Chitsulo cha Womic chomwe chimapereka mitengo yapamwamba komanso yopikisana ya valavu ya mpira wa cryogenic, valavu ya mpira wotentha pang'ono -196℃, valavu ya mpira wa LNG, valavu ya mpira wa cryogenic yotetezeka pamoto. Satifiketi ya Mill EN 10204 3.1/3.2, mayeso a hydro, mayeso a cryogenic performance, chithandizo cha cryogenic chozama, kapangidwe kotsika kotulutsa mpweya, kapangidwe kotetezeka pamoto, tsinde losaphulika, lopanda kuphulika, bonnet yotambasulidwa yokhala ndi mbale yodontha. Kupereka mwachindunji kwa mafakitale a LNG ndi mapulojekiti a mafakitale padziko lonse lapansi.
1. Womic Steel: Mphamvu Zopangira ndi Mphamvu za Kampani
Womic Steel Group ndi kampani yopanga ma valve opangidwa ndi anthu ambiri padziko lonse lapansi omwe ali ndi luso la zaka zoposa 20 popanga ma valve opangidwa ndi anthu ambiri omwe amagwira ntchito yotentha kwambiri. Kampani yathu yopangira zinthu zamakono imaphatikiza kupanga, kukonza, kusonkhanitsa, ndi kuyesa:
l Mzere Wopanga Valavu ya Cryogenic:Mzere wopangira ma valve a cryogenic wokhala ndi malo opangira machining a CNC, ma lathe olunjika, ndi zida zapadera zoyesera cryogenic zomwe zimatha kuyesa ma valve mpaka -196°C pogwiritsa ntchito nayitrogeni yamadzimadzi. Mphamvu yopangira pachaka yoposa ma valve a cryogenic ball 20,000.
l Malo Othandizira Kuchiza Matenda a Deep Cryogenic:Chitofu chotsukira mpweya (-196°C) chothandizira kuchepetsa kupsinjika kwa zinthu zonse zomwe zili ndi kupanikizika, kuonetsetsa kuti zinthuzo zili zokhazikika komanso kupewa kusokonekera kwa kutentha kwa ntchito. Zigawozo zimanyowa kwa maola osachepera 8 malinga ndi zofunikira za BS 6364.
Ma valve onse a cryogenic ball apangidwa ndi:
l Boneti yotambasulidwa yokhala ndi mbale yothira madzi kuti isunge kulongedza kwa tsinde kutentha komwe kungagwiritsidwe ntchito
Chipangizo choletsa nthaka chotsutsana ndi malo amodzi pa API 608 ndi BS 5351
l Kapangidwe ka tsinde losapsa ndi kuphulika
Kapangidwe kotetezeka pamoto pa API 607 / ISO 10497
l Low wothawa mpweya wotulutsa phukusi msonkhano ISO 15848-1 (Kalasi A kapena B)
l Kutseka kawiri ndi kuthekera kotulutsa magazi (ngati mukufuna)
l Mpumulo wa kuthamanga kwa m'mimba (ma valve okwera ndi trunnion)
Zitsimikizo Zaubwino & Kutsatira Malamulo:
l ISO 9001:2015 Wotsimikizika
l PED 2014/68/EU (CE Marking) ya zida zopondereza
Chilolezo cha l API 6D / API 608 Monogram
Chitsimikizo cha API 607 / API 6FA Choteteza pamoto
l ISO 15848-1 Chitsimikizo Chotsika Chotulutsa Mpweya Wothawa
Satifiketi ya EN 10204 3.2 yokhala ndi chitsimikizo cha chipani chachitatu (TÜV, BV, SGS, LR)
Kuyang'aniridwa ndi Gulu Lachitatu (TPI) kovomerezedwa ndi SGS, BV, ABS, DNV, TÜV, Lloyd's Register
Kutsatira malamulo a NACE MR0175 / ISO 15156 pa ntchito zowunikira za cryogenic
Chitsimikizo cha ATEX chikupezeka ngati mukufuna mpweya wophulika
Kupanga Kusinthasintha kwa Ma Valves a Mpira wa Cryogenic:
Mpira Woyandama: 1/2" – 8" (DN15 – DN200), Kalasi 150 – Kalasi 1500
Mpira wokwera pa Trunnion: 2" – 48" (DN50 – DN1200), Kalasi 150 – Kalasi 2500
Malumikizano a Mapeto a l: Flanged (RF, RTJ), Butt Weld (BW), Socket Weld (SW), Threaded (NPT)
l Actuation: Buku (lever, giya), Pneumatic, Electric, Hydraulic
L mphamvu yopanga pamwezi: mayunitsi 1,500-2,000 kutengera kukula ndi zovuta
Kuzindikirika Padziko Lonse:Womic Steel ndi kampani yodalirika yopereka makontrakitala apadziko lonse a EPC ndi ogwira ntchito za LNG kuphatikiza Technip Energies, McDermott, Bechtel, ndi Sinopec, yomwe ikutumikira mayiko opitilira 40 m'magawo a LNG, petrochemical, ndi gasi wa mafakitale.
2. Valavu ya Mpira ya Cryogenic: Kapangidwe ka Zinthu & Mafotokozedwe Ofunika
Ma valve a cryogenic ball amagwira ntchito kutentha kotsika mpaka -196°C, pomwe zipangizo wamba zimakhala zofooka ndipo makina otsekera wamba amalephera chifukwa cha kutentha kochepa. Ma valve athu a cryogenic ball amapangidwira makamaka kuti agwirizane ndi zinthu zoopsazi.
Zinthu Zofunika Kwambiri Pakapangidwe ka -196°C:
Bonnet Yotambasulidwa Yokhala ndi Mbale Yothira Madontho:Boneti imatambasulidwa kuti malo opakira (stem seals) akhalebe pamalo otentha kuposa kuzizira, kuletsa kupangika kwa ayezi ndikusunga umphumphu wa seal. Mbale yothira madzi imaletsa chinyezi chozungulira kuti chisadonthezeke pa insulation kapena valavu.
Chithandizo cha Deep Cryogenic:Ziwalo zonse zomwe zili ndi kupanikizika (thupi, bonnet, mpira, tsinde) zimachizidwa ndi mankhwala a cryogenic pa -196°C kwa maola osachepera 8 (kapena maulendo angapo) kuti asinthe austenite yosungidwa, kuchepetsa kupsinjika kotsala, ndikuwonetsetsa kuti kutentha kwa ntchitoyo kuli kokhazikika.
Zipangizo Zapadera Zothandizira Cryogenic:
| Chigawo | Zosankha Zazinthu | Kuchuluka kwa Kutentha | Makhalidwe Ofunika |
| Thupi/Boneti | ASTM A351 CF3/CF3M (304L/316L SS) | -196°C mpaka +300°C | Kukhazikika kwa Austenitic pa kutentha kwa cryogenic |
| Thupi/Boneti | ASTM A352 LCB/LCC (Chitsulo cha Carbon Chotentha Kwambiri) | -46°C mpaka +300°C | Kuti mupeze chithandizo chochepetsa kuuma kwa khungu |
| Thupi/Boneti | ASTM A182 F304L/F316L (Yopangidwa) | -196°C mpaka +300°C | Kukhulupirika kwakukulu, kukula kochepa |
| Mpira | ASTM A182 F304/F316 | -196°C mpaka +300°C | 100% PT/UT yayang'aniridwa |
| Mpira | ASTM A351 CF3/CF3M (Ojambula) | -196°C mpaka +300°C | Kukula kwakukulu |
| Tsinde | ASTM A182 F304L/F316L | -196°C mpaka +300°C | Mphamvu yowonjezereka kutentha kochepa |
| Tsinde | ASTM A182 F XM-19 | -196°C mpaka +300°C | Mphamvu yapamwamba, kukana kuvala bwino |
| Mpando wa Vavu | PCTFE (Polychlorotrifluoroethylene) | -196°C mpaka +150°C | Kutsika kwambiri kwa kutayikira, chisindikizo chabwino kwambiri cha cryogenic |
| Mpando wa Vavu | RPTFE (PTFE Yolimbikitsidwa) | -196°C mpaka +200°C | Kutseka bwino, kutentha kwambiri |
| Mpando wa Vavu | PEEK | -196°C mpaka +260°C | Mphamvu yapamwamba, njira yokhala ndi mpando wachitsulo |
| Zisindikizo za Thupi | Chilonda Chozungulira (Graphite + SS) | -196°C mpaka +400°C | Chisindikizo chodalirika komanso chotetezeka pamoto |
| Kuyika Tsinde | Graphite Yotsika Yothawa | -196°C mpaka +400°C | Satifiketi ya ISO 15848 |
| Kuthamanga | ASTM A320 Gr.L7 / A194 Gr.7 | Chitsulo cha kaboni chotentha kwambiri | Kwa thupi la LCB |
| Kuthamanga | ASTM A320 Gr.B8 CL.2 / A194 Gr.8 | -196°C mpaka +400°C | Kwa thupi la SS |
| Wosakhazikika | Kasupe/mpira wa aloyi wa mkuwa | – | Mpira wogundana ndi thupi |
Kutsimikizira Zinthu Zofunika Kwambiri:
l 100% PMI (Kuzindikiritsa Zinthu Zabwino) pazigawo zonse za aloyi
Kuyesa kwa Charpy V-notch impact pa -196°C kuti zitsimikizire kuti zinthu za thupi/bonnet zatsimikizika (malinga ndi BS 6364)
Kuyesa kuuma kwa ntchito zogwiritsidwa ntchito ngati sour (pa NACE MR0175)
3. Kutsatira Miyeso ndi Magawo a Dimensional Range
| Chinthu | Kufotokozera |
| Muyezo wa Kapangidwe | BS 6364, MSS SP-134, API 608, API 6D, ASME B16.34 |
| Mtundu | Mpira Woyandama (≤ 8") / Mpira Wokwezedwa ndi Trunnion (≥ 2") |
| Kukula kwa Kukula | 1/2" – 48" (DN15 – DN1200) |
| Kuyeza kwa Kupanikizika | Kalasi 150 - Kalasi 2500 (PN20 - PN420) |
| Kuchuluka kwa Kutentha | -196°C mpaka +300°C (kutengera zipangizo) |
| Malumikizano Otsiriza | Flanged (RF, RTJ pa ASME B16.5/B16.47), Butt Weld (pa ASME B16.25), Socket Weld (pa ASME B16.11), Threaded (NPT pa ASME B1.20.1) |
| Maso ndi Maso | ASME B16.10, API 6D, kapena malinga ndi zomwe kasitomala akufuna |
| Yotetezeka pamoto | API 607 (mpando wofewa), API 6FA (mpando wachitsulo) |
| Kutuluka kwa Mbalame Zothawa | ISO 15848-1 (Kalasi A kapena B) |
| Wosakhazikika | Malinga ndi API 608, BS 5351 |
| Kuthamanga | ASME B16.34, ASTM A320/A194 |
| Kuyesa kwa Cryogenic | BS 6364, MSS SP-134 |
| Kuyesa kwa Madzi | API 598, ISO 5208 |
| Kuchitapo kanthu | Chigoba, Zida (Zamanja), Pneumatic, Electric, Hydraulic |
4. Makonzedwe Omwe Akupezeka - Valavu ya Mpira ya Cryogenic (-196°C)
| Kukula | Kalasi Yopanikizika | Zinthu Zofunika pa Thupi | Zipangizo Zampando | Kulumikiza Komaliza | Kuchitapo kanthu | Ntchito Yachizolowezi |
| 1/2" – 2" | CL150-1500 | A182 F304L/F316L | PCTFE | SW/NPT/BW | Chingwe | Kukonza zida, mizere yoyesera |
| 2" – 8" | CL150-1500 | A351 CF3/CF3M | PCTFE/RPTFE | Flange/BW | Chiwongolero/Zida | Chomera cha LNG, mapaipi a ASU |
| 2" – 8" | CL150-1500 | A352 LCB/LCC | PCTFE/RPTFE | Flange/BW | Zida | Malo olandirira LNG |
| 6" – 24" | CL150-600 | A351 CF3/CF3M | PCTFE/PEEK | Flange/BW | Zida | Mizere yayikulu yosamutsira LNG |
| 6" – 24" | CL150-600 | A352 LCB/LCC | PCTFE | Flange/BW | Zida | Utumiki wa chitsulo cha kaboni chotentha pang'ono |
| 12" – 42" | CL150-300 | A351 CF3/CF3M | PCTFE | Flange/BW | Zida/Zamagetsi | Malo osungiramo zinthu a LNG |
| 2" – 48" | CL150-2500 | A351 CF3M | PCTFE/RPTFE | BW yokha | Zida/Zamagetsi | Kupanikizika kwakukulu |
Makonzedwe apadera kunja kwa mitundu iyi amapezeka ngati mungafune. Kapangidwe kokhazikika pa Trunnion ndikofunikira pa kukula ≥ 2" pa API 6D iliyonse, kapena pakugwiritsa ntchito mphamvu yamagetsi / mphamvu yamagetsi.
Zinthu Zofunika Kwambiri Pakupanga - Mpira Woyandama (Makulidwe ≤ 8"):
l Kapangidwe ka thupi la chidutswa chimodzi kapena ziwiri
l Kapangidwe ka mipando yolimbikitsidwa ndi masika
l Low ntchito torque
l Malo olowera pamwamba kapena olowera mbali akupezeka
Zinthu Zofunika Kwambiri Pakupanga - Choyimitsidwa ndi Trunnion (Makulidwe ≥ 2"):
Mpira wothandizidwa ndi ma trunnion bearing kuti ukhale ndi mphamvu zambiri
l Kapangidwe ka mipando yodzaza ndi masika (kusindikiza mipando yotsika)
l Mpumulo wa kuthamanga kwa m'mimba (mpando wakumtunda kapena mpweya wotuluka m'thupi)
l Low ntchito torque mosasamala kanthu za kuthamanga
l kawiri block ndi bleed liability
l Kapangidwe ka malo olowera pamwamba kapena mbali
5. Miyezo Yofanana ya Ma Valves a Mpira wa Cryogenic
| Muyezo | Kufotokozera | Kugwiritsa ntchito |
| BS 6364 | Mafotokozedwe a ma valve a cryogenic a LNG ndi ntchito yotsika kutentha | Muyezo waukulu wa kapangidwe ka ntchito ya cryogenic |
| MSS SP-134 | Muyezo wa ma valve a ntchito ya cryogenic | Muyezo wofanana wa ku US wa ma valve a cryogenic |
| API 608 | Ma valve a mpira wachitsulo - malekezero opindika komanso opindika matako | Muyezo wa kapangidwe ka valavu ya mpira |
| API 6D | Mafotokozedwe a ma valve a mapaipi ndi mapaipi | Muyezo wa valavu ya mpira wa payipi |
| ASME B16.34 | Ma valve - opindika, opindika, ndi opindika | Maziko a kuwerengera kutentha ndi kuthamanga kwa mpweya |
| API 607 | Kuyesa moto kwa ma valve okhala ndi mipando yofewa yozungulira kotala | Satifiketi yoteteza moto |
| API 6FA | Kuyesa moto kwa ma valve | Chitsimikizo choteteza moto cha ma valve a API 6D |
| ISO 15848-1 | Ma valve a mafakitale - njira zoyezera ndi kuyesa mpweya wotuluka wothawa | Chitsimikizo chochepa cha mpweya woipa |
| ASME B16.10 | Miyeso yoyang'anana maso ndi maso komanso yochokera kumapeto mpaka kumapeto | Muyezo wa gawo loyika |
| API 598 | Kuyang'anira ndi kuyesa ma valavu | Zofunikira zovomerezeka pa mayeso |
| NACE MR0175 / ISO 15156 | Makampani opanga mafuta ndi gasi - zipangizo zogwirira ntchito m'malo a H2S | Kutsatira malamulo a ntchito ya Sour |
Kagwiritsidwe:Malo olandirira LNG, malo opangira madzi a LNG, zida zonyamulira katundu za LNG, mapaipi osungiramo matanki a LNG, mayunitsi olekanitsa mpweya (ASU), mapaipi a okosijeni/madzi amadzimadzi, ntchito ya hydrogen yamadzimadzi, malo opangira ethylene ndi propylene, ntchito ya methanol yotsika kutentha, kukonza mpweya wa cryogenic, ntchito ya helium yamadzimadzi.
6. Njira Yopangira - Valavu ya Mpira ya Cryogenic (-196°C)
Womic Steel imagwiritsa ntchito njira zapadera zopangira ma valve a mpira wa cryogenic poyang'ana kwambiri kuyenerera kwa zinthu, chithandizo cha cryogenic chozama, komanso kutsimikizira magwiridwe antchito a cryogenic.
Gawo 1: Kuyang'anira Zinthu Zopangira ndi Kuyang'anira PMI
l Zopangira/zopangira thupi ndi bonnet zotsimikiziridwa ndi kusanthula kwa mankhwala ndi PMI
Kuyesa kwa Charpy pa -196°C pa BS 6364 kuti kutsimikizire kulimba kwa kutentha kochepa
l 100% PT (Penetrant Testing) ndi UT (Ultrasonic Testing) pa castings ya zolakwika
Kuyesa kuuma kwa ntchito zogwiritsidwa ntchito ngati wowawasa
Gawo 2: Kupanga Machining
l CNC machining ya thupi, bonnet, mpira, ndi tsinde mpaka tolerances yeniyeni
l Kupukutira kwapadera kwa malo otsekera mpira ndi mipando kuti chisindikizo cholimba chituluke
l Kumaliza kwa malo otsekera: Ra ≤ 0.4μm (kumaliza kwa galasi)
l Kupanga mitsinje yotsutsana ndi malo amodzi, mitsinje yolimba yoteteza kuphulika, komanso mpumulo wa m'mimba
Gawo 3: Chithandizo cha Deep Cryogenic (Chofunika Kwambiri pa -196°C)
l Zigawo zonse zofunika (thupi, bonnet, mpira, tsinde) zimachiritsidwa ndi cryogenic kwambiri pa -196°C (madzimadzi onyowa ndi nayitrogeni)
l Nthawi yochepa yonyowetsa: maola 8 pa BS 6364 (nthawi zambiri maola 8-12)
l m'zinthu zingapo (mpaka 3 m'zinthu) za castings zazikulu kapena zovuta
Cholinga: Sinthani austenite kukhala martensite, kuchepetsa nkhawa zotsalira, kuonetsetsa kuti kukhazikika kwa magawo kutentha kwa ntchito
l Kutsatiridwa ndi tempering kuti abwezeretse ductility (ya martensitic zosapanga dzimbiri zitsulo)
Gawo 4: Kukonza
l Zigawo zotsukidwa kuti zichotse mafuta, mafuta, kapena zinthu zina zodetsa
l Msonkhano wonse umachitika m'chipinda choyera
l Kupaka mafuta odzola omwe amagwirizana ndi cryogenic (osagwiritsa ntchito hydrocarbon)
l Kukhazikitsa mipando ndi kusintha kwa katundu musanayike (mipando yolimbikitsidwa ndi masika)
l Chisindikizo cha tsinde ndi kuyika zolongedza ndi zolongedza zochepa zotulutsa mpweya
l Msonkhano wa bonnet wotambasulidwa wokhala ndi mbale yodontha yomwe ili pamwamba pa mzere wotetezera kutentha
Gawo 5: Kuyang'anira Musanayambe Kuyesa
l Kutsimikizira kwa miyeso yonse yofunika
l Kutsimikizira kwa mphamvu ya bolting (malinga ndi ASME B16.34)
l Kuyesa mpando wa pneumatic (kuthamanga pang'ono) musanayesere hydrostatic
Gawo 6: Kuyesa kwa Hydrostatic (Pa API 598)
Mayeso a Shell: 1.5 × kapangidwe ka kuthamanga kwa masekondi osachepera 15, palibe kutayikira kooneka
Mayeso a Mpando: 1.1 × kapangidwe ka kuthamanga, mayeso a mpando wochepa mphamvu (0.5-0.7 MPa), kuchuluka kovomerezeka kwa kutayikira pa API 598 iliyonse
Palibe kutayikira kooneka pa zinthu zotsekedwa
Gawo 7: Mayeso a Cryogenic Performance (Ofunika kwambiri pa -196°C Service pa BS 6364)
Valavu yoviikidwa mu nayitrogeni yamadzimadzi (-196°C) kwa maola osachepera awiri
l Kuyesa kwa mpando wa pneumatic wothamanga pang'ono (0.6 MPa) kutentha
Kutayikira kwa mpando l kunayesedwa: ≤ 0.1 cc/min pa inchi imodzi ya m'mimba mwake wa mpando
l Muyeso wa torque pa kutentha kwa cryogenic
Mayeso a l Cycle: Osachepera 10 full cycles pa kutentha
l Palibe kuwonongeka kapena kupotoza komwe kumaloledwa
Gawo 8: Kuyesa Kutulutsa Mpweya Wothawa (Malinga ndi ISO 15848-1)
Ma Vavulovu okhala ndi ma packing otsika othawa omwe amayesedwa motsatira ISO 15848-1
Kutayikira komwe kumayesedwa pa chowunikira cha kutayikira kwa helium
Kuvomereza: Kalasi A kapena B kutengera zomwe kasitomala akufuna
Gawo 9: Kuyesa Kotetezeka pa Moto (Pa API 607 kapena API 6FA - Mukapempha)
Valavu yoyatsidwa pa moto wa 650-760°C kwa mphindi 30
l Kuyesa kutayikira kwa mpando pambuyo pa moto ndi kuzizira
l Kuyang'ana maso kuti awone ngati pali kuwonongeka
Gawo 10: Kuyang'anira Komaliza ndi Kulemba
l Kuyang'anira zowoneka bwino za zolakwika pamwamba, umphumphu wokutira, kuwerengera bwino
l Kulemba kosatha pa BS 6364 / API 6D: wopanga, kukula, kalasi yokakamiza, zinthu, kutentha, sitampu yoyesera, nambala ya seri
Kukonzekera ndi kuwunikanso zikalata
7. Njira Zowongolera Ubwino ndi Kuyesa Valavu ya Mpira ya Cryogenic (-196°C)
| Gawo | Njira Yowunikira | Cholinga |
| Zipangizo Zopangira (Kupanga/Kupanga) | PMI (Kuzindikiritsa Zinthu Zabwino) | Tsimikizani mtundu wa alloy ndi chemistry |
| Zopangira | Mayeso a Charpy Impact pa -196°C | Tsimikizani kulimba kwa kutentha kochepa malinga ndi BS 6364 |
| Zopangira | PT/UT (Kuyang'anira Kuponya) | Dziwani zolakwika zoponyera, inclusions, ndi porosity |
| Kukonza Machining | Kuyang'anira Magawo | Tsimikizani miyeso yofunika kwambiri pa ASME B16.34 |
| Pambuyo pa Chithandizo cha Deep Cryogenic | Kuyang'ananso kwa Miyeso | Tsimikizani kukhazikika kwa gawo mutatha kulandira chithandizo |
| Msonkhano | Kuyang'ana Kowoneka | Yang'anani ngati pali kuipitsidwa, kusonkhana koyenera |
| Kuyesa Koyambirira | Mayeso a Mpando wa Pneumatic (Kupanikizika Kochepa) | Tsimikizirani kukhulupirika kwa chisindikizo choyambirira |
| Valavu Yomalizidwa | Mayeso a Chipolopolo cha Madzi Osasintha | Kukhulupirika kwa kuthamanga pa API 598 iliyonse |
| Valavu Yomalizidwa | Mayeso a Mpando Wosasinthika | Kukhulupirika kwa chisindikizo cha mpando pa API 598 iliyonse |
| Valavu Yomalizidwa | Mayeso a Cryogenic Performance Test pa BS 6364 | -196°C kutsimikizira magwiridwe antchito (kofunikira) |
| Valavu Yomalizidwa | Mayeso Otulutsa Mpweya Wothawa (malinga ndi ISO 15848-1) | Kukhulupirika kwa chisindikizo chotsika |
| Valavu Yomalizidwa | Mayeso Oteteza Moto (API 607/API 6FA - mukapempha) | Satifiketi yoteteza moto |
| Valavu Yomalizidwa | Mayeso a Torque | Tsimikizani mphamvu yogwirira ntchito pa kutentha kwa cryogenic |
| Valavu Yomalizidwa | Kuyang'ana Kowoneka ndi Kofanana | Kutsimikizira komaliza kwa khalidwe |
| Valavu Yomalizidwa | Kutsimikizira Zizindikiro | Onetsetsani kuti chizindikiro chokhazikika chikugwirizana ndi miyezo |
Mayeso Osankha a Ntchito Zofunikira za Cryogenic:
Kuyesa Kutuluka kwa Helium (mass spectrometer) kwa ntchito zofunika kwambiri
l Kuyesa kwa mpando wa mpweya wopanikizika kwambiri (pa API 6D)
Mayeso a moyo wa cycle (mpaka ma cycle 500 pa kutentha kwa cryogenic)
l NDT (RT/UT) yowunikira pa x-ray
Kutsatira malamulo a ATEX pamlengalenga wophulika
l NACE MR0175 kutsatira malamulo a ntchito ya sour
Mayeso a Charpy pazigawo zenizeni (osati makuponi oyesera okha)
8. Ntchito Zoyambira - Valavu ya Mpira ya Cryogenic (-196°C)
l Ma Terminal Olandila a LNG:LNG yochokera ku zonyamulira imalowa m'matanki osungiramo zinthu kudzera m'manja otsitsa katundu, oyendetsedwa ndi mavavu a mpira wa cryogenic. Malo olumikizirana a LNG akuluakulu amagwiritsa ntchito mavavu a mpira wa cryogenic a 300-500 potsitsa katundu, kusunga, ndi kutumiza katundu. Mavavu athu amatsatira BS 6364 ndi MSS SP-134 pa ntchito ya LNG.
l Zomera Zothira Madzi za LNG:Mpweya wachilengedwe umaziziritsidwa kufika pa -162°C kuti ukhale ndi madzi. Ma valve a cryogenic ball amayendetsa kuyenda kudzera mu zosinthira kutentha, zolekanitsa, ndi mizati yogawa. Ma valve amenewa ayenera kusunga umphumphu wa seal kudzera mu mafunde ambirimbiri a kutentha.
l Zida Zonyamulira za LNG:Mukatsegula kuchokera ku terminal kupita ku chonyamulira cha LNG, ma valve a mpira a cryogenic amachotsa ndikuwongolera kuyenda kwa madzi. Kapangidwe kotetezeka pamoto (API 607) ndikofunikira pakugwiritsa ntchito mkono wotsegula.
l Ma Unit Olekanitsa Mpweya (ASU):Nayitrogeni yamadzimadzi (-196°C), mpweya wamadzimadzi (-183°C), ndi argon yamadzimadzi (-186°C). Ma valve a mpira wa cryogenic amawongolera kutulutsa ndi kusunga zinthu.
l Utumiki wa Haidrojeni ya Madzi:Hydrogen yamadzimadzi imasungidwa pa -253°C, zomwe zimafuna ma valve apadera a cryogenic. Pakugwiritsa ntchito kutentha kwakukulu kumeneku, tikupangira thupi lachitsulo chosapanga dzimbiri la austenitic lomwe lili ndi makina apadera otsekera.
l Zomera za Ethylene ndi Propylene:Kugwiritsa ntchito kutentha kochepa pa -40°C mpaka -104°C. Ma valve a cryogenic ball ndi okhazikika m'magawo ozizira a ethylene ndi ma circuits oziziritsa a propylene.
l Utumiki wa Methanol Wotentha Kwambiri:Mitengo ya methanol yokhala ndi magawo otentha pang'ono (-20°C mpaka -40°C) imafuna ma valve a cryogenic kuti igwire ntchito modalirika.
l Kukonza Mpweya wa Cryogenic:Kutulutsa mpweya wachilengedwe wa NGL (zakumwa zachilengedwe) komwe mpweya umazizira kuti ulekanitse ethane, propane, ndi butane. Ma valve a cryogenic ball amagwiritsidwa ntchito mu zolekanitsa zozizira ndi mizere yochotsera ethanizer pamwamba.
l Utumiki wa Helium yamadzimadzi:Helium yamadzimadzi pa -269°C imafuna ma valve apadera okhala ndi mipando ya PCTFE kapena ceramic. Imapezeka mukaipempha.
l Nyukiliya ndi Zamlengalenga:Kugwira ntchito kwa madzi a cryogenic m'malo oyendetsera ma rocket ndi malo ofufuzira za nyukiliya.
9. Kupaka ndi Kutumiza - Valavu ya Mpira ya Cryogenic (-196°C)
Kupaka:
l Chitetezo:Ma valve onse okulungidwa ndi pepala loletsa dzimbiri kapena pepala la VCI (Vapor Corrosion Inhibitor). Ma flange ndi maulumikizidwe a kumapeto ophimbidwa ndi zipewa zapulasitiki kapena ma flange achitsulo.
l Chitetezo Chomaliza:Zipewa zapulasitiki za malekezero a SW/NPT; ma flange achitsulo okhala ndi ma gasket a malekezero opindika (RF kapena RTJ). Malekezero a matako otchingidwa ndi zipewa zapulasitiki kapena zachitsulo.
l Chitetezo cha Actuator:Ogwiritsa ntchito zida kapena ma actuator otetezedwa ndi zophimba zapulasitiki ndi thovu.
l Mabokosi a Matabwa:Pa ma valve ang'onoang'ono (≤ 8"), mayunitsi amodzi kapena angapo amaikidwa m'mabokosi olimba amatabwa okhala ndi thovu. Mabokosi a plywood apamwamba ochokera kunja okhala ndi zolumikizira pakona.
l Zitsulo Zomangira:Pa mavavu akuluakulu (> 8") kapena mavavu olemera, ma cradle achitsulo okhala ndi zothandizira zozungulira kuti asawonongeke panthawi yoyendetsa. Mavavu amamangiriridwa ndi bolt ku cradle.
l Chotsukira mano:Matumba a desiccant a silica gel amaikidwa mkati mwa mabokosi kuti atenge chinyezi ndikuletsa dzimbiri.
Manyamulidwe:
l Njira yoyendera:Kunyamula katundu wapaulendo wapamadzi wa mavavu ang'onoang'ono ofunikira mwachangu; kutumiza katundu wapamadzi wa mavavu akuluakulu ndi maoda akuluakulu; kukonza zinthu za polojekiti ya mavavu olemera akuluakulu.
l Kuyika zinthu mu chidebe:Ma valve ang'onoang'ono amaikidwa mu mapaleti ndikuyikidwa m'zidebe; ma valve akuluakulu m'zidebe zathyathyathya kapena zotengera zotseguka pamwamba.
l Kuchuluka kwa ndalama:Ma valve akuluakulu kwambiri kapena olemera kwambiri (> 48" kapena > 5 matani) amatumizidwa payekhapayekha pa zombo zosweka.
l Zolemba:Bokosi lililonse kapena chidebe cholembedwa ndi nambala ya chizindikiro cha valavu, kukula, kalasi ya kupanikizika, zinthu, nambala ya seri, ndi malangizo ogwiritsira ntchito. Zolemba zapadera zosonyeza ntchito ya cryogenic.
l Zolemba:MTC Yonse (EN 10204 Mtundu 3.1/3.2), lipoti la mayeso a hydrostatic, lipoti la mayeso a cryogenic performance test pa BS 6364, lipoti la mayeso a fugitive emission, satifiketi yoteteza moto (ngati ilipo), lipoti la dimensional, mndandanda wa zonyamula, invoice yamalonda, bilu ya katundu, satifiketi yochokera, CE Declaration of Performance.
Zolemba Zoperekedwa ndi Kutumiza Kulikonse:
Satifiketi Yoyesera ya Mill (EN 10204 Mtundu 3.1 muyezo; Mtundu 3.2 mukapempha)
l Lipoti la Mayeso a Hydrostatic (chipolopolo ndi mpando, kupanikizika, nthawi, zotsatira)
l Lipoti la Mayeso a Cryogenic Performance Test pa BS 6364(Zotsatira za mayeso a -196°C, kuchuluka kwa kutayikira kwa madzi, mphamvu ya madzi)
Lipoti la Mayeso a Kutuluka kwa Mpweya Wothawa (ISO 15848-1 Kalasi A kapena B)
l Satifiketi Yoyesera Yotetezeka pa Moto (API 607 kapena API 6FA - ngati pakufunika)
Lipoti Loyang'anira Magawo (kumayang'anana maso ndi maso, kuboola flange, kukula kwa chibowo)
Malipoti Oyesera Zinthu (PMI, Charpy impact pa -196°C)
Malipoti a Mayeso a PMI (zigawo zonse za aloyi)
l Deep Cryogenic Treatment Record (kutentha, nthawi yonyowa, nthawi yozungulira)
Malipoti a Mayeso a Actuator (ngati alipo)
Mndandanda Wolongedza, Invoice Yamalonda, Bilu Yonyamula, Satifiketi Yoyambira
Chilengezo cha Kuchita Bwino (CE) cha kutumiza ku Europe
10. Ubwino ndi Mafunso Ofunsidwa Kawirikawiri pa Chitsulo cha Womic - Valavu ya Mpira ya Cryogenic (-196°C)
N’chifukwa Chiyani Muyenera Kugwirizana ndi Womic Steel pa Ma Valves a Mpira a Cryogenic?
l Kukula Konse: 1/2" – 48" (DN15 – DN1200), Kalasi 150 – Kalasi 2500.
l Chithandizo cha Deep Cryogenic pa -196°C – chimatsimikizira kukhazikika kwa mawonekedwe ndikuletsa kusokonekera pa kutentha kwa ntchito (chofunikira malinga ndi BS 6364 pa ntchito ya ≤ -101°C).
l Kugwira ntchito kotsimikizika kwa cryogenic - ma valve 100% oyesedwa pa -196°C pa BS 6364 isanatumizidwe.
Kapangidwe kotetezeka pamoto - Chitsimikizo cha API 607 kapena API 6FA chikupezeka pa ma valve onse a mpira.
l Kutulutsa mpweya wochepa wothawa - ISO 15848-1 Muyezo wa kulongedza wa Kalasi A kapena B wa ma valve onse.
l Tsinde loletsa kugwedezeka komanso losaphulika - mawonekedwe okhazikika achitetezo.
l Kusankha kapangidwe koyandama kapena kokhazikika pa trunnion kutengera kukula ndi kupanikizika.
l Kusankha zinthu zogwirira ntchito: CF3, CF3M, CF8, CF8M, LCB, LCC, zitsulo zosapanga dzimbiri ziwiri.
l Kusankha mipando: PCTFE (mpando waukulu wa cryogenic), RPTFE, PEEK.
Chizindikiro cha PED 2014/68/EU CE cha zida zopondereza ku Europe.
Nthawi zotsogola zampikisano: masabata 8-12 a makonzedwe okhazikika, masabata 16-20 a mapangidwe akuluakulu.
Kuyang'aniridwa ndi chipani chachitatu kwavomerezedwa (SGS, BV, TÜV, DNV, ABS, LR).
Mafunso Ofunsidwa Kawirikawiri (FAQ) - Valavu ya Mpira ya Cryogenic (-196°C)
Q: Kodi pali kusiyana kotani pakati pa valavu ya mpira wamba ndi valavu ya mpira ya cryogenic?
Yankho: Ma valve a cryogenic ali ndi zinthu zingapo zofunika zomwe sizipezeka mu ma valve wamba: bonnet yotambasulidwa yokhala ndi mbale yothira madzi kuti iteteze zisindikizo za tsinde ku kutentha kwa cryogenic; chithandizo cha cryogenic chozama (-196°C) cha zigawo zonse kuti zisasokonezeke; zipangizo zapadera za mipando (PCTFE, PEEK) zomwe zimasunga umphumphu wa chisindikizo pa kutentha kochepa; kulongedza mpweya wochepa wotuluka; ndi mayeso ofunikira a cryogenic malinga ndi BS 6364. Ma valve a mpira wamba nthawi zambiri amakhala ndi maboneti osatambasulidwa, mipando ya polima yokhazikika yomwe imakhala yolimba pa kutentha kwa cryogenic, komanso palibe mayeso a cryogenic.
Q: Kodi kutentha kochepa kwambiri kwa ma valve anu a cryogenic ball ndi kotani?
A: Ma valve athu okhazikika a cryogenic ball ali ndi chiwerengero cha -196°C service (liquid nayitrogeni temperature) pa BS 6364 ndi MSS SP-134. Pa ntchito ya liquid hydrogen (-253°C) kapena liquid helium (-269°C), timapereka mapangidwe apadera okhala ndi zinthu zosinthidwa ndi zisindikizo. Chonde funsani gulu lathu la mainjiniya kuti mudziwe momwe mungagwiritsire ntchito kutentha kwambiri.
Q: Kodi chithandizo cha deep cryogenic n'chiyani ndipo n'chifukwa chiyani chikufunika?
Yankho: Kuchiza ndi cryogenic kwambiri ndi njira yoziziritsira zigawo za valavu kufika pa -196°C (nayitrogeni wamadzimadzi) kwa maola osachepera 8, kenako pang'onopang'ono kubwerera kutentha kwa chipinda. Njirayi imasintha austenite yosungidwa (yomwe ingayambitse kusintha kwa kukula kwa kutentha kwa cryogenic) kukhala martensite, imachepetsa kupsinjika kotsalira kuchokera ku makina opangira, ndikuwonetsetsa kuti kukhazikika kwa kukula kwa kutentha kwa ntchito. BS 6364 imafuna chithandizo cha cryogenic kwambiri cha mavalavu okhala ndi kutentha kwa ≤ -101°C.
Q: Ndi zipangizo ziti za mipando zomwe mumalimbikitsa pa ntchito ya -196°C?
A: Pa ntchito ya -196°C, tikupangira PCTFE (polychlorotrifluoroethylene) ngati chinthu chachikulu chopachikira mipando. PCTFE imasunga mawonekedwe ake amakina ndipo imapereka kutseka bwino kwambiri kutentha kwa cryogenic popanda kuzizira. RPTFE (PTFE yolimbikitsidwa) ndi yoyenera -196°C koma ili ndi kuchuluka kwa kutayikira pang'ono. PEEK ingagwiritsidwe ntchito pa -196°C koma imagwiritsidwa ntchito kwambiri pa ntchito za kutentha kwapamwamba (mpaka 260°C) kapena kugwiritsa ntchito mipando yachitsulo.
Q: Kodi kuyezetsa magwiridwe antchito a cryogenic ndikofunikira?
A: Malinga ndi BS 6364 ndi MSS SP-134, kuyesa kwa cryogenic ndikofunikira pa ma valve omwe amagwiritsidwa ntchito mu LNG ndi ntchito ya cryogenic. Kuyesa kuyenera kuchitidwa pa -196°C (nayitrogeni wamadzimadzi) ndi mayeso otsika a pneumatic seat test pambuyo pokhazikika kutentha. Womic amachita mayeso a cryogenic 100% pa valavu iliyonse ya cryogenic ball isanatumizidwe.
Q: Ndi satifiketi iti yoteteza moto yomwe mumapereka?
A: Timapereka satifiketi yoteteza moto motsatira API 607 (ya mavavu a mpira okhala ndi mipando yofewa) ndi API 6FA (ya mavavu a mpira okhala ndi mipando yachitsulo). Kuyesa kumaphatikizapo kuyatsa valavu pa moto wa 650-760°C kwa mphindi 30, kutsatiridwa ndi kuyesa kutayikira kwa mpando. Kapangidwe koteteza moto ndikofunikira pa ntchito zambiri za LNG ndi petrochemical.
Q: Kodi mumapereka ma phukusi otsika otulutsa mpweya woipa?
A: Inde. Ma valve athu onse a cryogenic ball ali ndi ma packing otsika otulutsa mpweya omwe ayesedwa motsatira ISO 15848-1. Tikhoza kupereka satifiketi ya Class A kapena Class B kutengera zomwe mukufuna. Ma packing otsika otulutsa mpweya ndi muyezo wa ma valve okhala ndi maboneti otambalala.
Q: Kodi kusiyana pakati pa mpira woyandama ndi ma valve a mpira omangiriridwa ndi trunnion ndi kotani?
A: Ma valve a mpira oyandama amakhala ndi mpira wochirikizidwa ndi mipando yokha (mpira "umayandama" pakati pa mipando). Kapangidwe kameneka kamagwiritsidwa ntchito pa kukula mpaka 8" ndi kupsinjika pang'ono. Ma valve a mpira oyikidwa pa trunnion ali ndi mpira wochirikizidwa ndi ma trunnion bearing (pamwamba ndi pansi), zomwe zimachepetsa mphamvu yogwirira ntchito ndikulola kukula kwakukulu ndi kupsinjika kwakukulu. Malinga ndi API 6D, kapangidwe koyikidwa pa trunnion ndikofunikira pa kukula ≥ 2" mu ntchito ya mapaipi.
Q: Kodi mungapereke ma valve a mpira a cryogenic okhala ndi NACE MR0175 compliance?
A: Inde. Pa ntchito zoyezera cryogenic (LNG yokhala ndi H2S kapena ethylene yokhala ndi H2S), timapereka ma valve a cryogenic ball okhala ndi zinthu zogwirizana ndi NACE MR0175 / ISO 15156. Izi zikuphatikizapo kuyesa kuuma, kusankha zinthu zoyenera, komanso kutsatira malamulo olembedwa.
Q: Kodi nthawi yodziwika bwino yogwiritsira ntchito ma valve a mpira wa cryogenic ndi iti?
A: Nthawi yokhazikika yotsogolera ndi masabata 8-12 pamakonzedwe okhazikika (mpira woyandama, kukula ≤ 8", Gulu 150-600). Pa ma valve omangika pa trunnion (kukula ≥ 2", kukula kwakukulu), nthawi yotsogolera ndi masabata 12-16. Pa ma valve akuluakulu (> 24") kapena zipangizo zapadera, nthawi yotsogolera ndi masabata 16-20. Maoda ofulumira angapezeke pa kuchuluka kochepa (masabata 4-6) ndi ndalama zolipirira mwachangu.
Q: Kodi mumapereka mphamvu zogwiritsira ntchito ma valve a mpira wa cryogenic?
A: Inde. Timapereka ntchito yamanja yokhala ndi lever (kukula ≤ 4") kapena giya (kukula ≥ 2"), pneumatic actuation (spring-return kapena double-acting), electric actuation (yozimitsa kapena yosinthasintha), ndi hydraulic actuation. Ma actuator onse ndi a kukula kuti apereke torque yokwanira pa kutentha kwa cryogenic (torque imawonjezeka pa kutentha kochepa chifukwa cha kutentha kochepa).
Q: Ndi zikalata zoyesera ziti zomwe mumapereka ndi valavu iliyonse?
A: Timapereka phukusi lathunthu la zikalata kuphatikizapo: Satifiketi Yoyesera ya EN 10204 Type 3.1 Mill (Mtundu 3.2 mukapempha), Lipoti Loyesa la Hydrostatic, Lipoti Loyesa Kuchita Bwino kwa Cryogenic malinga ndi BS 6364 (yokhala ndi kuchuluka kwa kutayikira ndi torque), Lipoti Loyesa Kutulutsa Mpweya Wothawa (ngati kuli koyenera), Satifiketi Yotetezeka pa Moto (ngati kuli koyenera), Malipoti Oyesa a PMI, Lipoti Loyang'anira Dimensional, Mbiri Yothandizira ya Deep Cryogenic, Malipoti Oyesa Zinthu (kuphatikiza Charpy impact pa -196°C), ndi CE Declaration of Performance ya zotumiza ku Europe.
Zochitika pa Pulojekiti & Kafukufuku wa Nkhani - Valavu ya Mpira ya Cryogenic (-196°C)
Pulojekiti:LNG Ikukulitsa Malo Ogulitsira Zinthu - Jiangsu, China
Muyezo ndi Giredi:BS 6364, MSS SP-134, API 6D, API 607 (Yotetezeka pamoto)
Mafotokozedwe ndi Kuchuluka:
Ma Vavu a Mpira Okhala ndi Trunnion a 16" (DN400), Mipando ya Gulu 300, Thupi la CF3M, PCTFE – mayunitsi 8 (pafupifupi matani 3.2 payunitsi)
Ma Vavu a Mpira Okhala ndi Trunnion a 12" (DN300), Mipando ya Gulu 300, Thupi la CF3M, PCTFE – mayunitsi 16 (pafupifupi matani 2.1 payunitsi)
Ma Vavu a Mpira Oyandama a l 8" (DN200), Gulu 300, Thupi la CF3M, Mipando ya PCTFE – mayunitsi 24 (pafupifupi matani 0.8 pa yuniti)
Ma Vavu a Mpira Oyandama a l 6" (DN150), Gulu 300, Thupi la CF3M, Mipando ya PCTFE – mayunitsi 32 (pafupifupi matani 0.5 payunitsi)
Ma Vavu a Mpira Oyandama a l 4" (DN100), Gulu 300, Thupi la CF3M, Mipando ya PCTFE – mayunitsi 48 (pafupifupi matani 0.3 payunitsi)
Ma Vavu a Mpira Oyandama a l 2" (DN50), Gulu 300, Thupi la CF3M, Mipando ya PCTFE – mayunitsi 64 (pafupifupi matani 0.15 payunitsi)
Zonse:Mayunitsi 192 (pafupifupi matani 28)
Kagwiritsidwe:Kuchotsa LNG ndi thanki yosungiramo zinthu. Kutentha kwa ntchito: -162°C (LNG), kuthamanga kwa kapangidwe: 5.5 MPa. Boneti yotambasulidwa yokhala ndi mbale yothira madzi, yoyendetsedwa ndi giya (yogwiritsidwa ntchito pamanja). Kapangidwe kotetezeka pamoto pa API 607, kulongedza mpweya wochepa wotuluka pa ISO 15848-1 Class B.
Mavuto ndi Mayankho a Ukadaulo:
1. Kutentha kwambiri (-162°C) komwe kumafuna kutseka kodalirika kwa cryogenic– Ntchito ya LNG pa -162°C (yotsika kuposa nayitrogeni yamadzimadzi pa -196°C) imafuna mipando ya PCTFE chifukwa cha mphamvu zake zabwino zotsekera cryogenic. Womic imapereka mipando ya PCTFE yokhala ndi kapangidwe ka masika kotsimikizira kukhulupirika kwa chisindikizo panthawi ya kutentha. Ma valve onse 192 adapambana mayeso a cryogenic okhala ndi kuchuluka kwa kutayikira < 0.05 cc/min pa inchi iliyonse ya mainchesi awiri a mpando.
2. Kapangidwe kotetezeka pamoto ka ntchito yotsitsa zida za LNG– Magalimoto otsitsa zida za LNG ndi malo ofunikira kwambiri otetezera. Kasitomala amafunikira satifiketi yoteteza moto ya API 607 ya ma valve onse a 16" ndi 12". Womic adapanga chosungira chachiwiri cha mipando yachitsulo kuti chizitseke ngati moto wayamba. Mayeso oteteza moto adachitidwa ndikutsimikiziridwa ndi labotale yachitatu.
3. Kulongedza mpweya wochepa wotuluka chifukwa chotsata malamulo a chilengedwe– Malo oimika magalimoto omwe ali pafupi ndi malo opezeka anthu ambiri amafunika kulongedza magalimoto a ISO 15848-1 Class B. Womic imapereka kulongedza magalimoto a graphite otsika komanso kapangidwe kake ka bonnet kowonjezera komwe kumatsimikizira kuti kutentha kwa magalimoto kumakhala pamwamba pa -20°C. Satifiketi ya ISO 15848-1 Class B yaperekedwa pa ma valve onse.
4. Chithandizo cha cryogenic cha castings zazikulu (thupi la 16")– Ma castings akuluakulu a CF3M (thupi la 16") amatha kugwidwa ndi austenite yosungidwa yomwe ingayambitse kusintha kwa kukula kwa -162°C. Womic adachita chithandizo cha cryogenic cha magawo atatu (-196°C kulowa m'madzi, maola 12 pa kuzungulira) ndi kutentha kwapakati. Kuyang'anitsitsanso kwa kukula kwa mawonekedwewo kunatsimikizira kuti palibe kusokonekera pambuyo pa chithandizo.
5. Kapangidwe kokhazikika pa Trunnion ka ma valve a 16" ndi 12"– Malinga ndi API 6D, kapangidwe kokhazikika pa trunnion ndikofunikira pa kukula kwa ≥ 2" mu ntchito ya mapaipi. Womic imapereka ma valve a mpira okhala ndi trunnion awiri okhala ndi block ndi bleed (DBB) okhala ndi mpumulo wa kupanikizika kwa m'mimba (kutulutsa mpweya wopita kumtunda) kuti apewe kupanikizika kwambiri kuchokera kukukula kwa madzi m'mimba yotsekedwa.
6. Kuyang'aniridwa ndi chipani chachitatu ndi TÜV– Kasitomala wofunikira TÜV adawona mayeso a ma valve onse 192. Womic adagwirizana ndi wofufuza wa TÜV kuti ayese mayeso a hydrostatic, mayeso a cryogenic performance (-162°C liquid nitrogen), ndi mayeso otulutsa mpweya wothawa. TÜV idapereka satifiketi ya valavu iliyonse mkati mwa masiku 14 kuchokera pamene mayesowo adamalizidwa.
7. Kutumiza nthawi yake kuti kuwonjezere nthawi yofikira– Kukulitsa malo oimika magalimoto kunali ndi nthawi yochepa popanda choletsa. Womic inapereka ma valve onse 192 m'magawo anayi otumizira mkati mwa masabata 12, ndipo kutumiza kulikonse komwe kunali ndi ma valve kunali kofunikira pa gawo lotsatira lokhazikitsa. Kutumiza koyamba (ma valve a 16" ndi 12") kunafika milungu 4 pambuyo potsimikizira oda - nthawi isanakwane. Palibe kuchedwa pa ntchito yomanga.
Zotsatira:Kukulitsa malo olumikizira magetsi a LNG komwe kunachitika mu 2022 kunayamba bwino ntchito. Ma valve onse 192 a cryogenic ball akhala akugwira ntchito pa -162°C kwa zaka zoposa ziwiri popanda vuto lililonse lokonza. Katswiri wa ma valve a kasitomala anati: "Ma valve a cryogenic a Womic nthawi zonse ankagwira ntchito bwino kuposa omwe adachokera kwa ogulitsa odziwika bwino aku Europe pankhani ya torque komanso kulimba kwa seal. Tachepetsa nthawi yathu yokonza kuchokera pa miyezi 18 pachaka." Kasitomala adapereka mgwirizano wa zaka 5 pazofunikira zonse zamtsogolo za cryogenic valve.
Lumikizanani nafe:
Webusaiti: www.womicsteel.com
Imelo: sales@womicsteel.com
Foni / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel - Mnzanu wodalirika wa ma valve a mpira wa cryogenic (-196°C) a ma terminal a LNG, mayunitsi olekanitsa mpweya, zomera za ethylene, ndi ntchito zamagesi zamafakitale padziko lonse lapansi.
Nthawi yotumizira: Juni-18-2026