Tuam Tshoj 3PE anticorrosive steel yeeb nkab chaw tsim tshuaj paus
1. Txo tus nqi ntawm qhov project
Raws li kev suav ntawm cov tuam haujlwm muaj feem cuam tshuam, feem ntau, polyurethane insulated steel yeeb nkab tuaj yeem txo qhov project nqi li ntawm 25% (siv FRP raws li txheej tiv thaiv) thiab 10% (siv high-density polyethylene li txheej tiv thaiv).
2. Tsawg kub poob thiab txuag hluav taws xob
Cov thermal conductivity ntawm polyurethane yog: λ = 0.013-0.03kcal / m · h · OC, uas yog qis dua li lwm cov khoom siv hluav taws xob rwb thaiv tsev yav dhau los, thiab cov nyhuv rwb thaiv tsev zoo dua 4 ~ 9 zaug. Ntxiv mus, nws cov dej nqus dej tsawg heev, txog 0.2kg / m2. Qhov laj thawj rau kev nqus dej tsawg yog tias polyurethane ua npuas ncauj muaj qhov porosity kaw ntawm li 92%. Tsawg thermal conductivity thiab tsis tshua muaj dej nqus, ua ke nrog thermal rwb thaiv tsev txheej thiab high-density polyethylene los yog FRP tiv thaiv plhaub nrog zoo waterproof kev ua tau zoo sab nraum, tau hloov qhov teeb meem ntawm "hnav ntub paj rwb padded tsho" ntawm tsoos trench nteg tso cua sov pipeline, thiab zoo heev. txo tag nrho cov cua sov poob ntawm cov kav dej kub. Lub tshav kub poob ntawm cov hluav taws xob hluav taws xob yog 2%, uas yog tsawg dua li cov txheej txheem thoob ntiaj teb xav tau ntawm 10%.
3. Anti corrosion, zoo rwb thaiv tsev thiab kev pab lub neej ntev
Vim hais tias cov polyurethane nruj npuas rwb thaiv tsev txheej yog nruj nreem khi rau cov tawv nqaij ntawm cov yeeb nkab steel, qhov infiltration ntawm huab cua thiab dej yuav raug cais tawm, thiab cov nyhuv anticorrosion zoo tuaj yeem ua tiav. Nyob rau tib lub sijhawm, nws cov foaming pores raug kaw thiab nws qhov nqus dej tsawg heev. High density polyethylene plhaub thiab FRP plhaub muaj zoo tiv thaiv corrosion, rwb thaiv tsev thiab txhua yam khoom. Yog li ntawd, cov tawv nqaij sab nrauv ntawm cov yeeb nkab steel ua haujlwm yog ib qho nyuaj rau eroded los ntawm sab nraud cua thiab dej. Raws li ntev raws li cov dej sab hauv ntawm cov raj xa dej tau kho tau zoo, raws li cov ntaub ntawv txawv teb chaws, lub neej kev pabcuam tuaj yeem ncav cuag ntau tshaj 50 xyoo, uas yog 3 ~ 4 npaug ntev dua li cov tsoos trench nteg thiab overhead nteg.
Piv nrog rau cov tsoos steel yeeb nkab rwb thaiv tsev txoj kev, prefabricated ncaj qha faus rwb thaiv tsev steel yeeb nkab muaj qhov zoo tshaj plaws:
1.Lub prefabricated ncaj qha faus insulated steel yeeb nkab tsis tas yuav tsim ib tug loj trench, tab sis tsuas yog yuav tsum tau faus lub insulated yeeb nkab nyob rau hauv av, uas zoo heev txo cov av txoj hauj lwm ntawm qhov project, yog conducive rau ib puag ncig tiv thaiv, txo tus nqi ntawm earthwork excavation los ntawm ntau. tshaj 50%, thiab txo qhov nyiaj ntawm pej xeem masonry thiab pob zeb los ntawm 90%. Nyob rau tib lub sijhawm, kev tsim cov yeeb nkab rwb thaiv tsev yog ua los ntawm kev sib txuas nrog rau ntawm qhov chaw trenching, thiab tsuas yog yuav tsum tau sib koom ua ke ntawm qhov chaw, uas tuaj yeem txo lub sijhawm tsim kho ntau dua 50%.
2.Kev txuag hluav taws xob yog qhov zoo, thiab qhov kub poob tsuas yog 25% ntawm cov kav dej ib txwm muaj. Lub sijhawm ua haujlwm ntev tuaj yeem txuag tau ntau lub zog thiab txo cov nqi zog.
3.Nws muaj cov dej tsis zoo thiab corrosion kuj. Nws tsis tas yuav txuas cov yeeb nkab trench. Nws tuaj yeem raug faus ncaj qha rau hauv av lossis dej. Kev tsim kho yog qhov yooj yim thiab nrawm, thiab cov nqi them nqi tsawg.
4. Nws kuj muaj qhov zoo corrosion kuj thiab cuam tshuam tsis kam nyob rau hauv qhov kub thiab txias, thiab tuaj yeem ncaj qha faus rau hauv av khov av.
5.Lub neej kev pabcuam tuaj yeem ncav cuag 30-50 xyoo. Kev txhim kho thiab siv kom raug tuaj yeem ua rau tus nqi tu cov yeeb nkab network tsawg heev.
6. Lub tswb system tuaj yeem teeb tsa kom pom qhov ua txhaum ntawm cov yeeb nkab network, qhia qhov tseeb qhov chaw txhaum thiab lub tswb tau txais.
