问题 问答题 简答题

气化系统停车时应倒的盲板有哪些,及各盲板的安措是什么?

答案

参考答案:

(1)先倒S2蒸汽吹扫盲板为通,吹扫完毕再倒为盲。

安措:

①关前手动阀,导淋打开。

②气化炉压力0MPa时关CS炉头阀,(为了保证倒盲板时盲板前后无压力),盲板通后如进行蒸汽吹扫就打开CS炉头阀。

(2)倒炉头煤浆清洗盲板为通。

安措:

①关前手动阀,导淋打开。

②气化炉压力低于1.0MPa拆螺丝,为0MPa时方可倒通。

(3)倒中压氮置换激冷室盲板为通。

安措:

①关前后手动阀,导淋打开。

②气化炉压力低于1.0MPa拆螺丝,为0MPa时方可倒通。

(4)倒中压氮置换氧管盲板为通。

安措:

①关前后手动阀,导淋打开。

②气化炉压力低于1.0MPa拆螺丝,为0MPa时方可倒通。

(5)倒烧嘴冷却水软管进出口盲板为通。(连投不倒)

安措:冷却水走硬管,软管进出手动阀关闭。

(6)倒合成气抽引盲板为通。(连投不倒)

安措:

①关前手动阀。

②气化炉压力低于1.0MPa拆螺丝,为0MPa时方可倒通。

阅读理解

阅读理解。

      Shanghai Science and Technology Museum is the city's new landmark (标志性建筑). If you go to visit

Shanghai, people there will suggest you go to the Shanghai Science and Technology Museum, which is

considered one of the world-class attractions in Shanghai.

      — Ready to fly. The design also represents (代表) the rapid development of Pudong as Well as the spirit

Shanghai's people and their search for new science and technology.

      Construction of the museum began in December 1996 and was completed in Mar 2001. The museum

covers an area of 68,000 square metres and has a floor space of 98,000 square metres. So far, the museum has

opened seven exhibition areas to the public- Earth's Crust Exploration (地壳探秘), Wide Spectrum of Life

(生物万象), Light of Wisdom (智慧之光) , AV Paradise, Cradle of Designers (凤计者摇篮), Natural History,

and The Science and Technology Garden for Children, — as well as three movie houses -an IMX 3-D Large

Format Theatre (立体巨幕影院), an IMAX Dome Theatre (球幕影院) and IWERKS Theatre (四维动感影院)

offering films in large-screen, 360 degrees, and four dimensions.

      Each exhibition hall has its own speciality (特点).

      Wide Spectrum of Life is an outdoor exhibition area. What greets your eye is a rainforest modeled after that

of China's southwestern province of Yunnan with waterfalls and tall trees.

      In the exhibition area known as The Cradle of Designers, visitors can see design creations from Shanghai.

They can star in their own music videotapes and make small gifts for their relatives and friends. And the best of

their designs will be collected and displayed in the area.

      The Science and Technology Garden for Children, which was designed for children aged from 1 to 12,

looks like a land in a fairy tale. There are two springs and a fountain that begins its display at the sound of a loud

cry. There is also a large tree that shows how green plants change carbon dioxide and water into food. Children

will not only have fun in the garden but also learn some simple and basic facts about science and technology.

1. The local people of Shanghai will suggest visitors go to the Shanghai Science and Technology Museum

    because ________. [ ]

A. it looks like a bird ready to fly

B. it's in Pudong

C. it represents the spirit of Shanghai's people

D. it covers an area of 68,000 square metres

2. It took over ________ years to complete the construction of the museum. [ ]

A. two

B. three

C. four

D. five

3. ________ exhibition areas have been opened to the public. [ ]

A. Seven

B. Eight

C. Nine

D. Ten

4. When you come into ________, a rainforest catches your eye first. [ ]

A. Wide Spectrum of Life

B. Cradle of Designers

C. Science and Technology Garden for Children

D. Earth's Crust Exploration

5. In The Cradle of Designers, visitors can ________. [ ]

A. buy presents for their relatives and friends

B. act as a star and make their own videotapes

C. shout loudly to make the springs come out

D. read fairy tales

单项选择题