TPEP防腐鋼管是目(mu)前埋地(di)長輸管(guan)(guan)(guan)線的鋼管(guan)(guan)(guan)防(fang)(fang)腐(fu)形式(shi),是我國自主開(kai)發(fa)的大口(kou)徑(jing)管(guan)(guan)(guan)道(dao)新(xin)型(xing)防(fang)(fang)腐(fu)生(sheng)產(chan)(chan)線,外壁采(cai)用(yong)熱(re)熔(rong)結(jie)纏繞工藝(yi)底層(ceng)(ceng)(ceng)環氧樹(shu)脂、中(zhong)間層(ceng)(ceng)(ceng)膠黏劑、外層(ceng)(ceng)(ceng)聚(ju)乙烯形成(cheng)三層(ceng)(ceng)(ceng)結(jie)構的防(fang)(fang)腐(fu)層(ceng)(ceng)(ceng),內壁采(cai)用(yong)熱(re)噴(pen)涂(tu)(tu)環氧粉(fen)末(mo)的防(fang)(fang)腐(fu)方(fang)式(shi),將粉(fen)末(mo)經高(gao)(gao)(gao)溫加熱(re)熔(rong)結(jie)后均(jun)勻地(di)涂(tu)(tu)敷在管(guan)(guan)(guan)體(ti)表面(mian)上,形成(cheng)鋼塑合金層(ceng)(ceng)(ceng),簡稱TPEP防(fang)(fang)腐(fu)鋼管(guan)(guan)(guan),(T,三層(ceng)(ceng)(ceng)英(ying)文Three的首寫(xie)字母,PE指聚(ju)乙烯,EP指環氧樹(shu)脂),該產(chan)(chan)品在2010年(nian)獲得國家項目(mu)。TPEP鋼管(guan)(guan)(guan)填補了國內鋼管(guan)(guan)(guan)的防(fang)(fang)腐(fu)空白,其價格(ge)與單層(ceng)(ceng)(ceng)聚(ju)乙烯內熔(rong)結(jie)環氧復合鋼管(guan)(guan)(guan)相差無幾,耐腐(fu)蝕能力提高(gao)(gao)(gao)了將近3-5倍(bei)。TPEP防(fang)(fang)腐(fu)鋼管(guan)(guan)(guan)具有良(liang)好的可靠(kao)性(xing)能,一般(ban)情況下普通水(shui)(shui)管(guan)(guan)(guan)道(dao)口(kou)徑(jing)大,一旦發(fa)生(sheng)爆管(guan)(guan)(guan)或漏水(shui)(shui),浪費(fei)比較(jiao)(jiao)大,給居民造(zao)成(cheng)的影響也(ye)比較(jiao)(jiao)大。考(kao)慮管(guan)(guan)(guan)材(cai)質(zhi)量(liang)及承壓能力、連接的可靠(kao)性(xing)。對(dui)自來水(shui)(shui)水(shui)(shui)質(zhi)的標準(zhun)已靠(kao)近國際標準(zhun),居民對(dui)供水(shui)(shui)水(shui)(shui)質(zhi)的要求也(ye)越(yue)(yue)來越(yue)(yue)高(gao)(gao)(gao),內涂(tu)(tu)層(ceng)(ceng)(ceng)為(wei)飲用(yong)水(shui)(shui)級別的管(guan)(guan)(guan)道(dao),防(fang)(fang)止發(fa)生(sheng)二次污染供水(shui)(shui)管(guan)(guan)(guan)網(wang)投入(ru)運(yun)行(xing)費(fei)用(yong)是耗電,線路長,降(jiang)低(di)管(guan)(guan)(guan)網(wang)運(yun)行(xing)耗能的因素,優(you)先選用(yong)管(guan)(guan)(guan)道(dao)粗(cu)糙系(xi)數小的管(guan)(guan)(guan)材(cai)。