Steel sleeve steel insulation pipe a awm bawk.
Direct buried insulation pipe, "pipe pipe" tia hriat bawk hi "two-step method" hmanga siam a ni a, hei hi high density polyethylene outer protective layer, polyurethane hard foam plastic insulation material leh steel pipe hmanga siam a ni. Insulation layer material hi rigid polyurethane foam a ni a, a density chu 60 kg/m3 to 80 kg/m3 a ni a, chu chuan steel pipe leh casing inkar gap chu a belhchhah kim vek a, bonding strength engemaw zat a nei a, chu chuan steel pipe, jacket pipe leh insulation layer te chu solid whole a siam a ni. Polyurethane Direct Buried Thermal Insulation Pipe Foam hian mechanical property tha tak leh thermal insulation property tha tak a nei a, a tlangpuiin high temperature 120℃a tuar thei a, siam danglamna emaw thermal insulation material dang nena inzawm emaw a tuar thei a, temperature sang 180℃a tuar thei a, chu chu khawsik, lum leh lum loh pipeline thermal insulation engineering chi hrang hrang tan a tha a ni.
Polyurethane direct-a phum thermal insulation pipe hi media hrang hrangte thermal insulation engineering atan a tha a, chu chu-50℃- -150℃a ni. Khawpui chhunga central heating, heating room, cold storage, coal mine, oil pipeline port, chemical industry, natural gas pipeline, power direct-a phum, central air conditioning pipeline insulation, cable pipe, steam insulation pipe leh thermal insulation leh cold protection engineering industry dangteah te hman a ni nasa hle.
Polyurethane hian a thatna chu direct-a thermal insulation tube a phum a ni.
1. Project senso tihtlem. Department kaihhnawih chhiar dan chuan double control heating pipeline hian, thil awmdan pangngaiah chuan project man 25%, FRP chu venhimna layer atana hman a tihtlem thei a ni.
2. Heat loss a tlem a, energy a humhim bawk. A thermal conductivity chu: λ=0.013—0.03kcal/ a ni.
Tun hmaa pipe insulation material hman tlanglawn dangte aiin MHOC hi a hniam zawk hle a, insulation effect pawh a let 4~9 in a sang zawk bawk. Chubakah, a tui lakluh rate a hniam hle a, 0.2 kg/m2 vel a ni. Tui a lakluh tlem chhan chu polyurethane foam closure rate chu 92% vel a nih vang a ni. Thermal conductivity hniam leh tui lakluh tlem, insulation layer leh high density polyethylene emaw FRP protective shell-a waterproof performance tha tak nen chuan traditional trench laying heating pipeline "wear wet padded jacket" dinhmun chu a thlak danglam a, heating pipeline overall heat loss chu nasa takin a tihtlem a, heat network heat loss chu 2% a ni a, international standard 10% aia tlem a ni.
3. Anti-corrosion resistance, insulation performance tha tak, leh service life rei tak. Polyurethane hard foam insulation layer chu steel pipe vunah a inzawm tlat avangin, boruak leh tui infiltration atanga lak chhuah a nih avangin anti-corrosion effect tha tak a nei thei a ni. Chutih rual chuan a foaming holes te pawh a khar a, tui lakluh pawh a tlem hle. High density polyethylene shell, glass RP shell te hian corrosion tha tak an nei a, insulation leh mechanical property te an nei tha hle bawk. Chuvangin, pawn lam boruak pawn lam vun chu pawn lam boruak leh tui avanga tihchhiat a harsa hle. Pipeline chhunga tui quality chu enkawl tha a nih chhung chuan ram dang data atanga a lan dan chuan service life hi kum 50 chuang a tling thei a, hei hi traditional trench laying leh overhead laying aiin a let 3~4 in a sang zawk a ni.
4. Ram zau zawk, sak chak, leh boruak humhalhna atana tha. Direct buried heating pipeline hian trench lian tak siam a ngai lo va, lei hnuaia insulation pipe phum mai tur chauh a ni a, chutiang chuan project area chu nasa takin a tihtlem a, leilung hnathawh laihchhuah chu 50% aia tam a tihtlem a, civil masonry leh concrete zat chu 90% in a tihtlem a ni. Chutih rual chuan insulation pipe processing leh on-site trench parallel, site joint chauh hian sak hun chhung chu 50% aia tam a ti tawi thei a ni.
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