①. 一般不銹鋼容器管道受工藝過程和容器結構的約束因素較少,所以不銹鋼管道的敷設重點在操作方便、經濟美觀。
②. 不銹鋼容器的周圍宜(yi)分(fen)為配管區(qu)和操作區(qu),不銹鋼管道布置在配管區(qu),儀表、人孔(kong)和梯(ti)子(zi)布置在操作區(qu)。
③. 不銹鋼(gang)管(guan)道宜沿著立式容(rong)器的(de)外壁布置,管(guan)道上的(de)閥門應(ying)與設備管(guan)口直接(jie)連(lian)接(jie)。
④. 臥式容器下部的管(guan)道如果考慮人員通(tong)行,管(guan)道距操作面的凈空高度不應小于2.2m。
⑤. 不銹鋼容器(qi)底(di)部管道沿地面(mian)敷(fu)設時,管道低點(dian)排液口距地面(mian)的(de)凈(jing)距不應小于150mm。
⑥. 不(bu)銹鋼容器管(guan)(guan)(guan)(guan)道(dao)配管(guan)(guan)(guan)(guan)設(she)計(ji)應(ying)滿足工藝(yi)要求。例如,入(ru)口管(guan)(guan)(guan)(guan)道(dao)避免出(chu)現(xian)袋形;有無坡度等(deng)要求。如圖5.27(a)、(b)所(suo)示(shi),為使停工時管(guan)(guan)(guan)(guan)內不(bu)積液(ye),應(ying)采用(yong)底平的(de)異徑管(guan)(guan)(guan)(guan)。如圖5.27(c)、(d)所(suo)示(shi),回流油罐(guan)(guan)進泵(beng)管(guan)(guan)(guan)(guan)線不(bu)得(de)出(chu)現(xian)下(xia)袋形,防(fang)止(zhi)氣(qi)阻和(he)汽(qi)蝕,防(fang)止(zhi)泵(beng)抽空。如圖5.27所(suo)示(shi),初餾和(he)常壓(ya)塔頂回流罐(guan)(guan)的(de)通往燃(ran)料氣(qi)的(de)管(guan)(guan)(guan)(guan)線,其(qi)切斷閥(fa)應(ying)靠(kao)近設(she)備管(guan)(guan)(guan)(guan)口,管(guan)(guan)(guan)(guan)線不(bu)得(de)出(chu)現(xian)袋形,以免積液(ye)影響罐(guan)(guan)內壓(ya)力,在管(guan)(guan)(guan)(guan)線的(de)高點設(she)放空閥(fa)。
⑦. 優先考慮臥式容器的大口徑不銹(xiu)鋼管(guan)道,然后考慮其他管道,考慮支承,美觀地敷設。
⑧. 不銹(xiu)鋼(gang)管道可(ke)在容器(qi)本體上(shang)設置支架。
⑨. 從立式容器上部管(guan)(guan)口(kou)下來(lai)的管(guan)(guan)道和大(da)口(kou)徑不銹鋼管(guan)(guan)道應(ying)優先配(pei)置。
⑩. 不銹鋼容器(qi)安全閥的配管設計
a. 按照TSG R0004《固定(ding)(ding)(ding)(ding)式壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)安(an)(an)(an)全(quan)(quan)(quan)(quan)技術監察規程》規定(ding)(ding)(ding)(ding):壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)應(ying)當豎直安(an)(an)(an)裝(zhuang)在(zai)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)液面(mian)(mian)以上氣相空(kong)間(jian)部分,或(huo)者(zhe)裝(zhuang)設在(zai)與(yu)(yu)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)氣相空(kong)間(jian)相連(lian)的(de)(de)管(guan)(guan)(guan)道上;壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)與(yu)(yu)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)之(zhi)間(jian)的(de)(de)連(lian)接(jie)管(guan)(guan)(guan)和(he)管(guan)(guan)(guan)件的(de)(de)通孔,其(qi)截(jie)面(mian)(mian)積(ji)不得小(xiao)于(yu)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)進口截(jie)面(mian)(mian)積(ji),其(qi)接(jie)管(guan)(guan)(guan)應(ying)當盡(jin)量(liang)短(duan)而直;壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)一(yi)個(ge)連(lian)接(jie)口上裝(zhuang)設兩(liang)個(ge)或(huo)者(zhe)兩(liang)個(ge)以上安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)時,則該連(lian)接(jie)口入口的(de)(de)截(jie)面(mian)(mian)積(ji),應(ying)當至少(shao)等于(yu)這些(xie)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)進口截(jie)面(mian)(mian)積(ji)總和(he);安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)與(yu)(yu)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)之(zhi)間(jian)一(yi)般不宜裝(zhuang)設截(jie)止閥(fa)(fa)門;為(wei)實現安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)在(zai)線校驗,可在(zai)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)與(yu)(yu)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)之(zhi)間(jian)裝(zhuang)設爆破片裝(zhuang)置(zhi);對于(yu)盛(sheng)裝(zhuang)毒(du)性程度(du)為(wei)極度(du)、高度(du)、中(zhong)度(du)危害(hai)介(jie)質,易燃介(jie)質,腐蝕、黏性介(jie)質或(huo)者(zhe)貴重(zhong)介(jie)質的(de)(de)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi),為(wei)便于(yu)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)清洗與(yu)(yu)更換,經過(guo)使用單位主管(guan)(guan)(guan)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)安(an)(an)(an)全(quan)(quan)(quan)(quan)技術負責人批準(zhun),并且制(zhi)定(ding)(ding)(ding)(ding)可靠的(de)(de)防范(fan)措(cuo)施,方可在(zai)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)(爆破片裝(zhuang)置(zhi))與(yu)(yu)壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)之(zhi)間(jian)裝(zhuang)設截(jie)止閥(fa)(fa)門,壓(ya)(ya)力(li)(li)(li)(li)容(rong)(rong)(rong)(rong)器(qi)(qi)(qi)(qi)(qi)正常運行(xing)期(qi)間(jian)截(jie)止閥(fa)(fa)門必(bi)須保證(zheng)全(quan)(quan)(quan)(quan)開(加(jia)鉛封或(huo)者(zhe)鎖定(ding)(ding)(ding)(ding)),截(jie)止閥(fa)(fa)門的(de)(de)結構和(he)通徑(jing)不得妨礙安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)安(an)(an)(an)全(quan)(quan)(quan)(quan)閥(fa)(fa)的(de)(de)安(an)(an)(an)全(quan)(quan)(quan)(quan)泄放。
b. 不(bu)銹鋼容器安全閥設(she)計安裝(zhuang)位置靠近容器的主管位置,遠距離設(she)置時,要進(jin)行壓(ya)降(jiang)核算。
c. 安全(quan)閥跳動時,產生推(tui)力,應設計抗推(tui)力的支(zhi)架。
d. 排(pai)向大(da)氣(qi)的噴出管(guan)口(kou)肘部(bu)設(she)置(zhi)淚孔,以便于液體和雨水排(pai)出。排(pai)放(fang)不要朝向通道(dao)口(kou)。
e. 多個安全(quan)閥(fa)相鄰安裝時,排出管(guan)采用(yong)集(ji)合管(guan)形式。
?. 立式容器若采(cai)用(yong)裙座(zuo)式支撐(cheng),容器底部(bu)的所有(you)管口應(ying)采(cai)用(yong)管線把接口法蘭引到裙座(zuo)外(wai)側,裙座(zuo)內(nei)不得(de)安裝法蘭和閥門等(deng),見圖5.28。
?. 受熱(re)作用(yong)的(de)管道(dao)應考(kao)慮其柔性要求。例如,與離心壓縮(suo)機相(xiang)接的(de)管道(dao);儀(yi)表用(yong)的(de)較長連接管。
?. 產生振動的管道應(ying)對支架(jia)進行加(jia)固。