| Yog tias koj qhov mob yog ... | Xaiv | Vim li cas |
|---|---|---|
| Seawater velocity >3 m/s | C71500 | C70600 zaj duab xis tsis siab tshaj 3 m / s |
| Seawater ceev ceev<3 m/s | Los yog | Ob leeg ua haujlwm, xaiv los ntawm pob nyiaj siv |
| Xuab zeb los yog silt tam sim no | C71500 | Zoo dua erosion kuj |
| Temperature >80 degree | C71500 | C70600 txwv yog 80 degree |
| Kub<80°C | Los yog | Ob leeg ua haujlwm |
| High pressure (>300 psi) | C71500 | Siab zog tensile |
| Biofouling yog ib qho kev txhawj xeeb loj | C71500 | Ntau dua tooj liab ion tso tawm |
| Nyiaj txiag yog qhov txwv xwb | C70600 | 15-20% pheej yig dua |
| Xav tau 20+ xyoo lub neej nyob rau hauv dej txhoj puab heev | C71500 | Cov ntaub ntawv pov thawj ntev dua |
Flow Velocity cuam tshuam li cas rau kev xaiv ntawm C71500 thiab C70600?
Kev nrawm yog qhov tseem ceeb tshaj plaws. C71500 ua haujlwm nrawm dua li C70600.
| Kev nrawm nrawm | C71500 | C70600 | Kev pom zoo |
|---|---|---|---|
| 0 – 1.5 m/s | Txais tau | Txais tau (tab sis pheej hmoo sediment) | Ob leeg xav tau dej yaug |
| 1.5 – 3.0 m/s | Zoo heev | Zoo heev | C70600 zoo |
| 3.0 – 4.0 m/s | Zoo heev | Marginal- zaj duab xis yuav ua tsis tiav | Siv C71500 |
| 4.0 – 6.0 m/s | Zoo | Tsis pom zoo | C71500 xwb |
| >6.0 m/s | Ua tau nrog phab ntsa tuab | Tsis txhob siv | Rov tsim dua qhov system |
Vim li cas qhov nrawm nrawm: tooj liab nickel cia siab rau cov yeeb yaj kiab oxide tiv thaiv. Ntawm qhov nrawm nrawm, cov av qis qis thiab ua rau hauv qab - deposit corrosion. Thaum siab ceev, zaj duab xis erodes. C71500 muaj cov yeeb yaj kiab ntev dua li C70600.
Yuav Ua Li Cas Qhov Kub Tsav Tsheb Xaiv Ntawm C71500 thiab C70600?
Qhov ntsuas kub rau C70600 yog 80 degree. C71500 ua haujlwm txog 120 degree.
| Ua haujlwm kub | C71500 | C70600 | Kev pom zoo |
|---|---|---|---|
| <50°C | Zoo heev | Zoo heev | Los yog |
| 50-80 degree | Zoo heev | Txais tau | C70600 yog OK tab sis saib |
| 80-100 degree | Zoo | Tsis pom zoo | C71500 xwb |
| 100-120 degree | Txais tau (derate siab) | Tsis txhob siv | C71500 xwb |
| >120 degree | Siv lwm yam alloy | Tsis txhob siv | Titanium los yog super duplex |
Sand lossis Silt cuam tshuam li cas rau kev xaiv ntawm C71500 thiab C70600?
| Cov ntsiab lus xuab zeb | C71500 | C70600 | Kev pom zoo |
|---|---|---|---|
| Tsis muaj (ntshiab dej hiav txwv) | Zoo heev | Zoo heev | Los yog |
| Txoj kab (<0.1% by weight) | Zoo | Txais tau | C70600 ua |
| Nruab nrab (0.1-0.5%) | Ncaj - ntxiv phab ntsa thickness | pluag | Siv C71500 + phab ntsa tuab |
| High (>0.5%) | Tsis zoo - rov tsim kho kom tsawg | Tsis txhob siv | Nruab cov lim ua ntej |
Lub siab cuam tshuam li cas rau kev xaiv ntawm C71500 thiab C70600?
Siab siab nyiam C71500 vim muaj zog tensile ntau dua.
| Kev khiav hauj lwm siab | C71500 | C70600 | Kev pom zoo |
|---|---|---|---|
| <150 psi (10 bar) | Zoo heev | Zoo heev | Los yog |
| 150-300 psi (10-20 bar) | Zoo heev | Txais tau | C70600 nrog phab ntsa tuab |
| 300-600 psi (20-40 bar) | Zoo | Tsis pom zoo | C71500 xav tau |
| >600 psi (>40 bar) | Ua tau nrog SCH 80 | Tsis txhob siv | Tshawb xyuas cov kev txwv tsim |
Cov lej muaj zog:
C71500 tensile zog: 380 MPa (55 ksi)
C70600 tensile zog: 303 MPa (44 ksi)
C71500 tawm lub zog: 125 MPa (18 ksi)
C70600 tawm lub zog: 105 MPa (15 ksi)
Biofouling cuam tshuam li cas rau kev xaiv ntawm C71500 thiab C70600?
Ob leeg tiv thaiv biofouling. C71500 muaj txiaj ntsig zoo dua vim qhov tso tawm ntau dua tooj liab.
| Biofouling mob | C71500 | C70600 |
|---|---|---|
| Ntxuav dej hiav txwv, tsis tu ncua | Zoo heev | Zoo heev |
| Dej sov (25-35 degree) | Zoo | Zoo |
| Lub sij hawm nyob ruaj khov (lub lis piam) | Txais tau - qee qhov fouling | Txais tau - ntau fouling |
| Nruam sov stagnant | Ncaj ncees - tej zaum yuav xav tau kev ntxuav | Poor - tseem ceeb fouling |
Cov peev nyiaj cuam tshuam li cas rau kev xaiv ntawm C71500 thiab C70600?
C70600 yog pheej yig dua ua ntej. C71500 tej zaum yuav pheej yig dua lub sij hawm.
| Cov peev txheej | C71500 | C70600 |
|---|---|---|
| Cov khoom raug nqi ib ton | Lub hauv paus | 15-20% tsawg dua |
| Tib qhov system, C70600 txuag | - | 15-20% ntawm tus nqi yeeb nkab |
| Lub neej kev pab xav tau (zoo tej yam kev mob) | 25-40 xyoo | 15-25 xyoo |
| Lub neej kev pab xav tau (cov xwm txheej nyuaj) | 15-25 xyoo | 3-10 xyoo |
| Lifecycle tus nqi (20 xyoo, cov xwm txheej zoo) | qis | Siab dua yog hloov ib zaug |
| Tus nqi ntawm lub neej (20 xyoo, nyuaj) | qis dua | Ntau dua |
C71500 vs C70600
Kauj Ruam 1: Tshawb xyuas koj cov kua dej.
Tsis yog dej hiav txwv? C70600 tej zaum zoo.
Dej hiav txwv? Mus ntxiv.
Kauj Ruam 2: Tshawb xyuas koj qhov nrawm.
3 m/s → C71500.
Hauv qab 3 m / s → Txuas ntxiv.
Kauj Ruam 3: Tshawb xyuas koj qhov kub thiab txias.
Tshaj 80℃→ C71500.
Hauv qab 80℃→ Txuas ntxiv.
Kauj Ruam 4: Tshawb xyuas cov xuab zeb lossis cov khib nyiab.
Tam sim no → C71500.
Ntxuav → Txuas ntxiv.
Kauj Ruam 5: Tshawb xyuas lub zog thiab kev co.
Kev kub siab lossis kev co → C71500.
Tsis tshua muaj siab, ruaj khov → Txuas ntxiv.
Kauj Ruam 6: Tshawb xyuas koj lub qab ntug pob nyiaj siv.
Qhov project luv (<5 years) → C70600.
Long project (>10 xyoo) → C71500.
| Qhov xwm txheej | C71500 | C70600 |
|---|---|---|
| Ceev 1.5-3.0 m / s, huv si, txias | Xaiv tau | Tus nqi zoo tshaj |
| Ceev 3.0-6.0 m/s | Yuav tsum tau | Tsis txhob siv |
| Kub kub 80-120 degree | Yuav tsum tau | Tsis txhob siv |
| Sand >0.1% | Yuav tsum tau | Tsis txhob siv |
| Pressure >300 psi | Yuav tsum tau | Tsis txhob siv |
| Cov dej tropical, sib cuam tshuam | Nyiam | Txais tau |
| Cov phiaj xwm nyiaj txiag, lub neej luv luv | Tsis pom zoo | Nyiam |
| 20+ xyoo tsim lub neej | Nyiam | Tsis pom zoo |
FAQ
Q1: Dab tsi yog qhov tseem ceeb tshaj plaws hauv kev xaiv ntawm C71500 thiab C70600?
Flow ceev.Yog tias koj qhov nrawm tshaj 3 m / s tsis tu ncua, siv C71500. Tsis muaj dab tsi ntxiv. C70600 yuav ua tsis tau.
Q2: Kuv puas tuaj yeem siv C70600 hauv qhov system tsim rau C71500?
Yog, yog tias muaj cai tso cai.Tab sis xyuas qhov nrawm, qhov kub thiab txias, xuab zeb, thiab siab ua ntej. Yog tias lub kaw lus tau tsim los rau C71500, nws yuav muaj qhov nrawm dua lossis kub uas yuav ua rau C70600 puas.
Q3: Kuv puas tuaj yeem siv C71500 hauv qhov system tsim rau C70600?
Yog, ib txwm.C71500 muaj zog thiab ntau dua corrosion resistant. Nws yuav ua haujlwm zoo hauv C70600-tsim system. Qhov tsuas yog downside yog cov khoom siv ntau dua.
Q4: Qib twg koj puas pom zoo rau tsob ntoo desalination tshiab?
C71500 rau brine rhaub thiab siab - qhov kub thiab txias. C70600 rau qis-kub rov qab theem.Ntau cov nroj tsuag desalination siv ob qib, nrog C71500 hauv qhov kub tshaj plaws.
Q5: Qib twg zoo dua rau lub nkoj lub tshuab hluav taws xob?
C71500.Cov dej tua hluav taws muaj qhov sib cuam tshuam (lub sijhawm tsis tu ncua) thiab yuav tsum ua haujlwm raws li qhov xav tau. C71500 qhov ua tau zoo ntawm cov dej tsis zoo ua rau nws tus qauv.
Q6: Puas yog ASTM B111 C70600 tooj liab nickel yeeb nkab puas yog qhov kev xaiv tsis raug?
Yog, nyob rau hauv tsib qhov xwm txheej: velocity >3 m/s, temperature >80°C, sand present, pressure >300 psi, lossis 20+ xyoo tsim lub neej. Hauv cov xwm txheej no, C70600 yog qhov kev xaiv tsis raug.
Q7: Kuv puas tuaj yeem sib xyaw C71500 thiab C70600 hauv tib lub cev?
Yog, dimensionally lawv zoo tib yam.Siv RN-67 muab tub lim rau vuam ntawm qib. Tsis muaj teeb meem galvanic vim tias ob qho tib si yog tooj liab.
Q8: Kuv yuav ua li cas thiaj paub kuv qhov nrawm nrawm yog tias kuv tsis muaj cov ntsuas ntws?
xam nws.Velocity (m/s)=flow rate (m³/s) / cross-sectional area (m²). Yog tias koj tsis paub meej, tsim rau C71500. Tshaj - qhia tau yog pheej yig dua li qhov ua tsis tiav.
Q9: Puas yog C70600 muaj qhov zoo dua li tus nqi?
Tus nqi qis dua yog qhov zoo xwb.Qee cov fabricators hais tias C70600 yooj yim dua rau vuam, tab sis qhov sib txawv me me. Rau kev ua tau zoo, C71500 zoo dua hauv txhua pawg.
Q10: Koj qhov kev pom zoo yog dab tsi yog tias kuv tseem tsis paub meej?
Xaiv C71500.15-20% tus nqi siab dua ua ntej yuav koj qhov kev nyab xeeb ntawm kev tshaj tawm, kub, xuab zeb, thiab siab. Yog tias koj cov xwm txheej hloov pauv yav tom ntej, C71500 ua haujlwm rau lawv. C70600 tsis.
