Dab tsi yog cov ntsiab lus tseem ceeb ntawm ib qho - xaus hluav taws xob cua sov caij?
Tso lus
Ib qho - tas cov cua sov, raws li cov khoom siv cua sov ua tau zoo, yog siv dav hauv pwm cua sov, khoom siv kho mob, tshuaj reactors, thiab lwm yam kev siv. Lawv cov kev ua tau zoo, kev ua haujlwm cua sov, thiab kev ua neej nyob yog nyob ntawm qhov ua tau zoo thiab kev sib raug zoo ntawm ntau yam tseem ceeb. Cov hauv qab no yog cov lus piav qhia ntxaws txog cov ntsiab lus tseem ceeb ntawm ib qho - xaus cua sov caij thiab lawv cov haujlwm:
1. Cov Cuab Yeej Hluav Taws Xob (Heating Element)
Cov hlau cua sov yog "lub siab" ntawm ib qho - xaus cua sov caij, ncaj qha txiav txim siab nws cov cua sov efficiency thiab lifespan. Nws yog lub hauv paus tseem ceeb uas hloov hluav taws xob hluav taws xob mus rau lub zog hluav taws xob. Nws feem ntau yog ua los ntawm high-resistivity, siab- kub resistant alloy cov ntaub ntawv, feem ntau nickel-chromium alloys (xws li Cr20Ni80) thiab hlau-chromium-aluminium alloys (xws li FeCrAl). Nickel-chromium alloy cua sov xov hlau muaj qhov zoo oxidation tsis kam, siab - qhov kub thiab txias, thiab kev ua haujlwm, ua rau lawv haum rau nruab nrab- thiab qis- cov ntawv siv cua sov (feem ntau tsis tshaj 1200℃). Hlau-chromium{18}}aluminium alloy cua sov xov hlau muaj siab dua -kub tsis kam (tuaj yeem tiv taus qhov kub siab tshaj 1400 degree), muaj zog tiv taus ntau dua, thiab tus nqi qis dua, tab sis lawv cov corrosion kuj yog me ntsis qis dua nickel{21}}chromium alloys, ua rau lawv haum rau} qhov kub thiab txias.{22. Cov txheej txheem winding ntawm cov cua sov hlau kuj tseem ceeb heev. Lub winding ceev thiab qhov sib txawv yuav tsum raug tswj raws li qhov ntsuas lub zog thiab txoj kab uas hla ntawm lub raj kom tsis txhob muaj cua sov los yog cua sov tsis sib xws.
2. Lub tes tsho hlau (lub plhaub sab nraud)
Lub tes tsho hlau ua raws li "kev tiv thaiv kev tiv thaiv" rau cov cua sov hlau thiab tseem ua lub luag haujlwm hauv kev ua kom sov. Nws cov khoom thiab phab ntsa thickness ncaj qha cuam tshuam rau thermal conductivity thiab mechanical zog. Ib qho - xaus cov cua sov feem ntau siv lub tes tsho stainless hlau, nrog 304 stainless hlau yog qhov kev xaiv ntau tshaj plaws vim nws cov corrosion kuj zoo heev, thermal conductivity, thiab nqi- ua tau zoo. Rau siab - kub, siab corrosive, los yog siab - cov ntawv siv siab, cov ntaub ntawv tshwj xeeb xws li 316L stainless hlau (nrog rau cov corrosion kuj muaj zog) thiab Incoloy alloy (tiv taus kub thiab oxidation) yog siv. Lub tes tsho phab ntsa thickness yuav tsum nruj me ntsis tswj; Ib phab ntsa tuab heev txo cov thermal conductivity, thaum lub phab ntsa nyias dhau los cuam tshuam rau lub zog ntawm lub tshuab thiab ua rau nws raug puas tsuaj los ntawm kev cuam tshuam, kev co, lossis siab -kub deformation. Tsis tas li ntawd, ib qho kawg ntawm lub tes tsho yuav tsum tau muab kaw kom tsis txhob ya raws lossis impurities nkag mus rau cov khoom siv rwb thaiv tsev tom qab.
3. Insulating Filler Khoom
Cov khoom siv insulating muab tso rau nruab nrab ntawm cov cua sov hlau thiab lub tes tsho hlau. Nws lub luag haujlwm tseem ceeb yog kom ua tiav cov hluav taws xob rwb thaiv tsev ntawm cov cua sov xaim thiab lub tes tsho, thaum tseem pab ua kom sov thiab tiv thaiv kev nyab xeeb xws li xau thiab luv luv Circuit Court. Tam sim no, cov khoom siv tseem ceeb yog magnesium oxide hmoov (MgO), uas tau muab faib ua magnesium oxide hmoov zoo tib yam thiab siab -kub magnesium oxide hmoov. Cov qub yog tsim rau nruab nrab thiab qis kub qhov xwm txheej, thaum tom kawg tau txais kev kho mob tshwj xeeb, muaj qhov zoo dua siab - kub rwb thaiv tsev thiab tiv thaiv - condensation zog, thiab tuaj yeem hloov mus rau siab - qhov kub thiab txias ib puag ncig. Cov txheej txheem filling muaj qhov cuam tshuam loj rau cov nyhuv rwb thaiv tsev. Txoj kev siab -siab filling yuav tsum tau siv los xyuas kom meej tias magnesium oxide hmoov yog nruj nreem ntim, tsis muaj qhov khoob lossis xoob. Txwv tsis pub, qhov khoob yuav tshwm sim vim cov khoom siv shrinkage ntawm qhov kub thiab txias, ua rau txo qis hauv kev ua haujlwm rwb thaiv tsev thiab txawm tias ua rau luv luv Circuit Court. Qee cov khoom siv siab- kawg siv ntau dua- cov ntaub ntawv insulating zoo xws li alumina hmoov los txhim kho cov rwb thaiv tsev ruaj khov.
4. Leads (Pins)
Cov hlau lead yog "choj" txuas ib zaug xwb - xaus cua sov lub caij mus rau sab nraud Circuit Court, lub luag hauj lwm rau kev xa hluav taws xob sab nraud rau cov cua sov hlau. Lawv cov khoom siv, txoj kab uas hla, thiab txoj kev sib txuas ncaj qha cuam tshuam rau conductivity thiab kev sib txuas kev ntseeg tau. Feem ntau siv lead ua- tawm rods yog ua los ntawm tooj liab lossis tooj liab alloys. Tooj liab muaj cov khoom siv hluav taws xob zoo heev, txo cov hluav taws xob poob. Rau qhov siab - qhov kub thiab txias los yog ib puag ncig tshwj xeeb, stainless hlau lead- tawm rods yog siv ua ke nrog siab - kub resistant xov hlau. Txoj kab uas hla ntawm cov hlau lead-tawm pas nrig yuav tsum tau muab piv rau qhov ntsuas tam sim no; qhov siab dua qhov tam sim no, qhov loj ntawm txoj kab uas hla yuav tsum tau tiv thaiv cov hlau lead- tawm pas nrig los ntawm overheating thiab hlawv tawm vim tam sim no ntau dhau. Kev sib txuas ntawm cov hlau lead- tawm pas nrig thiab cov cua sov hlau feem ntau yog soldered (piv txwv li, nyiaj brazing). Lub solder sib koom yuav tsum ruaj thiab tsis muaj qhov tsis xws luag; txwv tsis pub, kev tiv thaiv ntau dhau yuav ua rau muaj cua sov hauv cheeb tsam, cuam tshuam rau lub neej ntawm cov cua sov. Nyob rau tib lub sijhawm, kev sib txuas ntawm cov hlau lead- tawm pas nrig thiab lub tes tsho yuav tsum tau muab kaw kom zoo thiab tiv thaiv kom tsis txhob muaj dej nkag.
5. Sealing Structure (kawg Cap / Plug)
Lub sealing qauv yog nyob rau ntawm qhov tsis yog - cua sov kawg (tiav- tawm qhov kawg) ntawm ib qho - qhov kawg cua sov. Nws lub luag haujlwm tseem ceeb yog cais tawm sab nraud cov dej noo, plua plav, roj, thiab lwm yam impurities, tiv thaiv cov khoom siv insulating thiab cua sov, tiv thaiv kev puas tsuaj los yog tiv thaiv corrosion. Cov txheej txheem sealing feem ntau suav nrog cov tshuab compression sealing, vuam sealing, thiab silicone sealing. Mechanical compression sealing siv lub zog siab kom nruj cov khoom tiv thaiv lub tes tsho; nws yog qhov yooj yim, qis- nqi, thiab haum rau ib puag ncig zoo ib yam. Vuam cov ntsaws ruaj ruaj (xws li argon arc vuam) muab kev sib khi zoo dua, tiv taus qhov kub thiab txias, thiab haum rau siab - kub, siab - av noo, los yog corrosive ib puag ncig. Silicone seals yog tsim rau qis- qhov kub thiab txias ib puag ncig, muaj qhov hloov tau zoo thiab cov khoom sib khi, tab sis muaj qhov tsis zoo siab - qhov kub thiab txias. Kev ntseeg siab ntawm cov qauv kev sib khi yog qhov tseem ceeb rau kev tiv thaiv kev ya raws thiab kev tiv thaiv ntawm ib qho - xaus cua sov. Thaum lub foob tsis ua tiav, kev nkag mus ntawm cov dej noo yuav ncaj qha ua rau lub cua sov kom luv -circuit thiab hlawv.
6. Flanges / Mounting Cheebtsam (xaiv tau, nyob ntawm daim ntawv thov scenario)
Rau ib qho - cov khoom cua sov uas yuav tsum tau ua kom ruaj khov, flanges, threads, los yog clips yog cov khoom siv tseem ceeb uas muaj lub luag haujlwm rau kev txhim kho cov cua sov kom ruaj khov rau cov khoom siv, kom tsis txhob muaj kev txav los yog co thaum cua sov, thiab txhim kho kev nyab xeeb thiab ruaj khov. Cov khoom siv flange feem ntau yog tib yam li cov khoom siv tes tsho (xws li, stainless hlau flange). Cov kev tshwj xeeb sib txawv xws li puag ncig flanges thiab square flanges tuaj yeem raug xaiv raws li lub installation qhov taub thiab cov khoom yuav tsum tau ua. Threaded mounting qhov chaw yog ncaj qha machined mus rau qhov kawg ntawm lub tes tsho thiab txuas mus rau cov khoom siv ntawm threads, ua rau installation yooj yim. Snap- ntawm qhov chaw mounting yog tsim rau cov khoom siv hnyav thiab yooj yim rau disassemble. Qhov loj thiab lub zog ntawm cov mounting qhov chaw yuav tsum tau sib phim raws li lub zog, qhov hnyav, thiab qhov chaw ua haujlwm ntawm cov cua sov kom tsis txhob muaj cua sov los yog vibrating vim qhov tsis ruaj ntseg installation, cuam tshuam rau cov cua sov thiab cov khoom siv kev nyab xeeb.
Hauv cov ntsiab lus, qhov kev ua tau zoo ntawm ib qho - xaus cua sov yog qhov tshwm sim ntawm kev sib koom tes ntawm nws cov khoom tseem ceeb. Cov khoom siv tsis zoo lossis kev ua haujlwm tsis zoo hauv ib qho khoom yuav cuam tshuam ncaj qha rau cov cua sov ua haujlwm, kev pabcuam lub neej, thiab kev nyab xeeb ntawm cov cua sov. Thaum xaiv thiab siv, nws yog ib qho tsim nyog yuav tau xav txog qhov kev thov tshwj xeeb (xws li qhov kub thiab txias, nruab nrab, thiab kev teeb tsa) thiab ua tib zoo saib xyuas qhov zoo ntawm txhua qhov khoom kom ntseeg tau tias cov cua sov ua tau raws li qhov yuav tsum tau ua.
