Watt-Density Matching Logic rau Internally-Wired Cartridge rhaub
Watt-density (surface-load, W / cm²) ua raws li cov ntsiab lus txwv tsis pub siv lub neej ntawm txhua lub tshuab hluav taws xob, suav nrog cov khoom siv sab hauv. Ntau pawg engineering tsuas yog hais txog tag nrho lub zog tsis muaj zog, tsis quav ntsej qhov ntsuas qhov ntsuas qhov chaw. Tib lub zog tag nrho cov ntsiab lus sib piv nrog cov raj sib txawv thiab cov cua sov-ntev coj tus nqi sib txawv ntawm qhov sib txawv. Lub siab watt-density ntau dhau ua rau sheath over-temperature, accelerate aging ntawm magnesium-oxide muab tub lim thiab thaum ntxov burnout, txawm nrog high-zoo sab hauv-wired qauv thiab hwm raw-khoom. Tsim nyog watt-density matching yog tus yuam sij los hloov cov qauv-qhov zoo rau hauv kev txhawb nqa-kev pabcuam-lub neej.
Watt-density yog hais txog lub hwj chim tso tawm rau ib chav tsev zoo-cua sov-qhov chaw ntawm lub plhaub. Cov mis laij lej sib raug nrog cov sheath sab nraud-inch thiab ua haujlwm zoo-cua sov-ntev. Internally-wired cartridge heaters txhawb siab tshaj 25 W / cm² nto-load raws li qhov zoo tagnrho-haum-pwm qhuav-cua sov ua haujlwm-qhov xwm txheej. Tus nqi no sawv cev rau qhov ntsuas qhov ntsuas siab tshaj plaws nyob rau hauv ib puag ncig zoo meej-kub-dissipation. Qhov tseeb tso cai watt-density yuav tsum raug txo kom sib npaug raws li qhov tsis zoo-kub-dissipation mob, ib nrab-qhov sib txawv installation, nquag-thermal-cycle-condition.
Installation-fit clearance exerts prominent influences watt-density tso cai. Thaum clearance ntawm sheath thiab pwm-bore inner-wall enlarges, huab cua-txheej thermal-resistance nce, sheath heat-dissipation mob zuj zus. Nyob rau tib lub zog tag nrho, qhov tseeb sheath nto-kub nce siab heev. Raws li kev xeem-cov ntaub ntawv, 0.1 hli ntxiv tshem tawm tuaj yeem thawb sheath kub nce los ntawm kaum ob centigrade degrees. Txawm tias cov khoom siv hluav taws xob sab hauv-wired nrog cov cuab yeej tiv thaiv kev vibration zoo tsis tuaj yeem cuam tshuam kev ua haujlwm poob los ntawm kev siv ntau dhau watt-density nyob rau hauv kev teeb tsa tsis zoo.
Ntau hom kev ua haujlwm sib txawv sib txawv raws li qhov sib txawv pom zoo watt-density range. Rau nruj-fit embedded-pwm cua sov nrog zoo cua sov-dissipation, watt-density tuaj yeem ncav cuag 20-25 W / cm². Rau kev ua hauj lwm-qhov xwm txheej nrog ib nrab-clearance thiab intermittent-operation, pom zoo watt-density poob rau 12-18 W / cm². Rau qhov tsis zoo-kub-dissipation semi-dry-state ua haujlwm-qhov xwm txheej, watt-density yuav tsum tswj qis dua 10 W / cm².
表格
| Kev ua haujlwm-Kev faib tawm | Pom zoo Watt-Density Range | Kev txwv qhov tseem ceeb | Ceeb toom rau Internally-Wired Cartridge rhaub |
|---|---|---|---|
| Tight-fit embedded pwm cua sov, zoo cua sov dissipation | 20-25 W / cm² | Mould-bore machining kam rau ua | Xyuas kom cov cua sov-segment tau kos tag nrho yam tsis muaj qhov raug |
| Intermittent-operation, me me installation clearance | 12-18 W / cm² | Air-gap thermal-resistance | Tsis txhob nrhiav ntau lub zog tag nrho qhov muag tsis pom |
| Poor-heat-dissipation, semi-dry-state ib puag ncig | Tsawg dua lossis sib npaug li 10 W / cm² | Tsawg tshav kub-hloov efficiency | High-vibration-thov tseem xaiv cov qauv sab hauv-wired, txo watt-density ib txhij |
| Dry-burning exposed-state (forbidden application) | ‑‑‑‑‑‑ | Muaj kev pheej hmoo siab kub heev | nruj me ntsis txwv tsis pub cua sov-seem raug qhuav-hlawv |
Nws xav tau kev qhia tshwj xeeb tias cov qauv siv hluav taws xob sab hauv-wired-out optimizes anti-vibration thiab high-ambient-temperature-resistance kev ua tau zoo, tab sis tsis tuaj yeem txhim kho qhov tso cai watt-density saum-limit. Structure-optimization daws teeb meem kev sib txuas-kev ntseeg siab, tsis yog nqa cov cua sov-dissipation txwv ntawm sheath thiab internal-filling nruab nrab. Qhov muag tsis pom kev nrhiav kev teeb tsa lub zog siab rau sab hauv-wired cartridge rhaub yuav tseem ua rau kub dhau-laus tsis ua haujlwm.
Thaum lees paub cov kev qhia tshwj xeeb, qhov yuav tsum tau muaj lub zog tag nrho tsis tuaj yeem raug cais tawm ntawm qhov cua sov-ntev thiab txoj kab uas hla ntawm kev sib sau ua ke. Yog hais tias tag nrho-lub zog xav tau siab nyob rau hauv qhov kev txwv-installation-chaw txwv, nthuav dav cua sov-ntev kom zoo los yog ua kom txoj kab uas hla kom txo tau cov cheeb tsam watt-density. Tsis tas li ntawd txawm tias qib premium-qib sab hauv-wired cartridge rhaub yuav ntsib kev pabcuam-lub neej luv.
Watt-density xam thiab txheeb xyuas yuav tsum muaj nyob rau hauv specification-xaiv txaus rau kev vibration-intensive high-ambient-temperature khoom. Kev ntsuas qhov ntsuas qhov sib xyaw ua ke ntawm kev teeb tsa-haum rau kev ua siab ntev, cua sov-dissipation-qhov xwm txheej thiab kev vibration-siv txhawb kev tsim nyog ntawm cov khoom siv hluav taws xob sab hauv-wired.
