## 1. Dab tsi yog qhov txawv ntawm ID thiab OD?
* ** ID (sab hauv lub taub) ** yog qhov ntsuas ntawm ntu hauv sab hauv ntawm cov yeeb nkab. Nws txiav txim siab qhov muaj peev xwm ntws ntws ntawm cov yeeb nkab, raws li nws yog qhov chaw uas cov kua taug kev.
* ** OD (sab nraud ntawm txoj kab ntawm lub taub) ** yog qhov ntsuas ntawm txoj hlab ntsha sab nraud ntawm cov yeeb nkab. Nws yog tus nqi ruaj ruaj rau muab cov yeeb nkab muab rau cov khoom loj thiab yog qhov ua tiav kev ua haujlwm xws li kev sib xyaw ua ke, thiab txiav txim siab qhov chaw xav tau rau kev teeb tsa.
Lub ntsiab lus tseem ceeb yog tias lub phab ntsa tuab ntawm cov yeeb nkab cais tus id los ntawm OD. Rau ib tug muab nominal cov yeeb nkab loj (nps), od yog tsau, tab sis tus lej yuav hloov pauv nyob ntawm cov yeeb nkab lub sijhawm (phab ntsa tuab).
### 2. Yuav ua li cas nyeem cov piping specification?
Kev xa cov khoom xa khoom tshwj xeeb (feem ntau hu ua * cov yeeb nkab *) yog cov ntaub ntawv uas txhais cov cai rau txhua qhov kev xav tau rau txhua qhov system. Txhawm rau nyeem ib qho, koj ib txwm saib rau:
* ** LINE DECTRATIONATION: ** Ib txoj cai ntawm cov piping thiab ntsuas daim duab (p & id) uas qhia koj tias qhov kev pab cuam tshwj xeeb li cas (piv txwv li 3-nti, hom kev ua kua, spit 101A).
* ** Khoom siv: ** Cov khoom siv tshwj xeeb ntawm cov yeeb nkab, cov fittings, thiab li qub (piv txwv li cov hlau, stainless hlau 316).
* ** Kev ntsuas siab siab: ** Lub siab - sov chav rau flanges, li qub, thiab fauv, ASME 150 #).
* ** Hom sib txuas: ** Qhov txuas tau kawg rau cov yeeb nkab (piv txwv li welded, flanged, threaded).
* ** Cov npe ntawm cov qauv kev pom zoo thiab hom kev pom zoo rau txhua cov khoom xws li qub, gaskets, bolts, thiab fittings.
* ** Rwb thaiv tsev & Painting: ** Xav kom muaj kev tiv thaiv xeb thiab cov rwb thaiv tsev thermal.
### 3. Dab tsi yog cov yeeb nkab faib?
Kev faib tawm yeeb nkab yog cov txheej txheem ntawm cov xais raws li cov kua dej raws li lawv muaj kev phom sij lawv muaj kev phom sij. Qhov kev faib tawm no txiav txim siab cov qauv tsim nyog, cov khoom siv, tshuaj xyuas, thiab kuaj cov qauv. Cov chav kawm tseem ceeb yog:
* ** COV KEV PAB CUAM TSHWJ XEEB: ** Rau cov tsis tau - Cov kua dej zoo li cov dej txias, cua, lossis cov roj av. Lawv muaj qhov yuav tsum tau nruj me ntsis.
* ** Kev pabcuam cov txheej txheem: ** Rau cov kua uas yog ib feem ntawm cov txheej txheem kev lag luam tseem ceeb. Cov cai muaj ntau nruj dua li cov nqi hluav taws xob.
* ** KEV PAB CUAM loj loj: ** Rau cov kab kev kawm kom sov lossis hloov siab hloov uas ua rau qaug zog.
* ** Cov kev pabcuam m ntawm m
* ** High {- qhov siab / siab -}} kub kev pab cuam, uas yuav tsum muaj cov ntaub ntawv tshwj xeeb thiab tsim.
### 4. Tus qauv ASME rau cov piping?
Thawj cov qauv ua ntej rau cov tsiaj tsim qauv, cov ntaub ntawv, cov ntaub ntawv, tshuaj xyuas, thiab kuaj yog EMME B31 code rau siab Piping **. Nws tsis yog ib qho txheej txheem tab sis cov lej ntawm cov lej, txhua rau kev siv daim ntawv thov sib txawv. Cov feem ntau muaj yog:
* ** ASME B 31.1 - piping fais fab: ** Rau cov piping hauv hluav taws xob hluav taws xob nroj tsuag thiab kev siv hluav taws xob.
* ** ASME B 31.3 - Cov txheej txheem siv rau cov roj av ntxiv rau cov roj av, tshuaj, thiab lwm yam khoom siv.
* ** ASME B 31.4 - Kev thauj khoom mus thauj khoom mus txog rau cov kua thiab slurries: ** Rau ntev- deb li nram qab.
* ** ASME B 31.8 - o;} roj kev kis thiab faib cov khoom xa khoom: ** Rau ntuj roj pipelines.
* ** ASME B 31.12 - hydrogen piping thiab pipelines: ** Rau cov ntawv luam cov tshuab thauj hydrogen.
### 5. Yuav ua li cas nyeem piping layout?
Nyeem cov piping layout (isometric, ortographic, lossis phiaj xwm kev kos duab) suav nrog kev nkag siab cov cim thiab cov rooj sib txoos:
1. ** Nkag mus rau hom kev kos duab: ** ** Npaj los ntawm saud), ** Saib ntawm sab saud), thiab **
2. ** Txheeb xyuas cov pas dej piping: ** Kawm cov cim qauv rau cov kav dej, flanges, tev, tees, reducers, thiab seev.
3. ** Piping isometrics Siv ib qho kev sib koom ua ke (sab qaum teb / sab qab teb, nce qib) kom pom tau txhua qhov ntawm cov yeeb nkab khiav.
4. ** Ua raws li cov kev taw qhia ntws: ** Sub ntawm daim duab ib txwm qhia cov kev taw qhia ntawm kev ntws.
5. ** Rov xyuas cov ntaub ntawv ntawm cov ntaub ntawv (BOM): ** Ib lub rooj ntawm daim duab teev npe tag nrho cov khoom siv nrog lawv qhov ntau thiab tsawg, thiab ntau yam ntau.
6. ** Cov ntawv xov xwm tseem ceeb: ** Cov ntaub ntawv tseem ceeb ntawm kev siv cov vuam vuam, txoj kab nqes, rwb thaiv tsev, ntsuas, thiab sib txuas rau cov khoom siv.
