Large nuclear reactor molten pool natural-convection heat transfer test system and method

A technology of natural convection and nuclear reactor, applied in the field of natural convection heat transfer test system of large nuclear reactor melting pool, it can solve the problem of small Rayleigh number of melting pool and achieve the effect of ensuring water temperature, reducing impact and facilitating flow adjustment

Active Publication Date: 2016-08-31
XI AN JIAOTONG UNIV
View PDF6 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small volume of the test section, the Rayleigh number of the molten pool is smaller than that of the reactor. The molten salt furnace uses the pouring metho

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large nuclear reactor molten pool natural-convection heat transfer test system and method
  • Large nuclear reactor molten pool natural-convection heat transfer test system and method
  • Large nuclear reactor molten pool natural-convection heat transfer test system and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] The present invention will be described in detail below in conjunction with the drawings and specific embodiments:

[0028] Such as figure 1 with figure 2 As shown, the present invention is a large-scale nuclear reactor melting pool natural convection heat transfer test system and method. The test system includes a large-scale nuclear reactor melting pool natural convection heat transfer test piece 1, a molten salt heating furnace 2 that provides a high-temperature melt, and The nitrogen source 3 connected to the test piece and the molten salt furnace, and the cooling water system; the first centrifugal pump 502 drives the water in the cooling water tank 4 to take away the decay heat source through the cooling channel of the test piece 1, and the heated cooling water passes through the plate heat exchange After the cooling of the device 7 and the cooling tower 8 return to the initial water temperature, return to the cooling water tank 4; until the temperature of the meltin...

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

No PUM Login to view more

Abstract

The invention relates to a large nuclear reactor molten pool natural-convection heat transfer test system and method. The system comprises a large molten pool natural-convection heat transfer test piece, a molten salt heating furnace supplying high temperature melt, a nitrogen source connected to the test piece and the molten salt furnace, and a cooling water loop. The test system also includes supporting power distribution equipment, instrument control equipment and data measurement and acquisition equipment. In the cooling water loop, a centrifugal water pump drives water in a cooling water tank to take away a decay heat source through a cooling channel of the test piece, heated cooling water restores to an initial water temperature through a plate heat exchanger and a cooling tower and then returns to the cooling water tank. When the molten pool temperature reaches a steady state, the test ends, and the waste liquid in the test piece is discharged into a waste liquid pool. The invention also provides a test method. By means of the large nuclear reactor molten pool natural-convection heat transfer test, molten pool heat transfer data under a reactor serious accident condition can be acquired for safety design.

Description

technical field [0001] The invention relates to the technical field of research on natural convection heat transfer characteristics of melting pools under serious accident conditions of reactors, and in particular to a natural convection heat transfer test system and method for melting pools of large nuclear reactors. Background technique [0002] If the reactor core of a nuclear power plant cannot be cooled sufficiently under severe accident conditions, the continuous accumulation of decay heat will cause the core to heat up sharply and melt, and the melted core melt will gradually migrate downward and melt through the support plate. Falling into the lower head to form a debris bed molten pool structure. Corresponding to the extreme condition of full core melting, the melting pool in the lower head generates natural convection with high Rayleigh number under the action of the internal heat source, and transfers heat to the wall of the lower head. If the forced cooling of t...

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
no application Login to view more
IPC IPC(8): G01N25/18G21C15/00
CPCG21C15/00G01N25/18Y02E30/30
Inventor 苏光辉张卢腾张亚培周瑜琨田文喜秋穗正
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap