Kev sib txuas ntawm cov kav dej HDPE nrog cov yeeb nkab hlau: nta, cov lus pom zoo thiab kev tshuaj xyuas

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Thaum muaj ntau yam dej thiab cov khoom siv cua sov, nws tsim nyog los txuas cov kav hlau nrog cov yas. Txhawm rau daws qhov teeb meem no, koj tuaj yeem siv ib qho ntawm ntau txoj kev xaiv, tab sis cov ntsiab lus tseem ceeb suav nrog kev siv flanges thiab threaded interface txoj kev.

hom kev sib txuas thiab lawv cov yam ntxwv

Yog tias koj txiav txim siab txuas HDPE kav rau cov kav hlau, ces nws yog ib qho tseem ceeb kom paub koj tus kheej nrog cov thev naus laus zis yooj yim rau kev ua haujlwm. Thaum threading hlau kav nrog HDPE ntawm me me txoj kab uas hla mus txog 40 mm, nws yog qhov zoo tshaj plaws los siv fittings uas muaj ib tug xov rau ib tug hlau yeeb nkab. Nyob rau tib lub sijhawm, couplings feem ntau siv rau cov hom phiaj no. Txawm li cas los xij, lawv tsis siv los txuas HDPE kav hlau. Tab sis rau articulation ntawm polypropylene ntsiab nrog ib leeg, lawv yog qhov zoo tshaj plaws haum. Txhawm rau ua qhov no, yuav cov khoom sib txuas du. Txhawm rau kom tau txais lub foob zoopob qij txha, koj yuav tsum siv flax fiber, uas yog pre-processed nyob rau hauv qhuav roj. Qhov no muaj tseeb thaum assembling steel kav. Yog tias peb tab tom tham txog kev sib txuas ntawm flange, qhov twg cov kav dej ntawm txoj kab uas hla loj dua siv, ces cov khoom uas muaj txoj kab uas hla mus txog 600 mm tuaj yeem sib xyaw. Hauv qhov no, twisting yog nqa tawm manually. Hauv qab no peb yuav xav txog kev sib txuas ntawm cov kav dej polypropylene raws li txoj kev siv xov. Thaum lub flange sib koom yog zoo tshaj plaws siv nyob rau hauv kev sib txuas nrog polypropylene thiab polyethylene kav. Tab sis nws tsim nyog sau cia tias cov tshuaj no tuaj yeem siv rau ob hom khoom.

Daim ntawv thov ntawm threaded fittings

txhawm rau txhim kho cov kav dej polypropylene, uas muaj cov khoom hlau hauv daim ntawv lim, kav dej, ntsuas thiab cov khoom sib xyaw, koj tuaj yeem siv cov khoom siv nrog cov xov ntawm txoj kab uas xav tau. Cov khoom no yuav nyob rau ntawm ib sab, thaum nyob rau lwm qhov yuav tsum muaj kev sib txuas rau cov yeeb nkab yas. Xov rau fittings tuaj yeem yog sab nraud lossis sab hauv. Kev sib txuas ntawm HDPE kav nrog fittings yog ua raws li cov hauv qab no. Ua ntej koj yuav tsum tau unscrew cov hlau yeeb nkab coupling nyob rau hauv qhov chaw uas nws yuav tsum tau kev cob cog rua rau cov khoom yas. Txwv tsis pub, ib feem ntawm cov yeeb nkab steel tuaj yeem raug txiav tawm, thaum lub txiaj ntsig ntawm ntug yuav tsum tau kho nrog roj lossis roj, tsim cov xov tshiab nrog cov cuab yeej tsim nyog. Nyob rau theem tom ntej, cov xov yog wiped, fum daim kab xev los yog cab yog qhov txhab ntawm nws, nto yog lubricated nrog silicone. Vitkovyuav tsum tsis txhob ntau tshaj ob, ntug ntawm daim kab xev thaum clamping yuav tsum tau qhia raws cov xov. Tsis siv tus ciaj ntswj, ntsia hlau xovxwm kom tsis txhob tawg. Yog tias, tom qab pib lub kaw lus, cov dej pib ntws, ces qhov haum yuav tsum nruj.

Txoj Kev Ua Haujlwm

Thaum kev sib txuas ntawm HDPE yeeb nkab yog tsim, cov khoom hlau tuaj yeem sib xyaw nrog qhov haum. Polypropylene cov ntsiab lus yuav tso cai rau koj los tsim kev sib txawv khoov thiab lem hauv qhov system. Kev teeb tsa ntawm qhov haum tuaj yeem hloov pauv, rau qhov no nws yog ib qho tsim nyog kom sov nws nrog lub tsev plaub hau, txawm li cas los xij, qhov kub yuav tsum tsis pub tshaj 140 °. Polypropylene yuav kub hnyiab tau yog tias qhov kub siab tshaj 350 °, yog vim li cas koj yuav tsum tsis txhob tso cai rau overheating. Cov khoom siv polypropylene nthuav dav thiab cog lus thaum raug kub, yog li thaum siv lawv rau kev teeb tsa lub tshuab cua sov lossis muab dej kub, nws yog qhov tsim nyog los nruab cov kav dej hauv qab txheej ntawm plaster. Hauv qhov no, qhov sib txawv ntawm cov strobes yuav tsum yog kwv yees li ib centimeter, hos tubular rwb thaiv tsev yuav tsum nyob ib ncig ntawm lub tees thiab khoov.

Flange applications

Kev sib txuas ntawm HDPE, PVC kav nrog cov kav hlau tuaj yeem nqa tau los ntawm flanges. Nyob rau hauv cov ntaub ntawv no, nws yuav ua tau kom tau ib tug detachable kev twb kev txuas, uas flange bushings yog siv. Lawv yog welded mus rau qhov kawg ntawm cov khoom. Txwv tsis pub, overhead flanges, uas yog ua los ntawm hlau, tuaj yeem siv tau. Yog nyob rau hauvNyob rau hauv cov txheej txheem ntawm kev ua hauj lwm, koj yuav siv ib tug HDPE yeeb nkab, txoj kev ntawm kev sib txuas cov khoom no nrog hlau kav tej zaum yuav koom nrog kev siv flanges. Cov tshuab no siv tau yog tias cov yeeb nkab muaj cov khoom siv hlau (valve, twj tso kua mis tuaj yeem suav nrog hauv pawg no). Ntawm lwm yam, ib qho kev sib txuas uas tsis tuaj yeem cuam tshuam yog cuam tshuam thaum muaj qhov xav tau disassemble lub raj xa dej thaum ua haujlwm. Qhov kev xav tau no tshwm sim thaum kho thiab tu. Flange kev twb kev txuas yog pom zoo siv rau cov kav dej ntawm txoj kab uas hla loj. Ntawm kev muag khoom koj tuaj yeem pom qhov hu ua dawb-hom flanges, lawv yog raws li cov dab tshos thiab feem ntau yog thaum ua haujlwm nrog cov kav dej yas. Loose flanges tuaj yeem phim qhov ntev ntawm cov hlau ntawm cov kav dej.

rau kev siv

Thaum cov kav dej HDPE txuas nrog cov hlau siv flanges, nws yuav tsum tau muab sau tseg tias tom kawg yuav tsum tsis muaj burrs thiab cov ntsiab lus ntse. Yog tias tam sim no, cov khoom siv polyethylene yuav puas.

Kev pom zoo los ntawm tus kws tshaj lij flange

Loose flanges tau piav qhia saum toj no, feem ntau yog siv rau cov khoom hnyav thiab nruab nrab ntawm cov khoom siv polyethylene, txoj kab uas hla tsis tshaj 150 hli. Ntawm lwm yam, xws li cov khoom sib txuas kuj tuaj yeem siv rau cov kav dej, thaum lawv txoj kab uas hla yuav tsum tsis pub tshaj 300 mm. Txhawm rau kom ua tiav qhov kev nce hauv lub zog ntawm kev sib txuas, koj tuaj yeem siv ncaj qhadab tshos nrog ib tug conical hloov. Loose flanges tuaj yeem siv los txuas cov kav dej nrog txoj kab uas hla ntau dua 200 hli. Cov kab txuas txuas, uas yog yam ntxwv ntawm curly flanges, tuaj yeem siv rau cov kav dej ntawm txhua txoj kab uas hla.

Cov lus pom zoo rau kev ua haujlwm nrog flanges

Thaum cov kav dej HDPE txuas nrog cov hlau uas siv flanges, cov yeeb nkab raug txiav tawm ntawm qhov sib txuas, thaum txiav yuav tsum ua kom ntau li ntau tau. Ib tug hlau flange yog muab tso rau ntawm cov yeeb nkab, ces ib tug roj hmab gasket. Nws yuav tsum tsis txhob tso cai rau protrude tshaj cov yeeb nkab txiav, tab sis qhov siab tshaj plaws ntawm qhov sib tshooj yog 10 hli. Lub flange yuav tsum raug thawb mus rau lub gasket, thiab tom qab ntawd txuas nrog bolts. Cov bolts yuav tsum tau nruj sib npaug zos, lub zog tsuas yog siv kom txog thaum koj hnov tsis kam. Thaum ua haujlwm, koj yuav tsum tau coj los ntawm cov lus qhia tshwj xeeb uas txuas nrog rau cov khoom siv.

Txoj kev txuas HDPE kav

Kev sib txuas ntawm cov kav dej HDPE kuj tau ua hauv lub neej txhua hnub ntau zaus. Txhawm rau tsim kom muaj kev sib txuas, koj tuaj yeem siv cov flanges, uas yog hom fastening tshaj plaws. Qhov no yog vim lub fact tias nyob rau hauv cov txheej txheem ntawm kev ua hauj lwm tsis muaj yuav tsum tau siv vuam. Nws yuav yog qhov yooj yim tshaj plaws los siv cov kav dej, cov kab uas hla ntawm qhov pib ntawm lub cim ntawm 50 mm. Yog hais tias peb tab tom tham txog ib txoj kab uas hla me me, ces fittings los yog clamps tshwj xeeb yuav tsum tau siv, uas tej zaum yuav hloov los ntawm clamps. Flanges tuaj yeem siv los txuas tooj liab, cam khwb cia hlau lossishlau kav nrog polyethylene. Txhawm rau txuas cov kav dej HDPE nrog compression fittings, nws yog ib qho tsim nyog los npaj cov kav dej kom raug. Ua li no, cov khoom yas yog txiav ntawm lub kaum sab xis. Nyob rau theem tom ntej, kev ua haujlwm yuav tsum tau ua raws li cov thev naus laus zis tau piav qhia saum toj no, txawm li cas los xij, nyob rau hauv rooj plaub no, ob lub kav dej yuav tig mus ua yas.

Txoj kev sib txuas cov kav dej los ntawm cov khoom sib txawv

Yog tias koj txiav txim siab txuas cov yeeb nkab HDPE rau cov yeeb nkab hlau, ces nws poob siab heev kom txuag nyiaj los ntawm kev sim kaw cov yeeb nkab yas nrog cov cement pob qij txha los yog embossing technology. Nyob rau hauv tas li ntawd, lub plasticity ntawm polyvinyl chloride los yog polyethylene yuav ua tsis tau tejyam, vim hais tias nws yuav tsis yooj yim sua kom ua tau ib tug nruj kev twb kev txuas. Tsis tas li ntawd, cov kav dej yog deformed. Nyob rau hauv lwm yam mob, ib tug yuav tsum nco ntsoov lub coefficient ntawm thermal expansion ntawm yas. Yog tias cov dej kub ntws tawm ntau zaus, qhov kev sib txuas yuav yooj yim loosen thiab poob nws qhov qub nruj. Yog tias yuav tsum tau txuas cov yeeb nkab HDPE rau cov yeeb nkab hlau, tab sis tsis tuaj yeem nrhiav tau lub sealant rau muag, ces qhov teeb meem tuaj yeem daws tau los ntawm kev siv cov roj hmab microporous. Los ntawm cov ntaub pua tsev qub, koj yuav tsum tau txiav ib daim kab xev nqaim ntev, uas tuaj yeem qhwv ib ncig ntawm qhov sib koom ua ke, tamping cov khoom siv sab hauv nrog cov ntsia hlau dav dav.