The cause of the situation at the Daiichi Nuclear Power Plant in Fukushima Prefecture

** occurred off the east coast of Honshu, Japan, with frequent strong earthquakes of continuous magnitude, magnitude and magnitude, power outages in Fukushima, Tokyo and other places, and tsunami warnings issued in some areas. A total of 4 people were killed and 97 injured in this time, including a fire warning issued at the Daiichi and II nuclear power plant in Fukushima, and it was found that there was no fire after verification. The Fukushima Daiichi and Daiichi Nuclear Power Plant is one of Japan's most important nuclear power plants, and if the nuclear power plant is damaged and leaks, it will not only endanger Japan's Shizhi Nuclear Plant, but also neighboring countries will also be threatened by nuclear contamination.

As early as March 11, 2011, a Richter scale** earthquake occurred in the northeastern Pacific region of Japan, and the earthquake was felt so strongly that the Fukushima Daiichi and Daiichi Nuclear Power Plant was severely affected. Radioactive materials leak to the outside, and water sources and the surrounding environment are contaminated. Due to the high level of radiation, nuclear materials have penetrated into the natural world, and have had an indelible impact on humans and living beings in the surrounding area.

A nuclear power plant is a power plant that uses the energy released by nuclear fission or nuclear fusion reactions to produce electricity, and the fuel used is generally radioactive heavy metals: uranium and plutonium. "Efficient development of nuclear power on the basis of ensuring safety" is an important policy for China's energy construction and nuclear industry development.

Compared with traditional power stations, nuclear power plants have many advantages The development of nuclear power is conducive to the optimization and sustainable development of electric power, and the enhancement of China's comprehensive economic strength, international status and industrial technology level. However, the development of nuclear power requires certain technical needs and safety protection, and radioactive materials are extremely harmful to the environment, but under normal circumstances, nuclear power plants can be well protected. China has learned the lessons of the Fukushima nuclear leak in Japan and innovatively adopted active and passive safety technology, and the safety indicators of China's nuclear power plants have reached the advanced level of the international third-generation nuclear power technology.

In the waters near Fukushima Prefecture in Japan, the spent fuel pool cooling pumps of units 1 and 3 of the Fukushima Daiichi Nuclear Power Plant stopped working for a time and returned to normal. Tsunami warnings have been issued in Fukushima and Miyagi prefectures in Japan, asking people to quickly stay away from the coast. Many Shinkansen lines such as Akita and Tokaido are temporarily suspended.

The runway at Tokyo's Haneda Airport has also been closed.

In Ibaraki Prefecture, which is adjacent to Fukushima Prefecture, there have been no reports of abnormalities at nuclear-related facilities such as the Tokai Nuclear Power Plant and the Tokai Daiichi Nuclear Power Plant. Despite the sturdiness of the reactor itself, a conflict at a nuclear power plant could injure key personnel, destroy command and control structures, and even damage critical reactor cooling facilities. If there is any anomaly in the operation of a nuclear reactor, the safe management of the reactor requires the support of infrastructure, which collapses in the event of a conflict.

In the event of an accident, mitigation measures cannot be implemented. If a nuclear power plant is hit by a missile, it may not produce radioactive material, or it may produce radioactive material comparable to the Chernobyl accident. Once the spent fuel pool containing spent fuel is hit in a standby position, the damage caused by the Chernobyl accident is several times greater.

The Richter scale** in eastern Japan, near Fukushima, triggered the third major nuclear catastrophe in human history. As the largest nuclear power plant disaster in history, East Japan had a huge impact on the world.

The Fukushima nuclear power plant has six boiling water reactors, and units 4, 5 and 6 were shut down at the time of the incident. When ** is detected, Units 1, 2 and 3 immediately enter the automatic shutdown procedure. The Fukushima nuclear power plant accident caused by the rolling earthquake caused widespread environmental impacts, and the disposal of radioactive materials after the disaster is far from over, and it is also the most serious nuclear accident at the Chernobyl nuclear power plant.

It is very important that because the investment in nuclear power plants is very large, the construction time is relatively long, the technical gold content is very high, and the production and production industries involved in the mold are relatively extensive, which plays an important role in promoting economic development.

The Fukushima nuclear power plant is very important, and if a leak occurs, it will be a devastating disaster for this human race, and this time it will not have much impact on the Fukushima nuclear power plant.

It can improve the energy of some universities, reduce the loss of resources, convert thermal energy into chemical energy, generate electricity with hand oak, and will not produce air pollution, and will not add to the greenhouse effect of the disadvantages.

1. Fukushinia Nuclear Power Plant (Fukushinia Nuclear Power Plant) is located at 37 degrees 25 minutes 14 seconds north latitude and 141 degrees 2 minutes east longitude, and is located in Fukushima Industrial Zone, Japan. It was the largest active nuclear power plant in the world at the time, consisting of the Fukushima Daiichi Nuclear Power Plant and the Fukushima Daiichi Nuclear Power Plant, with a total of 10 units (6 units at the first station and 4 units at the second station), all of which are boiling water reactors.

On March 11, the Tohoku Pacific region of Japan experienced a Richter scale**, followed by a tsunami, which severely affected the Fukushima Daiichi Nuclear Power Plant and the Fukushima Daiichi Nuclear Power Plant. On March 12, 2011, the Agency for Nuclear Safety and Security of the Ministry of Economy, Trade and Industry (METI) announced that radioactive materials from the Fukushima Daiichi Nuclear Power Plant had leaked to the outside as a result of the impact. On April 12, 2011, Japan's Nuclear and Industrial Safety Agency (NISA) classified the Fukushima nuclear accident as a maximum nuclear accident level of 7 (mega accident), which is the same level as the Chernobyl nuclear accident.

3. In Fukushima Prefecture, about 380,000 children in Fukushima Prefecture were tested for thyroid glands after the nuclear accident. As of February 2018, 159 people have been diagnosed with cancer and 34 people are suspected of having cancer. Of the 84 patients in Fukushima Prefecture who were diagnosed with thyroid cancer and underwent surgery, about 8 out of 10 had cancer** and underwent surgery again.

Japan's Fukushima nuclear power plant is a boiling water reactor nuclear power plant, which is similar to the pressurized water reactor nuclear power plant, and both belong to light water reactors, both of which have the characteristics of high safety and high reliability. There are containment vessels that "wrap" the reactor to prevent uncontrollable leakage of radioactive material.

At present, the temperature in the three reactors that have been shut down at the Fukushima nuclear power plant is still extremely high, and they still need to be cooled. Rescuers are using the most primitive method to spray seawater to cool down the three reactors. Once the reactor temperature exceeds 2,200 degrees Celsius, the nuclear fuel in the reactor will "melt", causing a catastrophic nuclear leakage, which is the biggest challenge facing Japan after the earthquake.

On the 12th, there was an incident in the building where the No. 1 reactor of the Fukushima Nuclear Power Plant is located, causing serious damage to the wall. Fortunately, however, the 15-centimeter-thick metal casing of reactor 1 was unharmed. At that time, Japan stressed that the level of radioactive materials around the Fukushima nuclear power plant did not increase further after the incident, and the pressure inside the No. 1 reactor began to gradually decrease.

However, the No. 2 and No. 3 reactors were in immediate danger.

It is reported that the reason for the occurrence of the above ** is that in order to reduce the huge pressure in the reactor, the rescue personnel opened the valve to discharge a radioactive gas containing a large amount of hydrogen. This diffuse hydrogen enters the plant room** and destroys the entire roof and exterior walls of the plant. In addition, the "cooling water" sprayed on the reactor shell also decomposes into hydrogen gas under the action of high temperatures and occurs at the same time**.

As long as the reactor shell is not destroyed, there will be no large-scale nuclear leakage. Analysts point out that if a serious leak occurs at the Fukushima nuclear power plant, it will be as radioactive as the two atomic bombs that Japan suffered at the end of World War II.

The radioactive elements cesium and iodine have been detected near Unit 1, and the radioactive radiation intensity has exceeded the normal standard by more than 1,000 times, and the radiation intensity outside the nuclear power plant has exceeded the normal standard by 8 to 9 times, which means that there has been a leak of radioactive material.

Nuclear radiation is mainly three types of rays:

The rays are helium nuclei and the rays are electrons, and these two rays have a relatively close impact distance due to their small penetrating power, as long as the radiation source does not enter the body, the impact will not be too great.

Rays are very penetrating and are electromagnetic waves with very short wavelengths. Electromagnetic waves are very common radiation, and their effects on the human body are mainly determined by power (related to field strength) and frequency. Radio waves used in communication are electromagnetic waves with low frequencies, and if they are arranged in order from low to high (wavelength from long to short), electromagnetic waves can be divided into:

Long-wave, medium-wave, short-wave, ultra-short-wave, microwave, far-infrared, infrared, visible, ultraviolet, X-ray, ray. Electromagnetic waves with frequencies lower than (wavelengths longer than) visible light have a predominantly thermal effect on the human body, while rays with frequencies higher than visible light have a major chemical effect on the human body.

Also, the leak won't affect you, even if you do get so radiated that taking a shower can eliminate 95 percent of the radiation.

This nuclear accident is very serious, and the nuclear accidents often mentioned in textbooks are the two Three Mile Island and Chernobyl, and Chernobyl has a large-scale nuclear radiation release, and Three Mile Island has only melted down the core and scrapped the nuclear power plant, which has no impact on the public. A small amount of radioactivity has been released from Fukushima this time, and although it will not bring major health effects at this stage, the accident is already quite alarming, and the safety design of the nuclear power plant is very strict, and it is impossible to understand how this situation has evolved, and many reactors have failed.

I believe that Japan will be able to resolve this accident without having a big impact on the public. I really sympathize with them, as if they are about to die if they are shocked.

No. The Fukushima nuclear power plant only leaked hydrogen, which melted into ordinary water vapor with oxygen, which did not have a major impact.

Japan's nuclear safety watchdog said on March 23 that the reactor temperature of Unit 1 of the Fukushima Daiichi nuclear power plant had risen and exceeded the design limit. The temperature of the reactor pressure vessel in Unit 1 is close to 400 degrees Celsius, while the design ceiling temperature is only 302 degrees Celsius.

According to Japan's "Asahi Shimbun" on March 21, Tokyo Electric Power Company announced on the 21st that the concentration of radioactive element iodine-131 around the Fukushima Daiichi Nuclear Power Plant has reached 6 times the standard concentration, in addition to the detection of radioactive element cesium, this phenomenon proves that the nuclear fuel in the nuclear reactor and the waste fuel pool has been damaged, and the nuclear fuel rod was damaged and released the nuclear fission-generated substances iodine-131 and cesium.

Reactor No. 1 at 15:36 p.m. on March 12 Hydrogen ** No. 2 reactor at 6:10 a.m. on March 15 Reactor ** No. 3 reactor at 11:01 a.m. on the 14th and 10 a.m. on the 16th Hydrogen ** No. 4 reactor at 9:30 p.m. on the 15th ****, and again at 5:45 a.m. on the 16th**No. 5 reactor Reactor heating up, and the No. 6 reactor has been out of danger Reactor heating up has occurred, and it has been out of danger.

If Japan still can't do it, they will have to seal the nuclear power plant. You see, Japan is really troublesome, and directly let a few people pass on the most advanced radiation protection suits, go in and dismantle the Fukushima nuclear power plant, and then seal it up, hey, is it really the end of the world? Help us!

Let's work hard not to let the earth be destroyed, we still have countless descendants!!

On February 23, black smoke rose from a tsunami-stricken nuclear power plant in Japan, and the plant measured unusually high levels of radiation, and engineers tested system components and equipment, and restarted the cooling system and measuring instruments. Power in the control room of reactor unit No. 3 has been partially restored. It is possible that the cooling system will be restored in 24 days.

Black smoke from Unit 3 of Japan's Fukushima Nuclear Power Plant Evacuation of crews from the site.

No. 1 and No. 2 have been blown up and are now being repaired. The No. 3 and No. 4 nuclear power plants have already begun to smoke, and there is a high probability of an accident. That's all I know. zz