Yuav Ua Li Cas Tiv Thaiv Thermocouple Carbon Deposition Accumulation nyob rau hauv Ntev -Khiav Kub Khiav Pwm

Nyob rau lub sijhawm ntev, kev ua haujlwm ntawm cov yas yas, cov khoom siv rov ua dua tshiab thiab cov nplaim taws- cov khoom siv hluav taws xob hauv cov pwm kub khiav yuav kawg tsim cov yas pyrolytic carbon deposits rau ntawm lub taub hau sensor thiab sheaths ntawm lub thermocouples, tsim thermal rwb thaiv tsev thaiv uas ua rau kub lag thiab drift. Kev tu tsis tu ncua tuaj yeem tshem tawm cov pa roj carbon txheej tam sim no, tab sis kev tiv thaiv kev ua haujlwm tuaj yeem txo qis cov pa roj carbon ntau dua li 70%, txo qhov kev saib xyuas zaus thiab ua kom cov ntsuas ntsuas qhov ntsuas qhov tseeb ruaj khov rau lub sijhawm ntev. Daim ntawv qhia txog ntau yam -cov txheej txheem tiv thaiv qhov ntev, suav nrog cov khoom sib txuam, kev ua kom zoo ntawm pwm, kev hloov pauv ntau lawm thiab kev ua haujlwm txhua hnub.

Optimize thermocouple nto khoom thiab txheej kom txo tau cov pa roj carbon deposition. Ntev -lub sij hawm kub kub oxidation yuav ua rau micro- qhov chaw ntawm qhov zoo tib yam polished stainless hlau sheath, uas yog ib qho yooj yim mus nqus carbon hais thiab tsim cov pa roj carbon tuab. Xaiv cov thermocouples nrog nano-ceramic los tiv thaiv- nplaum txheej ntawm lub taub hau thiab lub ntsej muag. Cov txheej txheej du ua rau txo qis lub zog adhesion ntawm pyrolytic carbon plua plav, thiab feem ntau cov pa roj carbon monoxide yuav raug blasted tam sim ntawd los ntawm huab cua cannon yam tsis muaj zog caking. Electropolished Inconel alloy sheath thermocouples yog siv rau kub kub corrosion molding xwm txheej. Lub du passivation nto tsis yooj yim los tsim cov ntsiab lus carbon deposition txuas. Pheej yig cov thermocouples, nrog cov tawv tawv tsis zoo, muaj cov hlau tsis sib xws, ua rau cov pa roj carbon monoxide tsim thiab tsim cov roj carbon tawv uas nyuaj rau kev ntxuav. Thaum txhim kho cov thermocouples tshiab, nws tau nthuav tawm ib txheej nyias ntawm qhov kub thiab txias thermal conductive muab tshuaj txhuam rau ntawm qhov chaw sib cuag, uas tuaj yeem cais cov pa roj carbon monoxide ib nrab thiab ua rau qeeb ntawm cov txheej txheem carbon.

Optimize kub khiav manifold thiab nozzle tus qauv tsim kom txo tau cov pa roj tsis sib haum xeeb nrog cov thermocouples Kaw thermal rwb thaiv tsev npog daim hlau yog ntxiv rau saum npoo ntawm cov manifolds loj los thaiv qhov chaw ntws. Feem ntau cov yas pyrolytic volatile gas yog thaiv kom diffuse mus rau sab nrauv thermocouple ntsuas qhov chaw. Gas paug concentrates los ntawm qhov tshwj xeeb tso pa qhib npaj rau ntawm pwm. Tsim txoj hauj lwm ntawm lub thermocouple ntsuas qhov nyob rau tom qab kawg ntawm lub nozzle deb ntawm qhov ntws channel ntawm lub rooj vag; lub rooj vag yog thaj tsam ntawm kev puas tsuaj loj tshaj plaws ntawm cov yas disintegration thiab volatile gas tsim, thiab nce qhov kev ncua deb yuav txo tau cov deposition ntawm carbon plua plav ntawm lub taub hau ntes. Rau lub rooj vag valve nozzles, siv lub tes tsho thermocouple nrog cov seamless nto, tshem cov threaded qhov uas yooj yim rau ntxiab carbon residues, thiab tawm ib tug me me ntawm cov pa microgrooves ntawm qhov ntsuas taw tes kom raws sij hawm tso cov pa roj uas tsis haum.

Kev ua kom zoo ntawm cov txheej txheem kev txhaj tshuaj molding tsis txo qis cov pa roj carbon monoxide los ntawm cov yas pyrolysis Cov kub khiav kub yog siab dhau, uas yog qhov laj thawj tseem ceeb rau kev tawg ntawm cov yas thiab cov pa roj carbon monoxide, tsim kom muaj qhov tsawg kawg nkaus uas tsim nyog melting kub raws li cov khoom siv yas, tsis txhob ntev - lub sij hawm overheating tshaj qhov kev pom zoo ua kub ntau. Txo cov yas nyob ntev ntev hauv qhov kub khiav dej ntws channel. Rau cov pwm nrog ncua sij hawm kaw, txo cov cua sov kom sov ntawm lub manifold thiab lub nozzle rau lub tshav kub standby kub los tiv thaiv cov yas zoo li qub los ntawm ntev -lub sij hawm kub pyrolysis. Tsim kom muaj qhov tob ntawm cov pwm tso tawm qhov zawj thiab qhov tso pa tawm, raws sij hawm tso cov pa roj decomposed los ntawm pwm kab noj hniav, thiab txwv cov roj ncig ze ntawm cov kub khiav thiab cov thermocouples. Qhov kom muaj nuj nqis ntawm cov khoom siv rov ua dua tshiab uas siv cov khoom siv rov ua dua yuav tsum tswj kom tsawg dua 30% thiab siab -kub stabilizer yuav tsum tau ntxiv los txo qhov kev loj hlob ntawm carbonized volatile compounds.

Standardize kev lag luam kev lag luam thiab kev saib xyuas tus cwj pwm txhua hnub los tiv thaiv kev nrawm ntawm cov pa roj carbon monoxide. Thaum lub tshuab raug kaw rau lub sijhawm ntau tshaj 30 min., qhov kub khiav qhov kub kom txuag tau qhov kub thiab txias yuav tsum tau qis dua rau 180-200℃nyob ntawm hom yas, txhawm rau txhawm rau ua kom cov pyrolysis tsis tu ncua ntawm cov seem yaj. Tsis txhob siv cov pwm tso tawm ntau dhau thaum lub sijhawm tsim khoom. Vim tias cov atomized tso tawm vapor yuav carbonized nyob rau saum npoo ntawm lub thermocouple tom qab kub kub ci, thiab ceev cov pa roj carbon txheej kom thicken. Ntxuav cov pa roj carbon me ntsis txhua ob lub lis piam es tsis txhob tos kom tsim cov pa roj carbon monoxide nyuaj; siv rab yaj phom uas tsis tshua muaj siab qhuav los tshuab tawm cov pa roj carbon plua plav tawm ntawm cov ntaub qhwv lub ntsej muag thaum lub sij hawm kaw qhov kev tshuaj xyuas, uas tuaj yeem ua tiav kom tsis txhob muaj tawv tawv. Thaum ntxuav cov pwm carbon residues, tsis txhob txhuam cov pa roj carbon monoxide mus rau qhov chaw thermocouple nrog cov cuab yeej hlau, thiab cais lub sensor nrog baffle daim hlau thaum ntxuav pwm sab hauv cov pa roj carbon.

Kev ntsuas rau kev tiv thaiv ntawm kev faib khoom thiab kev sib piv lub hom phiaj. Rau cov uas tsis yog -corrosive PP, ABS thiab cov khoom siv PC ntshiab molding, cov pa roj carbon monoxide tsawg tsawg, thiab tsuas yog yuav tsum tau saib xyuas txhua hli ntawm cov phom plua plav tshuab. Kev ceev cov pa roj carbon deposition ceev yog yuav tsum tau rau nplaim taws- retardant PA, iav fiber reinforced yas thiab cov khoom siv rov ua dua tshiab, nrog kev tu txhua lub limtiam kom huv si thiab sib txuam ntawm nano-coated thermocouples. Rau cov ntaub ntawv uas muaj corrosion thiab carbon siab, xws li PPS, LCP thiab PVC, siv Inconel coated thermocouples, ntxiv manifold kaw insulating npog, txo tag nrho lub voj voog tu ib zaug ib lub lim tiam, thiab ua ib qho kev tiv thaiv kev hloov txhua peb lub hlis kom tsis txhob kub drift yuam kev vim carbon.