【正文】 件預(yù)計(jì)達(dá)到同行業(yè)中較好的水平。2)火災(zāi)和爆炸危險(xiǎn)LNG泄漏到地面并收集到某些地點(diǎn),可能引起火災(zāi)。(3)為減少汽車槽車卸車臺在裝卸作業(yè)中部分液化天然氣的泄漏量,端部設(shè)閥門操作,并且由于操作均在室外,有大氣流通,少量的泄漏會很快散失到大氣中去。建立健全的各項(xiàng)規(guī)章制度,如:崗位安全操作規(guī)程、防火責(zé)任制、崗位貴任制、日常和定期檢修制度,職工定期考核制度等。一旦報(bào)警發(fā)生,啟動(dòng)打印機(jī),打印報(bào)警時(shí)間和內(nèi)容d空溫式氣化器天然氣出口總管溫度與室外環(huán)境溫度之差大于5℃報(bào)警,大于10℃連鎖關(guān)閉相關(guān)LNG儲罐出口切斷閥。在生產(chǎn)流程中所有重要位置,依據(jù)相關(guān)規(guī)范要求均設(shè)置生產(chǎn)狀態(tài)監(jiān)控設(shè)施和檢測裝置,并在廠站控制室集中監(jiān)控,超出正常生產(chǎn)狀態(tài)時(shí)設(shè)置報(bào)警信號,警示生產(chǎn)調(diào)度人員采取必要的安全防范措施,保證安全生產(chǎn)。而常溫時(shí),天然氣密度遠(yuǎn)小于空氣密度,易擴(kuò)散。(2)調(diào)壓計(jì)量設(shè)備a調(diào)壓帶自動(dòng)切斷功能,當(dāng)調(diào)壓器前壓力過低或調(diào)壓器后壓力過高時(shí),自動(dòng)切斷。泄漏初期，氣化率很高，179。 絕熱及防腐本站LNG進(jìn)液總管和LNG儲罐出液總管及支管需做保冷絕熱，碳鋼工藝管道需做防腐處理。4）密封墊片采用C型不銹鋼金屬纏繞墊片，金屬材料為06Cr19Ni10，非金屬材料為PTFE。（7）操作和檢查位置應(yīng)從操作通道可以接近或可見，而不需要額外的平臺或梯子。（3）站內(nèi)低溫工藝管道采用低溫不銹鋼，材質(zhì)為06Cr19Ni10,其技術(shù)性能應(yīng)符合現(xiàn)行的國家標(biāo)準(zhǔn)《流體輸送用不銹鋼無縫鋼管》(GB/T149762012)的規(guī)定。另外再設(shè)1臺水浴式氣化器作為備用，為冬季時(shí)防止空溫式氣化器不能完全除霜時(shí)，承擔(dān)氣化工作。根據(jù)項(xiàng)目的規(guī)模特點(diǎn)選用立式真空罐，選用依靠容器本身的壓力擠壓的方法對外排液，不需要輸液泵排液，操作簡便、可靠性高；安裝方便、成本較低。外罐應(yīng)配置泄放裝置和其他裝置以釋放內(nèi)壓。 產(chǎn)品價(jià)格預(yù)測液化天然氣價(jià)格分析根據(jù)目前國內(nèi)外形式及液化天然氣供需情況，上游天然氣價(jià)格有一定幅度上調(diào)，本項(xiàng)目液化天然氣進(jìn)站價(jià)格（含稅）179。煤改氣工程全部完工后將減少燃煤量4000噸。（6）堅(jiān)持科學(xué)態(tài)度，積極采用新工藝、新技術(shù)、新材料、新設(shè)備，既要體現(xiàn)技術(shù)先進(jìn)、經(jīng)濟(jì)合理又要安全可靠。XX市XXX鄉(xiāng)“煤改氣”LNG氣化站工程可行性報(bào)告書目錄前言............................................................................................51總論.........................................................................................7 ........................................................................7 ........................................................................7 ........................................................................7 ................................................................8 ........................................................9 、規(guī)定及標(biāo)準(zhǔn)............................102市場預(yù)測................................................................................12 供氣現(xiàn)狀........................................................................12 燃?xì)猬F(xiàn)狀存在問題........................................................12 天然氣需求預(yù)測............................................................12 產(chǎn)品價(jià)格預(yù)測................................................................12 市場風(fēng)險(xiǎn)........................................................................123 LNG氣化站及出站管道工藝設(shè)計(jì).........................................14 工藝方案........................................................................13 工藝流程...............................................................13 主要設(shè)備選型.......................................................13 ...................................16 概述....................................................................16 設(shè)計(jì)規(guī)定.............................................................16 裝置布置的一般要求.........................................16 通道及道路.........................................................17 道路布置原則.....................................................17 道路布置說明.....................................................17 低溫管道設(shè)計(jì).....................................................17 LNG氣化站圖片..........................................................19 出站后工藝管道............................................................204 消防設(shè)計(jì)專篇.......................................................................27 ........................................................................5 ........................................................................5 ....................................................................5 ........................................................9 ........................................................................5 ................................................................9 供電系統(tǒng)設(shè)計(jì).....................................................16 危險(xiǎn)環(huán)境內(nèi)電氣及儀表設(shè)備的選擇.................16 場站內(nèi)線纜及其敷設(shè)方式的選擇.....................17 防雷及接地裝置的設(shè)計(jì).....................................17 ........................................................................5 ................................................................................5 ................................................................5 ...............................................................5 ........................................................................5 .........................................................................5 ................................................................................55 環(huán)境保護(hù)專篇.......................................................................41 ........................................................................5 ........................................................................5 .............................................................5 運(yùn)行過程主要污染物分析.................................16 施工過程主要污染物分析.................................16 .................................................................9 ................................................5 ................................................9.......................................................................96 勞動(dòng)衛(wèi)生專篇.......................................................................44 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