Silicon carbide kub exchanger tube khoom
Cov yam ntxwv zoo
● Tus qauv ncaj qha rau silicon carbide tshav kub pauv cov raj: ncaj (unit: mm / m) Tsawg dua lossis sib npaug li 1.2%. Txhua cov khoom siv hluav taws xob sib pauv yuav tsum ua tiav tag nrho cov txheej txheem kev tshuaj xyuas lub raj ua ntej tawm hauv lub hoobkas.
● Dej siab tsis kam ntsuas tus qauv rau silicon carbide tshav kub txauv raj: Txhua lub raj silicon carbide raug kuaj ntawm 100 Bar (60S) kom ntseeg tau tias muaj kev nyab xeeb thiab nyab xeeb.
● EN10204-3.1 daim ntawv pov thawj muaj.
● Ib hom tshiab ntawm tubular cua sov exchanger nrog silicon carbide tshav kub exchanger tubes raws li cov tub ntxhais. Vim yog cov yam ntxwv zoo heev ntawm kev tiv thaiv corrosion, kub tsis kam, siab thermal conductivity, siab hardness, thiab hnav tsis kam ntawm silicon carbide, silicon carbide tshav kub exchangers yog tshwj xeeb tshaj yog haum rau kev ua hauj lwm ib puag ncig xws li kub, kub siab, muaj zog acid thiab alkali corrosion. , high-speed airflow yaig, thiab particle hnav; Nws yog ib qho khoom ua tau zoo heev uas tuaj yeem hloov graphite kub exchangers, stainless hlau tshav kub exchangers, tantalum hlau kub exchangers, Hastelloy tshav kub exchangers, fluoroplastic tshav kub exchangers, thiab iav lined tshav kub exchangers.
● Silicon carbide heat exchangers muaj qhov zoo tshaj plaws ntawm cov cua sov hloov pauv, me me thiab ntau compact piv rau cov khoom siv hluav taws xob sib txawv, tuaj yeem txuag tau 70% ntawm qhov chaw nruab nrab piv rau iav lined heat exchangers ( tib lub tshav kub hloov pauv yuav tsum muaj qhov sib pauv me me). Vim nws yooj yim ntawm disassembly, sab ntawm silicon carbide tshav kub exchanger tube tuaj yeem nkag ncaj qha rau kev ntxuav lossis tshuaj xyuas, uas ua rau cov nqi tu qis.
Khoom specifications
|
Nominal Loj |
Sab nraud txoj kab uas hla ± Xmm |
Inner Diameter ± Xmm |
ToleranceX mm |
Tawm ntawm roundness mm |
Qhov siab tshaj plaws L ± 2mm |
|
DN 8 |
8 |
6 |
±0.1 |
Tsawg dua lossis sib npaug rau 0.2 |
2000 |
|
DN10 |
10 |
8 |
±0.2 |
Tsawg dua lossis sib npaug rau 0.2 |
2000 |
|
DN 14 |
14 |
11 |
±0.3 |
Tsawg dua lossis sib npaug rau 0.3 |
4000 |
|
DN19 |
19 |
14.5 |
±0.4 |
Tsawg dua lossis sib npaug rau 0.4 |
4000 |
|
DN 25 |
25 |
20 |
±0.5 |
Tsawg dua los yog sib npaug rau 0.5 |
4000 |
|
DN 35 |
35 |
25 |
±0.7 |
Tsawg dua lossis sib npaug rau 0.7 |
4000 |
|
DN 38 |
38 |
28 |
±0.8 |
Tsawg dua lossis sib npaug rau 0.8 |
4000 |
Daim ntawv thov Scenario
Haum rau cov khoom siv hauv tubular heat exchangers (tseem hu ua plhaub thiab raj kub exchangers)
Haum rau ntau yam txheej txheem tshuaj xws li cua txias, condensation, cua sov, evaporation, nyias nyias evaporation, thiab nqus
Tshwj xeeb tshaj yog haum rau ntau yam corrosive tshuaj xws li:
1. Muaj zog corrosive acids xws li bromine, sulfuric acid, hydrofluoric acid, nitric acid, hydrochloric acid, thiab lwm yam;
2.Sodium hydroxide lossis lwm lub hauv paus muaj zog;
3.Halogenated tebchaw;
4.Salt tov thiab organic compounds.
Kev tshawb fawb keeb kwm ntawm silicon carbide ceramic kub exchanger
Nyob rau hauv kaum xyoo dhau los, vim tsis muaj zog, kev txuag hluav taws xob tau ua ntxiv. Ntau yam tshiab thiab lub zog txuag hluav taws xob ua kom zoo dua niaj hnub no, thiab kev siv cov khoom siv rwb thaiv tsev zoo xws li cov refractory fibers tshiab tau txo cov cua sov ntawm lub cub tawg. Kev siv cov cuab yeej combustion siab heev tau txhim kho combustion, txo tus nqi ntawm cov combustion tsis tiav, thiab cov huab cua-roj piv kuj zoo li tsim nyog. Txawm li cas los xij, thev naus laus zis ntawm kev txo qis cov cua sov poob thiab rov ua kom cov pa hluav taws xob pov tseg hluav taws xob tseem tsis tau nce sai. Feem ntau ntawm cov qhov cub kub kub hauv kev lag luam tuaj yeem tso cov pa roj mus txog 1300 degree, thiab lub zog hluav taws xob poob yog qhov hnyav. Txhawm rau txhawm rau txhim kho cov thermal efficiency ntawm lub qhov cub cua sov thiab ua tiav lub hom phiaj ntawm kev txuag hluav taws xob thiab kev txo qis, kev rov ua kom cov pa hluav taws xob pov tseg hluav taws xob kuj yog ib txoj hauv kev tseem ceeb kom txuag hluav taws xob.
Feem ntau muaj ob txoj hauv kev kom rov qab tau cov pa hluav taws xob pov tseg: ib qho yog preheat lub workpiece; Qhov thib ob yog preheat cua rau combustion. Flue gas preheating workpieces yuav tsum muaj lub ntim loj rau kev sib pauv cua sov, uas feem ntau txwv los ntawm qhov chaw ua haujlwm (cov chaw ua haujlwm sib txuas tsis tuaj yeem siv txoj kev no). Preheating cua combustion yog ib txoj kev zoo dua, uas yog feem ntau configured nyob rau hauv lub qhov cub cua sov, thiab tseem yuav txhim khu combustion, accelerate lub cua sov ntawm lub cub tawg, thiab txhim kho cov thermal kev ua tau zoo ntawm lub cub tawg. Qhov no tsis tsuas yog ua tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem, tab sis kuj ua tiav cov txiaj ntsig tseem ceeb ntawm kev txuag hluav taws xob thaum kawg.
Txij li thaum xyoo 1950, Tuam Tshoj tau siv preheaters rau preheating cua ntawm cov chaw tsim khoom, cov ntaub ntawv tseem ceeb yog tubular, cylindrical hluav taws xob thiab cam khwb cia hlau thaiv tshav kub exchangers, tab sis kev sib pauv efficiency yog tsawg. Nyob rau xyoo 1980, Tuam Tshoj tau ua tiav cov dav hlau, dav hlau hluav taws xob, sib xyaw thiab lwm yam khoom siv hluav taws xob, feem ntau los daws qhov teeb meem ntawm cov khib nyiab rov qab los ntawm qhov nruab nrab thiab qis. Cov txiaj ntsig tseem ceeb tau ua tiav hauv kev rov qab los ntawm flue roj pov tseg cov cua sov hauv qab 100 degree, thiab kev sib pauv cua sov tau zoo dua. Txawm li cas los xij, ntawm qhov kub thiab txias, cov khoom siv ntawm cov khoom siv hluav taws xob tseem txwv, kev pab cuam lub neej yog tsawg, kev saib xyuas kev ua haujlwm loj lossis tus nqi siab, uas cuam tshuam rau kev nce qib thiab kev siv.
Feem ntau ntawm cov khoom siv hluav taws xob siv tam sim no yog cov khoom siv hluav taws xob hlau, uas tsuas yog siv tau rau qhov kub thiab txias. Lawv tsis tuaj yeem siv ncaj qha thaum cov roj kub siab. Cov huab cua txias ntau yuav tsum tau nkag mus, thiab yuav tsum muaj kev tiv thaiv qhov kub thiab txias, xws li lub tshuab cua txias thiab lub tshuab tswj. Thaum cov huab cua txias yog infiltrated, qhov kub ntawm lub tshav kub exchanger rov qab yuav tsawg.
Ceramic heat exchangers tau tsim tau zoo nyob rau hauv cov kev txwv ntawm cov hlau kub exchangers vim hais tias lawv tau zoo dua daws cov teeb meem ntawm corrosion kuj thiab kub tsis kam thiab tau dhau los ua qhov zoo tshaj plaws tshav kub exchanger rau recovering high-temperature pov tseg tshav kub. Tom qab xyoo ntawm kev xyaum ntau lawm, nws tau pom tias cov khoom siv hluav taws xob ceramic tau zoo heev. Nws cov txiaj ntsig tseem ceeb yog: qhov kub thiab txias zog, zoo oxidation tsis kam thiab thermal shock kuj. Lub neej ua haujlwm ntev, kev saib xyuas qis, txhim khu kev qha thiab ruaj khov, thiab ua haujlwm yooj yim. Tam sim no nws yog cov cuab yeej zoo tshaj plaws rau kev rov qab los ntawm qhov kub thiab txias flue roj pov tseg thaum tshav kub kub.
Cov thev naus laus zis tshiab ntawm cov khoom siv hluav taws xob hloov hluav taws xob uas hloov cov hlau nrog ceramics, uas yog thawj zaug tsim thiab muab tso rau hauv kev siv, tau muab tso rau hauv National Torch Program. Cov thev naus laus zis tshiab no hloov cov huab cua txias thaum chiv thawj siv hauv cov chaw tsim khoom rau hauv cov cua kub, uas tsis yog tsuas yog txhim kho kev ua haujlwm zoo tab sis kuj txuag tau ntau lub zog. Txij li thaum ceramic heat exchangers yog ib qho ntawm cov cuab yeej tseem ceeb rau kev txhim kho kev siv hluav taws xob thiab muaj ntau yam kev lag luam siv, lawv cov kev nce qib thiab daim ntawv thov kev cia siab tau zoo heev.
Ceramic heat exchangers muaj qhov zoo hauv qab no:
(1) Kev siv cov khoom siv hluav taws xob ceramic yog qhov ncaj qha, yooj yim, nrawm, ua haujlwm zoo, ib puag ncig tus phooj ywg thiab txuag hluav taws xob. Tsis tas yuav tsum muaj cua txias lossis kev tiv thaiv qhov kub thiab txias, kev saib xyuas tus nqi qis, thiab tsis tas yuav tsum tau ua haujlwm ntawm cov khoom siv hluav taws xob ceramic. Muaj feem xyuam rau cov khoom siv hluav taws xob rov qab thiab kev siv cov roj hluav taws xob hluav taws xob hauv ntau qhov chaw, tshwj xeeb tshaj yog daws qhov teeb meem uas cov khib nyiab hluav taws xob ntawm ntau lub qhov cub hluav taws xob kub siab dhau los siv;
(2) Lub xeev xav kom qhov kub ntawm cov khoom siv hluav taws xob ceramic yuav tsum siab dua lossis sib npaug li 1000 degree. Txij li thaum nws tiv taus qhov kub thiab txias, nws tuaj yeem muab tso rau hauv qhov chaw kub kub. Qhov siab dua qhov kub, qhov zoo dua qhov kev sib hloov ntawm cov cua sov thiab lub zog txuag ntau dua;
(3) Hloov cov khoom siv hluav taws xob hloov pauv hauv qhov kub thiab txias;
(4) daws cov teeb meem ntawm kev sib pauv cua sov thiab kev tiv thaiv corrosion hauv kev lag luam tshuaj;
(5) Ceramic tshav kub exchangers muaj zog adaptability, kub tsis kam, corrosion kuj, siab kub zog, zoo oxidation kuj, ruaj khov thermal shock thiab lub neej ntev kev pab cuam.
Ceramic kub exchangers yog dav siv nyob rau hauv ntau yam cua sov rauv, cua kub rauv, cua sov kho rauv, tawg furnaces, roasters, melting furnaces, soaking furnaces, roj thiab roj boilers thiab lwm yam furnaces nyob rau hauv cov hlau, machinery, tsev cov ntaub ntawv, petrochemical, non- ferrous hlau smelting thiab lwm yam kev lag luam. Lub tshuab no siv cov cuab yeej thim rov qab los hloov pauv thiab tso tawm cov cua sov hauv ob chav tso cua sov kom ua kom lub zog rov qab los ntawm cov pa roj cua kub, thiab tom qab ntawd ua kom sov cov cua kub thiab cov pa kom siab tshaj 1000 degree. Txawm tias cov khoom siv hluav taws xob qis qis qis (xws li blast furnace gas) tuaj yeem ua tiav qhov hluav taws xob ruaj khov thiab kev sib txuas kom zoo, uas tuaj yeem txuag tau 40-70% roj. Cov zis tau nce ntau dua 15%, oxidation thiab hlawv ntawm steel billets yog txo los ntawm ntau tshaj 40%, NOx emission tsawg dua 100 ppm, thiab flue gas emission kub yog qis dua 160 degree, uas zoo heev txo. lub tsev cog khoom nyhuv ntawm lub ntiaj teb.
Cov khoom siv hluav taws xob ntau ua los ntawm cordierite, mullite, siab alumina, coke gemstone thiab lwm yam ntaub ntawv muaj cov thermal conductivity tsis zoo thiab kev ua haujlwm tsis zoo ntawm cov cua sov. Silicon carbide ceramic heat exchangers tau tsim tau zoo nyob rau hauv cov kev txwv ntawm cov hlau kub exchangers. Qhov laj thawj tseem ceeb yog tias ntxiv rau qhov zoo ntawm cov khoom siv hluav taws xob xws li kub kub, tiv thaiv corrosion, siab kub lub zog, oxidation tsis kam, zoo thermal shock resistance, lub neej ntev, ruaj khov thiab txhim khu kev qha, thiab lwm yam. zoo thermal conductivity thiab kub siab mechanical zog (lub zog, creep resistance, thiab lwm yam) yog qhov zoo tshaj plaws ntawm cov ntaub ntawv ceramic uas paub, ua rau nws zoo tshaj plaws tshav kub exchanger rau recovering kub kub khib nyiab.
Silicon carbide ceramic heat exchangers tuaj yeem siv dav hauv ntau lub tshuab cua sov, cua kub cua sov, cua sov cua sov rauv, tawg furnaces, roasters, melting furnaces, soaking furnaces, roj thiab roj boilers thiab lwm yam furnaces nyob rau hauv cov hlau, machinery, tsev ntaub ntawv, petrochemical. , non-ferrous hlau smelting thiab lwm yam lag luam. Nws txoj kev siv yog ncaj qha, yooj yim, ceev, txuag hluav taws xob, txuag hluav taws xob (zog txuag tus nqi 25 ~ 45%), tus phooj ywg ib puag ncig, thiab nws lub neej kev pab cuam yog kaum ob lub sij hawm ntawm cov hlau kub exchangers nyob rau tib txoj hauj lwm, uas tsis tsuas yog txo. cov nqi rau cov lag luam, tab sis kuj txuag lub zog rau lub teb chaws.
Kev xaiv ntawm tshav kub exchanger tube thiab tube pass tus naj npawb ntawm cov qauv tsis
1. Kev xaiv ntawm cov khoom siv hluav taws xob sib hloov cov raj hluav taws xob
Thaum tshav kub kub exchanger tubes tuaj yeem ua los ntawm cov raj dawb, cov raj threaded, kauv grooved raj, thiab lwm yam. Hauv kev xaiv cov raj cua sov, cov hauv qab no yuav tsum tau xav txog.
(1) Tube txoj kab uas hla
Qhov me me txoj kab uas hla, ntau compact thiab pheej yig dua lub tshav kub exchanger yog, thiab ib tug zoo dua piv ntawm tshav kub hloov zaj duab xis coefficient rau kuj coefficient yuav tau. Txawm li cas los xij, qhov me me ntawm txoj kab uas hla, qhov ntau dua qhov siab poob ntawm lub tshav kub exchanger. Nyob rau hauv cov xwm txheej ntawm kev ua tau raws li qhov tso cai poob siab, nws feem ntau pom zoo kom siv lub raj φ19mm. Rau cov kua dej uas muaj qhov ua kom zoo, ib lub raj uas muaj ib txoj kab uas hla ntawm φ25mm yog siv los ntxuav yooj yim. Rau cov txheej txheem ua kua nrog roj-kua ob-theem ntws, feem ntau siv lub raj loj dua. Piv txwv li, nyob rau hauv reboilers thiab boilers, tshav kub exchangers yog feem ntau φ32mm thiab φ51mm inch. Thaum tshav kub kub pauv cov raj ncaj qha rhuab los ntawm hluav taws yog feem ntau φ76mm inch.
(2) Tube ntev
Thaum tsis muaj theem hloov pauv hloov hluav taws xob, lub raj ntev dua, qhov siab dua qhov kub hloov pauv coefficient. Nyob rau hauv tib lub tshav kub hloov chaw, kev siv cov raj ntev ua rau muaj qhov me me ntws hla ntu ntu, qhov ntws ntau dua, thiab tsawg dua cov raj xa mus, uas tuaj yeem txo cov kev khoov ntawm cov khoom siv hluav taws xob, uas ua rau muaj kev poob qis dua. . Ntxiv mus, thaum siv cov raj ntev ntev, tus nqi tshwj xeeb ib square meter ntawm tshav kub hloov chaw kuj qis dua. Txawm li cas los xij, cov raj ntev ntev ua rau kev tsim khoom nyuaj. Yog li ntawd, feem ntau xaiv ib lub raj ntev ntawm 4 mus rau 6 meters. Rau cov khoom siv hluav taws xob uas muaj qhov kub hloov pauv loj lossis tsis muaj theem hloov, lub raj ntev ntawm 8 txog 9 meters tuaj yeem xaiv.
(3) Tube kev npaj thiab lub raj nruab nrab nrug
Kev npaj ntawm cov raj ntawm cov ntawv raj feem ntau suav nrog ob hom: square arrangement thiab triangular arrangement. Qhov kev npaj ntawm daim duab peb sab yog qhov tsim nyog rau cov dej ntws tawm ntawm lub plhaub sab nraud thiab muaj ntau cov hlab ntsha. Qhov kev npaj square yog qhov zoo rau kev ntxuav ntawm lub plhaub sab. Yuav kom ua tau raws li lawv cov kev tsis txaus siab, ib qho kev npaj square tig ntawm ib lub kaum ntse ntse (piv txwv li, ib qho kev hloov pauv square) thiab cov duab peb sab nrog kev tu channel raug tsim. Lub voj voog concentric kuj tseem siv tsawg dua, uas feem ntau yog siv rau cov khoom siv hluav taws xob me me. Lub raj sib nrug yog qhov kev ncua deb ntawm qhov chaw ntawm ob lub raj uas nyob ib sab. Qhov me me ntawm qhov sib nrug ntawm lub raj, cov khoom siv yuav ntau dua, tab sis nws yuav ua rau lub raj xaim kom tuab, ua kom huv si tsis yooj yim, thiab ua rau lub plhaub siab poob. Vim li no, qhov kev xaiv dav dav yog (1.25 ~ 1.5) ua (ua yog lub taub sab nraud ntawm lub raj).
2. Kev xaiv tus naj npawb ntawm cov raj xa mus thiab lub plhaub hom
Tus naj npawb ntawm cov raj xa mus yog 1 ~ 8, thiab 1, 2 lossis 4 lub raj xa khoom feem ntau siv. Raws li tus naj npawb ntawm cov raj xa mus nce, tus nqi ntws hauv lub raj nce, thiab cov cua sov hloov cov yeeb yaj kiab coefficient kuj nce. Txawm li cas los xij, tus nqi ntws hauv lub raj yog raug rau cov kev txwv ntawm lub raj siab poob. Feem ntau siv cov nqi ntws hauv kev tsim khoom yog raws li hauv qab no: Cov dej ntws thiab cov kua dej zoo sib xws feem ntau yog 1 ~ 2.5m / s, thiab cov dej txias ntws rau cov condensers loj tuaj yeem nce mus rau 3m / s. Tus nqi ntws ntawm cov pa roj thiab chav tuaj yeem xaiv tau hauv thaj tsam ntawm 8 ~ 30m / s.
Lub plhaub tuaj yeem muab faib ua hom hauv qab no
Ib lub plhaub hluav taws xob sib hloov [Daim duab (a)], ntau hom baffles tuaj yeem muab tso rau hauv lub plhaub, feem ntau yog ua kom cov dej ntws thiab txhim kho cov cua sov. Qhov no yog qhov feem ntau siv tshav kub exchanger. Nyob rau hauv lub tshuab nqus tsev ua haujlwm ntawm ib leeg-component condensation, cov yeeb nkab tuaj yeem txav mus rau qhov chaw ntawm lub plhaub.
Muab ob npaug rau-plhaub kub exchanger nrog longitudinal baffles [Daim duab (b)] tuaj yeem ua rau lub plhaub ntws thiab txhim kho cov nyhuv thermal. Nws yog pheej yig dua ob lub tshav kub exchangers nyob rau hauv series.
Split-flow heat exchanger [Daim duab (c)] yog tsim rau cov dej ntws loj thiab cov kev xav tau qis qis. Lub baffle tuaj yeem yog lub phaj perforated thaum siv los ua ib qho condenser.
Ob chav split-flow heat exchanger [Daim duab (d)] yog qhov tsim nyog rau qhov tsis tshua muaj siab poob, thaum qhov kub thiab txias hloov ntawm ib qho kua dej tsawg heev piv rau lwm cov kua dej, thiab rau qhov sib txawv ntawm qhov kub thiab txias los yog lub raj kub hloov cov yeeb yaj kiab loj.
Cim npe nrov: Tuam Tshoj sic kub exchanger tube manufacturers, lwm tus neeg, Hoobkas
