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設備及管道工程防腐蝕施工技術
第一節、設(she)(she)(she)備(bei)(bei)及(ji)管(guan)道(dao)防(fang)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)工程施(shi)(shi)工方法 一、設(she)(she)(she)備(bei)(bei)及(ji)管(guan)道(dao)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)類(lei)型(xing)和防(fang)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)措施(shi)(shi) (一)設(she)(she)(she)備(bei)(bei)及(ji)管(guan)道(dao)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)類(lei)型(xing) 1.按(an)照(zhao)金(jin)屬腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)機理(li)(li)分(fen)類(lei):化學腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、電化學腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)。 2.按(an)照(zhao)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)環境分(fen)類(lei):大氣(qi)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、土(tu)壤腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、海水腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、淡水腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、化學介質腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、高溫腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)等(deng)。 3.按(an)照(zhao)破壞形態分(fen)類(lei):全面腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)、局部腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)。 (二)設(she)(she)(she)備(bei)(bei)及(ji)管(guan)道(dao)防(fang)腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)措施(shi)(shi) 設(she)(she)(she)備(bei)(bei)及(ji)管(guan)道(dao)本體材(cai)料應符合(he)設(she)(she)(she)計文件規定,并采取下列技術措施(shi)(shi):介質處理(li)(li)、覆(fu)蓋層、電化學保護、添加緩(huan)蝕(shi)(shi)(shi)(shi)(shi)(shi)劑(ji)。 1.介質處理(li)(li) 包括去除介質中(zhong)促進腐(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)(shi)(shi)的有(you)害成分(fen),調節介質的pH值及(ji)改(gai)變介質的濕度等(deng)。 …
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第七屆中國國際管道會議暨技術裝備與成果展舉辦
4月12日至13日,第(di)七屆中國國際管道(dao)(dao)(dao)會(hui)議(yi)(CIPC)暨(ji)技(ji)術(shu)(shu)裝備與(yu)(yu)成果(guo)展在(zai)京(jing)舉辦。會(hui)議(yi)以“創(chuang)(chuang)新(xin)、綠色、安(an)全”為(wei)主題,全面加強國際管道(dao)(dao)(dao)技(ji)術(shu)(shu)交(jiao)流(liu)與(yu)(yu)合作,全面展示管道(dao)(dao)(dao)領(ling)域創(chuang)(chuang)新(xin)成果(guo)及(ji)實踐,交(jiao)流(liu)研(yan)討(tao)油氣、氫能(neng)、二(er)氧化碳等介質(zhi)輸(shu)送新(xin)技(ji)術(shu)(shu)新(xin)思路新(xin)舉措,探討(tao)新(xin)時代背景(jing)下管道(dao)(dao)(dao)技(ji)術(shu)(shu)領(ling)域的(de)發展方向(xiang)。 國家管網集團董事長、黨組書記張偉在(zai)開(kai)幕式(shi)上致(zhi)辭。他指出,油氣能(neng)源(yuan)是現代工業(ye)(ye)社會(hui)的(de)“血液”,確保管道(dao)(dao)(dao)這(zhe)一能(neng)源(yuan)“動脈”安(an)全平(ping)穩高效運行(xing),一直(zhi)是管道(dao)(dao)(dao)人孜孜以求的(de)目標(biao)。管道(dao)(dao)(dao)行(xing)業(ye)(ye)已走過(guo)150多年的(de)發展歷程,在(zai)材料、設計(ji)、建設、運營(ying)…
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PPR、UPVC、PVC、PERT、PE、HDPE塑料管材詳解
機電管材種類眾(zhong)多,PPR、UPVC、PVC、PERT、PE、HDPE等等,是不(bu)是一頭霧水(shui)(shui)、眼花繚亂? 本文去繁為(wei)簡,通過常用(yong)管材從規(gui)范、區(qu)別(bie)、施工工藝(yi)、造價成本等方(fang)面予以闡(chan)述,幫助大家學習理解。 一、PPR 1、聚(ju)(ju)丙烯管,常用(yong)作室(shi)內冷(leng)水(shui)(shui)(管壁(bi)藍色線)、熱(re)水(shui)(shui)管(管壁(bi)紅(hong)色線);常用(yong)為(wei)4米/根; 2、冷(leng)熱(re)水(shui)(shui)用(yong)聚(ju)(ju)丙烯管道系(xi)統《GB/T18742.2-2017》: S6.3至S2代表不(bu)同的承壓(ya)(ya)能力,承壓(ya)(ya)越大,壁(bi)厚越大; 比如S5承受1.25MPa壓(ya)(ya)力,S4承受1.6MPa壓(ya)(ya)力,S3.2承受2.0MPa壓(ya)(ya)力…
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PSP鋼塑復合通信管價格表
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psp鋼塑復合壓力管價格多少錢一米
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PSP鋼塑復合管電磁雙熱熔管件價格表
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給水鋼塑復合管價格表單價
給水鋼塑復(fu)合管價(jia)(jia)格表 行業標準:CJ/T 183-2008 規格 單位 壁厚 價(jia)(jia)格 de20 米 2.0 18 de25 米 2.5 22 de32 米 3.0 37 de40 米 3.5 48 de50 米 4.5 73 de63 米 5.0 108 de75 米 5.5 135 de90 米 6.0 198 de110 米 6.5 240 de125 米 6.8 375 de160 米 7.0 500 de200 米 7.5 668 de250 米 8…
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東北制藥金屬管件集中采購
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消防給水系統:水錘消除器如何安裝
在各類建筑(zhu)(zhu)消(xiao)防(fang)設施中,諸如常(chang)(chang)(chang)見的(de)消(xiao)火(huo)栓系(xi)(xi)統、自動噴水(shui)(shui)(shui)(shui)滅火(huo)系(xi)(xi)統、泡沫滅火(huo)系(xi)(xi)統,其滅火(huo)劑主要是水(shui)(shui)(shui)(shui)或水(shui)(shui)(shui)(shui)的(de)混合(he)物等流體,在傳輸系(xi)(xi)統可能產生的(de)水(shui)(shui)(shui)(shui)外錘(chui)和浪涌(yong)發生的(de)不(bu)規則(ze)水(shui)(shui)(shui)(shui)擊波震蕩,導致(zhi)破壞供(gong)液管網的(de)穩定性、消(xiao)防(fang)水(shui)(shui)(shui)(shui)泵的(de)安全性,很容易影(ying)響建筑(zhu)(zhu)消(xiao)防(fang)設施正常(chang)(chang)(chang)使用(yong)功能。相關系(xi)(xi)統在安裝時采用(yong)水(shui)(shui)(shui)(shui)錘(chui)消(xiao)除器(也稱水(shui)(shui)(shui)(shui)錘(chui)吸納器),在無需阻止(zhi)流體流動的(de)情況下,可有效的(de)消(xiao)除水(shui)(shui)(shui)(shui)錘(chui)具(ju)有破壞性的(de)沖(chong)擊波,從(cong)而對(dui)建筑(zhu)(zhu)消(xiao)防(fang)設置起(qi)到保護之目的(de)。 本文就(jiu)水(shui)(shui)(shui)(shui)錘(chui)消(xiao)除器就(jiu)常(chang)(chang)(chang)見問題,引述一(yi)些觀點,不(bu)妥(tuo)之處,敬(jing)請批(pi)評指正。 一(yi)、常(chang)(chang)(chang)見問題 1、未設水(shui)(shui)(shui)(shui)錘(chui)消(xiao)除止(zhi)回…
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PE管鋪設管槽井坑開挖安裝水表閥門
PE管鋪設管槽井坑開挖安裝水(shui)表(biao)閥(fa)(fa)門(men) 考(kao)慮除主材(cai)之外配(pei)件(jian),在施工(gong)(gong)損(sun)耗1%基礎,考(kao)慮輔材(cai)配(pei)件(jian),材(cai)料(liao)(liao)費加10%。 水(shui)表(biao)安裝∮63(比照管徑(jing),以實際表(biao)徑(jing)規(gui)格為準(zhun)),材(cai)料(liao)(liao)費295元(yuan)(yuan)(yuan)/個(ge),人(ren)工(gong)(gong)0.105*200=21元(yuan)(yuan)(yuan) 水(shui)表(biao)∮110,材(cai)料(liao)(liao)費354元(yuan)(yuan)(yuan)/個(ge),人(ren)工(gong)(gong)0.105*200=21元(yuan)(yuan)(yuan) 閥(fa)(fa)門(men)∮63,材(cai)料(liao)(liao)費960元(yuan)(yuan)(yuan),人(ren)工(gong)(gong)費0.28*200=56 元(yuan)(yuan)(yuan) 閥(fa)(fa)門(men)∮110免檢閥(fa)(fa),材(cai)料(liao)(liao)費1152;人(ren)工(gong)(gong)費0.28*200=56 元(yuan)(yuan)(yuan)。 閥(fa)(fa)門(men)DN125免檢閥(fa)(fa);材(cai)料(liao)(liao)費1390;人(ren)工(gong)(gong)0.28*200=56 元(yuan)(yuan)(yuan)。 消(xiao)火栓∮63,520…
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給水鑄鐵管道DN100改造,鋪設PE40管道,計算每米單價費用指標
給(gei)(gei)(gei)水鑄(zhu)鐵管(guan)(guan)(guan)(guan)道(dao)(dao)DN100改造,鋪設PE40管(guan)(guan)(guan)(guan)道(dao)(dao),計算每米(mi)單(dan)價費用指標 砌(qi)筑給(gei)(gei)(gei)水檢查井內(nei)徑700mm,外(wai)徑1108,墊層(ceng)外(wai)挑50mm,不含給(gei)(gei)(gei)水管(guan)(guan)(guan)(guan)及閥門水表(biao)安裝。 鋪設PE管(guan)(guan)(guan)(guan)道(dao)(dao)不扣檢查井所占長度(du)。 一、PE給(gei)(gei)(gei)水管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)槽開挖 1、管(guan)(guan)(guan)(guan)槽開挖以直線為宜,槽底(di)開挖寬度(du)為DN+0.30m。遇到管(guan)(guan)(guan)(guan)道(dao)(dao)在地下(xia)連接(jie)時,應(ying)(ying)適當(dang)增加接(jie)口(kou)處槽底(di)寬度(du),管(guan)(guan)(guan)(guan)道(dao)(dao)槽底(di)寬度(du)不宜小(xiao)于(yu)DN+0.50m,以方便(bian)安裝對接(jie)為宜。 2、管(guan)(guan)(guan)(guan)道(dao)(dao)埋設時最小(xiao)管(guan)(guan)(guan)(guan)頂覆土深度(du)應(ying)(ying)符合下(xia)列要求:①埋設在車(che)行(xing)道(dao)(dao)下(xia)時,不應(ying)(ying)小(xiao)于(yu)0.80m。②埋設在人行(xing)道(dao)(dao)下(xia)時,不應(ying)(ying)小(xiao)于(yu)0.6…
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常用管道尺寸對照表
一、De、DN、d、φ的(de)(de)(de)含(han)義 一般來說,管(guan)(guan)子(zi)的(de)(de)(de)直徑(jing)(jing)可分(fen)為外(wai)徑(jing)(jing)(De)、內(nei)(nei)徑(jing)(jing)(D)、公稱直徑(jing)(jing)(DN)。 1、DN是指(zhi)(zhi)管(guan)(guan)道的(de)(de)(de)公稱直徑(jing)(jing),是外(wai)徑(jing)(jing)與(yu)內(nei)(nei)徑(jing)(jing)的(de)(de)(de)平均值(zhi)。DN的(de)(de)(de)值(zhi)=De的(de)(de)(de)值(zhi)﹣0.5*管(guan)(guan)壁厚度。 注(zhu)(zhu)意:這既不是外(wai)徑(jing)(jing)也不是內(nei)(nei)徑(jing)(jing)。水、煤氣輸送鋼管(guan)(guan)(鍍鋅鋼管(guan)(guan)或非(fei)鍍鋅鋼管(guan)(guan))、鑄鐵管(guan)(guan)、鋼塑復(fu)合管(guan)(guan)和聚氯乙(yi)烯(xi)(PVC)管(guan)(guan)等(deng)管(guan)(guan)材,應(ying)標(biao)(biao)注(zhu)(zhu)公稱直徑(jing)(jing)“DN”(如DN15、DN50); 2、De主要是指(zhi)(zhi)管(guan)(guan)道外(wai)徑(jing)(jing),PPR、PE管(guan)(guan)、聚丙烯(xi)管(guan)(guan)外(wai)徑(jing)(jing),一般采用De標(biao)(biao)注(zhu)(zhu)的(de)(de)(de),均需(xu)要標(biao)(biao)注(zhu)(zhu)成外(wai)徑(jing)(jing) x 壁厚的(de)(de)(de)形式,例(li)De25 x 3; 3、D…