Lub neej yav tom ntej ntawm Recyclable PTFE Heater Designs nrog Separable Hlau Core thiab Polymer Sheath yog dab tsi?

Ib qho PTFE immersion rhaub yog ib pob ntawm cov khoom sib xyaw- hlau core khi rau hauv fluoro-polymer sheath. Nws yog famously nyuaj rau recycle. Tam sim no, cov tuam txhab ua lag luam loj hlob yog engineering rau tiam tom ntej kom sib cais kom zoo, zoo li lub bayonet, yog li cov hlau thiab yas yuav rov ua dua tshiab, tsis faus. Kev cog qoob loo thiab incineration ntawm PTFE cov cua sov siv yuav raug txiav tawm raws li thoob ntiaj teb kev txwv ib puag ncig nruj thiab cov tuam txhab txais cov tswv yim kev lag luam ncig. Recyclable PTFE rhaub tsim nrog modular core designs cim kev hloov pauv tseem ceeb hauv kev xav ntawm cov khoom siv cua sov, los ntawm cov khoom siv pov tseg mus rau cov khoom siv tau zoo.

Cov teeb meem niaj hnub no: sib xyaw- cov khoom sib tw
PTFE (polytetrafluoroethylene) muaj nuj nqis heev rau nws cov tshuaj tiv thaiv zoo thiab thermal stability. Tab sis cov zoo heev no kuj ua rau nws yuav luag tsis yooj yim sua kom rov ua dua-. Lub tshuab cua sov PTFE ib txwm yog tsim los ntawm kev ruaj khov ntawm cov hlau tsis muaj zog cua sov hauv PTFE sheath siv cov txheej txheem sintering. Cov tub ntxhais hlau thiab cov fluoropolymer kuj sib txuas ua ke los tsim cov qauv sib xyaw uas tiv thaiv kev sib cais.

Txoj hauv kev tam sim no ntawm qhov kawg - ntawm - txoj kev kho lub neej muaj qhov tsis zoo. Kev cog qoob loo ua rau cov fluoropolymer ruaj khov nyob rau hauv ib puag ncig thiab muaj feem cuam tshuam rau hauv microplastics uas paug cov av thiab dej hauv av-5. PTFE thiab lwm yam fluoropolymers tuaj yeem decomposed tag nrho thaum hlawv ntawm 850℃lossis siab dua, tab sis qhov ntawd siv ntau lub zog thiab ua rau muaj kev pheej hmoo ntawm kev tso tawm ib - thiab cov tshuaj polyfluoroalkyl (PFAS) - pheej "tshuaj lom mus ib txhis" uas tuaj yeem nyob hauv ib puag ncig rau ntau xyoo 3-.

Hauv kev rov ua dua tshiab txhua lub tshuab cua sov yog hauv av rau hauv cov khoom sib xyaw ua ke, ua rau qis - tus nqi tso tawm. Cov hlau kis kab mob txo qhov zoo ntawm PTFE feem, thiab PTFE cov kab mob yuav txo tau cov nqi rov qab ntawm cov tub ntxhais hlau. Kev rov ua dua tshiab thoob ntiaj teb tsuas yog 3.4% rau fluoropolymers qhia txog qhov loj ntawm qhov kev sib tw no-5 Kev tsim qauv rau kev tshem tawm, ib qho tseem ceeb ntawm kev lag luam ncig, kuj pab kom paub tseeb tias cov khoom siv tsis sib xws tsis raug ua ke hauv thawj qhov chaw thiab tsis tas yuav tsum muaj txheej txheem sib cais.

Kev ua txhaum tshiab hauv kev rov ua dua tshiab
Kev huv, qis- cov txheej txheem hluav taws xob ntawm kev rhuav tshem PTFE tau pom los ntawm kev tshawb fawb tshiab los ntawm Newcastle University thiab University of Birmingham, siv cov tshuab quab yuam thiab sodium hlau nyob rau hauv chav tsev kub, tsis tas yuav tsum muaj siab - kub kub incineration los yog cov kuab tshuaj lom-1. Cov txheej txheem grinds PTFE pov tseg nrog sodium hlau nyob rau hauv lub pob zeb, tawg cov pa roj carbon muaj zog- fluorine bonds los ua sodium fluoride- ib qho ruaj khov, benign ntsev siv hauv cov tshuaj txhuam hniav - thiab carbon-4. Qhov no yog ib kauj ruam loj rau kev rov ua dua tshiab, tab sis cov txheej txheem sib cais tau kho qhov teeb meem saum toj kawg nkaus kom cov khoom siv khib nyiab sib xyaw tsis tsim.

Lub Ntsiab Cai Sib Cais Sib Cais
Lub ntsiab lus tseem ceeb sib cais tau pom lub tshuab cua sov ua ob - thooj, detachable los ua ke uas ua hauj lwm ua ke, es tsis txhob embedded cov tub ntxhais hlau mus tas li rau hauv PTFE sheath thaum lub sij hawm tsim khoom.

Mechanical Design
Lub tswv yim yog ua raws li cov hauv paus ntsiab lus ntawm bayonet - hom cua sov cov ntsiab lus thiab ntawm lub tshuab cua sov cartridge. Lub PTFE sheath yog tsim los ua ib tug hollow raj los yog contoured puab - ib tug txhav fluoropolymer plhaub nrog qhov tseeb sab hauv qhov ntev. Cov khoom cua sov hlau, ua los ntawm cov khoom siv sib cais, muaj cov hlau tsis muaj zog hauv qhov nruab nrab thermally conductive thiab muab ntim rau hauv lub plhaub hlau. Lub cartridge swb mus rau hauv lub hollow PTFE sheath, ua hluav taws xob tiv tauj ntawm lub davhlau ya nyob twg kawg, thiab tuav ntawm lub flange los ntawm ib tug detachable foob los yog threaded cap.

Txawm li cas los xij, muaj ntau qhov kev sib tw nrog lub tswv yim tsim qauv no. Ib qho kev hloov hluav taws xob txaus yuav tsum tau ua kom cov hlau ua kom nruj heev rau sab hauv phab ntsa ntawm PTFE sheath. Ib txheej nyias ntawm thermally conductive paste tuaj yeem muab tso rau hauv qhov sib txuas kom tshem tawm cov pa tawm (txoj haujlwm tseem ceeb ntawm thermal muab tshuaj yog tshem tawm cov pa tawm thoob plaws hauv cheeb tsam sib cuam tshuam txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhav Cov tshuaj nplaum yuav tsum ruaj khov ntawm qhov kub ntawm lub rhaub (feem ntau yog 80-100 degree) yam tsis muaj degrading lossis leaching cov pa phem rau hauv da dej.

Lwm qhov teeb meem engineering yog lub davhlau ya nyob twg foob. Lub foob yuav tsum muaj peev xwm tiv thaiv kom tsis txhob muaj kev cuam tshuam ntawm corrosive da dej vapors rau hauv qhov sib txawv ntawm qhov sib txawv thaum lub sijhawm ua haujlwm tsis tau tag nrho demountable thaum kawg - ntawm - lub neej. Lwm txoj hauv kev muaj peev xwm yog compression fittings nrog PTFE gaskets, threaded caps nrog O-ring seals los yog ceev- tso clamps nrog captive foob ntsiab.

Disassembly thaum kawg ntawm lub neej
Thaum qhov kev pab cuam lub neej ntawm lub rhaub dej xaus, cov txheej txheem yog thim rov qab. Lub detachable foob tau qhib, cov tub ntxhais hlau yog rub tawm ntawm PTFE sheath, thiab ob cov ntaub ntawv tau npaj rau kev rov ua dua tshiab. Cov tub ntxhais hlau, feem ntau yog ua los ntawm npib tsib xee-chromium kuj xaim, tooj liab conductors thiab hlau los yog Incoloy sheath cov ntaub ntawv, tuaj yeem ua tiav los ntawm cov txheej txheem hlau rov ua dua tshiab yam tsis muaj kev pheej hmoo ntawm PTFE. Lub plhaub tam sim no yog ib qho khoom siv ntawm PTFE yam tsis muaj hlau sib xyaw thiab tuaj yeem raug coj mus rau cov txheej txheem fluoropolymer tshwj xeeb rov ua dua tshiab, suav nrog kev tsim kho tshuab thev naus laus zis tau tshawb fawb.

Tsav Tsheb: Economic & Ib puag ncig
Cov khoom muaj nqis rov qab
Tus tsim detachable tso tawm ntau yam khoom muaj nqis uas tau ploj niaj hnub no. Cov tub ntxhais hlau yog sau nrog cov khoom muaj txiaj ntsig zoo: npib tsib xee-chromium (NiCr) tsis kam xaim thiab tooj liab rau kev sib txuas hluav taws xob, thiab feem ntau stainless hlau lossis Incoloy rau lub plhaub cartridge. Cov hlau no tau zoo li huv si, ib zaug -kwj cov khoom muaj cov khoom seem ntau dua li kev sib xyaw- cov khoom sib tsoo. Rau cov neeg siv khoom lag luam loj nrog ntau ntau lossis ntau pua lub tshuab hluav taws xob PTFE, tag nrho cov txiaj ntsig zoo tuaj yeem pab cuam tshuam ib feem ntawm cov nqi hloov pauv.

Tsis tas li ntawd PTFE nws tus kheej muaj tus nqi ntxiv thaum rov qab tsis muaj paug. Kev ntxuav cov khib nyiab ntawm PTFE tuaj yeem siv los ua PTFE micropowders los ua cov khoom ntxiv hauv cov roj nplua nyeem, inks thiab engineering plastics. Xwb, nws tuaj yeem depolymerised rov qab rau monomers xws li tetrafluoroethylene (TFE) rau repolymerization rau hauv PTFE-3 tshiab.

Kev Lag Luam thiab Kev Tswj Xyuas Sustainability Siab
Hauv ntau lub tebchaws, Extended Producer Responsibility (EPR) cov kev tswj hwm ua rau cov neeg tsim khoom muaj lub luag haujlwm rau qhov kawg - ntawm - kev tswj hwm lub neej ntawm lawv cov khoom-33. Reparability, durability thiab recyclability-33 tau raug qhia nyob rau hauv cov khoom siv txoj cai tswj hwm ntawm European Union's Circular Economy Action Plan. Raws li cov qauv no kis tau los ntawm cov neeg siv khoom siv hluav taws xob mus rau cov khoom siv hauv kev lag luam, cov chaw tsim khoom siv hluav taws xob muab cov khoom sib cais, cov qauv siv rov ua dua tshiab yuav zoo dua los ua raws.

Kev lag luam kawg- cov neeg siv - tshwj xeeb tshaj yog tsheb, hluav taws xob thiab cov tuam txhab semiconductor - tab tom xav tau ntau lub hom phiaj rau kev hloov pauv pov tseg thiab ncig. Xaus - ntawm - lub neej disassembly ntawm cov cuab yeej tau dhau los ua qhov xav tau ntawm kev yuav khoom. Cov hom phiaj no tau txais kev txhawb nqa ncaj qha los ntawm qhov sib cais ntawm -core PTFE rhaub, nrog cov neeg siv khoom qhia txog cov khoom siv huv rov qab es tsis yog cov khoom pov tseg sib xyaw.

Kev txiav txim siab nqi / txiaj ntsig
Lub detachable tsim tsa tus nqi ntawm kev tsim khoom. Extrusion ntawm cov khoom siv cua sov yog yooj yim dua thiab pheej yig dua rau fabricate dua hollow PTFE sheaths uas yuav tsum tau muaj ib tug uniform sab hauv qhov ntev, ntxiv machining thiab zoo tswj yog yuav tsum tau rau tshem tau cov ntsaws ruaj ruaj thiab threaded kev twb kev txuas. daim ntawv thov ntawm thermally conductive muab tshuaj txhuam thaum sib dhos ntxiv cov khoom siv siv tau. Cov nqi tsim khoom tau nce los ntawm kev ua kom raug siab dua nyob rau hauv cov txheej txheem tsim khoom.

Txawm li cas los xij, ntau yam cuam tshuam cov nqi ntxiv no:

Qhov ntawd tuaj yeem txhais tau tias cov nqi tsim khoom txuas ntxiv rau cov khoom siv sib xyaw yog ntau dua li cov qauv tsim uas pom tau tias rov ua dua tshiab.

Tus nqi ntawm cov hlau reclaimed los ntawm lub detachable core tej zaum yuav muab credit mus rau qhov kawg - neeg siv los yog refunded rau tus tsim khoom.

Tus nqi qis dua rau ib qho - cov khoom ntws ntau dua li cov khib nyiab sib xyaw.

Txhim khu kev ruaj ntseg daim ntawv pov thawj xav tau tus nqi hwm thiab cov neeg siv khoom nyiam hauv kev lag luam ib puag ncig.

Hauv kev muaj tiag, rau cov neeg siv loj tag nrho cov nqi ntawm cov tswv cuab tuaj yeem tsawg dua yog tias cov nqi pov tseg thiab cov qhab nia rau cov khoom siv tau rov qab los.

Lub Xeev Tam Sim No thiab Txoj Kev Mus Los
Prototype theem
Sib cais tau -core PTFE heaters tseem muaj ntau nyob rau hauv cov qauv thiab kev cai- engineering hom. Cov ntaub ntawv pov thawj- ntawm- lub tswv yim tsim rau kev sim thiab kev sim ntsuas cov ntawv thov tau raug pov thawj los ntawm ntau lub chaw tsim khoom kub tshwj xeeb tab sis cov thev naus laus zis tseem tsis tau muaj kev lag luam dav dav rau cov khoom siv hluav taws xob zoo tib yam.

Qhov kev sib tw tseem ceeb yog kom tswj tau qhov thermal contact efficiency hla ntau txhiab lub voj voog kub yam tsis muaj kev cuam tshuam ntawm qhov cuam tshuam los yog cov khoom siv hluav taws xob. Lub sheath yuav nthuav dav thiab nthuav dav txaus siab nrog kev hloov pauv ntawm qhov kub thiab txias txij li PTFE muaj cov coefficient siab ntawm thermal expansion (li 120 txog 200 × 10-6 /℃). Cov tub ntxhais hlau nthuav dav ntawm qhov sib txawv (steel ~ 11-13x10-6 /℃C). Kev tuav lub thermal interface zoo thoob plaws qhov kev sib txawv no, yam tsis muaj kev ntxhov siab, kev txhim kho qhov sib txawv lossis kev hloov pauv hloov pauv, yog qhov teeb meem tseem ceeb hauv engineering.

Kev koom ua ke nrog Kev Siv Tshuab Tshiab
Cov txheej txheem sib cais tsis yog ib qho kev sib tw rau cov cuab yeej siv tshuaj lom neeg, tab sis yog ib qho ntxiv rau lawv. Tsim-rau-disassembly tso cai rau cov neeg kho tshuab sib cais kom muab huv ib leeg- cov khoom noj khoom haus uas tej zaum yuav ua tiav los ntawm txoj hauv kev tsim nyog tshaj plaws. Cov tub ntxhais hlau mus rau cov tsoos hlau smelters. Lub PTFE sheath tuaj yeem raug xa mus rau kev rov ua dua tshiab los yog lwm yam kev tawm dag zog qis dua -zog depolymerisation txheej txheem, xws li ambient-kub sodium- pob- milling txoj kev tsim los ntawm Newcastle University thiab University of Birmingham, muab daim ntawv qhia txog kev lag luam fluorine.

Cov kab hauv qab ntawm qhov teeb meem
Lub PTFE rhaub tsim tau rov ua dua tshiab yog ib kauj ruam tiag tiag ntawm kev lag luam ncig rau kev lag luam cua sov, vim qhov rov ua dua ntawm cov tub ntxhais hlau los ntawm polymer sheath. Cov qauv tsim no pab txhawb kev huv si thaum kawg- ntawm- lub neej, hloov cov teeb meem pov tseg- sib tov ntawm cov khoom uas nyuaj thiab kim kom sib cais- mus rau hauv cov peev txheej uas cov hlau raug xa rov qab mus rau cov smelters thiab fluoropolymer sheaths raug xa mus rau cov kwj deg. Cov teeb meem engineering ntawm kev tswj xyuas cov thermal efficiency thiab seal kev ncaj ncees hauv kev pabcuam yog qhov zoo, tab sis tsis yog insuperable. Kev lag luam xav tau kom pom tseeb cov khoom siv cua sov rov ua dua tshiab tsuas yog nthuav dav nrog kev tswj hwm kev tswj hwm thiab kev cog lus ntawm tuam txhab ib puag ncig. Kev paub txog ib puag ncig tau dhau los ua ib feem loj ntawm kev tsim kho tshiab thiab kev sib cais ntawm -core PTFE rhaub yog ib qho piv txwv ntawm yuav ua li cas cov khoom lag luam yuav raug tsim tsis yog rau kev ua tau zoo, tab sis rau lub neej thib ob.