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发帖数: 22092 | 1 http://www.iaea.org/newscenter/news/tsunamiupdate01.html
Unit 1
Unit 1 experienced an explosion on 12 March that destroyed the outer she
ll of the building's upper floors. No precise information has been avail
able on the status of the spent fuel pool.
1号福娃12号发生爆炸，厂房上部建筑损毁，乏燃料池现况不明
Unit 2
No precise information has been available on the status of the spent fue
l pool. Authorities began adding 40 tonnes of seawater to the spent fuel
pool on 20 March.
2号福娃乏燃料池现况不明。20日开始灌入40吨海水
Unit 3
Unit 3 experienced an explosion on 14 March that destroyed the outer she
ll of the building's upper floors. The blast may have damaged the primar
y containment vessel and the spent fuel pool. Concerned by possible loss
of water in the pool, authorities began spraying water into the buildin
g in an effort to replenish water levels. First, helicopters dropped sea
water on 17 March, and every day since then, including today, emergency
workers have sprayed water from fire trucks and other vehicles.
3号福娃14日曾经爆炸，厂房上部建筑损毁，安全壳和乏燃料池可能在爆炸中受损。
日本当局试图给该厂房洒水来提高乏燃料池水位。17日直升机洒水，之后每天（包
括今天）现场人员通过消防车及其他车辆继续洒水。（未谈及效果）
Unit 4
This reactor was shut down 30 November 2010 for routine maintenance, and
all the fuel assemblies were transferred from the reactor to the spent
fuel pool, before the 11 March earthquake. The heat load in this pool is
therefore larger than the others.
On 14 March, the building's upper floors were severely damaged, possibly
causing a reduction of cooling capability in the spent fuel pool. Emerg
ency workers began spraying water into the building today.
4号福娃去年11月30日停机检修，所有燃料棒一如乏燃料池。14日该厂房上层建筑严
重受损，可能影响乏燃料池冷却能力。现场人员今天开始向该厂房洒水。
Unit 5 and 6
Instrumentation at these reactors began to indicate rising temperatures
at their spent fuel pools starting on 14 March. Three days later, Japane
se technicians successfully started an emergency diesel generator at Uni
t 6, which they used to provide power to basic cooling and fresh-water r
eplenishment systems. Workers created holes in the rooftops of both buil
dings to prevent any hydrogen accumulation, which is suspected of causin
g earlier explosions at Units 1 and 3.
A second generator came online on 18 March, and the next day, the higher
-capability Residual Heat Removal system recovered full function. Temper
atures in the spent fuel pools of Units 5 and 6 have gradually returned
to significantly lower temperatures. (See graph at left.)
5，6号福娃在连接第二个发电机后散热系统恢复工作，乏燃料池温度显著下降（见
下图）。
Common Use Spent Fuel Pool
In addition to pools in each of the plant's reactor buildings, there is
another facility -- the Common Use Spent Fuel Pool -- where spent fuel i
s stored after cooling at least 18 months in the reactor buildings. This
fuel is much cooler than the assemblies stored in the reactor buildings
. Japanese authorities have confirmed that fuel assemblies there are ful
ly covered by water, and the temperature was 57 ?C as of 20 March, 00:00
UTC.
公用乏燃料池用于储存已经放置18月以上的乏燃料棒，日本当局确认所有乏燃料棒
完全被水覆盖，20号0点UTC（北京时间8点）温度为57?C |
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