问题 问答题 简答题

废锅为什么会发生汽水共腾现象?

答案

参考答案:

发生汽水共腾通常会发生下列现象:(1)液位计内发生激烈波动水线分界不清(2)蒸汽带水严重时蒸汽管内发生水击和法兰向外冒汽。原因:第一给水质量不合格;第二没有及时排污;加负荷过急指焦炉气加量。处理方法;(1)降低废锅负荷,(2)加强排污和给水质量,降低炉水中盐类浓度,(3)开启蒸汽官道上疏水阀,排除积水,(4)在炉水质量未改变前,应降低和保持稳定负荷不得增加负荷。

阅读理解

  Typhoons(台风) the northern of the world have girls’ names. Sometimes they have very beautiful names. Rose is a pretty name but there was nothing pretty about Typhoon Rose.

It began to rain in Hong Kong on the morning of Monday, August 16th, 1971. At ten o’clock in the morning, Typhoon Rose was still 130 miles away but already the wind was blowing people’s umbrella away. The wind became stronger and stronger. The typhoon shelters were soon full of boats. Ships that were too big to go inside the shelters put down more anchors(锚). Some very big ships went out to the sea. It is safer for a big ship to be at sea in a typhoon because there are no rocks in the open sea. Kai Tak Airport closed. No planes were able to take off or land. At 9:00 in the evening, all the lights went out.

No one slept well that night. It is difficult to sleep in such bad weather.

In Typhoon Rose, more than one hundred people died.229 people were hurt and had and 66 of these had to go to hospital. 1,500 people lost their homes. The people of Hong Kong will not quickly forget Typhoon Rose!

小题1:What’s the possible result of Typhoon Rose in Hong Kong?

A.Lots of big ships hit rocks

B.More than two hundred people lost their lives and many more lost their homes.

C.People didn’t sleep well in such bad weather.

D.People turned off all the lights at 9:00 in the evening.小题2:The people of Hong Kong will not quickly forget Typhoon Rose because.

A.it caused the terrible losses.

B.they didn’t sleep well that night.

C.Typhoon Rose wasn’t as pretty as its name.

D.they couldn’t find their ships after the typhoon.小题3:Which of the following is TRUE according to the passage?

A.Typhoons all over the world have girls’ names.

B.Typhoons with pretty names are usually beautiful.

C.Typhoon Rose only hits Hong Kong.

D.Typhoon Rose brought a storm to HongKong in 1971.小题4:Some big ships didn’t go inside the shelters because________.

A.they had more anchors

B.it was safer outside

C.they were not afraid of rocks

D.it was too expensive for big ships t go inside the shelters.小题5:This passage is mainly about_________.

A.the names of typhoons

B.typhoons in Hong Kong

C.Typhoon Rose

D.what a typhoon is like

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