Cov cuab yeej yooj yim tswj "kua dej"

Kev tswj xyuas kev nyab xeeb thiab kev tsim khoom muaj xws li roj to, dej to, chav dej, pa taws, pa taws to, tshauv to, thee to, hmoov to thiab gas to, uas yog qhov peb hu ua "khiav, emission, dripping thiab to". Niaj hnub no, peb nthuav qhia qee qhov kev tiv thaiv kev tiv thaiv ntawm "khiav, emitting, dripping thiab leaking" rau siv. Kuv tiv thaiv cov dej thiab cov pa tawm ntawm cov li qub. 1. Tag nrho cov li qub yuav tsum raug rau ntau theem ntawm kev ntsuas hydrostatic tom qab nkag mus rau hauv cov nroj tsuag. 2. Valves uas yuav tsum tau disassembled rau tu yuav tsum yog hauv av. 3. Nyob rau hauv tus txheej txheem ntawm kev txij nkawm, nws yuav tsum tau ua tib zoo xyuas seb lub packing yog ntxiv thiab seb lub packing caj pas yog nruj nreem. 4. Ua ntej kev teeb tsa lub valve, xyuas seb puas muaj plua plav, xuab zeb, hlau oxide thiab lwm yam khoom siv hauv lub valve. Yog hais tias muaj ib yam ntawm cov saum toj no sundries, lawv yuav tsum tau ntxuav ua ntej installation. 5. Tag nrho cov li qub yuav tsum tau nruab nrog gasket ntawm qib sib thooj ua ntej kev teeb tsa. 6. Thaum txhim kho lub qhov rooj flange, cov fasteners yuav tsum tau nruj. Thaum zawm lub flange bolts, lawv yuav tsum tau nruj nreem nyob rau hauv ib tug symmetrical kev taw qhia nyob rau hauv lem. 7. Nyob rau hauv tus txheej txheem ntawm lub valve installation, tag nrho cov li qub yuav tsum tau muab ntsia kom raug raws li qhov system thiab siab, thiab random thiab mix installation yog nruj me ntsis txwv tsis pub. Tag nrho cov li qub yuav tsum raug suav thiab sau tseg raws li qhov system ua ntej kev teeb tsa. II Kev ceev faj rau cov pa pulverized thee. 1. Tag nrho cov flanges yuav tsum tau nruab nrog cov ntaub ntawv sealing. 2. Cov cheeb tsam uas muaj cov hmoov xau yog cov thee valve ntawm qhov nkag thiab qhov hluav taws xob ntawm lub pulverizer, lub thee feeder, cov chaw tsim khoom flange, thiab txhua qhov chaw nrog flange txuas. Vim li no, txhua qhov chaw ntawm cov khoom siv ntawm txhua tus neeg tsim khoom uas txaus siab rau cov hmoov av yuav tsum tau soj ntsuam xyuas, thiab cov uas tsis muaj cov ntaub ntawv sib khi yuav tsum tau ntxiv ob zaug, thiab cov fasteners yuav tsum nruj. 3. Cov kev ntsuas hauv qab no yuav tsum tau ua rau kev xau ntawm cov thee pulverized ntawm qhov sib txuas welded ntawm pulverized thee yeeb nkab. 3.1 ua ntej welding, qhov vuam cheeb tsam yuav tsum tau ua tib zoo polished rau cov xim hlau luster thiab cov zawj yuav tsum tau rau vuam. 3.2 ua ntej pob tw, lub pob tw pob tw yuav tsum tau tshwj tseg thiab yuam pob tw pob tw yog nruj me ntsis txwv tsis pub. 3.3 vuam cov ntaub ntawv yuav tsum tau siv kom raug, thiab preheating yuav tsum tau ua raws li qhov yuav tsum tau nyob rau hauv cov huab cua txias. III Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv rau cov roj av thiab cov roj to. 1. Thaum lub sij hawm installation ntawm roj pipeline, tag nrho cov flange pob qij txha los yog union pob qij txha nrog cov ntsia hlau xov yuav tsum tau nruab nrog roj resistant roj hmab ncoo los yog roj resistant asbestos ncoo. 2. Cov ntsiab lus leakage ntawm cov roj system feem ntau yog tsom rau ntawm flange thiab kev sib koom ua ke nrog cov xov, yog li bolts yuav tsum tau nruj sib npaug thaum txhim kho flange. Tiv thaiv kom tsis txhob xoob lossis xoob. 3. Nyob rau hauv cov txheej txheem ntawm kev lim roj, cov neeg ua haujlwm saib xyuas yuav tsum tau ua tib zoo ua raws li cov lus qhia ua haujlwm, thiab nws yog txwv tsis pub tawm ntawm txoj haujlwm thiab hla tus ncej. 4. Nres cov roj lim ua ntej hloov cov ntawv lim roj. 5. Thaum txhim kho cov roj lim ib ntus txuas cov yeeb nkab (lub zog muaj zog yas pob tshab hose), qhov sib koom ua ke yuav tsum tau ua kom ruaj khov nrog cov hlau lead kom tiv thaiv cov roj tsis txhob dhia tawm tom qab cov roj lim tau khiav mus ntev. IV. tiv thaiv cov khoom siv thiab cov yeeb nkab fittings los ntawm foaming, emitting, dripping thiab to, nrog rau cov kev tiv thaiv nram qab no: Rau flange sealing gasket siab tshaj 1.2.5mpa, hlau winding gasket yuav tsum tau siv. 2.1.0mpa-2.5mpa flange gasket yuav tsum yog asbestos gasket thiab pleev xim rau cov hmoov txhuas dub. 3.1.0mpa dej pipeline flange gasket yuav tsum yog roj hmab gasket thiab pleev xim rau cov hmoov txhuas dub. 4. Lub ntim ntawm cov twj tso kua dej yuav tsum yog Teflon composite packing. 5. Cov hlua asbestos siv nyob rau hauv cov khoom sib khi ntawm cov pa luam yeeb thiab cov pa hluav taws xob cov kav dej yuav tsum tau twisted thiab ntxiv rau qhov sib koom ua ke kom zoo nyob rau ib zaug. Nws yog nruj me ntsis txwv tsis pub ntxiv nws forcefully tom qab zawm cov screws. V. Cov kev ntsuas hauv qab no yuav tsum tau ua kom tshem tawm cov dej ntws sab hauv ntawm lub valve: (cov kev ntsuas hauv qab no yuav tsum tau ua los tiv thaiv cov dej ntws tawm ntawm lub valve) 1. Txhim kho cov kav dej, ntxuav cov hlau oxide nplai thiab cov phab ntsa sab hauv ntawm cov kav dej. tsis muaj sundries, thiab xyuas kom meej tias cov phab ntsa sab hauv ntawm lub raj xa dej huv si. 2. Xyuas kom meej tias cov li qub uas nkag mus rau hauv qhov chaw yuav tsum raug kuaj 100% hydrostatic. 3. Tag nrho cov li qub (tshwj tsis yog lub valve inlet) yuav tsum tau disassembled rau kev soj ntsuam, sib tsoo thiab tu, thiab cov ntaub ntawv thiab cov cim yuav tsum tau ua rau traceability. Cov valve tseem ceeb yuav tsum tau teev nyob rau hauv kev nthuav dav rau qhov kev lees txais thib ob, kom ua tau raws li qhov yuav tsum tau ua ntawm "stamping, tshuaj xyuas thiab kaw". ❖ yog tias tsis tau, vim li cas? (1) kev sib cuag ntawm qhov qhib thiab kaw qhov chaw thiab ob qhov chaw sib khi ntawm lub rooj zaum valve; (2) txoj hauj lwm haum ntawm packing, qia thiab cov thawv ntim khoom; (3) kev sib txuas ntawm lub cev lub cev thiab lub kaus mom Lub qhov dej qub qub yog hu ua cov dej xau sab hauv, uas yog hais tias, lub valve tsis kaw nruj nreem, uas yuav cuam tshuam rau lub peev xwm ntawm lub valve txiav tawm qhov nruab nrab. Qhov kawg ob qhov xau yog hu ua leakage, uas yog, qhov nruab nrab xau los ntawm sab hauv mus rau sab nraud ntawm lub valve. Cov dej xau yuav ua rau cov khoom poob, ib puag ncig muaj kuab paug thiab txawm tias muaj xwm txheej.