问题 问答题 简答题

风机运行中应主要监视哪些方面?

答案

参考答案:

风机是锅炉的主要辅助设备,其运行状态的好坏,对整个锅炉运行的经济性、安全性均有重大影响。因此,运行过程中应按有关规程规定,做好以下几项监视工作:

(1)风机运行是有无异常响声以及动、静部分发生相互摩擦的声音。

(2)轴承油系统是否漏油,油位是否正常,油环是否正常转动,油路是否畅通,油质是否良好。

(3)轴承冷却水应充足,排水应通畅。

(4)风机的振动值、窜动值在允许范围内。

(5)轴承温度不应高于厂家规定值,如厂家无规定时,滚动轴承温度一般不应高于80℃,滑动轴承温度不高于65℃。

(6)风机电动机的电流和烟、风压力指示正常,调节装置就地开度指示与控制室表盘上的指示应一致。

完形填空
Much meaning can be carried clearly with our eyes, so it is often said that eyes can speak.
Do you have such kind of       ? On a bus you may look at a stranger, but not too long. And     he finds that he is being looked at, he may feel uncomfortable. It is the same in daily life. If you are looked at for      necessary, you will look at yourself up and down, to see if there is    wrong with you. If nothing goes wrong, you will feel    with the person who is looking at you that way. Eyes do speak, right?
Looking too long at someone may seem to be impolite. But sometimes things are    . If a man looks at a woman for more than 10 seconds, it may mean that he wishes to attract her attention, to make her understand-that he loves her. When two people are in a conversation, the    will look at the listener from time to time, in order to make sure that the listener does pay attention to what he or she is speaking. Lovers will   looking at each other or being looked at for long time, to show something that    cannot express.
So    contact should be done accordion the relationship (关系) between two people and the place where you stay.
小题1:
A.experienceB.factC.mindD.news
小题2:
A.whereB.beforeC.ifD.whether
小题3:
A.more thanB.lack ofC.less thanD.kind of
小题4:
A.anythingB.somethingC.everythingD.nothing
小题5:
A.happyB.angryC.sadD.thankful
小题6:
A.different B.sameC.difficultD.funny
小题7:
A.playerB.listenerC.speaker D.other
小题8:
A.practiseB.finishC.hateD.enjoy
小题9:
A.thoughtsB.words C.mindsD.ideas
小题10:
A.arm B.bodyC.eyeD.face
选择题