From the ground to the space of the sky, the "Sichuan made" of the experimental cabin
Author:Cover news Time:2022.07.24
Cover reporter Chen Yanzhang Yang Feng Bianxue
Do you fear that the Xinghe is far away, Danxin Geng Geng asked the sky. On the afternoon of July 24, the first experimental compartment of China Space Station -the launch of the test compartment of the sky compartment was successful, and it was also the first time that the space station welcomed the spacecraft to visit the spacecraft for the time.
It is worth mentioning that "Sichuan" gave the questioning compartment from the ground to the support from the ground to the rail operation. Firework products, measurement and control communication, residential environment, life protection ... Let's explore these Sichuan power launched in the experimental compartment.
Rocket launching:
Sichuan aerospace firework products account for more than 97%
The engine ignition, the separation of the booster, and the separation of the inter -level ... The Rockets will ask the Tiantian experimental compartment to send it to the sky.
More than 97%of these firework products are developed and produced by the 692 factory of the 7th Research Institute of China Aerospace Technology Group Co., Ltd. These include products such as the Long March 5 Yaoxi Load Rockets, the explosor, the non -electrical explosion system, the explosion bolt, the solid rocket and the separation device.
Feng Qi, deputy director of the Seventh Aerospace Products of China Aerospace Science and Technology Group Seventh House, was interviewed by the cover journalist of the cover
In addition, the 692 Factory of the Seventh Aerospace of the Aerospace Science and Technology also undertakes the development and production of products such as electricitycutors and explosion bolts, and contributes to the successful success of the task.
The role of these small parts is very critical. Taking the electric explosion management as an example, the staff of the 692 factory of the Seventh Aerospace Science and Technology Seventh Hospital introduced that I asked the Tianjin experimental compartment to achieve a precise meeting with the space station sky and the core compartment. It is the key to grasp the speed and direction. Thousands of miles. "
Asking the Tianjin experimental cabin constantly adjusting the posture in space, it is necessary to release the gas to generate thrust multiple times and angles to control the speed and direction, and the gas release of the gas of the Seventh Aerospace Science and Technology Seventh House of Aerospace Technology plays the electrical explosion tube of the 692 factory. The role of the gatekeeper ". Therefore, the change of every small movement of the Sky Experimental Curring is closely related to the company's fireworks. To achieve the final perfect docking, the electric explosion should work up to 20 times before and after.
Surveying and control communication:
The new generation of measurement and control system builds the "lifeline" of the world
"Wenchang radar tracking is normal, and the remote test signal is normal." Whether it is rocket launch or running, it is inseparable from precise measurement and control and reliable communication.
The Tenth Research Institute of China Electronic Technology Group, located in Chengdu, took the lead in developing the Luhaitian base testing and communication system to build a new generation of comprehensive test control system. It is the only connection with the ground after the spacecraft lifts off, just like the kite kite line of kite, so it is also called the "lifeline" of the spacecraft.
Employees of special valve business departments are processing a certain part
It is understood that the new generation of comprehensive test control system mainly has three characteristics of "intelligence, national, high -reliability".
In terms of "intelligence", the first manifestations are "unified hardware platforms, software definition functions" like smartphones. Different APPs can achieve different functions. On the same set of test control equipment, a variety of working modes can be run at the same time, and can be compatible with different signal modes, frequency points and goals. The second manifestations are automated operation capabilities, just like the aircraft's autonomous driver instrument. In addition to ensuring safety at the key node, the daily measurement and control movement can be fully operated automatically. In addition, the entire network measurement and control resources have realized the control of cloud architecture, and automatically allocated computing resources according to the task occupation status and health status.
In the new generation of measurement and control systems, from software to hardware, from basic components to the whole machine and system, it has all realized localization. Now the stability and reliability of domestic operating systems and domestic components have been greatly improved. The health management system integrates traditional fault trees, expert systems and modern big data technologies, and transforms the "disease -cure" model into "real -time body tests in real time, predicting diseases in the same way".
Testing technicians are doing fireworks non -destructive testing test
Living Environment:
Astronaut's space life quality "re -upgrade"
"It is done! It becomes!" Looking at the rocket, Feng Qi and Yu Xinyi were very excited. They were seven designers of the Seventh Research Institute of China Aerospace Science and Technology Group. They were making technical support at the launch site.
In order to make the interior and materials of the "Ask Sky" experimental cabin reflect the world's top level, the designers of the seventh part of the Seventh House of Aerospace Science and Technology have no thoughts. Because the "Ask Sky" experimental cabin was used as a backup of the core compartment of the "Tianhe", the two areas are similar to the two areas. The designers focus on the life experience of three astronauts living in the core compartment and continue to optimize the details. Make space life more quality. The astronauts feedback that the space is larger, and the seven designers increase the storage interface for the wealthy space of the experimental cabin sleep area, and the capacity expansion effect is obvious.
The astronauts hope that the sanitary area can take the initiative to leak, and the seven designers designed the disassembly of the rails in the sanitary area, so that the components of the health zone can be realized in the rail disassembly. The difficulty of maintenance is greatly reduced. Essence "Each cargo bag and each component have undergone massive simulation and calculations. In order to find the optimal solution of the material arrangement combination on the space station, our design accuracy is comparable to a landscape painting on rice grains." Yu Xinyi. " Introduction. General Secretary Xi often cares about the rest of the astronauts in the "World of Heaven and Earth", and the response to the answer is "sleeping well", which is indispensable for seven efforts. Feng Qi said: "With the support of the design of the seven parts, the noise control indicators in the Tianhe Sleep Area are better than the International Space Station, and the noise indicators in the sky are lower than that of Tianhe, which is enough to ensure high -quality sleep staff." Observatory observation station
Life Guarantee:
There is a "air purifier" in Sichuan in "Space Home"
In the test compartment, environmental control and life security score system (referred to as environmental control system) provides basic guarantees for the life safety of astronauts.
The 71111 Factory of China Aerospace Science and Technology Group Co., Ltd., located in Chengdu, is equipped with the CO2 subsystem and trace harmful gas removal subsystem. It is an indispensable guarantee for the safety of the lives of astronauts.
In these two subsystem projects similar to the "air purifier", the special valve business department was installed by Zhang Jinde, a squad leader of the special valve business department. The system assembly is not simply stitching each component as required. Often, it must be accurately controlled, and it has extremely high technical technical requirements.
Zhang Jinde said that he and the team guaranteed the "respiratory system" of the space station, which was related to the safety of astronauts. And the assembly work can be referred to, there is only one design drawing, the operating procedures and assembly tools must be pondered or developed by themselves. So for him, compared with the previous assembly work, this task needs to be more detailed and "brain burning".
In the team, Zhang Jinde is also the leader of innovation. He changes the traditional assembly method, connects each assembly position through the logistics layout, and processs the information in the process. Essence In previous years, the number of delivery teams per year was between 1,000 and 1,100 units, and the monthly delivery volume was less than 100. After innovation and transformation, 185 units were delivered in July, which was significantly improved.
At the same time, the 7111 Factory of the Seventh Academy of Aerospace Science and Technology also produced hundreds of direct components of over 5,000 pieces for the Long March 5 -Car Rockets servo. The servo institution is part of the rocket control system. Together with the rocket engine, it constitutes a thrust vector control system at all levels. Simply put, the servo institution is like the "steering wheel" of the Rockets. It is the execution element of the rocket gesture control. It follows the electronic instruction movement, controls the swing engine motion, and controls the rocket's attitude, so that the rocket is flying according to the scheduled track.
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