Tsinghua University

Xingzhong Diao

Zuoyi Zhang

He Yan

Lei Wang

Haitao Wang

Yujie Dong

Zhengming Zhang

Libin Sun

Zhichun Fan

Disclosed are an electrical penetration assembly, a manufacturing method thereof, and an electrical penetration device, which relate to the technical field of electrical penetration. The electrical penetration assembly comprises sealing glass (), an outer tube () and a conductor () inserted into the outer tube (), wherein both ends of the outer tube () are blocked by supporting and fixing blocks (), and both ends of the conductor () respectively protrude from the corresponding supporting and fixing blocks (); the sealing glass () is sintered between the conductor () and the outer tube () and is configured to divide an annular cavity jointly enclosed by the conductor (), the outer tube () and the supporting and fixing blocks () into an upper cavity and a lower cavity; an optical fiber () penetrates the sealing glass (), at least one end of the optical fiber () is connected to an optical fiber splice () after protruding from the corresponding supporting and fixing block (), and a portion of the optical fiber () located in the sealing glass () is inscribed with a fiber Bragg grating to form a first fiber Bragg grating sensor (). By utilizing the first fiber Bragg grating sensor () to monitor the strain and temperature of the sealing glass () in real time, not only can it judge whether the electrical penetration assembly meets the requirements for hermeticity, but also enable precise control of the sintering temperature.

Electrical penetration assembly, manufacturing method thereof, and electrical penetration device

A reactor lateral reflection layer telescoped control rod capable of separately achieving cold shutdown includes an inner rod, an outer rod and a guide cylinder assembly which are vertically and coaxially arranged, wherein the outer rod and the guide cylinder assembly are hollow cylindrical bodies; the top end of the inner rod can move up and down inside the outer rod and the other end of the inner rod moves up and down, along with the top end, inside a control rod passage which is positioned below the guide cylinder assembly and is coaxial with the guide cylinder assembly; and the top end of the outer rod can move up and down in the guide cylinder assembly and the other end of the outer rod moves up and down, along with the top end, inside the control rod passage.

Reactivity control method and telescoped control rod for pebble-bed high-temperature gas-cooled reactor

Growing community of inventors

Beijing, China

Xingzhong Diao