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标题:
汽机付值值班试题
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作者:
华电之声
时间:
2008-4-25 10:40
标题:
汽机付值值班试题
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;"><font face="Times New Roman">1.<span style="FONT: 7pt "Times New Roman";"> </span></font></span></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">凝汽器真空下降的原因？处理原则？</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 70.45pt; TEXT-INDENT: -52.5pt; mso-para-margin-left: 1.71gd; mso-char-indent-count: -5.0;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">答：原因：</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）凝汽凝汽器循环水中断或减少</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>2</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）轴封汽压力下降</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>3</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）射抽运正常</span><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 70.45pt; TEXT-INDENT: -31.5pt; mso-para-margin-left: 3.71gd; mso-char-indent-count: -3.0;"><span lang="EN-US"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）凝汽器热井水位过高</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>5</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）凝汽器或真空运行管道漏空气</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 38.95pt; TEXT-INDENT: -21pt; mso-para-margin-left: 1.71gd; mso-char-indent-count: -2.0;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">处理原则：</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）当凝汽器真空下降</span><span lang="EN-US"><font face="Times New Roman">1Kpa</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">是，启动备用射抽，报告值班长并查明原因，如急剧下降到</span><span lang="EN-US"><font face="Times New Roman">85Kpa</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">时，发出“警报”、“注意”、“减荷”信号。并按真空每下降</span><span lang="EN-US"><font face="Times New Roman">10%</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">减去</span><span lang="EN-US"><font face="Times New Roman">10%</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">的额定负荷，凝汽器真空降至</span><span lang="EN-US"><font face="Times New Roman">60Kpa</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">时，负荷减至零</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>2</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）凝汽器真空降至</span><span lang="EN-US"><font face="Times New Roman">60Kpa</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">以下，连锁跳机保护应动作停机。如连锁未投，应立即进行不破坏真空紧急停机，并发出“注意”、“急停”信号，切除Ⅰ、Ⅱ级减温减压器及自动投入装置。</span><span lang="EN-US"><font face="Times New Roman"> 3</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）凝汽器真空下降时，因注意低压缸排汽温度升高情况，在带负荷运行中不应超过</span><span lang="EN-US"><font face="Times New Roman">70</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">度（空负荷不应超过</span><span lang="EN-US"><font face="Times New Roman">120</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">度），如低压缸排汽温度达</span><span lang="EN-US"><font face="Times New Roman">70</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">度时，应投入低负荷自动喷水装置，降低低压缸排汽温度</span><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;"> </span>4</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: "Times New Roman"; mso-ascii-font-family: "Times New Roman";">）当凝汽器真空下降时，检查当时机组有否影响真空下降的操作，如有操作应立即恢复到原来状况。</span></p>
作者:
追风无痕
时间:
2008-4-25 14:50
终于看完了！看后不回不够意思！回了吧又有嫌疑！！！唉。。。。。。
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