"Ask the sky" when the Chinese Space Station is built on the orbit.

Chinese Space Station Three -Mecar Constant Figure People's Visual Planning

Yangcheng Evening News all -media reporter Li Meiyan

China Space Station is about to usher in a "big guy".

On July 22, China Space Station asked the whole district to practice the entire region before launching the system of the Tiangtian Experimental Class. At present, the system of Qi Tian's experimental compartment task has been prepared before the launch, and the space station combination has also been adjusted to the track, which has the conditions to meet with the Qi Tian experimental cabin.

This means that the Chinese Space Station is about to usher in the first experimental cabin, which is also the first time that China Space Station has greeted spacecraft visiting in a state of astronauts.

Dedicated car

The launch of the test compartment of this time is 17.9 meters in length and weighs more than 23 tons. It is the largest space station single cabin section in my country at this stage. Send such a "big guy" equivalent to the six -story high -level high, and the aerospace technology workers have enabled "special cars" -The Long March 5 Lirep Rockets.

Public information shows that the height of the Long March 5 B -carrier Rockets is about 53 meters, the take -off thrust exceeds 1,000 tons, and the near -ground orbital carrier capacity reaches 25 tons. It is the new -generation carrier rocket with the largest near -land carrier capacity in my country.

"Paying more than 22 tons of goods on the track at a time, only the Long March 5 B can be realized in my country." Lou Liang, deputy chief designer of the Long March 5 carrier rocket, pointed out in the "walk into the China Space Station" science popularization interview.

This will be the third launch of the Long March 5 B -Car Rocket. On May 5, 2020, the Long March 5th Fly flew, and successfully sent my country's new generation of manned spacecraft test ships into the scheduled track. On April 29, 2021, the Long March 5 Yao II Load Rocket successfully sent the heavens and the core compartment to the scheduled orbit. China Space Stand was fully launched in the rail assembly and construction.

"Zero window" launch

"The two experimental cabin sections of this year have a major feature. Its task is to connect with the Tianhe Core Card." Lou Liang pointed out that this has put forward new requirements for the carrier rocket.

The biggest challenge is the "zero window" launch. In most of my country's previous space launch tasks, the launch window was within a time period, but during this task, I asked the Tianjie experimental compartment to be connected with the heaven and the core compartment. Therefore, there are very strict requirements for the launch window. Essence This is also the first time that my country ’s large thrust -carried carrier rocket has achieved“ zero window ”launch.

To this end, the rocket designer team optimized the pre -launch process of the Rockets to ensure that there was enough time to confirm the state of the Rockets before ignition. Lou Liang specially reminded that when watching the rocket launch this year, you can pay attention to the change of the password before ignition. "The password when the rocket ignition is no longer as dense. At the 2.5 minutes before the ignition The arrival of the moment.

At the same time, it is worth mentioning that, as the only "first -half" vehicle -mounted rocket in the world's active rocket, the Long March 5 -carrier Rockets during the launch, the main body of the Rockets will no longer perform multiple separations, only the first -class rockets use the first -class rockets. The booster can directly enter the track to achieve "one step ascending to the sky."

The so -called "first and a half" configuration, that is, the main part of the rocket is "first level", and the four boosters around are "semi -level". It is understood that the main part of the Long March 5 B -carrier rocket uses two 50 -ton liquid hydrogen oxygen engines, and the four booster uses a total of eight 120 -ton liquid oxygen and oil engines. After the ignition, these engines can provide more than 1,000 tons of take -off thrust for the Long March 5 rocket. It only takes more than 400 seconds to send the space station cabin section into the scheduled track.

T -shaped configuration

"According to the development of Chinese aerospace, (China Space Station) selected the assembly by the spacecraft independently." Hou Yongqing, deputy chief designer of the Chinese manned aerospace engineering space station system, said in a popular science interview with "Entering the China Space Station" that China designed China During the space station, my country comprehensively considers the current launch capacity and subsequent operating costs. Finally, the space station consists of three cabins. "These three cabins form a T -shaped structure. it is good".

The configuration planned by the Chinese Space Station is generally divided into one core compartment and two experimental cabins. Asked about the docking of the Tiangan experimental compartment and the Dream Timetan experimental cabin at the left and right ends of the spherical docking end of the front end of the heaven and the core compartment, forming a T -shaped configuration.

The core cabin of Tianhe is the center of the Chinese Space Station. It can also be said to be a "brain", which is used to unify control and manage the space station combination, provides a place for astronauts to provide life and work, while supporting scientific research projects.

Ask the Tianyan experimental cabin will be the first experimental cabin ushered in the China Space Station, equipped with four experimental cabinets, including life ecological experimental cabinets, biotechnology experimental cabinets, gravity -changing scientific experimental cabinets, scientific glove boxes and low -temperature storage cabinets. It can support the development, development, genetic, aging and other response mechanisms of various plants, animals, microorganisms, etc. under space conditions. In addition to being used for scientific experiments, asking the Tianjin experimental cabin also requires the functional backup of the "part -time" and the core compartment. When the functional failure appears in the core compartment, it can be switched to the test compartment.

A few days ago, the Mengtian Experiment Cel, which successfully completed the positive heat test in Tianjin, will be the second experimental cabin ushered in the China Space Station. It is equipped with nine experimental cabinets to support the multi -phase flow and phase transformation of heat transfer under the cover of gravity. Research on the essential laws of substances such as basic combustion process, material solidification mechanism, and cutting -edge experimental research on super -cold atomic physics. Space home

Hou Yongqing mentioned in CCTV's "Open Lecture" program that once she participated in the application seminar of an international space station, hoping to communicate the application of the robotic arm of the space station with the National Aerospace Bureau of the National Aerospace Bureau, but it was ignored by the other party. "I thought at the time that our space station construction could only rely on ourselves, otherwise we had no right to speak, and we must build our own space station independently."

Today, with the unremitting efforts of Hou Yongqing and other aerospace technology workers, the China Space Station has shifted to the rail construction stage from the key technical verification stage.

In April of this year, Hao Chun, director of the China Manned Aerospace Engineering Office, said in the introduction of the progress of the construction of the China Space Station that this year planned a total of six flight missions, including the Tiantian Experimental Class in July Launch Space Station, and the Dreaming Test Experimental Curm in October Launch Space Station in October. Wait.

According to the task arrangement during the construction stage of the space station, the Shenzhou No. 14 Flight Passenger Group will cooperate with the ground to complete the space station assembly and construction work, and gradually build a three -cabin combination flight status from a single -class combination. They will also be stationed in the first time to find out the manned environment. At the same time, they will cooperate with the ground to carry out the two -cabin combination, three -cabin combination, large and small robotic arm tests, and the function test of the air gates.

Ask the sky's experimental cabin to launch everything, only owe Dongfeng. Dreaming of the sky is gradually complete. Shenzhou 14, which has been "on a business trip" for more than a month, is about to enter the new cabin to start the life maintenance system, complete the assembly of the scientific experimental cabinet, and conduct cross -scientific experiments. The new space lectures will also be carried out in the experimental compartment.

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