安徽環(huan)瑞針對石(shi)化(hua)行業(例如(ru)原(yuan)油(you)(you)、成品油(you)(you)、天(tian)然(ran)氣、加油(you)(you)站(zhan),石(shi)化(hua)企業的(de)油(you)(you)田、采油(you)(you)廠、煉油(you)(you)廠、化(hua)工廠、油(you)(you)庫(ku)、加油(you)(you)站(zhan)、輸油(you)(you)汽)等(deng)滿足(zu)其易燃(ran)、腐(fu)(fu)蝕、高(gao)溫高(gao)壓惡劣環(huan)境下的(de)在(zai)線環(huan)保煙氣檢(jian)測,脫硫工程(cheng)的(de)需要(yao),研發(fa)生產出石(shi)化(hua)專用(yong)的(de)防腐(fu)(fu)防爆耐高(gao)溫采樣(yang)伴熱管。那么伴熱管的(de)安裝應注意(yi)哪(na)些事項(xiang)呢?伴熱管與主管之(zhi)間的(de)連接(jie)件等(deng)要(yao)求等(deng)又有哪(na)些?
伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)應(ying)與主(zhu)(zhu)管(guan)平行(xing)安(an)裝,并應(ying)自(zi)行(xing)排液(ye)。當一根主(zhu)(zhu)管(guan)需要多根伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)伴(ban)(ban)(ban)熱(re)(re)(re)時,伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)之間(jian)的距(ju)離(li)應(ying)固(gu)定。水平伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)宜安(an)裝在(zai)主(zhu)(zhu)管(guan)下方或靠近支架的側面.鉛垂伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)應(ying)均勻分布在(zai)主(zhu)(zhu)管(guan)周圍,不(bu)得將(jiang)伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)直(zhi)接點(dian)(dian)焊在(zai)主(zhu)(zhu)管(guan)上.而可采用綁扎(zha)帶或鍍鋅鐵絲等(deng)固(gu)定在(zai)主(zhu)(zhu)管(guan)上。彎頭部位的伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)綁扎(zha)帶不(bu)得少(shao)于3道,直(zhi)伴(ban)(ban)(ban)熱(re)(re)(re)管(guan)綁扎(zha)點(dian)(dian)間(jian)距(ju)應(ying)符合
伴熱管公稱直徑 | 10 | 15 | 20 | >20 |
捆扎點間距 | 800 | 1000 | 1500 | 2000 |
對不允許與主管直接接觸的伴熱管.在伴熱管與主管間應有隔離墊。當主管為不銹鋼管,伴熱管為碳鋼管時,隔離墊宜采用抓離子含量不超過5O5創8石棉墊,并應采用不銹鋼絲等不引起滲碳的材料綁扎。伴熱管經過主法蘭時,伴熱管應相應設置可拆卸的連接件。從分配站到各被伴熱主管和離開主管到收集站之間的伴熱管安裝,應排列整齊,不宜互相跨越和就近斜穿。安裝夾套管的連通管時,應盡盤焊接在夾套管的端頭處.防止套管內存液。套管端頭的水平連通管,宜用套管底部沿切線方向引出與接人。連通管安裝應便于操作與維修,盡最貼近套管.達到結構緊湊、外型美觀和定位可靠。夾套上多余的連通管管口,應在系統吹掃合格后隔熱施工前予以封焊。