Nozzle qhuav Burning Failure Analysis: Thermocouple Tshaj -Kev Ceeb Toom Thaum Ntxov Adaptability rau txawv Rhaub Structures
Nozzle qhuav burning yog ib qho ntawm feem ntau zais faults hauv kev txhaj tshuaj molding khoom lag luam. Cov pa roj carbon monoxide residual, tsis haum rau kev tshem tawm thiab tsis muaj - lub zog thauj khoom - yuav ua rau muaj cua sov sab hauv ntawm lub tshuab cua sov, ua rau kom qhuav kub kub thiab txawm tias hlawv. Cov qauv sib txawv ntawm lub tshuab cua sov muaj cov yam ntxwv sib txawv ntawm cov cua sov thiab cov kev ua kom qhuav qhuav, ua rau muaj qhov sib txawv ntawm cov ntsiab lus ntawm cov thermocouple tshaj -kub ceeb toom thaum ntxov. Raws li cov ntaub ntawv simulation txhaum cai, lub hom phiaj ceeb toom ntxov tsis sib xws rau cov yam ntxwv ntawm cov qauv tuaj yeem zam kom tsis txhob qhuav kub tsis ua haujlwm thiab txuas ntxiv lub tshuab cua sov lub neej.
Qhib mica nozzle tso cua sov muaj cov cua kub qis thiab ceev cov cua kub dissipation yam ntxwv. Cov txheej txheej qhib muaj cov txheej txheem cua sov zoo, thiab cov cua sov saum npoo tuaj yeem sai sai dissipated rau sab nraud hauv kev ua haujlwm ib txwm muaj. Thaum tshav kub kub hauv zos tshwm sim vim cov pa roj carbon deposition coverage, lub tshav kub tsub zuj zuj ceev yog qeeb, thiab qhov kub nce txawv yog maj mam. Cov yam ntxwv no ua rau qeeb cov lus teb ntawm cov pa thermocouple tshaj -kub ceeb toom thaum ntxov, uas tsis tuaj yeem ntes cov paib qhuav qhuav hauv lub sijhawm. Ntev -lub sij hawm me me qhuav kub ua rau maj mam aging ntawm mica rwb thaiv tsev, tsim invisible cumulative puas thiab qeeb thermocouple drift.
Segmented ceramic nozzle heaters muaj nruab nrab cov cua sov cia muaj peev xwm thiab ruaj khov cov qauv kub tsis kam. Ceramic rwb thaiv tsev txheej thaiv ib feem ntawm cov cua sov dissipation, ua rau sab hauv cov cua kub ceev nrawm dua li cov qauv mica thaum ziab qhuav. Qhov kub nce nkhaus muaj cov yam ntxwv hloov pauv tau yooj yim, uas yooj yim los txheeb xyuas los ntawm kev saib xyuas cov qauv thermocouple. Cov pa ntau dua - qhov ntsuas kub ceeb toom ntxov tuaj yeem ua tau raws li qhov xav tau kev tiv thaiv ntawm cov qauv ceramic, kom tsis txhob muaj kev kub ntxhov hnyav. Txawm li cas los xij, kev kub hnyiab hauv zos los ntawm cov pa phem hauv ceramic tseem muaj kev pheej hmoo ntawm kev ceeb toom ntxov, yuav tsum tau ua kom zoo dua qub.
Cov hlau uas muaj nyob hauv tag nrho- cov kav hlau txais xov nozzle muaj qhov ua tau zoo ntawm cov khoom siv hluav taws xob. The dense closed metal matrix has excellent thermal conductivity and heat storage capacity, and heat cannot be quickly dissipated to the outside when dry burning occurs. Qhov kub ntawm sab hauv surges instantaneously, thiab qhov kub thiab txias nce yog ntau tshaj peb npaug ntawm cov qauv qhib. Qhov no ultra- kub hloov pauv sai ua rau cov kev xav tau siab dua ntawm cov thermocouple ceeb toom thaum ntxov. Tshwj xeeb ceev ceev- teb dhau- qhov ntsuas kub thiab nce tus nqi ntsuas ntsuas qhov ntsuas yuav tsum tau txhawm rau txhawm rau txhawm rau txhawm rau hlawv qhuav ua ntej thiab zam kom tsis txhob muaj kev kub ntxhov sai sai rau cov rwb thaiv tsev thiab cov cua sov.
Cov ntaub ntawv simulation kev sim ziab qhuav ua kom muaj kev ceeb toom ntxov hloov pauv qhov sib txawv. Raws li ib feem ntawm cov pa roj carbon deposition qhuav burning tej yam kev mob, mica heater systems muaj ib tug ceeb toom ntxov tsis tau txiav txim siab npaum li cas ntawm 12.7%, ceramic lug ntawm 4.3%, thiab hlau - nrum qauv ntawm 1.1% tom qab kev parameter optimization. Cov hlau tsis zoo- cov tshuab cua sov cam khwb cia muaj qhov kub kub ua kom puas tsuaj 3.2 npaug siab dua li cov qauv ceramic vim yog cov yam ntxwv ntawm cov cua sov. Tom qab lub hom phiaj thermocouple dynamic ceeb toom thaum ntxov txuam, qhov qhuav kub tsis ua hauj lwm tus nqi ntawm tag nrho cov qauv yog txo qis.
Kev tiv thaiv kev kub hnyiab yuav tsum tau sib phim nrog cov khoom siv hluav taws xob ua kom sov tsis txhob siv cov kev sib koom ua ke. Kev cob qhia cov qauv kev tsom xam thiab kev hloov kho thermocouple thaum ntxov ceeb toom pib teeb tsa tuaj yeem tsim cov phiaj xwm kev tiv thaiv kev kub hnyiab thiab ua kom lub neej ua haujlwm siab tshaj plaws ntawm ntau hom nozzle heaters.
