Steel sleeve n-gang n-gun n-gun n-gun
Direct lup makoi da ai insulation pipe hpe "pipe pipe" ngu nna mung shamying ma ai, dai gaw "step ladat" lahkawng hte hpawng de da ai rai nna, dai hta density polyethylene shinggan makawp maga lam, polyurethane n-gun ja ai n-gun ja ai plastic n-gun n-gun hte n-gang pipe ni hte hpawng de da ai. Insulation layer arung arai gaw 60 kg/m3 kaw nna 80 kg/m3 du hkra density nga ai rigid polyurethane foam langai mi rai nna, dai gaw n-gang pipe hte casing lapran na gap hpe tup hkrak jat bang ya ai, n-gun n-gun langai mi nga ai, dai hku nna steel pipe, jacket pipe hte insulation layer gaw solid ting byin tai wa hkra galaw lu ai. Polyurethane gaw thermal insulation pipe foam kaja ai hte nbung n-gun rawng ai n-gun rawng ai arung arai ni nga ai, law malawng gaw 120℃hpe galai shai ai (sh) kaga thermal insulation arung arai ni hte kayau kaya galaw ai hku nna 120℃hpe hkam sharang lu ai, nbung katsi ai lam grai law ai hpe hkam sharang lu ai, katsi ai, katsi ai hka n-gun n law ai hte n-gun n law ai hka n-gun thermal thermal insulation engineering amyu myu a matu htuk manu ai.
Polyurethane hpe hkrak lup tawn da ai thermal insulation pipe gaw, 50℃- -150℃lapran na media amyu myu a thermal insulation engineering a matu htuk manu ai. Dai hpe mare kaba na hka lum ai shara, katsi ai shara, katsi ai shara, nhprang wan htu shara, sau htu ai shara, tsi mawan hpaga lam, shingra wan sau htu shapraw ai shara, wan n-gun hpe hkrak lup tawn da ai, nbung n-gun hpe n-gun shayawm ai pipeline insulation, cable pipe, steam insulation pipe hte kaga thermal insulation hte katsi ai hpe makawp maga ai hpaji masa ni hta grai law hkra jai lang ai.
Polyurethane a akyu ni gaw thermal insulation tube 2 hpe hkrak sha lup kau ya ai.
1. Project a manu hpe shayawm na. Dai hte seng ai magam dap ni hpe sawn la ai hku nga yang, lahkawng lang hkang ai n-gun rawng ai pipeline gaw, shinggyim masha ni a masa hta, bungli masing a manu hpe 25% shayawm ya lu ai, FRP hpe makawp maga ai layer hku jai lang ai lam hpe shayawm ya lu ai.
2. N-gun yawm ai hte n-gun hpe hkye la lu ai. Shi a thermal conductivity gaw: λ=0.013—0.03kcal/
MhoC gaw lai wa sai aten hta kaga lang ai pipe insulation arung arai ni hta grau n law ai, insulation effect gaw 4~9 lang grau law ai. Grau nna, shi a hka hpe hkap la ai lam grai yawm ai, 0.2 kg/m2 daram hta. Hka n law ai a lachyum gaw, polyurethane foam hpe pat da ai n-gun gaw 92% daram sha rai nga ai. thermal conductivity hte hka n law ai, n-gun n law ai n-gun rawng ai n-gun hte hka n shang hkra galaw ai lam ni hte rau, hka n shang hkra galaw ai lam ni hte rau, n-gun ja ai polyethylene (sh) FRP makawp maga ai shell hpe galai shai kau ai, htunghking hkai sun galaw ai pipeline "hpun palawng hpun u" ngu ai masa hpe galai shai kau ai, katsi ai pipeline a yawng hkra katsi ai hpe grai shayawm ya lu ai, katsi ai n-gun sum ai lam gaw 2%, 10% a mungkan madang ra kadawn ai lam ni hta n-ga, nbung katsi ai lam yawm mat ai.
3. Anti-corosion hpe ninghkap lu ai, n-gun n-gun n-rawng ai bungli kaja, hte daw jau ai prat galu ai. Hpa majaw nga yang, polyurethane hard foam insulation layer gaw, nbung hte hka de shang wa ai kaw na tsan gang nga ai, n-gang pipe a hkum hkrang hte grai matut mahkai nga ai majaw, dai gaw kaja ai anti-corrosion effect hpe galaw ya lu ai. Dai aten hta sha, shi a hka htung ni hpe pat da nna, hka hpe hkap la ai lam mung grai kaji ai. N-gun ja ai polyethylene shell, glass RP shell gaw n-gun n-gun kaja ai, n-gun n-gun n-rawng ai hte jak rung n-gun rawng ai. Dai majaw, bungli galaw ai steel pipe a shinggan na shan hpe shinggan na nbung hte hka a majaw n-gun n rawng hkra galaw na matu yak nga ai. Pipeline a kata na hka n-gun hpe atsawm sha tsi lajang ya ai aten du hkra, maigan mungdan na jahpan ni hte maren, magam bungli prat gaw shaning 50 jan du lu ai, dai gaw htunghking hku nna hka htung npu na hka htung ni hte ntsa kaw na laying ni hta na htam 3~4 grau law ai.
4. Lamu ga n law ai, lawan ai hku gawgap ai, grup yin hpe makawp maga na matu kaja ai. Direct lup makoi ai pipeline gaw, hka htung kaba hpe gawgap na matu n ra ai, ga kata na insulation pipe hpe lup makoi na matu sha, bungli masing a ginra hpe grai shayawm ya ai, lamu ga bungli hpe 50% jan htu shaw ai hpe shayawm ya ai, mung shawa masat masa hte n-gun hpe 90% shayawm ya ai. Dai aten hta, insulation pipe galaw ai lam hte shara kaw na hka htung ni gaw, shara langai sha re ai hte maren, gap ai aten hpe 50% jan shayawm ya lu ai.
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