The 3D printing integrated structure is a representative design for additive manufacturing (DfAM) structure. When designing with the thinking of additive manufacturing, it is necessary to break through the thinking limitations brought by casting, die-casting, and machining in the past. This process is full of challenges.
With the entry of structural integration in the application of new energy, the application points that can outperform the market in the next 5 years will be realized from "points" and "surfaces", from a corner to "lift", "jump" and shape The overall situation of change, and 3D printing has a natural cost advantage in realizing structural integration. With the application points that can outperform the market in the next 5 years, it will realize the application development of "point" and "surface". New ascent route.
Westinghouse Electric took full advantage of 3D printing to achieve structural integration and developed a 3D printed nuclear power fuel assembly isolation barrier.
Elon Musk explains that 3D printing technology has spawned the next generation of rockets
Breakthrough exploration
A typical nuclear power reactor includes a reactor vessel containing the core of the nuclear reactor. Inside the vessel, radially inwardly spaced from the reactor vessel is a substantially cylindrical core tube, and inside the tube is a shaper and a Baffle system, which allows the transition from a cylindrical barrel to a cylindrical barrel.
The reactor core is composed of a large number of elongated fuel assemblies, each of which includes a plurality of fuel rods containing fissile materials, which react to generate heat. The fuel rods of each fuel assembly are held in an organized, spaced array by a plurality of grids, which are axially spaced along the length of the fuel assembly, and are attached to a plurality of elongated controls of the fuel assembly Rod guide casing.
During reactor operation, a coolant fluid such as water is typically pumped into the reactor vessel through multiple inlet nozzles. The coolant fluid flows downward through the annular area defined between the reactor vessel and the core barrel, enters the lower gas chamber defined in the reactor vessel, and then passes upward through the fuel assembly of the reactor core.