Movie black technology

Chapter 408 Nuclear Protection Barrier

This newly published empty airplane is not known before Chen, but the development of this horizontally and off-down airline is also in his expectations.

The use of a plasma reactor's Tibetan oil performance is limited, if not these Tibetan antelope can be the latter nuclear power version, he doesn't want to make it.

Tang Hua Cong and he are doing this, and there is also the same idea in China.

Moreover, Chen Zhen estimates that the level of domestic in the research is certainly more than one.

Like the plane, there is a passenger aircraft and other types in addition to the car.

So now the whole bucket package of the air plane is estimated to be prepared in various institutes.

Domestic and foreign movements in these days are like the boxing of both sides, but now there is no time to be really playing, so after a wind wave has passed, it will calm down.

And Chen He also received another good news about micro-nuclear reactors.

That is, the manufacturing of the safety shell sample outside the reactor is completed. From the initial test, the shielding performance of radiation and radioactive substance is completely standard.

This layer of safety shell is located in the outermost layer of the entire nuclear reactor, which is equivalent to wrapped the large box of the reactor, only if the heat-saving loop system is likely to cross it, it will firmly fix it with the spacecraft structure.

This layer of safety shell itself is resistant to resistant radiation, plus the hull of the entire spacecraft as a buffer, the risk of nuclear leaks has been reduced to be minimal.

Shortly after receiving this message, the time entered October, and the other parts of the spacecraft nuclear protection system also came successively.

First, the manufacturing of the nuclear fuel core is completed, and then the new cladding steel is successfully released, and then the circuit system and pressure system also test is also tested.

These constitute four layers of nuclear protection on Tibetan antelope.

The first layer is a nuclear fuel core and a peripheral alloy matrix. These nuclear fuels after the ceramic wrap can retain 99.8% of radioactive substances without escape, only neutron and gamma rays of penetration capacity come out.

The second floor protection measures are followed by the enclosure tube.

This thing is the container of nuclear fuel, and a block nuclear fuel center is loaded into the cladding tube, which constitutes people often hear the fuel rod, the enclosure tube is in a sealed state, and it can prevent it in long-term operation. The radioactive fission product escapes.

If it is a slow neutron reactor, the world all countries generally use zirconium alloys as a shell tube because zirconia has very low heat neutron absorption cross section, high hardness, ductility and corrosion resistance.

However, the Tibetan antelope is a fast neutron reactor, and the shell tube material is different.

The main requirement of the fast pile enclosing tube material is low, weldability, high temperature strength, and good anti-irradiation performance, good compatibility with fuel and coolant, and it is best to have it. The advantage of manufacturing a low cost.

In the past, all countries used were austenitic stainless steel. This is an industrial stainless steel until it has been found to use this steel as a shell element, which will irradiate swelling, affect the safety and economy of the reactor, so Start replacement of the shell material.

Now, the fast pile shell material has been transitioned to ferrite martensite steel.

In the system, the material used is the same as improving steel, and there is no difference in the route with the current technology, and it can be satisfied with the requirements mentioned above.

The third nuclear barrier of Tibetan antelopes is a special pressure vessel and a closed-circuit heat conduction system.

This barrier can completely block the radioactive substance, even if all nuclear fuel components in the core disrupted, the radioactive material cannot be leaked from it, which is equivalent to the second shell within the safety case.

The remaining fourth barrier is naturally a safety shell. Its protective properties are the same as the third layer barrier, as long as it is not broken, even all internal protective measures have not been invalid to worry about nuclear leakage.

The protective system is here, and the internal stop devices are basically completed.

Chen Shen calculates time, it is estimated that there is a nine months to make this fast heap. Now it has been this point in three months. Maybe there will be another month to make a reactor assembly, you can say that The time is still very abundant.

The work efficiency of other systems in China is not low.

The protection system just got it, and did not have long after Chen Ni received another good news.

That is the temperature difference power system on the spacecraft has been completed.

As soon as I heard this news, Chen Shen hit a helicopter who took off the base.

After several times a few times in the middle, he came to the factory.

Here is not a nuclear industry base, there is no need to worry about security issues, so he can come over.

After coming to the factory, Chen Shen arrived at the scene in the first time, and saw this set of power generation systems to move on the spaceship.

It is built from many block nano-semiconductor thermoelectric materials, which have a large small shape from the nanometer scale and synthesized, and the frame is constructed. It looks that it is basically consistent with the sailboat frame of Tibetan antelope. It is the skeleton version of the Tibetan antelope.

This is a temperature difference power system, does not need steam turbine, do not need to boil water!

This power generation system is also connected to a heat conduction system, which is a liquid nano secondary circuit, which is responsible for receiving heat from a radioactive primary loop, and then transmits heat to power generation.

Although Chen's speed is fast enough, he is still late, and the staff has tested this system.

And the Ju Yongjun followed by him got all the data of this power generation system.

"Tests have been conducted for eight hours, and the thermal conduction system is full of power, and after losing the continuous heat source until now, the power generation system maintains a full power operation."

Ju Yongjun took the test report until the current test report, repeatedly discussed the Chen List who was observing the power generation system, and then handed the report.

Chen got through the document carefully, and there is also a cattle director responsible for on-site management to supplement:

"From the present situation, this power generation system is estimated to run again over power, and then slowly down, and this is still in the case of atmospheric heat transfer, if it is in vacuo, full power run time I have to increase it. "

Director's look at the power generation system, and the eyes are full of surprises. "This thermal electric material is too strong. Now the heat transfer system stops for three hours. The temperature difference between the two ends is less than 50!"