-
Raws li cov pwm tsis sib xws thiab cov txheej txheem yuav tsum tau muab los ntawm tus neeg siv (cov pwm sab saud thiab sab qis thiab cov pwm nruab nrab yuav tsum tau ua kom sov rau 170 ° C ib txhij), thiab ua ke nrog cov ntsiab lus tseem ceeb raupwm kub tswjxaiv pom nyob rau hauv cov kev tshawb fawb soj ntsuam, cov hauv qab no yog pom zoo lub hwj chim thiab roj twj tso kua mis xaiv rau ob pwm kub controllers:
I. Pwm Temperature ControllerKev xaiv fais fab
1. Kev ntsuas cua sov
Lub zog cua sov yuav tsum raug xam raws li qhov hnyav pwm, qhov sib txawv ntawm qhov kub thiab txias, lub peev xwm ntawm cov cua sov, thiab lub sijhawm cua sov. Cov mis yog:
Luas = W × Δt × C / (860 × T)
W: Pwm qhov hnyav (kg) (1.5t txhua rau sab sauv thiab qis pwm = 1500kg, 3t rau qhov chaw pwm = 3000kg)
Δt: Kub qhov sib txawv (170 ° C - 20 ° C ambient kub = 150 ° C)
C: Muaj peev xwm ua kom sov (0.11 rau steel pwm)
T: Lub sijhawm cua sov (xws li 1 teev)
Piv txwv xam:
Lub zog ntawm ib leegpwm kub tswjrau cov pwm sab sauv thiab sab qis:
KW = (1500 × 2) × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (xav txog kev poob qis, kev pom zoo 20% redundancy, yog li xaiv 70 kW).
Nruab nrab tuag kub tswj fais fab:
kW = 3000 × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (tib yam li 70 kW).
Kev pom zoo ntawm tus neeg tsim khoom:
Cov pwm loj-tonnage (piv txwv li, 3-tuj nruab nrab pwm) xav tau lub zog ntau dua los xyuas kom meej lub sijhawm ua ntej. Xa mus rau kev teeb tsa ntawm cov pwm hauv cov tshuab tuag-casting tshaj 800 tons (24 kW / pwm). Txawm li cas los xij, tus neeg siv yuav tsum muaj cua sov tag nrho, yog li yuav tsum muaj kev suav ua tiav.
2. Kev tswj qhov kub thiab txias qhov tseeb thiab ruaj khov
Cov txheej txheem tuag-casting yuav tsum tau tswj qhov kub thiab txias tsis pub dhau ± 1 ° C. Yuav tsum muaj PID lossis PLC tswj qhov nruab nrog qhov ntsuas kub qhov ntsuas siab.
Dual-circuit lossis multi-circuit designs yog tsim nyog rau pwm nrog ntau cov roj raws los xyuas kom meej qhov kub thiab txias uniformity.
II. Kev xaiv roj twj
1. Kev khiav dej num thiab kev xav tau siab
Flow xam: Tag nrho cov roj channel ntim thiab kev khiav ceev yuav tsum tau ua tiav. Volume ntawm ib qho roj channel (inch 19mm = 1.9cm, ntev 11m = 1100cm):
V = πr² × L = 3.14 × (0.95)² × 1100 ≈ 3125cm³ = 3.125L/channel.
Tag nrho tus nqi ntws rau sab saud / qis pwm: 8 roj raws, 4 qhov hluav taws xob thiab 4 qhov hluav taws xob, tag nrho ntim 25L. Kev pom zoo ntawm kev khiav dej num ≥ 100L / min yog pom zoo (kom paub tseeb tias kev sib pauv kub ceev).
Flow tus nqi rau cov pwm nruab nrab: Cov kev suav zoo sib xws, yuav tsum tau ≥ 80L / min.
Kev xav tau siab:
Ntev thiab ntau ceg roj raws yuav tsum muaj lub twj tso kua mis siab (≥ 4bar) kom kov yeej kev ua haujlwm. Lub twj tso kua mis sib nqus tsav (siab kub resistant thiab nrog kev txhawb nqa rov qab) yog pom zoo.
2. Roj twj hom thiab yam ntxwv
Cov twj tso kua mis ruaj khov: Cov qauv yooj yim, haum rau cov kev xav tau ruaj khov; variable-flow twj: Zog-txuag tab sis kim, haum rau fluctuating flow scenarios.
Khoom siv: High-temperature thermal roj (txog 350 ° C) yuav tsum muaj stainless hlau twj tso kua mis lub cev thiab kub-resistant seals (xws li fluororubber).
III. Cov lus pom zoo xaiv
Pwm Temperature ControllerConfiguration:
Upper / qisPwm Temperature Controller: 70kW cua sov lub zog, 100L / min ntws tus nqi, 4 bar siab, tsim dual-circuit.
Nruab nrabPwm Temperature Controller: 70kW cua sov fais fab, 80L / min ntws tus nqi, 4 bar siab, ib leeg-circuit tsim (ntau lub circuits yuav tsum tau rau qhov kub zoning).
Ntxiv nta:
Cua tshuab thiab roj rov ua haujlwm (rov qab cov roj thermal thaum hloov pwm).
PLC tswj, txhawb kev ntsuas kub nkhaus thiab kev txiav txim siab yuam kev.
Kev nyab xeeb thiab hluav taws xob Efficiency:
Kev tiv thaiv overtemperature, qis-kua tswb, thiab lwm yam kev ruaj ntseg nta.
Lub zog txuag hluav taws xob sib txawv ntawm lub twj tso kua mis tsim kom txo tau lub zog siv mus ntev.
IV. Cov kev ceev faj
Thaum tshav kub kub hloov dej: kub-kub hluavtaws roj (xws li biphenyl-diphenyl ether sib tov). Hloov tsis tu ncua (kev pom zoo txhua xyoo).
Cov yeeb nkab txuas: Siv 19mm txoj kab uas hla hlau kauv tubing kom txo tau cov cua sov.
Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thovtiv tauj peb!
Post lub sij hawm: Aug-11-2025
