According to Gansu TV news, on June 23, China's last Beidou networking
satellite was successfully launched, with 55 satellites flying in space,
which will soon provide services to global users. In the future, these
satellites need propellant and pressurized gas as power sources to
control propulsion and adjust attitude in orbit. Many of the containers
for storing these power sources come from 510 self-saving stations. Over
the years, 510 Research Institute has provided more than 30 fuel tanks
and more than 10 high-pressure gas cylinders for Beidou mission power
system. These two kinds of products are equivalent to the "fuel tank"
and "gas source" of the satellite power system, and are the lifeline of
the power support of the whole satellite. Ma Tianju, deputy general
manager of 510 pressure vessel business department, said: "in the early
stage of Beidou, the high-pressure gas cylinder we used was made of pure
titanium alloy. It was a pure metal cylinder, and its weight was very
heavy. Later, with the improvement of technology, we used titanium
lining and high-strength carbon fiber winding composite, such a
cylinder, on the whole, its products become lighter And its overall
pressure bearing capacity becomes stronger. At present, it belongs to
the international advanced level. This technology can completely break
the foreign monopoly on advanced technology, and provide corresponding
technical support for the high-pressure gas cylinders used in the
follow-up spacecraft of our country, and also can break this monopoly to
realize the complete localization of this kind of gas cylinder in
China. " Titanium lining and high strength carbon fiber winding
composite not only makes the product lighter, but also makes the
pressure bearing capacity of the product stronger. From the news, this
kind of technology has a great application prospect in the future
aerospace field. The first is that the technology is domestic leading,
breaking the monopoly of foreign technology; the second is that the
technology is indispensable, and its application product high-pressure
gas cylinder is an essential important part of spacecraft, and the
weight reduction is of great significance.
