Yuav Ua Li Cas Tiv Thaiv Kev Ua Phem Hauv Flange Fixed -Installed Junction Box Platinum Resistance Temperature Detectors (PTTs)

Tus yuam sij rau kev tiv thaiv kev ua txhaum ntawm qhov flange ruaj khov - nruab lub thawv sib txuas PTTs yog nyob rau hauv kev tswj hwm kev teeb tsa zoo, kev sib khi kev ntseeg siab, thiab kev hloov pauv mus rau qhov chaw ua haujlwm. Raws li kev xyaum ua lag luam thiab IEC 60751 tus qauv, cov hauv qab no yog plaub lub tswv yim tiv thaiv tseem ceeb:

 

I. Kev tswj xyuas nruj nruj raws li txheej txheem kev teeb tsa: tshem tawm kev ntxhov siab thiab kev ua tsis zoo

Flange Alignment Installation: Siv lub laser alignment instrument lossis dial taw qhia kom ntsuas qhov coaxiality ntawm cov yeeb nkab thiab flange. Qhov sib txawv yuav tsum tsawg dua los yog sib npaug li 0.1 hli kom tsis txhob muaj qhov sib npaug ntawm qhov sib khi, uas tuaj yeem ua rau kom tawg.

Uniform Bolt Tightening: Siv lub torque wrench kom nruj bolts nyob rau hauv peb theem nyob rau hauv ib kab pheeb ces kaum los xyuas kom meej ib yam preload (siv tus qauv: pom zoo torque rau DN50 flanges yog 40-50 N·m) los tiv thaiv bolt qaug zog tawg.

Arc-Shole Lead Wire Wiring: Khaws ib qho kev hloov pauv hloov pauv tsis zoo ntawm qhov loj dua lossis sib npaug li 150mm ntawm qhov sib txuas lub thawv inlet. Tsis txhob straightening los yog nruj heev heev bundling kom tshem tawm shear kev nyuaj siab ntawm cov conductors tshwm sim los ntawm thermal expansion thiab contraction.

Cov ntaub ntawv tseem ceeb: Kev teeb tsa tsis raug rau 68% ntawm tag nrho cov kev ua tsis tiav, nrog 42% ntawm cov no tshwm sim los ntawm qhov tsis sib xws bolt preload.

 

II. Precise Sealing System Xaiv: Matching Media thiab Kub

Cov lus: Sealing Cheebtsam	Khoom siv pom zoo	Siv tau ib puag ncig	Kev Txhim Kho Lub Neej
Flange Gasket	Saj zawg zog Graphite / kauv qhov txhab Gasket	Kub kub (tsawg dua lossis sib npaug li 600 degree), Muaj zog Corrosion	3-5 zaug ntev dua li roj hmab
Junction Box Foob	Silicone Rubber (VMQ) los yog Fluororubber (FKM)	Moisture, Roj, -40℃~ 200 degree	Kev laus tiv thaiv 50% zoo dua li cov roj hmab nitrile
Kev Tiv Thaiv Tube Txheej	Integral Sintered PTFE	Muaj Cl⁻, H₂S, Acid thiab Alkali Media	Corrosion kuj nce mus txog 904L stainless hlau qib

Cov Khoom Siv Txwv: Tsis txhob siv cov khoom siv asbestos, lub nplhaib roj hmab zoo tib yam, thiab 304 stainless hlau tiv thaiv cov raj (hauv thaj chaw chloride ion).

 

III. Txhim khu kev tiv thaiv ib puag ncig: Thaiv cov dej noo thiab Corrosion Pathways

Los nag Cover thiab Desiccant Box Installation: Rau kev teeb tsa sab nraum zoov, nruab ib lub hau stainless hlau los nag rau saum lub thawv sib txuas, tso xim - hloov silica gel desiccant sab hauv, uas yuav tsum tau hloov peb lub hlis twg.

Sealing Test: Tom qab kev teeb tsa, siv cov xab npum xau dej los yog lub helium mass spectrometer leak detector kom ntseeg tau tias IP65 lossis siab dua kev tiv thaiv.

Kev Tiv Thaiv Kev Txhim Kho Kev Txhim Kho: Hauv tshuaj lom neeg, dej hiav txwv desalination, thiab lwm yam kev siv zoo sib xws, ua ntej siv 904L alloy tiv thaiv cov kav dej nrog PTFE sintered txheej txheej, txhim kho pitting corrosion kuj ntau dua 8 zaug. IV. Tsim kom muaj Kev Tshawb Fawb Txog Kev Txhim Kho Mechanism

Table Maintenance Item Frequency Tools Txais Cov Cai

Rwb thaiv tsev Resistance Test Txhua 6 Lub Hlis 500V Megohmmeter Ntau dua lossis sib npaug rau 100MΩ (Ceeb Toom:<10MΩ)

Bolt Torque Verification Txhua 12 Lub Hlis Torque Wrench Deviation Tsawg dua lossis sib npaug rau ± 10% ntawm Tus Nqi Pib

Cov tsos mob thiab kev tshuaj ntsuam xyuas txhua hli Visual Visual Inspection + Infrared Thermal Imager Tsis muaj xeb, tsis muaj dej stains, tsis muaj qhov txawv ntawm qhov kub thiab txias

Resistance Value Calibration Txhua 24 Lub Hlis Standard Platinum Resistance Calibration Rauv Deviation Tsawg dua lossis sib npaug rau ± 0.1Ω (ntawm 20 degree)

Lub hauv paus ntsiab lus: 70% ntawm kev ua tsis tiav tuaj yeem zam dhau los ntawm kev tshawb pom ntxov. Nws raug nquahu kom tsim cov ntaub ntawv kho hluav taws xob, sau txhua cov ntaub ntawv tshuaj xyuas, thiab cov phiaj xwm nkhaus kom ua tiav qhov kev hloov pauv ntawm kev hloov pauv mus rau kev ceeb toom ntxov.

Txoj cai tiv thaiv qhov kawg:

"Alignment Installation + Sealing Matching + Lead Redundancy + Regular Inspection" - qhov plaub no - hauv - ib txoj hauv kev yog tib txoj kev txhim khu kev qha rau txuas lub neej ntawm flange platinum tiv thaiv tus pas ntsuas kub.

Yog tsis muaj kev vam khom rau "siab- tus nqi sensors," nws tuaj yeem ua tiav kev ua haujlwm ruaj khov rau ntau tshaj 8 xyoo tsuas yog ua raws li cov txheej txheem txheem thiab kev saib xyuas kev tshawb fawb.