Shenhai Explosion-Proof
Tawg-profo hluav taws xob daim ntawv thov, Cov ntaub ntawv insulation yog txawv rau hauv cov khoom thiab kua hom, tailored specifically rau cov ntaub ntawv no, tsis zoo li nrug insulation pawg.
Khoom Siv Rau Cov Khoom
hu ua “khoom siv hauv lub xeev,” Cov no yog tej yam khoom uas nyob twj ywm hauv kev ua hauj lwm rau cov neeg mob. Cov qeb no muaj xws li insulating varnish, uas yog chiv kua tab sis solidify li daim ntawv thov.
Feem ntau utilized solid insulation khoom nyob rau hauv explosion-proof fais fab khoom muaj teev nyob rau hauv qab no.
| Qib Kawm Ntawv | Piv rau lub Tracking Index (CTI) | Khoom siv lub npe |
|---|---|---|
| Kuv | 600≤CTI | ceramics (glazed), mica, Iav |
| II | 400≤CTI<600 | Melamine asbestos arc yas, silicone organic asbestos arc resistant yas, unsaturated polyester aggregate |
| III-a | 175≤CTI<400 | Polytetrafluoroethylene yas, melamine iav fiber yas, epoxy iav khaub ncaws board kho nrog arc resistant pleev xim rau ntawm qhov chaw |
| III-b-b | 100≤CTI<175 | Phenolic yas |
Cov ntaub ntawv no yog graded raws li lawv Comparative Tracking Index (CTI), Ib qho kev ntsuas superficial hluav taws xob kev kawm. tiam sis, lawv mechanical, thermal, thiab tshuaj yuav sib txawv ho, necessitating ceev faj raws li tej yam kev mob uas siv, nrog rau cov kev xav txog mechanical lub zog, tshav kub kub, thiab tshuaj.
ceramic (Glazed) Khoom Siv
Comprising inorganic non-metallic insulation tej yam khoom, Cov no yog ua los ntawm sintering hlau oxides thiab cov pa hlau compounds. Lawv attributes muaj xws li ib tug hardness ntau yam ntawm 1000.5000HV, Tensile lub zog ntawm 26.36 MPa, compressive lub zog ntawm 460.680 MPa, melting ntsiab lus tshaj 2000°C, qis thermal expansion, thiab tshuaj stability thiab kuj corrosion.
Polytetrafluoroethylene (PTFE)
No fluoroplastic khoom sustains mus sij hawm ntev siv nyob kub ntawm-180°C rau 260°C. Nws yog tshuaj ruaj khov, resistant rau corrosion, exhibits ib friction coefficient, thiab muaj ib tug tseem ceeb thermal expansion coefficient.
Phenolic Yas
Ib thermosetting yas, hu ua “ci ntsa iab” Lossis “pawg thawj coj saib phenolic,” Nws yuav to taub kub tshaj 3000°C thiab muaj excellent kub hnyiab kuj thiab tshuaj stability, Txawm hais tias nws yog brittle thiab tsis resistant rau alkali corrosion.
Ntxiv rau cov khoom insulation khoom hais, tawg-profo hluav taws xob kim heev utilizes ntau yam khoom insulating tej yam khoom, Xws li cov ntaub ntawv yas rau insulating components thiab tej khoom auxiliary khoom nyob explosion-proof motors.
Kua Insulation Khoom
Cov no xa mus rau insulating tej yam khoom uas feem ntau pom muaj nyob rau hauv daim ntawv kua, roj transformer roj, thiab khoom siv xws li insulating varnish siv rau cov impregnation impregnation, uas solidify tom qab kev kho tsis tau tseem yog kua insulators.
1. Transformer roj
• Qhov tseem ceeb rau cov khoom uas muaj hluav taws xob hluav taws xob xws li transformers, Cov roj no yuav tsum tau raws li cov qauv kawm:
• Ignition taw tes tsis qab 300°C.
• Nyem cov lus hauv qab 200°C (khob kaw).
• Kinematic viscosity tsis tshaj 1*10?? m²/s ntawm 25°C.
• Dielectric breakdown lub zog tsawg kawg yog 27kV.
• Ntim tau qhov tsawg kawg 1*10??? mloog thaum 25°C.
• Pour taw tes tsis saum-30°C.
• Acidity (nruab nrab) nce 0.03 mg/g (potassium hydroxide).
Roj Transformer roj, Feem ntau ib mineral insulating roj comprising alkanes, cycloalkanes, thiab unsaturated aromatic hydrocarbons, Muaj excellent insulating qualities thiab aging stability. tiam sis, Nws siv nyob rau hauv hoob kawm kuv tsuas khoom yog txwv vim tej degradation ntawm nws cov insulating zog dua prolonged siv.
2. varnish
Utilized rau impregnating hluav taws xob coils hauv explosion-proof khoom, insulating varnish txhim kho lawv hluav taws xob insulation capabilities. Muaj nyob rau hauv solvent kuas thiab daws-dawb ntaub ntawv, Cov varnishes no ua los ntawm ntuj los yog synthetic resins tag nrho nrog ntau yam solvents xws li benzene thiab cawv rau lub solvent kuas hom, thiab synthetic resins, kab mob solidifying kab mob, thiab active thinners xws li styrene rau lub solvent-dawb hom.
Ob hom varnish muaj ntau txoj kev xaiv los ce txawv daim ntawv thov kev pab, xyuas kom meej tias yuav tsum tau muaj kev ua hauj lwm zoo.