Kufotokozera Kwachidule:
Mawu Ofunika:
Valavu ya Chipata cha Cryogenic Valavu ya Chipata cha -196℃ Valavu ya Chipata cha LNG Valavu Yotsika ya Chipata Chotentha Valavu Yodzipatula ya Cryogenic Valavu Yowonjezera ya Chipata cha Bonnet Valavu Yothandizira Cryogenic Valavu ya Z40H Cryogenic Valavu Yotseka ya LN2 Valavu ya Cryogenic ya API 600
Kufotokozera Kwachidule kwa Zamalonda:
Zogulitsa za Womic Steelma valve a chipata cha cryogenic ogwira ntchito kwambiriyopangidwa kuti ikhale yotetezeka komanso yotetezeka m'malo otentha kwambirimpaka -196°C, yopangidwira makamaka malo olandirira LNG, malo oyeretsera madzi, malo olekanitsira mpweya, makina a okosijeni/amadzimadzi a okosijeni, ndi malo oyeretsera ethylene. Ma valve athu a chipata cha cryogenic ali ndibonnet yotambasulidwa yokhala ndi mbale yothira madzikuteteza zisindikizo za stem ku kutentha kwa cryogenic, mapangidwe a wedge kapena parallel slide disc, ndi kapangidwe ka bolnet yokhala ndi ma spiral wound gaskets kuti ntchito ikhale yodalirika. Imapezeka mu kukula kuyambira1/2" mpaka 48" (DN15 mpaka DN1200)ndi ziwerengero za kukakamizidwa kuchokeraKalasi 150 mpaka Kalasi 2500Zinthu zogwirira ntchito za thupi zimaphatikizapoChitsulo chosapanga dzimbiri cha austenitic (CF3, CF3M, CF8, CF8M)ndiChitsulo cha kaboni chotentha pang'ono (LCB, LCC)ndi mayeso okakamiza a Charpy pa -196°C paBS 6364Ziwalo zonse zomwe zili ndi kupanikizika zimachiritsidwa mozama pa -196°C kuti zitsimikizire kuti zinthuzo zili bwino komanso kuti zisasokonezeke kutentha kwa ntchito. Malo otsekera zipata ndi mipando ndi olimba chifukwa chaAloyi wa Stellitekuti apereke kukana kwabwino kwambiri kwa kuwonongeka ndi moyo wautali wautumiki m'malo okhala ndi cryogenic. Ma valve amatha kuperekedwa ndi ISO 15848-1 low fugitive emission packing, rising stem (OS&Y) kapena non-rising stem configurations, ndi pneumatic kapena electric actuation. Chiphaso cha Mill EN 10204 3.1/3.2, hydrostatic test, cryogenic performance test pa BS 6364, refugeous emission test ikupezeka.Kupereka mwachindunji kwa fakitaleza LNG, gasi wa mafakitale, ndi mapulojekiti a mafakitale padziko lonse lapansi.
Kukula kwa Valavu ya Chipata cha Cryogenic:1/2" – 48" (DN15 – DN1200)
Muyezo ndi Giredi ya Cryogenic Gate Valve:BS 6364, API 600, API 6D, ASME B16.34, MSS SP-134, ISO 15848-1 (kutulutsa mpweya wothawa), NACE MR0175, API 598
Kugwiritsa Ntchito Valavu ya Chipata cha Cryogenic:Malo olandirira LNG, malo oyeretsera madzi a LNG, zida zonyamulira katundu za LNG, mayunitsi olekanitsa mpweya (ASU), mapaipi a okosijeni/madzi amadzimadzi, ntchito ya hydrogen yamadzimadzi, malo oyeretsera madzi a ethylene ndi propylene, ntchito ya methanol yotsika kutentha, kukonza mpweya wa cryogenic, ntchito ya helium yamadzimadzi, ziwiya zosungiramo cryogenic, mapaipi ozizira, ntchito zazikulu zotsekera cryogenic
Womic Steel imapereka mitengo yapamwamba komanso yopikisana ya valavu ya chipata cha cryogenic, valavu yotseka kutentha kochepa -196℃, valavu ya chipata cha LNG, valavu ya chipata cha cryogenic yowonjezera bonnet, valavu ya chipata cha cryogenic ya API 600. Satifiketi ya Mill EN 10204 3.1/3.2, mayeso a hydro, mayeso a cryogenic performance, chithandizo cha cryogenic chozama, malo otsekera olimba a Stellite, kapangidwe kotsika kotulutsa mpweya, kutsatira malamulo a NACE MR0175. 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 yodziwika bwino padziko lonse lapansi yopanga ma valve a cryogenic gate omwe ali ndi zaka zoposa 20 zaukadaulo popanga ma valve ogwira ntchito bwino kwambiri kuti azitha kudzipatula komanso kuzimitsa kutentha kwambiri. Malo athu opangira zinthu zamakono amaphatikiza luso lopanga, kupanga, kusonkhanitsa, ndi kuyesa:
l Mzere Wopanga Valavu ya Chipata cha Cryogenic:Mzere wopangidwa ndi ma valve a cryogenic wokhala ndi malo opangira ma CNC, zida zomangira ma valve akuluakulu (okhoza kugwira ma valve a mainchesi 48), ndi malo oyesera ma valve a cryogenic omwe amatha kuyesa ma valve mpaka -196°C pogwiritsa ntchito nayitrogeni yamadzimadzi. Mphamvu yopangira pachaka yoposa ma valve a cryogenic gate 10,000.
l Malo Othandizira Kuchiza Matenda a Deep Cryogenic:Chitofu chotsukira mpweya (-196°C) chothandizira kupsinjika kwa zinthu zonse zomwe zili ndi kupsinjika, kuonetsetsa kuti zinthuzo zili zokhazikika komanso kupewa kusokonekera kutentha komwe kumagwiritsidwa ntchito. Zigawozo zimanyowa kwa maola osachepera 8 malinga ndi zofunikira za BS 6364.
Ma valve onse a cryogenic gate apangidwa ndi:
• Boneti yotambasulidwa yokhala ndi mbale yothira madzi kuti isunge kulongedza kwa tsinde pamalo otentha komanso kupewa kupangika kwa ayezi
• Kapangidwe ka bolnet yokhala ndi ma gasket ozungulira (graphite + SS) kuti atsekedwe modalirika
• Mapangidwe a zipata zozungulira kapena zozungulira zokhala ndi malo otsekera a Stellite olimba kuti zisamawonongeke kwambiri
• Mapangidwe a tsinde lokwera (OS&Y) kapena tsinde losakwera
• Msonkhano wonyamula mpweya wochepa wothawa ISO 15848-1 (Kalasi A kapena B)
• Mbali yakumbuyo ya mpando wachiwiri kwa kubwezeretsedwa kwa chisindikizo cha stem
• Zosankha zotsatizana ndi utumiki wa sour malinga ndi NACE MR0175
Zitsimikizo Zaubwino & Kutsatira Malamulo:
l ISO 9001:2015 Wotsimikizika
l PED 2014/68/EU (CE Marking) ya zida zopondereza
l API 600 / API 6D Design Compliance
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
Kusinthasintha kwa Kupanga kwa Ma Valves a Chipata cha Cryogenic:
l Kukula: 1/2" – 48" (DN15 – DN1200)
Kuyeza kwa Kupanikizika: Kalasi 150 - Kalasi 2500 (PN20 - PN420)
Malumikizidwe a Mapeto a l: Flanged (RF, RTJ pa ASME B16.5/B16.47), Butt Weld (BW pa ASME B16.25), Socket Weld (SW pa ASME B16.11)
l Thupi Zipangizo: LCB, LCC, CF3, CF3M, CF8, CF8M
Mitundu ya Chipata: Wedge Yolimba (ya kukula kochepa), Wedge Yosinthasintha, Parallel Slide (ya kukula kwakukulu ndi kuthamanga kwambiri)
l Seat Hardfacing: Stellite 6 kapena Stellite 21 (Standard)
l Kugwira Ntchito: Handwheel (Manual), Giya (Manual ya kukula kwakukulu), Pneumatic, Electric
L mphamvu yopanga mwezi uliwonse: mayunitsi 800-1,200 kutengera kukula ndi zovuta
Kuzindikirika Padziko Lonse:Womic Steel ndi kampani yodalirika yogulitsa zombo zapadziko lonse lapansi komanso makontrakitala a EPC kuphatikiza COSCO Shipping, Hyundai Heavy Industries, ndi Keppel Shipyard ya LNG carrier ndi FPSO. Zogulitsa zathu zimavomerezedwa ndi ABS, DNV, LR, BV, CCS, ndi mabungwe ena akuluakulu ogawa zombo.
2. Valavu ya Chipata cha Cryogenic: Kapangidwe ka Zinthu & Mafotokozedwe a Makiyi
Ma valve a chipata cha cryogenic amagwira ntchito kutentha kotsika mpaka -196°C, komwe zipangizo zokhazikika zimakhala zofooka ndipo makina otsekera okhazikika amalephera chifukwa cha kutentha kochepa. Ma valve athu a chipata cha cryogenic adapangidwa makamaka kuti agwirizane ndi zinthu zoopsazi ndi mapangidwe otsimikiziridwa ndi BS 6364, API 600, ndi API 6D.
Zinthu Zofunika Kwambiri Pakapangidwe ka -196°C:
Bonnet Yotambasulidwa Yokhala ndi Mbale Yothira Madontho:Boneti imatambasulidwa kuti malo opakira (stem seals) akhalebe kutentha kuposa kuzizira, kuteteza kupangika kwa ayezi ndikusunga umphumphu wa seal. Mbale yothira madzi imaletsa chinyezi chozungulira kuti chisadonthezeke pa insulation.
Chithandizo cha Deep Cryogenic:Pa kutentha kwa ntchito ≤ -101°C, ziwalo zonse zomwe zili ndi kupanikizika (thupi, bonnet, chipata, tsinde) zimachiritsidwa ndi deep cryogenic therapy pa -196°C kwa maola osachepera 8 (kapena maulendo angapo) kuti asinthe austenite yosungidwa, kuchepetsa kupsinjika kotsalira, ndikuwonetsetsa kuti kukhazikika kwa gawo pa kutentha kwa ntchito. Ichi ndi chofunikira chofunikira malinga ndi BS 6364 ndi API 6D.
Malo Otsekera Olimba a Stellite:Malo otsekera zipata ndi mipando amakhala olimba ndi Stellite alloy (nthawi zambiri Stellite 6 kapena Stellite 21). Izi zimapereka kukana kwabwino kwambiri kwa kuwonongeka, zimaletsa kupweteka ndi kugwidwa ndi kutentha kwa cryogenic, ndipo zimawonjezera nthawi yogwira ntchito ya mavavu kwambiri poyerekeza ndi mapangidwe osalimba.
Kapangidwe ka Bolnet Yokhala ndi Mabotolo:Malinga ndi zofunikira za BS 6364 ndi API 600, ma valve a chipata cha cryogenic ali ndi kapangidwe ka bolnet yokhala ndi ma gasket ozungulira kuti atseke bwino komanso kuti azisamalidwa mosavuta.
Zipangizo Zapadera Zothandizira Cryogenic:
| Chigawo | Zosankha Zazinthu | Kuchuluka kwa Kutentha | Makhalidwe Ofunika |
|---|---|---|---|
| Thupi/Boneti | ASTM A352 LCB/LCC | -46°C mpaka +300°C | Chitsulo cha kaboni chotentha kwambiri |
| Thupi/Boneti | ASTM A351 CF3/CF3M (304L/316L SS) | -196°C mpaka +300°C | Kukhazikika kwa Austenitic pa kutentha kwa cryogenic |
| Thupi/Boneti | ASTM A351 CF8/CF8M (304/316 SS) | -196°C mpaka +300°C | Mtundu wapamwamba wa kaboni |
| Geti | ASTM A182 F304/F316 | -196°C mpaka +300°C | Nkhope zolimba za Stellite |
| Mphete za Mpando | ASTM A182 F304/F316 | -196°C mpaka +300°C | Nkhope zolimba za Stellite, zosinthika |
| 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, kuvala bwino |
| Gasket ya 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 | -46°C mpaka +300°C | Kwa thupi la LCB/LCC |
| Kuthamanga | ASTM A320 Gr.B8 CL.2 / A194 Gr.8 | -196°C mpaka +400°C | Kwa thupi la SS |
| Kukonza Zinthu Molimba | Stellite 6 / Stellite 21 | -196°C mpaka +400°C | Malo otsekera zipata ndi mipando |
Kutsimikizira Zinthu Zofunika Kwambiri:
✔100% PMI (Kuzindikiritsa Zinthu Zabwino) pazigawo zonse za alloy
✔Kuyesa kwa Charpy V-notch impact pa -196°C kwa zinthu za thupi/bonnet
✔Kuyesa kuuma kwa ntchito zogwiritsidwa ntchito ndi sour (malinga ndi NACE MR0175)
✔Ma castings onse 100% PT ndi UT adayang'aniridwa kuti awone zolakwika
3. Kutsatira Miyeso ndi Magawo a Dimensional Range
| Chinthu | Kufotokozera |
|---|---|
| Muyezo wa Kapangidwe | BS 6364, API 600, API 6D, ASME B16.34, MSS SP-134 |
| Mtundu | Bolnet Yokhala ndi Bolti, OS&Y (Mtengo Wokwera) kapena Mtengo Wosakwera |
| 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 (BW pa ASME B16.25), Socket Weld |
| Maso ndi Maso | ASME B16.10, API 6D |
| Kutuluka kwa Mbalame Zothawa | ISO 15848-1 (Kalasi A kapena B) |
| Kuthamanga | ASME B16.34, ASTM A320/A194 |
| Kuyesa kwa Cryogenic | BS 6364, MSS SP-134 |
| Kuyesa kwa Madzi | API 598 |
| Kuchitapo kanthu | Gudumu lamanja, Giya, Pneumatic, Magetsi |
Zinthu Zofunika Pakapangidwe malinga ndi BS 6364 ndi API 600:
Kutalika kwa bonnet yotalikirapo kumaonetsetsa kuti kulongedza kukuchitika kutentha koyenera (kofunikira kwa ≤ -101°C)
l Mbali yakumbuyo ya mpando wachiwiri kwa kubwezeretsedwa kwa chisindikizo cha tsinde
Chipata cholimba cha Stellite ndi malo otsekera mipando
l Chipata cha Wedge (cholimba kapena chosinthasintha) kapena kapangidwe ka slide kofanana
l Mphete zosinthira mipando kuti zikhale zosavuta kukonza
4. Makonzedwe Omwe Akupezeka - Valavu ya Chipata cha Cryogenic (-196°C)
| Kukula | Kalasi Yopanikizika | Zinthu Zofunika pa Thupi | Mtundu wa Chipata | Kulumikiza Komaliza | Kuchitapo kanthu | Ntchito Yachizolowezi |
|---|---|---|---|---|---|---|
| 1/2" – 2" | CL150-2500 | A182 F304L/F316L | Mphepete | SW/NPT/BW | Gudumu lamanja | Kukonza zida, mizere yoyesera |
| 2" – 8" | CL150-2500 | A351 CF3/CF3M | Mphepete | Flange/BW | Gudumu lamanja/Zida | Chomera cha LNG, ASU yodzipatula |
| 2" – 8" | CL150-600 | A352 LCB/LCC | Mphepete | Flange/BW | Gudumu lamanja | Malo olandirira LNG |
| 6" – 24" | CL150-900 | A351 CF3/CF3M | Wedge/Pamodzi | Flange/BW | Zida | Mizere yayikulu yosamutsira LNG |
| 6" – 24" | CL150-600 | A352 LCB/LCC | Mphepete | Flange/BW | Zida | Utumiki wa chitsulo cha kaboni chotentha pang'ono |
| 12" – 42" | CL150-300 | A351 CF3/CF3M | Slide Yofanana | Flange/BW | Zida/Zamagetsi | Malo osungiramo zinthu a LNG |
| 2" – 48" | CL150-2500 | A351 CF3M | Slide Yofanana | BW yokha | Zida/Zamagetsi | Kupanikizika kwakukulu |
Makonzedwe apadera kunja kwa ma range awa amapezeka ngati muwapempha. Pa kukula kwa ≥ 2" mu ntchito ya mapaipi, kapangidwe ka API 6D kamagwira ntchito.
Zinthu Zofunika Kwambiri Pakupanga - Chipata cha Wedge (Makulidwe ≤ 24"):
l Wedge yolimba ya kukula kocheperako, wedge yosinthasintha ya kukula kwakukulu
l Kapangidwe ka mpando wodziyimira pawokha
l Low ntchito torque
l Kugwira ntchito bwino kwambiri
Zinthu Zofunika Kwambiri Pakapangidwe - Parallel Slide (Makulidwe ≥ 12"):
l Lower opaleshoni torque kwa kukula kwakukulu
l Kapangidwe ka mpando woyandama kuti utenthetsere njinga
l Kusindikiza kwapamwamba kwambiri kutentha kwa cryogenic
l kawiri block ndi bleed liability
5. Miyezo Yofanana ya Ma Valves a Chipata cha 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 |
| API 600 | Ma valve a zipata zachitsulo zamafakitale a mafuta ndi gasi | Muyezo wa kapangidwe ka valavu ya chipata |
| API 6D | Mafotokozedwe a ma valve a mapaipi ndi mapaipi | Muyezo wa valavu ya chipata cha payipi |
| ASME B16.34 | Ma valve - opindika, opindika, ndi opindika | Maziko a kuwerengera kutentha ndi kuthamanga kwa mpweya |
| MSS SP-134 | Muyezo wa ma valve a ntchito ya cryogenic | Muyezo wa valavu ya cryogenic ku US |
| 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 oyeretsera madzi a LNG, zida zonyamulira katundu za LNG, mayunitsi olekanitsa mpweya (ASU), mapaipi a okosijeni/madzi amadzimadzi, ntchito ya haidrojeni yamadzimadzi, malo oyeretsera madzi a ethylene ndi propylene, ntchito ya methanol yotsika kutentha, kukonza mpweya wa cryogenic, ntchito ya helium yamadzimadzi, ziwiya zosungiramo cryogenic, mapaipi ozizira, ntchito zazikulu zotseka cryogenic.
6. Njira Yopangira - Valavu ya Chipata cha Cryogenic (-196°C)
Womic Steel imagwiritsa ntchito njira zapadera zopangira ma valve a chipata cha cryogenic poyang'ana kwambiri kuyenerera kwa zinthu, chithandizo cha cryogenic chozama, Stellite hardfacing, ndi 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, chipata, ndi tsinde mpaka tolerances yeniyeni
l Makina apadera a chipata ndi mipando yosindikiza pamwamba
l Kumaliza kwa malo otsekera okonzedwa kuti azigwira ntchito zolimba
Gawo 3: Kuteteza Zovala Zolimba Kwambiri (Chofunika Kwambiri Polimbana ndi Kuwonongeka)
Malo otsekera zipata ndi mipando okhala ndi nkhope zolimba ndi aloyi ya Stellite (Stellite 6 kapena 21)
l Hardfacing yogwiritsidwa ntchito ndi PTA (Plasma Transfer Arc) kapena TIG welding
l makulidwe a Hardfacing: osachepera 1.5mm pambuyo pa machining
l Chithandizo cha kutentha pambuyo pa weld kuti muchepetse kupsinjika
l Kukonza malo olimba mpaka miyeso yomaliza ndi kutha kwa pamwamba
Gawo 4: Chithandizo cha Deep Cryogenic (Chofunika Kwambiri pa -196°C)
l Zigawo zonse zofunika kwambiri zimathandizidwa ndi cryogenic therapy pa -196°C (madzimadzi a nayitrogeni)
l Nthawi yochepa yonyowetsa: maola 8 pa BS 6364 (nthawi zambiri maola 8-12)
l maulendo angapo a castings zazikulu kapena zovuta
Cholinga: Sinthani austenite yosungidwa, kuchepetsa kupsinjika kotsalira, kuonetsetsa kukhazikika kwa mawonekedwe
Kutsatiridwa ndi tempering kuti abwezeretse ductility
Gawo 5: 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
l Kukhazikitsa ndi kulinganiza mphete ya mpando
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 6: Kuyang'anira Musanayambe Kuyesa
Kutsimikizira miyeso yonse yofunika pa ASME B16.34
l Kutsimikizira kwa torque ya bolting
l Kuyesa mpando wa pneumatic (kuthamanga pang'ono) musanayesere hydrostatic
Gawo 7: 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 wopanikizika pang'ono (0.5-0.7 MPa)
Palibe kutayikira kooneka pa zinthu zotsekedwa
Gawo 8: 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 komwe kumayesedwa (≤ 0.1 cc/min pa inchi imodzi ya m'mimba mwake wa mpando)
l Palibe kuwonongeka kapena kupotoza komwe kumaloledwa
Gawo 9: 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 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 600: wopanga, kukula, kalasi yokakamiza, zinthu, kutentha, sitampu yoyesera, nambala yotsatizana
Kukonzekera ndi kuwunikanso zikalata
7. Njira Zowongolera Ubwino ndi Kuyesa Valavu ya Chipata cha Cryogenic (-196°C)
| Gawo | Njira Yowunikira | Cholinga |
|---|---|---|
| Zopangira | 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 |
| Pambuyo pa Stellite Hardfacing | Mayeso a Kuuma | Tsimikizani mtundu ndi kuuma kwa hardfacing |
| Pambuyo pa Hardfacing | Kuyendera kwa PT | Dziwani ming'alu kapena ma porosity olimba |
| 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 chitsimikizo cha magwiridwe antchito |
| Valavu Yomalizidwa | Mayeso Otulutsa Mpweya Wothawa (malinga ndi ISO 15848-1) | Kukhulupirika kwa chisindikizo chotsika |
| 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 wothamanga kwambiri
l Kuyesa kwa Thermal Shock pa EN 12567
Kutsatira malamulo a ATEX pamlengalenga wophulika
l NACE MR0175 kutsatira malamulo a ntchito ya sour
8. Ntchito Zoyambira - Valavu ya Chipata cha 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 ma valve a chipata cha cryogenic kuti azitha kusungidwa bwino. Ma valve akuluakulu (mpaka 42") amagwiritsidwa ntchito polowetsa ndi kutulutsa katundu m'tanki.
l Zomera Zothira Madzi za LNG:Mpweya wachilengedwe umaziziritsidwa kufika pa -162°C kuti ukhale ndi madzi. Ma valve a cryogenic gate amapereka malo olekanitsira kutentha, olekanitsa, ndi mizati yogawa.
l Zida Zonyamulira za LNG:Mukatsegula kuchokera ku terminal kupita ku chonyamulira cha LNG, ma valve a cryogenic gate amapereka kutseka kwadzidzidzi komanso kusiyanitsa kuyenda kwa madzi. Ma valve akuluakulu okhala ndi kapangidwe ka API 6D amatchulidwa.
l Ma Unit Olekanitsa Mpweya (ASU):Nayitrogeni yamadzimadzi (-196°C), mpweya wamadzimadzi (-183°C), ndi argon yamadzimadzi (-186°C) kupanga ndi kugawa. Ma valve a chipata amapereka njira yodalirika yochotsera ndi kusungira zinthu.
l Utumiki wa Haidrojeni ya Madzi:Hydrojeni yamadzimadzi pa -253°C imafuna ma valve apadera a cryogenic gate okhala ndi maboneti otambalala komanso kapangidwe ka chitsulo chosapanga dzimbiri chopangidwa ndi austenitic.
l Zomera za Ethylene ndi Propylene:Kugwiritsa ntchito kutentha kochepa pa -40°C mpaka -104°C. Ma valve a cryogenic gate ndi okhazikika m'magawo ozizira a ethylene ndi ma circuits a propylene.
l Ziwiya Zosungiramo Zinthu Zobisika:Kutulutsa thanki ndi malo olowera m'matanki osungiramo zinthu zobisika kumafuna kutsekedwa kodalirika kwa valavu ya chipata ndi mipando yolimba ya Stellite kuti ikhale nthawi yayitali.
l Mapaipi a Mabokosi Ozizira:Mapaipi amkati a chipangizo cholekanitsa mpweya pogwiritsa ntchito bokosi lozizira amagwiritsa ntchito ma valve a chipata cha cryogenic kuti azitha kusiyanitsa zinthu.
l Ntchito Zazikulu Zotseka Cryogenic:Ma valve a pachipata ndi omwe amakondedwa kwambiri pa ntchito zazikulu zodzipatula komwe kumafunika kutsika kwa mphamvu yotsika komanso kutsekedwa bwino.
9. Kupaka ndi Kutumiza - Valavu ya Chipata cha Cryogenic (-196°C)
Kupaka:
l Chitetezo:Ma valve onse okulungidwa ndi pepala loletsa dzimbiri kapena pepala la VCI. Ma Flange ndi maulumikizidwe omalizira ophimbidwa ndi zipewa zapulasitiki kapena ma flange achitsulo.
l Chitetezo Chomaliza:Zipewa zapulasitiki za malekezero a SW; ma flange achitsulo okhala ndi ma gasket a malekezero opindika. Malekezero opindika a matako otetezedwa ndi zipewa zapulasitiki kapena zachitsulo.
l Mabokosi a Matabwa:Pa ma valve ang'onoang'ono, 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 ma valve akuluakulu (> 12"), ma crack achitsulo osiyana okhala ndi zothandizira zopindika. Ma valve omangiriridwa ndi bolt ku crack.
l Chotsukira mano:Matumba a desiccant a silica gel amaikidwa mkati mwa mabokosi kuti atenge chinyezi.
Manyamulidwe:
l Njira yoyendera:Kunyamula katundu wa pandege wa ma valve ofunikira; katundu wa panyanja wa ma valve akuluakulu ndi maoda akuluakulu.
l Kuyika zinthu mu chidebe:Ma valve ang'onoang'ono amaikidwa mu mapaleti ndikuyikidwa m'zidebe; ma valve akuluakulu m'zidebe zokhazikika.
l Kuchuluka kwa ndalama:Ma valve akuluakulu kapena olemera kwambiri (> 24" kapena > 5 matani) amatumizidwa payekhapayekha pa zombo zosweka.
l Zolemba:Bokosi lililonse lolembedwa ndi nambala ya chizindikiro cha valavu, kukula, kalasi ya kupanikizika, zinthu, nambala yotsatizana, ndi malangizo ogwiritsira ntchito.
Zolemba Zoperekedwa ndi Kutumiza Kulikonse:
Satifiketi Yoyesera ya Mill (EN 10204 Mtundu 3.1; Mtundu 3.2 mukapempha)
Lipoti la Mayeso a Hydrostatic
Lipoti la Mayeso a Cryogenic Performance Test pa BS 6364
Lipoti Loyesa Kutulutsa Mpweya Wothawa (ngati kuli koyenera)
l Lipoti la Mayeso a Stellite Hardfacing
Malipoti Oyesera Zinthu (kuphatikiza kukhudzidwa kwa Charpy pa -196°C)
Malipoti a Mayeso a PMI
l Mbiri Yothandizira Kuzindikira Kwambiri
Malipoti a NDE (PT, UT)
Mndandanda Wolongedza, Invoice Yamalonda, Bilu Yonyamula, Satifiketi Yoyambira
Chilengezo cha Kuchita Bwino cha CE
10. Ubwino ndi Mafunso Ofunsidwa Kawirikawiri pa Chitsulo cha Womic - Valavu ya Chipata cha Cryogenic (-196°C)
N’chifukwa Chiyani Muyenera Kugwirizana ndi Womic Steel pa Ma Valves a Cryogenic Gate?
✔ Kukula Konse: 1/2" – 48" (DN15 – DN1200), Kalasi 150 – Kalasi 2500.
✔ Chipata ndi Mpando wa Stellite Hardfaced - muyezo wa ma valve onse a chipata chobisika, zomwe zimapangitsa kuti ntchito ikhale yayitali.
✔ Chithandizo cha Deep Cryogenic pa -196°C - chimatsimikizira kukhazikika kwa muyeso (malinga ndi BS 6364).
✔ Kugwira ntchito kotsimikizika kwa cryogenic - ma valve 100% oyesedwa pa -196°C pa BS 6364 iliyonse.
✔ Kapangidwe ka bolti yokhala ndi mabolt - kutseka kodalirika komanso kosavuta kukonza.
✔ Boneti yotambasulidwa yokhala ndi mbale yothira madzi - yokhazikika pama valve onse a chipata chobisika.
✔ Utsi wotsika wotuluka - ISO 15848-1 Kalasi A kapena B yolongedza.
✔ Kusankha zinthu zogwirira ntchito: LCB, LCC, CF3, CF3M, CF8, CF8M.
✔ Mapangidwe a zipata zolumikizirana kapena zolumikizirana - zopangidwa bwino kuti zigwirizane ndi kukula ndi momwe ntchito ikuyendera.
✔ Chizindikiro cha PED 2014/68/EU CE.
✔ Yavomerezedwa ndi kalasi - ABS, DNV, LR, BV, CCS.
✔ Nthawi yopikisana yotsogolera: masabata 10-14 a makonzedwe wamba, masabata 16-22 a mapangidwe akuluakulu.
Mafunso Ofunsidwa Kawirikawiri (Mafunso Ofunsidwa Kawirikawiri) - Valavu ya Chipata cha Cryogenic (-196°C)
Q: Kodi pali kusiyana kotani pakati pa valavu ya chipata cha cryogenic ndi valavu yachipata yokhazikika?
Yankho: Ma valve a chipata cha cryogenic ali ndi zinthu zingapo zofunika zomwe sizipezeka mu ma valve wamba: bonnet yotambasulidwa yokhala ndi mbale yothira madzi kuti iteteze zisindikizo za tsinde; chithandizo cha cryogenic cha zigawo zonse; chipata cholimba cha Stellite ndi malo otsekera mipando kuti asawonongeke; zipangizo zapadera zolimba kutentha kochepa; kulongedza mpweya wochepa wothawa; ndi mayeso ofunikira a cryogenic malinga ndi BS 6364. Ma valve a chipata wamba nthawi zambiri amakhala ndi maboneti osatambasulidwa, malo otsekera osalimba, komanso palibe mayeso a cryogenic.
Q: Kodi kutentha kochepa kwambiri kwa ma valve anu a cryogenic gate ndi kotani?
A: Ma valve athu okhazikika a cryogenic gate amayesedwa kuti agwiritsidwe ntchito pa -196°C (kutentha kwa nayitrogeni wamadzimadzi) pa BS 6364. Pa ntchito yamadzimadzi ya hydrogen (-253°C) kapena yamadzimadzi ya helium (-269°C), timapereka mapangidwe apadera okhala ndi zinthu zosinthidwa ndi zisindikizo.
Q: Kodi chithandizo cha deep cryogenic n'chiyani ndipo n'chifukwa chiyani chikufunika?
A: Kuchiza ndi cryogenic kwambiri ndi njira yoziziritsira zigawo za valavu kufika pa -196°C kwa maola osachepera 8. Izi zimasintha austenite yosungidwa, zimachepetsa kupsinjika kotsala, ndikutsimikizira kukhazikika kwa magawo kutentha kwa ntchito. BS 6364 imafuna chithandizo cha cryogenic kwambiri cha mavalavu okhala ndi kutentha kwa ntchito ≤ -101°C.
Q: Kodi Stellite hardfacing ndi chiyani ndipo imagwiritsidwa ntchito chifukwa chiyani?
Yankho: Kulimba kwa Stellite ndi kugwiritsa ntchito alloy ya cobalt-chromium yosatha (Stellite 6 kapena 21) pamalo otsekera zipata ndi mipando. Izi zimapereka kulimba kwabwino kwambiri, zimaletsa kuuma ndi kugwidwa ndi kutentha kwa cryogenic, komanso zimawonjezera nthawi yogwira ntchito ya ma valvu kwambiri. Kulimba kwa Stellite ndi chinthu chodziwika bwino cha ma valvu a cryogenic gate pa API 600 iliyonse.
Q: Kodi pali kusiyana kotani pakati pa mapangidwe a chipata cha wedge ndi mapangidwe a chipata cha parallel slide?
A: Ma valve a chipata cha wedge (olimba kapena osinthasintha) nthawi zambiri amagwiritsidwa ntchito pa kukula mpaka 24" ndipo amapereka magwiridwe antchito abwino kwambiri otseka. Ma valve a chipata choyandama (mipando yoyandama) amagwiritsidwa ntchito pa kukula kwakukulu (≥ 12") ndipo amachepetsa mphamvu yogwirira ntchito pamene akusunga magwiridwe antchito abwino kwambiri pakuyendetsa njinga yamagetsi.
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 gate isanatumizidwe.
Q: Kodi mumapereka ma phukusi otsika otulutsa mpweya woipa?
A: Inde. Ma valve athu onse a cryogenic gate ali ndi ma packing otsika otulutsa mpweya omwe amayesedwa motsatira ISO 15848-1. Tikhoza kupereka satifiketi ya Class A kapena Class B kutengera zomwe mukufuna.
Q: Kodi mungapereke ma valve a chipata cha cryogenic mogwirizana ndi malamulo a NACE MR0175?
A: Inde. Pa ntchito zoyezera cryogenic (LNG yokhala ndi H2S kapena ethylene yokhala ndi H2S), timapereka ma valve a cryogenic gate 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 cryogenic gate ndi iti?
A: Nthawi yokhazikika yoperekera zinthu ndi masabata 10-14 pakusintha kokhazikika (kukula ≤ 24", Gulu 150-600). Pa kukula kwakukulu (> 24") kapena kuthamanga kwambiri (Gulu 900+), nthawi yoperekera zinthu ndi masabata 16-22. Maoda ofulumira angapezeke pa kuchuluka kochepa.
Q: Kodi mumapereka mphamvu zogwiritsira ntchito ma valve a chipata cha cryogenic?
A: Inde. Timapereka ntchito yamanja pogwiritsa ntchito chiwongolero cha dzanja kapena chogwiritsira ntchito giya, kuyendetsa kwa pneumatic (kubwerera kwa spring kapena kuchita kawiri), kuyendetsa kwamagetsi (kutseka kapena kusintha), ndi kuyendetsa kwa hydraulic. Ma actuator onse ndi a kukula kuti apereke mphamvu yokwanira pa kutentha kwa cryogenic.
Zochitika pa Pulojekiti & Kafukufuku wa Nkhani - Valavu ya Chipata cha Cryogenic (-196°C)
Pulojekiti:Nyumba Yatsopano Yonyamula LNG - COSCO Shipping, China
Muyezo ndi Giredi:BS 6364, API 600, API 6D
Mafotokozedwe ndi Kuchuluka:
Ma Valves a Chipata cha Cryogenic a l 30" (DN750), Gulu 150, Thupi la CF3M, Slide Yofanana, Stellite Hardfaced - mayunitsi 4
Ma Valves a Chipata cha Cryogenic a l 20" (DN500), Gulu 150, Thupi la CF3M, Chipata cha Wedge, Chipata Cholimba cha Stellite - mayunitsi 8
Ma Valves a Chipata cha Cryogenic a 12" (DN300), Gulu 300, Thupi la CF3M, Chipata cha Wedge, Stellite Hardfaced – mayunitsi 16
Ma Valves a Chipata cha Cryogenic a l 8" (DN200), Gulu 300, Thupi la CF3M, Chipata cha Wedge, Stellite Hardfaced – mayunitsi 24
Ma Valves a Chipata cha Cryogenic a l 4" (DN100), Gulu 300, Thupi la CF3M, Chipata cha Wedge, Stellite Hardfaced – mayunitsi 32
Ma Valves a Chipata cha Cryogenic a l 2" (DN50), Gulu 600, A182 F316L, Chipata cha Wedge, Stellite Hardfaced – mayunitsi 48
Zonse:Mayunitsi 132
Kagwiritsidwe:Kupatula thanki yonyamula katundu ya LNG, kutseka chingwe chachikulu cha katundu, ndi kupatula mkono wonyamula katundu. Kutentha kwa ntchito: -162°C (LNG), kuthamanga kwa kapangidwe: 1.6-4.0 MPa. Boneti yotambasulidwa yokhala ndi mbale yothira madzi, yoyendetsedwa ndi giya (yogwiritsidwa ntchito pamanja). Kapangidwe kotetezeka pamoto pa API 6FA, kulongedza kotsika kwa mpweya wotuluka motsatira ISO 15848-1 Class B. ABS ndi mtundu wa DNV zovomerezeka.
Mavuto ndi Mayankho a Ukadaulo:
1. Ma valve akuluakulu (30") a chingwe chachikulu chonyamulira katundu cha LNG– Ma valve a chipata chotsetsereka cha mainchesi 30 ofunikira kuti thanki yonyamula katundu ya LNG ichotsedwe. Kukula kwakukulu kumafuna makina apadera komanso kusonkhanitsa. Ma valve a chipata chotsetsereka chotsetsereka choyendetsedwa ndi magetsi okhala ndi mipando yoyandama kuti itenthe. Ma valve onse anayi adapambana mayeso a cryogenic pa -162°C popanda kutayikira konse.
2. Cholimba cha Stellite chomwe chingagwiritsidwe ntchito nthawi yayitali– Ma valve onyamula LNG amagwiritsidwa ntchito pafupipafupi (kutsegula/kutseka nthawi iliyonse yokweza/kutsitsa). Chipata cholimba cha Stellite 6 choperekedwa ndi Womic ndi malo okhala ndi mipando ya ma valve onse 132. Kukhuthala kwa ma valve: 2.0mm mutagwiritsa ntchito. Kulimba: HRC 38-45.
3. Kuvomerezedwa kwa mtundu wa gulu la kalasi (ABS ndi DNV)– Ma valve onyamula LNG amafunika kuvomerezedwa ndi mtundu wa ABS ndi DNV motsatira IGC Code (International Gas Carrier Code). Womic ikugwirizana ndi ofufuza a ABS ndi DNV kuti ayesedwe kuvomerezedwa ndi mtundu kuphatikizapo cryogenic performance, hydrostatic, ndi mayeso othawa. Zikalata zovomerezeka ndi mtundu zimaperekedwa mkati mwa masiku 60.
4. Chithandizo cha cryogenic chakuya cha castings zazikulu (thupi la 30")– Ma castings akuluakulu a CF3M (thupi la 30") omwe amatha kugwidwa ndi austenite yosungidwa. Womic adachita chithandizo cha cryogenic cha magawo atatu (-196°C, maola 12 pa nthawi iliyonse). Kuyang'anitsitsanso kwa miyeso kunatsimikizira kuti palibe kusokonekera pambuyo pa chithandizo.
5. Kulongedza mpweya wochepa wotuluka chifukwa chotsata malamulo a chilengedwe– Zonyamula LNG zimagwira ntchito m'malo omwe ali ndi vuto la chilengedwe lomwe limafuna ISO 15848-1 Class B packing. Womic imapereka graphite yotulutsa mpweya wochepa yokhala ndi kapangidwe ka bonnet kotalikirapo komwe kumatsimikizira kutentha kwa paketi kumakhalabe pamwamba pa -20°C.
6. Wofufuza wa ABS ndi DNV adawona mayeso– Ma valve onse 132 omwe amafunikira ABS ndi DNV surveyor adawona mayeso ku Womic's facility. Womic adagwirizanitsa nthawi yoyesera ndi magulu onse awiri. Kuyesa kunachitika mkati mwa masiku 30. Palibe kuyesedwanso komwe kumafunika.
7. Kutumiza nthawi yake kwa nthawi yomanga kampani yonyamula katundu ya LNG- Ndondomeko yomanga yonyamula katundu wa LNG inkafunika kutumizidwa pang'onopang'ono kwa miyezi 8. Womic inatumiza ma valve onse 132 m'magawo 6, ndipo kutumiza kulikonse kunafika tsiku lomwe linafunika. Palibe kuchedwa kwa ndondomeko yomanga.
Zotsatira:Chonyamulira cha LNG chinafika bwino kwa mwiniwake mu 2023. Ma valve onse 132 a cryogenic gate akhala akugwira ntchito pa -162°C kwa zaka zoposa ziwiri popanda vuto lililonse lokonza. Woyang'anira mwiniwake anati: "Ma valve a cryogenic gate a Womic adagwira ntchito bwino panthawi yoyesa mpweya - sitinapeze madzi okwanira pa ma valve onse osungira thanki ya katundu." Kasitomala adapereka mgwirizano wa ma frame a ma valve 6 owonjezera a LNG.
Lumikizanani:
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 chipata cha cryogenic (-196°C) a zonyamulira za LNG, malo osungiramo LNG, mayunitsi olekanitsa mpweya, ndi ntchito zamagesi zamafakitale padziko lonse lapansi. Yavomerezedwa ndi ABS, DNV, LR, BV, ndi CCS.
Nthawi yotumizira: Juni-25-2026