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High-power preheater for liquid metal sodium experimental loop

A technology of liquid metal sodium and experimental circuits, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as poor economic benefits, preheater power that cannot reach 100 kilowatts, and sudden drop in heating power. Achieve the effect of saving space, simple structure and reducing running resistance

Active Publication Date: 2017-08-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working medium of the device of this invention is deionized water and non-conductive medium, which has good conductivity for liquid metal sodium. If the device is directly used to preheat the liquid metal, the heating power will drop suddenly, and the power of the preheater cannot reach More than 100 kilowatts, the economic benefit is extremely poor

Method used

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  • High-power preheater for liquid metal sodium experimental loop
  • High-power preheater for liquid metal sodium experimental loop
  • High-power preheater for liquid metal sodium experimental loop

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Experimental program
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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0026] Such as figure 1 As shown, a high-power preheater for liquid metal sodium experimental circuit mainly includes: an inner tube 2, an electrical insulation layer 4, a positioning ring 5, two end sealing rings 3, an outer tube 6, two Counter electrode 7, insulation layer 9.

[0027] The inner tube 2 constitutes a liquid metal sodium flow channel and is installed obliquely to the horizontal plane, with the inlet 1 at the lower end and the outlet 8 at the upper end.

[0028] The outer tube 6 is used as an electric heating tube, and the heat generated is transferred to the inner tube through the electrical insulating layer, and the inner tube heats the liquid metal sodium.

[0029] There is an electrical insulating layer 4 between the inner tube 2 and the outer tube 6, the insulating layer 4 is composed of magnesium oxide or boron carbide, and is used for ins...

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Abstract

The invention relates to a high-power preheater for a liquid metal sodium experimental loop. The high-power preheater mainly comprises inner pipes, an electric insulating layer, a positioning ring, two end sealing rings, outer pipes, two pairs of electrodes and a heat preservation layer. Connection between multiple stages of heating parts is achieved in the manner that bends the same as the inner pipes in radius are used for connecting outlets of the inner pipes of last stages with inlets of the inner pipes of the next stages; the power of the preheater is adjusted through controlled silicon; and the provided power of the preheater can reach hundred kilowatts or above, large-flow liquid metal sodium can be preheated in a large temperature rise manner, the temperature rise promoting level can reach 400 DEG C or above, any sealing measures are avoided, the structure is very simple, and use and operation are convenient.

Description

technical field [0001] The invention belongs to the technical field of heating equipment for liquid metal sodium, and in particular relates to a high-power preheater used for a high-temperature experimental circuit of liquid metal sodium. Background technique [0002] Liquid metal sodium has many advantages, such as good heat transfer, heat-carrying flow characteristics and no moderation of fast neutrons in the core, making it the preferred reactor type (sodium-cooled fast reactor) for the fourth-generation nuclear power generation system. Ideal coolant. With the vigorous development of the sodium-cooled fast reactor, it is necessary to carry out extensive and in-depth research on various properties of liquid metal sodium in both theory and practice, especially in-depth research on the experimental aspects of liquid metal sodium. In order to make the results of the experimental research have guiding significance for the construction of the SFR, it is often necessary to preh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/14F24H9/20
CPCF24H1/142F24H9/2028
Inventor 巫英伟侯延栋田文喜苏光辉秋穗正张魁王明军
Owner XI AN JIAOTONG UNIV
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