Yuav ua li cas rau nruab ib flange -mounted thermocouple sojntsuam
Tso lus
Kev npaj ua ntej kev teeb tsa
Xyuas kom cov khoom flange specifications phim lub thermocouple flange, ua raws li ASME B16.5 los yog JB/T 8622 cov qauv, nrog rau cov nominal siab (PN) thiab ntsuas kub.
Tshawb xyuas qhov flange sealing nto: Nws yuav tsum tsis muaj khawb, roj stains, thiab corrosion. Lub ntsej muag lossis tus nplaig- thiab - zawj qhov chaw yuav tsum tiaj tus. Cov flanges raug txwv.
Xaiv cov khoom siv sib xws: Cov khoom siv hlau nplaum (316L + graphite saj zawg zog) yog siv rau kev siv kub thiab kev kub siab, hloov tau graphite gaskets rau ib puag ncig corrosive, thiab PTFE-coated gaskets kom tsis txhob muaj hlau paug (xws li, hauv kev lag luam tshuaj thiab semiconductor).
Kev teeb tsa thiab kev ua haujlwm
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Kauj ruam |
Kev ua haujlwm Standard |
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1. Centering thiab Alignment |
Flange kawg ntawm lub ntsej muag sib luag sib txawv Tsawg dua lossis sib npaug li 1.5‰ ntawm flange sab nraud txoj kab uas hla, thiab tus nqi tiag Tsawg dua lossis sib npaug li 2 hli; axis sib txawv Tsawg dua los yog sib npaug rau 1 degree |
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2. Gasket qhov chaw |
Muab lub gasket rau hauv nruab nrab ntawm lub sealing nto; tsis txhob txav los yog folding; Kev siv PTFE daim kab xev, silicone sealant, lossis cov roj hmab zoo tib yam yog txwv tsis pub. |
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3. Kev sojntsuam Insertion |
Qhov tob tob ntawm lub raj tiv thaiv ntau dua lossis sib npaug li 10-15 npaug ntawm txoj kab uas hla sab nraud, thiab tsis pub tsawg dua 75 hli hauv siab - cov kua dej siab; zam qhov kev sojntsuam kov cov yeeb nkab phab ntsa. |
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4. Bolt Tightening |
Siv ntau- kab pheeb ces kaum zawm txoj kev: - Thawj puag ncig: 10% ntawm lub hom phiaj torque - Qhov thib ob: 20% - Qhov thib peb: 60% - Plaub Ntug: 100% Siv lub torque wrench; pneumatic lossis phau ntawv brute quab yuam raug txwv. |
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5. Torque Reference tus nqi |
- DN100 PN16: 80–120 N·m - DN150 PN25: 120–180 N·m - DN200 PN40: 180–250 N·m |
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6. Kev taw qhia kev teeb tsa |
Vertical installation yog nyiam; rau kev teeb tsa kab rov tav, lub tshav kub- tiv thaiv kev txhawb nqa yuav tsum tau nruab los tiv thaiv cov raj tiv thaiv los ntawm sagging thiab deforming vim nws qhov hnyav. |
Kev kho cov kab mob khaub thuas thiab kab mob sib kis
Polarity kev twb kev txuas: Liab hlau tsis zoo (-), daj hlau yog zoo (+), rov qab kev twb kev txuas yog nruj me ntsis txwv tsis pub.
Siv K- hom tshwj xeeb them nyiaj xaim, nrog rau cov txheej thaiv thaiv av ntawm ib kawg (tswj lub txee sab).
Nthuav qhov chaw txias txias mus rau qhov kub thiab txias ntawm lub txee tswj (kub tsawg dua lossis sib npaug li 100 degree), thiab ua kom tsis siv neeg txias qhov sib txuas (AFC) ntawm qhov ntsuas.
Kev Tiv Thaiv Kev Tiv Thaiv thiab Kev Tiv Thaiv Tsis Ua Haujlwm
Tsis txhob yuam kev txhim kho yog tias lub flange tsis huv los yog lub sealing nto puas.
Tsis txhob zawm bolts ib sab lossis tsis yog- kab pheeb ces kaum, uas yuav ua rau flange distortion thiab to.
Tsis txhob siv flanges ua cov ntsiab lus nqa lossis nqa cov khoom siv sab nraud.
Do not insert the probe directly into a medium with a temperature >500℃thaum nws txias (thermal shock tuaj yeem ua rau lub raj tiv thaiv tawg).
Tsis txhob siv cov xov hlau uas tsis muaj kev tiv thaiv hauv thaj chaw muaj zog electromagnetic (kev cuam tshuam tuaj yeem ua yuam kev txog li ± 3 degree).
Kev txhim kho zoo ntawm qhov ruaj khov -flange mounted sojntsuam- hom thermocouples ncaj qha txiav txim siab qhov kev ntseeg siab ntawm qhov ntsuas kub thiab kev nyab xeeb ntawm lub cev. Kev nruj nruj raws li cov txheej txheem saum toj no ua kom xoom xoom, qhov raug siab, thiab lub neej ua haujlwm ntev, ua rau nws qhov kev ntseeg siab tshaj plaws hauv kev ua haujlwm siab - siab, loj - txoj kab uas hla, thiab cov tshuab ua haujlwm tas mus li.
