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<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">81</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、锅炉低负荷运行稳燃措施</span><span lang="EN-US"><font face="Times New Roman">? </font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答</span><span lang="EN-US"><font face="Times New Roman"> : </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">当锅炉负荷低于</span><span lang="EN-US"><font face="Times New Roman">150MW</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">运行时,应视作低负荷运行,在低负荷运行期间,必须注意:</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">加强对仪控自动装置运行情况的监视,若自动不灵敏,应及时改为手动,并做好记录。加强对炉膛火焰、负压、汽温、汽压及功率的监视,做好事故预想,防止炉膛热负荷较低而熄火。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行应及时了解入炉煤种,挥发份不应小于</span><span lang="EN-US"><font face="Times New Roman">27%</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。如遇天气不好,要求加仓煤尽量干燥,保证入炉煤全水份小于</span><span lang="EN-US"><font face="Times New Roman">17%</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行期间应及时通知油泵值班员,如遇油压自动调节不稳定,应及时切至手动调节,确保油压在</span><span lang="EN-US"><font face="Times New Roman">3.5MPa</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">左右和油枪随时可投用。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行锅炉采用滑压运行方式。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">锅炉低负荷运行期间,如遇燃烧不稳定应及时投油,不得冒险节油。投油前应注意磨煤机运行层次,并应保证油枪有</span><span lang="EN-US"><font face="Times New Roman">3/4</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">火焰证实。防止投油不当发生</span><span lang="EN-US"><font face="Times New Roman">MFT</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">6.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行期间,氧量应控制在</span><span lang="EN-US"><font face="Times New Roman">6%,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">磨煤机一次风调节挡板自动调节不正常时,可用手动调节或采用停运一台磨煤机方法控制一次风量不要过大。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">7.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">根据负荷确定磨煤机运行台数。若当时负荷需要三台磨煤机运行时,应保持有二台相邻的磨煤机运行,且给煤机负荷应></span><span lang="EN-US"><font face="Times New Roman">50%</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">,另一台给煤机作为调节。若负荷低于</span><span lang="EN-US"><font face="Times New Roman">50%</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">,可采用二台相邻磨煤机运行,禁止磨煤机隔层运行。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">8.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行期间若减负荷,应控制减负荷速率小于</span><span lang="EN-US"><font face="Times New Roman">1.1%/min</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">9.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行磨煤机内煤量相对较少,振动较大,应通知巡检加强对磨煤机的检查。发现异常应及时调整或调换磨煤机运行。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">10.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行时,禁止锅炉受热面吹灰。</span><span lang="EN-US"><font face="Times New Roman"> 11.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">低负荷运行时,应做好事故预想,如发生锅炉熄火,则按照</span><span lang="EN-US"><font face="Times New Roman">MFT</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">原则进行处理。</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;"><span lang="EN-US"><font face="Times New Roman">82</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、锅炉汽水共腾如何处理?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答</span><span lang="EN-US"><font face="Times New Roman"> : 1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、现象</span><span lang="EN-US"><font face="Times New Roman">:<span style="mso-spacerun: yes;"> </span></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴、汽包水位计水位发生急剧波动,看不清水位。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵、过热蒸汽温度急剧下降,严重时蒸汽管内发生水冲击。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶、饱和蒸汽含盐量增大。</span><span lang="EN-US"><font face="Times New Roman"> 2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、处理</span><span lang="EN-US"><font face="Times New Roman">:<span style="mso-spacerun: yes;"> </span></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴、减少燃料量,降低锅炉蒸发量。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵、开大连排调节门,增加排污量。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶、关小或关闭减温水,维持汽温正常</span><span lang="EN-US"><font face="Times New Roman">. </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷、通知汽机开启主汽门前疏水。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸、汇报值长,通知化学值班,加强对炉水分析,并按分析结果进行排污,改善炉水品质。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑹、在炉水品质未改善前</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">应联系机电值班稳定负荷。不允许增加锅炉负荷。</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;"><span lang="EN-US"><font face="Times New Roman">83</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、锅炉炉膛严重结渣如何处理?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答</span><span lang="EN-US"><font face="Times New Roman"> : 1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、现象:</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴、过、再热汽温明显上升,各壁温明显上升或超限。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵、减温水量大幅度增加。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶、各段烟温及排烟温度有所升高,炉膛出口两侧温差可能增大。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷、烟气氧量偏小或引、送风机电流上升。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸、火焰颜色呈白并刺眼,炉膛温度升高。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑹、经减负荷或燃烧调整,上述现象仍不能消失。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑺、当炉膛掉大焦时,炉膛压力晃动,燃烧不稳,有剧烈晃动。</span><span lang="EN-US"><font face="Times New Roman"> 2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、处理:</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴、锅炉运行中应中加强对减温水量变化,喷燃器摆角变化,炉膛出口温度,各段壁温的监视,发现异常应及时分析。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵、如发现汽温升高或减温水量增大,应及时检查炉底水封溢水及捞渣箱水位应正常,否则应调整正常。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶、发现喷燃器摆角卡牢,应及时联系检修处理。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷、就地检查炉膛有否结渣,如结渣导致减温水大幅度增加或过热器,再热器管壁超温时,汇报值长,适当降低锅炉负荷运行,并加强对炉膛吹灰。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸、经上述处理无效时,应申请停炉处理。</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;"><span lang="EN-US"><font face="Times New Roman">84</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、锅炉省煤器泄漏如何处理?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答</span><span lang="EN-US"><font face="Times New Roman"> : 1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、现象:⑴汽包水位下降,给水流量不正常地大于蒸汽流量。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵省煤器附近有泄漏声。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶省煤器灰斗有漏水或水迹现象。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷省煤器两侧烟温差增大,空预器两侧出口风温差增大</span><span lang="EN-US"><font face="Times New Roman">.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">省煤器、空预器出口烟温下降或摆动。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸炉膛负压偏正,在相同的负荷下引风机入口动叶开度增大,引风机电流增大。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑹机组补水量增加。</span><span lang="EN-US"><font face="Times New Roman"> 2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、处理:</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴汇报值长、集控长,,将锅炉主控切至手动,。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵若泄漏不严重,,能维持汽包水位在正常范围,允许锅炉短时运行,锅炉改为滑压运行,适当降低汽包压力,加强泄漏的监视。并及早申请停炉。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶若泄漏严重,加强进水无法维持汽包水位,达到紧急停炉条件应紧急停炉。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷停炉后,适当增加给水流量,维持汽包水位,同时禁止开启省煤器再循环门。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸停炉后不能维持汽包水位时,停止锅炉上水,监视炉水泵运行参数,如炉水泵无法为维持运行应及时停炉水泵运行。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑹增加对空预器吹灰。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑺停炉后,保留一组送、引风机运行,如需抢修则锅炉按照强制冷却要求控制冷却速度。</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;"><span lang="EN-US"><font face="Times New Roman">85</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、锅炉烟道发生二次燃烧如何处理?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答</span><span lang="EN-US"><font face="Times New Roman"> : 1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、现象:</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴烟气温度急剧上升,氧量表指示偏小。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵烟道及炉膛负压剧烈变化,一、二次热风温度和排烟温度不正常地升高。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶烟道门孔或不严密处有火星或冒烟。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷烟囱冒黑烟。</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸如空预器发生二次燃烧时,外壳有温度辐射感受或烧红,严重时预热器发生卡涩。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">、处理:</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑴排烟温度不正常地升高,应立即检查各部烟温,判断再燃烧发生的区域,调整燃烧,投入该区域的蒸汽吹灰。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑵汇报值长</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">降低负荷</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">关闭热风再循环门</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">运行方式切至“锅炉基本自动”。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑶经上述处理无效,排烟温度仍不能控制,大幅度升高时,汇报值长,紧急停炉。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑷停止送、引风机,关闭所有风门和烟气挡板,严禁通风</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">若空预器着火,应立即投用灭火装置用水灭火。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">⑸待火熄灭后</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">停止灭火水和吹灰器</span><span lang="EN-US"><font face="Times New Roman">,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">烟温下降至正常稳定后,方可打开入孔门,检查有无火星和积灰。</span><span lang="EN-US"><font face="Times New Roman">
</font></span></p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">⑹如自燃后积灰严重</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">,</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">应设法清扫积灰或冲洗干净后再启动。</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">
</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">⑺引风机、送风机启动后遂渐开启挡板,排烟温度无升高现象时方可重新点火。</span> |
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