Chikwama Chogwiritsira Ntchito Ma Valuvu Ofunika Paipi Yaitali ya "Pipeline ya Gasi ya Kumadzulo-Kum'mawa"

Zopangira ntchito: Ma valve a mpira olumikizidwa kwathunthu

Minda yogwiritsira ntchito: Mizere yayikulu yotumizira gasi wachilengedwe ndi malo oimikapo magalimoto mumzinda

Mbiri ya Pulojekiti

Chifukwa cha kukonza bwino kapangidwe ka mphamvu ku China komanso kukulitsa mwachangu maukonde a mapaipi a gasi, zofunikira kwambiri zaperekedwa kuti pakhale chitetezo, kutseka magwiridwe antchito komanso kulimba kwa zida zazikulu za mapaipi. Mapulojekiti a mapaipi a gasi achilengedwe akutali mdziko lonse ayenera kusankha zinthu zama valavu zomwe sizimataya madzi, sizimalimbana ndi dzimbiri komanso sizimakonza zinthu pansi pa mikhalidwe yovuta ya nthaka komanso malo opanikizika kwambiri kuti atsimikizire kuti mapaipi akugwira ntchito bwino nthawi yonse ya moyo wawo wazaka zoposa 30.

Yankho

Valavu yolumikizidwa bwino yopangidwa ndi kampani yathu yakhala imodzi mwa zida zofunika kwambiri pa ntchitoyi chifukwa cha zabwino zotsatirazi:

1. Kapangidwe ka valavu imodzi yolumikizidwa bwino: Thupi la valavu limapangidwa ndi kupangira ndi kulumikiza, popanda kulumikizana ndi mabotolo, zomwe zimachotsa chiopsezo cha kutuluka kwa madzi akunja ndikusinthasintha ku malo ovuta monga kutsika kwa nthaka ndi kusiyana kwakukulu kwa kutentha.

2. Kapangidwe kolimba kolimbana ndi dzimbiri: Chovala cha valavu chikugwirizana ndi muyezo wa ASTM A350, ndipo khoma lamkati limakutidwa ndi chophimba chotsetsereka kwambiri. Chimatha kupirira kupsinjika kwa PN100-Class600, chimalimbana ndi dzimbiri la hydrogen sulfide, ndipo chimayenera kugwiritsidwa ntchito ndi mpweya wachilengedwe woyeretsedwa/wosayeretsedwa.

3. Kugwirizana kwanzeru pakulamulira: Yokhala ndi ma actuator a hydraulic/electro-hydraulic, imathandizira kulumikizana kwa makina akutali a SCADA, zomwe zimathandiza kudula mwachangu ndikuwongolera malo ndi mayadi opanda anthu.

4. Bore yonse ndi kukana kuyenda bwino: Njira yoyendera ma valve ndi yofanana ndi chitoliro, kuonetsetsa kuti kuyenda bwino komanso kuchepetsa kugwiritsa ntchito mphamvu.

Zochitika zogwiritsira ntchito

● Chipinda chachikulu chotsekera magetsi: Chimodzi chimayikidwa makilomita 30 mpaka 50 aliwonse kuti chizimitsidwe mwadzidzidzi ngati pachitika ngozi ndi kukonza ndi kukonza gawo.

● Dongosolo lolamulira kuthamanga kwa mpweya pa siteshoni ya pachipata cha mzinda: Monga valavu yodzipatula yolowera ndi kutuluka pa siteshoni, imatsimikizira kukhazikika kwa mpweya wotuluka pansi pa siteshoni.

● Kuwoloka magawo apadera (mitsinje, madera a zivomerezi, madera a permafrost): Sinthani ma valve achikhalidwe a flange, kukulitsa kukana kwa zivomerezi komanso kusinthasintha kwa chilengedwe kwa gawo la chitoliro.

Deta yoyezedwa ya magwiridwe antchito

● Kutayikira kwa mpweya: Chisindikizo cha mpando wa valavu chadutsa mayeso okhazikika a API 6D & ISO 15859-1, zomwe zapangitsa kuti pasakhale kutuluka kwa mpweya m'njira ziwiri.

● Mayeso a moyo: Palibe kuwonongeka pakatha nthawi 10,000 yotsegulira ndi kutseka pa kutentha kwabwinobwino, ndipo chisindikizocho chimakhalabe bwino pakatha nthawi yozungulira kutentha kuyambira -46℃ mpaka 120℃.

● Kutsimikizira mphamvu: Ndapambana mayeso a 1.5 times pressure shell test ndi fatigue vibration test, motsatira muyezo wa dziko lonse wa GB/T 19672-2021.

Mtengo wa kasitomala

● Kukonza chitetezo: M'zaka khumi zapitazi, ma valve opitilira 200 agwiritsidwa ntchito mu payipi iyi, ndipo palibe ngozi yomwe yachitika chifukwa cha kusokonekera kwa mpweya komwe kwachitika chifukwa cha ma valve.

● Kukonza mtengo wonse: Kuyika m'manda sikufuna kuwunikira Zitsime, ndipo ndalama zosamalira zimachepetsedwa ndi 70% poyerekeza ndi ma valve achikhalidwe.

● Kusinthasintha kwa uinjiniya: Timapereka ntchito zonse zomwe zimachitika kuphatikiza mtunda wosiyana ndi malo omalizira, ma bevel odulira omwe adakonzedwa kale, ndi malangizo odulira omwe ali pamalopo, zomwe zimafupikitsa nthawi yomanga ndi 30%.

Kuzindikira mafakitale

Ma valve awa apeza National Special Equipment Manufacturing License (TS) ndi satifiketi ya EU CE/PED, ndipo agwiritsidwa ntchito bwino m'mapulojekiti odutsa malire monga China-Russia Eastern Pipeline ndi Central Asia Pipeline, zomwe zakhala njira yabwino kwambiri yopangira ma valve pamapaipi a gasi achilengedwe okhala ndi mphamvu zambiri komanso mainchesi akuluakulu.

Ukadaulo ulibe malire, koma chitetezo ndi chofunika kwambiri. Tipitiliza kufufuza mozama za zida zamagetsi, kuteteza kutsegula ndi kutseka kulikonse kwa mitsempha yamagetsi yapadziko lonse pogwiritsa ntchito luso lathu lapadera.