推荐回答(1个)
1、汽\水\油等辅助机械设备及系统经过清理或清扫,转动设备试运转正常。
2、汽机真空系统灌水试验,严密性检查无泄漏
3、油系统循环结束,油质合格,交流\直流油泵投入备用
4、循环水\冷却塔系统试运行正常,并进行冲洗换水
5、真空系统试抽合格,达到技术要求
三、汽轮机静态试验:
1、 危急遮断油门动作两次,主汽门均能迅速关闭。
2、 轴向位移动作试验:
(1) 手动试验:手动揿杆后,主汽门能迅速关闭。
(2) 降压试验:调节降低轴向位移控制油压,当降至0.2Mpa时轴向位移动作,主汽门关闭。
3、 磁力断路油门动作试验:
(1) 汽机:手按紧急停机按钮后,磁力断路油门动作,主汽门迅速关闭,同时发电机断路器跳闸。
(2) 电气:手动跳发电机断路器,磁力断路油门动作,主汽门迅速关闭。
四、气轮机启动:
1、 暖管后启动辅助抽汽器抽真空至-0.05Mpa,润滑油压0.094Mpa,高压油压0.84Mpa,主油泵入口油压0.14Mpa,轴向位移油压0.47Mpa,第四道轴承油压0.092Mpa,一次脉冲油压0.15Mpa,二次脉冲油压0.14Mpa,主汽压力3.15Mpa,主汽温度359℃。
2、 冲转:汽轮机过临界转速时的最大振动0.03mm(3瓦),调速器动作时的转速2400r/min,之后切换到汽动油泵运行。
3、 额定转速时抄表一次,其各参数为:主汽压力3.5Mpa,主汽温度366,℃。真空至-0.9Mpa,润滑油压0.1Mpa,主油压0.9Mpa,主油泵入口油压0.08Mpa,轴向位移油压0.543Mpa,一次脉冲油压0.37Mpa,二次脉冲油压0.065Mpa。各轴承油温及各轴承振动在正常范围。
4、 停机惰走试验:惰走时间为25min,正常。
5、 停机盘车。
6、 汽轮机超速试验:汽轮机启动全速,做超速试验,转速至3360未动作,停机调整,再次启动做超速试验如下:
超速试验:第一次转速为3296r/min动作,第二次转速为3299r/min动作,动作误差符合要求。
稳定转速3000r/min,对二次脉冲油压进行调整,整定值为0.37Mpa。
五、电气试验:
1、 汽机启动过程的发电机转子交流阻抗测量:
汽机转速(r/min) 0 600 1000 1500 2500 3000 3000 超速后
电压(V) 20 20 20 20 20 20 20
电流(A) 14.97 14.8 14.76 14.74 14.72 14.70 14.72
2、发电机短路试验:
发电机短路试验记录
2、 空负荷试验:
发电机空载试验记录
六、汽轮发电机组带负荷:
汽轮机组冲转至并网带负荷各运行参数符合设备制造厂技术要求,
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