Yuav Ua Li Cas Tshawb Xyuas thiab Kho Cov Leak hauv PTFE Thaum tshav kub kub Exchanger (Cov txheej txheem dej sib xyaw nrog kev siv hluav taws xob)

Cov dej txias tso zis yog greasy thiab tsw ntxhiab acid. Cov txheej txheem dej yog nkag mus rau sab siv hluav taws xob. Qhov no yog ib qho instant tswb rau ib puag ncig engineer. Qhov no tsis yog qhov teeb meem kev ua tau zoo dua qub los yog qhov teeb meem kev saib xyuas ib ntus -- nws yog qhov tshwm sim ntawm kev sib kis nrog kev cuam tshuam ncaj qha rau ib puag ncig, kev nyab xeeb thiab kev tswj hwm. Lub hauv paus ntawm cov xau yuav tsum raug txheeb xyuas tam sim ntawd thiab kev hloov ntawm cov circuits nres.

Ib qho xau hauv PTFE cov khoom siv hluav taws xob yog qhov ncaj qha rupture ntawm ob lub tshuab cais. Kev kis kab mob tuaj yeem nthuav tawm sai sai los ntawm cov khoom siv hluav taws xob thaum cov kua dej sib xyaw, ua rau cov khoom siv hauv qab thiab tej zaum ua txhaum cov kev txwv. Lub hauv paus ntawm kev daws qhov teeb meem tsis yog xav txog tab sis cais thiab txheeb xyuas qhov systematically.

Kev txheeb xyuas cov cim ceeb toom ntxov

Kev sib kis tsis tshua muaj tshwm sim tawm ntawm xiav. Cov neeg ua haujlwm feem ntau yog thawj zaug pom kev hloov pauv ntawm qhov chaw siv hluav taws xob. Cov dej txias tuaj yeem tig daj lossis roj, thiab tuaj yeem hloov xim. Cov txheej txheem corrosive tuaj yeem ua rau muaj qhov txawv txav acidic tsw lossis qhov kev npaj txhij txog nce hauv cov khoom siv hluav taws xob. Cov no yog cov cim tseem ceeb uas cov txheej txheem cov kua dej nkag mus rau hauv qhov hluav taws xob hluav taws xob.

Kev coj cwj pwm siab kuj yog ib qho kev qhia tseem ceeb. Lub siab ruaj khov degradation ntawm ib sab ntawm lub exchanger, uas tsis muaj kev tawm sab nraud, feem ntau yog ib qho kev qhia ntawm kev hloov mus rau sab hauv ntawm circuits. Piv txwv li, qhov txo qis hauv raj- sab siab nrog rau qhov nce hauv lub plhaub- sab siab yog ib qho cim ntawm kev khiav mus los ntawm qhov tsis muaj zog.

Nyob rau hauv cov xwm txheej siab heev tej zaum yuav muaj corrosion khoom nyob rau hauv lub voj voog hluav taws xob. Cov xov xwm tsis zoo yog tias kev xau tsis tu ncua zoo li yog qhov teeb meem, tsis yog kev tawg tam sim ntawd. Thaum cov kab mob kis mus txog qib no, yuav tsum tau sib cais ceev kom tsis txhob muaj kev puas tsuaj loj -.

Qhov twg muaj feem yuav tshwm sim

Yuav luag tsis tshua muaj random leaks nyob rau hauv PTFE tshav kub exchangers. Lub hom phiaj yog nyob rau peb qhov tseem ceeb: gasketed flanges, raj - mus rau -tubesheet junctions, thiab PTFE hlab lawv tus kheej.

Gasket tsis ua hauj lwm yog nquag nyob rau hauv lub tshuab nrog cua sov cycling los yog tsis zoo torquing. Tube-rau-tubesheet junctions tuaj yeem ua tsis tiav vim kev nthuav dav sib txawv, tshuaj lom neeg los yog kev ntxhov siab. Cov hlab PTFE tawg tsis tshua muaj tab sis tuaj yeem tshwm sim los ntawm kev siv tsis raug, kev ntxhov siab dhau los lossis ntev - lub sij hawm qaug zog hauv cov tshuaj lom neeg.

Kev nkag siab txog qhov muaj peev xwm ua tsis tiav no yog pab tau rau ob qho tib si tshawb nrhiav thiab kho cov tswv yim.

Ib Kauj Ruam -los ntawm - Cov Txheej Txheem Txheej Txheem rau Kev Tshawb Nrhiav Leak

Thawj kauj ruam yog kiag li solitude. Lub tshav kub exchanger yuav tsum tau insulated los ntawm cov txheej txheem thiab cov khoom siv hluav taws xob. Kev rho tawm li qub ib leeg tsis zoo txaus qhov twg hla - xav tias muaj kev nkag mus. Kev sib cais zoo thiab kev sib cais ntawm lub cev yog nyiam. Tom qab ntawd ntws ob sab zoo. Yog tias muaj kev kis kab mob tseem ceeb, yuav tsum tau yaug dej ua ntej kuaj.

Tom qab kev sib cais, lub exchanger yog npaj rau kev sim siab. Ib sab, feem ntau lub raj sab, yog pressurized nrog cua tsis tshua muaj siab los yog inert gas, feem ntau nyob rau hauv qhov ntau ntawm 1-2 bar. Kev kub siab yog zam kom tsis txhob muaj kev puas tsuaj ntxiv rau cov khoom tsis zoo.

Lwm sab ces dhau los ua qhov chaw soj ntsuam. Nws yog dej puv yog ua tau. Nrog rau qhov kev npaj no, kev tshawb nrhiav pom tau yooj yim pom tau: npuas yuav tshwm sim ntawm qhov tsis ua haujlwm. Rau qhov loj dua los yog txhim kho qhov chaw uas tsis tuaj yeem siv tau, cov tshuaj xab npum tuaj yeem siv rau sab nraud rau qhov xav tias yuav xau.

npuas tsis dag. Ib qho txhaum me me yuav nthuav tawm nws tus kheej muab kev sim tsim nyog. Qhov tsis tu ncua ntawm cov npuas ntawm ib lub flange qhia tau hais tias qhov ua txhaum ntawm gasket. Yog hais tias koj pom npuas nyob ib ncig ntawm lub raj xa ntawv cheeb tsam, tej zaum nws yog ib lub raj - mus rau -tubesheet foob tawg. Yog tias koj pom cov npuas nyob rau hauv qhov kawg ntawm lub raj, lub PTFE raj yog tawg los yog muaj ib lub qhov.

Txhawm rau kom tau txais txiaj ntsig zoo dua, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem tseem ceeb lossis yog tias cov xau me me dhau los pom, tuaj yeem ua haujlwm helium leak detector. Kev ntsuam xyuas Helium yog qhov muaj txiaj ntsig ntau dua thiab yuav kuaj pom micro- cov pa tawm uas cov dej los yog xab npum kuaj yuav plam.

Kev txheeb xyuas qhov chaw ntawm qhov tsis ua tiav

Kev xaiv ntawm kev kho cov haujlwm yuav tsum muaj kev txheeb xyuas qhov tseeb ntawm lub hauv paus chiv keeb. Feem ntau cov ntaub ntawv ntawm flange leak yog qhov yooj yim tshaj plaws, feem ntau yog vim gasket tsis ua hauj lwm los yog tsis raug ntsia liaj qhov rooj loading. Lub raj -rau- cov ntawv xau yog qhov nyuaj dua, thiab feem ntau cuam tshuam nrog kev sib khi ruaj khov lossis kev ua haujlwm tsis zoo ntawm lub raj - mus rau - daim ntawv cuam tshuam.

Hom kev puas tsuaj loj tshaj plaws yog lub raj PTFE tawg. PTFE yog chemically robust tab sis mechanically rhiab heev rau kev ntxhov siab concentration, thiab cov kab nrib pleb feem ntau ua tiav yam tsis pom kev ceeb toom sab nrauv. Yog tias lub raj tawg, cov kua dej hauv sab hauv tam sim no ncaj qha thiab tsis tuaj yeem sib cais.

Kho thiab rov muaj peev xwm

Txoj kev kho kho tsuas yog nyob ntawm qhov chaw thiab qhov siv ntawm qhov xau.

Gasket leaks yog ib qho kev daws teeb meem yooj yim: hloov lub gasket thiab torque lub bolts mus rau txoj cai sib lawv liag thiab specification. Tsis sib xws nruj yog ib qho teeb meem tshwm sim vim li no yuav tsum tau tswj kom rov ua tau zoo.

Tube rau tubesheet kho yog me ntsis ntxiv tshwj xeeb. Qee lub sij hawm re-rolling los yog re- sealing tuaj yeem rov qab muaj kev ncaj ncees tab sis qhov no yog txoj haujlwm rau tus kws tshaj lij nrog cov cuab yeej zoo. Qhov tsuas yog lub sij hawm ntev kho yog hloov cov pob khoom thaum muaj kev puas tsuaj loj.

Muaj ob peb txoj hauv kev rau kev kho thaj chaw ntawm cov hlab PTFE tawg. Lub raj me me ntsaws yog qee zaum siv - PTFE plugs tuaj yeem muab tso rau ntawm qhov kawg ntawm ib lub raj cais. Tab sis qhov no txwv qhov chaw sib kis cua sov thiab tsuas yog yuav tsum tau ua thaum feem pua ​​me me ntawm cov hlab ntsha raug cuam tshuam. Feem ntau, yog tias ntau tshaj 5% ntawm cov hlab ntsha raug cuam tshuam, qhov kev kho zoo dua yog hloov cov pob.

Ib qho tseem ceeb tshaj plaws rau kev ntxhov siab yog qhov kev txwv loj: PTFE tubing tsis tuaj yeem ntseeg tau los yog sib koom ua ke hauv thaj chaw. Patching lossis bonding tawg PTFE yuav tsis tiv taus thermal thiab tshuaj lom neeg kev nyuaj siab. Cov kev hloov pauv no feem ntau yog hloov pauv thiab yuav tsum tsis txhob raug hu ua kev kho mob mus tas li.

Kaw qhov kev xav

Hla-kawg hauv PTFE lub tshuab hluav taws xob tsis yog qhov ua haujlwm tsis yooj yim, nws yog qhov tsis ua haujlwm uas yuav tsum tau saib xyuas sai. Qhov teeb meem tsuas yog loj hlob, kev pheej hmoo ntawm ib puag ncig, kev tsis ruaj khov, cov khoom siv degradation.

Kev sib cais ntawm cov khoom sib txawv, tswj kev ntsuas siab thiab ua tib zoo txhais cov qauv npuas lossis cov txiaj ntsig ntawm kev tshawb pom helium tuaj yeem txheeb xyuas qhov tseeb ntawm qhov xau. Thaum pom txoj kev kho kom raug, txawm tias hloov gaskets, kho cov ntsaws ruaj ruaj lossis hloov cov pob khoom, yog qhov pom tseeb.

Qhov sib txawv ntawm qhov muaj xwm txheej thiab qhov tsis ua haujlwm loj yog feem ntau yog qhov ceev thiab txoj hauv kev uas kuaj pom qhov xau. Kev txiav txim sai, raws li cov txheej txheem kev sim yooj yim tab sis ntseeg tau, ua kom cov txheej txheem muaj kev nyab xeeb thiab ntev - cov khoom siv ruaj khov.