Thaum lub sijhawm ua haujlwm ntawmplhaub-thiab- raj kub exchangers,Cov teeb meem ntawm kev sib txawv feem ntau tshwm sim. Kev tshuaj xyuas tsis tu ncua ntawm cov khoom siv hluav taws xob yog tsim nyog los daws cov teeb meem tam sim ntawd thiab xyuas kom meej qhov kev ua tau zoo ntawm kev tsim khoom. Thaum muaj teeb meem tshwm sim hauv lub plhaub-thiab- raj kub exchanger tab sis lub hauv paus tsis tuaj yeem txheeb xyuas tau, yuav ua li cas kev tshuaj xyuas thiab kev daws teeb meem?
I. Installation Precautions for Plhaub-thiab-Tube Heat Exchangersn
Kev ntsuas siab yuav tsum tau ua ua ntej kev teeb tsa ntawm Plhaub-thiab-Tube Heat Exchangers
Lub tshav kub exchanger yuav tsum tau kuaj hydrostatic ntawm 1.5 npaug ntawm kev ua haujlwm siab. Rau cov chav chav, qhov kev ntsuas siab yuav tsum tsis txhob qis dua lub chav dej siab ntxiv rau 0.3 MPa; rau ntu dej kub, nws yuav tsum tsis txhob qis dua 0.4 MPa. Nyob rau hauv qhov kev sim siab, lub siab yuav tsum nyob twj ywm tsis txhob poob rau 10 feeb.
Qhov chaw tsim kho txaus thiab kev nkag tau yuav tsum tau tshwj tseg thaum lub sij hawm teeb tsa ntawm Plhaub-thiab-Tube Heat Exchangers
Nyob rau hauv qhov chaw tsim kho, ib qho chaw rau rho tawm thiab tshem tawm lub raj ntim yuav tsum tau tshwj tseg ntawm lub hauv ntej kawg ntawm lub plhaub - thiab - raj kub exchanger. Tshwj xeeb, qhov kev ncua deb ntawm lub taub hau mus rau phab ntsa los yog lub ru tsev yuav tsum tsis txhob tsawg tshaj qhov ntev ntawm lub tshav kub exchanger. Qhov dav dav ntawm txoj haujlwm channel rau cov khoom siv yuav tsum tsis pub tsawg tshaj 0.8 meters. Qhov chaw ua haujlwm txaus yog qhov tsim nyog rau disassembly thiab txij nkawm.
Cov cuab yeej thiab Meters ntsia rau ntawm Plhaub-thiab-Tube Thaum tshav kub kub Exchangers Yuav tsum pom
Nws yog ib qho tseem ceeb rau kev teeb tsa cov cuab yeej thiab ntsuas ntsuas ntawm lub tshuab hluav taws xob hauv ib txoj hauv kev uas yooj yim rau kev kuaj xyuas thiab ntsuas. Lub installation qhov siab ntawm ntau yam li qub thiab cov cuab yeej siv yuav tsum yooj yim rau kev khiav lag luam thiab kev soj ntsuam, kom ntseeg tau tias txhua yam teeb meem tuaj yeem tshawb pom thiab daws tau sai.
Muaj Cov Kev Xav Tau Zoo rau Vertical Space Distance
Txoj kab ntsug ntsug ntawm qhov chaw siab tshaj plaws ntawm cov khoom siv nyob rau sab saud ntawm lub rhaub mus rau qhov qis tshaj plaws ntawm lub tsev tsim qauv yuav tsum ua kom tau raws li qhov yuav tsum tau ua rau kev teeb tsa thiab tshuaj xyuas, thiab yuav tsum tsis pub tsawg dua 0.2 meters. Qhov kev xav tau no yog tsim los pab txhawb kev saib xyuas.
II. Kev soj ntsuam ceev faj rau Plhaub-thiab-Tube Thaum tshav kub kub Exchangers
Fouling ntawm Tube Wall Surfaces
(1) Particulate Fouling: Kev sib sau ntawm cov khoom uas raug tshem tawm hauv cov kua dej ntawm qhov chaw hloov hluav taws xob. Hom fouling no kuj suav nrog sediment txheej tsim los ntawm cov khoom loj dua ntawm kab rov tav cua sov hloov chaw vim lub ntiajteb txawj nqus (yog li-hu ua sedimentary fouling) thiab tso tawm ntawm lwm cov khoom sib xyaw.
(2) Crystalline Fouling: Deposits tsim los ntawm crystallization ntawm inorganic ntsev yaj nyob rau hauv cov kua nyob rau hauv lub tshav kub hloov chaw, feem ntau tshwm sim thaum supersaturation los yog txias. Cov piv txwv muaj xws li scaling txheej ntawm calcium carbonate, calcium sulfate, thiab silicon dioxide nyob rau sab dej txias.
(3) Tshuaj Reaction Fouling: Fouling generated los ntawm cov tshuaj tiv thaiv ntawm lub tshav kub hloov chaw. Cov khoom siv hluav taws xob hloov hluav taws xob tsis tuaj yeem koom nrog hauv cov tshuaj tiv thaiv tab sis tuaj yeem ua tus catalyst rau cov tshuaj tiv thaiv.
(4) Biological Fouling: Tsuas yog cov dej txias hauv dej hiav txwv, cov fouling lom feem ntau yog hais txog microbial fouling. Nws tuaj yeem tsim cov slime, uas nyob rau hauv lem muab tej yam kev mob rau kev yug me nyuam ntawm lom fouling. Hom fouling no yog rhiab heev rau qhov kub thiab txias; Nyob rau hauv qhov tsim nyog qhov kub thiab txias, lom fouling tuaj yeem tsim ib txheej fouling ntawm cov tuab tuab.
(5) Dej khov Fouling: Fouling tsim los ntawm solidification ntawm cov kua nyob rau hauv lub supercooled tshav kub hloov chaw. Piv txwv li, thaum dej nyob hauv qab ntawm qhov chaw khov thiab khov rau hauv dej khov rau ntawm qhov chaw hloov hluav taws xob. Lub uniformity ntawm qhov kub thiab txias faib muaj feem cuam tshuam rau hom fouling no.
Kev xau ntawm Plhaub-thiab-Tube Heat Exchangers
(1) Kev kho me me Tube Bundle Leakage: Yog tias tsuas yog ob peb lub raj xau thiab nws tsis cuam tshuam rau kev ua haujlwm, cov ntsaws ruaj ruaj tuaj yeem siv los thaiv cov hlua khi los tiv thaiv kev xau los ntawm kev cuam tshuam kev sib pauv cua sov.
(2) Kev kho ntawm Loj Tube Bundle Leakage: Lub raj xa dej loj heev yuav ua rau txo qis kev sib pauv hluav taws xob zoo, yuav tsum tau hloov lub raj ntim nrog ib qho tshiab. Feem ntau, cov chaw tsim khoom raug cai muaj lub suab tom qab-muag kev pabcuam kev muag khoom thiab yuav xa cov kws tshaj lij los muab rau ntawm - kev saib xyuas qhov chaw.
Koj daim ntawv thov kev sib pauv cua sov (xws li kev ua zaub mov, kev lag luam petrochemical, lub zog txias) thiab cov yam ntxwv nruab nrab (corrosiveness/viscosity/temperature) sib txawv, yog li cov phiaj xwm tshwj xeeb yuav raug hloov kho tshwj xeeb -thov qhia rau peb paub koj cov kev xav tau, thiab peb yuav muab koj cov phiaj xwm thiab cov lus hais.
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