Microchannel coils tau siv sijhawm ntev hauv kev lag luam tsheb ua ntej lawv tshwm sim hauv HVAC cov cuab yeej hauv nruab nrab xyoo 2000s.Txij thaum ntawd los, lawv tau dhau los ua neeg nyiam, tshwj xeeb tshaj yog nyob rau hauv cov cua txias hauv tsev, vim tias lawv yog qhov sib sib zog nqus, muab cov cua sov zoo dua, thiab siv cov tub yees tsawg dua li cov khoom siv hluav taws xob finned tube.
Txawm li cas los xij, siv cov tub yees tsawg dua kuj txhais tau hais tias yuav tsum tau saib xyuas ntau dua thaum them lub kaw lus nrog microchannel coils.Qhov no yog vim hais tias txawm tias ob peb ooj tuaj yeem txo qhov kev ua tau zoo, kev ua haujlwm, thiab kev ntseeg siab ntawm lub tshuab ua kom txias.
304 thiab 316 SS capillary Coil Tubes tsum nyob rau hauv Suav teb
Muaj cov khoom sib txawv uas siv rau cov coiled tubing rau cov khoom siv hluav taws xob sib txawv, boilers, super heaters thiab lwm yam kev siv kub kub uas muaj cua sov lossis cua txias.Qhov sib txawv muaj xws li 3/8 coiled stainless hlau tubing thiab.Nyob ntawm qhov xwm txheej ntawm daim ntawv thov, qhov xwm txheej ntawm cov kua dej uas kis tau los ntawm cov raj thiab cov khoom siv qib, cov hom raj no txawv.Muaj ob qhov sib txawv ntawm qhov sib txawv rau cov raj coiled raws li txoj kab uas hla ntawm lub raj thiab txoj kab uas hla ntawm lub kauj, qhov ntev, phab ntsa thickness thiab cov sij hawm.SS Coil Tubes yog siv nyob rau hauv ntau qhov sib txawv thiab qib nyob ntawm daim ntawv thov.Muaj cov ntaub ntawv alloy siab thiab lwm cov ntaub ntawv carbon steel uas muaj rau cov coil tubing thiab.
Tshuaj Compatibility ntawm Stainless Hlau Chev Tube
Qib | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti | Fe | |
304 | min. | 18.0 Nws | 8.0 ib | |||||||||
max. | 0.08 ib | 2.0 | 0.75 ib | 0.045 ib | 0.030 Nws | 20.0 Nws | 10.5 | 0.10 | ||||
304l ua | min. | 18.0 Nws | 8.0 ib | |||||||||
max. | 0.030 Nws | 2.0 | 0.75 ib | 0.045 ib | 0.030 Nws | 20.0 Nws | 12.0 Nws | 0.10 | ||||
3 04 h | min. | 0.04 ib | 18.0 Nws | 8.0 ib | ||||||||
max. | 0.010 ib | 2.0 | 0.75 ib | 0.045 ib | 0.030 Nws | 20.0 Nws | 10.5 | |||||
SIB 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 26.00 Nws | 0.10 max | 19.00 21.00 Nws | 5 4,7mn | |||
SIB 310S | 0.08 max | 2 max | max 1.00 Nws | 0.045 max | 0.030 max | 24.00 26.00 Nws | 0.75 max | 19.00 21.00 Nws | 5 3,095m | |||
SWB 310H | 0.04 0.10 Nws | 2 max | max 1.00 Nws | 0.045 max | 0.030 max | 24.00 26.00 Nws | 19.00 21.00 Nws | 5 3,885m | ||||
316 | min. | 16.0 Nws | 2.03.0 Nws | 10.0 | ||||||||
max. | 0.035 ib | 2.0 | 0.75 ib | 0.045 ib | 0.030 Nws | 18.0 Nws | 14.0 Nws | |||||
316l ua | min. | 16.0 Nws | 2.03.0 Nws | 10.0 | ||||||||
max. | 0.035 ib | 2.0 | 0.75 ib | 0.045 ib | 0.030 Nws | 18.0 Nws | 14.0 Nws | |||||
316 TSI | 0.08 max | 10.00 14.00 Nws | 2.0 max | 0.045 max | 0.030 max | 16.00 18.00 Nws | 0.75 max | 2.00 3.00 Nws | ||||
317 | 0.08 max | 2 max | 1 max | 0.045 max | 0.030 max | 18.00 20.00 Nws | 3.00 4.00 Nws | 5 7,845m | ||||
SWB 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 20.00 Nws | 3.00 4.00 Nws | 11.00 15.00 Nws | 5 7,89m | |||
SIB 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 Nws | 9.00 12.00 Nws | 0.10 max | 5 (C + N) 0.70 max | |||
SIB 321H | 0.04 0.10 Nws | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 Nws | 9.00 12.00 Nws | 0.10 max | 4 (C + N) 0.70 max | |||
347/347 ib | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 20.00 Nws | 9.0013.00 Nws | |||||
410 | min. | 11.5 | ||||||||||
max. | 0.15 | 1.0 | 1.00 Nws | 0.040 ib | 0.030 Nws | 13.5 Nws | 0.75 ib | |||||
446 ib | min. | 23.0 Nws | 0.10 | |||||||||
max. | 0.2 | 1.5 | 0.75 ib | 0.040 ib | 0.030 Nws | 30.0 Nws | 0.50 ib | 0.25 | ||||
904l ua | min. | 19.0 Nws | 4.00 Nws | 23.00 Nws | 0.10 | |||||||
max. | 0.20 ib | 2.00 Nws | 1.00 Nws | 0.045 ib | 0.035 ib | 23.0 Nws | 5.00 Nws | 28.00 Nws | 0.25 |
Mechanical Properties Chart of Stainless Hlau Tubing Chev
Qib | Qhov ntom | Melting Point | Tensile zog | Yield zog (0.2% Offset) | Elongation |
304/304 L | 8.0 g / cm3 | 1400 ° C (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
3 04 h | 8.0 g / cm3 | 1400 ° C (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 40% |
310/310S/310H | 7,9g 3 | 1402 ° C (2555 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 40% |
306/316 H | 8.0 g / cm3 | 1400 ° C (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
316l ua | 8.0 g / cm3 | 1399 ° C (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
317 | 7,9g 3 | 1400 ° C (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
321 | 8.0 g / cm3 | 1457 ° C (2650 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
347 ib | 8.0 g / cm3 | 1454 ° C (2650 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
904l ua | 7,95g 3 | 1350 ° C (2460 ° F) | Psi 71000, MPa 490 | Psi 32000, MPa 220 | 35% |
SS Heat Exchanger Coiled Tubes sib npaug qib
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SIB 304 | 1.4301 ib | S30400 | TIAB SA 304 | 30 4s31 | 08J18J 10 | Z7CN18-09 | X5CrNi18-10 |
SWB 304L | 1.4306/1.4307 | S30403 | SUS 304 L | 3 304s11 | 03j18j 11 | Z3CN18-10 | X2CrNi18-9 / X2CrNi19-11 |
SIB 304H | 1.4301 ib | S30409 | - | - | - | - | - |
SIB 310 | 1.4841 ib | S31000 | SIB 310 | 310 S24 | 20Ch25N20S2 | - | X15CrNi25-20 |
SIB 310S | 1.4845 ib | S31008 | SUS 310 S | 310 S16 | 20 Nc23N18 | - | X8CrNi25-21 |
SWB 310H | - | S31009 | - | - | - | - | - |
SIB 316 | 1.4401 / 1.4436 | S31600 Nws | TIAB SA 316 | 316S31/316S33 | - | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SWB 316L | 1.4404/1.4435 | S31603 | SUS 316L | 316S11/316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
SIB 316H | 1.4401 Nws | S31609 | - | - | - | - | - |
SS 316 TSI | 1.4571 ib | S31635 | SUS 316 Ti | 320s31 ib | 08Ch17N13M2T | Z6CNDT17-123 | X6CrNiMoTi17-12-2 |
SIB 317 | 1.4449 ib | S31700 Nws | TIAB SA 317 | - | - | - | - |
SWB 317L | 1.4438 ib | S31703 | SUS 317L | - | - | - | X2CrNiMo18-15-4 |
SIB 321 | 1.4541 ib | S32100 | TIAB SA 321 | - | - | - | X6CrNiTi18-10 |
SIB 321H | 1.4878 ib | S32109 | SUS 321 H | - | - | - | X12CrNiTi18-9 |
SIB 347 | 1.4550 Nws | S34700 Nws | TIAB SA 347 | - | 08Ch18N12B | - | X6CrNiNb18-10 |
SIB 347H | 1.4961 ib | wb 34709 | SUS 347 H | - | - | - | X6CrNiNb18-12 |
wb 904l | 1.4539 ib | n08904 ua | SWB 904L | 9 04s13 | TIAB SA 317J5L | Z2 NCUA 25-20 | X1NiCrMoCu25-20-5 |
Cov tsoos finned tube coil tsim tau tus qauv siv hauv kev lag luam HVAC tau ntau xyoo.Cov coils Ameslikas siv cov raj tooj liab nrog txhuas fins, tab sis cov raj tooj liab ua rau electrolytic thiab anthill corrosion, uas ua rau cov coil xau ntau ntxiv, hais tias Mark Lampe, tus thawj tswj khoom rau cov khoom siv hluav taws xob coils ntawm Carrier HVAC.Yuav kom daws tau qhov teeb meem no, kev lag luam tau tig mus rau puag ncig aluminium raj nrog aluminium fins los txhim kho kev ua haujlwm thiab txo qis corrosion.Tam sim no muaj cov tshuab microchannel uas tuaj yeem siv rau hauv ob qho tib si evaporators thiab condensers.
"Lub microchannel thev naus laus zis, hu ua VERTEX thev naus laus zis ntawm Carrier, yog qhov sib txawv hauv cov raj txhuas puag ncig tau hloov nrog cov raj sib luag tiaj tiaj tiaj rau cov fins, "Lampe hais."Qhov no faib cov tub yees kom sib npaug ntawm thaj chaw dav dua, txhim kho cov cua sov kom cov kauj tuaj yeem ua haujlwm tau zoo dua.Thaum lub tshuab microchannel tau siv nyob rau hauv thaj chaw sab nraum zoov condensers, VERTEX thev naus laus zis tam sim no tsuas yog siv hauv cov coils hauv tsev. "
Raws li Jeff Preston, tus thawj coj ntawm kev pabcuam kev pabcuam ntawm Johnson Controls, tus tsim microchannel tsim ib qho yooj yim-channel "hauv thiab tawm" cov tub yees txias uas muaj lub raj superheated nyob rau sab saum toj thiab ib lub raj subcooled hauv qab.Nyob rau hauv sib piv, cov tub yees nyob rau hauv ib tug pa finned tube coil ntws los ntawm ntau txoj kev los ntawm sab saum toj mus rau hauv qab nyob rau hauv ib tug serpentine qauv, yuav tsum tau ntau deg cheeb tsam.
Preston hais tias "Qhov tshwj xeeb microchannel coil tsim muab cov coefficient hloov pauv tau zoo heev, uas ua rau kom muaj txiaj ntsig thiab txo cov tub yees yuav tsum tau ua," Preston hais."Yog li ntawd, cov cuab yeej tsim los nrog microchannel coils feem ntau me dua li cov khoom siv ua haujlwm siab nrog cov qauv tsim finned tube.Qhov no yog qhov zoo tagnrho rau qhov chaw txwv tsis pub siv xws li tsev nrog xoom kab. "
Qhov tseeb, ua tsaug rau kev qhia txog kev siv tshuab microchannel, hais tias Lampe, Carrier tau tuaj yeem khaws cov khoom siv hluav taws xob sab hauv tsev feem ntau thiab cov cua txias sab nraum zoov condensers zoo tib yam los ntawm kev ua hauj lwm nrog ib puag ncig fin thiab raj tsim.
"Yog tias peb tsis tau siv cov thev naus laus zis no, peb yuav tsum tau nce qhov loj ntawm lub tshuab hluav taws xob sab hauv mus rau 11 ntiv tes siab thiab yuav tsum tau siv lub chassis loj dua rau sab nraud condenser," nws hais.
Thaum lub tshuab microchannel coil feem ntau yog siv hauv cov tub yees hauv tsev, lub tswv yim tau pib nkag mus rau hauv kev lag luam kev teeb tsa raws li qhov xav tau sib dua, cov khoom siv sib txuas txuas ntxiv mus ntxiv, Preston tau hais.
Vim hais tias microchannel coils muaj cov tub yees me me, txawm tias ob peb ooj ntawm kev hloov pauv tuaj yeem cuam tshuam rau lub neej, kev ua haujlwm thiab kev siv hluav taws xob, Preston hais.Qhov no yog vim li cas cov neeg cog lus yuav tsum nco ntsoov xyuas nrog cov chaw tsim khoom txog cov txheej txheem them nyiaj, tab sis feem ntau nws suav nrog cov kauj ruam hauv qab no:
Raws li Lampe, Carrier VERTEX thev naus laus zis txhawb nqa tib lub teeb tsa, them nqi thiab kev pib ua haujlwm raws li lub tshuab raj puag ncig thiab tsis tas yuav muaj cov kauj ruam ntxiv los yog txawv ntawm cov txheej txheem txias-them tam sim no.
"Txog 80 mus rau 85 feem pua ntawm cov nqi yog nyob rau hauv cov kua hauv lub xeev, yog li nyob rau hauv lub txias txias uas ntim yog nyob rau hauv lub sab nraum zoov condenser coil thiab kab pob," Lampe hais."Thaum tsiv mus rau microchannel coils nrog txo qhov ntim sab hauv (piv rau cov qauv puag ncig tubular fin), qhov sib txawv ntawm tus nqi cuam tshuam tsuas yog 15-20% ntawm tag nrho cov nqi, uas txhais tau tias me me, nyuaj-rau- ntsuas qhov sib txawv.Tias yog vim li cas txoj kev pom zoo kom them lub kaw lus yog los ntawm subcooling, nthuav dav hauv peb cov lus qhia kev teeb tsa. "
Txawm li cas los xij, qhov me me ntawm cov tub yees hauv microchannel coils tuaj yeem ua teeb meem thaum lub tshuab cua sov sab nraum zoov hloov mus rau hom cua sov, Lampe tau hais.Hauv hom no, lub kaw lus coil hloov pauv thiab lub capacitor uas khaws cia feem ntau ntawm cov kua them tam sim no yog cov kauj hauv sab hauv.
Lampe hais tias "Thaum lub ntim sab hauv ntawm lub hauv tsev kauj yog tsawg dua li ntawm cov kauj sab nraum zoov, qhov kev tsis sib haum xeeb tuaj yeem tshwm sim hauv qhov system," Lampe hais."Yuav daws tau qee qhov teeb meem no, Carrier siv lub roj teeb built-in nyob rau hauv chav tsev sab nraum zoov kom ntws tawm thiab khaws cov nqi ntau dhau hauv cov cua sov.Qhov no tso cai rau lub kaw lus tswj kom zoo thiab tiv thaiv lub compressor los ntawm dej nyab, uas tuaj yeem ua rau kev ua haujlwm tsis zoo vim tias cov roj tuaj yeem tsim nyob rau hauv cov coil sab hauv. "
Thaum them lub kaw lus nrog microchannel coils tuaj yeem xav tau kev saib xyuas tshwj xeeb rau kev nthuav dav, kev them nyiaj HVAC yuav tsum tau siv cov tub yees kom raug, Lampe hais.
"Yog hais tias lub kaw lus yog overloaded, nws tuaj yeem ua rau muaj kev siv hluav taws xob ntau, kev ua kom txias tsis zoo, cov dej xau thiab cov compressor tsis ua hauj lwm ntxov," nws hais."Ib yam li ntawd, yog tias lub kaw lus tsis muaj zog, coil freezing, expansion valve vibration, compressor pib teeb meem thiab tsis raug kaw tuaj yeem tshwm sim.Teeb meem nrog microchannel coils tsis muaj kev zam. "
Raws li Jeff Preston, tus thawj coj ntawm kev pabcuam kev pabcuam ntawm Johnson Controls, kho microchannel coils tuaj yeem nyuaj vim lawv cov qauv tsim tshwj xeeb.
"Nto soldering yuav tsum tau alloy thiab MAPP gas torches uas tsis nquag siv nyob rau hauv lwm yam khoom siv.Yog li ntawd, ntau tus neeg cog lus yuav xaiv los hloov cov coils es tsis txhob sim kho. "
Thaum nws los txog kev tu microchannel coils, nws yog qhov yooj yim dua, hais tias Mark Lampe, tus thawj tswj hwm khoom rau cov khoom siv hluav taws xob ntawm Cov Khoom Siv HVAC, vim tias cov txhuas fins ntawm finned tube coils khoov tau yooj yim.Ntau qhov nkhaus fins yuav txo tau cov cua nkag los ntawm lub kauj, txo kev ua haujlwm.
"Cov khoom siv VERTEX thev naus laus zis yog qhov tsim muaj zog dua vim tias cov txhuas fins zaum me ntsis hauv qab lub tiaj tus aluminium tub yees thiab yog brazed rau cov hlab, txhais tau tias txhuam tsis hloov cov fins loj," Lampe hais.
Kev Tu Kom Yooj Yim: Thaum ntxuav cov microchannel coils, tsuas yog siv cov tshuaj me me xwb, tsis yog-acidic coil cleaners lossis, ntau zaus, tsuas yog dej xwb.(muab los ntawm tus neeg nqa khoom)
Thaum ntxuav microchannel coils, Preston hais tias zam cov tshuaj hnyav thiab ntxuav lub siab, thiab tsuas yog siv cov tshuaj ntxuav me me xwb, tsis yog acidic coil los yog, feem ntau, tsuas yog dej xwb.
"Txawm li cas los xij, ib qho me me ntawm cov tub yees yuav tsum muaj qee qhov kev hloov kho hauv cov txheej txheem tu," nws hais."Piv txwv li, vim qhov me me, cov tub yees tsis tuaj yeem tso tawm thaum lwm cov khoom siv hauv lub cev xav tau kev pabcuam.Tsis tas li ntawd, lub ntsuas vaj huam sib luag yuav tsum tsuas yog txuas nrog thaum tsim nyog kom txo qis kev cuam tshuam ntawm cov tub yees ntim. "
Preston tau hais ntxiv tias Johnson Controls tab tom siv cov xwm txheej hnyav ntawm nws Florida pov thawj hauv av, uas tau txhawb nqa kev txhim kho microchannels.
"Cov txiaj ntsig ntawm cov kev ntsuam xyuas no tso cai rau peb txhim kho peb cov khoom tsim los ntawm kev txhim kho ntau cov alloys, yeeb nkab thicknesses thiab txhim kho chemistry nyob rau hauv cov txheej txheem tswj huab cua brazing kom tsis txhob coil corrosion thiab xyuas kom meej qib kev ua tau zoo thiab kev ntseeg tau tiav," nws hais."Kev txais yuav cov kev ntsuas no yuav tsis tsuas yog ua kom cov tswv tsev txaus siab xwb, tab sis tseem yuav pab txo qis kev xav tau kev saib xyuas."
Joanna Turpin is a senior editor. She can be contacted at 248-786-1707 or email joannaturpin@achrnews.com. Joanna has been with BNP Media since 1991, initially heading the company’s technical books department. She holds a bachelor’s degree in English from the University of Washington and a master’s degree in technical communications from Eastern Michigan University.
Cov Ntsiab Lus Txhawb Nqa yog ib ntu them nyiaj tshwj xeeb uas cov tuam txhab kev lag luam muab cov ntsiab lus zoo, tsis muaj kev ncaj ncees, tsis yog lag luam rau cov ntsiab lus txaus siab rau ACHR cov neeg mloog xov xwm.Tag nrho cov ntsiab lus txhawb nqa yog muab los ntawm cov tuam txhab tshaj tawm.Xav koom nrog peb cov ntsiab lus txhawb nqa?Hu rau koj tus neeg sawv cev hauv zos.
Ntawm Kev Thov Hauv qhov webinar no, peb yuav kawm txog qhov hloov tshiab tshiab rau R-290 ntuj refrigerant thiab nws yuav cuam tshuam li cas rau HVACR kev lag luam.
Post lub sij hawm: Apr-24-2023