YEVACUUM JACKETED PIPING SYSTEM
VACUUM BAYONETKUSVIRANATYPE NEFLANGES NEBHUTI
The Installation Precautions
Iye VJP(vacuum jacketed piping)inofanira kuiswa panzvimbo yakaoma pasina mhepo isati yaiswa.Thekunzekurongedzalayer yeVJP haigonebe opened, kudzivirira chubhu kupinda mumiviri yekunze (jecha, zvipenyu zviduku, nezvimwewo).Mukunaya kwemvura kana kwenguva refuwetmamiriro ekunze, zvakare inofanirwa kubhadhara zvakanyanya kune mukati mepombi isina mvura.
Zvinorambidzwa kushandisa VJP zvakananga sewelding electrode, rova arckana welding paVJP.
Iye VJPkurongedzalayer haigone kubviswa kusvika pombi yaiswa kudzivirira kuparara kwewelding mune dzimwe nzvimbo.
Munguva yese yekuisa maitiro, VJP inofanira kunyatsobatwa.Chengetedza magumo oseyeVJP, usashandise iyovacuummubatanidzwa paVJP (mufananidzo 1 uye 3) senzvimbo yekumanikidza kudzivirira kubuda kwevacuum.
Paunenge uchiisa, teerera kune kuvimbika kwekusimudza, usadonha uye kukuvadza kana kukuvara.
Matanho ekuiswa kweVJP
1. Checkthedrawings, kana uwandu uye dimensionzvemapombipamifananidzo zvakafananapamwethepombi dzemumunda.Bisati yaiswa, tsvagakunzeVJP imwe neimwe maererano nekudhirowa uyenhamba.Muenzaniso:HL2018GLN-59-02-01, zvinoreva kuti kodhi yeprojekiti ndeye 59, liquid nitrogen medium, pombiAihwa.01 yemutsaraAihwa.02. Zita resimbi rine izvinhambayakanamirwa kuVJP panzvimbo (mufananidzo 1), uye zita remagetsi rekuora rinosungirirwa.pedyo nejoint vacuum ontheVJP(mufananidzo 2).
Cherechedza: thequantityuye Kwete.yepombi mukudhirowa inofanira kunge yakafanana neyequantityuyeAihwa.yeVJPspanzvimbo.Kana paine chero mutsauko mukutarisa, ita shuwa kubata vashandi vedu pasaiti.
2. Mushure mekutarisa huwandu hweVJP uyeAihwa.,maererano nemifananidzo, kufambaiye VJPspabhaketi rinoenderanas/zvinotsigirakana nzvimboVJPspasi pedyo nebhuraketi rinoenderanas/zvinotsigira.
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4. Chenesa majoini emukadzi murumeextensionpombi, chisimbisozvindoriuye inotonhora seal unit ine mafuta-isina uye mvura-isina reagent.
5. Pinza pombi yekuwedzera yechirume neyechikadzi nehorizontally uye zvishoma nezvishoma.Wobva wadhonza maflange maviri uye wodzvanya, woisa mabhaudhi ese pamaflange (usaasunge izvozvi).
6. Mushure mekuona nzvimbo yakarurama yezvipfeko zviviri, simbisa mabhoti nhanho nhanho.Ita shuwa kuti flange inochengetwa yakaenzana panguva yekuisa
7. Tarisa kuti flange tightening inokodzera here.
8. Theinterval of two support is 3m, PTFE plate inofanira kuiswa pakati penzvimbo yekutsigira uyekunzepombi.
Details for Operation & Maintenance
1. Vashandi vanofanirwa kunge vachiziva nezveshandakuyereras pakati pemidziyo muhurongwa. Zvinofanira kuzivikanwa kuti liquid okisijeni, liquid nitrogen uye liquid argon ari cryogenic zvinwiwa.Kana iyo ambient tembiricha yakakwira kupfuura iyo yekubikira, ivo vanozove vakasikwagasifyuye kudzvinyirirwa, zvichikonzera kuwedzera zvishoma nezvishoma mukumanikidzwa muVJP uye zvinoenderanamidziyo.
2. Precooling yeVJP isati yashandiswa
Sezvo iyo VJP isina kushandiswa iri pane ambient tembiricha, pombi inozadzwa nemhepo ine hunyoro.Nokudaro, chinangwa chekutanga kutonhora ndechekuti: kutanga, kuderedza zvishoma nezvishoma kupisa kweVJP kusvika kune tembiricha ye cryogenic liquid, kuitira kuti udzivise kusangana kwakananga kwehuwandu hwemvura yakawanda ye cryogenic nepombi yekushisa yakajairwa, ichiita nokukurumidza. uye huwandu hukuru hwegasi, zvichikonzera kukurumidza kudzvanywa kweVJP, zvichikonzera kukuvadzwa kweVJP uye terminal liquid midziyo.Chechipiri, kubvisa zvishoma nezvishoma mhepo mukati meVJP uye kudzivirira nhamba huru ye cryogenic liquid yakanangana nemhepo, zvichiita kuti kutonhora uye kuvhara mukati meVJP.
Isati yashandiswa zvakare yevacuum adiabatic pombi mushure mekutanga kushandiswa kana kumisa kugadzirwa, precooling ichaitwa kuitira kuti vacuum adiabatic pombi inogona kushanda zvakajairika chete mushure mekunge yasvika kune inoshanda.
3.ThePrecooling MethodzveVJP
Kutanga, tarisa kana vharafus, chiyero chepressuresuye vharafu yekuchengetedzas nezvimwewo.muVJP system vari mumamiriro akaenzana.Mushure mezviri pamusorocheckinopedzwa, zvishoma nezvishoma vhura iyoinlet valve yeVJP systemuye vaporize/gasifymvura yakaderera-inoyerera ichipinda mumhepo inotonhorera kumberi-cool theVJPnokutinezveMaminitsi makumi matatu.The pressure in theVJPkuchinja zvakanyanyapanguva ino.Apo kumanikidzwa muVJPinova yakagadzikana, iyo infusion vhoriyamu inogona kuwedzera zvishoma nezvishoma kusvika yasangana nezvinodiwa.(Cherechedza: panguva ye-pre-kutonhora maitiro, kana kumanikidzwa muVJPyakakwirira kudarika dhizaini inoenderana nedhizaini,zvinofanira kuva pakarepoakamirakupinza muVJP system.Mpanguva iyi,vhura zvachoseventvharafuspamutsetse wekusunungura pressure.)
4.Shut Down theVJP
Paunenge uchimisa kupinza, zvinorambidzwa zvachose kuvhara mavharuvhu emativi maviri eVJP system panguva imwe chete, kuitira kuti iite nzvimbo yakavharwa mukati.VJPsystem, zvichikonzera kuwandisa kwemvura yakasara muVJPnekuda kwegasification.
5. PeriodicDischarge ofCryogenicLzvidhori (LiquidOoxygen chete)
Nekuti ma hydrocarbons uye zvisaririra zviripo mukatiVJP yeiyo okisijeni yemvura, zvinhu izvi zvichaiswa mupombi yemukati kwenguva yakareba kana yatakurwa kuburikidza neVJP.Kana ma hydrocarbon aiswa muchubhu muhuwandu hwakawanda uye kwenguva yakareba, sezvo kunze kunopisa kanakugadzirwa kwemvura okisijeni ndiyo stopped, kuwanda kwemahydrocarbon muVJPinowedzera, uye kuita neokisijeni yasara kunogona kukonzeraanexplosion.
6.SafetyDevicezveVJP
Mune imwe neimwe yeVJPhurongwa hunofanira kugadzirirwa kuchengetedzwa kwekuchengetedzwa kwekuchengetedza (kusanganisira vheji yekudzivirira uye vent valve), Kana kudzvinyirirwa kweVJP kunosvika pakumanikidzwa kwekuvhura kwevhavha yekudzivirira iyo inozozarura nekusunungura kudzvinyirira munguva.Panguva imwecheteyo, theventmavharuvhu anogona zvakare kuvhurwa nemaoko kuti asunungure kudzvanywa kuti ave nechokwadi chekuchengetedzwa kweiyo VJP system yese.
Kusashanda zvakanaka uye Kurasa
| ZvinogonekaBreakdowns | Chikonzero | Kubata |
| Kuwedzera kwekumanikidza kunokonzerakuchengetekavharafu kuti itange kuenderera. | Mavharuvhu kumagumo maviri eVJPdzinovharwa panguva imwe chete, Ita kuti pressure isimuke. | Pakarepo vhura mavharuvhu kumativi maviri eVJPnokuda kwekudzvinyirira, uye vhura iyoventvharafuspanguva imwe. |
| Yakavharwa pipeline infusion. | Pane chiri kuvharisamuVJP. | KuvhuvhutaVJPine nitrogen gasi.(Ice kuvharira: Kuridza ne100oC nitrogen gasi) |
Nguva yekutumira: Zvita-02-2021