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97.发电机内充有氢气时,空侧氢油分离箱的___应连续运行。
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98.密封油系统投入前,应先投入主机___系统。
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99.在润滑油主油箱排油前,必须先将发电机内___置换完毕。
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100.停机期间或正常运行中,若氢侧油泵故障需处理时,则允许___暂时退出运行,但应密切注意氢气纯度变化不低于___,故障消除后立即投运。
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101.停机期间未排氢,发电机及其氢气管道附近___米内禁止明火。氢系统动火作业必须___后进行。
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102.1号机密封油系统正常运行时保持氢压___MPa。
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103.1号机密封油系统正常运行时氢油压差保持为___MPa。
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104.1号机密封油系统正常运行时空侧、氢侧密封油供油压差在___Kpa范围之内。
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105.1号机密封油系统正常运行时密封油冷却器出口油温应保持在___℃之间。
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106.1号机空侧密封油正常工作油源由___提供,由主压差阀保证氢油压差___MPa。
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107.1号机空侧密封油第一备用油源是由汽机___来的2.1MPa高压油,当主工作油源发生故障、氢油压差降到___MPa时,该油源由___压差调节器控制调节,维持氢油压差___MPa。
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108.1号机空侧密封油第二备用油源是由汽机主油箱上的___油泵提供,当汽机转速低于2800r/min或发生故障且氢油压差降到___MPa时,则由___油泵提供密封油。该油源由备用压差调节器控制调节,维持油氢压差___MPa。
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109.1号机空侧密封油第四备用油源是由___油泵提供,当氢油压差降到___MPa时,启动___油泵,使密封油压恢复并保证氢油压差___MPa。该油泵只允许运行___小时左右,如前两级油源短时间内不能恢复运行,应将氢气压力降到___MPa,以免直流油泵停运后引起漏氢。
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110.1号机空侧密封油第三备用油源:由___系统供给,提供的油压较低,要求该油源在密封油装置入口处的油压不低于___MPa。该油源投入运行后,维持发电机内氢压___MPa 。
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111.1号机电动阀试验前应对运行中___无影响,检修人员___,电动阀___正常。
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112.必须在___停止运行,且发电机内置换为___后,才能停止密封油系统运行。
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113.1号机正常运行时发电机漏氢量<___m3/日
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114.1号机EH油再生泵根据___情况停止,当停机后EH油温低时,油箱中会发生___,停机时间超过一周时,应投入EH油再生泵运行___小时。
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115.1号机EH油泵的启动条件有EH油箱油位不低于___mm,EH油温大于___℃,确认EH油系统阀门已检查处于___位置。
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116.凝汽器真空降低时,容易过负荷的级段为___。
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117.氢气冷却器局部故障停运,处理原则是当发电机满足额定氢压0.35Mpa的条件下,氢气冷却器有1/4台退出时,允许带___%额定负荷。.氢压降低现象是发电机氢压___,DCS发出“氢气压力低”___报警信号
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118.定子水电导率增加的原因有___漏入水中,不纯净的___进入,___中的树脂接近使用寿命。
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119.定子水电导率增加的现象有定子水电导率高___,就地电导率指示表读数___。
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120.凝结水泵推力轴承温度、电动机推力轴承温度___℃报警,___℃时保护停泵,电动机线圈温度___℃报警,电动机轴承温度___℃报警。
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121.凝结水泵汽化现象有___摆动,___不稳或到零,电流___并___,泵出口母管___,泵运行中___增大。
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122.1号机开式冷却水系统有真空泵冷却器、___热交换器、___冷却器、定冷水冷却器、___冷却器.
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123.1号机循环水冷却水塔的主要组成部分包括:___池、通风筒、人字柱、中央竖井、___槽、配水管、喷头、填料、除水器等。
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124.凝汽器最佳真空___极限真空。
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125.1号机闭式冷却水系统是由二台___容量的闭式冷却水泵,一个___ m3闭式稳压水箱和二台100%容量的闭式冷却水___组成。
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126.1号机闭式冷却水系统主要是向汽泵前置泵___冷却器,电泵及前置泵机械密封冷却器,___润滑油冷却器,___润滑油站冷却器,EH油___,密封风机轴承,凝结水泵___等提供冷却水。
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127.1号机闭式水泵出口母管压力低是由于运行泵工作___,系统___ ,及入口滤网___等原因造成的。
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128.1号机辅助蒸汽系统向空预器___吹灰、除氧器启动___、暖风器、小汽机___及调试、汽机___、采暖等提供用汽。
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129.当发生厂用电失去,机组故障停机,当排汽温度小于___时,方可投入凝汽器冷却水,若排汽温度超过___,需经领导同意,方可投入凝汽器冷却水___。
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130.1号机设有两台___容量的水环式真空泵,在机组启动期间及夏季高背压工况两台泵可___运行,正常运行时一台运行一台备用。
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131.1号机在确认___已经停止运行,方可以解除顶轴油泵___,停运顶轴油泵。
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132.1号机润滑油系统由主油泵、___油泵、___油泵、___油泵、___装置、冷油器、___系统、主油箱、射油器、油净化装置等组成.
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133.1号机油净化系统包括___装置及其与汽机___、___相连的有关管道系统。
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134.汽轮机闭式水箱可以用 ___、___补水。
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135.轴封供汽停运前应确认机组在___状态且汽封供汽来自___,主凝汽器真空完全消失,方可将轴封压力定值减至零,关闭轴封___。
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136.1号机凝结水系统系统设两台100%容量的筒式___,四台___,一台轴封冷却器,一台___,一台___立方米的凝结水补水箱,和一台凝结水输送泵。
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137.1号机凝结水采用中压___装置。
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