【填空题】
7. 1号机做抽汽逆止门试验时___、___、___逆止门不做。
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答案
四抽|高排|四抽至小机
解析
暂无解析
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【填空题】
8. 1号机闭式水母管压力小于___MPa或运行闭式水泵___时备用闭式水泵自启动。
【填空题】
9. 1号机抽汽逆止阀活动试验试验条件:1) 经值长同意,联系___人员到场,2) 检查确认机组___正常,3) 各加热器运行正常,正常___自动调节良好。
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10. 1号发电机在并网后,高压缸进、出口压力比低时,将造成高压___损坏,因此设置高排___保护。我厂为调节级压力与高缸排汽压力比,___手动停机。
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11. 1号机除氧器一共分为五个液位开关,高Ⅰ水位___,高Ⅱ水位___mm,高Ⅲ水位 ___ mm,低Ⅰ水位___ mm,低Ⅱ水位___。分别动作于报警、报警、事故、报警、事故。
【填空题】
12.1号机冲转前应投入___冷油器 , ___冷却器, ___油冷却器。
【填空题】
13. 1号机打闸以后___油泵联锁启动。
【填空题】
14.1号机DEH、TSI 系统故障,致使一些重要参数无法___,不能维持机组运行时,应___故障停机。
【填空题】
15.在做凝汽器真空严密性试验过程中,凝汽器压力每分钟下降速度超过___,应立即停止试验并投入真空泵运行,维持___真空。
【填空题】
汽轮发电机组任一轴承断油、冒烟或任一轴承金属温度___℃、或推力瓦金属温度达___℃时应立即破坏机组真空,紧急停机。
【填空题】
17. 1号机主、再热蒸汽温度异常时,应迅速采取措施恢复汽温至___,在处理过程中,若汽温在10分钟内急速下降超过___℃应故障停机。
【填空题】
18.在超速试验中,当汽机转速达___rpm 而保护未动作,应立即手动___,检查汽机进汽已___,___已下降。
【填空题】
19. 1号机高中低压汽封为___汽封,高中压缸的各汽封约在___时变成自密封。大约在___负荷下系统达到自密封
【填空题】
20. 1号发电机正常运行时定子冷却水压应当低于氢压___MPa,发电机氢与水的压差<___MPa报警。
【填空题】
21. 1号机组停运后,如发电机内有氢气,应保持___系统运行,维持___为0.08MPa。
【填空题】
22. 切换试验操作过程中,主控与就地人员要保证___畅通。切换试验操作过程中,应认真执行___制度。
【填空题】
23. 进行各项切换试验操作时,如遇紧急情况应立即___试验保持___方式。
【填空题】
24.试验切换后运行的转动设备,必需加强___。
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25. 启动6KV辅机前应先确认对应的6KV母线___是否正常,启动时应监视6KV母线电压、辅机的启动___及启动___。
【填空题】
26. 1号机轴向位移超过保护动作值___而保护未动时应立即破坏机组真空,紧急停机。
【填空题】
27汽轮机发生水冲击时应立即破坏机组___,紧急停机。
【填空题】
28.1号机突然发生剧烈___,轴振保护达动作值___而保护未动作时应立即破坏机组真空,紧急停机。
【填空题】
29. 超速试验应确定专人指挥,所有___显示正常,集控室和机头分别有人监视___、___等参数、并随时作好___准备,试验应在汽机专业人员的___下进行。
【填空题】
30. 汽轮机轴封处___冒火花时时应立即破坏机组真空,紧急停机。
【填空题】
31. 汽轮机断叶片或内部有明显的___时应立即破坏机组真空,紧急停机。
【填空题】
32. 1号机EH油箱油温低于___℃时禁止启动EH油泵,此时应启动___;当油温高于___℃停止加热。
【填空题】
33.1号机主油箱油位急剧下降至低油位线___以下,经补油仍无法___时应立即不破坏机组真空,紧急停机。
【填空题】
34.发电机___、___时应立即破坏机组真空,紧急停机。
【填空题】
35.机组油系统着火,无法很快___并严重威胁人身或设备___时应立即破坏机组真空,紧急停机。
【填空题】
36.1号机汽机缸胀差达到___或___时应立即破坏机组真空,紧急停机。
【填空题】
37. 轴承润滑油压下降到___而保护不动作时,紧急停机.
【填空题】
38.1号机主、再热蒸汽温度超过___℃延时15分钟无法恢复应故障停机。
【填空题】
39.1号机主、再热汽温在___分钟内急剧下降50℃时,应故障停机。
【填空题】
40.高压缸压比小于___,应故障停机。
【填空题】
41. 1号机高排温度达___℃时,应故障停机。
【填空题】
42. 汽轮机连续无蒸汽运行超过___分钟时,应故障停机。
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43. 1号机低压缸排汽温度大于___℃时,应故障停机。
【填空题】
44.定子冷却水出口温度达到___,线棒温度达到___,经确认无误时应故障停机。
【填空题】
45.1号机凝汽器真空急剧下降至___KPa,而保护不动作时,应故障停机。
【填空题】
46.汽轮机主油泵工作___时,应故障停机。
【填空题】
47.1号发电机定子冷却水___而保护30s未动作或定子冷却水___达9.5μs/cm,或发电机定子线圈___,无法处理时,应故障停机。
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