Lub tshuab hluav taws xob hluav taws xob hluav taws xob yuav tsum tau muab tshem tawm tag nrho ntawm cov khoom siv los tiv thaiv kev sib kis thiab tso cai rau kom tsis muaj menyuam tiav. Ib qho qauv, kab rov tav plhaub-thiab-tube chav tsev yuav ib txwm muaj lub pob taws me me ntawm cov kua ntim rau hauv qab ntawm lub plhaub thiab hauv qab U-khoov ntawm cov hlab. Kev tsim cov dej ntws puv nkaus tsis yog kev sib tsoo; nws yog ib qho kev txiav txim siab geometric configuration uas ua kom txhua qhov kawg ntawm cov kua tuaj yeem tawm ntawm qhov sib hloov hauv qab lub ntiajteb txawj nqus. Rau PTFE exchangers siv nyob rau hauv tu cev los yog high-purity txheej txheem, ua tiav atag nrho drainable PTFE exchanger nras tsimyog ib qho kev xav tau ntawm engineering.
Yog vim li cas ib tug tag nrho Drainable Design yog qhov tseem ceeb
Hauv kev siv tshuaj, biotechnology, khoom noj khoom haus, thiab kev siv tshuaj zoo, cov kua qaub uas nyob hauv lub tshav kub hloov pauv tom qab kev tsim khoom tuaj yeem ua rau:
Kev sib kisntawm cov khoom sib txawv batch
Kev loj hlob ntawm microbialnyob rau hauv cov kua dej stagnant
Kev ntxuav tsis tiavthaum lub sij hawm huv-hauv-qhov chaw (CIP) cycles
Tsis ua kom tsis muaj menyuamvalidation (xws li, steam-in-place cycles)
Cov qauv kev cai xws li cGMP (tam sim no Kev Tsim Khoom Zoo) thiab cov lus qhia zoo li ASME BPE (Bioprocessing Equipment) qhia meej tias cov txheej txheem cov cuab yeej yuav tsum tau ntws mus rau qhov loj tshaj plaws. Ib tug PTFE exchanger, nrog nws cov tshuaj inert thiab tsis-stick nto, yog ib txwm yooj yim rau ntws dua ib chav tsev hlau, tab sis tus qauv geometric tseem yuav tsum ua raws li cov ntsiab cai tshwj xeeb.
Cov Ntsiab Cai Tsim Nyog rau Kev Ua Haujlwm Zoo Tshaj Plaws PTFE
1. Vertical Orientation ntawm Exchanger
Lub exchanger yog tsim los rau antsug installation. Kev taw qhia ntsug tso cai rau lub ntiajteb txawj nqus ua ib yam ntawm cov chaw sab hauv, tsis zoo li kab rov tav kev taw qhia qhov twg cov ntsiab lus qis thiab U-khoov cov kua nplaum. Lub axis ntsug kuj ua kom yooj yim rau kev teeb tsa ntawm lub nozzles thiab txoj hauv kev ntws.
2. Tube-Side Drainage: Hauv qab inlet, sab saum toj qhov hluav taws xob
Lub raj-sab kua dej nkag mus rau ntawm lubhauv qabthiab tawm ntawm qhovsaumntawm qhov ntsug exchanger. Qhov kev teeb tsa no ua kom ntseeg tau tias cov kua dej uas tseem tshuav hauv cov hlab ntsha thaum cov dej tsis txaus yuav ntws mus rau hauv qab qhov nkag / qhov hluav taws xob nozzle. Nrog rau hauv qab nozzle ua hauj lwm raws li ob qho tib si inlet thiab ntws qhov hluav taws xob, tsis muaj kua yog daig nyob rau hauv lub qis tube daim ntawv los yog raj xaus. Rau U-tube pob, yuav tsum tau saib xyuas tshwj xeeb: thaj tsam U-bend yuav tsum tau taw qhia rau sab saud kom qhov qhib kawg taw tes rau hauv qab, tiv thaiv cov kua tuav hauv qhov khoov.
3. Plhaub-Side Drainage: Sloped lossis Conical hauv qab
Lub plhaub sab yuav tsum yog tus kheej-draining. Qhov no yog ua tiav los ntawm aconical lossis sloped hauv qab plhaub tsim, nrog lub plhaub-sab qhov hluav taws xob nozzle nyob ntawm qhov qis tshaj plaws. Lub taub hau tiaj tus lossis lub taub hau uas tsis muaj txoj kab nqes yuav khaws cov pob taws seem. Hloov chaw, hauv qab channel lossis lub plhaub taub hau yog tsim nrog txoj kab nqes ntawm yam tsawg kawg 3-5 degrees (los yog lub khob hliav qab ntawm 60-90 degrees) coj tag nrho cov kua mus rau ib qho, qis-point ntws nozzle.
4. Dej qhov hauv Baffles
Tag nrho cov baffles sab hauv-txawm yog ntu ntu, disc-thiab-donut, lossis lwm hom- yuav tsum muajntws qhovntawm lawv cov ntsiab lus qis tshaj plaws. Yog tias tsis muaj cov qhov no, cov kua yuav sau rau ntawm sab saud ntawm txhua qhov baffle thiab tsis tuaj yeem khiav tawm. Cov qhov dej ntws feem ntau yog drilled lossis xuas nrig nrog txoj kab uas hla ntawm 5-10 mm, tso dej yaug nrog hauv qab ntawm lub plhaub. Tus naj npawb thiab qhov loj ntawm lub qhov dej yuav tsum tsis txhob cuam tshuam rau kev hloov hluav taws xob lossis kev poob siab.
5. Zam kev tuag ceg thiab ntxiab
Tus tsim yuav tsum tsis txhob muaj 'cov ceg tuag' lossis hnab ris uas cov kua tuaj yeem sau tau. Cov ceg tuag tuaj yeem tshwm sim ntawm:
Cov cuab yeej sib txuas (thermowell, siab kais)
Cov nozzles tsis siv
Qhov sib txawv ntawm baffles thiab plhaub phab ntsa
Tube-rau-tubesheet pob qij txha uas tsis muaj dej ntws tawm
Tag nrho cov crevices sab hauv yuav tsum raug txo kom tsawg, thiab txhua qhov kab noj hniav yuav tsum yog tus kheej-draining. PTFE cov cuab yeej uas tsis yog-stick yog pab tau, tab sis geometry yog qhov kev tiv thaiv tseem ceeb.
Lub luag haujlwm ntawm PTFE Cov Khoom Siv Hauv Dej Dej
Ib lub pob PTFE, nrog nws cov hlua khi, uas tsis yog-stick, yog ib txwm yooj yim rau ntws thiab tawm tsawg dua li cov pob hlau. PTFE muaj cov coefficient tsawg heev ntawm kev sib txhuam thiab lub zog saum npoo uas repels feem ntau aqueous thiab organic kua. Droplets swb tawm yooj yim, txo cov zaj duab xis thickness uas yuav cling rau cov hlab. Txawm li cas los xij, qhov tsim qauv geometric tseem yog qhov tseem ceeb tshaj plaws: txawm tias qhov chaw tsis yog lo tsis tuaj yeem tso cov kab rov tav U-khoov.
Ua raws li ASME BPE thiab Hygienic Standards
ASME BPE (Bioprocessing Equipment) tus qauv muab cov lus qhia ntxaws ntxaws rau kev tsim cov khoom siv huv thiab cov dej ntws tawm. Cov kev xav tau tseem ceeb muaj xws li:
Qhov tsawg kawg nkaus txoj kab nqes ntawm 1% (1 cm ib 'meter') rau kab rov tav kab (txawm hais tias ntsug orientation yog nyiam rau lub exchanger nws tus kheej)
Tsis muaj radii sab hauv tsawg dua 6 hli (kom pab tu)
Nthuav cov chaw nres nkoj me me kom tso cai rau lub ntiajteb txawj nqus tag nrho yam tsis muaj cua-locking
Nto ua tiav tsim nyog rau kev pabcuam (txawm tias PTFE twb tsis ntxeem tau)
Designers ntawm atag nrho drainable PTFE exchanger nras tsimyuav tsum siv ASME BPE-2022 los yog tom qab luam tawm rau cov qauv tshwj xeeb thiab cov qauv ntsuas.
Cov tswv yim xav txog hauv Bundle Fabrication
Vertical Tube Sheet thiab Tube Layout
Lub raj xa ntawv yuav tsum tau drilled nrog cov raj uas tau npaj kom tso dej dawb ntawm lawv. Vertical tube nplooj ntawv feem ntau yog tshuab tiaj tus, tab sis cov pob khoom tau muab tso rau hauv lub plhaub ntsug. Cov hlab lawv tus kheej yog tuav nyob rau hauv qhov chaw ntawm sab saum toj thiab hauv qab cov ntawv raj raj. Rau ntev, ntsug PTFE hlab (piv txwv li, 2-4 m ntev), tensioning los yog kev txhawb nqa yuav tsum tau tiv thaiv sagging.
Kev kuaj dej pov thawj
Tom qab fabrication, lub exchanger yuav tsum raug rau akev kuaj xyuas dej. Cov dej ntws los ntawm ob sab ntawm lub raj thiab lub plhaub sab, tom qab ntawd ntws hauv qab lub ntiajteb txawj nqus rau lub sijhawm ruaj khov (xws li, 5 feeb). Cov kua nplaum seem yog sau thiab ntsuas. Ib chav tsev uas muaj dej puv yuav tsum tsis pub ntau tshaj li ob peb milliliters kua (tsuas yog tsuas yog zaj duab xis saum npoo, tsis muaj ntim ntim). Txhua qhov ntim ntim tau qhia txog qhov tsis zoo tsim.
Kev koom ua ke nrog CIP thiab SIP Systems
Lub tshuab nqus dej puv nkaus kuj tseem txhawb nqa kev huv hauv qhov chaw (CIP) thiab chav nyob hauv qhov chaw (SIP) cycles. Thaum lub sij hawm CIP, cov tshuaj ntxuav yuav tsum hu rau txhua qhov chaw ntub dej; Cov kua nplaum yuav dilute los yog hla cov kua ntxuav. Thaum lub sij hawm SIP, condensate yuav tsum ntws tag nrho kom tsis txhob muaj pooling uas tuaj yeem tiv thaiv kom tsis muaj menyuam los ntawm kev mus txog. Ib lub pob PTFE tsim kom zoo, nrog nws qhov chaw du, yooj yim dua los ntxuav thiab ua kom tsis muaj menyuam dua li cov khoom siv hlau.
Xaus: Lub Funnel-Zoo li Geometry rau Qhov Tseem Ceeb Tshaj Tawm
Lub PTFE hloov pauv tau tag nrho yog ib qho kev txiav txim siab, geometrically ntshiab tsim, qhov tseem ceeb rau cov kev cai huv huv huv ntawm cov kws tshuaj, zaub mov, thiab kev lag luam tshuaj zoo. Lub exchanger yog tsim los zoo li ib tug funnel, nrog rau txhua qhov chaw sab hauv pitched thiab nqes hav los coj qhov kawg, tseem ceeb tso tawm lub qhov rooj. Los ntawm kev siv txoj kev taw qhia ntsug, hauv qab-hauv / sab saum toj-tawm raj ntws, lub plhaub qis hauv qab, thiab ntws qhov hauv baffles, tus qauv tsim tshem tawm tag nrho cov cuab yeej ua kua. Qhov tseem ceeb tshaj plaws liter ntawm kua nyob rau hauv ib tug txheej txheem yog ib tug kawg, uas yuav tsum tau muab tshem tawm tag nrho. Atag nrho drainable PTFE exchanger nras tsimUa tau raws li qhov yuav tsum tau muaj nrog kev sib xyaw ntawm cov duab geometry ntse thiab qhov tsis zoo ntawm PTFE.
