Yuav ua li cas kom tshem tawm thiab khawb ib lub PTFE Thaum tshav kub kub Exchanger thaum kawg ntawm lub neej

Hloov lub PTFE kub exchanger. Cov neeg coob pib unbolt flanges yam tsis tau kuaj xyuas thawj zaug tias cov kab muaj kev nyuaj siab. Ib lub dav hlau ntawm acid gushes tawm. Qhov zoo li no yog tiv thaiv tau kiag li thiab tu siab nws tshwm sim ntau tshaj qhov yuav tsum tau ua. Decommissioning yog tsis xws li mechanical chore. Nws yog kev tswj xyuas kev nyab xeeb nrog cov tshuaj seem, kev kaw cia siab, kev pheej hmoo ntawm kev nqa hnyav thiab cov khoom sib xyaw ua ke. Cov txheej txheem tsim nyog yog tsim nyog ua ntej txhua lub bolt yog twisted.

Vim li cas kev decommissioning yog ib qho kev pheej hmoo siab

Tsis zoo li kev saib xyuas zoo ib yam, qhov kawg - ntawm - kev tshem tawm lub neej nthuav tawm ntau yam kev phom sij sib tshooj. Exchanger yuav suav nrog cov txheej txheem seem uas raug kaw. Txawm tias "kev cais tawm" cov tshuab yuav muaj lub hnab ntim siab hauv cov ceg tuag lossis ib feem kaw li qub. Me me tab sis muaj teeb meem ntau ntawm cov kua qaub, caustics lossis cov kuab tshuaj tseem tuaj yeem tshwm sim raws li cov tshuaj seem.

Kev tuav PTFE qhov chaw tuaj yeem nyuaj. Cov khoom siv chemically resistant tab sis mechanically slippery, tshwj xeeb tshaj yog thaum ntub los yog polluted. Heavy steel shells thiab teeb meem rigging geometries zoo heev txhim kho txoj kev pheej hmoo ntawm cov khoom poob los yog kev txav tsis tau.

Yog li ntawd, decommissioning yuav tsum tau suav hais tias yog ib qho kev tswj xyuas engineering thiab tsis yog ib txoj haujlwm dismantling.

Kauj Ruam 1 - Xauv / Tagout (LOTO) thiab ua kom tiav kev sib cais

"Tag nrho cov kev sib koom ua ke tau raug kaw tag nrho thiab tag nrho tawm ua ntej . - Tag nrho cov txheej txheem thiab cov khoom siv hluav taws xob mus rau PTFE cov khoom siv hluav taws xob yuav tsum raug cais tawm zoo. Valves yuav tsum raug kaw, kaw thiab tagged ib qhov chaw ruaj ntseg raws tu qauv.

Piv txwv tias tag nrho cov kab nyob mus txog thaum muaj pov thawj lwm yam tseem ceeb heev. Txhua qhov chaw uas xav tau kev cais ob npaug, tshwj xeeb tshaj yog rau cov kev pabcuam tshuaj lom neeg. "Kev lees paub hauv chav tswj tsis txaus, koj xav tau kev cais tawm ntawm lub cev.

Kauj Ruam 2: De-pressurizing thiab Ntsuam Xyuas Zog

Tom qab kev sib cais, lub system yuav tsum tau tag nrho depressurised. Qhib lub qhov cua valve thiab ntws cov ntsiab lus maj mam txhawm rau txhawm rau txhawm rau txo qis qis. Cov theem no yuav tsum tau kuaj xyuas los ntawm kev ntsuas ntsuas ntsuas ntawm ob lub plhaub thiab lub raj sab.

Zero siab yuav tsum tau txheeb xyuas, tsis xav. Kev qhib ntawm flanges tuaj yeem ua rau muaj tshuaj lom neeg sai sai vim yog lub zog me me.

Kauj Ruam 3: Tshem tawm cov kua dej thiab tshem tawm cov seem

Tshem lub exchanger ntawm ob sab kom tiav. Cov dej ntws yuav tsum tau tswj hwm thiab sau rau hauv cov thawv pov tseg uas tau tso cai pov tseg.

Tshem tawm thiab tshem tawm. Nyob ntawm qhov kev pabcuam, cov kua dej uas seem yuav raug tshem tawm nrog dej lossis cov pa roj inert (xws li nitrogen). Cov txheej txheem no yuav pab tshem tawm cov pa phem hauv qhov chaw qis, qhov chaw tuag thiab qhov chaw sab hauv.

Tag nrho cov dej lim dej yuav tsum tau sau thiab kho raws li cov txheej txheem pov tseg thiab yuav tsum tsis txhob tso tawm.

Kauj Ruam 4. Kev ua kom tsis zoo ntawm cov seem txaus ntshai

Yog hais tias acids, caustics los yog reactive tshuaj tau nyob rau hauv exchanger ces neutralization yuav tsum tau muaj ua ntej mus ntxiv disassembly. Circulate los yog yaug ob sab ntawm lub exchanger nrog ib tug tshaj neutralizing tov.

Cov txheej txheem no txo ​​qhov kev pheej hmoo ntawm kev raug mob thaum kho tshuab thiab txiav. Kev ntxuav zaum kawg tom qab neutralization yog pom zoo kom tshem tawm cov tshuaj tiv thaiv byproducts. Lub sijhawm no tus exchanger yuav tsum suav tias muaj kev nyab xeeb dua tab sis tsis tas yuav huv.

Yog tias qhov kev pabcuam keeb kwm tsis muaj, lossis cov kev pabcuam muaj kev phom sij tshwj xeeb, xav tias txhua qhov chaw muaj kuab paug.

Kauj Ruam 5. Tswj Kev Txiav Txim ntawm Cov Yeeb Nkab

Loosen flange kev sib txuas hauv lub hnub qub lossis tus qauv ntoo khaub lig kom txo qis cov khoom siv tshuab. Zam tsis txhob txav nrawm ntawm cov kav dej txuas, txo qis kom muaj feem ntawm gasket snap-rov qab.

Txhua qhov chaw sib txuas yuav muaj cov lauj kaub thiab cov khoom nqus dej hauv qab no. Txawm tias tom qab tso dej los tseem tuaj yeem ua kua rau hauv qhov chaw qis lossis tom qab gaskets.

Tsis txhob tshem tag nrho cov bolts ntawm ib sab ua ntej loosening rau lwm sab. Nws yog ib qho tseem ceeb uas yuav tsum tau tso cov kev ntxhov siab hauv kev tswj hwm.

Kauj Ruam 6 Safe Lifting thiab Rigging

Yog tias tsis muaj kev sib txuas, lub exchanger yuav tsum tau hoisted nrog cov khoom nqa tsim nyog, xws li crane lossis hoist. Ib lub tswv yim rigging raug cai yuav tsum muaj nyob rau hauv qhov chaw loj lossis hnyav.

Mos slings ua los ntawm nylon los yog polyester yog pom zoo heev. Tsis txhob siv cov hlua hlau lossis cov hlua hlau uas ua tau raws li lawv tuaj yeem ua mob rau PTFE qhov chaw thiab ua rau muaj kev phom sij ntxiv.

Tsis txhob nqa lub exchanger los ntawm PTFE tubing los yog ilv sab hauv. Cov ntsiab lus nqa nqa yuav tsum tau kuaj xyuas thiab lees paub rau kev ua haujlwm.

Lub load stability xav tau kev saib xyuas tshwj xeeb; Kev faib tawm qhov hnyav tsis sib xws tuaj yeem ua rau PTFE- cov kab hauv kab hloov pauv hauv txoj kev npaj txhij txog.

Kauj Ruam 7: Thauj mus rau qhov chaw pov tseg pom zoo

Tom qab tshem tawm, ruaj lub exchanger rau kev thauj mus los ntawm ib lub pallet los yog nplooj siab thav duab. Kev txav mus los yuav tsum nyob nruab nrab thiab txhob txwm tshaj tawm kom tsis txhob hloov pauv thaum caij tsheb npav.

Lub chaw pov tseg yuav tsum raug xaiv ua ntej thiab qhov chaw ib puag ncig thiab kev nyab xeeb yuav tsum tau ua raws li . - Nyob ntawm cov khoom siv, lub tsev yuav raug hloov mus rau cov khoom siv hlau rov qab, kev tsim cov khib nyiab pov tseg lossis cov dej pov tseg tshwj xeeb polymer.

Rau cov neeg sib pauv loj siv cov kev pabcuam crane yuav tsum tau siv kom tsis txhob muaj kev pheej hmoo ntawm kev tuav lub cev.

Daim ntawv txheeb xyuas kev nyab xeeb ua ntej tshem tawm

Cov xwm txheej hauv qab no yuav tsum tau lees paub ua ntej kev tshem tawm lub cev:

Tag nrho xauv tawm / tag tawm ntawm tag nrho cov txheej txheem & cov khoom siv hluav taws xob
Zero siab paub tseeb ntawm ob lub plhaub thiab lub raj sab
Kev sau cov khoom pov tseg kom raug thiab tso kua dej puv nkaus
Flushing ua tiav nrog dej los yog inert gas raws li xav tau
Neutralization ntawm cov pov tseg uas tsim kev puas tsuaj tau ua, yog tias muaj
PPE nyob rau hauv qhov chaw muaj xws li tshuaj tiv thaiv khaub ncaws, hnab looj tes thiab daim npog ntsej muag
Cov khoom siv pov tseg cov khoom siv hauv chaw ua haujlwm "
Kev tshuaj xyuas cov cuab yeej ua tiav thiab nqa txoj kev npaj tau pom zoo
Cov neeg ua haujlwm hauv teb chaws tham mus tswj chav.

Kev tshem tawm yuav tsis tshwm sim qhov twg ib yam khoom tsis tau lees paub.

Cov lus ceeb toom tseem ceeb ntawm kev nyab xeeb

Qee qhov kev coj ua yuav tsum zam ntawm txhua tus nqi. Tsis txhob txiav los yog hlawv PTFE nrog lub teeb vim tias thermal disintegration tuaj yeem tsim cov pa phem. Tsis txhob siv hlau slings rau hoisting uas yuav plam los yog mar nto. Kev tuav ntawm cov khoom sib hloov yuav tsum tsis txhob ua los ntawm cov raj sab hauv lossis cov khoom tawg yooj yim.

Txhua qhov chaw ntawm lub exchanger yuav tsum tau xav tias yuav kis tau mus txog thaum muaj pov thawj sib txawv los ntawm kev ntxuav thiab kuaj yog tias tus exchanger tau nyob rau hauv cov kev pab cuam tshuaj lom.

Xaus Kev Xav

Decommissioning ib tug PTFE tshav kub exchanger tsis tsuas yog qhov opposite ntawm installation; nws yog cov txheej txheem kev sib cais nrog nws tus kheej txaus ntshai thiab tswj kev ntsuas. Kev qhuab ntuas ntawm txhua kauj ruam yog qhov tsim nyog los cuam tshuam nrog kev ntxhov siab, tshuaj lom neeg seem thiab kev phom sij hnyav hnyav.

Cov txheej txheem tshem tawm uas tau hais tseg tiv thaiv kev raug mob, ib puag ncig emissions thiab khoom puas tsuaj. Yog tias ua raws li kev nruj tib yam li kev teeb tsa, qhov kawg - ntawm - kev tshem tawm lub neej dhau los ua cov txheej txheem tswj hwm, ua kom pom tau thiab muaj kev nyab xeeb es tsis yog qhov kev pheej hmoo siab - cuam tshuam.