Phau Ntawv Qhia Txog Kev Xaiv Txhaum tawg-Cov ntaub ntawv pov thawj zaj duab xis Capacitors: Kev cob qhia kws tshaj lij raws li 2026 Cov Qauv Kev Lag Luam thiab Kev Tshawb Fawb Kev Tshawb Fawb

I. Kev Ua Yeeb Yam Tshwj Xeeb R

Cov khoom tsim nyog rau Film Capacitors hauv Explosion-Cov ntawv pov thawj
Tsis zoo li cov neeg siv khoom siv zoo tib yam, cov khoom siv hluav taws xob siv hluav taws xob siv hluav taws xob tawg - cov khoom pov thawj yuav tsum ua kom tau raws li cov khoom siv hluav taws xob thiab tawg - cov ntaub ntawv pov thawj kev nyab xeeb. Cov kev txwv tseem ceeb suav nrog peb lub ntsiab lus hauv qab no:

Explosion-cov ntaub ntawv pov thawj kev ntsuas: Yuav tsum ua raws li GB 3836-2021 series ntawm cov qauv. Qhov tsim nyog tawg- hom pov thawj yuav tsum raug xaiv raws li qhov chaw txaus ntshai kev faib tawm ntawm daim ntawv thov (ib puag ncig roj: Zones 0/1/2; plua plav ib puag ncig: Zones 20/21/22). Hauv thaj chaw muaj kev pheej hmoo siab xws li Zone 0, kev nyab xeeb ntawm sab hauv (Ex ia) yuav tsum tau txais yuav. Lub zog hluav taws xob hluav taws xob yuav tsum tau tswj hwm hauv qhov kev nyab xeeb ntawm qhov ntsuas hluav taws xob tsawg dua lossis sib npaug ntawm 28 V thiab tam sim no Tsawg dua lossis sib npaug rau 0.1 A kom ntseeg tau tias cov khoom tawg tawg yuav tsis raug hluav taws kub thaum muaj kev ua txhaum.
Kev ua haujlwm siab heev uas yuav tsum tau ua siab ntev: Rau cov cheeb tsam tshwj xeeb xws li Northwest Tuam Tshoj, uas muaj cov cua muaj zog thiab cov xuab zeb, kev xeb siab, thiab kub kub hloov pauv, capacitors yuav tsum ua tau raws li IP65 lossis kev tiv thaiv siab dua. Kev khiav hauj lwm kub yuav tsum npog yam tsawg kawg yog -40℃rau +85 degree, thiab rau tej yam kub -xwm txheej, dav-kub specifications xws li -55℃mus rau +125℃yuav tsum tau.
Cov Kev Xav Tau Kev Ntseeg Siab: Kev tawg- cov khoom pov thawj feem ntau xav tau cov khoom tseem ceeb kom muaj lub neej ua haujlwm tsis pub tsawg tshaj 100,000 teev. Cov capacitors yuav tsum muaj tus kheej zoo tshaj plaws -kev kho muaj peev xwm, thiab lawv cov ripple tam sim no tiv taus lub peev xwm yuav tsum muaj tsawg kawg yog 20% ​​siab dua qhov kev ua haujlwm tiag tiag los tiv thaiv kev ua haujlwm tsis zoo los ntawm kev tsim hluav taws xob.
II. Tsib - Cov Txheej Txheem Xaiv Cov Txheej Txheem Txheej Txheem (txheej txheem raws li kev tshawb fawb thiab kev lees paub)
Kauj Ruam 1: Sib piv Scenario Risk Levels nrog Explosion -Proof Parameters
Ua ntej, faib cov kev phom sij ntawm thaj chaw ua haujlwm raws li GB 50058 "Code for Design of Electrical Installations in Explosive Atmospheres" kom paub meej peb qhov tseem ceeb:

Hazard Zone Hom: Sib txawv ntawm cov pa roj thiab plua plav ib puag ncig los txiav txim rau Zone kev faib tawm (piv txwv li, Zone 0 yuav tsum muaj hom kev nyab xeeb sab hauv; Zone 1 tuaj yeem siv hom flameproof lossis intrinsically muaj kev nyab xeeb)
Yam Khoom Uas Muaj Teeb Meem: Cov khoom siv hluav taws xob tau muab faib ua qhov tsawg kawg nkaus qhov hluav taws xob tam sim no rau hauv IIA (propane, thiab lwm yam), IIB (ethylene, thiab lwm yam), thiab IIC (hydrogen / acetylene, thiab lwm yam); plua plav tawm tau muab faib ua IIIA (combustible fibers), IIIB (general combustible plua plav), thiab IIIC (hlau plua plav). Siab dua -qib tawg- cov khoom pov thawj yog downward sib xws nrog qis dua - qib scenarios, tab sis qhov rov qab yog txwv tsis pub
Chav Kawm Kub: Qhov siab tshaj plaws ntawm qhov kub ntawm cov khoom siv yuav tsum yog qis dua qhov taw tes ntawm cov khoom siv hluav taws xob nyob ib puag ncig. Cov chav kawm muaj los ntawm T1 (tsawg dua lossis sib npaug li 450 degree) txog T6 (tsawg dua lossis sib npaug li 85 degree). Piv txwv li, nyob rau hauv ib puag ncig uas muaj tsawg -flash- cov tshuaj lom neeg xws li ethyl nitrate, T6-class khoom yuav tsum raug xaiv.

Kauj Ruam 2: Xaiv cov khoom siv Dielectric
Xaiv qhov tsim nyog zaj duab xis dielectric raws li cov yam ntxwv ntawm Circuit Court. Cov ntaub ntawv tshawb fawb qhia tias peb hom dielectrics tam sim no yog cov kev xaiv tseem ceeb rau kev tawg- cov ntaub ntawv pov thawj:

Hom Media	Qhov Zoo Tshaj Plaws	Daim ntawv thov	Tsim nyog rau Explosion -Proof Environments
Polypropylene zaj duab xis (MKP / PP)	Dissipation tangent Tsawg dua los yog sib npaug li 0.1%, zoo heev -frequency kev ua tau zoo, muaj zog tus kheej- kho muaj peev xwm, rwb thaiv tsev tsis kam Ntau tshaj los yog sib npaug rau 10 MΩ	High-frequency circuits, DC- txuas kev txhawb nqa, buffering thiab damping, kev nyab xeeb circuits	Pom zoo heev; haum rau ntau tshaj 90% ntawm kev lag luam tawg- pov thawj ib puag ncig
Polyester zaj duab xis (MKT / PET)	Dielectric qhov tsis tu ncua ntawm 3.3, me me thiab tus nqi qis dua rau tib lub peev xwm	DC los yog tsawg- zaus coupling, filtering, bypass	Qhov zoo tshaj plaws rau qis-Zoo siab 2 thaj chaw uas qhov chaw txwv thiab tsis tas yuav muaj qhov siab - zaus, siab - daim ntawv thov tam sim no
Polyphenylene sulfide zaj duab xis (PPS)	Tsawg kub coefficient, kev khiav hauj lwm kub ntawm -55℃mus rau +125 degree, tshuaj tiv thaiv	High -kub, siab -precision tswj circuits	Haum rau tshwj xeeb tshuaj ib puag ncig nrog huab kub hloov pauv thiab siab corrosion

 

Kauj Ruam 3: Kev Tshawb Fawb Txog Kev Ntsuas Hluav Taws Xob
Cov ntsiab lus tseem ceeb yuav tsum raug lees paub raws li kev cai nruj me ntsis raws li cov cai. Kev tshawb fawb qhia tias 80% ntawm capacitor tsis ua hauj lwm muaj feem xyuam rau qhov tsis sib haum xeeb:

Rated Voltage: Nyob rau hauv DC tej yam kev mob, kev khiav hauj lwm voltage yuav tsum tsis pub tshaj 80% ntawm tus nqi ntsuas. Nyob rau hauv AC tej yam kev mob, AC withstand voltage parameters yuav tsum tau txheeb xyuas nyias. Hauv cov ntawv thov uas muaj cov mem tes voltages, lub ncov voltage yuav tsum qis dua tus nqi ntsuas.
Ripple Tam sim no: Xaiv ib qho kev qhia tshwj xeeb uas qhov tso cai ripple tam sim no ntawm qhov kev ua haujlwm siab tshaj plaws yog 20% ​​siab dua li qhov tseeb ntawm tus nqi hluav taws xob los tiv thaiv cov cua sov ntau dhau.
Kev kam rau siab: Rau kev siv lim dav dav, ± 10% lossis ± 20% kam rau ua tau; rau precision tswj circuits, xaiv specifications nrog ± 5% los yog siab dua.
Kauj Ruam 4: Kev lees paub ntawm Encapsulation thiab Kev Tiv Thaiv Kev Ntsuas
Xaiv qhov tsim nyog encapsulation raws li qhov chaw teeb tsa:

Rau sab nraum zoov lossis siab - tej thaj chaw muaj plua plav, ua qhov tseem ceeb ntawm cov yas- cov txheej txheem epoxy encapsulated nrog kev tiv thaiv qhov ntsuas tsawg kawg IP65.
Intrinsically kev nyab xeeb circuits yuav tsum tau siv ua ke nrog kev ruaj ntseg cais, thiab capacitors yuav tsum dhau intrinsically muaj kev nyab xeeb parameter kuaj thiab ntawv pov thawj.
Nyob rau hauv ib puag ncig corrosive, xaiv stainless hlau enclosures los yog npib tsib xee-plated txhuas ntim los tiv thaiv kev sib cuag tsis zoo los ntawm txhuas oxidation.
Kauj Ruam 5: Ua raws li kev txheeb xyuas
Yuav tsum tau CCC daim ntawv pov thawj yuav tsum muaj rau kev tawg- cov khoom pov thawj hluav taws xob yuav pib siv thaum lub Tsib Hlis 2025. Raws li cov khoom tseem ceeb ntawm kev tawg- pov thawj cov khoom siv hluav taws xob, qhov sib txawv zaus, thiab lwm yam khoom siv, cov khoom siv hluav taws xob yuav tsum ua raws li cov hauv qab no:

Lawv yuav tsum tau txais kev tawg- pov thawj CCC daim ntawv pov thawj nrog rau chav ua tiav; ua ntej cov khoom uas twb muaj nyob rau hauv cov npe ntawm cov khoom tsim nyog.
Muab qhov tawg-cov ntaub ntawv pov thawj kev ntsuas kev ua tau zoo tshaj tawm los ntawm lub koom haum thib peb-ib tog kuaj, suav nrog cov ntaub ntawv pov thawj rau cov pab pawg kub thiab cov pa roj sib raug zoo.
Pib txij lub Peb Hlis 2026, siab -kev pheej hmoo tawg- cov khoom pov thawj yuav tsum tau nrog CCC traceability QR code, uas tuaj yeem luam theej duab los txheeb xyuas daim ntawv pov thawj siv tau thiab tau txais cov ntaub ntawv ntawm cov chaw tsim khoom.

III. Hom Kev Xaiv Cov Piv Txwv (raws li Kev Tshawb Fawb Txog Kev Tshawb Fawb)
Case 1: Coal Chemical Hydrogenation Unit (Zone 1, IIC hydrogen cua, Temperature Class T3)
Kev Npaj Kev Xaiv: Kev tawg- pov thawj polypropylene zaj duab xis capacitors (Ex d IIC T3) raug xaiv rau DC-Txuas Circuit Court ntawm qhov sib txawv zaus tsav. Rated voltage: 1200V (qhov tseeb ua haujlwm voltage: 800V, 67% derating); ripple tam sim no muaj peev xwm: 120 A (kev ua haujlwm tiag tiag: 80 A, 50% npoo); Kev tiv thaiv kev ntsuas: IP66
Kev yuav tsum tau nruab: yuav tsum tau siv nrog ib tug zoo - siab tswj txee; lub txee yuav tsum tau ntim nrog nitrogen kom muaj lub siab zoo ntawm 500 Pa lossis siab dua; lub txee lub foob kev ncaj ncees yuav tsum tau sim peb lub hlis twg.
Case 2: Underground Coal Mine Methane Monitoring System (Zone 0, Chav Kawm I methane ib puag ncig, Chav Kawm Kub T4)
Txoj Kev Xaiv: Intrinsically muaj kev nyab xeeb polypropylene zaj duab xis capacitors (Ex ia I T4) raug xaiv rau lub teeb liab sensor Circuit Court, nrog rau qhov ntsuas hluav taws xob ntawm 35V (qhov tseeb ua haujlwm voltage 24V, 69% derating). Circuit Court tam sim no raug txwv rau 80mA lossis tsawg dua, thiab cov capacitors yog siv ua ke nrog kev sib cais kev nyab xeeb.
Kev Txhim Kho Cov Cai: Cov ntsuas hluav taws xob hauv Circuit Court yuav tsum tau sim txhua rau lub hlis kom ntseeg tau tias lawv nyob hauv qhov chaw nyab xeeb txhua lub sijhawm.
Case 3: Plua plav ib puag ncig hauv Aluminium Powder Processing Rhiav (Zone 21, Chav Kawm IIIC hlau plua plav, Chav Kawm Kub T5)
Kev Npaj Kev Xaiv: Cov plua plav- pov thawj polyester zaj duab xis capacitors (DIP A21 T5) raug xaiv rau cov khoom siv tswj cov khoom siv plua plav. Cov ntaub thaiv npog muaj cov plua plav- nruj tsim, nrog qhov siab tshaj plaws ntawm qhov kub thiab txias tsawg dua los yog sib npaug li 100℃, thiab yog nruab nrog cov khoom siv hluav taws xob hauv av.

 

IV. Hom Kev Xaiv Pitfalls thiab cov lus pom zoo kom zam dhau lawv
Raws li cov ntaub ntawv los ntawm Ministry of Emergency Management's 2025 kev tshuaj xyuas tshwj xeeb ntawm kev tawg - cov khoom siv hluav taws xob pov thawj, 37% ntawm kev nyab xeeb ntawm kev tawg - cov khoom pov thawj stems los ntawm kev xaiv lub capacitor tsis raug. Tej pitfalls muaj xws li:

Kev tiv thaiv tsis meej pem nrog kev tawg- pov thawj cov qhab nia: IP65 tsuas yog qhia cov plua plav thiab dej thiab tsis muaj feem cuam tshuam rau kev tawg- pov thawj kev ua tau zoo. Explosion-cov khoom pov thawj yuav tsum muaj ob qho kev tawg- pov thawj (xws li, Ex d) thiab daim ntawv pov thawj tiv thaiv
Kev saib xyuas tsis txaus nyob rau hauv Kev faib Zone: Yog tias qhov tshwm sim ntawm qhov dej xau hauv ib cheeb tsam tsis tuaj yeem txiav txim siab meej, nws raug nquahu kom xaiv cov cuab yeej raws li kev faib Zone siab dua tom ntej. Piv txwv li, yog tias nws tsis paub meej tias cheeb tsam yog Zone 1 lossis Zone 2, teeb tsa cov khoom siv raws li Zone 1 yuav tsum tau ua.
Tsis quav ntsej txog kev tiv thaiv plua plav tawg: Cov ntawv thov uas muaj cov hmoov av, hmoov av hlau, thiab cov xwm txheej zoo sib xws yuav tsum cais raws li GB 12476.1 tus qauv tiv thaiv plua plav tawg; gas tawg-cov khoom pov thawj ib leeg tsis tuaj yeem siv los hloov pauv.
Kev ua tsis tiav ntawm cov kev cai derating: Nyob rau hauv siab - qhov kub thiab txias ib puag ncig, qhov ntsuas hluav taws xob yuav tsum tau derated los ntawm 10% ntxiv los tiv thaiv kev poob qis hauv kev ua haujlwm voltage vim qhov kub nce.
Cov kws tshaj lij hauv kev lag luam qhia tias yuav tsum tsim kom muaj kev tswj hwm lub neej tag nrho rau kev xaiv cov khoom siv hluav taws xob siv hluav taws xob tawg - cov khoom pov thawj: txheeb xyuas qhov sib raug ntawm kev tawg- cov ntaub ntawv pov thawj nrog rau daim ntawv thov scenario ua ntej yuav khoom; tshawb xyuas sealing thiab grounding kev ua tau zoo thaum lub sij hawm installation; thiab txib ib lub koom haum thib peb - tog los ua qhov tshwj xeeb tawg- pov thawj kev ua tau zoo txhua peb xyoos. Txoj hauv kev no tuaj yeem txo cov capacitor - cuam tshuam txog kev nyab xeeb ntawm ntau dua 90%.