1. Cov qauv tsim qauv yuav tsum muaj
Rooj vag Valve Qauv
Cov paib khawm tsis zoo. Daim hlau nruj rau DN100 thiab hauv qab no; elastic daim hlau rau DN150 thiab siab dua.
Valve pheej hmoo thiab disc txuas yuav tsum tau ua kom du qhib nyob rau hauv tag nrho siab plawg.
Ntiaj Teb Valve Qauv
Linear ntws khiav txoj kev tsim qauv.
Kos Valve Qauv
Cov qauv tsim qauv dawb. Rau cov nplaim taws, dual-phaj kuaj xyuas yuav tsum tau txais "tsis-tsau ntsia liaj qhov rooj" Tsim lossis xov xwm ceev vuam nrog foob vuam vuam.
2. STEM thiab Bonnet Tsim
Qia Tsim
OS & Y (sab nraum ntsia hlau & joke) qauv yuav tsum rau rooj vag thiab lub ntiaj teb qub. Cov khoom siv ris tau yuav tsum tau phim lub cev valve.
Kev ncua cov qia yuav tsum suav nrog Live-loaded compression (caij nplooj ntoos hlav quab yuam) kom tiv thaiv tus neeg ua yeeb yam thauj, nrog kev tsim qauv hluav taws xob.
Bonnet Tsim
Bolted, welded, lossis tseem ceeb pob zeb (rau DN50 thiab hauv qab). Forged valve bolts yuav tsum ua raws li ASME 18.2.1.
Txuas ntxiv Bonnet Neck yuav tsum ua kom tau raws li qhov chaw vaporization.
Cryogenic Rooj vag / globe cov li qub tau txais cov ntsaws ruaj ruaj ze ntim, nrog cov chaw sib khi welded nrog anustenitic steel lossis nyuaj alloys.
3. Lub rooj thiab cov khoom yuav tsum tau ua
Lub Rooj Tsim
Elastic zaum yuav tsum tau txais kev zam tawm ceev ceev. Sealing chaw ntawm kaw cov khoom siv thiab cov rooj zaum yuav tsum muaj nyuaj alloy overlay (ntau dua lossis sib npaug ntawm 1.6mm tuab). Kev kho siab tob cantogenic yuav tsum tau ua rau kub kub hauv qab -100 degree.
Cov khoom siv xaiv
Hlau lub rooj Hardness: Cov khoom ua disc cov nplaim hluavtaws yuav tsum softer dua lub rooj.
Stainless hlau cov ntsiab lus tsawg dua lossis sib npaug rau 0. 23%; 23%; tooj liab alloys txwv.
Anustenitic Stainless hlau yuav tsum tau muab rau hauv kev daws teeb meem.
Bolts / txiv ntoo rau cov txhab hluav taws xob yuav tsum sib phim lub cev lub cev chemistry.
Graphite Ntim: corrosion-resistant ntshiab graphite (ntau dua los yog sib npaug rau 99.8% purity).
ASTM A320 B8M "chav kawm 2" Bolts yuav tsum tau ua. PMI cov ntaub ntawv yuav tsum tau ua rau alloy li qub.
Austenitic cam khwb cia li qub rau ultra-tsis muaj kub yuav tsum muaj kev cuam tshuam kev cuam tshuam.
4. Kev tiv thaiv zoo li qub thiab hluav taws-nyab xeeb
Anti-zoo li qub
Elastic-zaum-zaum yuav tsum muaj kev ua haujlwm (valve lub cev, disc, qia) nrog tsis kam<10Ω.
Hluav Taws Kub Zoo Tsim
API 607 Kev Ua Raws Cai Ua Raws Cai, tshwj tsis yog rau cov roj hmab-lined lined.
5. Kev khiav hauj lwm torque thiab txhav tas
Qhib Torque
Handwheel / Qib Zog Yuam Sij Ntau dua lossis sib npaug ntawm 350n ntawm ib nrab-qhib txoj haujlwm; Tsawg dua los yog sib npaug rau 360n nyob rau hauv qab cryogenic tej yam kev mob.
VALVE DOCKING
Xauv cov khoom siv yuav tsum tau qhib / kaw txoj haujlwm.
6. Kev ua tau zoo
Daim Ntawv Pov Thawj Ntsuas
Yuav tsum tau rau cov li qub ntawm hom qauv, qauv, thiab qhov loj me.
Kev cia siab ua hauj lwm
Kev noj khoom haus du rau txhua txoj haujlwm rau ntau dua lossis sib npaug rau 5 xyoos.
7. Vuam thiab NDT yuav tsum tau
Casting li qub
Chav kawm 900+} stainless hlau: 100% RT.
Chav kawm 600+} stainless hlau: 100% MT / PT.
Forged Li Qub
Chav kawm 600+} stainless hlau: 100% MT / PT.
Kev Kuaj Hlua
10% ib batch (tsawg kawg 1 und) rau lwm tus.
Welded xaus
100% x-tshav + kua ntsuas ua kua.
Kev kuaj xyuas tom qab Weld
100% PT rau rooj tog (piv txwv li, 13% CR / nyuaj alloy overlays).
8. Siab Thiab Leakage Testing
Muaj kab muaj kev
Tom qab kev kho cua sov-weld → → valve cycling → kev ntsuas siab siab (suav nrog lub cev muaj zog).
Kev ntsuam xyuas to
Kev siab siab (1.1 × pn), qis-siab (0. 2mpa), thiab cov ntawv xeem qia.
Sab Nrauv Kaw Li Qub
Kev kuaj lub rooj zaum siab (1.1 × siab siab).
Kuaj Kev Taw Qhia
10% ntawm li qub (tsis suav nrog cov li qub) yauv mus rau 1.1 × cua siab ntsuas. Kev txwv tsis pub siv ib qho ISO 5208 / ISO 15848-1.
9. Cryogenic Testing
Kev kuaj tom qab kev kuaj mob tom qab, ua:
Ultra-tsis muaj kub (-196 degree) section) sealing / to kev ntsuam xyuas.
Ua haujlwm ntsuas (ua haujlwm ntawm kev ua haujlwm ua haujlwm).
Cryogenic sealing (ntim, flange gaskets, rooj zaum) nyob rau hauv siab tshaj plaws ua haujlwm siab ({} {1}} degree).
Cryogenic voj voog kev xeem lub neej.