Cov kav dej tshuaj thiab cov li qub yog ib feem tseem ceeb ntawm kev tsim tshuaj thiab yog qhov txuas ntawm ntau hom khoom siv tshuaj. 5 lub li qub feem ntau hauv cov kav dej tshuaj ua haujlwm li cas? Lub hom phiaj tseem ceeb? Cov kav dej tshuaj thiab cov khoom siv sib txuas yog dab tsi? (11 hom yeeb nkab + 4 hom khoom sib txuas + 11 lub li qub) cov kav dej tshuaj no, nkag siab tag nrho!
Cov kav dej thiab cov khoom siv rau kev lag luam tshuaj lom neeg
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11 hom yeeb nkab tshuaj
Hom yeeb nkab tshuaj los ntawm cov khoom siv: yeeb nkab hlau thiab yeeb nkab tsis yog hlau
MetalPipe
Yeeb nkab hlau cam khwb cia, yeeb nkab hlau sib txuas, yeeb nkab hlau tsis sib txuas, yeeb nkab tooj liab, yeeb nkab txhuas, yeeb nkab txhuas.
①Cov yeeb nkab hlau cam khwb cia:
Cov yeeb nkab hlau cam khwb cia yog ib qho ntawm cov yeeb nkab siv feem ntau hauv cov kav dej tshuaj lom neeg.
Vim yog qhov tsis yooj yim tawg thiab tsis ruaj khov ntawm kev sib txuas, nws tsuas yog siv rau kev xa cov khoom siv siab qis xwb, thiab tsis siv rau kev xa cov pa kub thiab siab thiab cov tshuaj lom, cov khoom tawg. Feem ntau siv rau hauv cov kav dej hauv av, cov roj loj thiab cov kav dej phwj. Cov lus qhia ntawm cov kav dej hlau cam khwb cia rau Ф sab hauv txoj kab uas hla × phab ntsa tuab (hli).
② cov yeeb nkab hlau sib txuas:
Cov yeeb nkab hlau sib txuas raws li kev siv cov ntsiab lus siab ntawm cov yeeb nkab dej thiab roj ib txwm muaj (siab 0.1 ~ 1.0MPa) thiab cov yeeb nkab tuab (siab 1.0 ~ 0.5MPa).
Feem ntau lawv siv los thauj dej, roj, cua sov, cua compressed, roj thiab lwm yam kua siab. Galvanized hu ua yeeb nkab hlau dawb lossis yeeb nkab galvanized. Cov uas tsis galvanized hu ua yeeb nkab hlau dub. Nws cov lus qhia yog qhia hauv txoj kab uas hla nominal. Yam tsawg kawg nkaus txoj kab uas hla nominal yog 6 hli, qhov siab tshaj plaws txoj kab uas hla nominal yog 150 hli.
③ Cov yeeb nkab hlau tsis muaj qhov sib txuas:
Cov yeeb nkab hlau tsis muaj qhov sib xws muaj qhov zoo ntawm kev sib xws thiab lub zog siab.
Nws cov khoom siv muaj cov hlau carbon, cov hlau zoo, cov hlau tsis tshua muaj hlau, cov hlau tsis xeb, cov hlau tiv taus cua sov. Vim muaj ntau txoj kev tsim khoom sib txawv, nws muab faib ua ob hom yeeb nkab kub dov seamless thiab cov yeeb nkab txias rub seamless. Cov yeeb nkab engineering pipeline txoj kab uas hla ntau dua 57 hli, feem ntau siv cov yeeb nkab kub dov, 57 hli qis dua cov yeeb nkab txias rub.
Cov yeeb nkab hlau tsis muaj qhov sib txuas feem ntau siv los thauj ntau yam roj, pa thiab kua uas muaj siab, tuaj yeem tiv taus qhov kub siab dua (kwv yees li 435 ℃). Cov yeeb nkab hlau sib txuas yog siv los thauj cov khoom siv corrosive, uas cov yeeb nkab hlau tsis muaj qhov kub thiab txias tuaj yeem tiv taus qhov kub txog li 900-950 ℃. Cov lus qhia ntawm cov yeeb nkab hlau tsis muaj qhov sib txuas yog Ф sab hauv txoj kab uas hla × phab ntsa tuab (mm).
Qhov siab tshaj plaws sab nraud ntawm cov yeeb nkab txias-kos yog 200 hli, thiab qhov siab tshaj plaws sab nraud ntawm cov yeeb nkab kub-kuav yog 630 hli. Cov yeeb nkab hlau tsis muaj seamless yog muab faib ua cov yeeb nkab seamless dav dav thiab cov yeeb nkab seamless tshwj xeeb raws li nws siv, xws li cov yeeb nkab seamless rau roj av tawg, cov yeeb nkab seamless rau boiler, cov yeeb nkab seamless rau chiv thiab lwm yam.
④Tooj liab raj:
Lub raj tooj liab muaj cov nyhuv hloov pauv cua sov zoo.
Feem ntau siv rau hauv cov khoom siv pauv cua sov thiab cov kav dej txias tob, cov raj ntsuas siab lossis cov kua dej uas muaj siab, tab sis qhov kub siab tshaj 250 ℃, yuav tsum tsis txhob siv rau hauv qab siab. Vim tias kim dua, feem ntau siv rau hauv cov chaw tseem ceeb.
⑤ Lub raj txhuas:
Aluminium muaj kev tiv thaiv corrosion zoo.
Cov raj xa dej txhuas feem ntau siv los thauj cov kua qaub sulfuric acid, acetic acid, hydrogen sulfide thiab carbon dioxide thiab lwm yam xov xwm, thiab kuj siv rau hauv cov khoom sib pauv cua sov. Cov raj xa dej txhuas tsis tiv taus alkali thiab tsis tuaj yeem siv los thauj cov kua qaub alkali thiab cov kua uas muaj chloride ions.
Vim yog lub zog kho tshuab ntawm cov raj xa dej txhuas nrog rau qhov kub nce thiab kev siv cov raj xa dej txhuas txo qis, yog li kev siv cov raj xa dej txhuas tsis tuaj yeem tshaj 200 ℃, rau cov kav dej siab, kev siv kub yuav qis dua. Cov txhuas muaj cov khoom siv kho tshuab zoo dua ntawm qhov kub qis, yog li cov raj xa dej txhuas thiab cov raj xa dej txhuas feem ntau siv rau hauv cov khoom siv sib cais cua.
(6) Cov yeeb nkab txhuas:
Cov yeeb nkab txhuas feem ntau siv ua cov kav dej rau kev xa cov kua qaub, tuaj yeem thauj tau 0.5% txog 15% ntawm cov kua qaub sulfuric, carbon dioxide, 60% ntawm cov kua qaub hydrofluoric thiab cov kua qaub acetic uas muaj tsawg dua 80% ntawm cov kua nruab nrab, yuav tsum tsis txhob thauj mus rau cov kua qaub nitric, kua qaub hypochlorous thiab lwm yam. Qhov kub siab tshaj plaws ntawm cov yeeb nkab txhuas yog 200 ℃.
Cov raj tsis yog hlau
Yeeb nkab yas, yeeb nkab yas, yeeb nkab iav, yeeb nkab ceramic, yeeb nkab cement.
①Yas yeeb nkab:
Qhov zoo ntawm cov yeeb nkab yas yog qhov zoo tiv taus corrosion, lub teeb yuag, yooj yim molding, yooj yim ua.
Cov qhov tsis zoo yog lub zog qis thiab tsis kam kub.
Tam sim no cov yeeb nkab yas feem ntau siv yog cov yeeb nkab polyvinyl chloride tawv, cov yeeb nkab polyvinyl chloride mos, cov yeeb nkab polyethylene, cov yeeb nkab polypropylene, thiab cov yeeb nkab hlau uas txau polyethylene, polytrifluoroethylene thiab lwm yam.
② cov yeeb nkab roj hmab:
Cov roj hmab hose muaj kev tiv thaiv corrosion zoo, lub teeb yuag, zoo plasticity, installation, disassembly, saj zawg zog thiab yooj yim.
Cov roj hmab hose feem ntau yog ua los ntawm roj hmab ntuj lossis roj hmab hluavtaws, tsim rau cov sijhawm uas muaj qhov xav tau siab tsawg.
③ Lub raj iav:
Lub raj iav muaj qhov zoo ntawm kev tiv thaiv corrosion, pob tshab, yooj yim los ntxuav, tsis tshua muaj kev tiv thaiv, tus nqi qis, thiab lwm yam., Qhov tsis zoo yog brittle, tsis muaj siab.
Feem ntau siv rau hauv kev sim lossis chaw ua haujlwm sim.
④ lub raj xa dej:
Cov tshuaj lom neeg ceramics thiab iav zoo sib xws, zoo tiv taus corrosion, ntxiv rau hydrofluoric acid, fluorosilicic acid thiab alkali muaj zog, tuaj yeem tiv taus ntau yam kev sib xyaw ntawm inorganic acids, organic acids thiab organic solvents.
Vim yog lub zog qis, brittle, feem ntau yog siv los tshem tawm cov corrosive media phwj thiab cov kav dej cua.
⑤ Cov yeeb nkab cement:
Feem ntau siv rau qhov yuav tsum tau ua kom siab, siv lub foob tsis yog lub sijhawm siab, xws li cov dej phwj hauv av, cov yeeb nkab dej thiab lwm yam.
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4 Hom Khoom Siv
Ntxiv rau cov yeeb nkab hauv cov kav dej, txhawm rau kom tau raws li qhov xav tau ntawm cov txheej txheem tsim khoom thiab kev teeb tsa thiab kev saib xyuas, muaj ntau lwm yam khoom hauv cov kav dej, xws li cov raj luv luv, lub luj tshib, tees, reducers, flanges, blinds thiab lwm yam.
Feem ntau peb hu cov khoom no rau cov khoom siv kav dej hu ua cov khoom sib txuas. Cov khoom siv kav dej yog cov khoom tseem ceeb ntawm cov kav dej. Nov yog kev qhia luv luv txog ntau yam khoom siv uas siv ntau.
① Lub luj tshib
Lub luj tshib feem ntau yog siv los hloov qhov kev taw qhia ntawm cov kav dej, raws li qib khoov ntawm lub luj tshib ntawm ntau pawg sib txawv, feem ntau yog 90 °, 45 °, 180 °, 360 ° luj tshib. 180 °, 360 ° luj tshib, tseem hu ua "U" zoo li khoov.
Kuj tseem muaj cov txheej txheem kav dej xav tau lub kaum sab xis tshwj xeeb. Cov luj tshib tuaj yeem siv rau kev khoov yeeb nkab ncaj lossis vuam yeeb nkab thiab muaj, kuj tuaj yeem siv tom qab molding thiab vuam, lossis casting thiab forging thiab lwm txoj hauv kev, xws li hauv cov kav dej siab siab, cov luj tshib feem ntau yog cov hlau carbon zoo lossis cov hlau alloy forging thiab dhau los ua.
② Tee
Thaum ob lub raj xa dej txuas nrog ib leeg lossis xav tau kev bypass shunt, qhov sib txuas ntawm qhov sib koom ua ke hu ua tee.
Raws li cov kaum sib txawv ntawm kev nkag mus rau hauv cov yeeb nkab, muaj kev nkag mus rau ntsug rau qhov txuas zoo tee, kev sib txuas kab pheeb ces kaum tee. Slanting tee raws li lub kaum ntawm slanting los teeb lub npe, xws li 45 ° slanting tee thiab lwm yam.
Ntxiv rau, raws li qhov loj ntawm qhov nkag thiab qhov tawm, xws li lub tee sib npaug. Ntxiv rau cov tee fittings feem ntau, tab sis feem ntau nrog tus lej ntawm cov interfaces hu ua, piv txwv li, plaub, tsib, diagonal kev sib txuas tee. Cov tee fittings feem ntau, ntxiv rau cov yeeb nkab vuam, muaj molded pawg vuam, casting thiab forging.
③Nipple thiab reducer
Thaum lub raj xa dej sib dhos hauv qhov tsis txaus ntawm ib feem me me, lossis vim muaj kev xav tau txij nkawm hauv cov raj xa dej los teeb tsa ib feem me me ntawm cov yeeb nkab tshem tau, feem ntau siv lub Nipple.
Lub txiv mis noj nrog cov khoom sib txuas (xws li flange, ntsia hlau, thiab lwm yam), lossis tsuas yog ib lub raj luv luv, tseem hu ua lub yeeb nkab gasket.
Yuav muaj ob lub yeeb nkab uas tsis sib npaug ntawm lub qhov ncauj txuas nrog cov yeeb nkab fittings hu ua reducer. Feem ntau hu ua lub taub hau loj. Cov fittings no muaj casting reducer, tab sis kuj nrog cov yeeb nkab txiav thiab welded lossis welded nrog cov hlau phaj dov rau hauv. Reducers hauv cov kav dej siab siab yog ua los ntawm kev forgings lossis shrunken los ntawm cov yeeb nkab siab siab seamless steel.
④Flanges thiab cov ntaub thaiv qhov muag
Yuav kom yooj yim rau kev teeb tsa thiab kev txij nkawm, cov kav dej feem ntau siv rau hauv qhov txuas uas tshem tau, flange yog ib qho khoom siv sib txuas uas siv ntau.
Yuav kom ntxuav thiab tshuaj xyuas tau, yuav tsum muaj ib daim ntaub thaiv qhov muag tsis pom lossis ib daim ntaub thaiv qhov muag tsis pom uas muab tso rau ntawm qhov kawg ntawm cov kav dej. Daim ntaub thaiv qhov muag tsis pom kuj siv tau los kaw ib ntus ntawm cov kav dej kom tsis txhob muaj kev sib txuas nrog lub kaw lus.
Feem ntau, cov kav dej uas tsis muaj zog, cov duab ntawm cov dig muag thiab cov flange khov kho zoo ib yam, yog li cov dig muag no kuj hu ua flange cover, cov dig muag no nrog tib lub flange tau raug standardized, qhov loj me tshwj xeeb tuaj yeem pom hauv cov phau ntawv qhia.
Tsis tas li ntawd xwb, hauv cov khoom siv tshuaj lom neeg thiab kev saib xyuas cov kav dej, txhawm rau kom muaj kev nyab xeeb, feem ntau ua los ntawm cov hlau phaj ntxig ntawm ob lub flanges ntawm cov discs khov kho, siv los cais cov khoom siv lossis cov kav dej thiab cov kab ke tsim khoom ib ntus. Cov dig muag no feem ntau hu ua qhov dig muag ntxig. Qhov ntxig qhov loj ntawm qhov dig muag tuaj yeem ntxig rau hauv qhov flange sealing nto ntawm tib lub cheeb.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-01-2023