邹县四期工程烟气脱硝方案简述

<p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体;"><strong>邹县四期工程烟气脱硝方案简述<span lang="EN-US"><p></p></span></strong></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: 黑体;"><strong>&nbsp;<p></p></strong></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span style="FONT-FAMILY: 黑体;"><strong>洪郁华<span lang="EN-US"><p></p></span></strong></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span style="FONT-FAMILY: 黑体;"><strong>（西北电力设计院 <span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;</span>陕西 <span style="mso-spacerun: yes;">&nbsp;&nbsp;</span>西安 710032）<p></p></span></strong></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US"><font face="宋体"><strong>&nbsp;<p></p></strong></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span style="FONT-FAMILY: 楷体_GB2312;"><strong>【内容提要】简介火力发电厂<span lang="EN-US">SCR烟气脱硝法，结合邹县四期工程分析同步装设与预留脱硝装置的方案并进行技术经济比较。<p></p></span></strong></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span style="FONT-FAMILY: 楷体_GB2312;"><strong>【关键 词】烟气脱硝，<span lang="EN-US">SCR，预留方案<p></p></span></strong></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span lang="EN-US" style="FONT-FAMILY: 楷体_GB2312;"><strong>&nbsp;<p></p></strong></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly;"><strong><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">前言：</span><span lang="EN-US" style="FONT-FAMILY: 黑体;"><p></p></span></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">根据我国大气环境保护、治理的政策和需要，继燃煤电站陆续同步建设烟气脱硫装置后，《火电厂大气污染物排放标准》（</span><span lang="EN-US" style="FONT-FAMILY: 黑体;">GB13223-2003</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">）要求</span><span style="FONT-FAMILY: 黑体;">“</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">第</span><span lang="EN-US" style="FONT-FAMILY: 黑体;">3</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">时段（</span><span lang="EN-US" style="FONT-FAMILY: 黑体;">2004</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">年</span><span lang="EN-US" style="FONT-FAMILY: 黑体;">1</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">月</span><span lang="EN-US" style="FONT-FAMILY: 黑体;">1</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">日起）火力发电锅炉须预留烟气脱除氮氧化物装置空间</span><span style="FONT-FAMILY: 黑体;">”</span><span style="FONT-FAMILY: 黑体; mso-hansi-font-family: 宋体;">。本文就<span style="COLOR: black;">华电国际邹县发电厂四期工程的脱硝方案进行了论述和技术经济比较。</span></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 黑体;"><p></p></span></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">华电国际邹县发电厂位于山东省邹城市西南</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">10</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">公里的唐村镇，是山东电力网的主力电厂，也是一座大型矿口电厂。电厂一期、二期工程共装有四台</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">300MW</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">机组</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">(</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">改造后的实际出力为</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">4x335MW)</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">，已分别于</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1985</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">年～</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1989</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">年建成投产。三期工程装设两台</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">600MW</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">机组，分别于</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1997</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">年</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">月和</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">11</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">月投产。四期扩建工程安装</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">2</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">台</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1000MW</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">超超临界汽轮发电机组，<span style="COLOR: black;">采用招标方式确定了三大主机：锅炉为东方锅炉（集团）股份有限公司、</span></font></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: &quot;Times New Roman&quot;;">BHK</span><span style="COLOR: black; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">、</font></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: &quot;Times New Roman&quot;;">BHDB</span><span style="COLOR: black; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">的产品；汽轮机为东方汽轮机厂、日立的产品；发电机为东方电机股份有限公司的产品。</font></span></strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></p>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">烟气脱硝方案</span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1.1<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">邹县四期工程已采取的措施</span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15pt; tab-stops: 23.25pt; mso-line-height-rule: exactly; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">在电力行业控制</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NO_x</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">排放的方法，目前主要有炉内低氮燃烧技术和烟气脱硝技术，前者是抑制和减少锅炉燃烧过程中的</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NO_x</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">产生和排放，后者是从锅炉排放的烟气中脱除</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NOx</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">。四期工程锅炉招标时已要求锅炉采取低</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NOx</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">燃烧器加燃尽风的系统并保证</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NOx</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">的排放浓度在</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">350mg/Nm³</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">以下，从一定程度上减少了</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NOx</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">的排放量。如果要在此基础上进一步降低</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">NOx</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">的排放量，则必须采取烟气脱硝的方法，例如</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">SCR</span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">法。</span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm 270.0pt; mso-line-height-rule: exactly;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1.2<span style="mso-spacerun: yes;">&nbsp; </span>SCR</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">法脱硝方案</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><span style="mso-tab-count: 1;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><p></p></span></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">SCR</span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">工艺系统主要包括：</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">SCR</span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">反应器及催化剂；氨制备、存储系统；氨喷射系统和脱硝公用系统等。</span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1.2.1<span style="mso-spacerun: yes;">&nbsp; </span>SCR</span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">反应器及催化剂</span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15pt; tab-stops: 1.0cm; mso-line-height-rule: exactly;"><strong><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p>

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</p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>&nbsp;<p></p></strong></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><line id="_x0000_s1026" to="49.4pt,21.95pt" from="49.4pt,-4.3pt" style="Z-INDEX: 1; LEFT: 0px; POSITION: absolute; TEXT-ALIGN: left; flip: y;"><stroke endarrow="block"><strong></strong></stroke></line><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>&nbsp;<p></p></strong></span></p><br clear="all" style="mso-ignore: vglayout;"/><table cellspacing="0" cellpadding="0" border="1" style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN-LEFT: 55.05pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-alt: solid windowtext .5pt; mso-table-layout-alt: fixed;"><tbody><tr><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; 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LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>3<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>3<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>3<p></p></strong></span></p></td></tr><tr><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 88.55pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>2<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>2<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>2<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>New 2<p></p></strong></span></p></td></tr><tr><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 88.55pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>1<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>1<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>New 1<p></p></strong></span></p></td><td valign="top" width="118" style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 88.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><line id="_x0000_s1027" to="109.1pt,15.7pt" from="76.85pt,15.7pt" style="Z-INDEX: 2; LEFT: 0px; POSITION: absolute; TEXT-ALIGN: left; flip: y; mso-position-horizontal-relative: text; mso-position-vertical-relative: text;"><stroke endarrow="block"><strong></strong></stroke></line><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><strong>New 1<p></p></strong></span></p></td></tr></tbody></table><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>0<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>3<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>6<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>9<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>12<span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;">年</span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></font></strong></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><strong><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">图</font></span><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;">1.1<span style="mso-spacerun: yes;">&nbsp; </span></span><span style="mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><font face="宋体">催化剂更换方法示意图</font></span></strong><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><p></p></span></p>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.2<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">氨制备、存储系统</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">氨气有两种制备方法：直接法和间接法。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">直接法通过液氨或氨水气化制取氨气，液态</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">必须存放在圆形或圆柱形压力罐内，置放在地面或地下，存储罐的设计容量可供两星期使用。电厂存储罐的尺寸在</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">50m³</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">～</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">200m³</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">之间。</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的储放量超过</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">3</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">吨就必须对其安全性做出评价，即分析可能产生的所有偶发事件及后果。运行人员和电厂应按照目前的技术水平采取所有的安全措施。因此市区内的电厂必须建造地下储罐，尽管储放容量可能不需要这样做。地下储罐需要涂上防腐层（沥青），而地面储罐需要特殊的热反射层。液态</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">采用压力罐车运送，不足</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1000</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">升的氨可用钢瓶或压力罐装运。建议采用两个罐，防止其中一个泄漏，并保证在一个罐维修时</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器不间断。储罐、泵房及罐车都装配有喷洒系统，以消除任何泄漏的氨气。另外应将储罐放在大型疏放槽内，疏放槽的大小必须至少能容纳最大储罐的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2/3</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">体积。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">间接法即水解干尿素法，通过干尿素水解制取氨气，其工艺流程大致如下：运输卡车首先把尿素倾倒到一个倾卸罐里储存，从倾卸罐出来的尿素进入一个混合箱，在混合箱里干尿素和利用循环泵打入的热水混合，在搅拌器的作用下逐渐溶解，等尿素完全溶解后，用泵把尿素溶液打入溶液储罐储存。从储罐出来的溶液在泵的作用下经过热交换器吸热加热到反应温度后进入水解槽，热交换器的热量来源为水解后的尿素残液带出的余热，尿素溶液在水解槽内水解，产生氨气，其化学反应方程式如下：</span></strong></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font>&nbsp;[Post=100]</p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><strong>&nbsp;<p></p></strong></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; TEXT-ALIGN: center; tab-stops: 1.0cm;"><strong><span style="mso-ascii-font-family: 'Times New Roman';"><font face="宋体">（</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₂</span><span style="mso-ascii-font-family: 'Times New Roman';"><font face="宋体">）</font></span>_{<span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2</span>}<span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">CO+H₂O=2NH₃+CO₂<p></p></span></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><strong>&nbsp;<p></p></strong></span></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">为了释放残液里的氨气，采用在水解槽底部通过蒸汽的方法，溢出的气体经过除雾器除去水分，压力控制阀调压后，送到稀释处。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">两种方法本期工程所需场地均不大于</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">400m²</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">，电厂可以根据实际情况进行选择。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.3<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">氨喷射系统</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">在选择性催化过程中，需要一个</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">喷雾和稀释空气系统来提供</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">、空气的混合物。此系统包括的部件有：</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">喷雾器、稀释空气风机、</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">和空气和混合器、管道、阀门、附件、仪表和控制。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">与热空气混合并稀释后通过以网格型布置在整个烟道中的喷嘴把</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃/</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">空气混合物均匀地喷到烟气中。要达到最佳的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NOx</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">脱除率并避免</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的逃逸，</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的分布必须满足催化剂入口处</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NO</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的浓度分布要求。根据</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NOx</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的分布，应单独调整每一个喷嘴的喷氨量。此外，为了使氨与烟气在</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器前有较长的混合区段，应将氨从催化剂上游远方喷入，该处的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NOx</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">浓度及烟气速度分布要均匀，可通过导板或增加脉冲气流的扩散改善混合的均匀度。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.4<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝公用系统</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.4.1<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝工艺用水</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">（</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）用水种类</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝工艺系统用水按用途和水源可分为两种，即：</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">a</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）脱硝工业用水</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">主要用于风机、泵体的冷却、脱硝场地的冲洗以及空调、采样等。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">b</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）生活、消防用水</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">主要为职工生活用水，脱硝系统消防用水以及冲洗和绿化用水等。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">（</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）脱硝系统用水量和水质情况</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝系统工业用水水质要求同电厂工业水相同，直接来自电厂工业水系统，水量不大。生活、消防用水按照有关设计规定全厂统筹考虑。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.4.2 <span style="mso-spacerun: yes;">&nbsp;</span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝系统用汽</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">脱硝系统用汽主要用于水解槽、</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">反应器吹灰等。用汽量不大，可直接从辅助蒸汽母管抽取。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.4.3<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝系统用气</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝系统需要仪用压缩空气，向脱硝装置内的气动仪表，控制设备和热工艺表检修提供无油、清洁、干燥的压缩空气。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 23.25pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝系统所需的各种吹扫风由厂用压缩空气系统提供，氨系统吹扫所用氮气由厂化学站提供。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">密封空气（如果需要）由密封风机提供。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.5<span style="mso-spacerun: yes;">&nbsp; </span>SCR</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">对电站运行的影响</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.5.1<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">氨逃逸及其对下游设备的影响</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">由于氨与</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NOx</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">的不完全反应，会有少量的氨（泄漏量</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"> &lt; 5ppm</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）与烟气一道逃逸出反应器，这种情况称之为氨逃逸。氨逃逸可导致：</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">a</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">）生成硫酸氢氨沉积在催化剂和空气预热器上，造成催化剂中毒和空预器的腐蚀；</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">b</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">）造成</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">FGD</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">废水及空气预热器清洗水中含</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">；</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">c</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">）增加飞灰中的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">NH₃</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">化合物，改变飞灰的品质。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1.2.5.2<span style="mso-spacerun: yes;">&nbsp; </span>SO₂</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">转换成</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SO₃</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">对尾部烟道设备的影响</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">由于在催化反应器中</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SO₂</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">将转化成</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SO₃,</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">除了生成硫酸氢氨以外</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">,</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器下游的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SO₃</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">也会有明显的增加，使得烟气露点温度提高</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">,</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">并在空气预热器冷端受热面上凝结成硫酸，从而对受热面造成腐蚀。有厂商认为需将空气预热器由三段式改为两段式结构，冷端传热元件需由低合金耐腐蚀钢改为搪瓷换热元件，但搪瓷一旦有气眼或局部脱落，腐蚀将会加剧；也有厂商认为对空预器影响不大。</font></span></strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></p><p>&nbsp;</p>[/Post]

<p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">预留的方案</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2.1<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">方案一</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">本预留方案留出空预器上方安装</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器的位置，现阶段采用烟道连接。待今后实施烟气脱硝时，将这部分烟道拆除，同时加高空预器钢架，安装</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">反应器。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">在工程设计中需作如下考虑：</span></strong></font></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><font face="宋体"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></strong></font>&nbsp;[Post=100]</p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman';">）</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">空预器处桩位、基础和钢架的设计，考虑将来安装的反应器和催化剂的荷载；</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman';">）</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">厂区内预留氨制备、存储场地～</span></font><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">400m²</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">；</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">3</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman';">）</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">脱硝装置阻力对引风机选型的影响；</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">各厂家介绍的</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器的本体阻力差别较大，在</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">300</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">～</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1000Pa</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">间，反应器进出口烟道及附件阻力按</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">300Pa</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">考虑，则烟气脱硝系统总阻力将增加</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">600</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">～</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">1300Pa</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">。如果引风机选型暂不考虑脱硝装置的阻力，今后要安装脱硝装置时就需重新核算引风机，当阻力增加不大时，有可能采用同一型号引风机，但要更换叶片和配套电动机；否则就要考虑拆卸和基础是否适用的问题，费用将比新建高；若考虑其阻力，在脱硝装置未投运时，引风机长期处于低效率工作区，经济性较差。如果采用动调风机，将比静调风机略好。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">4</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman';">）</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">旁路烟道问题。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="2" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">脱硝最佳反应温度在</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">300</span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">多度，当低负荷时，正常烟温若达不到此温度，就需从省煤器接旁路烟道，上设调节风门（此风门磨损严重）。若不考虑同期上旁路烟道，现阶段受热面的布置也需考虑旁路烟道接口，否则将来不易安装；若考虑同期上旁路烟道，旁路烟道风门为常闭，但风门关闭不严会有漏风。</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; tab-stops: 1.0cm;"><strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">2.2<span style="mso-spacerun: yes;">&nbsp; </span></span><font face="宋体"><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;">方案二</span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></font></strong></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: normal; tab-stops: 1.0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><strong><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">方案二与方案一相比，引风机的压头考虑脱硝装置的阻力，并考虑旁路烟道，现阶段即将</font></span><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';">SCR</span><span style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 宋体;"><font face="宋体">反应器安装就位，但不填装催化剂。其它与方案一相同。</font></span></strong><span lang="EN-US" style="FONT-FAMILY: 'Times New Roman';"><p></p></span></p>[/Post]

<p>3 经济性分析 <br/>3.1 投资分析（一台炉） <br/>现阶段进口脱硝装置的初投资费在150～250元/kW左右（催化剂进口），若按190元/kW计，则每台炉脱硝装置总投资费用约为1.9亿元，此部分费用包括脱硝外部系统造价，不包括安装费用及引风机等的附加费用。催化剂的费用约占总投资的30%～40%。整个脱硝装置增加的锅炉钢架重量约2000t，反应器的重量在1100t左右。 <br/>由于安装脱硝装置，烟气侧阻力增加约600～1300Pa，若按800Pa计，使得引风机的压头和电功率增加近22%，约增加投资270万元。 <br/>另外，由于目前没有脱硝装置压缩空气的详细用量，不知是否需要改造空压机系统和厂化学站系统。 <br/>根据脱硝装置和钢结构增加的重量，估计设备基础增加的费用约为250万元。计算结果和经济比较见下表： </p><p>

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</p><p>3.3 年费用比较 <br/>采用最小年费用比较法，计算公式如下： <br/>A=P·I (1+I)n/((1+I)n-1)+R+S=0.08549P+R+S<br/>A--年费用 P--初投资 R--年运行费（含电费、检修维护费） <br/>n—经济生产年（20年） I--年利率（贷款）取0.0576<br/>S--系统费用，此处取0。 <br/>综合以上各部分，单台机组年费用比较见表3.3 -1。 </p><p>表3.3 -1 年费用比较表 </p><div align="center"><table cellspacing="0" cellpadding="0" border="1"><tbody><tr><td width="141" rowspan="2"><br/>项 目 </td><td width="47" rowspan="2"><p align="center">单位 </p></td><td width="157" colspan="2"><p align="center">上脱硝装置 </p></td><td width="112" rowspan="2"><p align="center">预留方案1</p></td><td width="110" rowspan="2"><p align="center">预留方案2</p></td></tr><tr><td width="78"><p align="center">催化剂寿命4年 </p></td><td width="78"><p align="center">催化剂寿命10年 </p></td></tr><tr><td width="141"><p>初投资年费用 </p></td><td width="47"><p align="center">万元 </p></td><td width="157" colspan="2"><p align="center">0.08549×（21520-7600） </p></td><td width="112"><p align="center">0.08549×1550</p></td><td width="110"><p align="center">0.08549×4800</p></td></tr><tr><td width="141"><p>年耗电费 </p></td><td width="47"><p align="center">万元 </p></td><td width="157" colspan="2"><p align="center">110.88</p></td><td width="221" colspan="2" rowspan="3"><p align="center">0</p></td></tr><tr><td width="141"><p>催化剂费用 </p></td><td width="47"><p align="center">万元 </p></td><td width="78"><p align="center">1900</p></td><td width="78"><p align="center">760</p></td></tr><tr><td width="141"><p>氨的成本费用 </p></td><td width="47"><p align="center">万元 </p></td><td width="157" colspan="2"><p align="center">412.3</p></td></tr><tr><td width="141"><p>氮氧化物排放收费 </p></td><td width="47"><p align="center">万元 </p></td><td width="157" colspan="2"><p align="center">103.95</p></td><td width="221" colspan="2"><p align="center">415.8</p></td></tr><tr><td width="141"><p>年费用总计 </p></td><td width="47"><p align="center">万元 </p></td><td width="78"><p align="center">3717.2</p></td><td width="78"><p align="center">2577.2</p></td><td width="112"><p align="center">548.3</p></td><td width="110"><p align="center">826.2</p></td></tr><tr><td width="141"><p>二方案年费用差 </p></td><td width="47"><p align="center">万元 </p></td><td width="78"><p align="center">3168.9</p></td><td width="78"><p align="center">2028.9</p></td><td width="112"><p align="center">0</p></td><td width="110"><p align="center">277.9</p></td></tr></tbody></table></div><p>注： 1．电费按成本价0.12元/kWh计算， <br/>2．按年利用小时数5500h计算。 <br/>3．预留方案中，将来上脱硝装置时如需更换引风机，费用将大于引风机初投资。 </p>

<p>4&nbsp;结论 <br/>根据上述分析，每台炉烟气脱硝的一次性投资约为2亿元（按进口脱硝装置投资费190元/kW计算），年运行费用约为2577.2万元（催化剂寿命按10年计算），而年NOx排放收费仅415.8万元。此外，锅炉通过采用低氮燃烧技术后，要求锅炉投标厂保证NOx的排放量在350mg/Nm3以下，已满足大气污染物排放标准GB13223-2003规定的≤400mg/Nm3的要求，故邹县四期工程最终采用了预留方案一： <br/>1）锅炉钢架深度为74.8m。空预器处桩位、基础和钢架的设计考虑了将来安装反应器和催化剂的荷载； <br/>2）厂区内预留氨制备、存储场地； <br/>3）引风机采用静叶可调轴流式，未考虑脱硝装置阻力； <br/>4）锅炉在低负荷时烟温仍可达到300多度，因此未设省煤器旁路； <br/>5）空预器仍采用三段式结构，协议要求厂商设计时考虑装设脱硝装置后更换低温段传热元件（搪瓷）时不影响空预器的整体布置、整体结构和性能。 </p><p></p><p></p><p>作者简介： <br/>洪郁华（1974－），女，上海市人，本科，高级工程师，主要从事大型火力发电厂的热机专业设计工作。<br/>联系电话：029-88358266&nbsp;传真：029-88358232&nbsp;E-mail：<a href="mailto:hongyh@NWEPDI.com">hongyh@NWEPDI.com</a></p><p></p>

<p>终于找到了，谢谢！</p>

<p>看一下吧</p>

谢谢

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