansi)
l Ukukhululeka kwengcindezi yomgodi (isihlalo esiphezulu noma umoya womzimba)
l I-torque yokusebenza ephansi kungakhathaliseki ukuthi ingcindezi ingakanani
l Ukuvimba kabili kanye nokukwazi ukuphuma kwegazi
l Umklamo wokungena phezulu noma ohlangothini
5. Izindinganiso Ezivamile Zama-Cryogenic Ball Valve
| Okujwayelekile | Incazelo | Isicelo |
| I-BS 6364 | Imininingwane yama-valve e-cryogenic e-LNG kanye nensizakalo yokushisa okuphansi | Izinga lokuklama eliyinhloko lensizakalo ye-cryogenic |
| I-MSS SP-134 | Izinga elijwayelekile lama-valve esevisi ye-cryogenic | Izinga elilinganayo lase-US lama-valve e-cryogenic |
| I-API 608 | Amavalvu ebhola lensimbi - iziphetho ezigobile nezinqe zokushisela | Izinga lokuklama i-ball valve |
| I-API 6D | Imininingwane yama-valve epayipi kanye namapayipi | Izinga le-valve yebhola lepayipi |
| I-ASME B16.34 | Amavalvu - acijile, afakwe intambo, kanye nesiphetho sokushisela | Isisekelo sesilinganiso sokucindezela nokushisa |
| I-API 607 | Ukuhlolwa komlilo kwamavalvu okujika ikota athambile | Isitifiketi esiphephile emlilweni |
| I-API 6FA | Ukuhlolwa komlilo kwama-valve | Isitifiketi esiphephile emlilweni sama-valve e-API 6D |
| I-ISO 15848-1 | Ama-valve ezimboni - izinqubo zokulinganisa nokuhlola ukukhishwa okubalekayo | Isitifiketi sokukhishwa komoya okuphansi okusabalele |
| I-ASME B16.10 | Ubukhulu bobuso nobuso kanye nobokuphela | Ubukhulu bokufakwa obujwayelekile |
| I-API 598 | Ukuhlolwa nokuhlolwa kwevalvu | Izindlela zokwamukelwa kokuhlolwa |
| I-NACE MR0175 / ISO 15156 | Izimboni zikaphethiloli negesi yemvelo - izinto zokwakha izindawo ze-H2S | Ukuthobela imithetho yesevisi ethambile |
Ukusetshenziswa:Ama-terminal amukela i-LNG, izitshalo zokuncibilikisa i-LNG, izingalo zokulayisha ze-LNG, amapayipi ethangi lokugcina i-LNG, amayunithi okuhlukanisa umoya (i-ASU), amapayipi e-nitrogen/oxygen ewuketshezi, isevisi ye-hydrogen ewuketshezi, izitshalo ze-ethylene ne-propylene, isevisi ye-methanol yokushisa okuphansi, ukucutshungulwa kwegesi ye-cryogenic, isevisi ye-helium ewuketshezi.
6. Inqubo Yokukhiqiza – I-Cryogenic Ball Valve (-196°C)
I-Womic Steel isebenzisa izinqubo ezikhethekile zokukhiqiza zama-valve ebhola e-cryogenic ngokugcizelela ekuqinisekisweni kwezinto ezibonakalayo, ukwelashwa okujulile kwe-cryogenic, kanye nokuqinisekiswa kokusebenza kwe-cryogenic.
Isinyathelo 1: Ukuhlolwa Kwezinto Ezingavuthiwe kanye ne-PMI
l Ukuthungwa/ukuthungwa komzimba kanye nebhonethi okuqinisekiswe ngokuhlaziywa kwamakhemikhali kanye ne-PMI
Ukuhlolwa komthelela we-Charpy ku--196°C nge-BS 6364 ukuqinisekisa ukuqina kokushisa okuphansi
l 100% PT (Penetrant Testing) kanye ne-UT (Ultrasonic Testing) kuma-castings amaphutha
Ukuhlolwa kokuqina kwezinhlelo zokusebenza zesevisi emuncu
Isinyathelo 2: Umshini
l Ukucutshungulwa kwe-CNC komzimba, i-bonnet, ibhola, kanye nesiqu kuya ekubekezeleleni okunembile
l Ukugaya okukhethekile kwezindawo zokuvala ibhola nezihlalo ukuze kufakwe uphawu oluqinile
l Ukuphela kwendawo yokuvala: Ra ≤ 0.4μm (ukuphela kwesibuko)
l Umshini womsele ophikisana ne-static, umsele oqinile we-stem ongenakuphikiswa, kanye nokukhululeka komgodi
Isinyathelo 3: Ukwelashwa Okujulile Kwe-Cryogenic (Okubalulekile Ngesevisi Ye--196°C)
Zonke izingxenye ezibalulekile (umzimba, ibhonethi, ibhola, isiqu) ziphathwa ngendlela ejulile ye-cryogenic ku--196°C (ukucwiliswa kwe-nitrogen ewuketshezi)
l Isikhathi esincane sokucwilisa: amahora angu-8 nge-BS 6364 (ngokuvamile amahora angu-8-12)
l imijikelezo eminingi (kuze kufike ku-3 imijikelezo) yokwenziwa okukhulu noma okuyinkimbinkimbi
l Inhloso: Guqula i-austenite egciniwe ibe yi-martensite, unciphise ukucindezeleka okusele, uqinisekise ukuzinza okulinganayo ekushiseni kwesevisi
l Kulandelwa ukufudumala ukuze kubuyiselwe ukuguquguquka (kwamamaki ensimbi engagqwali ye-martensitic)
Isinyathelo 4: Ukuhlanganisa
l Izingxenye zihlanziwe ukuze kususwe noma yimaphi amafutha, amafutha, noma ukungcola
l Konke ukuhlanganiswa kwenziwa endaweni ehlanzekile yegumbi
l Ukugcoba ngamafutha okugcoba ahambisana ne-cryogenic (angenawo ama-hydrocarbon)
l Ukufakwa kwesihlalo kanye nokulungiswa komthwalo wangaphambi kokulayisha (izihlalo ezinikwe amandla entwasahlobo)
l Ukufakwa kwesivalo sesiqu kanye nokupakisha okunokupakisha okuphumayo okuphansi
l Ukuhlanganiswa kwebhonethi enwetshiwe enepuleti lokuconsa elibekwe ngaphezu komugqa wokufaka
Isinyathelo 5: Ukuhlolwa Kwangaphambi Kokuhlolwa
l Ukuqinisekiswa kobukhulu bazo zonke izilinganiso ezibalulekile
l Ukuqinisekiswa kwe-torque ye-bolting (ngokwe-ASME B16.34)
l Ukuhlolwa kwesihlalo somoya (umfutho ophansi) ngaphambi kokuhlolwa kwe-hydrostatic
Isinyathelo 6: Ukuhlolwa Kwe-Hydrostatic (Nge-API 598)
Ukuhlolwa kweShell: 1.5 × ingcindezi yokuklama okungenani imizuzwana eyi-15, akukho ukuvuza okubonakalayo
Ukuhlolwa kwesihlalo: 1.1 × umfutho womklamo, ukuhlolwa kwesihlalo somfutho ophansi (0.5-0.7 MPa), amazinga okuvuza amukelekayo nge-API 598 ngayinye
Akukho ukuvuza okubonakalayo ezintweni zokuvala
Isinyathelo 7: Ukuhlolwa Kokusebenza Kwe-Cryogenic (Okubalulekile Kwesevisi Ye--196°C nge-BS 6364)
l Ivalvu ecwiliswe ku-nitrogen ewuketshezi (-196°C) okungenani amahora ama-2
l Ukuhlolwa kwesihlalo somoya esinomfutho ophansi (0.6 MPa) ekushiseni
l Ukuvuza kwesihlalo kulinganisiwe: ≤ 0.1 cc/min nge-intshi ngayinye yobubanzi besihlalo
l Ukulinganisa i-torque ekushiseni kwe-cryogenic
Ukuhlolwa komjikelezo: Ubuncane bemijikelezo eyi-10 egcwele ekushiseni
l Akukho monakalo noma ukuhlanekezela okuvunyelwe
Isinyathelo 8: Ukuhlolwa Kokukhishwa Komoya Ophumayo (Ngokusho kwe-ISO 15848-1)
Ama-valve anesimbozo esincane sokukhishwa komoya esivivinywe ngokwe-ISO 15848-1
Ukuvuza okulinganiswe ku-helium leak detector
Ukwamukelwa: Isigaba A noma B kuye ngesidingo samakhasimende
Isinyathelo 9: Ukuhlolwa Okuphephile Emlilweni (Ngokusho kwe-API 607 noma i-API 6FA - Uma Kucelwa)
Ivalvu evezwe emlilweni ongu-650-760°C imizuzu engama-30
Ukuhlolwa kokuvuza kwesihlalo ngemva komlilo nokupholisa
Ukuhlolwa okubonakalayo komonakalo
Isinyathelo 10: Ukuhlolwa Kokugcina Nokumaka
Ukuhlolwa okubonakalayo kokukhubazeka kobuso, ubuqotho bokumboza, ukufundeka kokuphawula
l Ukumaka okuhlala njalo ngokwe-BS 6364 / API 6D: umenzi, usayizi, isigaba sokucindezela, izinto ezibonakalayo, isilinganiso sokushisa, isitembu sokuhlola, inombolo ye-serial
Ukulungiselela nokubuyekeza amadokhumenti
7. Izinqubo Zokulawula Ikhwalithi Nokuhlola ze-Cryogenic Ball Valve (-196°C)
| Isiteji | Indlela Yokuhlola | Inhloso |
| Izinto Ezingavuthiwe (Ukubumba/Ukwakha) | I-PMI (Ukuhlonza Izinto Ezinhle) | Qinisekisa ibanga le-alloy kanye ne-chemistry |
| Impahla eluhlaza | Ukuhlolwa Komthelela weCharpy ku--196°C | Qinisekisa ukuqina kwezinga lokushisa eliphansi ngokwe-BS 6364 |
| Impahla eluhlaza | I-PT/UT (Ukuhlolwa Kokuphonsa) | Thola amaphutha okuphonsa, ukufakwa, kanye ne-porosity |
| Umshini | Ukuhlolwa Kobukhulu | Qinisekisa ubukhulu obubalulekile ngokwe-ASME B16.34 ngayinye |
| Ngemva Kokwelashwa Okujulile Kwe-Cryogenic | Ukuhlolwa Kabusha Kobukhulu | Qinisekisa ukuzinza kobukhulu ngemva kokwelashwa |
| Umhlangano | Ukuhlolwa Okubonakalayo | Hlola ukungcola, ukuhlanganiswa okufanele |
| Ngaphambi Kokuhlolwa | Ukuhlolwa Kwesihlalo Somoya (Ukucindezela Okuphansi) | Qinisekisa ubuqotho besivalo sokuqala |
| I-Valve Eqediwe | Ukuhlolwa kwegobolondo elimanzi | Ubuqotho bengcindezi nge-API ngayinye 598 |
| I-Valve Eqediwe | Ukuhlolwa Kwesihlalo Esimanzi | Ubuqotho besivalo sesihlalo nge-API 598 ngayinye |
| I-Valve Eqediwe | Ukuhlolwa Kokusebenza Kwe-Cryogenic nge-BS 6364 ngayinye | -196°C ukuqinisekiswa kokusebenza (okubalulekile) |
| I-Valve Eqediwe | Ukuhlolwa Kokukhishwa Komoya Obalekile (ngokwe-ISO 15848-1) | Ubuqotho besivalo sokuvuza okuphansi |
| I-Valve Eqediwe | Ukuhlolwa Okuphephile Emlilweni (API 607/API 6FA - uma ucela) | Isitifiketi esiphephile emlilweni |
| I-Valve Eqediwe | Ukuhlolwa kwe-Torque | Qinisekisa i-torque yokusebenza ekushiseni kwe-cryogenic |
| I-Valve Eqediwe | Ukuhlolwa Okubonakalayo Nokulinganayo | Ukuqinisekiswa kwekhwalithi yokugcina |
| I-Valve Eqediwe | Ukuqinisekiswa Kokumaka | Qinisekisa ukuthi uphawu oluhlala njalo ngokwezindinganiso |
Ukuhlolwa Ongakukhetha Kwezinhlelo Zokusebenza Ezibucayi Ze-Cryogenic:
Ukuhlolwa Kokuvuza Kwe-Helium (i-mass spectrometer) kwezinsizakalo ezibalulekile
l Ukuhlolwa kwesihlalo segesi esinomfutho ophezulu (nge-API 6D ngayinye)
l Ukuhlolwa kokuphila komjikelezo (kufika kumjikelezo ongu-500 ekushiseni kwe-cryogenic)
l NDT (RT/UT) yokuhlolwa kwe-x-ray
Ukuhambisana kwe-ATEX kwezindawo eziqhumayo
Ukuhambisana kwe-NACE MR0175 kwensizakalo emuncu
Ukuhlolwa komthelela we-Charpy ezingxenyeni zangempela (hhayi nje amakhuphoni okuhlola)
8. Izicelo Eziyinhloko – I-Cryogenic Ball Valve (-196°C)
l Amatheminali Okwamukela i-LNG:I-LNG engenisiwe evela kubathwali ingena emathangini okugcina impahla ngezingalo zokukhulula impahla, ezilawulwa ngama-valve ebhola e-cryogenic. I-terminal evamile enkulu ye-LNG isebenzisa ama-valve ebhola e-cryogenic angu-300-500 ukuze ikhulule impahla, igcine impahla, futhi ithumele impahla ngaphandle. Ama-valve ethu ahambisana ne-BS 6364 kanye ne-MSS SP-134 yesevisi ye-LNG.
l Izitshalo Zokwenza Uketshezi lwe-LNG:Igesi yemvelo ipholiswa ku--162°C ukuze kuncibilike. Amavalvu ebhola aqinile alawula ukugeleza ngokusebenzisa ama-heat exchanger, ama-separator, kanye namakholomu okuhlukaniswa. Lawa mavalvu kumele agcine ubuqotho besivalo phakathi kwezinkulungwane zemijikelezo yokushisa.
l Izingalo Zokulayisha Zesithwali se-LNG:Ngesikhathi sokulayisha kusuka ku-terminal kuya ku-LNG carrier, ama-valve ebhola e-cryogenic ayahlukanisa futhi alawule ukugeleza. Umklamo ophephile emlilweni (API 607) uyimpoqo ekufakweni kwezingalo zokulayisha.
l Amayunithi Okuhlukanisa Umoya (i-ASU):I-nitrogen ewuketshezi (-196°C), i-oxygen ewuketshezi (-183°C), kanye ne-argon ewuketshezi (-186°C). Ama-valve ebhola e-cryogenic alawula ukukhishwa nokugcinwa komkhiqizo.
l Isevisi ye-Liquid Hydrogen:I-hydrogen ewuketshezi igcinwa ku--253°C, idinga ama-valve akhethekile e-cryogenic. Ukuze kusetshenziswe kuleli zinga lokushisa elibi kakhulu, sincoma umzimba wensimbi engagqwali we-austenitic onezinhlelo zokuvala ezikhethekile.
l Izitshalo ze-Ethylene ne-Propylene:Ukusetshenziswa kwezinga lokushisa eliphansi kusuka ku--40°C kuya ku--104°C. Ama-valve ebhola e-cryogenic ajwayelekile ezingxenyeni ezibandayo ze-ethylene kanye nezifunda zokuqandisa ze-propylene.
l Isevisi ye-Methanol Yokushisa Okuphansi:Izitshalo ze-Methanol ezinezingxenye zokushisa okuphansi (-20°C kuya ku-40°C) zidinga ama-valve e-cryogenic ukuze zisebenze ngokwethembeka.
l Ukucubungula Igesi E-Cryogenic:Ukukhishwa kwe-NGL (uketshezi lwegesi yemvelo) lapho igesi ibanda khona ukuze kuhlukaniswe i-ethane, i-propane, ne-butane. Ama-valve ebhola e-cryogenic asetshenziswa kuma-separator abandayo kanye nemigqa ephezulu ye-de-ethanizer.
l Isevisi ye-Liquid Helium:I-helium ewuketshezi ku--269°C idinga amavalvu akhethekile e-cryogenic anezihlalo ze-PCTFE noma ze-ceramic. Iyatholakala uma iceliwe.
l I-Nuclear kanye ne-Aerospace:Ukuphathwa koketshezi oluyi-cryogenic ezindaweni zokuqhuba amarokhethi kanye nezindawo zokucwaninga ngenuzi.
9. Ukupakisha Nokuthumela – I-Cryogenic Ball Valve (-196°C)
Ukupakisha:
l Isivikelo:Wonke ama-valve asongwe ngephepha lokuvimbela ukugqwala noma ngephepha le-VCI (Vapor Corrosion Inhibitor). Ama-Flange kanye nokuxhumeka kokuphela okumbozwe ngama-cap epulasitiki noma ama-flange ensimbi angabonisi.
l Ukuvikelwa Kokuphela:Izivalo zepulasitiki zeziphetho ze-SW/NPT; izivalo zensimbi ezingaboni ezinama-gasket eziphetho ezifakwe i-flanged (RF noma i-RTJ). Iziphetho zokushisela izinqe zivikelwe ngezivalo zepulasitiki noma zensimbi.
l Ukuvikelwa kwe-Actuator:Abaqhubi begiya noma ama-actuator avikelwe ngezembozo zepulasitiki kanye ne-foam padding.
l Amabhokisi Okhuni:Kuma-valve amancane (≤ 8"), amayunithi ngamanye noma amaningi apakishwe emabhokisini aqinile enziwe ngokhuni ane-foam padding. Amabhokisi e-plywood asezingeni lokuthumela ngaphandle anezibambo zamakhona.
l Ama-Cradle Ensimbi:Kumavalvu amakhulu (> 8") noma amavalvu asindayo, ama-cradle ensimbi ngamanye anezisekeli ezigobile ukuze kuvinjelwe umonakalo ngesikhathi sokuthuthwa. Amavalvu aqiniswe ngebholdi e-cradle.
l I-Desiccant:Izikhwama ze-silica gel desiccant ezifakwa ngaphakathi kwamabhokisi ukuze zimunce umswakama futhi zivimbele ukugqwala.
Ukuthunyelwa:
l Indlela yokuhamba:Ukuthunyelwa kwempahla emoyeni okujwayelekile kwamavalvu amancane aphuthumayo; ukuthunyelwa olwandle kwamavalvu amakhulu kanye nama-oda amaningi; ukuthunyelwa kwephrojekthi kwamavalvu amakhulu asindayo.
l Ukufakwa kweziqukathi:Amavalvu amancane afakwe emaphethini futhi afakwe ezitsheni; amavalvu amakhulu ezitsheni ezisicaba noma ezitsheni ezivulekile eziphezulu.
l I-break-bulk:Amavalvu amakhulu kakhulu noma asindayo (> 48" noma > 5 amathani) athunyelwa ngamanye emikhunjini ephukile.
l Ukulebula:Ibhokisi ngalinye noma isisekelo esibhalwe ngenombolo yethegi yevalvu, usayizi, isigaba sokucindezela, izinto, inombolo yochungechunge, kanye nemiyalelo yokuphatha. Amalebula akhethekile okubonisa isevisi ye-cryogenic.
l Imibhalo:I-MTC ephelele (EN 10204 Uhlobo 3.1/3.2), umbiko wokuhlolwa kwe-hydrostatic, umbiko wokuhlolwa kokusebenza kwe-cryogenic ngokwe-BS 6364, umbiko wokuhlolwa kokukhishwa komoya okubalekayo, isitifiketi esiphephile emlilweni (uma sikhona), umbiko wobukhulu, uhlu lokupakisha, i-invoyisi yezentengiselwano, i-bill of lading, isitifiketi semvelaphi, i-CE Declaration of Performance.
Imibhalo Ehlinzekwa Ngokuthunyelwa Ngakunye:
Isitifiketi Sokuhlolwa Komshini Wokugaya (EN 10204 Uhlobo 3.1 olujwayelekile; Uhlobo 3.2 uma ucela)
l Umbiko Wokuhlolwa Okungashintshi (igobolondo nesihlalo, ingcindezi, ubude besikhathi, imiphumela)
l Umbiko Wokuhlolwa Kokusebenza Okune-Cryogenic ngokwe-BS 6364(Imiphumela yokuhlolwa kwe--196°C, amazinga okuvuza, i-torque)
Umbiko Wokuhlolwa Kokukhishwa Komoya Ophumayo (ISO 15848-1 Class A noma B)
Isitifiketi Sokuhlola Esiphephile Emlilweni (i-API 607 noma i-API 6FA - uma kudingeka)
l Umbiko Wokuhlola Onobukhulu (ubuso nobuso, ukubhoboza i-flange, usayizi webhore)
Imibiko Yokuhlolwa Kwezinto Ezibalulekile (i-PMI, umthelela we-Charpy ku--196°C)
Imibiko Yokuhlolwa kwe-PMI (zonke izingxenye ze-alloy)
l Irekhodi Lokwelashwa Elijulile Le-Cryogenic (izinga lokushisa, isikhathi sokucwilisa, imijikelezo)
Imibiko Yokuhlolwa Kwe-Actuator (uma ikhona)
Uhlu Lokupakisha, I-invoyisi Yezentengiselwano, Ibhili Lokuhambisa, Isitifiketi Sokuqala
Isimemezelo Sokusebenza Se-l CE (DoP) sokuthunyelwa kwempahla eYurophu
10. Izinzuzo ze-Womic Steel kanye ne-FAQ - I-Cryogenic Ball Valve (-196°C)
Kungani Kufanele Usebenzisane Nensimbi Yomzimba Ukuze Uthole Ama-Cryogenic Ball Valves?
l Ububanzi Bosayizi Ophelele: 1/2" – 48" (DN15 – DN1200), Isigaba 150 – Isigaba 2500.
l Ukwelashwa Okujulile Kwe-Cryogenic ku--196°C – kuqinisekisa ukuzinza kobukhulu futhi kuvimbela ukuphambuka ekushiseni kwesevisi (okuphoqelekile ngokwe-BS 6364 yesevisi engu-≤ -101°C).
l Ukusebenza okuqinisekisiwe kwe-cryogenic – ama-valve angu-100% ahlolwe ku--196°C nge-BS 6364 ngaphambi kokuthunyelwa.
l Umklamo ophephile emlilweni – isitifiketi se-API 607 noma se-API 6FA siyatholakala kuwo wonke ama-valve ebhola.
l Ukukhishwa okuphansi kwe-fugitive – ISO 15848-1 Class A noma B standard yokupakisha yawo wonke ama-valve.
l Isiqu esingamelani nokungaguquki kanye nesivikela ukuqhuma – izici zokuphepha ezijwayelekile.
l Ukukhetha umklamo ontantayo noma ofakwe emathangeni kuye ngobukhulu kanye nengcindezi.
l Ukukhetha izinto zomzimba: CF3, CF3M, CF8, CF8M, LCB, LCC, izinsimbi ezingagqwali ezimbili.
l Ukukhetha izinto zesihlalo: PCTFE (isihlalo esiyinhloko esikhanyayo), RPTFE, PEEK.
l PED 2014/68/EU CE uphawu lwemishini yokucindezela yaseYurophu.
l Izikhathi zokuhola ezincintisanayo: amasonto angu-8-12 okucushwa okujwayelekile, amasonto angu-16-20 okuklanywa ngokwezifiso kwe-large-bore.
l Ukuhlolwa komuntu wesithathu kuyamukelwa (i-SGS, i-BV, i-TÜV, i-DNV, i-ABS, i-LR).
Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa) – I-Cryogenic Ball Valve (-196°C)
U: Uyini umehluko phakathi kwevalvu yebhola ejwayelekile nevalvu yebhola e-cryogenic?
A: Ama-valve ebhola le-cryogenic anezici eziningana ezibalulekile ezingatholakali kuma-valve ajwayelekile: i-bonnet enwetshiwe ene-drip plate ukuvikela izimbobo zesiqu emazingeni okushisa aphansi; ukwelashwa okujulile kwe-cryogenic (-196°C ukucwiliswa) kwazo zonke izingxenye ukuvimbela ukuphambuka; izinto ezikhethekile zesihlalo (PCTFE, PEEK) ezigcina ubuqotho besimbobo emazingeni okushisa aphansi; ukupakisha okuphansi kokukhishwa kwe-fugitive; kanye nokuhlolwa kokusebenza kwe-cryogenic okuphoqelekile ngokwe-BS 6364. Ama-valve ebhola ajwayelekile ngokuvamile anama-bonnet anganwetshiwe, izihlalo ze-polymer ezijwayelekile eziba buthakathaka emazingeni okushisa aphansi, futhi akukho ukuhlolwa kwe-cryogenic.
Q: Lingakanani izinga lokushisa eliphansi lesevisi yama-valve akho ebhola e-cryogenic?
A: Ama-valve ethu ebhola ajwayelekile e-cryogenic alinganiselwe isevisi ye--196°C (izinga lokushisa le-nitrogen eliwuketshezi) ngokwe-BS 6364 kanye ne-MSS SP-134. Ngesevisi ye-hydrogen ewuketshezi (-253°C) noma i-helium ewuketshezi (-269°C), sinikeza imiklamo ekhethekile ngezinto eziguquliwe kanye nezivalo. Sicela uxhumane nethimba lethu lobunjiniyela ngalezi zinhlelo zokusebenza zokushisa okukhulu.
U: Kuyini ukwelashwa okujulile kwe-cryogenic futhi kungani kudingeka?
A: Ukwelashwa kwe-cryogenic ejulile yinqubo yokupholisa izingxenye ze-valve zibe yi--196°C (i-nitrogen ewuketshezi) okungenani amahora angu-8, bese ibuyela kancane kancane ekushiseni kwegumbi. Le nqubo iguqula i-austenite egciniwe (engabangela izinguquko zobukhulu emazingeni okushisa e-cryogenic) ibe yi-martensite, ikhulula ukucindezeleka okusele okuvela ekusetshenzisweni, futhi iqinisekise ukuzinza kobukhulu emazingeni okushisa esevisi. I-BS 6364 idinga ukwelashwa kwe-cryogenic ejulile kuma-valve anamazinga okushisa angu-≤ -101°C.
Q: Yiziphi izinto zesihlalo ozincomayo zesevisi ye--196°C?
A: Ngensizakalo ye--196°C, sincoma i-PCTFE (polychlorotrifluoroethylene) njengezinto eziyinhloko zesihlalo. I-PCTFE igcina izakhiwo zayo zemishini futhi inikeza ukuvala okuhle kakhulu emazingeni okushisa acwebezelayo ngaphandle kokugeleza okubandayo. I-RPTFE (i-PTFE eqinisiwe) ifaneleka ku--196°C kodwa inamazinga okuvuza aphezulu kancane. I-PEEK ingasetshenziswa ku--196°C kodwa ivame ukusetshenziswa kakhulu ezinsizeni zokushisa eziphakeme (kufika ku-260°C) noma ezinsizeni zesihlalo sensimbi.
U: Ingabe ukuhlolwa kokusebenza kwe-cryogenic kuyimpoqo?
A: Ngokwe-BS 6364 kanye ne-MSS SP-134, ukuhlolwa kokusebenza kwe-cryogenic kuyimpoqo kuma-valve asetshenziswa ku-LNG kanye nesevisi ye-cryogenic. Ukuhlolwa kumele kwenziwe ku--196°C (i-nitrogen ewuketshezi) ngokuhlolwa kwesihlalo esinomfutho ophansi ngemva kokuqina kokushisa. I-Womic yenza ukuhlolwa kokusebenza kwe-cryogenic okungu-100% kuwo wonke ama-valve ebhola le-cryogenic ngaphambi kokuthunyelwa.
U: Yisiphi isitifiketi esiphephile emlilweni esinikezayo?
A: Sinikeza isitifiketi sokuphepha emlilweni ngokwe-API 607 (yama-valve ebhola athambile) kanye ne-API 6FA (yama-valve ebhola ahlala ngensimbi). Ukuhlola kuhilela ukuveza i-valve emlilweni ongu-650-760°C imizuzu engama-30, kulandelwe ukuhlolwa kokuvuza kwesihlalo. Ukwakheka kokuphepha emlilweni kuyimpoqo kwezicelo eziningi ze-LNG kanye ne-petrochemical.
U: Ingabe ninikeza ukupakisha ukukhishwa komoya okuphansi okusabalele?
A: Yebo. Wonke ama-valve ethu ebhola acwebezelayo ahlinzekwa nge-low fugitive emission packing evivinywe ngokwe-ISO 15848-1. Singakunikeza isitifiketi se-Class A noma se-Class B kuye ngezidingo zakho. Ukupakisha i-low fugitive emission packing kuyindinganiso yama-valve anama-bonnet anwetshiwe.
Q: Uyini umehluko phakathi kwebhola elintantayo namavalvu ebhola afakwe ku-trunnion?
A: Amavalvu ebhola antantayo anebhola elisekelwa yizihlalo kuphela (ibhola "liyantanta" phakathi kwezihlalo). Lo mklamo usetshenziselwa osayizi abafika ku-8" kanye nokucindezela okuphakathi. Amavalvu ebhola afakwe ku-trunnion anebhola elisekelwa ama-trunnion bearings (phezulu nangaphansi), okunciphisa i-torque yokusebenza futhi kuvumela osayizi abakhulu kanye nokucindezela okuphezulu. Ngokwe-API 6D, ukwakheka okufakwe ku-trunnion kuyimpoqo kosayizi ≥ 2" kusevisi yamapayipi.
U: Ungakwazi yini ukunikeza ama-valve ebhola e-cryogenic ngokuhambisana ne-NACE MR0175?
A: Yebo. Ngezinhlelo zokusebenza ze-cryogenic zesevisi emuncu (i-LNG ene-H2S noma i-ethylene ene-H2S), sihlinzeka ngama-valve ebhola e-cryogenic anezinto ezihambisana ne-NACE MR0175 / ISO 15156. Lokhu kufaka phakathi ukuhlolwa kobulukhuni, ukukhethwa kwezinto ezifanele, kanye nokuhambisana okubhaliwe.
Q: Yisiphi isikhathi esijwayelekile sokuhola sama-valve ebhola e-cryogenic?
A: Isikhathi esijwayelekile sokuhola singamaviki angu-8-12 kokucushwa okujwayelekile (ibhola elintantayo, osayizi ≤ 8", Isigaba 150-600). Kumavalvu afakwe ama-trunnion (osayizi ≥ 2", osayizi abakhulu), isikhathi sokuhola singamaviki angu-12-16. Kumavalvu amakhulu (> 24") noma izinto ezikhethekile, isikhathi sokuhola singamaviki angu-16-20. Ama-oda okushesha angatholakala ngamanani amancane (amasonto angu-4-6) ngezindleko zokusheshisa.
Q: Ingabe ninikeza ukusebenza kwama-valve ebhola e-cryogenic?
A: Yebo. Sinikeza ukusebenza ngesandla nge-lever (osayizi ≤ 4") noma i-operator yegiya (osayizi ≥ 2"), i-pneumatic actuation (i-spring-return noma i-double-acting), i-electric actuation (ivuliwe noma iguqulwa), kanye ne-hydraulic actuation. Wonke ama-actuator anosayizi ukuze anikeze i-torque eyanele emazingeni okushisa acwebezelayo (i-torque iyanda emazingeni okushisa aphansi ngenxa yokuncipha kokushisa).
U: Yimiphi imibhalo yokuhlola oyinikezayo nge-valve ngayinye?
A: Sihlinzeka ngephakheji ephelele yamadokhumenti ehlanganisa: Isitifiketi Sokuhlola Sohlobo lwe-3.1 Mill se-EN 10204 (Uhlobo 3.2 uma ucela), Umbiko Wokuhlola Okumanzi, Umbiko Wokuhlola Ukusebenza Okuqinile ngokwe-BS 6364 (ngamazinga okuvuza kanye ne-torque), Umbiko Wokuhlola Ukukhishwa Komoya Okungaphephile (uma kusebenza), Isitifiketi Esiphephile Emlilweni (uma kusebenza), Imibiko Yokuhlola ye-PMI, Umbiko Wokuhlola Obukhulu, Irekhodi Lokwelashwa Okujulile Kwe-Cryogenic, Imibiko Yokuhlola Izinto (kufaka phakathi umthelela we-Charpy ku--196°C), kanye Nesimemezelo Sokusebenza se-CE sokuthunyelwa kwezimpahla zaseYurophu.
Okuhlangenwe Nakho Kwephrojekthi kanye Nesifundo Secala – I-Cryogenic Ball Valve (-196°C)
Iphrojekthi:I-LNG Ethola Ukwandiswa Kwesiphetho - Jiangsu, eShayina
Okujwayelekile kanye Nezinga:I-BS 6364, i-MSS SP-134, i-API 6D, i-API 607 (Iphephile emlilweni)
Imininingwane kanye nobuningi:
Amavalvu Ebhola Afakwe ku-Trunnion angu-16" (DN400), Izihlalo ze-Class 300, Umzimba we-CF3M, i-PCTFE – amayunithi angu-8 (cishe amathani angu-3.2/iyunithi)
Amavalvu Ebhola Afakwe ku-Trunnion angu-l 12" (DN300), Izihlalo ze-Class 300, Umzimba we-CF3M, i-PCTFE – amayunithi angu-16 (cishe amathani angu-2.1/iyunithi)
Amavalvu Ebhola Elintantayo angu-l 8" (DN200), Umzimba Wekilasi 300, Izihlalo ze-CF3M, izihlalo ze-PCTFE – amayunithi angu-24 (cishe amathani angu-0.8/iyunithi)
Amavalvu Ebhola Elintantayo angu-l 6" (DN150), Umzimba Wekilasi 300, Izihlalo ze-CF3M, izihlalo ze-PCTFE – amayunithi angu-32 (cishe amathani angu-0.5/iyunithi)
Amavalvu Ebhola Elintantayo angu-l 4" (DN100), Umzimba Wekilasi 300, Izihlalo ze-CF3M, izihlalo ze-PCTFE – amayunithi angu-48 (cishe amathani angu-0.3/iyunithi)
Amavalvu Ebhola Elintantayo angu-l 2" (DN50), Umzimba we-Class 300, i-CF3M, Izihlalo ze-PCTFE – amayunithi angu-64 (cishe amathani angu-0.15/iyunithi)
Isiyonke:Amayunithi angu-192 (cishe amathani angu-28)
Ukusetshenziswa:Ukuhlukaniswa kokungena/ukuphuma kwe-LNG kwengalo yokukhulula kanye nethangi lokugcina. Izinga lokushisa lesevisi: -162°C (LNG), ingcindezi yomklamo: 5.5 MPa. Ibhonethi enwetshiwe enepuleti lokuconsa, eqhutshwa yigiya (ngesandla). Umklamo ophephile emlilweni ngokwe-API 607, ukupakisha ukukhishwa okuphansi okusabalele ngokwe-ISO 15848-1 Class B.
Izinselele Zobuchwepheshe Nezixazululo:
1. Izinga lokushisa eliphakeme kakhulu (-162°C) elidinga ukuvalwa okuthembekile kwe-cryogenic– Isevisi ye-LNG ku--162°C (engaphansi kwe-nitrogen ewuketshezi ku--196°C) idinga izihlalo ze-PCTFE ngenxa yezakhiwo zazo ezinhle kakhulu zokuvala i-cryogenic. I-Womic inikeze izihlalo ze-PCTFE ngomklamo osebenza entwasahlobo oqinisekisa ubuqotho be-seal ngemijikelezo yokushisa. Wonke ama-valve angu-192 aphumelele ukuhlolwa kwe-cryogenic ngamazinga okuvuza angaphansi kuka-0.05 cc/min nge-intshi ngayinye yobubanzi besihlalo.
2. Idizayini ephephile emlilweni yesevisi yokulayisha izingalo ze-LNG– Izingalo zokukhulula i-LNG ziyizindawo ezibalulekile zokuphepha. Isitifiketi esidingekayo se-API 607 sokuphepha emlilweni sawo wonke amavalvu angu-16" no-12". Isihlalo sensimbi se-Womic esiklanyelwe i-backup yesibili ukuze sigcine ukuvalwa uma kwenzeka umlilo. Ukuhlolwa kokuphepha emlilweni kwenziwe futhi kwaqinisekiswa yilabhorethri yomuntu wesithathu.
3. Ukupakisha ukukhishwa komoya okuphansi okusabalele ukuze kuhambisane nemvelo– Itheminali eseduze nesikhungo sabantu idinga ukupakisha kwe-ISO 15848-1 Class B. I-Womic inikeze ukupakisha kwe-graphite ekhipha umoya omncane enomklamo we-bonnet onwetshiwe oqinisekisa ukuthi izinga lokushisa lokupakisha lihlala lingaphezu kuka-20°C. Isitifiketi se-ISO 15848-1 Class B sinikezwa kuwo wonke ama-valve.
4. Ukwelashwa okujulile kwe-cryogenic kwe-castings enkulu (umzimba ongu-16")– Ama-castings amakhulu e-CF3M (umzimba ongu-16") asengozini yokuhlaselwa yi-austenite egciniwe engabangela ushintsho lobukhulu ku--162°C. I-Womic yenze ukwelashwa okujulile kwe-cryogenic kwemijikelezo emithathu (ukucwiliswa okungu-196°C, amahora angu-12 ngomjikelezo ngamunye) ngokufudumala okuphakathi. Ukuhlolwa kabusha kobukhulu kuqinisekisile ukuthi akukho ukuphazamiseka ngemva kokwelashwa.
5. Umklamo ofakwe ku-trunnion wamavalvu angu-16" no-12"– Ngokwe-API 6D, ukwakheka okufakwe ku-trunnion kuyimpoqo kumasayizi angu-≥ 2" enkonzweni yamapayipi. I-Womic inikeze ama-valve ebhola afakwe ku-trunnion aphindwe kabili kanye ne-bleed (DBB) anokukhululeka kokucindezela komgodi (ukuvula umoya wesihlalo esingaphezulu) ukuvimbela ukucindezela ngokweqile ekukhuleni koketshezi emgodini ovaliwe.
6. Ukuhlolwa komuntu wesithathu yi-TÜV– Iklayenti elidinga i-TÜV lihlole wonke ama-valve angu-192. I-Womic ixhumane nomhloli we-TÜV ukuze kuhlolwe i-hydrostatic, ukuhlolwa kokusebenza kwe-cryogenic (-162°C liquid nitrogen), kanye nokuhlolwa kokukhishwa kwe-fugitive. I-TÜV ikhiphe izitifiketi ngazinye ze-valve ngayinye zingakapheli izinsuku ezingu-14 kusukela kuqediwe ukuhlolwa.
7. Ukulethwa ngesikhathi esifanele kweshejuli yokukhulisa i-terminal– Ukwandiswa kwesiteshi kwakunesimiso esiqinile ngaphandle kwe-buffer. I-Womic ilethe wonke ama-valve angu-192 ngokuthunyelwa okungu-4 emavikini angu-12, kanti ukuthunyelwa ngakunye kwakuqukethe ama-valve adingekayo esigabeni esilandelayo sokufakwa. Ukuthunyelwa kokuqala (ama-valve angu-16" kanye no-12") kwafika emavikini angu-4 ngemuva kokuqinisekiswa kwe-oda – ngaphambi kwesikhathi esibekiwe. Akukho ukubambezeleka ekwakhiweni.
Umphumela:Ukwandiswa kwe-terminal ethola i-LNG kwaqala ukusebenza ngempumelelo ngo-2022. Wonke ama-valve ebhola e-cryogenic angu-192 asebenze ku--162°C iminyaka engaphezu kwemi-2 ngaphandle kwezehlakalo zokulungiswa. Uchwepheshe wama-valve eklayenti uthe: "Ama-valve e-cryogenic e-Womic asebenza kahle kakhulu kunalawo avela kubahlinzeki baseYurophu abaziwayo ngokuhambisana nokuqina kwe-torque kanye nobuqotho besivalo. Sinciphise isheduli yethu yokulungisa kusukela ezinkathini zonyaka kuya kweziyi-18." Iklayenti likhiphe isivumelwano seminyaka emi-5 sazo zonke izidingo zama-valve e-cryogenic zesikhathi esizayo.
Xhumana:
Iwebhusayithi: www.womicsteel.com
I-imeyili: sales@womicsteel.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
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I-Womic Steel – Umlingani wakho othembekile wama-valve ebhola e-cryogenic (-196°C) wezindawo zokugcina i-LNG, amayunithi okuhlukanisa umoya, izitshalo ze-ethylene, kanye nensizakalo yegesi yezimboni emhlabeni jikelele.
Isikhathi sokuthunyelwe: Juni-18-2026