NEWS
1.穿(chuan)越(yue)或跨越(yue)國家鐵路(lu)、公路(lu)、河(he)流的(de)(de)給(gei)水排水管道(dao)(dao)，應(ying)征得有關部門的(de)(de)同(tong)意。2.裝置（單元(yuan)）給(gei)水排水管道(dao)(dao)的(de)(de)進(jin)(jin)、出(chu)(chu)口方位，應(ying)結合全廠性給(gei)水排水管道(dao)(dao)的(de)(de)布置確定，并(bing)應(ying)減少進(jin)(jin)、出(chu)(chu)口管道(dao)(dao)的(de)(de)數量。3.給(gei)水排水管道(dao)(dao)不得穿(chuan)過設備基(ji)(ji)礎、柱基(ji)(ji)礎和建筑物(wu)的(de)(de)伸縮縫、沉降縫。如(ru)必(bi)須(xu)穿(chuan)過時，應(ying)采取相應(ying)的(de)(de)措...
①.冷(leng)(leng)卻水管道布(bu)置應符合工藝(yi)的要求，如冷(leng)(leng)卻水的種類、用(yong)途，用(yong)水設備是否間(jian)斷操作及停(ting)工檢要求。室外(wai)敷設在管廊上(shang)的大(da)直徑水管道宜(yi)靠近(jin)管廊柱子布(bu)置。②.寒冷(leng)(leng)地區埋地敷設的水管道引出(chu)地面時，管道應根據工藝(yi)要求，在冷(leng)(leng)卻水進出(chu)口管道上(shang)設置防(fang)凍排水閥、防(fang)凍循環(huan)閥和防(fang)凍長流水閥等措(cuo)施，如圖(tu)2...
①.消(xiao)防(fang)(fang)噴(pen)淋(lin)系統(tong)(tong)是(shi)一種消(xiao)防(fang)(fang)滅火裝(zhuang)置，是(shi)應用十分廣泛的固(gu)定消(xiao)防(fang)(fang)設(she)(she)施，它具(ju)有(you)價格低廉、滅火效率高等特點。根據(ju)功能(neng)不同可以分為人工控制和自(zi)動(dong)控制兩種形(xing)式(shi)。系統(tong)(tong)安裝(zhuang)報警裝(zhuang)置，可以在發生(sheng)火災(zai)時(shi)自(zi)動(dong)發出警報，自(zi)動(dong)控制式(shi)的消(xiao)防(fang)(fang)噴(pen)淋(lin)系統(tong)(tong)還可以自(zi)動(dong)噴(pen)水并且和其他消(xiao)防(fang)(fang)設(she)(she)施同步聯動(dong)工作，因此能(neng)有(you)效控...
①.火(huo)炬(ju)管(guan)道(dao)應(ying)架空(kong)敷設。②.火(huo)炬(ju)管(guan)道(dao)坡度不應(ying)小(xiao)于2‰，管(guan)道(dao)應(ying)坡向(xiang)分(fen)液(ye)罐、水封罐；管(guan)道(dao)沿線(xian)出現低(di)點，應(ying)設置(zhi)分(fen)液(ye)罐或集液(ye)罐。火(huo)炬(ju)總(zong)(zong)管(guan)應(ying)坡向(xiang)裝(zhuang)置(zhi)邊界線(xian)處(chu)的(de)(de)分(fen)液(ye)罐或全(quan)廠火(huo)炬(ju)總(zong)(zong)管(guan)。③.裝(zhuang)置(zhi)內火(huo)炬(ju)總(zong)(zong)管(guan)一(yi)般布(bu)置(zhi)在(zai)主(zhu)管(guan)廊上層的(de)(de)邊緣(yuan)，或沿管(guan)廊柱成T形(xing)管(guan)架支(zhi)承(cheng)火(huo)炬(ju)總(zong)(zong)管(guan)。④.確定火(huo)炬(ju)總(zong)(zong)管(guan)位置(zhi)時...
氣(qi)(qi)(qi)力(li)輸送(song)(song)(song)（又稱氣(qi)(qi)(qi)流(liu)(liu)輸送(song)(song)(song)），即利(li)用(yong)氣(qi)(qi)(qi)流(liu)(liu)的能量，在密閉(bi)管(guan)道內沿氣(qi)(qi)(qi)流(liu)(liu)方(fang)向輸送(song)(song)(song)顆(ke)粒狀物料，是流(liu)(liu)態化技(ji)術的一(yi)種具體應(ying)用(yong)。氣(qi)(qi)(qi)流(liu)(liu)輸送(song)(song)(song)裝置（圖2.137）的結(jie)構(gou)簡(jian)單，操(cao)作方(fang)便(bian)，可作水平的、垂直的或(huo)傾斜方(fang)向的輸送(song)(song)(song)，在輸送(song)(song)(song)過程中還(huan)可同時(shi)進行物料的加熱、冷卻、輸送(song)(song)(song)和氣(qi)(qi)(qi)流(liu)(liu)分級等物理操(cao)作或(huo)某些化學操(cao)作。氣(qi)(qi)(qi)...
①.苯(ben)(ben)在常溫(wen)下為一種無色、有甜味的(de)透明液體，并具(ju)有強烈的(de)芳(fang)香氣味。苯(ben)(ben)可燃，有毒，也是一種致癌物質。由于(yu)苯(ben)(ben)的(de)揮(hui)發性(xing)大，暴露于(yu)空氣中(zhong)(zhong)很(hen)容(rong)易擴(kuo)散(san)。人(ren)(ren)和(he)動物吸(xi)入或皮膚接觸大量苯(ben)(ben)，會(hui)引起急(ji)性(xing)和(he)慢性(xing)苯(ben)(ben)中(zhong)(zhong)毒。長期吸(xi)入會(hui)侵(qin)害人(ren)(ren)的(de)神(shen)經系統，急(ji)性(xing)中(zhong)(zhong)毒會(hui)產生(sheng)神(shen)經痙攣甚至(zhi)昏迷(mi)、死(si)亡。在白血病患者(zhe)中(zhong)(zhong)，有...
①.按GB5044《職業(ye)性接(jie)觸毒物危害程度分級》的(de)規定(ding)來確定(ding)一種(zhong)介(jie)質是否為極度危害毒介(jie)質，見表2.27。②.除有(you)特殊需要外，極度危害介(jie)質的(de)管道應(ying)采用焊接(jie)連接(jie)。管道不(bu)宜(yi)理(li)地敷設，當工藝要求埋地敷設時，應(ying)有(you)監測(ce)泄漏(lou)、防(fang)止腐蝕、收(shou)集(ji)有(you)害流體等的(de)安(an)全措施。③.設置在(zai)安(an)全隔墻或隔板(ban)內...
①.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)管(guan)(guan)道(dao)(dao)的管(guan)(guan)道(dao)(dao)布置設計(ji)應逐段(duan)進行壓(ya)力降計(ji)算(suan)，管(guan)(guan)道(dao)(dao)應盡(jin)量(liang)短(duan)，彎頭應盡(jin)量(liang)少。②.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)管(guan)(guan)道(dao)(dao)的切(qie)斷閥(fa)采(cai)用球閥(fa)、閘閥(fa)和真(zhen)(zhen)(zhen)空(kong)(kong)(kong)蝶閥(fa)，需要調節的采(cai)用截止閥(fa)，排氣閥(fa)、排凈閥(fa)為球閥(fa)。③.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)閥(fa)的功能有兩類(lei)，一(yi)類(lei)是(shi)當(dang)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)系統停車時，需消除真(zhen)(zhen)(zhen)空(kong)(kong)(kong)，從外(wai)界(jie)引入(ru)氣體，閥(fa)門采(cai)用球閥(fa)；另一(yi)類(lei)是(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)系統工...
①.低(di)溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)配(pei)管(guan)(guan)(guan)(guan)需遵循(xun)普(pu)通管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)配(pei)管(guan)(guan)(guan)(guan)設計基本(ben)要(yao)求。②.低(di)溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)的布置(zhi)(zhi)要(yao)考(kao)慮(lv)整(zheng)條管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)有足夠(gou)的柔(rou)性，要(yao)充分(fen)利用管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)的自(zi)然(ran)補償。當設計溫(wen)度很低(di)又無法自(zi)然(ran)補償時，應(ying)設置(zhi)(zhi)補償器。③.低(di)溫(wen)介質管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)的布置(zhi)(zhi)在滿足管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)柔(rou)性下應(ying)使(shi)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)短(duan)，彎頭數(shu)量(liang)少，且應(ying)減少“液袋”。④.低(di)溫(wen)介質管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)間(jian)距應(ying)根據(ju)...
①.各規范對高(gao)溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)的定(ding)義可能各不相同(tong)。例如，根據SH3501《石(shi)油(you)化工有毒、可燃(ran)介(jie)質鋼制管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)工程施(shi)工及驗收(shou)規范》規定(ding)：低于-29℃的100％探傷，高(gao)于400℃的100％探傷。低于-29℃的管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)稱為低溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)，高(gao)于400℃的管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)稱為高(gao)溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)。②.高(gao)溫(wen)管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)配(pei)管(guan)(guan)(guan)(guan)需(xu)遵循普通管(guan)(guan)(guan)(guan)道(dao)(dao)(dao)配(pei)管(guan)(guan)(guan)(guan)設...
①.氫(qing)氧化(hua)鈉(na)(na)，俗稱燒堿(jian)、火(huo)堿(jian)、苛性鈉(na)(na)，為一(yi)種具(ju)有強腐蝕性的(de)(de)強堿(jian)。②.氫(qing)氧化(hua)鈉(na)(na)管(guan)道的(de)(de)配管(guan)設計(ji)需要遵循普通工(gong)藝(yi)管(guan)道布置的(de)(de)基本要求(qiu)。③.對于(yu)易受溫(wen)度影響的(de)(de)流體，氫(qing)氧化(hua)鈉(na)(na)（堿(jian)）、酸、苯等應在工(gong)藝(yi)管(guan)道和伴(ban)熱管(guan)道之間墊上一(yi)層(ceng)隔熱材料（如石(shi)棉(mian)帶），避免因伴(ban)熱線同工(gong)藝(yi)線接(jie)觸而產生(sheng)高溫(wen)點。④...
①.氰化氫(qing)(qing)(qing)標(biao)準(zhun)狀(zhuang)態下(xia)為液體。氰化氫(qing)(qing)(qing)易在(zai)(zai)空氣(qi)中均勻彌散，在(zai)(zai)空氣(qi)中可燃燒。氰化氫(qing)(qing)(qing)在(zai)(zai)空氣(qi)中的(de)含量達到5.6％～12.8％時，具有爆炸(zha)性。氫(qing)(qing)(qing)氰酸屬于劇毒類。②.氫(qing)(qing)(qing)氰酸管道應有坡度(du)，不得出現(xian)袋狀(zhuang)，應少用(yong)閥門(men)，避免死角(jiao)。③.氫(qing)(qing)(qing)氰酸取(qu)樣(yang)(yang)點(dian)設在(zai)(zai)易于取(qu)樣(yang)(yang)和能(neng)迅速撤離的(de)場所(suo)，取(qu)樣(yang)(yang)閥應用(yong)采(cai)樣(yang)(yang)鐵箱(xiang)...
