PE燃氣管塑料管帽有關PE燃氣管問題匯總

PE管(guan)(guan)(guan)(guan)目(mu)前中國的(de)(de)市(shi)政(zheng)管(guan)(guan)(guan)(guan)材(cai)市(shi)場(chang)，塑料管(guan)(guan)(guan)(guan)道正在(zai)穩步(bu)發展，PE管(guan)(guan)(guan)(guan)、PP-R管(guan)(guan)(guan)(guan)、UPVC管(guan)(guan)(guan)(guan)都占有(you)一席之地(di)，其(qi)中PE管(guan)(guan)(guan)(guan)強勁的(de)(de)發展勢頭(tou)zui為令人(ren)矚目(mu)。PE管(guan)(guan)(guan)(guan)的(de)(de)使用(yong)領域(yu)廣泛。其(qi)中給(gei)(gei)水(shui)管(guan)(guan)(guan)(guan)和(he)燃氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)是其(qi)兩個zui大的(de)(de)應(ying)用(yong)市(shi)場(chang)。PE樹脂(zhi)，是由單體(ti)乙(yi)(yi)烯(xi)聚(ju)(ju)合(he)而(er)成，由于在(zai)聚(ju)(ju)合(he)時因壓(ya)力、溫度(du)等聚(ju)(ju)合(he)反應(ying)條件不(bu)同，可得(de)出(chu)不(bu)同密度(du)的(de)(de)樹脂(zhi)，因而(er)又有(you)高密度(du)聚(ju)(ju)乙(yi)(yi)烯(xi)、中密度(du)聚(ju)(ju)乙(yi)(yi)烯(xi)和(he)低密度(du)聚(ju)(ju)乙(yi)(yi)烯(xi)之分。在(zai)加工不(bu)同類型PE管(guan)(guan)(guan)(guan)材(cai)時，根據其(qi)應(ying)用(yong)條件的(de)(de)不(bu)同，選用(yong)樹脂(zhi)牌(pai)號的(de)(de)同，同時對擠出(chu)機和(he)模具(ju)的(de)(de)要求也有(you)所不(bu)同。PE燃氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)執行標準:GB15558.1-2003上(shang)把聚(ju)(ju)乙(yi)(yi)烯(xi)管(guan)(guan)(guan)(guan)的(de)(de)材(cai)料分為PE32、PE40、PE63、PE80、PE100五個等級，而(er)用(yong)于燃氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)封蓋和(he)給(gei)(gei)水(shui)管(guan)(guan)(guan)(guan)的(de)(de)材(cai)料主要是PE80和(he)PE100。我國對聚(ju)(ju)乙(yi)(yi)烯(xi)管(guan)(guan)(guan)(guan)材(cai)料沒有(you)分級，這使得(de)國內聚(ju)(ju)乙(yi)(yi)烯(xi)燃氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)和(he)給(gei)(gei)水(shui)管(guan)(guan)(guan)(guan)生產廠家選擇(ze)原(yuan)材(cai)料比較困難，也給(gei)(gei)聚(ju)(ju)乙(yi)(yi)烯(xi)管(guan)(guan)(guan)(guan)材(cai)的(de)(de)使用(yong)帶來了(le)不(bu)小的(de)(de)隱患(huan)。

PE安全燃氣管堵頭連接方式有關PE燃氣管問題匯總

一(yi)(yi)、電熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)連(lian)(lian)接(jie)(jie)(jie)(jie)：電熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)連(lian)(lian)接(jie)(jie)(jie)(jie)是將(jiang)(jiang)電熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)套在(zai)管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)、管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)上(shang)，電熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)內(nei)表(biao)面(mian)的(de)(de)電阻絲通電加熱(re)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)化電熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)的(de)(de)內(nei)表(biao)面(mian)和與之(zhi)(zhi)承(cheng)(cheng)(cheng)插(cha)的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)外表(biao)面(mian)，使(shi)之(zhi)(zhi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)為一(yi)(yi)體。二、熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)承(cheng)(cheng)(cheng)插(cha)連(lian)(lian)接(jie)(jie)(jie)(jie)：通過熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)連(lian)(lian)接(jie)(jie)(jie)(jie)器，將(jiang)(jiang)管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)、管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)的(de)(de)插(cha)口(kou)(kou)端(duan)(duan)與管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)的(de)(de)承(cheng)(cheng)(cheng)口(kou)(kou)端(duan)(duan)同時(shi)加熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)融，將(jiang)(jiang)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)化的(de)(de)插(cha)口(kou)(kou)件(jian)插(cha)入承(cheng)(cheng)(cheng)口(kou)(kou)件(jian)，固定至(zhi)冷卻(que)。三、熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)對(dui)(dui)接(jie)(jie)(jie)(jie)連(lian)(lian)接(jie)(jie)(jie)(jie)：熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)對(dui)(dui)接(jie)(jie)(jie)(jie)是將(jiang)(jiang)熱(re)塑性管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)的(de)(de)末端(duan)(duan)，利用加熱(re)板加熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)融后相互對(dui)(dui)接(jie)(jie)(jie)(jie)融合，經(jing)冷卻(que)固定而連(lian)(lian)接(jie)(jie)(jie)(jie)在(zai)一(yi)(yi)起的(de)(de)方法(fa)(fa)。熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)對(dui)(dui)接(jie)(jie)(jie)(jie)是聚乙(yi)烯管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)的(de)(de)聚丙(bing)烯管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)zui主要(yao)和zui傳統(tong)的(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)方法(fa)(fa)。一(yi)(yi)般認為熱(re)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)對(dui)(dui)接(jie)(jie)(jie)(jie)適用于(yu)DN63mm以上(shang)口(kou)(kou)徑管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)或壁厚6mm以上(shang)管(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)(cai)的(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)。

PE燃氣管道規格

PE燃(ran)氣(qi)管常用(yong)(yong)的一般有外徑(jing)32、40、50、63、90、110、160、200、250、315，分SDR11、SDR17.6兩個系列；PE給(gei)水管用(yong)(yong)的外徑(jing)規(gui)格(ge)跟燃(ran)氣(qi)差不(bu)多只是，SDR規(gui)格(ge)系列會多一些。

PE燃氣管管子蓋的優點

⑴連(lian)接(jie)(jie)可(ke)靠：聚乙烯管(guan)道(dao)系統之間采用(yong)電(dian)熱熔(rong)方式連(lian)接(jie)(jie)，接(jie)(jie)頭(tou)的(de)(de)強度(du)(du)高于(yu)管(guan)道(dao)本體(ti)強度(du)(du)。⑵低(di)溫抗沖擊性(xing)好：聚乙烯的(de)(de)低(di)溫脆化(hua)溫度(du)(du)極低(di)，可(ke)在(zai)-60-60℃溫度(du)(du)范(fan)圍內安全使(shi)(shi)用(yong)。冬季施工時(shi)，因(yin)材料抗沖擊性(xing)好，不會(hui)發(fa)生管(guan)子(zi)脆裂。⑶抗應力開裂性(xing)好：HDPE具有低(di)的(de)(de)缺(que)口敏(min)感性(xing)、高的(de)(de)剪切(qie)強度(du)(du)和優異的(de)(de)抗刮痕能(neng)力，耐(nai)環境應力開裂性(xing)能(neng)也(ye)非(fei)常(chang)突出。⑷耐(nai)化(hua)學(xue)腐(fu)(fu)(fu)(fu)蝕性(xing)好：HDPE管(guan)道(dao)可(ke)耐(nai)多種化(hua)學(xue)介質(zhi)的(de)(de)腐(fu)(fu)(fu)(fu)蝕，土壤中(zhong)存在(zai)的(de)(de)化(hua)學(xue)物質(zhi)不會(hui)對管(guan)道(dao)造(zao)成任何降(jiang)解作(zuo)用(yong)。聚乙烯是(shi)電(dian)的(de)(de)絕緣體(ti)，因(yin)此不會(hui)發(fa)生腐(fu)(fu)(fu)(fu)爛(lan)、生銹(xiu)或(huo)(huo)電(dian)化(hua)學(xue)腐(fu)(fu)(fu)(fu)蝕現象；此外它也(ye)不會(hui)促(cu)進(jin)藻類、細菌或(huo)(huo)真菌生長。⑸耐(nai)老化(hua)，使(shi)(shi)用(yong)壽命長：含有2-2.5%的(de)(de)均(jun)勻分布的(de)(de)碳黑的(de)(de)聚乙烯管(guan)道(dao)能(neng)夠在(zai)室外露天存放或(huo)(huo)使(shi)(shi)用(yong)50年，不會(hui)因(yin)遭受紫外線(xian)輻射而(er)損(sun)害(hai)。

PE燃氣管封頭道套定額

1.市政燃氣管(guan)道(dao)、室外燃氣管(guan)道(dao)劃分。

室內外管道分界：

1．地下引(yin)入室內的管道以室內*個閥門為(wei)界(jie)。

2．地上引入室(shi)內(nei)的(de)管道以墻(qiang)外三通為界(jie)。