ASTM A335 Standard Specification rau Seamless Ferritic Alloy-Steel Pipe rau Kev Pabcuam Kub Kub
Rau kev ua tau zoo tshaj plaws thiab kev tsim khoom hauv ntau hom kev lag luam, kev hloov pauv hluav taws xob zoo yog qhov tseem ceeb. Los ntawm kev ua kom muaj kev hloov pauv ntawm lub zog thermal ntawm ob lossis ntau dua cov kua dej, cov khoom siv hluav taws xob hloov pauv tau ua rau muaj txiaj ntsig zoo rau txoj haujlwm no. Finned tubes tau dhau los ua ib qho kev xaiv rau cov tshuab zoo li no los ua kom lawv cov cua sov hloov pauv tau zoo. CovASTM A335 P11 kauv-welded khoom finned rajyog ib qho kev cia siab thiab siv tau zoo ntawm ob peb finned tube ntau yam uas tau muab. TS tuaj yeem muab koj cov finned tubes uas yog ASTM A335 / ASME SA335 P11 helical welded nyob rau hauv ntau yam ntev, cov ntaub ntawv, txheej diameters, phab ntsa thicknesses, thiab lwm yam tsis.
Tsawg-alloy steel ASTM A335 P11 nquag siv hauv cov ntawv thov kub. Nws muaj cov weldability zoo, siab corrosion kuj, thiab zoo heev mechanical zoo. Cov chromium thiab molybdenum Cheebtsam ntawm P11 alloy ua rau nws zoo kawg nkaus kub-kub lub zog thiab oxidation kuj. Cov yam ntxwv no ua rau nws zoo meej rau kev tsim cov raj finned thiab lwm yam khoom siv hluav taws xob. Lub hauv paus raj yog qhwv nyob rau hauv nruam helical fins nyob rau hauv lub ASTM A335 P11 kauv-welded solid-finned raj. Cov txheej txheem vuam tsis siv neeg yog siv los ua kom ruaj ntseg fuse cov fins mus rau cov hlab, uas ua rau muaj qhov adhesion zoo thiab thermal conductivity. Txhawm rau ua tau raws li qee qhov kev xav tau ntawm cov cua sov hloov pauv, fin geometry tuaj yeem hloov kho, suav nrog qhov siab, tuab, thiab qhov sib nrug. Cov kws tsim qauv tuaj yeem hloov kho finned tube tsim los ua kom muaj txiaj ntsig zoo tshaj plaws los ntawm kev hloov pauv cua sov ua tsaug rau qhov kev hloov pauv no.
Specification ntawm ASTM A335 P11 Welded Helical Khoom Finned Tube
| Specifications | ASTM A335 / ASME SA335 Cov Lus Qhia |
| Qib | P11 |
| Hom | Seamless |
| Khoom siv | Hlau alloy |
| Sab nraud txoj kab uas hla | 48.3mm ib |
| Phab ntsa Thickness | 3.68mm ib |
| Ntev | 4300 hli |
| Khoom siv Fin | Carbon Steel |
| Fin Hom | Helical Welded Khoom |
| Fin Qhov siab | 19.05mm ib |
| Fin Thickness | 1.25 hli |
| Fin Pitch | 236 FPM |
| Bare Ends | 50mm thiab 50mm |
| Cov nqe lus them nqi | T/T, L/C |
| Lub sij hawm xa tuaj | Raws li qhov yuav tsum tau muaj |
ASTM A335 P11 Welded Helical Khoom Finned Tube
Chemical Composition (%) ntawm ASTM A335 P11 Welded Helical Solid Finned Tube
| CHEMICAL COMPOSITION (%) | |||||||
| Txuj | C | Mn | P, max | S, max | Si | Cr | Mo |
| ASTM A335 P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
Lub zog txhua yam ntawm ASTM A335 P11 kauv-welded khoom-finned leeg yog ib qho ntawm lawv cov txiaj ntsig tseem ceeb. Thaum piv rau lwm cov qauv tsim ntawm finned tubes, cov khoom siv fin tsim muaj cov qauv kev ntseeg siab dua. Vim yog lub zog no, txawm tias thaum raug cov kua dej siab, qhov sib txawv ntawm qhov sib txawv, thiab kev ntxhov siab, cov fins tau khaws cia kom zoo. Cov hlab no zoo heev rau kev thov cov ntawv thov uas muaj kev cia siab thiab kev ua neej ntev yog qhov tseem ceeb, ua tsaug rau lawv cov qauv ruaj khov. Kev tiv thaiv rau fouling ntawm kauv-welded, khoom-finned hlab yog lwm qhov zoo dua. Raws li qhov tshwm sim ntawm helical fin tsim qhov kev txhawb nqa ntawm cov dej turbulence, deposits tsis tshua muaj peev xwm tsim nyob rau ntawm qhov chaw fin. Ntxiv nrog rau kev lees paub kev hloov pauv mus tas li thiab tswj kev ua haujlwm ntawm lub sijhawm, qhov no txo qhov ua rau fouling.
American Society for Testing and Materials (ASTM) tau tsim cov qauv siv tau, thiab ASTM A335 P11 Spiral Welded Solid Finned Tube ua raws li lawv. Raws li qhov tshwm sim ntawm cov qauv no, cov raj tau lees paub kom ua tau raws li cov qauv siab rau cov khoom muaj pes tsawg leeg, cov yam ntxwv ntawm kev siv tshuab, thiab cov txheej txheem tsim khoom. Txhua theem ntawm cov txheej txheem tsim khoom yog ua raws li kev tswj hwm nruj. Cov qauv zoo tshaj plaws tau ua tiav los ntawm kev ua cov kev ntsuam xyuas kev ncaj ncees, kev kuaj xyuas qhov ntev, thiab kev tshuaj xyuas cov khoom ntawm cov khoom tiav.
Cov yam ntxwv ntawm ASTM A335 P11 Welded Helical Khoom Finned Tube
- Kev ua haujlwm kub hloov tau zoo dua
- Zoo heev mechanical zog
- Zoo av tsis kam
- Zoo heev corrosion kuj
Kev tiv thaiv rau fouling ntawm kauv-welded, khoom-finned hlab yog lwm qhov zoo dua. Raws li qhov tshwm sim ntawm helical fin tsim qhov kev txhawb nqa ntawm cov dej turbulence, deposits tsis tshua muaj peev xwm tsim nyob rau ntawm qhov chaw fin. Ntxiv nrog rau kev lees paub kev hloov pauv mus tas li thiab tswj kev ua haujlwm ntawm lub sijhawm, qhov no txo qhov ua rau fouling.
