Dab tsi yog Yeeb Nkab Dub
Cov yeeb nkab dub yog carbon steel yeeb nkab nrog tsaus, zeb - tiav nto thiab tsis muaj zinc txheej. Cov xim los ntawm oxide txheej tsim thaum kub dov thiab los ntawm cov kua roj vanish siv los tiv thaiv qhov chaw thaum lub sij hawm cia. Cov khoom yog ib txwm muab rau ASTM A53, Qib A lossis Qib B, lossis rau qhov sib npaug hauv lub tebchaws, thiab nws muaj nyob rau hauv seamless thiab welded daim ntawv nrog dawb, threaded lossis grooved kawg.
Qhov tsis muaj txheej txheej tseem ceeb. Cov yeeb nkab dub tiv taus kub zoo vim tias tsis muaj zinc txheej kom degrade, tab sis nws tsis muaj kev tiv thaiv kev tiv thaiv ntawm atmospheric noo noo, yog li nws yog siv nyob rau hauv tsev, nyob rau hauv qhuav qhov chaw thiab nyob rau hauv cov kev pab cuam uas muaj ib tug txheej los yog wrapping system tom qab siv.
Yuav Ua Li Cas Kub Dub Hlau Yeeb Nkab Tau Txais
Cov yeeb nkab dub tsis tsim kom muaj cua sov; nws qhov kub thiab txias ua raws li qhov kub ntawm qhov nruab nrab hauv nws. Hauv cov cua kub uas tsis tshua muaj cua sov qhov nruab nrab zaum ntawm kwv yees li 100 thiab 170 degrees Celsius. Nyob rau hauv cov txheej txheem chav faib cov kub nce nrog siab thiab tuaj yeem tshaj 300 degrees Celsius. Hauv cov dej kub cua sov qhov chaw nyob qis qis, feem ntau qis dua 90 degrees Celsius.
| Kev pabcuam | Qhov nruab nrab kub | Kev tiv thaiv neeg ua haujlwm |
| Cov cua kub hauv tsev | Hauv qab 90 degrees Celsius | Rwb thaiv tsev feem ntau xav tau rau kev ua haujlwm, tsis muaj kev nyab xeeb |
| Tsawg siab chav cua sov | Ci ntawm 100 txog 170 degrees Celsius | Rwb thaiv tsev thiab cov ntawv ceeb toom hauv qhov chaw nyob |
| txheej txheem chav | Mus txog thiab siab dua 300 degrees Celsius | Rwb thaiv tsev, tiv thaiv thiab tswj kev nkag |
| Roj faib roj | Ambient | Tsis muaj thermal txaus ntshai, kev tiv thaiv yuav tsum tau rau corrosion nkaus xwb |
Hlau yog ib tug kuj tsis zoo conductor ntawm tshav kub piv nrog tooj liab, yog li cov phab ntsa lags qhov nruab nrab thiab qhov kub thiab txias nyob ntawm tus nqi txaus, rwb thaiv tsev thiab ambient tej yam kev mob. Qhov ua tau zoo yog tias sab nraud ntawm cov yeeb nkab tuaj yeem kub txaus ua rau kub hnyiab, thiab feem ntau cov kev cai ntawm kev nyab xeeb kho txhua qhov chaw saum toj no txog 60 degrees Celsius raws li qhov kub hnyiab yuav tsum tau rwb thaiv tsev lossis tiv thaiv. Chav thiab condensate kab nyob rau hauv cov chaw siv tau yuav tsum tau insulated, thiab rwb thaiv tsev rau cov ntxhia wool specification kuj txo cov cua sov thiab tiv thaiv condensation ntawm qhov chaw txias.
Cov yeeb nkab dub hauv Kev Pabcuam Roj
Uncoated carbon steel yeeb nkab yog cov khoom siv ib txwm siv rau cov roj av thiab cov roj liquefied roj av faib rau sab hauv thiab sab nraud. Nws muaj zog, nws tiv taus hluav taws, nws tsis degrade nyob rau hauv ultraviolet lub teeb, thiab nws tuav lub siab ntawm cov pob qij txha los ntawm threads los yog vuam. Qhov twg yuav tsum tau muaj qib tshwj xeeb, ASTM A53 Qib B yog qhov kev xaiv ib txwm muaj, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 240 MPa thiab lub zog tensile yam tsawg kawg nkaus ntawm 415 MPa.
Kev teeb tsa yog tswj hwm los ntawm cov cai siv roj av, thiab cov kev cai uas feem ntau cuam tshuam rau kev xaiv cov khoom siv yog kev sib koom ua ke, kev txhawb nqa qhov sib txawv, kev tiv thaiv qhov twg cov yeeb nkab hla los ntawm masonry, thiab kev sib txuas rau hluav taws xob txuas ntxiv. Galvanized yeeb nkab feem ntau raug zam hauv kev pabcuam roj vim tias cov zinc txheej tuaj yeem flake thiab thaiv li qub lossis cov khoom siv hauv qab. Copper tubing tau tso cai rau cov roj ntuj hauv qee thaj chaw tab sis feem ntau txwv tsis pub cov roj av liquefied, yog li cov cai hauv zos yuav tsum tau sab laj ua ntej xaj.
Corrugated stainless hlau tubing thiab saj zawg zog connectors yog dav siv rau kev sib txuas zaum kawg rau cov khoom siv, qhov yooj yim yog qhov kev txiav txim siab ntau dua li lub zog. Rigid dub yeeb nkab tseem yog cov khoom siv rau kev faib khoom loj.
Vim li cas cov yeeb nkab dub tsis siv rau cov dej haus
Uncoated carbon steel corrodes sai sai nyob rau hauv tsis tu ncua ntub, oxygenated kev pab cuam. Nyob rau hauv ib tug potable dej kab qhov tshwm sim yog tuberculation, dej liab, saj tsis txaus siab thiab ib tug sai poob ntawm phab ntsa thickness, nrog leaks nram qab no nyob rau hauv ib tug luv luv kev pab cuam lub neej. Yog li ntawd, cov yeeb nkab dub yog cais tawm los ntawm cov dej siv tau.
Thaum cov hlau xav tau hauv kev pabcuam dej, cov kev xaiv yog qhov tseeb:
Kub-dip galvanized yeeb nkabmus rau ib qho kev lees paub galvanizing tus qauv, qhov twg zinc txheej muab kev tiv thaiv kev txi kom txog thaum nws tau noj.
Cement mortar lined steel yeeb nkab, dav siv rau txoj kab uas hla loj dej mains, nrog rau hauv ob sab phlu qhia cais los ntawm cov yeeb nkab lub cev.
Internal epoxy txheejthov mus rau lub moj tej tawg huv si nto thiab kho rau hauv ob sab phlu specification.
Tsis yog -ferrous lossis yas lwm yamxws li tooj liab, hla- txuas polyethylene lossis chlorinated polyvinyl chloride rau cov kab me me.
Tib txoj cai siv rau condensate thiab lwm yam dej - cov kab kabmob: yog tias cov yeeb nkab yuav ntub tsis tu ncua thiab tsis tuaj yeem qhuav, cov pa roj carbon steel tsis yog cov khoom siv tsis raug tshwj tsis yog cov khoom siv los yog coated tau teev tseg.
Rwb thaiv tsev, Labeling thiab tshuaj xyuas
Rau cov kev pabcuam kub, rwb thaiv tsev tuab yog xaiv los ntawm qhov yuav tsum tau muaj qhov kub thiab txias rau cov neeg ua haujlwm tiv thaiv thiab los ntawm qhov pom tau los ntawm cov cua sov rau lub cev. Qhov twg cov kav dej hla dhau ntawm qhov chaw nyob, rwb thaiv tsev yuav tsum txuas ntxiv nrog cov pob qij txha kaw, thiab cov ntsiab lus nkag xws li li qub thiab cov lim dej yuav tsum tau ntim cov thawv tsis yog sab laug. Cov chaw txhawb nqa, cov yeeb nkab nkag mus thiab cov kab hauv qab ntawm cov kab hluav taws xob yog cov chaw uas muaj corrosion nyob rau hauv rwb thaiv tsev, yog li cov ntsiab lus xav tau kev saib xyuas tshwj xeeb thaum kuaj. Rau kev pabcuam roj, kev tshuaj xyuas tsom mus rau kev sib koom ua ke, kev txhawb nqa thiab kev tiv thaiv lub cev tiv thaiv kev cuam tshuam.
FAQ
Q: Cov yeeb nkab dub puas tuaj yeem kub?
Yog lawm. Nws qhov kub thiab txias ua raws li qhov nruab nrab hauv nws, yog li chav dej thiab dej kub ua haujlwm ua rau cov yeeb nkab kub txaus ua rau kub hnyiab. Vim tias cov hlau ua cua sov kuj maj mam, phab ntsa kub lags tab sis tseem mus txog qhov nruab nrab kub hauv kev ua haujlwm tsis tu ncua.
Q: Cov yeeb nkab dub puas tuaj yeem siv rau roj?
Yog lawm. Uncoated carbon steel yeeb nkab, feem ntau yog rau ASTM A53 Qib B, yog cov khoom siv ib txwm siv rau cov roj av thiab cov roj liquefied roj av faib. Nws yuav tsum raug ntsia los ntawm tus tsim nyog installer raws li txoj cai tswj hwm roj roj.
Q: Puas yog cov yeeb nkab dub zoo ib yam li carbon steel yeeb nkab?
Cov yeeb nkab dub yog ib hom carbon steel yeeb nkab. Cov pa roj carbon steel yeeb nkab yog cov khoom dav dav, uas suav nrog galvanized, coated thiab lined khoom. Lub uncoated dub tiav yog cov variant ib txwm siv rau roj thiab rau qhuav, kub kev pab cuam.
Q: Cov yeeb nkab dub puas tuaj yeem nqa dej haus?
Tsis yog. Uncoated carbon steel corrodes sai heev nyob rau hauv tsis tu ncua ntub dej, oxygenated dej, ua xeb, discolored dej thiab thaum ntxov leaks. Cov kav dej uas siv tau yuav tsum tau galvanized yeeb nkab, cement mortar lined yeeb nkab, ib qho kev pom zoo hauv ob sab phlu, los yog cov khoom tsis yog -ferrous lossis yas.
Q: Vim li cas cov yeeb nkab galvanized tsis zam hauv cov pa roj?
Zinc txheej tuaj yeem flake los ntawm sab hauv lub sijhawm, thiab cov flakes tuaj yeem thaiv cov roj li qub thiab cov khoom siv hluav taws xob. Uncoated dub yeeb nkab zam qhov kev pheej hmoo thiab yog cov lus qhia ib txwm muaj rau kev faib roj.
Q: Dab tsi kub yuav tsum tau rwb thaiv tsev rau cov neeg ua haujlwm tiv thaiv?
Feem ntau cov cai tswj kev nyab xeeb ntawm qhov chaw kho qhov chaw siab tshaj li 60 degrees Celsius raws li kev kub hnyiab. Chav thiab condensate pipework nyob rau hauv qhov chaw nkag tau yuav tsum tau insulated los yog guarded, nrog kaw rwb thaiv tsev pob qij txha thiab saib xyuas rau kev txhawb nqa thiab kev nkag mus.
