Dab tsi yog Volumetric Kub Exchanger yog
Lub tshuab hluav taws xob ntim hluav taws xob, kuj tau piav qhia tias yog qhov kev hloov pauv zoo lossis qhov chaw khaws cov khoom siv hluav taws xob, yog lub nkoj siab uas tuav lub cev dej lossis cov dej ua haujlwm thaum lub pob ntawm cov hlab hauv nws nqa cov cua sov lossis cua txias nruab nrab. Thaum tshav kub kub dhau los ntawm lub raj phab ntsa mus rau hauv lub ntim ntim, yog li chav tsev sib txuas cov cua sov hloov nrog cov dej kub tshwj xeeb uas tuaj yeem ua tau raws li qhov xav tau tam sim ntawd.
Tube pob khoom yog qhov ua haujlwm ntawm cov khoom siv. Nws cov khoom txiav txim siab sai npaum li cas thaum tshav kub kub txav, lub chav tsev nyob ntev npaum li cas thiab cov dej chemistry nws tuaj yeem zam tau, thiab feem ntau ntawm cov qauv tsim cov raj no yog ua los ntawm tooj liab.
Vim li cas tooj liab yog cov khoom siv Tube
Tooj liab muab peb yam khoom uas nyuaj rau kev sib tw ntawm tib tus nqi. Nws muaj cov thermal conductivity siab heev, yog li lub raj me me saum npoo hloov cov cua kub txaus thiab cov khoom sib hloov nyob twj ywm compact. Nws tiv thaiv corrosion nyob rau hauv nruab nrab thiab hnyav hnyav dej thiab tsim ib tug tiv thaiv nto zaj duab xis es tsis txhob tam sim ntawd. Thiab nws yog ductile thiab yooj yim rau kev ua hauj lwm, yog li cov hlab yuav khoov mus rau lub vojvoog uas yuav tsum tau, nthuav mus rau hauv ib daim ntawv raj thiab koom nrog brazing los yog vuam yam tsis muaj cracking.
Ntshiab tooj liab kuj tiv thaiv kev tsim- ntawm cov fouling lom neeg zoo dua li ntau lwm cov ntaub ntawv, uas ua kom cov cua sov hloov mus rau qhov chaw huv si thiab tuav kev ua haujlwm tau zoo nyob rau lub sijhawm.
Copper Tube Materials siv nyob rau hauv cov chav no
| Qib | Kev piav qhia | Qhov twg yog xaiv |
|---|---|---|
| C12200 | Phosphorus-deoxidized tooj liab, siab residual phosphorus | Lub hom phiaj dav dav rau dej, chav dej thiab txheej txheem cua sov ua haujlwm |
| C12000 | Phosphorus-deoxidized tooj liab, tsis tshua muaj phosphorus | Ntau dua conductivity yuav tsum tau, los yog qhov twg lub raj yog koom nyob rau hauv txo cov cua |
| C11000 | Electrolytic tawv pitch tooj liab | Siv qhov siab tshaj plaws conductivity xav tau thiab tsis muaj hydrogen bearing kev kho cua sov koom nrog |
| C70600 thiab C71500 | Copper{0}}nickel alloys nrog 10% thiab 30% npib tsib xee | Chloride bearing, brackish los yog seawater dej thiab ntau dua velocities |
Seamless tube yog cov khoom lag luam ib txwm muaj, xaj raws li ASTM B111 rau kev pabcuam condenser thiab cov khoom siv hluav taws xob los yog hauv qab GB / T 1527 rau kos tooj liab thiab tooj liab alloy raj, thiab EN 12449 rau seamless round tooj liab raj rau lub hom phiaj dav dav. Phab ntsa thickness, txoj kab uas hla kam rau ua, temper, grain loj thiab huv si tag nrho cov ntaub ntawv ntawm specification, vim hais tias cov hlab yog nthuav mus rau hauv lub raj ntawv thiab yuav tsum deform kwv yees yam tsis muaj cracking.
Yuav Ua Li Cas Cov Tubes Npaj
Feem ntau cov khoom siv hluav taws xob siv hluav taws xob siv U-tub raj pob los yog lub raj ncaj nraim nrog cov ntawv ruaj khov lossis cov raj xa dej. Hauv U-tube tsim txhua lub raj yog khoov mus rau lub vojvoog ntev thiab ob qho tib si xaus rau hauv tib lub raj ntawv, uas tso cai rau kev nthuav tawm dawb. Nyob rau hauv ib tug ncaj raj tsim cov hlab hla los ntawm ob lub raj ntawv thiab, nyob rau hauv floating kev npaj, ib daim ntawv yuav txav mus nrog lub expanding plhaub.
Baffles ncaj qha rau lub plhaub sab ntws hla cov pob khoom, nce nrawm thiab txhim kho cov cua sov hloov mus, tab sis lawv kuj ua rau muaj kev pheej hmoo ntawm kev yaig thiab kev co. Tube sib nrug, baffle txiav thiab tus naj npawb ntawm cov hlais tau teem rau ntawm theem tsim, thiab txhua qhov kev hloov pauv rau cov pob geometry hloov pauv ob qho tib si thermal kev ua tau zoo thiab cov khoom siv thauj khoom ntawm cov raj.
Kev Xaiv Cov Cai Uas Txiav Txim Lub Neej Kev Pabcuam
Dej Chemistry:tooj liab yog cov lus teb zoo nyob rau hauv nruab nrab rau me ntsis alkaline khoom; chlorides siab, ammonia lossis sulphides hu rau tooj liab - qib nickel.
Flow ceev:tsawg heev thiab deposits daim ntawv, siab dhau heev lawm thiab lub raj erodes. Kev txwv nrawm yuav tsum tau teem los ntawm cov khoom siv raj thiab dej.
Tube Sheet khoom:lub raj thiab lub raj ntawv yuav tsum tau galvanically sib xws; ib qho kev sib koom ua ke tsis zoo concentrates corrosion ntawm qhov sib koom ua ke.
Phab ntsa thickness:teem los ntawm tus tsim lub siab nrog ib qho nyiaj pub rau corrosion thiab rau cov thinning uas tshwm sim thaum expansion.
Kub:kub siab dua ua kom corrosion thiab nplai tsim thiab txo qhov tso cai rau kev ntxhov siab ntawm lub raj phab ntsa.
Kev huv huv:kaw lub tshuab tau txais txiaj ntsig los ntawm kev huv, degreased bore uas yuav tsis tso cov khoom seem rau hauv Circuit Court.
Fabrication, installation thiab tu
Tube kawg yog ib txwm nthuav mus rau hauv cov ntawv raj nrog cov tswj dov torque, qee zaum ua raws li lub teeb foob weld qhov twg lub luag haujlwm xav tau. Tshaj - dov thins phab ntsa thiab ua hauj lwm hardens cov leeg; nyob rau hauv - dov tawm txoj hauv kev rau kev xau. Brazing thiab vuam ntawm lub raj rau fittings yuav tsum tau nqa tawm nrog muab tub lim thiab flux sib xyaw ua ke nrog cov qib, thiab nrog rau cov cua sov tso rau hauv kev tswj kom tsis txhob softening lub raj.
Ib zaug nyob rau hauv kev pab cuam, ob tug yeeb ncuab ntawm ib lub pob tooj liab yog deposits thiab dej chemistry drift. Scale los yog sludge nyob rau sab dej insulates lub raj thiab thawb cov hlau kub, uas nyob rau hauv lem accelerates corrosion nyob rau hauv lub deposit. Kev kho dej tsis tu ncua, kev tu ncua sij hawm thiab kev kuaj xyuas ntawm kev ua - dej zoo ua rau lub neej zoo dua li cov khoom hloov pauv.
Cov Ntsiab Tshuaj Ntsuam Xyuas thiab Cov Pitfalls
Paub meej cov qib tube, temper thiab phab ntsa thickness tiv thaiv cov ntaub ntawv tsim ua ntej installation.
Eddy-kev sim tam sim no ntawm cov pob khoom tau teeb tsa tsim lub hauv paus rau kev saib xyuas tom qab.
Lub siab ntsuas lub raj sab mus rau tus nqi teev thiab sau qhov tshwm sim.
Tshawb xyuas cov hlab thaiv, ua tsis tiav cov pob qij txha thiab kev co puas tsuaj ntawm baffle txoj haujlwm ntawm txhua qhov kev kaw.
Qhov yuam kev kim tshaj plaws nyob rau hauv cov khoom siv no yog txuam nrog lub raj tooj liab zoo rau cov dej tsis zoo chemistry. Ammoniacal condensate, siab chloride dej txias los yog sulphide bearing mov yuav ua kom puas lub pob ntshiab tooj liab sai sai, thiab tsis muaj kev saib xyuas yuav thim rov qab thaum nws pib. Kev tshuaj xyuas cov dej tshuaj ntsuam xyuas ua ntej cov khoom siv kho mob yog qhov kev txiav txim siab tshaj plaws ntawm qhov project.
FAQ
Q: Cov khoom siv dab tsi yog cov raj tooj liab hauv lub tshuab hluav taws xob ntim hluav taws xob?
Lawv feem ntau yog seamless ntshiab tooj liab raj hauv qib C12200 lossis C12000, uas yog xaiv rau thermal conductivity, corrosion kuj thiab formability.
Q: Vim li cas tooj liab nyiam dua hlau rau cov raj no?
Copper ua cua sov ntau zaus zoo dua li cov hlau, tiv thaiv corrosion hauv cov dej nruab nrab yam tsis muaj txheej, thiab tuaj yeem nthuav dav thiab khoov tau yooj yim dua.
Q: Thaum twg yuav tsum siv tooj liab -nickel tube hloov?
Thaum cov dej muaj cov tshuaj chloride tseem ceeb, ammonia lossis sulphide, lossis thaum cov dej ntws tawm siab txaus los ua rau muaj kev cuam tshuam ntawm cov tooj liab ntshiab.
Q: Tus qauv twg npog cov raj no?
Seamless condenser thiab tshav kub exchanger raj feem ntau txiav txim rau ASTM B111, kos tooj liab raj rau GB / T 1527, thiab lub hom phiaj dav seamless tooj liab raj rau EN 12449.
Q: Ntev npaum li cas lub raj tooj liab lub hnab ntim tau kav ntev npaum li cas?
Kev pabcuam lub neej yog nyob ntawm dej chemistry, tshaj tawm thiab kev saib xyuas tsis yog ntawm cov khoom siv nkaus xwb. Kev xaiv kom raug tuaj yeem muab kev pabcuam ntau xyoo; qhov tsis ncaj ncees lawm chemistry tuaj yeem haus tib lub pob hauv ob peb xyoos.
Q: Cov raj tooj liab puas tuaj yeem kho tom qab xau?
Cov raj xau feem ntau yog ntsaws rau ntawm ob qho kawg, nrog rau cov ntaub ntawv khaws cia kom txo tau qhov chaw hloov hluav taws xob tuaj yeem ntsuas. Retubing yog txiav txim siab thaum tus naj npawb ntawm cov plugs cuam tshuam rau kev ua haujlwm.
