A fuel assembly locking device for a liquid heavy metal reactor
A technology for liquid heavy metals and fuel assemblies, which is applied in the field of reactor core component design to achieve the effects of high safety, simple structure and convenient use
Inactive Publication Date: 2016-08-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The invention provides a fuel assembly locking device for a liquid heavy metal reactor, which is used to solve the defects of various fuel assembly solutions in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] figure 1 A schematic cross-sectional view of a fuel assembly locking device for a liquid heavy metal reactor provided by an embodiment of the present invention. like figure 1 As shown, the fuel assembly locking device of the liquid heavy metal reactor in this embodiment includes: core fuel assembly 1, core lower grid 2, grid guide groove ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a fuel assembly locking device of a liquid-state heavy metal reactor. The fuel assembly locking device comprises a reactor core fuel assembly (1), a lower grid plate (2) of a reactor core, a guide groove (3) of the grid plate, a fuel assembly pin (4), a fixed sleeve (5) and a fixed boss (6), wherein the reactor core fuel assembly (1) and the fuel assembly pin (4) are welded into a whole, the fixed sleeve (5) is axially fixed outside the fuel assembly pin (4) through a thread, and is capable of rotating around a center axis of the fuel assembly pin (4), the fixed boss (6) is welded on the surface of the fixed sleeve (5), the guide groove (3) of the grid plate is formed in a hole of the lower grid plate (2) of the reactor core, the fixed boss (6) is matched with the guide groove (3) of the grid plate, and the fuel assembly (1) is fixed on the lower grid plate (2) of the reactor core. The fuel assembly locking device provided by the embodiment of the invention is simple in structure and convenient to use; the fuel assembly locking device is located at a position with relatively weak neutron radiation when being used, the fuel assembly locking device is high in safety.
Description
technical field [0001] The invention relates to the technical field of core component design of a heavy metal cooling nuclear reactor, in particular to a fuel assembly locking device of a liquid heavy metal reactor. Background technique [0002] Liquid lead-bismuth alloys have become the preferred choice for spallation targets and coolants in accelerator-driven subcritical systems (Accelerator driven system; ADS) due to their good neutronic properties, excellent radiation resistance, heat transfer properties and safety features. The material of choice, while lead-bismuth coolant is also the material of choice for the coolant of advanced fast neutron reactors. Due to the inherent physical properties of the lead-bismuth coolant, its density is much higher than that of the fuel assembly of the liquid metal fast reactor, and the density difference will cause the fuel assembly to generate greater buoyancy, and it is necessary to consider the flow induced by the upward flow of the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G21C3/12
CPCY02E30/30
Inventor 何梅生柏云清吴宜灿
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI