Recently, CNNC announced that the steel containment top head of Hainan multi-purpose modular small reactor technology demonstration project "Linglong No.1" was successfully hoisted in place, marking the capping of the key structure of the world's first modular small demonstration reactor under construction and entering the peak period of internal installation.

▲Hoisting of "Linglong No.1"

This hoisting completed the last step of forming an integral steel containment, and provided a more complete and reliable protection barrier for the reactor core module, reactor internals, pressurizer and other important equipment that had been introduced in advance.

The "linglong-1" reactor building consists of three parts: internal structure, steel containment and outer concrete shielding shell. The steel containment is composed of bottom head, lower cylinder, upper cylinder and top head from bottom to top. Its shape is like a vertical capsule containing the internal structure of the reactor building, just like the "golden bell cover" to ensure the safety of "Linglong heart", It plays a key role in ensuring the integrity and sealing of the reactor building.

▲Hoisting of "Linglong No.1"

Linglong-1 is the world's first land-based commercial modular small reactor. It is a multi-functional modular small pressurized water reactor type independently developed by China National Nuclear Industry Corporation with independent intellectual property rights. It is another major achievement of independent innovation after "hualong-1". The tower crane used in the project is equipped with a micro special tower crane anti-collision system, which will escort the new brilliant chapter of the development of China's nuclear industry!

▲"Linglong No.1" is under construction on site

The new generation of active anti-collision system for tower crane equipment area adopts the latest millimeter wave radar sensor design. It is to actively detect obstacles entering the detection area and send alarm information to the main control room, so that operators can take timely measures to avoid; Or provide control signals to directly give instructions to the hoisting equipment. The data is connected by can signal, and the data connection is stable. Detect obstacles with horizontal distance, and detect obstacles on both sides of the arm level through data feedback to prevent collision with buildings and other hoisting equipment.