Cov kab ntau lawm hauv kev ua tshuaj lom neeg, kev tsim tshuaj, thiab cov nroj tsuag tshuaj tshwj xeeb feem ntau ntsib qhov tsis ruaj tsis khov ntawm qhov hluav taws xob los yog hloov pauv tus nqi thaum lub sij hawm batch hloov, pib, los yog load variations. Cov viav vias no ua rau cov txiaj ntsig cua sov tsis sib xws, tawm ntawm - cov khoom lag luam tshwj xeeb, lossis xav tau kev cuam tshuam ntawm phau ntawv txhawm rau txhim kho cov txheej txheem. Nyob rau hauv xws li dynamic kev khiav hauj lwm ib puag ncig, txoj kev lub tshav kub exchanger teb rau ceev ceev hloov nyob rau hauv kub thiab ntws los ua ib tug tseem ceeb tshaj plaws nyob rau hauv tag nrho cov system kev cia siab rau thiab cov khoom zoo. PTFE cov khoom siv hluav taws xob muaj cov cwj pwm txawv piv nrog rau lwm cov qauv tsim, zoo li cov khoom siv tshwj xeeb thermal zog thiab kev tsim kho.
PTFE heat exchangers cia siab rau ib tug nyias fluoropolymer raj los yog liner -feem ntau yog 0.5 mus rau 2 mm tuab - cais cov txheej txheem kua los ntawm cov kev txhawb nqa hlau qauv los yog cov kev pab cuam kua. Qhov qis thermal conductivity ntawm PTFE, nyob ib ncig ntawm 0.25 W / m·K, muab lub exchanger siab thermal inertia dua nyias-walled hlau units. Thaum inlet kub los yog txaus tus nqi hloov dheev, hloov tshav kub tsis kho instantaneously. Cov txheej txheem polymer ua raws li qhov tsis sib xws, ua kom qeeb ntawm kev nthuav tawm ntawm qhov kub thiab txias hloov thoob plaws phab ntsa. Qhov no ua rau cov lus teb maj mam ntxiv ntawm qhov hluav taws xob, uas tuaj yeem ua rau muaj txiaj ntsig zoo rau damping sudden spikes tab sis yuav tsum tau ua tib zoo tsim qauv kom tsis txhob overshoot lossis lag hauv cov txheej txheem rhiab.
Flow variations cuam tshuam kev ua tau zoo sib txawv thiab. PTFE qhov tshwj xeeb ntawm qhov chaw sab hauv ua kom tsis muaj kev sib txhuam tsis zoo txawm tias thaum hloov nrawm, txo qhov kev pheej hmoo ntawm ntws -induced maldistribution uas tuaj yeem tshwm sim hauv rougher hlau lossis graphite channels. Txawm li cas los xij, vim tias cov qauv tsim feem ntau siv cov cheeb tsam loj dua los yog ntau yam - dhau kev npaj los them rau qhov qis qis, cov ntawv tshaj tawm hauv cov raj teb qeeb dua rau kev hloov kho twj. Hauv kev siv tiag tiag, qhov no txhais tau hais tias PTFE exchangers zoo li ua kom lub qhov hluav taws xob ruaj khov zoo dua thaum lub sij hawm ntws ntws, txawm hais tias lawv yuav siv sij hawm ntev dua kom ncav cuag qhov tshiab ruaj khov- xeev kub dua siab dua - conductivity hlau units.
Thermal stability sawv tawm raws li lub zog tseem ceeb. PTFE tseem nyob ruaj khov thiab chemically inert mus txog 260℃yam tsis muaj corroding los yog embrittling, yog li ceev ceev kub swings tsis degrade lub tshav kub -hloov nto los yog tsim tshiab fouling txheej. Cov khoom tsis yog- nplaum ntxiv pab tswj kev ua haujlwm zoo ib yam los ntawm kev tiv thaiv kev tsim cov nplai uas tuaj yeem ua rau cov lus teb qeeb hauv cov hlau lossis graphite exchangers. Raws li kev paub dhau los hauv kev lag luam, kev sib xyaw ua ke no tso cai rau PTFE units los tswj kev sib tw lossis hloov pauv - cov haujlwm ua haujlwm nrog kev ua haujlwm tsawg dua lub sijhawm.
Kev sib piv nrog lwm cov kev daws teeb meem cua sov qhia txog cov kev hloov pauv no. Cov tshuab hluav taws xob siv hluav taws xob niaj hnub teb yuav luag tam sim vim lawv hloov hluav taws xob ncaj qha mus rau hauv tshav kub nrog tsawg kawg nkaus thermal loj hauv lub caij nws tus kheej. Qhov hluav taws xob kub ua raws li lub zog hloov pauv hauv vib nas this, ua rau lawv zoo tagnrho rau qhov tseeb, huv si - dej ua haujlwm tab sis tsis tsim nyog rau kev sib cais cov kwj deg. Lub tshuab hluav taws xob hauv pem teb cua sov siv qis- cov kua dej nrawm nrawm nrog cov cua sov loj hauv cov kav dej thiab cov nruab nrab ib puag ncig, ua rau cov lus teb qeeb heev rau kev hloov pauv-feem ntau teev- kom ncav cuag qhov sib npaug tshiab. Lawv muab qhov tseem ceeb ntawm cov khoom tso tawm tsis tu ncua, tsis yog kev hloov kho sai. Phab ntsa- dai boilers tswj cov dej compact circuits optimized ceev ceev-nce los ntawm siab- nrawm nrawm thiab hlau tsim, xa cov lus teb ceev ceev hauv qhov chaw cua sov tab sis tsis muaj cov tshuaj siv dav dav uas xav tau rau cov txheej txheem corrosive kua. PTFE heat exchangers zaum ntawm cov kev kub ntxhov no: qeeb dua li cov hluav taws xob hluav taws xob ncaj qha lossis cov hlau sib txuas ua ke tsis tau ruaj khov thiab zam txim siab dua siab dua -cov qauv tsim hluav taws xob thaum lub sijhawm ua haujlwm corrosive.
Ntau yam cuam tshuam cov lus teb ceev thiab qhov kub thiab txias hauv PTFE exchangers. Tube txoj kab uas hla, hla kev, thiab tag nrho cov cheeb tsam saum npoo ua lub luag haujlwm tseem ceeb - cov kav dej me me los yog ntau dua hla nce qhov nrawm thiab txhim kho cov cua kub hloov pauv tab sis nce siab poob thaum hloov pauv. Cov khoom ua kua xws li viscosity thiab cov cua kub tshwj xeeb kuj cuam tshuam rau qhov kub thiab txias ntawm qhov nruab nrab ntawm lub cev. Hauv kev siv tiag tiag, qhov loj me me nrog kev suav cov dej ntws thiab cov qauv ua ntu zus pab kwv yees lub sij hawm lag luam thiab tiv thaiv kev overshoot.
Cov lus qhia tswv yim rau kev txhim kho kev ruaj ntseg suav nrog kev txhim kho cov tso tsheb hlau luam lossis cov nkoj sib xyaw hauv qab thaum yuav tsum tau tswj qhov kub thiab txias heev thaum lub sijhawm hloov pauv ntau zaus. Hloov pauv tau- cov twj nrawm ua ke nrog cov ntsuas ntsuas qhov tseeb tso cai rau kev hloov pauv yooj yim dua li sai sai ntawm -tawm tswj. Saib xyuas qhov sib txawv ntawm qhov hluav taws xob thiab qhov hluav taws xob nrog siab - daws teeb meem sensors muab cov lus ceeb toom ntxov ntawm cov teeb meem teb thiab ua kom zoo - kho lub voj voog tswj. Feem ntau ua yuam kev thaum lub sij hawm tsim qauv muaj xws li underestimating lub thermal inertia ntawm PTFE txheej thiab xav tias lub sij hawm teb zoo ib yam li hlau exchangers, uas ua rau oversized li qub los yog tsis txaus PID tuning. Lwm qhov yuam kev tsis tu ncua tshwm sim thaum xaiv cov txheej txheem catalog units yam tsis tau txheeb xyuas cov ntaub ntawv ua haujlwm ib ntus rau lub voj voog dej thiab lub luag haujlwm, ua rau muaj qhov loj dua - dua - qhov ntsuas kub ntawm qhov kev cia siab thaum lub sijhawm hloov pauv ntau lawm.
Hauv cov ntsiab lus, PTFE cov khoom siv hluav taws xob tau teb rau qhov kub thiab txias hloov pauv nrog qhov ua kom qis dua, ua rau muaj kev cuam tshuam vim qhov qis - conductivity barrier txheej thiab txoj kev khiav du, muab kev ruaj ntseg ntev ntev thiab fouling tsis kam hauv kev pabcuam corrosive. Txawm hais tias lawv yuav tsis sib haum nrog cov tshuaj tiv thaiv tam sim ntawm cov hluav taws xob hluav taws xob ncaj qha lossis cov lus teb ntawm phab ntsa -tua boilers, lawv muab kev xa mus ncaj qha rau qhov kev tawm tsam hnyav xav tau kev cais tshuaj. Ntau qhov chaw muaj kev lag luam-txawm hais tias tsis tu ncua siab- kab purity, batch tshuaj txheej txheem, los yog sib txawv -load tshuaj lom neeg cov tshuaj tiv thaiv-yuav tsum tau customized tshav kub-hloov tsim cov kev daws teeb meem uas integrate meej kua cov ntaub ntawv, yuav tsum transients, tswj cov tswv yim, thiab lub luag hauj lwm mus ua hauj lwm nyob rau hauv kev ruaj ntseg, ntau lawm.
