问题 问答题

细水雾灭火系统功能调试要求有哪些?

答案

参考答案:

细水雾灭火系统功能调试要求:

(1)分区控制阀调试

分区控制阀调试按照开式系统和闭式系统分区控制阀的各自特点进行调试,调试前,首先要检查分区控制阀或阀组的各组件安装是否齐全,组件安装是否正确,在确认安装符合设计要求和消防技术标准规定后,进行调试。

①开式系统分区控制阀

开式系统分区控制阀需要在接到动作指令后立即启动,并发出相应的阀门动作信号。

检查方法:采用自动和手动方式启动分区控制阀,水通过泄放试验阀排出,观察检查。

②闭式系统分区控制阀

对于闭式系统,当分区控制阀采用信号阀时,能够反馈阀门的启闭状态和故障信号。

检查方法:采用在试水阀处放水或手动关闭分区控制阀,观察检查。

(2)联动试验

对于允许喷雾的防护区或保护对象,至少在1个区进行实际细水雾喷放试验;对于不允许喷雾的防护区或保护对象,进行模拟细水雾喷放试验。

①开式系统的联动试验内容与要求

进行实际细水雾喷放试验时,采用模拟火灾信号启动系统,检查分区控制阀、泵组或瓶组能否及时动作并发出相应的动作信号,系统的动作信号反馈装置能否及时发出系统启动的反馈信号,相应防护区或保护对象保护面积内的喷头是否喷出细水雾,相应场所入口处的警示灯是否动作。

进行模拟细水雾喷放试验时,手动开启泄放试验阀,采用模拟火灾信号启动系统,检查泵组或瓶组能否及时动作并发出相应的动作信号,系统的动作信号反馈装置能否及时发出系统启动的反馈信号,相应场所入口处的警示灯是否动作。

检查方法:观察检查。

②闭式系统的联动试验内容与要求

闭式系统的联动试验可利用试水阀放水进行模拟。打开试水阀,查看泵组能否及时启动并发出相应的动作信号;系统的动作信号反馈装置能否及时发出系统启动的反馈信号。

检查方法:打开试水阀放水,观察检查。

③火灾报警系统联动功能测试

当系统需与火灾自动报警系统联动时,可利用模拟火灾信号进行试验。给出模拟火灾信号,查看火灾报警装置能否自动发出报警信号,系统是否动作,相关联动控制装置能否发出自动关断指令,火灾时需要关闭的相关可燃气体或液体供给源关闭等设施是否联动关断。

检查方法:模拟火灾信号,观察检查。

阅读理解

Planning a visit to the UK? Here we help with ways to cut your costs.

AVOID BIG EVENTS  Big sporting events, concerts and exhibitions can increase the cost of accommodation and make it harder to find a room. A standard double room at the Thistle Brighton on the final Friday of the Brighton Comedy Festival (19 Oct.) cost £169.15 at Booking.com. A week later, the same room cost £118.15.

If you can be flexible and want to know dates to avoid—or you’re looking for a big event to pass your time—check out sites such as Whatsonwhen.com, which allow you to search for events in the UK by city, date and category.

STAYAWAY FROM THE STATION If traveling to your destination by train, you may want to find a good base close to the station, but you could end up paying more for the sake of convenience at the start of your holiday.

Don’t be too choosy about the part of town you stay in. Booking two months in advance, the cheapest room at Travelodge’s Central Euston hotel in London for Saturday 22 September was £95.95. A room just a tube journey away at its Covent Garden hotel was £75.75. And at Farringdon, a double room cost just £62.95.

LOOK AFTER YOURSELF Really central hotels in cities such as London, Edinburgh and Cardiff can cost a fortune, especially at weekends and during big events. As an alternative consider checking into a self-catering flat with its own kitchen. Often these flats are hidden away on the top floors of city centre buildings. A great example is the historic O’Neill Flat on Edinburgh’s Royal Mile, available for £420 for five days in late September, with room for four adults.

GET ON A BIKE London’s ‘Boris bikes’ have attracted the most attention, but other cities also have similar programmes that let you rent a bicycle and explore at your own pace, saving you on public transport or car parking costs.

Among the smaller cities with their own programmes are Newcastle (casual members pay around £1.50 for two hours) and Cardiff (free for up to 30 minutes, or £5 per day). (358 words)

小题1:The Brighton Comedy Festival is mentioned mainly to show big events may __________.

A.help travelers pass time

B.attract lots of travelers to the UK

C.allow travelers to make flexible plans

D.cause travelers to pay more for accommodation小题2:“Farringdon” in Paragraph 5 is most probably __________.

A.a hotel away from the train station

B.the tube line to Covent Garden

C.an ideal holiday destination

D.the name of a travel agency小题3:The passage shows that the O’Neill Flat __________.

A.lies on the ground floor

B.is located in central London

C.provides cooking facilities for tourists

D.costs over £100 on average per day in late September小题4:Cardiff’s program allows a free bike for a maximum period of __________.

A.half an hour

B.one hour

C.one hour and a half

D.two hours小题5:The main purpose of the passage is __________.

A.to tell visitors how to book in advance

B.to supply visitors with hotel information

C.to show visitors the importance of self-help

D.to offer visitors some money-saving tips

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