Ma valve a Cryogenic pazogwiritsa ntchito LNG

1. Sankhani valavu yothandizira cryogenic 

Kusankha valavu yogwiritsa ntchito cryogenic kumakhala kovuta kwambiri. Ogula ayenera kulingalira momwe zinthu zilili pabwalo komanso mufakitole. Kuphatikiza apo, mawonekedwe amadzimadzi a cryogenic amafunikira magwiridwe antchito a valavu. Kusankha moyenera kumatsimikizira kudalirika kwa chomera, kuteteza zida, ndi kugwira ntchito mosamala. Msika wapadziko lonse wa LNG umagwiritsa ntchito mapangidwe awiri akulu a ma valve.

Wogwiritsira ntchito ayenera kuchepetsa kukula kwake kuti akasunge mafuta achilengedwe ang'onoang'ono momwe angathere. Amachita izi kudzera mu LNG (gasi wamadzi, gasi wamadzi). Pozizira mpaka mpweya wachilengedwe umakhala wamadzi. -165 ° C. Kutentha uku, valavu yayikulu yodzipatula iyenerabe kugwira ntchito

2. Nchiyani chimakhudza kapangidwe ka valavu?

Kutentha kumakhudza kwambiri kapangidwe ka valavu. Mwachitsanzo, ogwiritsa ntchito angafunike kumadera otchuka monga Middle East. Kapenanso, itha kukhala yoyenera kumadera ozizira monga nyanja zam'madzi. Madera onsewa atha kukhudzika ndi kukhazikika kwa valavu. Zigawo za mavavu awa ndizophatikizira thupi la valavu, bonnet, tsinde, chidindo, tsinde la valavu ndi mpando wa valavu. Chifukwa cha kapangidwe kazinthu zakuthupi, zigawozi zimakulira ndikumagwira mosiyanasiyana kosiyanasiyana.

Zosankha zogwiritsa ntchito Cryogenic

Njira 1:

Ogwiritsa ntchito amagwiritsa ntchito mavavu m'malo ozizira, monga zida za mafuta m'madzi ozizira.

Njira 2:

Ogwiritsa ntchito amagwiritsa ntchito mavavu kuthana ndi madzi omwe samazizira kwambiri.

Pankhani ya mpweya woyaka kwambiri, monga gasi kapena mpweya, valavu iyeneranso kugwira ntchito moyenera pakabuka moto.

3. Kupanikizika

Pali kumangika kwapanikizika pakuwongolera mufiriji. Izi ndichifukwa chakuchulukirachulukira kwachilengedwe komanso kupangika kwa nthunzi. Chisamaliro chapadera chiyenera kutengedwa popanga valavu / mapaipi. Izi zimalola kukakamizidwa kukulirakulira.

4. Kutentha

Kusintha kwakanthawi kofulumira kumakhudza chitetezo cha ogwira ntchito ndi mafakitale. Chifukwa cha kapangidwe kazinthu zosiyanasiyana komanso kutalika kwa nthawi yomwe amapatsidwa refrigerant, gawo lililonse la valavu ya cryogenic limakulitsa ndi mgwirizano pamitengo yosiyanasiyana.

Vuto lina lalikulu mukamagwiritsa ntchito mafiriji ndikutentha kwa chilengedwe. Kuwonjezeka kwa kutentha ndi komwe kumapangitsa opanga kudzipatula mavavu ndi mapaipi

Kuphatikiza pa kutentha kwakukulu, valavu iyeneranso kuthana ndi zovuta zambiri. Pa liquefied helium, kutentha kwa gasi wamadzimadzi kutsikira ku -270 ° C.

5. Ntchito

Mosiyana ndi izi, ngati kutentha kumagwa mpaka zero, ntchito yamagetsi imakhala yovuta kwambiri. Mavavu a Cryogenic amalumikiza mapaipi ndi mpweya wamadzi ku chilengedwe. Imachita izi kutentha kozungulira. Zotsatira zake zimakhala kusiyanasiyana kwa kutentha mpaka 300 ° C pakati pa chitoliro ndi chilengedwe.

6. Kuchita bwino

Kusiyana kwamatenthedwe kumapangitsa kutentha kutuluka kuchokera kumadera ofunda kupita kumalo ozizira. Idzawononga ntchito yanthawi zonse ya valavu. Zimathandizanso kuti magwiridwe antchito azikhala ovuta kwambiri. Izi ndizofunikira kwambiri ngati ayezi amatha kumapeto kotentha.

Komabe, pakugwiritsa ntchito kutentha pang'ono, njira yotenthetsera imeneyi imapangidwanso mwadala. Njirayi imagwiritsidwa ntchito kusindikiza tsinde la valavu. Kawirikawiri, tsinde la valve limasindikizidwa ndi pulasitiki. Zipangazi sizingalimbane ndi kutentha pang'ono, koma zisindikizo zazitsulo zomwe zimagwira bwino kwambiri, zomwe zimayenda mozungulira, ndizokwera mtengo kwambiri komanso zosatheka.

7. Kusindikiza

Pali yankho losavuta kwambiri pamavuto awa! Mumabweretsa pulasitiki yomwe imagwiritsidwa ntchito kusindikiza tsinde la valavu kudera lomwe kutentha kumakhala kofala. Izi zikutanthauza kuti kusindikiza kwa tsinde la valavu kuyenera kusungidwa patali ndi madzi.

8.Three kuchepetsa makina olimba odzipatula valavu

Zolakwitsa izi zimalola valavu kuti izitseguka ndikutseka. Amakhala ndi mikangano yochepa kwambiri pakamagwira ntchito. Imagwiritsanso ntchito makoko a tsinde kuti valavu ikhale yolimba. Limodzi mwamavuto osunga malo a LNG ndi malo osokonekera. M'mimbayi, madzi amatha kutupa kwambiri nthawi zopitilira 600. Valavu yoyenda mozungulira itatu imathetsa vutoli.

9. Mavavu osakwatira komanso awiri osokoneza

Ma valve awa ndi gawo lofunikira pazida zamadzimadzi chifukwa zimapewa kuwonongeka komwe kumachitika chifukwa chakubwerera m'mbuyo. Zofunika ndi kukula ndizofunikira chifukwa ma cryogenic valavu ndiokwera mtengo. Zotsatira za ma valve olakwika zitha kukhala zowopsa.

Kodi mainjiniya amaonetsetsa bwanji kuti kulimba kwa ma valve a cryogenic?

Kutuluka ndiokwera mtengo kwambiri mukaganizira za mtengo woyamba kupanga mpweya kukhala mufiriji. Ndizowopsa.

Vuto lalikulu ndi ukadaulo wa cryogenic ndikuthekera kwa kutayikira kwa mpando wa valavu. Ogula nthawi zambiri amanyalanyaza kukula kwa thunthu poyerekeza ndi thupi. Ngati ogula asankha valavu yoyenera, amatha kupewa mavuto omwe ali pamwambawa.

Kampani yathu imalimbikitsa kugwiritsa ntchito mavavu otsika otentha opangidwa ndi chitsulo chosapanga dzimbiri. Pakugwira ntchito ndi gasi wamadzimadzi, zinthuzo zimayankha bwino pama gradients otentha. Ma valve a Cryogenic ayenera kugwiritsa ntchito zida zosindikizira zoyenera ndikumangika mpaka 100 bar. Kuphatikiza apo, kukulitsa bonnet ndichinthu chofunikira kwambiri chifukwa kumatsimikizira kukhathamira kwa tsinde.


Post nthawi: May-13-2020