Thaum lub sijhawm ua haujlwm ntawm lub cav, nws cov pa hluav taws xob ua kom sov txog li ob peb puas degrees, uas yog qhov txaus ntshai nyob rau hauv lub cav kaw.Txhawm rau daws qhov teeb meem no, ntau lub tsheb siv lub tshuab hluav taws xob tso cua sov - txhua yam hais txog cov ntsiab lus no tau piav qhia hauv tsab xov xwm no.
Lub hom phiaj ntawm qhov tso tawm manifold screen
Raws li koj paub, sab hauv combustion xyaw siv lub zog tso tawm thaum lub sij hawm combustion ntawm cov roj-cua sib tov.Qhov sib tov no, nyob ntawm seb hom cav thiab kev khiav hauj lwm hom, tuaj yeem hlawv ntawm qhov kub txog li 1000-1100 ° C. Qhov tshwm sim ntawm cov pa hluav taws xob kuj muaj qhov kub thiab txias, thiab thaum dhau los ntawm cov pa hluav taws xob, lawv ua rau muaj cua sov loj.Qhov kub ntawm qhov tso pa tawm ntawm ntau lub cav tuaj yeem nyob ntawm 250 txog 800 ° C!Tias yog vim li cas cov manifolds yog ua los ntawm cov qib tshwj xeeb ntawm cov hlau, thiab lawv cov qauv tsim muaj qhov siab tshaj plaws tiv thaiv tshav kub.
Txawm li cas los xij, cua sov lub tso pa tawm yog qhov txaus ntshai tsis yog rau nws tus kheej xwb, tab sis kuj rau qhov chaw nyob ib puag ncig.Tom qab tag nrho, lub manifold tsis nyob rau hauv qhov tsis muaj dab tsi, tab sis nyob rau hauv lub engine compartment, qhov chaw ntawm nws muaj ntau lub cav Cheebtsam, cables, hluav taws xob Cheebtsam thiab cables, thiab thaum kawg, lub cev qhov chaw ntawm lub tsheb.Nrog rau kev tsim ua tsis tiav lossis hauv cov cav sib xyaw ua ke, cov cua kub ntau dhau ntawm cov pa hluav taws xob tuaj yeem ua rau melting ntawm cov rwb thaiv tsev, deformation ntawm lub tank yas thiab warping ntawm nyias-walled lub cev qhov chaw, mus rau qhov tsis ua hauj lwm ntawm ib co sensors, thiab tshwj xeeb tshaj yog mob hnyav, txawm mus rau hluav taws.
Yuav kom daws tau tag nrho cov teeb meem no, ntau lub tsheb siv ib feem tshwj xeeb - lub tso pa tawm manifold heat shield.Lub vijtsam yog mounted saum lub manifold (vim tias feem ntau tsis muaj cov khoom nyob rau hauv lub manifold, tshwj tsis yog cov hlua khi los yog stabilizer), nws qeeb infrared tawg thiab ua rau nws nyuaj rau huab cua convection.Yog li, qhov kev taw qhia ntawm ib qho yooj yim tsim thiab pheej yig ib feem yuav pab kom tsis txhob muaj teeb meem ntau, tiv thaiv cov cav tov los ntawm kev tawg, thiab lub tsheb los ntawm hluav taws.
Hom thiab tsim ntawm cov pa tawm manifold cua sov shields
Tam sim no, muaj ob yam tseem ceeb ntawm cov ntxaij vab tshaus manifold:
- Cov ntxaij hlau tsis muaj thermal rwb thaiv tsev;
- Cov ntxaij vab tshaus nrog ib lossis ntau txheej ntawm thermal rwb thaiv tsev.
Cov ntxaij vab tshaus ntawm thawj hom yog stamped steel nplooj ntawv ntawm txoj kev zoo uas npog cov pa manifold.Lub vijtsam yuav tsum muaj cov hlua khi, qhov lossis qhov muag rau kev txuas mus rau lub cav.Txhawm rau kom muaj kev ntseeg siab thiab ua haujlwm rau deformation thaum rhuab, stiffeners raug ntaus rau ntawm qhov screen.Tsis tas li ntawd, qhov cua tshuab tuaj yeem ua rau hauv qhov screen, uas ua kom lub cev muaj zog thermal ntawm kev ua haujlwm ntawm cov khoom siv, thaum tiv thaiv cov cua sov ntau dhau ntawm qhov chaw nyob ib puag ncig.
Cov ntxaij vab tshaus ntawm hom thib ob kuj tseem muaj lub hauv paus steel stamped, uas yog ntxiv nrog ib lossis ntau txheej ntawm cov hluav taws kub resistant thermal rwb thaiv tsev.Feem ntau, cov ntawv nyias nyias ntawm cov khoom siv fiber ntau coated nrog cov ntawv hlau (cov ntawv ci) uas cuam tshuam txog hluav taws xob infrared yog siv los ua thermal rwb thaiv tsev.
Tag nrho cov ntxaij vab tshaus yog tsim nyob rau hauv xws li ib txoj kev raws li cov duab ntawm lub tso pa manifold los yog npog nws qhov siab tshaj plaws cheeb tsam.Cov ntxaij vab tshaus yooj yim tshaj plaws yog ib daim ntawv yuav luag tiaj tus uas npog cov khoom sau los ntawm saum toj no.Cov ntxaij vab tshaus ntau dua rov ua cov duab thiab contours ntawm lub collector, uas txuag qhov chaw hauv lub cav compartment thaum txhim kho cov yam ntxwv tiv thaiv thermal.
Kev teeb tsa ntawm cov ntxaij vab tshaus yog nqa ncaj qha rau ntawm lub manifold (feem ntau) lossis lub cav thaiv (ntau zaus tsawg), 2-4 bolts yog siv rau kev teeb tsa.Nrog rau qhov kev teeb tsa no, lub vijtsam tsis tuaj yeem cuam tshuam nrog lwm qhov ntawm lub cav thiab lub cav ntim, uas ua rau kom muaj kev tiv thaiv thiab ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm hluav taws.
Feem ntau, cov ntxaij vab tshaus manifold yog qhov yooj yim heev hauv kev tsim thiab txhim khu kev qha, yog li lawv yuav tsum tau saib xyuas tsawg.
Teeb meem ntawm kev saib xyuas thiab hloov cov pa tawm manifold cov ntxaij vab tshaus
Thaum lub sij hawm ua hauj lwm ntawm lub tsheb, lub tso zis manifold screen yog raug rau siab thermal loads, uas ua rau nws intensive hnav.Yog li ntawd, lub vijtsam yuav tsum tau kuaj xyuas ib ntus rau nws txoj kev ncaj ncees - nws yuav tsum tsis muaj qhov kub hnyiab thiab lwm yam kev puas tsuaj, nrog rau kev xeb ntau dhau.Kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov chaw uas lub vijtsam mounted, tshwj xeeb tshaj yog tias nws yog brackets.Qhov tseeb yog tias nws yog cov ntsiab lus ntawm kev sib cuag nrog cov neeg sau khoom uas raug rau cov cua sov loj tshaj plaws, thiab yog li ntawd feem ntau ntawm kev pheej hmoo ntawm kev puas tsuaj.
Yog tias pom muaj kev puas tsuaj lossis kev puas tsuaj, lub vijtsam yuav tsum tau hloov.Qhov kev pom zoo no tshwj xeeb tshaj yog siv rau cov tsheb uas lub qhov tso pa tawm manifold tau nruab ib txwm (los ntawm lub Hoobkas).Kev hloov ntawm ib feem yog ua tiav ntawm lub cav txias, ua haujlwm, nws yog txaus rau unscrew lub bolts tuav lub vijtsam, tshem tawm qhov qub thiab nruab ib yam tshiab.Vim yog qhov tsis tu ncua ntawm qhov kub thiab txias, cov bolts "stick", yog li nws raug pom zoo kom kho lawv nrog qee yam uas pab txhawb kev tig tawm.Thiab tom qab ntawd, nws yog ib qho tsim nyog los ntxuav tag nrho cov threaded qhov los ntawm corrosion thiab av.Koj tsis tas yuav ua lwm yam.
Yog hais tias lub tsheb tsis muaj qhov screen, ces retrofitting yuav tsum tau ua nrog ceev faj.Ua ntej, koj yuav tsum xaiv lub vijtsam uas haum rau kev tsim, duab, loj thiab teeb tsa.Qhov thib ob, thaum mounting qhov screen, yuav tsum tsis txhob muaj cov xaim, tso tsheb hlau luam, sensors thiab lwm yam khoom nyob ib sab ntawm nws.Thiab qhov thib peb, lub vijtsam yuav tsum tau nruab nrog kev ntseeg siab tshaj plaws, txhawm rau tiv thaiv nws cov kev vibrations thiab txav thaum lub sijhawm ua haujlwm ntawm lub tsheb.
Thaum kawg, nws tsis pom zoo kom pleev xim rau cov khoom siv tshuaj ntsuam (txawm tias muaj kev pab los ntawm cov xim tshwj xeeb kub-resistant), thov thermal rwb thaiv tsev rau nws thiab hloov tus qauv tsim.Kev pleev xim thiab hloov cov qauv tsim ntawm lub vijtsam yuav txo qhov kev nyab xeeb ntawm hluav taws thiab ua rau qhov kub thiab txias hauv lub cav compartment.
Nrog rau kev txhim kho kom zoo thiab kev hloov pauv ntawm qhov tso pa tawm manifold, qhov ntsuas kub zoo yuav raug tswj xyuas hauv lub cav, thiab lub tsheb yuav raug tiv thaiv los ntawm hluav taws.
Post lub sij hawm: Aug-27-2023