"Hubei created" helps to "ask the sky" to exist

Today (July 24), at the Wenchang Launch Center in Hainan, I asked the Tianshi Experimental Class to enter the space smoothly under the escort of the Long March 5 Yao San carrying the rocket. In this launch mission, a group of "Hubei made" escorted the test compartment.

"Hubei -made" sealing parts make the experimental compartment safe and reliable

In the 42s of the Fourth Hospital of China Aerospace Science and Technology Group, the 42 -Hospital of China Aerospace Technology provided all cabin movements and static sealing products, and successfully escorted the "Ask heaven" to the "Tiangong".

Frequent closure of the cabin door, requiring the densely sealing parts to be strictly sew, but also durable. The sealing product of the test cabin can withstand the test of strict environment such as the alternation of the height of -90 ° C to 200 ° C, and the service life is more than 25 years. Dynamic and static structure sealing products jointly provide a strict sealing system for the cabin structure of the spacecraft and the space station, isolated the cabin and outer space, supporting the inside environment of the cabin, and ensuring the life safety and instruments of astronauts in space. Normal operation of the instrument.

Song Dan is one of the heads of sealing. He told reporters that the maximum diameter of the sealing products is close to 3m, and the error cannot exceed 0.01 mm. This accuracy is 1/5 of the hair wire. "Each product is a finalized product that is successfully tested. It must be excellent, 100 % perfect, and care for the safety of the astronauts with heart."

Since 1999, 42 four houses have provided tens of thousands of sealing products for various types of spacecraft, with a one -time inspection pass rate of 100%.

"Hubei made" hydrogen demise and ignition device, ignited the "first fire"

"Long March 5 B" will discharge low temperature hydrogen to the environment around the launch platform before the engine ignition. The flames formed by the mixing of hydrogen and air, when the concentration reaches a certain range, encounters electrostatic or bright fire, which will explode or blast. as a result of.

The 42 of the Fourth Hospital of China Aerospace Science and Technology Group developed a set of ignition devices for hydrogen discharge combustion system. This device can ignite the "first fire" emitted by the rocket within 2-3 seconds before the rocket hydrogen oxygen engine work. Launch is safe. This device has the characteristics of high security and high reliability. At present, related technologies have reached the world's forefront and domestic leading level.

It is reported that during the launching task of the Tiangtian experimental compartment, the hydrogen -elimination and ignition device was first applied to the Long March 5 series of carrier rockets.

"Hubei made" to a comfortable home for astronauts

The gas flow regulating valve produced by Hongfeng Sanjiang Group Hongfeng Company, E central Enterprise Enterprise, will play an important role in subsequent space stations.

The gas flow regulating valve is a part of the "space air conditioner". Its main function is to adjust the proportion of cooling gas flow by controlling the volume of the valve, thereby changing the temperature and humidity of the air in the cabin to ensure that the spacemen work is appropriate In the work environment in the cabin.

The plane accuracy of the fan blades of the gas flow regulating valve is a key indicator. With high accuracy, it is also necessary to ensure smooth rotation under the premise of ensuring accuracy. Responsible for processing is Li Gang, the winner of the National May Day Labor Medal. He used his hard work to ensure the "accuracy of the sky".

It is understood that Hongfeng Company has undertaken the production and production tasks of the manned aerospace project, which has a history of more than 30 years.

(Source: Changjiang Cloud)

【Edit: Yao Hao】

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