- Muaj feem xyuam ntawm ob lub foob flange vuam txuas
Cov txheej txheem kev sib txuas no feem ntau yog siv rau hauv kev sib txuas ntawm cov pa roj carbon steel nrog cov kab uas muaj qhov tsawg dua lossis sib npaug ntawm DN500 hauv kev tsim tshuaj lom neeg, roj av engineering, roj xa hluav taws xob engineering, thiab kev tsim vaj tsev hauv nroog.
- Lub hauv paus ntsiab lus ntawm ob chav sealing flange vuam kev twb kev txuas
Cov yeeb nkab ob chav sealing flange welding yog ib qho kev sib txuas ntawm ib qho kev sib txuas ntawm ob lub flange thiab cov yeeb nkab, thiab tom qab ntawd cov nplaim hluav taws kub hnyiab tau ntxiv ntawm ob lub flange sealing. Tom qab lub flange thiab flange sib dhos ua tiav, ob daim Qhov ob qhov flange sealing yog pob tw welded. Ob chav sealing flange yog ua los ntawm 20 # steel thiab muaj kev ua haujlwm zoo vuam.
Ob chav sealing flange yog welded los ntawm phau ntawv tungsten inert gas welding (GTAW) thiab phau ntawv arc vuam (SMAW). Los ntawm kev siv cov yam ntxwv ntawm ob lub flange sealing thiab tswj cov txheej txheem vuam ntawm ob lub flange sealing, muaj qhov sib nrug deb ntawm qhov vuam thiab sab hauv phab ntsa ntawm cov kav dej. Kev tswj xyuas kom zoo ntawm vuam cua sov thaum lub sij hawm vuam txheej txheem tuaj yeem tiv thaiv cov vuam kub kom tsis txhob ua rau cov txheej txheem tiv thaiv corrosion hauv cov kav dej. Nyob rau hauv lub ntsiab lus ntawm kev ua kom ntseeg tau qhov zoo thiab lub zog ntawm cov vuam, peb tuaj yeem tswj tau qhov kev puas tsuaj los ntawm cov cua sov uas tsim los ntawm kev vuam mus rau txheej los tiv thaiv corrosion hauv cov kav dej.
Ob chav sealing flange zawj yog ua tiav los ntawm kev siv tshuab. Txij li thaum lub vuam zawj ntawm lub sealing flange tau raug machined thiab tsim, tus neeg teb xov tooj yuav tsum ntxuav cov xim, xeb, nplai thiab lwm yam khib nyiab ntawm qhov zawj nto thiab qhov chaw ib puag ncig 10 hli weldment. , qhov zawj ntawm qhov vuam yog polished kom pom cov xim hlau.
- Kev tsim kho txheej txheem khiav ntawm ob chav sealing flange vuam kev twb kev txuas
Kev npaj kev tsim kho → Kev txais khoom → Bevel sib tsoo → Gasket installation → Sib tw ntawm ob lub foob flanges → Ob lub foob flange nruj → Base vuam → Muab ob npaug rau kev ntsuas ua ntej siab → Weld filling thiab npog → Weld tsos tshuaj ntsuam → Tsis muaj kev puas tsuaj ntawm welds → Ob npaug -Kev ntsuas hydraulic siab → Dej thiab ziab → Flange siab kuaj chaw nres nkoj sealing → Pipeline system hydraulic siab kuaj → Dej thiab ziab
- Cov ntsiab lus tseem ceeb ntawm kev tsim kho tshuab:
1. Ob chav kaw flange xauv thiab clamping.
Tom qab mating tiav, ob lub flanges sealing yuav tsum tau muab xauv ua ntej vuam. Thaum lub sij hawm xauv, hydraulic pliers, vise, jackscrews los yog tus kheej tsim khoom siv tau los xauv lawv raws li qhov chaw. Thaum xauv, raws li qhov sib txawv ntawm cov yeeb nkab diameters, 3 mus rau 5 txheej ntawm cov khoom siv xauv yog siv. Cov khoom siv ntsuas phoo tuaj yeem sib npaug sib npaug thiab muab xauv symmetrically. Tom qab kaw, qhov sib txawv ntawm ob qhov sib khi flanges yuav tsum tsis txhob ntau tshaj 1 hli.
2. Hydrostatictest
Tom qab ob-sealed flange hauv qab vuam tiav lawm, ua ntej ua ob-sealed dej siab ua ntej-test. Kev ntsuas siab yog lub raj xa dej tsim siab. Tom qab lub siab ruaj khov rau 30 vib nas this thiab dhau tus qauv, cov dej ntim tau ntws tawm, thiab cov vuam seam tau ntim thiab npog kom txog thaum lub vuam seam welding tiav. Tom qab ntawd, ua ob lub foob hydraulic siab ntsuas. Lub zog ntsuas qhov siab yog 1.5 npaug ntawm qhov ntsuas siab ntawm cov kav dej, thiab lub siab yog ruaj khov rau 30 vib nas this. Tom qab dhau qhov kev xeem, qhov ntsuas hydraulic nruj yog ua. Kev ntsuas siab yog lub siab tsim, thiab lub siab yog ruaj khov rau 60 vib nas this. Tom qab dhau qhov kev xeem, Ncua cov dej ntim rau hauv lub flange, thiab txuas thiab muab lub siab ntsuas qhov chaw nres nkoj los xyuas kom meej qhov zoo ntawm sealing.
